1 // Permission is hereby granted, free of charge, to any person obtaining
2 // a copy of this software and associated documentation files (the
3 // "Software"), to deal in the Software without restriction, including
4 // without limitation the rights to use, copy, modify, merge, publish,
5 // distribute, sublicense, and/or sell copies of the Software, and to
6 // permit persons to whom the Software is furnished to do so, subject to
7 // the following conditions:
9 // The above copyright notice and this permission notice shall be
10 // included in all copies or substantial portions of the Software.
12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 // Copyright (c) 2004-2005 Novell, Inc. (http://www.novell.com)
23 // Ravindra Kumar (rkumar@novell.com)
24 // Jordi Mas i Hernandez, jordi@ximian.com
25 // Mike Kestner (mkestner@novell.com)
26 // Daniel Nauck (dna(at)mono-project(dot)de)
27 // Carlos Alberto Cortez <calberto.cortez@gmail.com>
34 using System.Collections;
35 using System.ComponentModel;
36 using System.ComponentModel.Design;
38 using System.Runtime.InteropServices;
39 using System.Globalization;
41 using System.Collections.Generic;
44 namespace System.Windows.Forms
46 [DefaultEvent ("SelectedIndexChanged")]
47 [DefaultProperty ("Items")]
48 [Designer ("System.Windows.Forms.Design.ListViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
50 [ClassInterface (ClassInterfaceType.AutoDispatch)]
52 [Docking (DockingBehavior.Ask)]
54 public class ListView : Control
56 private ItemActivation activation = ItemActivation.Standard;
57 private ListViewAlignment alignment = ListViewAlignment.Top;
58 private bool allow_column_reorder;
59 private bool auto_arrange = true;
60 private bool check_boxes;
61 private readonly CheckedIndexCollection checked_indices;
62 private readonly CheckedListViewItemCollection checked_items;
63 private readonly ColumnHeaderCollection columns;
64 internal int focused_item_index = -1;
65 private bool full_row_select;
66 private bool grid_lines;
67 private ColumnHeaderStyle header_style = ColumnHeaderStyle.Clickable;
68 private bool hide_selection = true;
69 private bool hover_selection;
70 private IComparer item_sorter;
71 private readonly ListViewItemCollection items;
73 private readonly ListViewGroupCollection groups;
74 private bool owner_draw;
75 private bool show_groups = true;
77 private bool label_edit;
78 private bool label_wrap = true;
79 private bool multiselect = true;
80 private bool scrollable = true;
81 private bool hover_pending;
82 private readonly SelectedIndexCollection selected_indices;
83 private readonly SelectedListViewItemCollection selected_items;
84 private SortOrder sort_order = SortOrder.None;
85 private ImageList state_image_list;
86 internal bool updating;
87 private View view = View.LargeIcon;
88 private int layout_wd; // We might draw more than our client area
89 private int layout_ht; // therefore we need to have these two.
90 internal HeaderControl header_control;
91 internal ItemControl item_control;
92 internal ScrollBar h_scroll; // used for scrolling horizontally
93 internal ScrollBar v_scroll; // used for scrolling vertically
94 internal int h_marker; // Position markers for scrolling
95 internal int v_marker;
96 private int keysearch_tickcnt;
97 private string keysearch_text;
98 static private readonly int keysearch_keydelay = 1000;
99 private int[] reordered_column_indices;
100 private int[] reordered_items_indices;
101 private Point [] items_location;
102 private ItemMatrixLocation [] items_matrix_location;
103 private Size item_size; // used for caching item size
104 private int custom_column_width; // used when using Columns with SmallIcon/List views
105 private int hot_item_index = -1;
107 private bool hot_tracking;
108 private ListViewInsertionMark insertion_mark;
109 private bool show_item_tooltips;
110 private ToolTip item_tooltip;
111 private Size tile_size;
112 private bool virtual_mode;
113 private int virtual_list_size;
114 private bool right_to_left_layout;
117 // internal variables
118 internal ImageList large_image_list;
119 internal ImageList small_image_list;
120 internal Size text_size = Size.Empty;
123 static object AfterLabelEditEvent = new object ();
124 static object BeforeLabelEditEvent = new object ();
125 static object ColumnClickEvent = new object ();
126 static object ItemActivateEvent = new object ();
127 static object ItemCheckEvent = new object ();
128 static object ItemDragEvent = new object ();
129 static object SelectedIndexChangedEvent = new object ();
131 static object DrawColumnHeaderEvent = new object();
132 static object DrawItemEvent = new object();
133 static object DrawSubItemEvent = new object();
134 static object ItemCheckedEvent = new object ();
135 static object ItemMouseHoverEvent = new object ();
136 static object ItemSelectionChangedEvent = new object ();
137 static object CacheVirtualItemsEvent = new object ();
138 static object RetrieveVirtualItemEvent = new object ();
139 static object RightToLeftLayoutChangedEvent = new object ();
140 static object SearchForVirtualItemEvent = new object ();
141 static object VirtualItemsSelectionRangeChangedEvent = new object ();
144 public event LabelEditEventHandler AfterLabelEdit {
145 add { Events.AddHandler (AfterLabelEditEvent, value); }
146 remove { Events.RemoveHandler (AfterLabelEditEvent, value); }
151 [EditorBrowsable (EditorBrowsableState.Never)]
152 public new event EventHandler BackgroundImageChanged {
153 add { base.BackgroundImageChanged += value; }
154 remove { base.BackgroundImageChanged -= value; }
160 [EditorBrowsable (EditorBrowsableState.Never)]
161 public new event EventHandler BackgroundImageLayoutChanged {
162 add { base.BackgroundImageLayoutChanged += value; }
163 remove { base.BackgroundImageLayoutChanged -= value; }
167 public event LabelEditEventHandler BeforeLabelEdit {
168 add { Events.AddHandler (BeforeLabelEditEvent, value); }
169 remove { Events.RemoveHandler (BeforeLabelEditEvent, value); }
172 public event ColumnClickEventHandler ColumnClick {
173 add { Events.AddHandler (ColumnClickEvent, value); }
174 remove { Events.RemoveHandler (ColumnClickEvent, value); }
178 public event DrawListViewColumnHeaderEventHandler DrawColumnHeader {
179 add { Events.AddHandler(DrawColumnHeaderEvent, value); }
180 remove { Events.RemoveHandler(DrawColumnHeaderEvent, value); }
183 public event DrawListViewItemEventHandler DrawItem {
184 add { Events.AddHandler(DrawItemEvent, value); }
185 remove { Events.RemoveHandler(DrawItemEvent, value); }
188 public event DrawListViewSubItemEventHandler DrawSubItem {
189 add { Events.AddHandler(DrawSubItemEvent, value); }
190 remove { Events.RemoveHandler(DrawSubItemEvent, value); }
194 public event EventHandler ItemActivate {
195 add { Events.AddHandler (ItemActivateEvent, value); }
196 remove { Events.RemoveHandler (ItemActivateEvent, value); }
199 public event ItemCheckEventHandler ItemCheck {
200 add { Events.AddHandler (ItemCheckEvent, value); }
201 remove { Events.RemoveHandler (ItemCheckEvent, value); }
205 public event ItemCheckedEventHandler ItemChecked {
206 add { Events.AddHandler (ItemCheckedEvent, value); }
207 remove { Events.RemoveHandler (ItemCheckedEvent, value); }
211 public event ItemDragEventHandler ItemDrag {
212 add { Events.AddHandler (ItemDragEvent, value); }
213 remove { Events.RemoveHandler (ItemDragEvent, value); }
217 public event ListViewItemMouseHoverEventHandler ItemMouseHover {
218 add { Events.AddHandler (ItemMouseHoverEvent, value); }
219 remove { Events.RemoveHandler (ItemMouseHoverEvent, value); }
222 public event ListViewItemSelectionChangedEventHandler ItemSelectionChanged {
223 add { Events.AddHandler (ItemSelectionChangedEvent, value); }
224 remove { Events.RemoveHandler (ItemSelectionChangedEvent, value); }
228 [EditorBrowsable (EditorBrowsableState.Never)]
229 public new event EventHandler PaddingChanged {
230 add { base.PaddingChanged += value; }
231 remove { base.PaddingChanged -= value; }
236 [EditorBrowsable (EditorBrowsableState.Never)]
237 public new event PaintEventHandler Paint {
238 add { base.Paint += value; }
239 remove { base.Paint -= value; }
242 public event EventHandler SelectedIndexChanged {
243 add { Events.AddHandler (SelectedIndexChangedEvent, value); }
244 remove { Events.RemoveHandler (SelectedIndexChangedEvent, value); }
248 [EditorBrowsable (EditorBrowsableState.Never)]
249 public new event EventHandler TextChanged {
250 add { base.TextChanged += value; }
251 remove { base.TextChanged -= value; }
255 public event CacheVirtualItemsEventHandler CacheVirtualItems {
256 add { Events.AddHandler (CacheVirtualItemsEvent, value); }
257 remove { Events.RemoveHandler (CacheVirtualItemsEvent, value); }
260 public event RetrieveVirtualItemEventHandler RetrieveVirtualItem {
261 add { Events.AddHandler (RetrieveVirtualItemEvent, value); }
262 remove { Events.RemoveHandler (RetrieveVirtualItemEvent, value); }
265 public event EventHandler RightToLeftLayoutChanged {
266 add { Events.AddHandler (RightToLeftLayoutChangedEvent, value); }
267 remove { Events.RemoveHandler (RightToLeftLayoutChangedEvent, value); }
270 public event SearchForVirtualItemEventHandler SearchForVirtualItem {
271 add { Events.AddHandler (SearchForVirtualItemEvent, value); }
272 remove { Events.AddHandler (SearchForVirtualItemEvent, value); }
275 public event ListViewVirtualItemsSelectionRangeChangedEventHandler VirtualItemsSelectionRangeChanged {
276 add { Events.AddHandler (VirtualItemsSelectionRangeChangedEvent, value); }
277 remove { Events.RemoveHandler (VirtualItemsSelectionRangeChangedEvent, value); }
283 #region Public Constructors
286 background_color = ThemeEngine.Current.ColorWindow;
288 groups = new ListViewGroupCollection (this);
290 items = new ListViewItemCollection (this);
291 items.Changed += new CollectionChangedHandler (OnItemsChanged);
292 checked_indices = new CheckedIndexCollection (this);
293 checked_items = new CheckedListViewItemCollection (this);
294 columns = new ColumnHeaderCollection (this);
295 foreground_color = SystemColors.WindowText;
296 selected_indices = new SelectedIndexCollection (this);
297 selected_items = new SelectedListViewItemCollection (this);
298 items_location = new Point [16];
299 items_matrix_location = new ItemMatrixLocation [16];
300 reordered_items_indices = new int [16];
302 item_tooltip = new ToolTip ();
303 item_tooltip.Active = false;
304 insertion_mark = new ListViewInsertionMark (this);
307 InternalBorderStyle = BorderStyle.Fixed3D;
309 header_control = new HeaderControl (this);
310 header_control.Visible = false;
311 Controls.AddImplicit (header_control);
313 item_control = new ItemControl (this);
314 Controls.AddImplicit (item_control);
316 h_scroll = new ImplicitHScrollBar ();
317 Controls.AddImplicit (this.h_scroll);
319 v_scroll = new ImplicitVScrollBar ();
320 Controls.AddImplicit (this.v_scroll);
322 h_marker = v_marker = 0;
323 keysearch_tickcnt = 0;
325 // scroll bars are disabled initially
326 h_scroll.Visible = false;
327 h_scroll.ValueChanged += new EventHandler(HorizontalScroller);
328 v_scroll.Visible = false;
329 v_scroll.ValueChanged += new EventHandler(VerticalScroller);
332 base.KeyDown += new KeyEventHandler(ListView_KeyDown);
333 SizeChanged += new EventHandler (ListView_SizeChanged);
334 GotFocus += new EventHandler (FocusChanged);
335 LostFocus += new EventHandler (FocusChanged);
336 MouseWheel += new MouseEventHandler(ListView_MouseWheel);
337 MouseEnter += new EventHandler (ListView_MouseEnter);
338 Invalidated += new InvalidateEventHandler (ListView_Invalidated);
341 BackgroundImageTiled = false;
344 this.SetStyle (ControlStyles.UserPaint | ControlStyles.StandardClick
346 | ControlStyles.UseTextForAccessibility
350 #endregion // Public Constructors
352 #region Private Internal Properties
353 internal Size CheckBoxSize {
355 if (this.check_boxes) {
356 if (this.state_image_list != null)
357 return this.state_image_list.ImageSize;
359 return ThemeEngine.Current.ListViewCheckBoxSize;
365 internal Size ItemSize {
367 if (view != View.Details)
370 Size size = new Size ();
371 size.Height = item_size.Height;
372 for (int i = 0; i < columns.Count; i++)
373 size.Width += columns [i].Wd;
382 internal int HotItemIndex {
384 return hot_item_index;
387 hot_item_index = value;
392 internal bool UsingGroups {
394 return show_groups && groups.Count > 0 && view != View.List &&
395 Application.VisualStylesEnabled;
400 internal override bool ScaleChildrenInternal {
401 get { return false; }
404 internal bool UseCustomColumnWidth {
406 return (view == View.List || view == View.SmallIcon) && columns.Count > 0;
410 internal ColumnHeader EnteredColumnHeader {
412 return header_control.EnteredColumnHeader;
415 #endregion // Private Internal Properties
417 #region Protected Properties
418 protected override CreateParams CreateParams {
419 get { return base.CreateParams; }
422 protected override Size DefaultSize {
423 get { return ThemeEngine.Current.ListViewDefaultSize; }
426 protected override bool DoubleBuffered {
428 return base.DoubleBuffered;
431 base.DoubleBuffered = value;
435 #endregion // Protected Properties
437 #region Public Instance Properties
438 [DefaultValue (ItemActivation.Standard)]
439 public ItemActivation Activation {
440 get { return activation; }
442 if (value != ItemActivation.Standard && value != ItemActivation.OneClick &&
443 value != ItemActivation.TwoClick) {
444 throw new InvalidEnumArgumentException (string.Format
445 ("Enum argument value '{0}' is not valid for Activation", value));
448 if (hot_tracking && value != ItemActivation.OneClick)
449 throw new ArgumentException ("When HotTracking is on, activation must be ItemActivation.OneClick");
456 [DefaultValue (ListViewAlignment.Top)]
458 public ListViewAlignment Alignment {
459 get { return alignment; }
461 if (value != ListViewAlignment.Default && value != ListViewAlignment.Left &&
462 value != ListViewAlignment.SnapToGrid && value != ListViewAlignment.Top) {
463 throw new InvalidEnumArgumentException (string.Format
464 ("Enum argument value '{0}' is not valid for Alignment", value));
467 if (this.alignment != value) {
469 // alignment does not matter in Details/List views
470 if (this.view == View.LargeIcon || this.View == View.SmallIcon)
476 [DefaultValue (false)]
477 public bool AllowColumnReorder {
478 get { return allow_column_reorder; }
479 set { allow_column_reorder = value; }
482 [DefaultValue (true)]
483 public bool AutoArrange {
484 get { return auto_arrange; }
486 if (auto_arrange != value) {
487 auto_arrange = value;
488 // autoarrange does not matter in Details/List views
489 if (this.view == View.LargeIcon || this.View == View.SmallIcon)
495 public override Color BackColor {
497 if (background_color.IsEmpty)
498 return ThemeEngine.Current.ColorWindow;
500 return background_color;
503 background_color = value;
504 item_control.BackColor = value;
510 [EditorBrowsable (EditorBrowsableState.Never)]
511 public override Image BackgroundImage {
512 get { return base.BackgroundImage; }
513 set { base.BackgroundImage = value; }
519 [EditorBrowsable (EditorBrowsableState.Never)]
520 public override ImageLayout BackgroundImageLayout {
522 return base.BackgroundImageLayout;
525 base.BackgroundImageLayout = value;
529 [DefaultValue (false)]
530 public bool BackgroundImageTiled {
532 return item_control.BackgroundImageLayout == ImageLayout.Tile;
535 ImageLayout new_image_layout = value ? ImageLayout.Tile : ImageLayout.None;
536 if (new_image_layout == item_control.BackgroundImageLayout)
539 item_control.BackgroundImageLayout = new_image_layout;
544 [DefaultValue (BorderStyle.Fixed3D)]
546 public BorderStyle BorderStyle {
547 get { return InternalBorderStyle; }
548 set { InternalBorderStyle = value; }
551 [DefaultValue (false)]
552 public bool CheckBoxes {
553 get { return check_boxes; }
555 if (check_boxes != value) {
557 if (value && View == View.Tile)
558 throw new NotSupportedException ("CheckBoxes are not"
559 + " supported in Tile view. Choose a different"
560 + " view or set CheckBoxes to false.");
567 //UIA Framework: Event used by ListView to set/unset Toggle Pattern
568 OnUIACheckBoxesChanged ();
575 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
576 public CheckedIndexCollection CheckedIndices {
577 get { return checked_indices; }
581 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
582 public CheckedListViewItemCollection CheckedItems {
583 get { return checked_items; }
587 [Editor ("System.Windows.Forms.Design.ColumnHeaderCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
589 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
591 [MergableProperty (false)]
592 public ColumnHeaderCollection Columns {
593 get { return columns; }
597 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
598 public ListViewItem FocusedItem {
600 if (focused_item_index == -1)
603 return GetItemAtDisplayIndex (focused_item_index);
607 if (value == null || value.ListView != this ||
611 SetFocusedItem (value.DisplayIndex);
616 public override Color ForeColor {
618 if (foreground_color.IsEmpty)
