// Dennis Hayes dennish@raytek.com
// Peter Bartok pbartok@novell.com
//
-//
-// $Revision: 1.2 $
-// $Modtime: $
-// $Log: CheckBox.cs,v $
-// Revision 1.2 2004/08/30 15:44:20 pbartok
-// - Updated to fix broken build. Not complete yet.
-//
-// Revision 1.1 2004/07/09 05:21:25 pbartok
-// - Initial check-in
-//
-//
-// NOT COMPLETE
+// COMPLETE
using System;
+using System.ComponentModel;
using System.Drawing;
namespace System.Windows.Forms {
+ [DefaultProperty("Checked")]
+ [DefaultEvent("CheckedChanged")]
public class CheckBox : ButtonBase {
- private Appearance appearance;
- private bool auto_check;
- private ContentAlignment check_alignment;
- private ContentAlignment text_alignment;
- private CheckState check_state;
- private bool three_state;
+ #region Local Variables
+ internal Appearance appearance;
+ internal bool auto_check;
+ internal ContentAlignment check_alignment;
+ internal CheckState check_state;
+ internal bool three_state;
+ #endregion // Local Variables
+
#region Public Constructors
public CheckBox() {
appearance = Appearance.Normal;
auto_check = true;
check_alignment = ContentAlignment.MiddleLeft;
+ text_alignment = ContentAlignment.MiddleLeft;
}
#endregion // Public Constructors
+ #region Internal Methods
+ internal override void Draw (PaintEventArgs pe) {
+ if (redraw) {
+ ThemeEngine.Current.DrawCheckBox (this.DeviceContext, this.ClientRectangle, this);
+ redraw = false;
+ }
+ }
+
+ internal override void HaveDoubleClick() {
+ if (DoubleClick != null) DoubleClick(this, EventArgs.Empty);
+ }
+ #endregion // Internal Methods
+
#region Public Instance Properties
+ [DefaultValue(Appearance.Normal)]
+ [Localizable(true)]
public Appearance Appearance {
get {
return appearance;
set {
if (value != appearance) {
- value = appearance;
+ appearance = value;
if (AppearanceChanged != null) {
AppearanceChanged(this, EventArgs.Empty);
}
+ Redraw();
}
}
}
+ [DefaultValue(true)]
public bool AutoCheck {
get {
return auto_check;
}
}
+ [Bindable(true)]
+ [Localizable(true)]
+ [DefaultValue(ContentAlignment.MiddleLeft)]
public ContentAlignment CheckAlign {
get {
return check_alignment;
}
}
+ [Bindable(true)]
+ [RefreshProperties(RefreshProperties.All)]
+ [DefaultValue(false)]
public bool Checked {
get {
if (check_state != CheckState.Unchecked) {
}
}
+ [DefaultValue(CheckState.Unchecked)]
+ [RefreshProperties(RefreshProperties.All)]
+ [Bindable(true)]
public CheckState CheckState {
get {
return check_state;
}
}
+ [DefaultValue(ContentAlignment.MiddleLeft)]
+ [Localizable(true)]
public override ContentAlignment TextAlign {
get {
return text_alignment;
}
+ [DefaultValue(false)]
public bool ThreeState {
get {
return three_state;
#region Public Instance Methods
public override string ToString() {
- if (CheckState == CheckState.Unchecked) {
- return "CheckBox (unchecked)";
- } else if (CheckState == CheckState.Checked) {
- return "CheckBox (checked)";
- } else {
- return "CheckBox (state indeterminate)";
- }
+ return base.ToString() + ", CheckState: " + (int)check_state;
}
#endregion // Public Instance Methods
}
protected virtual void OnCheckedChanged(EventArgs e) {
-Console.WriteLine("Checked changed");
if (CheckedChanged != null) {
CheckedChanged(this, e);
}
}
protected virtual void OnCheckStateChanged(EventArgs e) {
-Console.WriteLine("CheckState changed");
if (CheckStateChanged != null) {
CheckStateChanged(this, e);
}
}
protected override void OnClick(EventArgs e) {
-Console.WriteLine("Got click");
- base.OnClick (e);
- }
-
- protected override void OnHandleCreated(EventArgs e) {
- base.OnHandleCreated (e);
- }
-
- protected override void OnMouseUp(MouseEventArgs e) {
- base.OnMouseUp (e);
- }
-
- protected override bool ProcessMnemonic(char charCode) {
- return base.ProcessMnemonic (charCode);
- }
-
- #endregion // Protected Instance Methods
-
- #region Events
- public event EventHandler AppearanceChanged;
- public event EventHandler CheckedChanged;
- public event EventHandler CheckStateChanged;
