2008-04-21 Jonathan Pobst <monkey@jpobst.com>

[mono.git] / mcs / class / Managed.Windows.Forms / System.Windows.Forms / DataGridViewComboBoxCell.cs

diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewComboBoxCell.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewComboBoxCell.cs
index c7a7b04af7207fe2fd85ffa87a7ff1d1bcc02212..f4b30d637e1f859f819411361283cf570404f02d 100644 (file)
--- a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewComboBoxCell.cs
+++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridViewComboBoxCell.cs
@@ -46,7 +46,7 @@ namespace System.Windows.Forms {
                private bool sorted;
                private string valueMember;
 
-               private ComboBox editingControl;
+               private DataGridViewComboBoxEditingControl editingControl;
 
                public DataGridViewComboBoxCell () : base() {
                        autoComplete = true;
@@ -183,11 +183,28 @@ namespace System.Windows.Forms {
                }
 
                public override void InitializeEditingControl (int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle) {
-                       if (editingControl == null) {
-                               editingControl = new ComboBox ();
-                               editingControl.Text = initialFormattedValue == null ? string.Empty : initialFormattedValue.ToString ();
-                       }
-                       this.DataGridView.EditingControlInternal = editingControl;                      
+                       base.InitializeEditingControl (rowIndex, initialFormattedValue, dataGridViewCellStyle);
+                       
+                       editingControl = DataGridView.EditingControl as DataGridViewComboBoxEditingControl;
+                       
+                       if (editingControl == null)
+                               return;
+                       
+                       // A simple way to check if the control has
+                       // been initialized already.
+                       if (editingControl.Items.Count > 0)
+                               return;
+                       
+                       editingControl.DropDownStyle = ComboBoxStyle.DropDownList;
+                       editingControl.Text = initialFormattedValue == null ? string.Empty : initialFormattedValue.ToString ();
+                       editingControl.SelectedIndexChanged += new EventHandler (editingControl_SelectedIndexChanged);
+                       editingControl.Items.Clear ();
+                       editingControl.Items.AddRange (this.Items);             
+               }
+
+               void editingControl_SelectedIndexChanged (object sender, EventArgs e)
+               {
+                       Value = editingControl.SelectedItem;
                }
 
                public override bool KeyEntersEditMode (KeyEventArgs e) {
@@ -206,8 +223,13 @@ namespace System.Windows.Forms {
                        throw new NotImplementedException();
                }
 
-               protected override Rectangle GetErrorIconBounds (Graphics graphics, DataGridViewCellStyle cellStyle, int rowIndex) {
-                       throw new NotImplementedException();
+               protected override Rectangle GetErrorIconBounds (Graphics graphics, DataGridViewCellStyle cellStyle, int rowIndex)
+               {
+                       if (DataGridView == null || string.IsNullOrEmpty (ErrorText))
+                               return Rectangle.Empty;
+
+                       Size error_icon = new Size (12, 11);
+                       return new Rectangle (new Point (Size.Width - error_icon.Width - 23, (Size.Height - error_icon.Height) / 2), error_icon);
                }
 
                protected override object GetFormattedValue (object value, int rowIndex, ref DataGridViewCellStyle cellStyle, TypeConverter valueTypeConverter, TypeConverter formattedValueTypeConverter, DataGridViewDataErrorContexts context) {
@@ -244,11 +266,48 @@ namespace System.Windows.Forms {
                }
 
                protected override void OnMouseMove (DataGridViewCellMouseEventArgs e) {
+                       //Console.WriteLine ("MouseMove (Location: {0}", e.Location);
                        base.OnMouseMove (e);
                }
 
-               protected override void Paint (Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementeState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts) {
-                       throw new NotImplementedException();
+               protected override void Paint (Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, 
+                               int rowIndex, DataGridViewElementStates elementState, object value, 
+                               object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, 
+                               DataGridViewPaintParts paintParts) {
+                       
+                       
+                       Rectangle button_area, text_area;
+                       text_area = cellBounds;
+                       button_area = CalculateButtonArea (cellBounds);
+                       
+                       graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (cellStyle.BackColor), cellBounds);
+                       ThemeEngine.Current.CPDrawComboButton (graphics, button_area, ButtonState.Normal);
+                       
+                       string text;
+                       if (formattedValue == null)
+                               text = string.Empty;
+                       else {
+                               text = formattedValue.ToString ();
+                       }
+                       
+                       graphics.DrawString (text, cellStyle.Font, ThemeEngine.Current.ResPool.GetSolidBrush (cellStyle.ForeColor), text_area, StringFormat.GenericTypographic);
+               }
+
+               private Rectangle CalculateButtonArea (Rectangle cellBounds)
+               {
+                       Rectangle button_area, text_area;
+                       int border = ThemeEngine.Current.Border3DSize.Width;
+                       const int button_width = 16;
+
+                       text_area = cellBounds;
+
+                       button_area = cellBounds;
+                       button_area.X = text_area.Right - button_width - border;
+                       button_area.Y = text_area.Y + border;
+                       button_area.Width = button_width;
+                       button_area.Height = text_area.Height - 2 * border;
+                       
+                       return button_area;
                }
 
                [ListBindable (false)]
@@ -308,13 +367,14 @@ namespace System.Windows.Forms {
                                return list.Contains(value);
                        }
 
-                       void ICollection.CopyTo (Array destination, int arrayIndex)
+                       void ICollection.CopyTo (Array destination, int index)
                        {
-                               CopyTo ((object[])destination, arrayIndex);
+                               CopyTo ((object[]) destination, index);
                        }
 
-                       public void CopyTo (object[] destination, int arrayIndex) {
-                               list.CopyTo(destination, arrayIndex);
+                       public void CopyTo (object[] destination, int arrayIndex)
+                       {
+                               list.CopyTo (destination, arrayIndex);
                        }
 
                        public IEnumerator GetEnumerator () {
@@ -338,9 +398,9 @@ namespace System.Windows.Forms {
                        }
 
 
-                       int IList.Add (object value)
+                       int IList.Add (object item)
                        {
-                               return Add (value);
+                               return Add (item);
                        }
 
                }