619 return ThemeEngine.Current.ColorWindowText;
621 return foreground_color;
623 set { foreground_color = value; }
626 [DefaultValue (false)]
627 public bool FullRowSelect {
628 get { return full_row_select; }
630 if (full_row_select != value) {
631 full_row_select = value;
632 InvalidateSelection ();
637 [DefaultValue (false)]
638 public bool GridLines {
639 get { return grid_lines; }
641 if (grid_lines != value) {
648 [DefaultValue (ColumnHeaderStyle.Clickable)]
649 public ColumnHeaderStyle HeaderStyle {
650 get { return header_style; }
652 if (header_style == value)
656 case ColumnHeaderStyle.Clickable:
657 case ColumnHeaderStyle.Nonclickable:
658 case ColumnHeaderStyle.None:
661 throw new InvalidEnumArgumentException (string.Format
662 ("Enum argument value '{0}' is not valid for ColumnHeaderStyle", value));
665 header_style = value;
666 if (view == View.Details)
671 [DefaultValue (true)]
672 public bool HideSelection {
673 get { return hide_selection; }
675 if (hide_selection != value) {
676 hide_selection = value;
677 InvalidateSelection ();
683 [DefaultValue (false)]
684 public bool HotTracking {
689 if (hot_tracking == value)
692 hot_tracking = value;
694 hover_selection = true;
695 activation = ItemActivation.OneClick;
701 [DefaultValue (false)]
702 public bool HoverSelection {
703 get { return hover_selection; }
706 if (hot_tracking && value == false)
707 throw new ArgumentException ("When HotTracking is on, hover selection must be true");
709 hover_selection = value;
714 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
716 public ListViewInsertionMark InsertionMark {
718 return insertion_mark;
724 [Editor ("System.Windows.Forms.Design.ListViewItemCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
726 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
728 [MergableProperty (false)]
729 public ListViewItemCollection Items {
730 get { return items; }
733 [DefaultValue (false)]
734 public bool LabelEdit {
735 get { return label_edit; }
737 if (value != label_edit) {
741 // UIA Framework: Event used by Value Pattern in ListView.ListItem provider
742 OnUIALabelEditChanged ();
749 [DefaultValue (true)]
751 public bool LabelWrap {
752 get { return label_wrap; }
754 if (label_wrap != value) {
761 [DefaultValue (null)]
762 public ImageList LargeImageList {
763 get { return large_image_list; }
765 large_image_list = value;
771 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
772 public IComparer ListViewItemSorter {
774 if (View != View.SmallIcon && View != View.LargeIcon && item_sorter is ItemComparer)
779 if (item_sorter != value) {
786 [DefaultValue (true)]
787 public bool MultiSelect {
788 get { return multiselect; }
790 if (value != multiselect) {
794 // UIA Framework: Event used by Selection Pattern in ListView.ListItem provider
795 OnUIAMultiSelectChanged ();
803 [DefaultValue(false)]
804 public bool OwnerDraw {
805 get { return owner_draw; }
813 [EditorBrowsable (EditorBrowsableState.Never)]
814 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
815 public new Padding Padding {
820 base.Padding = value;
824 [MonoTODO ("RTL not supported")]
826 [DefaultValue (false)]
827 public virtual bool RightToLeftLayout {
828 get { return right_to_left_layout; }
830 if (right_to_left_layout != value) {
831 right_to_left_layout = value;
832 OnRightToLeftLayoutChanged (EventArgs.Empty);
838 [DefaultValue (true)]
839 public bool Scrollable {
840 get { return scrollable; }
842 if (scrollable != value) {
850 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
851 public SelectedIndexCollection SelectedIndices {
852 get { return selected_indices; }
856 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
857 public SelectedListViewItemCollection SelectedItems {
858 get { return selected_items; }
863 public bool ShowGroups {
864 get { return show_groups; }
866 if (show_groups != value) {
870 // UIA Framework: Used to update a11y Tree
871 OnUIAShowGroupsChanged ();
876 [LocalizableAttribute (true)]
877 [MergableProperty (false)]
878 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
879 [Editor ("System.Windows.Forms.Design.ListViewGroupCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
880 public ListViewGroupCollection Groups {
881 get { return groups; }
884 [DefaultValue (false)]
885 public bool ShowItemToolTips {
887 return show_item_tooltips;
890 show_item_tooltips = value;
891 item_tooltip.Active = false;
896 [DefaultValue (null)]
897 public ImageList SmallImageList {
898 get { return small_image_list; }
900 small_image_list = value;
905 [DefaultValue (SortOrder.None)]
906 public SortOrder Sorting {
907 get { return sort_order; }
909 if (!Enum.IsDefined (typeof (SortOrder), value)) {
910 throw new InvalidEnumArgumentException ("value", (int) value,
914 if (sort_order == value)
920 if (virtual_mode) // Sorting is not allowed in virtual mode
924 if (value == SortOrder.None) {
925 if (item_sorter != null) {
926 // ListViewItemSorter should never be reset for SmallIcon
927 // and LargeIcon view
928 if (View != View.SmallIcon && View != View.LargeIcon)
932 // in .NET 1.1, only internal IComparer would be
934 if (item_sorter is ItemComparer)
940 if (item_sorter == null)
941 item_sorter = new ItemComparer (value);
942 if (item_sorter is ItemComparer) {
944 item_sorter = new ItemComparer (value);
946 // in .NET 1.1, the sort order is not updated for
947 // SmallIcon and LargeIcon views if no custom IComparer
949 if (View != View.SmallIcon && View != View.LargeIcon)
950 item_sorter = new ItemComparer (value);
958 private void OnImageListChanged (object sender, EventArgs args)
960 item_control.Invalidate ();
963 [DefaultValue (null)]
964 public ImageList StateImageList {
965 get { return state_image_list; }
967 if (state_image_list == value)
970 if (state_image_list != null)
971 state_image_list.Images.Changed -= new EventHandler (OnImageListChanged);
973 state_image_list = value;
975 if (state_image_list != null)
976 state_image_list.Images.Changed += new EventHandler (OnImageListChanged);
984 [EditorBrowsable (EditorBrowsableState.Never)]
985 public override string Text {
986 get { return base.Text; }
988 if (value == base.Text)
998 public Size TileSize {
1003 if (value.Width <= 0 || value.Height <= 0)
1004 throw new ArgumentOutOfRangeException ("value");
1007 if (view == View.Tile)
1014 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1015 public ListViewItem TopItem {
1018 if (view == View.LargeIcon || view == View.SmallIcon || view == View.Tile)
1019 throw new InvalidOperationException ("Cannot get the top item in LargeIcon, SmallIcon or Tile view.");
1022 if (this.items.Count == 0)
1024 // if contents are not scrolled
1025 // it is the first item
1026 else if (h_marker == 0 && v_marker == 0)
1027 return this.items [0];
1028 // do a hit test for the scrolled position
1030 for (int i = 0; i < items.Count; i++) {
1031 Point item_loc = GetItemLocation (i);
1032 if (item_loc.X >= 0 && item_loc.Y >= 0)
1040 if (view == View.LargeIcon || view == View.SmallIcon || view == View.Tile)
1041 throw new InvalidOperationException ("Cannot set the top item in LargeIcon, SmallIcon or Tile view.");
1043 // .Net doesn't throw any exception in the cases below
1044 if (value == null || value.ListView != this)
1047 EnsureVisible (value.Index);
1053 [EditorBrowsable (EditorBrowsableState.Advanced)]
1054 [DefaultValue (true)]
1056 [MonoInternalNote ("Stub, not implemented")]
1057 public bool UseCompatibleStateImageBehavior {
1066 [DefaultValue (View.LargeIcon)]
1068 get { return view; }
1070 if (!Enum.IsDefined (typeof (View), value))
1071 throw new InvalidEnumArgumentException ("value", (int) value,
1074 if (view != value) {
1076 if (CheckBoxes && value == View.Tile)
1077 throw new NotSupportedException ("CheckBoxes are not"
1078 + " supported in Tile view. Choose a different"
1079 + " view or set CheckBoxes to false.");
1082 h_scroll.Value = v_scroll.Value = 0;
1087 // UIA Framework: Event used to update UIA Tree.
1088 OnUIAViewChanged ();
1095 [DefaultValue (false)]
1096 [RefreshProperties (RefreshProperties.Repaint)]
1097 public bool VirtualMode {
1099 return virtual_mode;
1102 if (virtual_mode == value)
1105 if (!virtual_mode && items.Count > 0)
1106 throw new InvalidOperationException ();
1108 virtual_mode = value;
1114 [RefreshProperties (RefreshProperties.Repaint)]
1115 public int VirtualListSize {
1117 return virtual_list_size;
1121 throw new ArgumentException ("value");
1123 if (virtual_list_size == value)
1126 virtual_list_size = value;
1128 selected_indices.Reset ();
1134 #endregion // Public Instance Properties
1136 #region Internal Methods Properties
1138 internal int FirstVisibleIndex {
1141 if (this.items.Count == 0)
1144 if (h_marker == 0 && v_marker == 0)
1147 Size item_size = ItemSize;
1148 for (int i = 0; i < items.Count; i++) {
1149 Rectangle item_rect = new Rectangle (GetItemLocation (i), item_size);
1150 if (item_rect.Right >= 0 && item_rect.Bottom >= 0)
1159 internal int LastVisibleIndex {
1161 for (int i = FirstVisibleIndex; i < Items.Count; i++) {
1162 if (View == View.List || Alignment == ListViewAlignment.Left) {
1163 if (GetItemLocation (i).X > item_control.ClientRectangle.Right)
1166 if (GetItemLocation (i).Y > item_control.ClientRectangle.Bottom)
1171 return Items.Count - 1;
1175 internal void OnSelectedIndexChanged ()
1177 if (IsHandleCreated)
1178 OnSelectedIndexChanged (EventArgs.Empty);
1181 internal int TotalWidth {
1182 get { return Math.Max (this.Width, this.layout_wd); }
1185 internal int TotalHeight {
1186 get { return Math.Max (this.Height, this.layout_ht); }
1189 internal void Redraw (bool recalculate)
1191 // Avoid calculations when control is being updated
1195 // VirtualMode doesn't do any calculations until handle is created
1196 if (virtual_mode && !IsHandleCreated)
1202 CalculateListView (this.alignment);
1207 void InvalidateSelection ()
1209 foreach (int selected_index in SelectedIndices)
1210 items [selected_index].Invalidate ();
1213 const int text_padding = 15;
1215 internal Size GetChildColumnSize (int index)
1217 Size ret_size = Size.Empty;
1218 ColumnHeader col = this.columns [index];
1220 if (col.Width == -2) { // autosize = max(items, columnheader)
1221 Size size = Size.Ceiling (TextRenderer.MeasureString
1222 (col.Text, this.Font));
1223 size.Width += text_padding;
1224 ret_size = BiggestItem (index);
1225 if (size.Width > ret_size.Width)
1228 else { // -1 and all the values < -2 are put under one category
1229 ret_size = BiggestItem (index);
1230 // fall back to empty columns' width if no subitem is available for a column
1231 if (ret_size.IsEmpty) {
1232 ret_size.Width = ThemeEngine.Current.ListViewEmptyColumnWidth;
1233 if (col.Text.Length > 0)
1234 ret_size.Height = Size.Ceiling (TextRenderer.MeasureString
1235 (col.Text, this.Font)).Height;
1237 ret_size.Height = this.Font.Height;
1241 ret_size.Height += text_padding;
1243 // adjust the size for icon and checkbox for 0th column
1245 ret_size.Width += (this.CheckBoxSize.Width + 4);
1246 if (this.small_image_list != null)
1247 ret_size.Width += this.small_image_list.ImageSize.Width;
1252 // Returns the size of biggest item text in a column
1253 // or the sum of the text and indent count if we are on 2.0
1254 private Size BiggestItem (int col)
1256 Size temp = Size.Empty;
1257 Size ret_size = Size.Empty;
1259 bool use_indent_count = small_image_list != null;
1261 // VirtualMode uses the first item text size
1262 if (virtual_mode && items.Count > 0) {
1263 ListViewItem item = items [0];
1264 ret_size = Size.Ceiling (TextRenderer.MeasureString (item.SubItems[col].Text,
1267 if (use_indent_count)
1268 ret_size.Width += item.IndentCount * small_image_list.ImageSize.Width;
1271 // 0th column holds the item text, we check the size of
1272 // the various subitems falling in that column and get
1273 // the biggest one's size.
1274 foreach (ListViewItem item in items) {
1275 if (col >= item.SubItems.Count)
1278 temp = Size.Ceiling (TextRenderer.MeasureString
1279 (item.SubItems [col].Text, Font));
1282 if (use_indent_count)
1283 temp.Width += item.IndentCount * small_image_list.ImageSize.Width;
1286 if (temp.Width > ret_size.Width)
1293 // adjustment for space in Details view
1294 if (!ret_size.IsEmpty && view == View.Details)
1295 ret_size.Width += ThemeEngine.Current.ListViewItemPaddingWidth;
1300 const int max_wrap_padding = 30;
1302 // Sets the size of the biggest item text as per the view
1303 private void CalcTextSize ()
1305 // clear the old value
1306 text_size = Size.Empty;
1308 if (items.Count == 0)
1311 text_size = BiggestItem (0);
1313 if (view == View.LargeIcon && this.label_wrap) {
1314 Size temp = Size.Empty;
1315 if (this.check_boxes)
1316 temp.Width += 2 * this.CheckBoxSize.Width;
1317 int icon_w = LargeImageList == null ? 12 : LargeImageList.ImageSize.Width;
1318 temp.Width += icon_w + max_wrap_padding;
1319 // wrapping is done for two lines only
1320 if (text_size.Width > temp.Width) {
1321 text_size.Width = temp.Width;
1322 text_size.Height *= 2;
1325 else if (view == View.List) {
1326 // in list view max text shown in determined by the
1327 // control width, even if scolling is enabled.
1328 int max_wd = this.Width - (this.CheckBoxSize.Width - 2);
1329 if (this.small_image_list != null)
1330 max_wd -= this.small_image_list.ImageSize.Width;
1332 if (text_size.Width > max_wd)
1333 text_size.Width = max_wd;
1336 // we do the default settings, if we have got 0's
1337 if (text_size.Height <= 0)
1338 text_size.Height = this.Font.Height;
1339 if (text_size.Width <= 0)
1340 text_size.Width = this.Width;
1342 // little adjustment
1343 text_size.Width += 2;
1344 text_size.Height += 2;
1347 private void Scroll (ScrollBar scrollbar, int delta)
1349 if (delta == 0 || !scrollbar.Visible)
1353 if (scrollbar == h_scroll)
1354 max = h_scroll.Maximum - item_control.Width;
1356 max = v_scroll.Maximum - item_control.Height;
1358 int val = scrollbar.Value + delta;
1361 else if (val < scrollbar.Minimum)
1362 val = scrollbar.Minimum;
1363 scrollbar.Value = val;
1366 private void CalculateScrollBars ()
1368 Rectangle client_area = ClientRectangle;
1369 int height = client_area.Height;
1370 int width = client_area.Width;
1373 h_scroll.Visible = false;
1374 v_scroll.Visible = false;
1375 item_control.Size = new Size (width, height);
1376 header_control.Width = width;
1380 // Don't calculate if the view is not displayable
1381 if (client_area.Height < 0 || client_area.Width < 0)
1384 // making a scroll bar visible might make
1385 // other scroll bar visible
1386 if (layout_wd > client_area.Right) {
1387 h_scroll.Visible = true;
1388 if ((layout_ht + h_scroll.Height) > client_area.Bottom)
1389 v_scroll.Visible = true;
1391 v_scroll.Visible = false;
1392 } else if (layout_ht > client_area.Bottom) {
1393 v_scroll.Visible = true;
1394 if ((layout_wd + v_scroll.Width) > client_area.Right)
1395 h_scroll.Visible = true;
1397 h_scroll.Visible = false;
1399 h_scroll.Visible = false;
1400 v_scroll.Visible = false;
1404 if (h_scroll.is_visible) {
1405 h_scroll.Location = new Point (client_area.X, client_area.Bottom - h_scroll.Height);
1406 h_scroll.Minimum = 0;
1408 // if v_scroll is visible, adjust the maximum of the
1409 // h_scroll to account for the width of v_scroll
1410 if (v_scroll.Visible) {
1411 h_scroll.Maximum = layout_wd + v_scroll.Width;
1412 h_scroll.Width = client_area.Width - v_scroll.Width;
1415 h_scroll.Maximum = layout_wd;
1416 h_scroll.Width = client_area.Width;
1419 h_scroll.LargeChange = client_area.Width;
1420 h_scroll.SmallChange = item_size.Width + ThemeEngine.Current.ListViewHorizontalSpacing;
1421 height -= h_scroll.Height;
1424 if (v_scroll.is_visible) {
1425 v_scroll.Location = new Point (client_area.Right - v_scroll.Width, client_area.Y);
1426 v_scroll.Minimum = 0;
1427 v_scroll.Maximum = layout_ht;
1429 // if h_scroll is visible, adjust the height of
1430 // v_scroll to account for the height of h_scroll
1431 if (h_scroll.Visible)
1432 v_scroll.Height = client_area.Height - h_scroll.Height;
1434 v_scroll.Height = client_area.Height;
1436 v_scroll.LargeChange = client_area.Height;
1437 v_scroll.SmallChange = Font.Height;
1438 width -= v_scroll.Width;
1441 item_control.Size = new Size (width, height);
1443 if (header_control.is_visible)
1444 header_control.Width = width;
1448 internal int GetReorderedColumnIndex (ColumnHeader column)
1450 if (reordered_column_indices == null)
1451 return column.Index;
1453 for (int i = 0; i < Columns.Count; i++)
1454 if (reordered_column_indices [i] == column.Index)
1461 internal ColumnHeader GetReorderedColumn (int index)
1463 if (reordered_column_indices == null)
1464 return Columns [index];
1466 return Columns [reordered_column_indices [index]];
1469 internal void ReorderColumn (ColumnHeader col, int index, bool fireEvent)
1473 ColumnReorderedEventHandler eh = (ColumnReorderedEventHandler) (Events [ColumnReorderedEvent]);
1475 ColumnReorderedEventArgs args = new ColumnReorderedEventArgs (col.Index, index, col);
1479 header_control.Invalidate ();
1480 item_control.Invalidate ();
1486 int column_count = Columns.Count;