- #endregion // Events
- }
-}
-#if not
- public class CheckBox : ButtonBase {
-
- // private fields
- Appearance appearance;
- bool autoCheck;
- ContentAlignment checkAlign;
- bool _checked;
- CheckState checkState;
- bool threeState;
- ContentAlignment textAlign;
- Rectangle textRect;
- Rectangle checkRect;
- StringFormat textFormat;
- int checkMarkSize=13; // Keep it configurable for accessability
- Graphics canvasDC;
- Bitmap canvasBmp;
-
- // --- Constructor ---
- public CheckBox() : base()
- {
-
- appearance = Appearance.Normal;
- autoCheck = true;
- checkAlign = ContentAlignment.MiddleLeft;
- _checked = false;
- checkState = CheckState.Unchecked;
- threeState = false;
-
- canvasBmp = new Bitmap(ClientRectangle.Width, ClientRectangle.Height);
- canvasDC = Graphics.FromImage(canvasBmp);
-
- /* Set defaults for drawing text... */
- textAlign = ContentAlignment.MiddleLeft;
- textFormat = new StringFormat();
- textFormat.Alignment=StringAlignment.Near;
- textFormat.LineAlignment=StringAlignment.Center;
- textRect = ClientRectangle;
- textRect.X+=checkMarkSize;
- textRect.Width-=checkMarkSize;
-
- /* ... and for drawing our checkbox */
- checkRect.X=ClientRectangle.Left;
- checkRect.Y=(ClientRectangle.Bottom-ClientRectangle.Top)/2-checkMarkSize/2;
- checkRect.Width=checkMarkSize;
- checkRect.Height=checkMarkSize;
-
- SizeChanged+=new System.EventHandler(CheckboxSizeChanged);
- GotFocus+=new System.EventHandler(CheckboxUpdate);
- LostFocus+=new System.EventHandler(CheckboxUpdate);
- TextChanged+=new System.EventHandler(CheckboxUpdate);
-
- SubClassWndProc_ = true;
- SetStyle (ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint, true);
- callWinControlProcMask &= ~(CallWinControlProcMask.MOUSE_MESSAGES | CallWinControlProcMask.KEYBOARD_MESSAGES);
- }
-
- // --- CheckBox Properties ---
-
- public CheckState CheckState {
- get { return checkState; }
- set {
- if( checkState != value) {
-
- checkState = value;
- bool oldChecked = _checked;
-
- if( checkState == CheckState.Unchecked) {
- _checked = false;
- }
- else {
- _checked = true;
- }
-
- if( oldChecked != _checked) {
- OnCheckedChanged(new EventArgs());
- }
-
- OnCheckStateChanged(new EventArgs());
- }
- }
- }
-
- [MonoTODO]
- protected override CreateParams CreateParams {
- get {
- CreateParams createParams = base.CreateParams;
-
- createParams.ClassName = "BUTTON";
-
- createParams.Style = (int) (
- (int)WindowStyles.WS_CHILD |
- (int)WindowStyles.WS_VISIBLE |
- (int)ButtonStyles.BS_CHECKBOX |
- (int)ButtonStyles.BS_NOTIFY |
- (int)WindowStyles.WS_CLIPSIBLINGS |
- (int)WindowStyles.WS_CLIPCHILDREN |
- (int)WindowStyles.WS_TABSTOP |
- (int)SS_Static_Control_Types.SS_LEFT );
-
- if (autoCheck) {
- createParams.Style |= (int)ButtonStyles.BS_AUTOCHECKBOX;
- }
-
- /* We need this, we draw ourselves */
- createParams.Style |= (int) ButtonStyles.BS_OWNERDRAW;
-
- return createParams;
- }
- }
-
- [MonoTODO]
- protected override Size DefaultSize {
- get { return new Size(100,checkMarkSize); }
- }
-
- [MonoTODO]
- public override ContentAlignment TextAlign {
- get {
- return textAlign;
- }
- set {
- textAlign = value;
- UpdateCheckbox();
- }
- }
-
- public bool ThreeState {
- get {
- return threeState;
- }
-
- set {
- threeState = value;
- }
- }
-
- // --- CheckBox methods ---
-
- protected override AccessibleObject CreateAccessibilityInstance()
- {
- throw new NotImplementedException ();
- }
-
-
- // [event methods]
- [MonoTODO]
- protected virtual void OnAppearanceChanged(EventArgs e)
- {
- if (AppearanceChanged != null) {
- AppearanceChanged(this, e);
- }
- }
-
- [MonoTODO]
- protected virtual void OnCheckedChanged(EventArgs e)
- {
- //FIXME:
- if(CheckedChanged != null) {
- CheckedChanged( this, e);
- }
- }
-
- [MonoTODO]
- protected virtual void OnCheckStateChanged(EventArgs e)
- {
- //FIXME:
- if(CheckStateChanged != null) {
- CheckStateChanged( this, e);
- }
- }
-
- [MonoTODO]
- protected override void OnClick(EventArgs e)
- {