1488 if (reordered_column_indices == null) {
1489 reordered_column_indices = new int [column_count];
1490 for (int i = 0; i < column_count; i++)
1491 reordered_column_indices [i] = i;
1494 if (reordered_column_indices [index] == col.Index)
1497 int[] curr = reordered_column_indices;
1498 int [] result = new int [column_count];
1500 for (int i = 0; i < column_count; i++) {
1501 if (curr_idx < column_count && curr [curr_idx] == col.Index)
1505 result [i] = col.Index;
1507 result [i] = curr [curr_idx++];
1510 ReorderColumns (result, true);
1513 internal void ReorderColumns (int [] display_indices, bool redraw)
1515 reordered_column_indices = display_indices;
1516 for (int i = 0; i < Columns.Count; i++) {
1517 ColumnHeader col = Columns [i];
1518 col.InternalDisplayIndex = reordered_column_indices [i];
1520 if (redraw && view == View.Details && IsHandleCreated) {
1522 header_control.Invalidate ();
1523 item_control.Invalidate ();
1527 internal void AddColumn (ColumnHeader newCol, int index, bool redraw)
1529 int column_count = Columns.Count;
1530 newCol.SetListView (this);
1532 int [] display_indices = new int [column_count];
1533 for (int i = 0; i < column_count; i++) {
1534 ColumnHeader col = Columns [i];
1536 display_indices [i] = index;
1538 int display_index = col.InternalDisplayIndex;
1539 if (display_index < index) {
1540 display_indices [i] = display_index;
1542 display_indices [i] = (display_index + 1);
1547 ReorderColumns (display_indices, redraw);
1551 Size LargeIconItemSize
1554 int image_w = LargeImageList == null ? 12 : LargeImageList.ImageSize.Width;
1555 int image_h = LargeImageList == null ? 2 : LargeImageList.ImageSize.Height;
1556 int h = text_size.Height + 2 + Math.Max (CheckBoxSize.Height, image_h);
1557 int w = Math.Max (text_size.Width, image_w);
1560 w += 2 + CheckBoxSize.Width;
1562 return new Size (w, h);
1566 Size SmallIconItemSize {
1568 int image_w = SmallImageList == null ? 0 : SmallImageList.ImageSize.Width;
1569 int image_h = SmallImageList == null ? 0 : SmallImageList.ImageSize.Height;
1570 int h = Math.Max (text_size.Height, Math.Max (CheckBoxSize.Height, image_h));
1571 int w = text_size.Width + image_w;
1574 w += 2 + CheckBoxSize.Width;
1576 return new Size (w, h);
1583 // Calculate tile size if needed
1584 // It appears that using Font.Size instead of a SizeF value can give us
1585 // a slightly better approach to the proportions defined in .Net
1586 if (tile_size == Size.Empty) {
1587 int image_w = LargeImageList == null ? 0 : LargeImageList.ImageSize.Width;
1588 int image_h = LargeImageList == null ? 0 : LargeImageList.ImageSize.Height;
1589 int w = (int)Font.Size * ThemeEngine.Current.ListViewTileWidthFactor + image_w + 4;
1590 int h = Math.Max ((int)Font.Size * ThemeEngine.Current.ListViewTileHeightFactor, image_h);
1592 tile_size = new Size (w, h);
1600 int GetDetailsItemHeight ()
1603 int checkbox_height = CheckBoxes ? CheckBoxSize.Height : 0;
1604 int small_image_height = SmallImageList == null ? 0 : SmallImageList.ImageSize.Height;
1605 item_height = Math.Max (checkbox_height, text_size.Height);
1606 item_height = Math.Max (item_height, small_image_height);
1610 void SetItemLocation (int index, int x, int y, int row, int col)
1612 Point old_location = items_location [index];
1613 if (old_location.X == x && old_location.Y == y)
1616 items_location [index] = new Point (x, y);
1617 items_matrix_location [index] = new ItemMatrixLocation (row, col);
1620 // Initial position matches item's position in ListViewItemCollection
1622 reordered_items_indices [index] = index;
1626 void ShiftItemsPositions (int from, int to, bool forward)
1629 for (int i = to + 1; i > from; i--) {
1630 reordered_items_indices [i] = reordered_items_indices [i - 1];
1632 ListViewItem item = items [reordered_items_indices [i]];
1634 item.DisplayIndex = i;
1638 for (int i = from - 1; i < to; i++) {
1639 reordered_items_indices [i] = reordered_items_indices [i + 1];
1641 ListViewItem item = items [reordered_items_indices [i]];
1643 item.DisplayIndex = i;
1649 internal void ChangeItemLocation (int display_index, Point new_pos)
1651 int new_display_index = GetDisplayIndexFromLocation (new_pos);
1652 if (new_display_index == display_index)
1655 int item_index = reordered_items_indices [display_index];
1656 ListViewItem item = items [item_index];
1658 bool forward = new_display_index < display_index;
1659 int index_from, index_to;
1661 index_from = new_display_index;
1662 index_to = display_index - 1;
1664 index_from = display_index + 1;
1665 index_to = new_display_index;
1668 ShiftItemsPositions (index_from, index_to, forward);
1670 reordered_items_indices [new_display_index] = item_index;
1673 item.DisplayIndex = new_display_index;
1677 int GetDisplayIndexFromLocation (Point loc)
1679 int display_index = -1;
1680 Rectangle item_area;
1683 if (loc.X < 0 || loc.Y < 0)
1686 // Adjustment to put in the next position refered by 'loc'
1687 loc.X -= item_size.Width / 2;
1691 for (int i = 0; i < items.Count; i++) {
1692 item_area = new Rectangle (GetItemLocation (i), item_size);
1693 item_area.Inflate (ThemeEngine.Current.ListViewHorizontalSpacing,
1694 ThemeEngine.Current.ListViewVerticalSpacing);
1696 if (item_area.Contains (loc)) {
1702 // Put in in last position
1703 if (display_index == -1)
1704 display_index = items.Count - 1;
1706 return display_index;
1709 // When using groups, the items with no group assigned
1710 // belong to the DefaultGroup
1711 int GetDefaultGroupItems ()
1714 foreach (ListViewItem item in items)
1715 if (item.Group == null)
1724 int[,] item_index_matrix;
1726 void CalculateRowsAndCols (Size item_size, bool left_aligned, int x_spacing, int y_spacing)
1728 Rectangle area = ClientRectangle;
1730 if (UseCustomColumnWidth)
1731 CalculateCustomColumnWidth ();
1734 // When groups are used the alignment is always top-aligned
1739 groups.DefaultGroup.ItemCount = GetDefaultGroupItems ();
1740 for (int i = 0; i < groups.InternalCount; i++) {
1741 ListViewGroup group = groups.GetInternalGroup (i);
1742 int items_in_group = group.GetActualItemCount ();
1744 if (items_in_group == 0)
1747 int group_cols = (int) Math.Floor ((double)(area.Width - v_scroll.Width + x_spacing) / (double)(item_size.Width + x_spacing));
1748 if (group_cols <= 0)
1750 int group_rows = (int) Math.Ceiling ((double)items_in_group / (double)group_cols);
1752 group.starting_row = rows;
1753 group.rows = group_rows;
1754 group.starting_item = items;
1755 group.current_item = 0; // Reset layout
1757 cols = Math.Max (group_cols, cols);
1759 items += items_in_group;
1764 // Simple matrix if no groups are used
1766 rows = (int) Math.Floor ((double)(area.Height - h_scroll.Height + y_spacing) / (double)(item_size.Height + y_spacing));
1769 cols = (int) Math.Ceiling ((double)items.Count / (double)rows);
1771 if (UseCustomColumnWidth)
1772 cols = (int) Math.Floor ((double)(area.Width - v_scroll.Width) / (double)(custom_column_width));
1774 cols = (int) Math.Floor ((double)(area.Width - v_scroll.Width + x_spacing) / (double)(item_size.Width + x_spacing));
1779 rows = (int) Math.Ceiling ((double)items.Count / (double)cols);
1783 item_index_matrix = new int [rows, cols];
1786 // When using custom column width, we look for the minimum one
1787 void CalculateCustomColumnWidth ()
1789 int min_width = Int32.MaxValue;
1790 for (int i = 0; i < columns.Count; i++) {
1791 int col_width = columns [i].Width;
1793 if (col_width < min_width)
1794 min_width = col_width;
1797 custom_column_width = min_width;
1800 void LayoutIcons (Size item_size, bool left_aligned, int x_spacing, int y_spacing)
1802 header_control.Visible = false;
1803 header_control.Size = Size.Empty;
1804 item_control.Visible = true;
1805 item_control.Location = Point.Empty;
1806 ItemSize = item_size; // Cache item size
1808 if (items.Count == 0)
1811 Size sz = item_size;
1813 bool using_groups = UsingGroups;
1816 CalculateRowsAndCols (sz, left_aligned, x_spacing, y_spacing);
1818 layout_wd = UseCustomColumnWidth ? cols * custom_column_width : cols * (sz.Width + x_spacing) - x_spacing;
1819 layout_ht = rows * (sz.Height + y_spacing) - y_spacing;
1822 CalculateGroupsLayout (sz, y_spacing, 0);
1825 int row = 0, col = 0;
1827 int display_index = 0;
1829 for (int i = 0; i < items.Count; i++) {
1832 ListViewGroup group = items [i].Group;
1834 group = groups.DefaultGroup;
1836 Point group_items_loc = group.items_area_location;
1837 int current_item = group.current_item++;
1838 int starting_row = group.starting_row;
1840 display_index = group.starting_item + current_item;
1841 row = (current_item / cols);
1842 col = current_item % cols;
1844 x = UseCustomColumnWidth ? col * custom_column_width : col * (item_size.Width + x_spacing);
1845 y = row * (item_size.Height + y_spacing) + group_items_loc.Y;
1847 SetItemLocation (display_index, x, y, row + starting_row, col);
1848 SetItemAtDisplayIndex (display_index, i);
1849 item_index_matrix [row + starting_row, col] = i;
1854 x = UseCustomColumnWidth ? col * custom_column_width : col * (item_size.Width + x_spacing);
1855 y = row * (item_size.Height + y_spacing);
1856 display_index = i; // Same as item index in Items
1858 SetItemLocation (i, x, y, row, col);
1859 item_index_matrix [row, col] = i;
1868 if (++col == cols) {
1878 ListViewItem item = items [i];
1880 item.DisplayIndex = display_index;
1882 item.SetPosition (new Point (x, y));
1889 item_control.Size = new Size (layout_wd, layout_ht);
1893 void CalculateGroupsLayout (Size item_size, int y_spacing, int y_origin)
1896 bool details = view == View.Details;
1898 for (int i = 0; i < groups.InternalCount; i++) {
1899 ListViewGroup group = groups.GetInternalGroup (i);
1900 if (group.ItemCount == 0)
1903 y += LayoutGroupHeader (group, y, item_size.Height, y_spacing, details ? group.ItemCount : group.rows);
1906 layout_ht = y; // Update height taking into account Groups' headers heights
1909 int LayoutGroupHeader (ListViewGroup group, int y_origin, int item_height, int y_spacing, int rows)
1911 Rectangle client_area = ClientRectangle;
1912 int header_height = text_size.Height + 10;
1914 group.HeaderBounds = new Rectangle (0, y_origin, client_area.Width - v_scroll.Width, header_height);
1915 group.items_area_location = new Point (0, y_origin + header_height);
1917 int items_area_height = ((item_height + y_spacing) * rows);
1918 return header_height + items_area_height + 10; // Add a small bottom margin
1921 void CalculateDetailsGroupItemsCount ()
1925 groups.DefaultGroup.ItemCount = GetDefaultGroupItems ();
1926 for (int i = 0; i < groups.InternalCount; i++) {
1927 ListViewGroup group = groups.GetInternalGroup (i);
1928 int items_in_group = group.GetActualItemCount ();
1930 if (items_in_group == 0)
1933 group.starting_item = items;
1934 group.current_item = 0; // Reset layout.
1935 items += items_in_group;
1940 void LayoutHeader ()
1943 for (int i = 0; i < Columns.Count; i++) {
1944 ColumnHeader col = GetReorderedColumn (i);
1947 col.CalcColumnHeader ();
1953 if (x < ClientRectangle.Width)
1954 x = ClientRectangle.Width;
1956 if (header_style == ColumnHeaderStyle.None) {
1957 header_control.Visible = false;
1958 header_control.Size = Size.Empty;
1959 layout_wd = ClientRectangle.Width;
1961 header_control.Width = x;
1962 header_control.Height = columns.Count > 0 ? columns [0].Ht : ThemeEngine.Current.ListViewGetHeaderHeight (this, Font);
1963 header_control.Visible = true;
1967 void LayoutDetails ()
1971 if (columns.Count == 0) {
1972 item_control.Visible = false;
1973 layout_wd = ClientRectangle.Width;
1974 layout_ht = ClientRectangle.Height;
1978 item_control.Visible = true;
1979 item_control.Location = Point.Empty;
1980 item_control.Width = ClientRectangle.Width;
1982 int item_height = GetDetailsItemHeight ();
1983 ItemSize = new Size (0, item_height); // We only cache Height for details view
1984 int y = header_control.Height;
1986 bool using_groups = UsingGroups;
1988 CalculateDetailsGroupItemsCount ();
1989 CalculateGroupsLayout (ItemSize, 2, y);
1993 for (int i = 0; i < items.Count; i++) {
1994 ListViewItem item = items [i];
1998 ListViewGroup group = item.Group;
2000 group = groups.DefaultGroup;
2002 int current_item = group.current_item++;
2003 Point group_items_loc = group.items_area_location;
2004 display_index = group.starting_item + current_item;
2006 y = current_item * (item_height + 2) + group_items_loc.Y;
2007 SetItemLocation (display_index, 0, y, 0, 0);
2008 SetItemAtDisplayIndex (display_index, i);
2009 item.SetPosition (new Point (0, y));
2014 SetItemLocation (i, 0, y, 0, 0);
2016 item.SetPosition (new Point (0, y));
2021 if (!virtual_mode) // Virtual mode sets Layout until draw time
2025 item.DisplayIndex = display_index;
2030 // some space for bottom gridline
2031 if (items.Count > 0 && grid_lines)
2035 if (!using_groups) // With groups it has been previously computed
2040 private void AdjustItemsPositionArray (int count)
2042 if (items_location.Length >= count)
2045 // items_location, items_matrix_location and reordered_items_indices must keep the same length
2046 count = Math.Max (count, items_location.Length * 2);
2047 items_location = new Point [count];
2048 items_matrix_location = new ItemMatrixLocation [count];
2049 reordered_items_indices = new int [count];
2052 private void CalculateListView (ListViewAlignment align)
2056 AdjustItemsPositionArray (items.Count);
2063 case View.SmallIcon:
2064 LayoutIcons (SmallIconItemSize, alignment == ListViewAlignment.Left,
2065 ThemeEngine.Current.ListViewHorizontalSpacing, 2);
2068 case View.LargeIcon:
2069 LayoutIcons (LargeIconItemSize, alignment == ListViewAlignment.Left,
2070 ThemeEngine.Current.ListViewHorizontalSpacing,
2071 ThemeEngine.Current.ListViewVerticalSpacing);
2075 LayoutIcons (SmallIconItemSize, true,
2076 ThemeEngine.Current.ListViewHorizontalSpacing, 2);
2080 if (!Application.VisualStylesEnabled)
2081 goto case View.LargeIcon;
2083 LayoutIcons (TileItemSize, alignment == ListViewAlignment.Left,
2084 ThemeEngine.Current.ListViewHorizontalSpacing,
2085 ThemeEngine.Current.ListViewVerticalSpacing);
2090 CalculateScrollBars ();
2093 internal Point GetItemLocation (int index)
2095 Point loc = items_location [index];
2096 loc.X -= h_marker; // Adjust to scroll
2102 internal int GetItemIndex (int display_index)
2104 return reordered_items_indices [display_index];
2107 internal ListViewItem GetItemAtDisplayIndex (int display_index)
2109 return items [reordered_items_indices [display_index]];
2112 internal void SetItemAtDisplayIndex (int display_index, int index)
2114 reordered_items_indices [display_index] = index;
2117 private bool KeySearchString (KeyEventArgs ke)
2119 int current_tickcnt = Environment.TickCount;
2120 if (keysearch_tickcnt > 0 && current_tickcnt - keysearch_tickcnt > keysearch_keydelay) {
2121 keysearch_text = string.Empty;
2124 if (!Char.IsLetterOrDigit ((char)ke.KeyCode))
2127 keysearch_text += (char)ke.KeyCode;
2128 keysearch_tickcnt = current_tickcnt;
2130 int prev_focused = FocusedItem == null ? 0 : FocusedItem.DisplayIndex;
2131 int start = prev_focused + 1 < Items.Count ? prev_focused + 1 : 0;
2133 ListViewItem item = FindItemWithText (keysearch_text, false, start, true, true);
2134 if (item != null && prev_focused != item.DisplayIndex) {
2135 selected_indices.Clear ();
2137 SetFocusedItem (item.DisplayIndex);
2138 item.Selected = true;
2139 EnsureVisible (GetItemIndex (item.DisplayIndex));
2145 private void OnItemsChanged ()
2147 ResetSearchString ();
2150 private void ResetSearchString ()
2152 keysearch_text = String.Empty;
2155 int GetAdjustedIndex (Keys key)
2159 if (View == View.Details) {
2162 result = FocusedItem.DisplayIndex - 1;
2165 result = FocusedItem.DisplayIndex + 1;
2166 if (result == items.Count)
2170 int last_index = LastVisibleIndex;
2171 Rectangle item_rect = new Rectangle (GetItemLocation (last_index), ItemSize);
2172 if (item_rect.Bottom > item_control.ClientRectangle.Bottom)
2174 if (FocusedItem.DisplayIndex == last_index) {
2175 if (FocusedItem.DisplayIndex < Items.Count - 1) {
2176 int page_size = item_control.Height / ItemSize.Height - 1;
2177 result = FocusedItem.DisplayIndex + page_size - 1;
2178 if (result >= Items.Count)
2179 result = Items.Count - 1;
2182 result = last_index;
2185 int first_index = FirstVisibleIndex;
2186 if (GetItemLocation (first_index).Y < 0)
2188 if (FocusedItem.DisplayIndex == first_index) {
2189 if (first_index > 0) {
2190 int page_size = item_control.Height / ItemSize.Height - 1;
2191 result = first_index - page_size + 1;
2196 result = first_index;
2202 ItemMatrixLocation item_matrix_location = items_matrix_location [FocusedItem.DisplayIndex];
2203 int row = item_matrix_location.Row;
2204 int col = item_matrix_location.Col;
2206 int adjusted_index = -1;
2212 adjusted_index = item_index_matrix [row, col - 1];
2216 if (col == (cols - 1))
2218 while (item_index_matrix [row, col + 1] == 0) {
2223 adjusted_index = item_index_matrix [row, col + 1];
2229 while (item_index_matrix [row - 1, col] == 0 && row != 1) {
2234 adjusted_index = item_index_matrix [row - 1, col];
2238 if (row == (rows - 1) || row == Items.Count - 1)
2240 while (item_index_matrix [row + 1, col] == 0) {
2245 adjusted_index = item_index_matrix [row + 1, col];
2252 return items [adjusted_index].DisplayIndex;
2255 ListViewItem selection_start;
2257 private bool SelectItems (ArrayList sel_items)
2259 bool changed = false;
2260 foreach (ListViewItem item in SelectedItems)
2261 if (!sel_items.Contains (item)) {
2262 item.Selected = false;
2265 foreach (ListViewItem item in sel_items)
2266 if (!item.Selected) {
2267 item.Selected = true;
2273 private void UpdateMultiSelection (int index, bool reselect)
2275 bool shift_pressed = (XplatUI.State.ModifierKeys & Keys.Shift) != 0;
2276 bool ctrl_pressed = (XplatUI.State.ModifierKeys & Keys.Control) != 0;
2277 ListViewItem item = GetItemAtDisplayIndex (index);
2279 if (shift_pressed && selection_start != null) {
2280 ArrayList list = new ArrayList ();
2281 int start_index = selection_start.DisplayIndex;
2282 int start = Math.Min (start_index, index);
2283 int end = Math.Max (start_index, index);
2284 if (View == View.Details) {
2285 for (int i = start; i <= end; i++)
2286 list.Add (GetItemAtDisplayIndex (i));
2288 ItemMatrixLocation start_item_matrix_location = items_matrix_location [start];
2289 ItemMatrixLocation end_item_matrix_location = items_matrix_location [end];
2290 int left = Math.Min (start_item_matrix_location.Col, end_item_matrix_location.Col);
2291 int right = Math.Max (start_item_matrix_location.Col, end_item_matrix_location.Col);
2292 int top = Math.Min (start_item_matrix_location.Row, end_item_matrix_location.Row);
2293 int bottom = Math.Max (start_item_matrix_location.Row, end_item_matrix_location.Row);
2295 for (int i = 0; i < items.Count; i++) {
2296 ItemMatrixLocation item_matrix_loc = items_matrix_location [i];
2298 if (item_matrix_loc.Row >= top && item_matrix_loc.Row <= bottom &&
2299 item_matrix_loc.Col >= left && item_matrix_loc.Col <= right)
2300 list.Add (GetItemAtDisplayIndex (i));
2304 } else if (ctrl_pressed) {
2305 item.Selected = !item.Selected;
2306 selection_start = item;
2309 // do not unselect, and reselect the item
2310 foreach (int itemIndex in SelectedIndices) {
2311 if (index == itemIndex)
2313 items [itemIndex].Selected = false;
2316 SelectedItems.Clear ();
2317 item.Selected = true;
2319 selection_start = item;
2323 internal override bool InternalPreProcessMessage (ref Message msg)
2325 if (msg.Msg == (int)Msg.WM_KEYDOWN) {
2326 Keys key_data = (Keys)msg.WParam.ToInt32();
2328 HandleNavKeys (key_data);
2331 return base.InternalPreProcessMessage (ref msg);
2334 bool HandleNavKeys (Keys key_data)
2336 if (Items.Count == 0 || !item_control.Visible)
2339 if (FocusedItem == null)
2344 SelectIndex (Items.Count - 1);
2357 SelectIndex (GetAdjustedIndex (key_data));
2361 SelectIndex (focused_item_index);
2362 ToggleItemsCheckState ();
2365 if (selected_indices.Count > 0)
2366 OnItemActivate (EventArgs.Empty);
2376 void ToggleItemsCheckState ()
2381 // Don't modify check state if StateImageList has less than 2 elements
2382 if (StateImageList != null && StateImageList.Images.Count < 2)
2385 if (SelectedIndices.Count > 0) {
2386 for (int i = 0; i < SelectedIndices.Count; i++) {
2387 ListViewItem item = Items [SelectedIndices [i]];
2388 item.Checked = !item.Checked;
2393 if (FocusedItem != null) {
2394 FocusedItem.Checked = !FocusedItem.Checked;
2395 SelectIndex (FocusedItem.Index);
2399 void SelectIndex (int display_index)
2401 if (display_index == -1)
2405 UpdateMultiSelection (display_index, true);
2406 else if (!GetItemAtDisplayIndex (display_index).Selected)
2407 GetItemAtDisplayIndex (display_index).Selected = true;
2409 SetFocusedItem (display_index);
2410 EnsureVisible (GetItemIndex (display_index)); // Index in Items collection, not display index
2413 private void ListView_KeyDown (object sender, KeyEventArgs ke)
2415 if (ke.Handled || Items.Count == 0 || !item_control.Visible)
2418 if (ke.Alt || ke.Control)
2421 ke.Handled = KeySearchString (ke);
2424 private MouseEventArgs TranslateMouseEventArgs (MouseEventArgs args)
2426 Point loc = PointToClient (Control.MousePosition);
2427 return new MouseEventArgs (args.Button, args.Clicks, loc.X, loc.Y, args.Delta);
2430 internal class ItemControl : Control {
2433 ListViewItem clicked_item;
2434 ListViewItem last_clicked_item;
2435 bool hover_processed = false;
2436 bool checking = false;
2437 ListViewItem prev_hovered_item;
2439 ListViewItem prev_tooltip_item;
2442 Point drag_begin = new Point (-1, -1);
2443 internal int dragged_item_index = -1;
2445 ListViewLabelEditTextBox edit_text_box;
2446 internal ListViewItem edit_item;
2447 LabelEditEventArgs edit_args;
2449 public ItemControl (ListView owner)
2452 this.SetStyle (ControlStyles.DoubleBuffer, true);
2453 DoubleClick += new EventHandler(ItemsDoubleClick);
2454 MouseDown += new MouseEventHandler(ItemsMouseDown);
2455 MouseMove += new MouseEventHandler(ItemsMouseMove);
2456 MouseHover += new EventHandler(ItemsMouseHover);
2457 MouseUp += new MouseEventHandler(ItemsMouseUp);
2460 void ItemsDoubleClick (object sender, EventArgs e)
2462 if (owner.activation == ItemActivation.Standard)
2463 owner.OnItemActivate (EventArgs.Empty);
2473 BoxSelect box_select_mode = BoxSelect.None;
2474 IList prev_selection;
2475 Point box_select_start;
2477 Rectangle box_select_rect;
2478 internal Rectangle BoxSelectRectangle {
2479 get { return box_select_rect; }
2481 if (box_select_rect == value)
2484 InvalidateBoxSelectRect ();
2485 box_select_rect = value;
2486 InvalidateBoxSelectRect ();
2490 void InvalidateBoxSelectRect ()
2492 if (BoxSelectRectangle.Size.IsEmpty)
2495 Rectangle edge = BoxSelectRectangle;
2501 edge.Y = BoxSelectRectangle.Bottom - 1;
2503 edge.Y = BoxSelectRectangle.Y - 1;
2505 edge.Height = BoxSelectRectangle.Height + 2;
2507 edge.X = BoxSelectRectangle.Right - 1;
2511 private Rectangle CalculateBoxSelectRectangle (Point pt)
2513 int left = Math.Min (box_select_start.X, pt.X);
2514 int right = Math.Max (box_select_start.X, pt.X);
2515 int top = Math.Min (box_select_start.Y, pt.Y);
2516 int bottom = Math.Max (box_select_start.Y, pt.Y);
2517 return Rectangle.FromLTRB (left, top, right, bottom);
2520 bool BoxIntersectsItem (int index)
2522 Rectangle r = new Rectangle (owner.GetItemLocation (index), owner.ItemSize);
2523 if (owner.View != View.Details) {
2525 r.Y += r.Height / 4;
2529 return BoxSelectRectangle.IntersectsWith (r);
2532 bool BoxIntersectsText (int index)
2534 Rectangle r = owner.GetItemAtDisplayIndex (index).TextBounds;
2535 return BoxSelectRectangle.IntersectsWith (r);
2538 ArrayList BoxSelectedItems {
2540 ArrayList result = new ArrayList ();
2541 for (int i = 0; i < owner.Items.Count; i++) {
2544 // Can't iterate over specific items properties in virtualmode
2545 if (owner.View == View.Details && !owner.FullRowSelect && !owner.VirtualMode)
2547 if (owner.View == View.Details && !owner.FullRowSelect)
2549 intersects = BoxIntersectsText (i);
2551 intersects = BoxIntersectsItem (i);
2554 result.Add (owner.GetItemAtDisplayIndex (i));
2560 private bool PerformBoxSelection (Point pt)
2562 if (box_select_mode == BoxSelect.None)
2565 BoxSelectRectangle = CalculateBoxSelectRectangle (pt);
2567 ArrayList box_items = BoxSelectedItems;
2571 switch (box_select_mode) {
2573 case BoxSelect.Normal:
2577 case BoxSelect.Control:
2578 items = new ArrayList ();
2579 foreach (int index in prev_selection)
2580 if (!box_items.Contains (owner.Items [index]))
2581 items.Add (owner.Items [index]);
2582 foreach (ListViewItem item in box_items)
2583 if (!prev_selection.Contains (item.Index))
2587 case BoxSelect.Shift:
2589 foreach (ListViewItem item in box_items)
2590 prev_selection.Remove (item.Index);
2591 foreach (int index in prev_selection)
2592 items.Add (owner.Items [index]);
2596 throw new Exception ("Unexpected Selection mode: " + box_select_mode);
2600 owner.SelectItems (items);
2606 private void ItemsMouseDown (object sender, MouseEventArgs me)
2608 owner.OnMouseDown (owner.TranslateMouseEventArgs (me));
2609 if (owner.items.Count == 0)
2612 bool box_selecting = false;
2613 Size item_size = owner.ItemSize;
2614 Point pt = new Point (me.X, me.Y);
2615 for (int i = 0; i < owner.items.Count; i++) {
2616 Rectangle item_rect = new Rectangle (owner.GetItemLocation (i), item_size);
2617 if (!item_rect.Contains (pt))
2620 // Actual item in 'i' position
2621 ListViewItem item = owner.GetItemAtDisplayIndex (i);
2623 if (item.CheckRectReal.Contains (pt)) {
2624 // Don't modify check state if we have only one image
2625 // and if we are in 1.1 profile only take into account
2627 if (owner.StateImageList != null && owner.StateImageList.Images.Count < 2
2634 // Generate an extra ItemCheck event when we got two clicks
2635 // (Match weird .Net behaviour)
2637 item.Checked = !item.Checked;
2639 item.Checked = !item.Checked;
2644 if (owner.View == View.Details) {
2645 bool over_text = item.TextBounds.Contains (pt);
2646 if (owner.FullRowSelect) {
2647 clicked_item = owner.items [i];
2648 bool over_item_column = (me.X > owner.Columns[0].X && me.X < owner.Columns[0].X + owner.Columns[0].Width);
2649 if (!over_text && over_item_column && owner.MultiSelect)
2650 box_selecting = true;
2651 } else if (over_text)
2652 clicked_item = item;
2654 owner.SetFocusedItem (i);
2656 clicked_item = item;
2662 if (clicked_item != null) {
2663 bool changed = !clicked_item.Selected;
2664 if (me.Button == MouseButtons.Left || (XplatUI.State.ModifierKeys == Keys.None && changed))
2665 owner.SetFocusedItem (clicked_item.DisplayIndex);
2667 if (owner.MultiSelect) {
2668 bool reselect = (!owner.LabelEdit || changed);
2669 if (me.Button == MouseButtons.Left || (XplatUI.State.ModifierKeys == Keys.None && changed))
2670 owner.UpdateMultiSelection (clicked_item.DisplayIndex, reselect);
2672 clicked_item.Selected = true;
2676 if (owner.VirtualMode && changed) {
2677 // Broken event - It's not fired from Item.Selected also
2678 ListViewVirtualItemsSelectionRangeChangedEventArgs args =
2679 new ListViewVirtualItemsSelectionRangeChangedEventArgs (0, owner.items.Count - 1, false);
2681 owner.OnVirtualItemsSelectionRangeChanged (args);
2684 // Report clicks only if the item was clicked. On MS the
2685 // clicks are only raised if you click an item
2687 if (me.Clicks > 1) {
2688 if (owner.CheckBoxes)
2689 clicked_item.Checked = !clicked_item.Checked;
2690 } else if (me.Clicks == 1) {
2691 if (owner.LabelEdit && !changed)
2692 BeginEdit (clicked_item); // this is probably not the correct place to execute BeginEdit
2695 if (owner.MultiSelect)
2696 box_selecting = true;
2697 else if (owner.SelectedItems.Count > 0)
2698 owner.SelectedItems.Clear ();
2701 if (box_selecting) {
2702 Keys mods = XplatUI.State.ModifierKeys;
2703 if ((mods & Keys.Shift) != 0)
2704 box_select_mode = BoxSelect.Shift;
2705 else if ((mods & Keys.Control) != 0)
2706 box_select_mode = BoxSelect.Control;
2708 box_select_mode = BoxSelect.Normal;
2709 box_select_start = pt;
2710 prev_selection = owner.SelectedIndices.List.Clone () as IList;
2714 private void ItemsMouseMove (object sender, MouseEventArgs me)
2716 bool done = PerformBoxSelection (new Point (me.X, me.Y));
2718 owner.OnMouseMove (owner.TranslateMouseEventArgs (me));
2722 if ((me.Button != MouseButtons.Left && me.Button != MouseButtons.Right) &&
2723 !hover_processed && owner.Activation != ItemActivation.OneClick
2725 && !owner.ShowItemToolTips
2730 Point pt = PointToClient (Control.MousePosition);
2731 ListViewItem item = owner.GetItemAt (pt.X, pt.Y);
2733 if (hover_processed && item != null && item != prev_hovered_item) {
2734 hover_processed = false;
2735 XplatUI.ResetMouseHover (Handle);
2738 // Need to invalidate the item in HotTracking to show/hide the underline style
2739 if (owner.Activation == ItemActivation.OneClick) {
2740 if (item == null && owner.HotItemIndex != -1) {
2742 if (owner.HotTracking)
2743 Invalidate (owner.Items [owner.HotItemIndex].Bounds); // Previous one
2746 Cursor = Cursors.Default;
2747 owner.HotItemIndex = -1;
2748 } else if (item != null && owner.HotItemIndex == -1) {
2750 if (owner.HotTracking)
2751 Invalidate (item.Bounds);
2754 Cursor = Cursors.Hand;
2755 owner.HotItemIndex = item.Index;
2759 if (me.Button == MouseButtons.Left || me.Button == MouseButtons.Right) {
2760 if (drag_begin.X == -1 && drag_begin.Y == -1) {
2762 drag_begin = new Point (me.X, me.Y);
2763 dragged_item_index = item.Index;
2767 Rectangle r = new Rectangle (drag_begin, SystemInformation.DragSize);
2768 if (!r.Contains (me.X, me.Y)) {
2769 ListViewItem dragged_item = owner.items [dragged_item_index];
2770 owner.OnItemDrag (new ItemDragEventArgs (me.Button, dragged_item));
2772 drag_begin = new Point (-1, -1);
2773 dragged_item_index = -1;
2779 if (owner.ShowItemToolTips) {
2781 owner.item_tooltip.Active = false;
2782 prev_tooltip_item = null;
2783 } else if (item != prev_tooltip_item && item.ToolTipText.Length > 0) {
2784 owner.item_tooltip.Active = true;
2785 owner.item_tooltip.SetToolTip (owner, item.ToolTipText);
2786 prev_tooltip_item = item;
2793 private void ItemsMouseHover (object sender, EventArgs e)
2795 if (owner.hover_pending) {
2796 owner.OnMouseHover (e);
2797 owner.hover_pending = false;
2803 hover_processed = true;
2804 Point pt = PointToClient (Control.MousePosition);
2805 ListViewItem item = owner.GetItemAt (pt.X, pt.Y);
2809 prev_hovered_item = item;
2811 if (owner.HoverSelection) {
2812 if (owner.MultiSelect)
2813 owner.UpdateMultiSelection (item.Index, true);
2815 item.Selected = true;
2817 owner.SetFocusedItem (item.DisplayIndex);
2818 Select (); // Make sure we have the focus, since MouseHover doesn't give it to us
2822 owner.OnItemMouseHover (new ListViewItemMouseHoverEventArgs (item));
2826 void HandleClicks (MouseEventArgs me)
2828 // if the click is not on an item,
2829 // clicks remains as 0
2832 owner.OnDoubleClick (EventArgs.Empty);
2833 } else if (clicks == 1) {
2834 owner.OnClick (EventArgs.Empty);
2836 owner.OnDoubleClick (EventArgs.Empty);
2837 owner.OnMouseDoubleClick (me);
2838 } else if (clicks == 1) {
2839 owner.OnClick (EventArgs.Empty);
2840 owner.OnMouseClick (me);
2847 private void ItemsMouseUp (object sender, MouseEventArgs me)
2849 MouseEventArgs owner_me = owner.TranslateMouseEventArgs (me);
2850 HandleClicks (owner_me);
2853 if (owner.Items.Count == 0) {
2855 owner.OnMouseUp (owner_me);
2859 Point pt = new Point (me.X, me.Y);
2861 Rectangle rect = Rectangle.Empty;
2862 if (clicked_item != null) {
2863 if (owner.view == View.Details && !owner.full_row_select)
2864 rect = clicked_item.GetBounds (ItemBoundsPortion.Label);
2866 rect = clicked_item.Bounds;
2868 if (rect.Contains (pt)) {
2869 switch (owner.activation) {
2870 case ItemActivation.OneClick:
2871 owner.OnItemActivate (EventArgs.Empty);
2874 case ItemActivation.TwoClick:
2875 if (last_clicked_item == clicked_item) {
2876 owner.OnItemActivate (EventArgs.Empty);
2877 last_clicked_item = null;
2879 last_clicked_item = clicked_item;
2882 // DoubleClick activation is handled in another handler
2886 } else if (!checking && owner.SelectedItems.Count > 0 && BoxSelectRectangle.Size.IsEmpty) {
2887 // Need this to clean up background clicks
2888 owner.SelectedItems.Clear ();
2892 owner.OnMouseUp (owner_me);
2895 private void ResetMouseState ()
2897 clicked_item = null;
2898 box_select_start = Point.Empty;
2899 BoxSelectRectangle = Rectangle.Empty;
2900 prev_selection = null;
2901 box_select_mode = BoxSelect.None;
2904 // Clean these bits in case the mouse buttons were
2905 // released before firing ItemDrag
2906 dragged_item_index = -1;
2907 drag_begin = new Point (-1, -1);
2910 private void LabelEditFinished (object sender, EventArgs e)
2912 EndEdit (edit_item);
2915 private void LabelEditCancelled (object sender, EventArgs e)
2917 edit_args.SetLabel (null);
2918 EndEdit (edit_item);
2921 private void LabelTextChanged (object sender, EventArgs e)
2923 if (edit_args != null)
2924 edit_args.SetLabel (edit_text_box.Text);
2927 internal void BeginEdit (ListViewItem item)
2929 if (edit_item != null)
2930 EndEdit (edit_item);
2932 if (edit_text_box == null) {
2933 edit_text_box = new ListViewLabelEditTextBox ();
2934 edit_text_box.BorderStyle = BorderStyle.FixedSingle;
2935 edit_text_box.EditingCancelled += new EventHandler (LabelEditCancelled);
2936 edit_text_box.EditingFinished += new EventHandler (LabelEditFinished);
2937 edit_text_box.TextChanged += new EventHandler (LabelTextChanged);
2938 edit_text_box.Visible = false;
2939 Controls.Add (edit_text_box);
2942 item.EnsureVisible();
2944 edit_text_box.Reset ();
2946 switch (owner.view) {
2948 case View.SmallIcon:
2950 edit_text_box.TextAlign = HorizontalAlignment.Left;
2951 edit_text_box.Bounds = item.GetBounds (ItemBoundsPortion.Label);
2952 SizeF sizef = TextRenderer.MeasureString (item.Text, item.Font);
2953 edit_text_box.Width = (int)sizef.Width + 4;
2954 edit_text_box.MaxWidth = owner.ClientRectangle.Width - edit_text_box.Bounds.X;
2955 edit_text_box.WordWrap = false;
2956 edit_text_box.Multiline = false;
2958 case View.LargeIcon:
2959 edit_text_box.TextAlign = HorizontalAlignment.Center;
2960 edit_text_box.Bounds = item.GetBounds (ItemBoundsPortion.Label);
2961 sizef = TextRenderer.MeasureString (item.Text, item.Font);
2962 edit_text_box.Width = (int)sizef.Width + 4;
2963 edit_text_box.MaxWidth = item.GetBounds(ItemBoundsPortion.Entire).Width;
2964 edit_text_box.MaxHeight = owner.ClientRectangle.Height - edit_text_box.Bounds.Y;
2965 edit_text_box.WordWrap = true;
2966 edit_text_box.Multiline = true;
2972 edit_text_box.Text = item.Text;
2973 edit_text_box.Font = item.Font;
2974 edit_text_box.Visible = true;
2975 edit_text_box.Focus ();
2976 edit_text_box.SelectAll ();
2978 edit_args = new LabelEditEventArgs (owner.Items.IndexOf (edit_item));
2979 owner.OnBeforeLabelEdit (edit_args);
2981 if (edit_args.CancelEdit)
2985 internal void CancelEdit (ListViewItem item)
2987 // do nothing if there's no item being edited, or if the
2988 // item being edited is not the one passed in
2989 if (edit_item == null || edit_item != item)
2992 edit_args.SetLabel (null);
2996 internal void EndEdit (ListViewItem item)
2998 // do nothing if there's no item being edited, or if the
2999 // item being edited is not the one passed in
3000 if (edit_item == null || edit_item != item)
3003 if (edit_text_box != null) {
3004 if (edit_text_box.Visible)
3005 edit_text_box.Visible = false;
3006 // ensure listview gets focus
3010 // Same as TreeView.EndEdit: need to have focus in synch
3011 Application.DoEvents ();
3014 // Create a new instance, since we could get a call to BeginEdit
3015 // from the handler and have fields out of synch
3017 LabelEditEventArgs args = new LabelEditEventArgs (item.Index, edit_args.Label);
3020 owner.OnAfterLabelEdit (args);
3021 if (!args.CancelEdit && args.Label != null)
3022 item.Text = args.Label;
3025 internal override void OnPaintInternal (PaintEventArgs pe)
3027 ThemeEngine.Current.DrawListViewItems (pe.Graphics, pe.ClipRectangle, owner);
3030 protected override void WndProc (ref Message m)
3032 switch ((Msg)m.Msg) {
3033 case Msg.WM_KILLFOCUS:
3034 owner.Select (false, true);
3036 case Msg.WM_SETFOCUS:
3037 owner.Select (false, true);
3039 case Msg.WM_LBUTTONDOWN:
3041 owner.Select (false, true);
3043 case Msg.WM_RBUTTONDOWN:
3045 owner.Select (false, true);
3050 base.WndProc (ref m);
3054 internal class ListViewLabelEditTextBox : TextBox
3059 int max_height = -1;
3060 int min_height = -1;
3062 int old_number_lines = 1;
3064 SizeF text_size_one_char;
3066 public ListViewLabelEditTextBox ()
3068 min_height = DefaultSize.Height;
3069 text_size_one_char = TextRenderer.MeasureString ("B", Font);
3072 public int MaxWidth {
3074 if (value < min_width)
3075 max_width = min_width;
3081 public int MaxHeight {
3083 if (value < min_height)
3084 max_height = min_height;
3090 public new int Width {
3100 public override Font Font {
3106 text_size_one_char = TextRenderer.MeasureString ("B", Font);
3110 protected override void OnTextChanged (EventArgs e)
3112 SizeF text_size = TextRenderer.MeasureString (Text, Font);
3114 int new_width = (int)text_size.Width + 8;
3117 ResizeTextBoxWidth (new_width);
3119 if (Width != max_width)
3120 ResizeTextBoxWidth (new_width);
3122 int number_lines = Lines.Length;
3124 if (number_lines != old_number_lines) {
3125 int new_height = number_lines * (int)text_size_one_char.Height + 4;
3126 old_number_lines = number_lines;
3128 ResizeTextBoxHeight (new_height);
3132 base.OnTextChanged (e);
3135 protected override bool IsInputKey (Keys key_data)
3137 if ((key_data & Keys.Alt) == 0) {
3138 switch (key_data & Keys.KeyCode) {
3145 return base.IsInputKey (key_data);
3148 protected override void OnKeyDown (KeyEventArgs e)
3153 switch (e.KeyCode) {
3157 OnEditingFinished (e);
3162 OnEditingCancelled (e);
3167 protected override void OnLostFocus (EventArgs e)
3170 OnEditingFinished (e);
3174 protected void OnEditingCancelled (EventArgs e)
3176 EventHandler eh = (EventHandler)(Events [EditingCancelledEvent]);
3181 protected void OnEditingFinished (EventArgs e)
3183 EventHandler eh = (EventHandler)(Events [EditingFinishedEvent]);
3188 private void ResizeTextBoxWidth (int new_width)
3190 if (new_width > max_width)
3191 base.Width = max_width;
3193 if (new_width >= min_width)
3194 base.Width = new_width;
3196 base.Width = min_width;
3199 private void ResizeTextBoxHeight (int new_height)
3201 if (new_height > max_height)
3202 base.Height = max_height;
3204 if (new_height >= min_height)
3205 base.Height = new_height;
3207 base.Height = min_height;
3210 public void Reset ()
3217 old_number_lines = 1;
3219 Text = String.Empty;
3224 static object EditingCancelledEvent = new object ();
3225 public event EventHandler EditingCancelled {
3226 add { Events.AddHandler (EditingCancelledEvent, value); }
3227 remove { Events.RemoveHandler (EditingCancelledEvent, value); }
3230 static object EditingFinishedEvent = new object ();
3231 public event EventHandler EditingFinished {
3232 add { Events.AddHandler (EditingFinishedEvent, value); }
3233 remove { Events.RemoveHandler (EditingFinishedEvent, value); }
3237 internal override void OnPaintInternal (PaintEventArgs pe)
3242 CalculateScrollBars ();
3245 void FocusChanged (object o, EventArgs args)
3247 if (Items.Count == 0)
3250 if (FocusedItem == null)
3253 ListViewItem focused_item = FocusedItem;
3255 if (focused_item.ListView != null) {
3256 focused_item.Invalidate ();
3257 focused_item.Layout ();
3258 focused_item.Invalidate ();
3262 private void ListView_Invalidated (object sender, InvalidateEventArgs e)
3264 // When the ListView is invalidated, we need to invalidate
3265 // the child controls.
3266 header_control.Invalidate ();
3267 item_control.Invalidate ();
3270 private void ListView_MouseEnter (object sender, EventArgs args)
3272 hover_pending = true; // Need a hover event for every Enter/Leave cycle
3275 private void ListView_MouseWheel (object sender, MouseEventArgs me)
3277 if (Items.Count == 0)
3280 int lines = me.Delta / 120;
3287 case View.SmallIcon:
3288 Scroll (v_scroll, -ItemSize.Height * SystemInformation.MouseWheelScrollLines * lines);
3290 case View.LargeIcon:
3291 Scroll (v_scroll, -(ItemSize.Height + ThemeEngine.Current.ListViewVerticalSpacing) * lines);
3294 Scroll (h_scroll, -ItemSize.Width * lines);
3298 if (!Application.VisualStylesEnabled)
3299 goto case View.LargeIcon;
3301 Scroll (v_scroll, -(ItemSize.Height + ThemeEngine.Current.ListViewVerticalSpacing) * 2 * lines);
3307 private void ListView_SizeChanged (object sender, EventArgs e)
3312 private void SetFocusedItem (int display_index)
3314 if (display_index != -1)
3315 GetItemAtDisplayIndex (display_index).Focused = true;
3316 else if (focused_item_index != -1 && focused_item_index < items.Count) // Previous focused item
3317 GetItemAtDisplayIndex (focused_item_index).Focused = false;
3318 focused_item_index = display_index;
3320 OnUIAFocusedItemChanged ();
3324 private void HorizontalScroller (object sender, EventArgs e)
3326 item_control.EndEdit (item_control.edit_item);
3328 // Avoid unnecessary flickering, when button is
3329 // kept pressed at the end
3330 if (h_marker != h_scroll.Value) {
3332 int pixels = h_marker - h_scroll.Value;
3334 h_marker = h_scroll.Value;
3335 if (header_control.Visible)
3336 XplatUI.ScrollWindow (header_control.Handle, pixels, 0, false);
3338 XplatUI.ScrollWindow (item_control.Handle, pixels, 0, false);
3342 private void VerticalScroller (object sender, EventArgs e)
3344 item_control.EndEdit (item_control.edit_item);
3346 // Avoid unnecessary flickering, when button is
3347 // kept pressed at the end
3348 if (v_marker != v_scroll.Value) {
3349 int pixels = v_marker - v_scroll.Value;
3350 Rectangle area = item_control.ClientRectangle;
3351 if (header_control.Visible) {
3352 area.Y += header_control.Height;
3353 area.Height -= header_control.Height;
3356 v_marker = v_scroll.Value;
3357 XplatUI.ScrollWindow (item_control.Handle, area, 0, pixels, false);
3361 internal override bool IsInputCharInternal (char charCode)
3365 #endregion // Internal Methods Properties
3367 #region Protected Methods
3368 protected override void CreateHandle ()
3370 base.CreateHandle ();
3371 for (int i = 0; i < SelectedItems.Count; i++)
3372 OnSelectedIndexChanged (EventArgs.Empty);
3375 protected override void Dispose (bool disposing)
3378 h_scroll.Dispose ();
3379 v_scroll.Dispose ();
3381 large_image_list = null;
3382 small_image_list = null;
3383 state_image_list = null;
3385 foreach (ColumnHeader col in columns)
3386 col.SetListView (null);
3389 if (!virtual_mode) // In virtual mode we don't save the items
3391 foreach (ListViewItem item in items)
3395 base.Dispose (disposing);
3398 protected override bool IsInputKey (Keys keyData)
3415 return base.IsInputKey (keyData);
3418 protected virtual void OnAfterLabelEdit (LabelEditEventArgs e)
3420 LabelEditEventHandler eh = (LabelEditEventHandler)(Events [AfterLabelEditEvent]);
3426 protected override void OnBackgroundImageChanged (EventArgs e)
3428 item_control.BackgroundImage = BackgroundImage;
3429 base.OnBackgroundImageChanged (e);
3433 protected virtual void OnBeforeLabelEdit (LabelEditEventArgs e)
3435 LabelEditEventHandler eh = (LabelEditEventHandler)(Events [BeforeLabelEditEvent]);
3440 protected virtual void OnColumnClick (ColumnClickEventArgs e)
3442 ColumnClickEventHandler eh = (ColumnClickEventHandler)(Events [ColumnClickEvent]);
3448 protected internal virtual void OnDrawColumnHeader(DrawListViewColumnHeaderEventArgs e)
3450 DrawListViewColumnHeaderEventHandler eh = (DrawListViewColumnHeaderEventHandler)(Events[DrawColumnHeaderEvent]);
3455 protected internal virtual void OnDrawItem(DrawListViewItemEventArgs e)
3457 DrawListViewItemEventHandler eh = (DrawListViewItemEventHandler)(Events[DrawItemEvent]);
3462 protected internal virtual void OnDrawSubItem(DrawListViewSubItemEventArgs e)
3464 DrawListViewSubItemEventHandler eh = (DrawListViewSubItemEventHandler)(Events[DrawSubItemEvent]);
3470 protected override void OnEnabledChanged (EventArgs e)
3472 base.OnEnabledChanged (e);
3476 protected override void OnFontChanged (EventArgs e)
3478 base.OnFontChanged (e);
3482 protected override void OnHandleCreated (EventArgs e)
3484 base.OnHandleCreated (e);
3485 CalculateListView (alignment);
3487 if (!virtual_mode) // Sorting is not allowed in virtual mode
3492 protected override void OnHandleDestroyed (EventArgs e)
3494 base.OnHandleDestroyed (e);
3497 protected virtual void OnItemActivate (EventArgs e)
3499 EventHandler eh = (EventHandler)(Events [ItemActivateEvent]);
3504 protected internal virtual void OnItemCheck (ItemCheckEventArgs ice)
3506 ItemCheckEventHandler eh = (ItemCheckEventHandler)(Events [ItemCheckEvent]);
3512 protected internal virtual void OnItemChecked (ItemCheckedEventArgs e)
3514 ItemCheckedEventHandler eh = (ItemCheckedEventHandler)(Events [ItemCheckedEvent]);
3520 protected virtual void OnItemDrag (ItemDragEventArgs e)
3522 ItemDragEventHandler eh = (ItemDragEventHandler)(Events [ItemDragEvent]);
3528 protected virtual void OnItemMouseHover (ListViewItemMouseHoverEventArgs e)
3530 ListViewItemMouseHoverEventHandler eh = (ListViewItemMouseHoverEventHandler)(Events [ItemMouseHoverEvent]);
3535 protected internal virtual void OnItemSelectionChanged (ListViewItemSelectionChangedEventArgs e)
3537 ListViewItemSelectionChangedEventHandler eh =
3538 (ListViewItemSelectionChangedEventHandler) Events [ItemSelectionChangedEvent];
3543 protected override void OnMouseHover (EventArgs e)
3545 base.OnMouseHover (e);
3548 protected override void OnParentChanged (EventArgs e)
3550 base.OnParentChanged (e);
3554 protected virtual void OnSelectedIndexChanged (EventArgs e)
3556 EventHandler eh = (EventHandler)(Events [SelectedIndexChangedEvent]);
3561 protected override void OnSystemColorsChanged (EventArgs e)
3563 base.OnSystemColorsChanged (e);
3567 protected internal virtual void OnCacheVirtualItems (CacheVirtualItemsEventArgs e)
3569 CacheVirtualItemsEventHandler eh = (CacheVirtualItemsEventHandler)Events [CacheVirtualItemsEvent];
3574 protected virtual void OnRetrieveVirtualItem (RetrieveVirtualItemEventArgs e)
3576 RetrieveVirtualItemEventHandler eh = (RetrieveVirtualItemEventHandler)Events [RetrieveVirtualItemEvent];
3581 [EditorBrowsable (EditorBrowsableState.Advanced)]
3582 protected virtual void OnRightToLeftLayoutChanged (EventArgs e)
3584 EventHandler eh = (EventHandler)Events[RightToLeftLayoutChangedEvent];
3589 protected virtual void OnSearchForVirtualItem (SearchForVirtualItemEventArgs e)
3591 SearchForVirtualItemEventHandler eh = (SearchForVirtualItemEventHandler) Events [SearchForVirtualItemEvent];
3596 protected virtual void OnVirtualItemsSelectionRangeChanged (ListViewVirtualItemsSelectionRangeChangedEventArgs e)
3598 ListViewVirtualItemsSelectionRangeChangedEventHandler eh =
3599 (ListViewVirtualItemsSelectionRangeChangedEventHandler) Events [VirtualItemsSelectionRangeChangedEvent];
3605 protected void RealizeProperties ()
3610 protected void UpdateExtendedStyles ()
3615 bool refocusing = false;
3617 protected override void WndProc (ref Message m)
3619 switch ((Msg)m.Msg) {
3620 case Msg.WM_KILLFOCUS:
3621 Control receiver = Control.FromHandle (m.WParam);
3622 if (receiver == item_control) {
3628 case Msg.WM_SETFOCUS:
3638 base.WndProc (ref m);
3640 #endregion // Protected Methods
3642 #region Public Instance Methods
3643 public void ArrangeIcons ()
3645 ArrangeIcons (this.alignment);
3648 public void ArrangeIcons (ListViewAlignment value)
3650 // Icons are arranged only if view is set to LargeIcon or SmallIcon
3651 if (view == View.LargeIcon || view == View.SmallIcon)
3656 public void AutoResizeColumn (int columnIndex, ColumnHeaderAutoResizeStyle headerAutoResize)
3658 if (columnIndex < 0 || columnIndex >= columns.Count)
3659 throw new ArgumentOutOfRangeException ("columnIndex");
3661 columns [columnIndex].AutoResize (headerAutoResize);
3664 public void AutoResizeColumns (ColumnHeaderAutoResizeStyle headerAutoResize)
3667 foreach (ColumnHeader col in columns)
3668 col.AutoResize (headerAutoResize);
3673 public void BeginUpdate ()
3675 // flag to avoid painting
3679 public void Clear ()
3682 items.Clear (); // Redraw (true) called here
3685 public void EndUpdate ()
3687 // flag to avoid painting
3690 // probably, now we need a redraw with recalculations
3694 public void EnsureVisible (int index)
3696 if (index < 0 || index >= items.Count || scrollable == false || updating)
3699 Rectangle view_rect = item_control.ClientRectangle;
3700 Rectangle bounds = new Rectangle (GetItemLocation (index), ItemSize);
3702 if (view_rect.Contains (bounds))
3705 if (View != View.Details) {
3706 if (bounds.Left < 0)
3707 h_scroll.Value += bounds.Left;
3708 else if (bounds.Right > view_rect.Right)
3709 h_scroll.Value += (bounds.Right - view_rect.Right);
3713 v_scroll.Value += bounds.Top;
3714 else if (bounds.Bottom > view_rect.Bottom)
3715 v_scroll.Value += (bounds.Bottom - view_rect.Bottom);
3719 public ListViewItem FindItemWithText (string text)
3721 if (items.Count == 0)
3724 return FindItemWithText (text, true, 0, true);
3727 public ListViewItem FindItemWithText (string text, bool includeSubItemsInSearch, int startIndex)
3729 return FindItemWithText (text, includeSubItemsInSearch, startIndex, true, false);
3732 public ListViewItem FindItemWithText (string text, bool includeSubItemsInSearch, int startIndex, bool isPrefixSearch)
3734 return FindItemWithText (text, includeSubItemsInSearch, startIndex, isPrefixSearch, false);
3738 internal ListViewItem FindItemWithText (string text, bool includeSubItemsInSearch, int startIndex, bool isPrefixSearch, bool roundtrip)
3740 if (startIndex < 0 || startIndex >= items.Count)
3741 throw new ArgumentOutOfRangeException ("startIndex");
3744 throw new ArgumentNullException ("text");
3748 SearchForVirtualItemEventArgs args = new SearchForVirtualItemEventArgs (true,
3749 isPrefixSearch, includeSubItemsInSearch, text, Point.Empty,
3750 SearchDirectionHint.Down, startIndex);
3752 OnSearchForVirtualItem (args);
3753 int idx = args.Index;
3754 if (idx >= 0 && idx < virtual_list_size)
3763 ListViewItem lvi = items [i];
3765 if (isPrefixSearch) { // prefix search
3766 if (CultureInfo.CurrentCulture.CompareInfo.IsPrefix (lvi.Text, text, CompareOptions.IgnoreCase))
3768 } else if (String.Compare (lvi.Text, text, true) == 0) // match
3771 if (i + 1 >= items.Count) {
3779 if (i == startIndex)
3783 // Subitems have a minor priority, so we have to do a second linear search
3784 // Also, we don't need to to a roundtrip search for them by now
3785 if (includeSubItemsInSearch) {
3786 for (i = startIndex; i < items.Count; i++) {
3787 ListViewItem lvi = items [i];
3788 foreach (ListViewItem.ListViewSubItem sub_item in lvi.SubItems)
3789 if (isPrefixSearch) {
3790 if (CultureInfo.CurrentCulture.CompareInfo.IsPrefix (sub_item.Text,
3791 text, CompareOptions.IgnoreCase))
3793 } else if (String.Compare (sub_item.Text, text, true) == 0)
3802 public ListViewItem FindNearestItem (SearchDirectionHint searchDirection, int x, int y)
3804 return FindNearestItem (searchDirection, new Point (x, y));
3807 public ListViewItem FindNearestItem (SearchDirectionHint dir, Point point)
3809 if (dir < SearchDirectionHint.Left || dir > SearchDirectionHint.Down)
3810 throw new ArgumentOutOfRangeException ("searchDirection");
3812 if (view != View.LargeIcon && view != View.SmallIcon)
3813 throw new InvalidOperationException ();
3816 SearchForVirtualItemEventArgs args = new SearchForVirtualItemEventArgs (false,
3817 false, false, String.Empty, point,
3820 OnSearchForVirtualItem (args);
3821 int idx = args.Index;
3822 if (idx >= 0 && idx < virtual_list_size)
3828 ListViewItem item = null;
3829 int min_dist = Int32.MaxValue;
3832 // It looks like .Net does a previous adjustment
3835 case SearchDirectionHint.Up:
3836 point.Y -= item_size.Height;
3838 case SearchDirectionHint.Down:
3839 point.Y += item_size.Height;
3841 case SearchDirectionHint.Left:
3842 point.X -= item_size.Width;
3844 case SearchDirectionHint.Right:
3845 point.X += item_size.Width;
3849 for (int i = 0; i < items.Count; i++) {
3850 Point item_loc = GetItemLocation (i);
3852 if (dir == SearchDirectionHint.Up) {
3853 if (point.Y < item_loc.Y)
3855 } else if (dir == SearchDirectionHint.Down) {
3856 if (point.Y > item_loc.Y)
3858 } else if (dir == SearchDirectionHint.Left) {
3859 if (point.X < item_loc.X)
3861 } else if (dir == SearchDirectionHint.Right) {
3862 if (point.X > item_loc.X)
3866 int x_dist = point.X - item_loc.X;
3867 int y_dist = point.Y - item_loc.Y;
3869 int dist = x_dist * x_dist + y_dist * y_dist;
3870 if (dist < min_dist) {
3880 public ListViewItem GetItemAt (int x, int y)
3882 Size item_size = ItemSize;
3883 for (int i = 0; i < items.Count; i++) {
3884 Point item_location = GetItemLocation (i);
3885 Rectangle item_rect = new Rectangle (item_location, item_size);
3886 if (item_rect.Contains (x, y))
3893 public Rectangle GetItemRect (int index)
3895 return GetItemRect (index, ItemBoundsPortion.Entire);
3898 public Rectangle GetItemRect (int index, ItemBoundsPortion portion)
3900 if (index < 0 || index >= items.Count)
3901 throw new IndexOutOfRangeException ("index");
3903 return items [index].GetBounds (portion);
3907 public ListViewHitTestInfo HitTest (Point point)
3909 return HitTest (point.X, point.Y);
3912 public ListViewHitTestInfo HitTest (int x, int y)
3915 throw new ArgumentOutOfRangeException ("x");
3917 throw new ArgumentOutOfRangeException ("y");
3919 ListViewItem item = GetItemAt (x, y);
3921 return new ListViewHitTestInfo (null, null, ListViewHitTestLocations.None);
3923 ListViewHitTestLocations locations = 0;
3924 if (item.GetBounds (ItemBoundsPortion.Label).Contains (x, y))
3925 locations |= ListViewHitTestLocations.Label;
3926 else if (item.GetBounds (ItemBoundsPortion.Icon).Contains (x, y))
3927 locations |= ListViewHitTestLocations.Image;
3928 else if (item.CheckRectReal.Contains (x, y))
3929 locations |= ListViewHitTestLocations.StateImage;
3931 ListViewItem.ListViewSubItem subitem = null;
3932 if (view == View.Details)
3933 foreach (ListViewItem.ListViewSubItem si in item.SubItems)
3934 if (si.Bounds.Contains (x, y)) {
3939 return new ListViewHitTestInfo (item, subitem, locations);
3942 [EditorBrowsable (EditorBrowsableState.Advanced)]
3943 public void RedrawItems (int startIndex, int endIndex, bool invalidateOnly)
3945 if (startIndex < 0 || startIndex >= items.Count)
3946 throw new ArgumentOutOfRangeException ("startIndex");
3947 if (endIndex < 0 || endIndex >= items.Count)
3948 throw new ArgumentOutOfRangeException ("endIndex");
3949 if (startIndex > endIndex)
3950 throw new ArgumentException ("startIndex");
3955 for (int i = startIndex; i <= endIndex; i++)
3956 items [i].Invalidate ();
3958 if (!invalidateOnly)
3967 throw new InvalidOperationException ();
3973 // we need this overload to reuse the logic for sorting, while allowing
3974 // redrawing to be done by caller or have it done by this method when
3975 // sorting is really performed
3977 // ListViewItemCollection's Add and AddRange methods call this overload
3978 // with redraw set to false, as they take care of redrawing themselves
3979 // (they even want to redraw the listview if no sort is performed, as
3980 // an item was added), while ListView.Sort () only wants to redraw if
3981 // sorting was actually performed
3982 private void Sort (bool redraw)
3984 if (!IsHandleCreated || item_sorter == null) {
3988 items.Sort (item_sorter);
3993 public override string ToString ()
3995 int count = this.Items.Count;
3998 return string.Format ("System.Windows.Forms.ListView, Items.Count: 0");
4000 return string.Format ("System.Windows.Forms.ListView, Items.Count: {0}, Items[0]: {1}", count, this.Items [0].ToString ());
4002 #endregion // Public Instance Methods
4007 internal class HeaderControl : Control {
4010 bool column_resize_active = false;
4011 ColumnHeader resize_column;
4012 ColumnHeader clicked_column;
4013 ColumnHeader drag_column;
4015 int drag_to_index = -1;
4016 ColumnHeader entered_column_header;
4018 public HeaderControl (ListView owner)
4021 this.SetStyle (ControlStyles.DoubleBuffer, true);
4022 MouseDown += new MouseEventHandler (HeaderMouseDown);
4023 MouseMove += new MouseEventHandler (HeaderMouseMove);
4024 MouseUp += new MouseEventHandler (HeaderMouseUp);
4025 MouseLeave += new EventHandler (OnMouseLeave);
4028 internal ColumnHeader EnteredColumnHeader {
4029 get { return entered_column_header; }
4031 if (entered_column_header == value)
4033 if (ThemeEngine.Current.ListViewHasHotHeaderStyle) {
4034 Region region_to_invalidate = new Region ();
4035 region_to_invalidate.MakeEmpty ();
4036 if (entered_column_header != null)
4037 region_to_invalidate.Union (GetColumnHeaderInvalidateArea (entered_column_header));
4038 entered_column_header = value;
4039 if (entered_column_header != null)
4040 region_to_invalidate.Union (GetColumnHeaderInvalidateArea (entered_column_header));
4041 Invalidate (region_to_invalidate);
4042 region_to_invalidate.Dispose ();
4044 entered_column_header = value;
4048 void OnMouseLeave (object sender, EventArgs e)
4050 EnteredColumnHeader = null;
4053 private ColumnHeader ColumnAtX (int x)
4055 Point pt = new Point (x, 0);
4056 ColumnHeader result = null;
4057 foreach (ColumnHeader col in owner.Columns) {
4058 if (col.Rect.Contains (pt)) {
4066 private int GetReorderedIndex (ColumnHeader col)
4068 if (owner.reordered_column_indices == null)
4071 for (int i = 0; i < owner.Columns.Count; i++)
4072 if (owner.reordered_column_indices [i] == col.Index)
4074 throw new Exception ("Column index missing from reordered array");
4077 private void HeaderMouseDown (object sender, MouseEventArgs me)
4079 if (resize_column != null) {
4080 column_resize_active = true;
4085 clicked_column = ColumnAtX (me.X + owner.h_marker);
4087 if (clicked_column != null) {
4089 if (owner.AllowColumnReorder) {
4091 drag_column = (ColumnHeader) (clicked_column as ICloneable).Clone ();
4092 drag_column.Rect = clicked_column.Rect;
4093 drag_to_index = GetReorderedIndex (clicked_column);
4095 clicked_column.Pressed = true;
4096 Invalidate (clicked_column);
4101 void Invalidate (ColumnHeader columnHeader)
4103 Invalidate (GetColumnHeaderInvalidateArea (columnHeader));
4106 Rectangle GetColumnHeaderInvalidateArea (ColumnHeader columnHeader)
4108 Rectangle bounds = columnHeader.Rect;
4109 bounds.X -= owner.h_marker;
4115 column_resize_active = false;
4116 resize_column = null;
4118 Cursor = Cursors.Default;
4121 private void HeaderMouseMove (object sender, MouseEventArgs me)
4123 Point pt = new Point (me.X + owner.h_marker, me.Y);
4125 if (column_resize_active) {
4126 int width = pt.X - resize_column.X;
4130 if (!owner.CanProceedWithResize (resize_column, width)){
4134 resize_column.Width = width;
4138 resize_column = null;
4140 if (clicked_column != null) {
4141 if (owner.AllowColumnReorder) {
4144 r = drag_column.Rect;
4145 r.X = clicked_column.Rect.X + me.X - drag_x;
4146 drag_column.Rect = r;
4148 int x = me.X + owner.h_marker;
4149 ColumnHeader over = ColumnAtX (x);
4151 drag_to_index = owner.Columns.Count;
4152 else if (x < over.X + over.Width / 2)
4153 drag_to_index = GetReorderedIndex (over);
4155 drag_to_index = GetReorderedIndex (over) + 1;
4158 ColumnHeader over = ColumnAtX (me.X + owner.h_marker);
4159 bool pressed = clicked_column.Pressed;
4160 clicked_column.Pressed = over == clicked_column;
4161 if (clicked_column.Pressed ^ pressed)
4162 Invalidate (clicked_column);
4167 for (int i = 0; i < owner.Columns.Count; i++) {
4168 Rectangle zone = owner.Columns [i].Rect;
4169 if (zone.Contains (pt))
4170 EnteredColumnHeader = owner.Columns [i];
4171 zone.X = zone.Right - 5;
4173 if (zone.Contains (pt)) {
4174 if (i < owner.Columns.Count - 1 && owner.Columns [i + 1].Width == 0)
4176 resize_column = owner.Columns [i];
4181 if (resize_column == null)
4182 Cursor = Cursors.Default;
4184 Cursor = Cursors.VSplit;
4187 void HeaderMouseUp (object sender, MouseEventArgs me)
4191 if (column_resize_active) {
4192 int column_idx = resize_column.Index;
4194 owner.RaiseColumnWidthChanged (column_idx);
4198 if (clicked_column != null && clicked_column.Pressed) {
4199 clicked_column.Pressed = false;
4200 Invalidate (clicked_column);
4201 owner.OnColumnClick (new ColumnClickEventArgs (clicked_column.Index));
4204 if (drag_column != null && owner.AllowColumnReorder) {
4206 if (drag_to_index > GetReorderedIndex (clicked_column))
4208 if (owner.GetReorderedColumn (drag_to_index) != clicked_column)
4209 owner.ReorderColumn (clicked_column, drag_to_index, true);
4214 clicked_column = null;
4217 internal override void OnPaintInternal (PaintEventArgs pe)
4222 Theme theme = ThemeEngine.Current;
4223 theme.DrawListViewHeader (pe.Graphics, pe.ClipRectangle, this.owner);
4225 if (drag_column == null)
4229 if (drag_to_index == owner.Columns.Count)
4230 target_x = owner.GetReorderedColumn (drag_to_index - 1).Rect.Right - owner.h_marker;
4232 target_x = owner.GetReorderedColumn (drag_to_index).Rect.X - owner.h_marker;
4233 theme.DrawListViewHeaderDragDetails (pe.Graphics, owner, drag_column, target_x);
4236 protected override void WndProc (ref Message m)
4238 switch ((Msg)m.Msg) {
4239 case Msg.WM_SETFOCUS:
4243 base.WndProc (ref m);
4249 private class ItemComparer : IComparer {
4250 readonly SortOrder sort_order;
4252 public ItemComparer (SortOrder sortOrder)
4254 sort_order = sortOrder;
4257 public int Compare (object x, object y)
4259 ListViewItem item_x = x as ListViewItem;
4260 ListViewItem item_y = y as ListViewItem;
4261 if (sort_order == SortOrder.Ascending)
4262 return String.Compare (item_x.Text, item_y.Text);
4264 return String.Compare (item_y.Text, item_x.Text);
4269 [ListBindable (false)]
4271 public class CheckedIndexCollection : IList, ICollection, IEnumerable
4273 private readonly ListView owner;
4275 #region Public Constructor
4276 public CheckedIndexCollection (ListView owner)
4280 #endregion // Public Constructor
4282 #region Public Properties
4285 get { return owner.CheckedItems.Count; }
4288 public bool IsReadOnly {
4289 get { return true; }
4292 public int this [int index] {
4294 int [] indices = GetIndices ();
4295 if (index < 0 || index >= indices.Length)
4296 throw new ArgumentOutOfRangeException ("index");
4297 return indices [index];
4301 bool ICollection.IsSynchronized {
4302 get { return false; }
4305 object ICollection.SyncRoot {
4306 get { return this; }
4309 bool IList.IsFixedSize {
4310 get { return true; }
4313 object IList.this [int index] {
4314 get { return this [index]; }
4315 set { throw new NotSupportedException ("SetItem operation is not supported."); }
4317 #endregion // Public Properties
4319 #region Public Methods
4320 public bool Contains (int checkedIndex)
4322 int [] indices = GetIndices ();
4323 for (int i = 0; i < indices.Length; i++) {
4324 if (indices [i] == checkedIndex)
4330 public IEnumerator GetEnumerator ()
4332 int [] indices = GetIndices ();
4333 return indices.GetEnumerator ();
4336 void ICollection.CopyTo (Array dest, int index)
4338 int [] indices = GetIndices ();
4339 Array.Copy (indices, 0, dest, index, indices.Length);
4342 int IList.Add (object value)
4344 throw new NotSupportedException ("Add operation is not supported.");
4349 throw new NotSupportedException ("Clear operation is not supported.");
4352 bool IList.Contains (object checkedIndex)
4354 if (!(checkedIndex is int))
4356 return Contains ((int) checkedIndex);
4359 int IList.IndexOf (object checkedIndex)
4361 if (!(checkedIndex is int))
4363 return IndexOf ((int) checkedIndex);
4366 void IList.Insert (int index, object value)
4368 throw new NotSupportedException ("Insert operation is not supported.");
4371 void IList.Remove (object value)
4373 throw new NotSupportedException ("Remove operation is not supported.");
4376 void IList.RemoveAt (int index)
4378 throw new NotSupportedException ("RemoveAt operation is not supported.");
4381 public int IndexOf (int checkedIndex)
4383 int [] indices = GetIndices ();
4384 for (int i = 0; i < indices.Length; i++) {
4385 if (indices [i] == checkedIndex)
4390 #endregion // Public Methods
4392 private int [] GetIndices ()
4394 ArrayList checked_items = owner.CheckedItems.List;
4395 int [] indices = new int [checked_items.Count];
4396 for (int i = 0; i < checked_items.Count; i++) {
4397 ListViewItem item = (ListViewItem) checked_items [i];
4398 indices [i] = item.Index;
4402 } // CheckedIndexCollection
4405 [ListBindable (false)]
4407 public class CheckedListViewItemCollection : IList, ICollection, IEnumerable
4409 private readonly ListView owner;
4410 private ArrayList list;
4412 #region Public Constructor
4413 public CheckedListViewItemCollection (ListView owner)
4416 this.owner.Items.Changed += new CollectionChangedHandler (
4417 ItemsCollection_Changed);
4419 #endregion // Public Constructor
4421 #region Public Properties
4425 if (!owner.CheckBoxes)
4431 public bool IsReadOnly {
4432 get { return true; }
4435 public ListViewItem this [int index] {
4438 if (owner.VirtualMode)
4439 throw new InvalidOperationException ();
4441 ArrayList checked_items = List;
4442 if (index < 0 || index >= checked_items.Count)
4443 throw new ArgumentOutOfRangeException ("index");
4444 return (ListViewItem) checked_items [index];
4449 public virtual ListViewItem this [string key] {
4451 int idx = IndexOfKey (key);
4452 return idx == -1 ? null : (ListViewItem) List [idx];
4457 bool ICollection.IsSynchronized {
4458 get { return false; }
4461 object ICollection.SyncRoot {
4462 get { return this; }
4465 bool IList.IsFixedSize {
4466 get { return true; }
4469 object IList.this [int index] {
4470 get { return this [index]; }
4471 set { throw new NotSupportedException ("SetItem operation is not supported."); }
4473 #endregion // Public Properties
4475 #region Public Methods
4476 public bool Contains (ListViewItem item)
4478 if (!owner.CheckBoxes)
4480 return List.Contains (item);
4484 public virtual bool ContainsKey (string key)
4486 return IndexOfKey (key) != -1;
4490 public void CopyTo (Array dest, int index)
4493 if (owner.VirtualMode)
4494 throw new InvalidOperationException ();
4496 if (!owner.CheckBoxes)
4498 List.CopyTo (dest, index);
4501 public IEnumerator GetEnumerator ()
4504 if (owner.VirtualMode)
4505 throw new InvalidOperationException ();
4507 if (!owner.CheckBoxes)
4508 return (new ListViewItem [0]).GetEnumerator ();
4509 return List.GetEnumerator ();
4512 int IList.Add (object value)
4514 throw new NotSupportedException ("Add operation is not supported.");
4519 throw new NotSupportedException ("Clear operation is not supported.");
4522 bool IList.Contains (object item)
4524 if (!(item is ListViewItem))
4526 return Contains ((ListViewItem) item);
4529 int IList.IndexOf (object item)
4531 if (!(item is ListViewItem))
4533 return IndexOf ((ListViewItem) item);
4536 void IList.Insert (int index, object value)
4538 throw new NotSupportedException ("Insert operation is not supported.");
4541 void IList.Remove (object value)
4543 throw new NotSupportedException ("Remove operation is not supported.");
4546 void IList.RemoveAt (int index)
4548 throw new NotSupportedException ("RemoveAt operation is not supported.");
4551 public int IndexOf (ListViewItem item)
4554 if (owner.VirtualMode)
4555 throw new InvalidOperationException ();
4557 if (!owner.CheckBoxes)
4559 return List.IndexOf (item);
4563 public virtual int IndexOfKey (string key)
4566 if (owner.VirtualMode)
4567 throw new InvalidOperationException ();
4569 if (key == null || key.Length == 0)
4572 ArrayList checked_items = List;
4573 for (int i = 0; i < checked_items.Count; i++) {
4574 ListViewItem item = (ListViewItem) checked_items [i];
4575 if (String.Compare (key, item.Name, true) == 0)
4582 #endregion // Public Methods
4584 internal ArrayList List {
4587 list = new ArrayList ();
4588 foreach (ListViewItem item in owner.Items) {
4597 internal void Reset ()
4599 // force re-population of list
4603 private void ItemsCollection_Changed ()
4607 } // CheckedListViewItemCollection
4610 [ListBindable (false)]
4612 public class ColumnHeaderCollection : IList, ICollection, IEnumerable
4614 internal ArrayList list;
4615 private ListView owner;
4617 #region UIA Framework Events
4620 // We are using Reflection to add/remove internal events.
4621 // Class ListViewProvider uses the events when View is Details.
4623 //Event used to generate UIA StructureChangedEvent
4624 static object UIACollectionChangedEvent = new object ();
4626 internal event CollectionChangeEventHandler UIACollectionChanged {
4629 owner.Events.AddHandler (UIACollectionChangedEvent, value);
4633 owner.Events.RemoveHandler (UIACollectionChangedEvent, value);
4637 internal void OnUIACollectionChangedEvent (CollectionChangeEventArgs args)
4642 CollectionChangeEventHandler eh
4643 = (CollectionChangeEventHandler) owner.Events [UIACollectionChangedEvent];
4649 #endregion UIA Framework Events
4651 #region Public Constructor
4652 public ColumnHeaderCollection (ListView owner)
4654 list = new ArrayList ();
4657 #endregion // Public Constructor
4659 #region Public Properties
4662 get { return list.Count; }
4665 public bool IsReadOnly {
4666 get { return false; }
4669 public virtual ColumnHeader this [int index] {
4671 if (index < 0 || index >= list.Count)
4672 throw new ArgumentOutOfRangeException ("index");
4673 return (ColumnHeader) list [index];
4678 public virtual ColumnHeader this [string key] {
4680 int idx = IndexOfKey (key);
4684 return (ColumnHeader) list [idx];
4689 bool ICollection.IsSynchronized {
4690 get { return true; }
4693 object ICollection.SyncRoot {
4694 get { return this; }
4697 bool IList.IsFixedSize {
4698 get { return list.IsFixedSize; }
4701 object IList.this [int index] {
4702 get { return this [index]; }
4703 set { throw new NotSupportedException ("SetItem operation is not supported."); }
4705 #endregion // Public Properties
4707 #region Public Methods
4708 public virtual int Add (ColumnHeader value)
4710 int idx = list.Add (value);
4711 owner.AddColumn (value, idx, true);
4714 //UIA Framework event: Item Added
4715 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, value));
4722 public virtual ColumnHeader Add (string text, int width, HorizontalAlignment textAlign)
4726 public virtual ColumnHeader Add (string str, int width, HorizontalAlignment textAlign)
4729 ColumnHeader colHeader = new ColumnHeader (this.owner, str, textAlign, width);
4730 this.Add (colHeader);
4735 public virtual ColumnHeader Add (string text)
4737 return Add (String.Empty, text);
4740 public virtual ColumnHeader Add (string text, int width)
4742 return Add (String.Empty, text, width);
4745 public virtual ColumnHeader Add (string key, string text)
4747 ColumnHeader colHeader = new ColumnHeader ();
4748 colHeader.Name = key;
4749 colHeader.Text = text;
4754 public virtual ColumnHeader Add (string key, string text, int width)
4756 return Add (key, text, width, HorizontalAlignment.Left, -1);
4759 public virtual ColumnHeader Add (string key, string text, int width, HorizontalAlignment textAlign, int imageIndex)
4761 ColumnHeader colHeader = new ColumnHeader (key, text, width, textAlign);
4762 colHeader.ImageIndex = imageIndex;
4767 public virtual ColumnHeader Add (string key, string text, int width, HorizontalAlignment textAlign, string imageKey)
4769 ColumnHeader colHeader = new ColumnHeader (key, text, width, textAlign);
4770 colHeader.ImageKey = imageKey;
4776 public virtual void AddRange (ColumnHeader [] values)
4778 foreach (ColumnHeader colHeader in values) {
4779 int idx = list.Add (colHeader);
4780 owner.AddColumn (colHeader, idx, false);
4783 owner.Redraw (true);
4786 public virtual void Clear ()
4788 foreach (ColumnHeader col in list)
4789 col.SetListView (null);
4791 owner.ReorderColumns (new int [0], true);
4794 //UIA Framework event: Items cleared
4795 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Refresh, null));
4800 public bool Contains (ColumnHeader value)
4802 return list.Contains (value);
4806 public virtual bool ContainsKey (string key)
4808 return IndexOfKey (key) != -1;
4812 public IEnumerator GetEnumerator ()
4814 return list.GetEnumerator ();
4817 void ICollection.CopyTo (Array dest, int index)
4819 list.CopyTo (dest, index);
4822 int IList.Add (object value)
4824 if (! (value is ColumnHeader)) {
4825 throw new ArgumentException ("Not of type ColumnHeader", "value");
4828 return this.Add ((ColumnHeader) value);
4831 bool IList.Contains (object value)
4833 if (! (value is ColumnHeader)) {
4834 throw new ArgumentException ("Not of type ColumnHeader", "value");
4837 return this.Contains ((ColumnHeader) value);
4840 int IList.IndexOf (object value)
4842 if (! (value is ColumnHeader)) {
4843 throw new ArgumentException ("Not of type ColumnHeader", "value");
4846 return this.IndexOf ((ColumnHeader) value);
4849 void IList.Insert (int index, object value)
4851 if (! (value is ColumnHeader)) {
4852 throw new ArgumentException ("Not of type ColumnHeader", "value");
4855 this.Insert (index, (ColumnHeader) value);
4858 void IList.Remove (object value)
4860 if (! (value is ColumnHeader)) {
4861 throw new ArgumentException ("Not of type ColumnHeader", "value");
4864 this.Remove ((ColumnHeader) value);
4867 public int IndexOf (ColumnHeader value)
4869 return list.IndexOf (value);
4873 public virtual int IndexOfKey (string key)
4875 if (key == null || key.Length == 0)
4878 for (int i = 0; i < list.Count; i++) {
4879 ColumnHeader col = (ColumnHeader) list [i];
4880 if (String.Compare (key, col.Name, true) == 0)
4888 public void Insert (int index, ColumnHeader value)
4890 // LAMESPEC: MSDOCS say greater than or equal to the value of the Count property
4891 // but it's really only greater.
4892 if (index < 0 || index > list.Count)
4893 throw new ArgumentOutOfRangeException ("index");
4895 list.Insert (index, value);
4896 owner.AddColumn (value, index, true);
4899 //UIA Framework event: Item added
4900 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, value));
4905 public void Insert (int index, string text)
4907 Insert (index, String.Empty, text);
4910 public void Insert (int index, string text, int width)
4912 Insert (index, String.Empty, text, width);
4915 public void Insert (int index, string key, string text)
4917 ColumnHeader colHeader = new ColumnHeader ();
4918 colHeader.Name = key;
4919 colHeader.Text = text;
4920 Insert (index, colHeader);
4923 public void Insert (int index, string key, string text, int width)
4925 ColumnHeader colHeader = new ColumnHeader (key, text, width, HorizontalAlignment.Left);
4926 Insert (index, colHeader);
4929 public void Insert (int index, string key, string text, int width, HorizontalAlignment textAlign, int imageIndex)
4931 ColumnHeader colHeader = new ColumnHeader (key, text, width, textAlign);
4932 colHeader.ImageIndex = imageIndex;
4933 Insert (index, colHeader);
4936 public void Insert (int index, string key, string text, int width, HorizontalAlignment textAlign, string imageKey)
4938 ColumnHeader colHeader = new ColumnHeader (key, text, width, textAlign);
4939 colHeader.ImageKey = imageKey;
4940 Insert (index, colHeader);
4945 public void Insert (int index, string text, int width, HorizontalAlignment textAlign)
4949 public void Insert (int index, string str, int width, HorizontalAlignment textAlign)
4952 ColumnHeader colHeader = new ColumnHeader (this.owner, str, textAlign, width);
4953 this.Insert (index, colHeader);
4956 public virtual void Remove (ColumnHeader column)
4958 if (!Contains (column))
4961 list.Remove (column);
4962 column.SetListView (null);
4964 int rem_display_index = column.InternalDisplayIndex;
4965 int [] display_indices = new int [list.Count];
4966 for (int i = 0; i < display_indices.Length; i++) {
4967 ColumnHeader col = (ColumnHeader) list [i];
4968 int display_index = col.InternalDisplayIndex;
4969 if (display_index < rem_display_index) {
4970 display_indices [i] = display_index;
4972 display_indices [i] = (display_index - 1);
4976 column.InternalDisplayIndex = -1;
4977 owner.ReorderColumns (display_indices, true);
4980 //UIA Framework event: Item Removed
4981 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Remove, column));
4986 public virtual void RemoveByKey (string key)
4988 int idx = IndexOfKey (key);
4994 public virtual void RemoveAt (int index)
4996 if (index < 0 || index >= list.Count)
4997 throw new ArgumentOutOfRangeException ("index");
4999 ColumnHeader col = (ColumnHeader) list [index];
5002 #endregion // Public Methods
5005 } // ColumnHeaderCollection
5008 [ListBindable (false)]
5010 public class ListViewItemCollection : IList, ICollection, IEnumerable
5012 private readonly ArrayList list;
5013 private ListView owner;
5015 private ListViewGroup group;
5018 #region UIA Framework Events
5021 // We are using Reflection to add/remove internal events.
5022 // Class ListViewProvider uses the events.
5024 //Event used to generate UIA StructureChangedEvent
5025 static object UIACollectionChangedEvent = new object ();
5027 internal event CollectionChangeEventHandler UIACollectionChanged {
5030 owner.Events.AddHandler (UIACollectionChangedEvent, value);
5034 owner.Events.RemoveHandler (UIACollectionChangedEvent, value);
5038 internal void OnUIACollectionChangedEvent (CollectionChangeEventArgs args)
5043 CollectionChangeEventHandler eh
5044 = (CollectionChangeEventHandler) owner.Events [UIACollectionChangedEvent];
5050 #endregion UIA Framework Events
5052 // The collection can belong to a ListView (main) or to a ListViewGroup (sub-collection)
5053 // In the later case ListViewItem.ListView never gets modified
5054 private bool is_main_collection = true;
5056 #region Public Constructor
5057 public ListViewItemCollection (ListView owner)
5059 list = new ArrayList (0);
5062 #endregion // Public Constructor
5065 internal ListViewItemCollection (ListView owner, ListViewGroup group) : this (owner)
5068 is_main_collection = false;
5072 #region Public Properties
5077 if (owner != null && owner.VirtualMode)
5078 return owner.VirtualListSize;
5085 public bool IsReadOnly {
5086 get { return false; }
5090 public virtual ListViewItem this [int index] {
5092 public virtual ListViewItem this [int displayIndex] {
5096 int index = displayIndex;
5099 if (index < 0 || index >= Count)
5100 throw new ArgumentOutOfRangeException ("index");
5103 if (owner != null && owner.VirtualMode)
5104 return RetrieveVirtualItemFromOwner (index);
5106 return (ListViewItem) list [index];
5111 int index = displayIndex;
5114 if (index < 0 || index >= Count)
5115 throw new ArgumentOutOfRangeException ("index");
5118 if (owner != null && owner.VirtualMode)
5119 throw new InvalidOperationException ();
5122 if (list.Contains (value))
5123 throw new ArgumentException ("An item cannot be added more than once. To add an item again, you need to clone it.", "value");
5125 if (value.ListView != null && value.ListView != owner)
5126 throw new ArgumentException ("Cannot add or insert the item '" + value.Text + "' in more than one place. You must first remove it from its current location or clone it.", "value");
5128 if (is_main_collection)
5129 value.Owner = owner;
5132 if (value.Group != null)
5133 value.Group.Items.Remove (value);
5135 value.SetGroup (group);
5140 //UIA Framework event: Item Replaced
5141 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Remove, list [index]));
5144 list [index] = value;
5146 CollectionChanged (true);
5149 //UIA Framework event: Item Replaced
5150 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, value));
5157 public virtual ListViewItem this [string key] {
5159 int idx = IndexOfKey (key);
5168 bool ICollection.IsSynchronized {
5169 get { return true; }
5172 object ICollection.SyncRoot {
5173 get { return this; }
5176 bool IList.IsFixedSize {
5177 get { return list.IsFixedSize; }
5180 object IList.this [int index] {
5181 get { return this [index]; }
5184 //UIA Framework event: Item Replaced
5185 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Remove, this [index]));
5188 if (value is ListViewItem)
5189 this [index] = (ListViewItem) value;
5191 this [index] = new ListViewItem (value.ToString ());
5195 //UIA Framework event: Item Replaced
5196 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, value));
5200 #endregion // Public Properties
5202 #region Public Methods
5203 public virtual ListViewItem Add (ListViewItem value)
5206 if (owner != null && owner.VirtualMode)
5207 throw new InvalidOperationException ();
5212 // Item is ignored until it has been added to the ListView
5213 if (is_main_collection || value.ListView != null)
5214 CollectionChanged (true);
5217 //UIA Framework event: Item Added
5218 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, value));
5224 public virtual ListViewItem Add (string text)
5226 ListViewItem item = new ListViewItem (text);
5227 return this.Add (item);
5230 public virtual ListViewItem Add (string text, int imageIndex)
5232 ListViewItem item = new ListViewItem (text, imageIndex);
5233 return this.Add (item);
5237 public virtual ListViewItem Add (string text, string imageKey)
5239 ListViewItem item = new ListViewItem (text, imageKey);
5240 return this.Add (item);
5243 public virtual ListViewItem Add (string key, string text, int imageIndex)
5245 ListViewItem item = new ListViewItem (text, imageIndex);
5247 return this.Add (item);
5250 public virtual ListViewItem Add (string key, string text, string imageKey)
5252 ListViewItem item = new ListViewItem (text, imageKey);
5254 return this.Add (item);
5259 public void AddRange (ListViewItem [] items)
5262 public void AddRange (ListViewItem [] values)
5264 ListViewItem [] items = values;
5267 throw new ArgumentNullException ("Argument cannot be null!", "items");
5269 if (owner != null && owner.VirtualMode)
5270 throw new InvalidOperationException ();
5273 owner.BeginUpdate ();
5275 foreach (ListViewItem item in items) {
5279 //UIA Framework event: Item Added
5280 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, item));
5286 CollectionChanged (true);
5290 public void AddRange (ListViewItemCollection items)
5293 throw new ArgumentNullException ("Argument cannot be null!", "items");
5295 ListViewItem[] itemArray = new ListViewItem[items.Count];
5296 items.CopyTo (itemArray,0);
5297 this.AddRange (itemArray);
5301 public virtual void Clear ()
5304 if (owner != null && owner.VirtualMode)
5305 throw new InvalidOperationException ();
5307 if (is_main_collection && owner != null) {
5308 owner.SetFocusedItem (-1);
5309 owner.h_scroll.Value = owner.v_scroll.Value = 0;
5311 foreach (ListViewItem item in list) {
5312 owner.item_control.CancelEdit (item);
5319 foreach (ListViewItem item in list)
5320 item.SetGroup (null);
5324 CollectionChanged (false);
5327 //UIA Framework event: Items Removed
5328 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Refresh, null));
5333 public bool Contains (ListViewItem item)
5335 return IndexOf (item) != -1;
5339 public virtual bool ContainsKey (string key)
5341 return IndexOfKey (key) != -1;
5345 public void CopyTo (Array dest, int index)
5347 list.CopyTo (dest, index);
5351 public ListViewItem [] Find (string key, bool searchAllSubItems)
5354 return new ListViewItem [0];
5356 List<ListViewItem> temp_list = new List<ListViewItem> ();
5358 for (int i = 0; i < list.Count; i++) {
5359 ListViewItem lvi = (ListViewItem) list [i];
5360 if (String.Compare (key, lvi.Name, true) == 0)
5361 temp_list.Add (lvi);
5364 ListViewItem [] retval = new ListViewItem [temp_list.Count];
5365 temp_list.CopyTo (retval);
5371 public IEnumerator GetEnumerator ()
5374 if (owner != null && owner.VirtualMode)
5375 throw new InvalidOperationException ();
5378 // This enumerator makes a copy of the collection so
5379 // it can be deleted from in a foreach
5380 return new Control.ControlCollection.ControlCollectionEnumerator (list);
5383 int IList.Add (object item)
5389 if (owner != null && owner.VirtualMode)
5390 throw new InvalidOperationException ();
5393 if (item is ListViewItem) {
5394 li = (ListViewItem) item;
5395 if (list.Contains (li))
5396 throw new ArgumentException ("An item cannot be added more than once. To add an item again, you need to clone it.", "item");
5398 if (li.ListView != null && li.ListView != owner)
5399 throw new ArgumentException ("Cannot add or insert the item '" + li.Text + "' in more than one place. You must first remove it from its current location or clone it.", "item");
5402 li = new ListViewItem (item.ToString ());
5407 result = list.Add (li);
5408 CollectionChanged (true);
5411 //UIA Framework event: Item Added
5412 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, li));
5418 bool IList.Contains (object item)
5420 return Contains ((ListViewItem) item);
5423 int IList.IndexOf (object item)
5425 return IndexOf ((ListViewItem) item);
5428 void IList.Insert (int index, object item)
5430 if (item is ListViewItem)
5431 this.Insert (index, (ListViewItem) item);
5433 this.Insert (index, item.ToString ());
5436 //UIA Framework event: Item Added
5437 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, this [index]));
5441 void IList.Remove (object item)
5443 Remove ((ListViewItem) item);
5446 public int IndexOf (ListViewItem item)
5449 if (owner != null && owner.VirtualMode) {
5450 for (int i = 0; i < Count; i++)
5451 if (RetrieveVirtualItemFromOwner (i) == item)
5458 return list.IndexOf (item);
5462 public virtual int IndexOfKey (string key)
5464 if (key == null || key.Length == 0)
5467 for (int i = 0; i < Count; i++) {
5468 ListViewItem lvi = this [i];
5469 if (String.Compare (key, lvi.Name, true) == 0)
5477 public ListViewItem Insert (int index, ListViewItem item)
5479 if (index < 0 || index > list.Count)
5480 throw new ArgumentOutOfRangeException ("index");
5483 if (owner != null && owner.VirtualMode)
5484 throw new InvalidOperationException ();
5487 if (list.Contains (item))
5488 throw new ArgumentException ("An item cannot be added more than once. To add an item again, you need to clone it.", "item");
5490 if (item.ListView != null && item.ListView != owner)
5491 throw new ArgumentException ("Cannot add or insert the item '" + item.Text + "' in more than one place. You must first remove it from its current location or clone it.", "item");
5493 if (is_main_collection)
5497 if (item.Group != null)
5498 item.Group.Items.Remove (item);
5500 item.SetGroup (group);
5504 list.Insert (index, item);
5506 if (is_main_collection || item.ListView != null)
5507 CollectionChanged (true);
5510 //UIA Framework event: Item Added
5511 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Add, item));
5517 public ListViewItem Insert (int index, string text)
5519 return this.Insert (index, new ListViewItem (text));
5522 public ListViewItem Insert (int index, string text, int imageIndex)
5524 return this.Insert (index, new ListViewItem (text, imageIndex));
5528 public ListViewItem Insert (int index, string text, string imageKey)
5530 ListViewItem lvi = new ListViewItem (text, imageKey);
5531 return Insert (index, lvi);
5534 public virtual ListViewItem Insert (int index, string key, string text, int imageIndex)
5536 ListViewItem lvi = new ListViewItem (text, imageIndex);
5538 return Insert (index, lvi);
5541 public virtual ListViewItem Insert (int index, string key, string text, string imageKey)
5543 ListViewItem lvi = new ListViewItem (text, imageKey);
5545 return Insert (index, lvi);
5549 public virtual void Remove (ListViewItem item)
5552 if (owner != null && owner.VirtualMode)
5553 throw new InvalidOperationException ();
5556 int idx = list.IndexOf (item);
5561 public virtual void RemoveAt (int index)
5563 if (index < 0 || index >= Count)
5564 throw new ArgumentOutOfRangeException ("index");
5567 if (owner != null && owner.VirtualMode)
5568 throw new InvalidOperationException ();
5571 ListViewItem item = (ListViewItem) list [index];
5573 bool selection_changed = false;
5574 if (is_main_collection && owner != null) {
5576 int display_index = item.DisplayIndex;
5577 if (item.Focused && display_index + 1 == Count) // Last item
5578 owner.SetFocusedItem (display_index == 0 ? -1 : display_index - 1);
5580 selection_changed = owner.SelectedIndices.Contains (index);
5581 owner.item_control.CancelEdit (item);
5584 list.RemoveAt (index);
5587 if (is_main_collection) {
5589 if (item.Group != null)
5590 item.Group.Items.Remove (item);
5592 item.SetGroup (null);
5597 CollectionChanged (false);
5598 if (selection_changed && owner != null)
5599 owner.OnSelectedIndexChanged (EventArgs.Empty);
5603 //UIA Framework event: Item Removed
5604 OnUIACollectionChangedEvent (new CollectionChangeEventArgs (CollectionChangeAction.Remove, item));
5609 public virtual void RemoveByKey (string key)
5611 int idx = IndexOfKey (key);
5617 #endregion // Public Methods
5619 internal ListView Owner {
5629 internal ListViewGroup Group {
5639 void AddItem (ListViewItem value)
5641 if (list.Contains (value))
5642 throw new ArgumentException ("An item cannot be added more than once. To add an item again, you need to clone it.", "value");
5644 if (value.ListView != null && value.ListView != owner)
5645 throw new ArgumentException ("Cannot add or insert the item '" + value.Text + "' in more than one place. You must first remove it from its current location or clone it.", "value");
5646 if (is_main_collection)
5647 value.Owner = owner;
5650 if (value.Group != null)
5651 value.Group.Items.Remove (value);
5653 value.SetGroup (group);
5661 void CollectionChanged (bool sort)
5663 if (owner != null) {
5668 owner.Redraw (true);
5673 ListViewItem RetrieveVirtualItemFromOwner (int displayIndex)
5675 RetrieveVirtualItemEventArgs args = new RetrieveVirtualItemEventArgs (displayIndex);
5677 owner.OnRetrieveVirtualItem (args);
5678 ListViewItem retval = args.Item;
5679 retval.Owner = owner;
5680 retval.DisplayIndex = displayIndex;
5686 internal event CollectionChangedHandler Changed;
5688 internal void Sort (IComparer comparer)
5690 list.Sort (comparer);
5694 internal void OnChange ()
5696 if (Changed != null)
5699 } // ListViewItemCollection
5702 // In normal mode, the selection information resides in the Items,
5703 // making SelectedIndexCollection.List read-only
5705 // In virtual mode, SelectedIndexCollection directly saves the selection
5706 // information, instead of getting it from Items, making List read-and-write
5708 [ListBindable (false)]
5710 public class SelectedIndexCollection : IList, ICollection, IEnumerable
5712 private readonly ListView owner;
5713 private ArrayList list;
5715 #region Public Constructor
5716 public SelectedIndexCollection (ListView owner)
5719 owner.Items.Changed += new CollectionChangedHandler (ItemsCollection_Changed);
5721 #endregion // Public Constructor
5723 #region Public Properties
5727 if (!owner.IsHandleCreated)
5734 public bool IsReadOnly {
5744 public int this [int index] {
5746 if (!owner.IsHandleCreated || index < 0 || index >= List.Count)
5747 throw new ArgumentOutOfRangeException ("index");
5749 return (int) List [index];
5753 bool ICollection.IsSynchronized {
5754 get { return false; }
5757 object ICollection.SyncRoot {
5758 get { return this; }
5761 bool IList.IsFixedSize {
5771 object IList.this [int index] {
5772 get { return this [index]; }
5773 set { throw new NotSupportedException ("SetItem operation is not supported."); }
5775 #endregion // Public Properties
5777 #region Public Methods
5779 public int Add (int itemIndex)
5781 if (itemIndex < 0 || itemIndex >= owner.Items.Count)
5782 throw new ArgumentOutOfRangeException ("index");
5784 if (owner.virtual_mode && !owner.IsHandleCreated)
5787 owner.Items [itemIndex].Selected = true;
5789 if (!owner.IsHandleCreated)
5803 if (!owner.IsHandleCreated)
5806 int [] indexes = (int []) List.ToArray (typeof (int));
5807 foreach (int index in indexes)
5808 owner.Items [index].Selected = false;
5811 public bool Contains (int selectedIndex)
5813 return IndexOf (selectedIndex) != -1;
5816 public void CopyTo (Array dest, int index)
5818 List.CopyTo (dest, index);
5821 public IEnumerator GetEnumerator ()
5823 return List.GetEnumerator ();
5826 int IList.Add (object value)
5828 throw new NotSupportedException ("Add operation is not supported.");
5836 bool IList.Contains (object selectedIndex)
5838 if (!(selectedIndex is int))
5840 return Contains ((int) selectedIndex);
5843 int IList.IndexOf (object selectedIndex)
5845 if (!(selectedIndex is int))
5847 return IndexOf ((int) selectedIndex);
5850 void IList.Insert (int index, object value)
5852 throw new NotSupportedException ("Insert operation is not supported.");
5855 void IList.Remove (object value)
5857 throw new NotSupportedException ("Remove operation is not supported.");
5860 void IList.RemoveAt (int index)
5862 throw new NotSupportedException ("RemoveAt operation is not supported.");
5865 public int IndexOf (int selectedIndex)
5867 if (!owner.IsHandleCreated)
5870 return List.IndexOf (selectedIndex);
5874 public void Remove (int itemIndex)
5876 if (itemIndex < 0 || itemIndex >= owner.Items.Count)
5877 throw new ArgumentOutOfRangeException ("itemIndex");
5879 owner.Items [itemIndex].Selected = false;
5882 #endregion // Public Methods
5884 internal ArrayList List {
5887 list = new ArrayList ();
5889 if (!owner.VirtualMode)
5891 for (int i = 0; i < owner.Items.Count; i++) {
5892 if (owner.Items [i].Selected)
5900 internal void Reset ()
5902 // force re-population of list
5906 private void ItemsCollection_Changed ()
5912 internal void RemoveIndex (int index)
5914 int idx = List.BinarySearch (index);
5916 List.RemoveAt (idx);
5919 // actually store index in the collection
5920 // also, keep the collection sorted, as .Net does
5921 internal void InsertIndex (int index)
5924 int iMax = List.Count - 1;
5925 while (iMin <= iMax) {
5926 int iMid = (iMin + iMax) / 2;
5927 int current_index = (int) List [iMid];
5929 if (current_index == index)
5930 return; // Already added
5931 if (current_index > index)
5937 List.Insert (iMin, index);
5941 } // SelectedIndexCollection
5944 [ListBindable (false)]
5946 public class SelectedListViewItemCollection : IList, ICollection, IEnumerable
5948 private readonly ListView owner;
5950 #region Public Constructor
5951 public SelectedListViewItemCollection (ListView owner)
5955 #endregion // Public Constructor
5957 #region Public Properties
5961 return owner.SelectedIndices.Count;
5965 public bool IsReadOnly {
5966 get { return true; }
5969 public ListViewItem this [int index] {
5971 if (!owner.IsHandleCreated || index < 0 || index >= Count)
5972 throw new ArgumentOutOfRangeException ("index");
5974 int item_index = owner.SelectedIndices [index];
5975 return owner.Items [item_index];
5980 public virtual ListViewItem this [string key] {
5982 int idx = IndexOfKey (key);
5991 bool ICollection.IsSynchronized {
5992 get { return false; }
5995 object ICollection.SyncRoot {
5996 get { return this; }
5999 bool IList.IsFixedSize {
6000 get { return true; }
6003 object IList.this [int index] {
6004 get { return this [index]; }
6005 set { throw new NotSupportedException ("SetItem operation is not supported."); }
6007 #endregion // Public Properties
6009 #region Public Methods
6010 public void Clear ()
6012 owner.SelectedIndices.Clear ();
6015 public bool Contains (ListViewItem item)
6017 return IndexOf (item) != -1;
6021 public virtual bool ContainsKey (string key)
6023 return IndexOfKey (key) != -1;
6027 public void CopyTo (Array dest, int index)
6029 if (!owner.IsHandleCreated)
6031 if (index > Count) // Throws ArgumentException instead of IOOR exception
6032 throw new ArgumentException ("index");
6034 for (int i = 0; i < Count; i++)
6035 dest.SetValue (this [i], index++);
6038 public IEnumerator GetEnumerator ()
6040 if (!owner.IsHandleCreated)
6041 return (new ListViewItem [0]).GetEnumerator ();
6043 ListViewItem [] items = new ListViewItem [Count];
6044 for (int i = 0; i < Count; i++)
6045 items [i] = this [i];
6047 return items.GetEnumerator ();
6050 int IList.Add (object value)
6052 throw new NotSupportedException ("Add operation is not supported.");
6055 bool IList.Contains (object item)
6057 if (!(item is ListViewItem))
6059 return Contains ((ListViewItem) item);
6062 int IList.IndexOf (object item)
6064 if (!(item is ListViewItem))
6066 return IndexOf ((ListViewItem) item);
6069 void IList.Insert (int index, object value)
6071 throw new NotSupportedException ("Insert operation is not supported.");
6074 void IList.Remove (object value)
6076 throw new NotSupportedException ("Remove operation is not supported.");
6079 void IList.RemoveAt (int index)
6081 throw new NotSupportedException ("RemoveAt operation is not supported.");
6084 public int IndexOf (ListViewItem item)
6086 if (!owner.IsHandleCreated)
6089 for (int i = 0; i < Count; i++)
6090 if (this [i] == item)
6097 public virtual int IndexOfKey (string key)
6099 if (!owner.IsHandleCreated || key == null || key.Length == 0)
6102 for (int i = 0; i < Count; i++) {
6103 ListViewItem item = this [i];
6104 if (String.Compare (item.Name, key, true) == 0)
6111 #endregion // Public Methods
6113 } // SelectedListViewItemCollection
6115 internal delegate void CollectionChangedHandler ();
6117 struct ItemMatrixLocation
6122 public ItemMatrixLocation (int row, int col)
6149 #endregion // Subclasses
6151 protected override void OnResize (EventArgs e)
6156 protected override void OnMouseLeave (EventArgs e)
6158 base.OnMouseLeave (e);
6162 // ColumnReorder event
6164 static object ColumnReorderedEvent = new object ();
6165 public event ColumnReorderedEventHandler ColumnReordered {
6166 add { Events.AddHandler (ColumnReorderedEvent, value); }
6167 remove { Events.RemoveHandler (ColumnReorderedEvent, value); }
6170 protected virtual void OnColumnReordered (ColumnReorderedEventArgs e)
6172 ColumnReorderedEventHandler creh = (ColumnReorderedEventHandler) (Events [ColumnReorderedEvent]);
6179 // ColumnWidthChanged
6181 static object ColumnWidthChangedEvent = new object ();
6182 public event ColumnWidthChangedEventHandler ColumnWidthChanged {
6183 add { Events.AddHandler (ColumnWidthChangedEvent, value); }
6184 remove { Events.RemoveHandler (ColumnWidthChangedEvent, value); }
6187 protected virtual void OnColumnWidthChanged (ColumnWidthChangedEventArgs e)
6189 ColumnWidthChangedEventHandler eh = (ColumnWidthChangedEventHandler) (Events[ColumnWidthChangedEvent]);
6194 void RaiseColumnWidthChanged (int resize_column)
6196 ColumnWidthChangedEventArgs n = new ColumnWidthChangedEventArgs (resize_column);
6198 OnColumnWidthChanged (n);
6202 // ColumnWidthChanging
6204 static object ColumnWidthChangingEvent = new object ();
6205 public event ColumnWidthChangingEventHandler ColumnWidthChanging {
6206 add { Events.AddHandler (ColumnWidthChangingEvent, value); }
6207 remove { Events.RemoveHandler (ColumnWidthChangingEvent, value); }
6210 protected virtual void OnColumnWidthChanging (ColumnWidthChangingEventArgs e)
6212 ColumnWidthChangingEventHandler cwceh = (ColumnWidthChangingEventHandler) (Events[ColumnWidthChangingEvent]);
6218 // 2.0 profile based implementation
6220 bool CanProceedWithResize (ColumnHeader col, int width)
6222 ColumnWidthChangingEventHandler cwceh = (ColumnWidthChangingEventHandler) (Events[ColumnWidthChangingEvent]);
6226 ColumnWidthChangingEventArgs changing = new ColumnWidthChangingEventArgs (col.Index, width);
6227 cwceh (this, changing);
6228 return !changing.Cancel;
6232 // 1.0 profile based implementation
6234 bool CanProceedWithResize (ColumnHeader col, int width)
6239 void RaiseColumnWidthChanged (int resize_column)
6246 #region UIA Framework: Methods, Properties and Events
6248 static object UIALabelEditChangedEvent = new object ();
6249 static object UIAShowGroupsChangedEvent = new object ();
6250 static object UIAMultiSelectChangedEvent = new object ();
6251 static object UIAViewChangedEvent = new object ();
6252 static object UIACheckBoxesChangedEvent = new object ();
6253 static object UIAFocusedItemChangedEvent = new object ();
6255 internal Rectangle UIAHeaderControl {
6256 get { return header_control.Bounds; }
6259 internal int UIAColumns {
6260 get { return cols; }
6263 internal int UIARows {
6264 get { return rows; }
6267 internal ListViewGroup UIADefaultListViewGroup
6269 get { return groups.DefaultGroup; }
6272 internal ScrollBar UIAHScrollBar {
6273 get { return h_scroll; }
6276 internal ScrollBar UIAVScrollBar {
6277 get { return v_scroll; }
6280 internal event EventHandler UIAShowGroupsChanged {
6281 add { Events.AddHandler (UIAShowGroupsChangedEvent, value); }
6282 remove { Events.RemoveHandler (UIAShowGroupsChangedEvent, value); }
6285 internal event EventHandler UIACheckBoxesChanged {
6286 add { Events.AddHandler (UIACheckBoxesChangedEvent, value); }
6287 remove { Events.RemoveHandler (UIACheckBoxesChangedEvent, value); }
6290 internal event EventHandler UIAMultiSelectChanged {
6291 add { Events.AddHandler (UIAMultiSelectChangedEvent, value); }
6292 remove { Events.RemoveHandler (UIAMultiSelectChangedEvent, value); }
6295 internal event EventHandler UIALabelEditChanged {
6296 add { Events.AddHandler (UIALabelEditChangedEvent, value); }
6297 remove { Events.RemoveHandler (UIALabelEditChangedEvent, value); }
6300 internal event EventHandler UIAViewChanged {
6301 add { Events.AddHandler (UIAViewChangedEvent, value); }
6302 remove { Events.RemoveHandler (UIAViewChangedEvent, value); }
6305 internal event EventHandler UIAFocusedItemChanged {
6306 add { Events.AddHandler (UIAFocusedItemChangedEvent, value); }
6307 remove { Events.RemoveHandler (UIAFocusedItemChangedEvent, value); }
6310 internal Rectangle UIAGetHeaderBounds (ListViewGroup group)
6312 return group.HeaderBounds;
6315 private void OnUIACheckBoxesChanged ()
6317 EventHandler eh = (EventHandler) Events [UIACheckBoxesChangedEvent];
6319 eh (this, EventArgs.Empty);
6322 private void OnUIAShowGroupsChanged ()
6324 EventHandler eh = (EventHandler) Events [UIAShowGroupsChangedEvent];
6326 eh (this, EventArgs.Empty);
6329 private void OnUIAMultiSelectChanged ()
6331 EventHandler eh = (EventHandler) Events [UIAMultiSelectChangedEvent];
6333 eh (this, EventArgs.Empty);
6336 private void OnUIALabelEditChanged ()
6338 EventHandler eh = (EventHandler) Events [UIALabelEditChangedEvent];
6340 eh (this, EventArgs.Empty);
6343 private void OnUIAViewChanged ()
6345 EventHandler eh = (EventHandler) Events [UIAViewChangedEvent];
6347 eh (this, EventArgs.Empty);
6350 private void OnUIAFocusedItemChanged ()
6352 EventHandler eh = (EventHandler) Events [UIAFocusedItemChangedEvent];
6354 eh (this, EventArgs.Empty);
6357 #endregion // UIA Framework: Methods, Properties and Events