- CheckState = (CheckState)Win32.SendMessage(Handle, (int)ButtonMessages.BM_GETCHECK, 0, 0);
- base.OnClick(e);
- }
-
- [MonoTODO]
- protected override void OnHandleCreated(EventArgs e)
- {
- //FIXME:
- base.OnHandleCreated(e);
- Win32.SendMessage(Handle, (int)ButtonMessages.BM_SETCHECK, (int)checkState, 0);
- }
-
-// protected override void OnMouseDown (MouseEventArgs e)
-// {
-// base.OnMouseDown (e);
-// }
-
- [MonoTODO]
- protected override void OnMouseUp(MouseEventArgs mevent)
- {
- if (ThreeState) {
- switch (CheckState) {
+ if (auto_check) {
+ switch(check_state) {
case CheckState.Unchecked: {
- CheckState = CheckState.Checked;
+ if (three_state) {
+ CheckState = CheckState.Indeterminate;
+ } else {
+ CheckState = CheckState.Checked;
+ }
break;
}
case CheckState.Indeterminate: {
- CheckState = CheckState.Unchecked;
+ CheckState = CheckState.Checked;
break;
}
case CheckState.Checked: {
- CheckState = CheckState.Indeterminate;
- break;
- }
- }
- } else {
- Checked = Checked ? false : true;
- }
- CheckboxRedraw();
- Invalidate();
- base.OnMouseUp(mevent);
- }
- // end of [event methods]
-
-
- [MonoTODO]
- protected override bool ProcessMnemonic(char charCode)
- {
- //FIXME:
- return base.ProcessMnemonic(charCode);
- }
-
- [MonoTODO]
- //FIXME: do a better tostring
- public override string ToString()
- {
- if (Checked) {
- return "CheckBox" + " Checked";
- } else {
- return "CheckBox" + " Unchecked";
- }
- }
-
- internal override void ButtonPaint (PaintEventArgs e)
- {
- if (canvasBmp!=null) {
- e.Graphics.DrawImage(canvasBmp, e.ClipRectangle, e.ClipRectangle, GraphicsUnit.Pixel);
- }
- }
-
- /// --- CheckBox events ---
- public event EventHandler AppearanceChanged;
- public event EventHandler CheckedChanged;
- public event EventHandler CheckStateChanged;
-
- /// --- public class CheckBox.CheckBoxAccessibleObject : AccessibleObject ---
- /// the class is only used for .NET framework
- ///
- public class CheckBoxAccessibleObject : AccessibleObject {
- }
-
- private void UpdateCheckbox() {
- /* Calculate the position of text and checkbox rectangle */
- if (appearance!=Appearance.Button) {
- switch(checkAlign) {
- case ContentAlignment.BottomCenter: {
- if (ClientRectangle.Height<checkMarkSize*2) {
- ClientSize=new Size(ClientRectangle.Width, checkMarkSize*2);
- }
- checkRect.X=(ClientRectangle.Right-ClientRectangle.Left)/2-checkMarkSize/2;
- checkRect.Y=ClientRectangle.Bottom-checkMarkSize;
- textRect.X=ClientRectangle.X;
- textRect.Width=ClientRectangle.Width;
- break;
- }
-
- case ContentAlignment.BottomLeft: {
- checkRect.X=ClientRectangle.Left;
- checkRect.Y=ClientRectangle.Bottom-checkMarkSize;
- textRect.X=ClientRectangle.X+checkMarkSize;
- textRect.Width=ClientRectangle.Width-checkMarkSize;
- break;
- }
-
- case ContentAlignment.BottomRight: {
- checkRect.X=ClientRectangle.Right-checkMarkSize;
- checkRect.Y=ClientRectangle.Bottom-checkMarkSize;
- textRect.X=ClientRectangle.X;
- textRect.Width=ClientRectangle.Width-checkMarkSize;
- break;
- }
-
- case ContentAlignment.MiddleCenter: {
- checkRect.X=(ClientRectangle.Right-ClientRectangle.Left)/2-checkMarkSize/2;
- checkRect.Y=(ClientRectangle.Bottom-ClientRectangle.Top)/2-checkMarkSize/2;
- textRect.X=ClientRectangle.X;
- textRect.Width=ClientRectangle.Width;
- break;
- }
-
- default:
- case ContentAlignment.MiddleLeft: {
- checkRect.X=ClientRectangle.Left;
- checkRect.Y=(ClientRectangle.Bottom-ClientRectangle.Top)/2-checkMarkSize/2;
- textRect.X=ClientRectangle.X+checkMarkSize;
- textRect.Width=ClientRectangle.Width-checkMarkSize;
- break;
- }
-
- case ContentAlignment.MiddleRight: {
- checkRect.X=ClientRectangle.Right-checkMarkSize;
- checkRect.Y=(ClientRectangle.Bottom-ClientRectangle.Top)/2-checkMarkSize/2;
- textRect.X=ClientRectangle.X;
- textRect.Width=ClientRectangle.Width-checkMarkSize;
- break;
- }
-
- case ContentAlignment.TopCenter: {
- if (ClientRectangle.Height<checkMarkSize*2) {
- ClientSize=new Size(ClientRectangle.Width, checkMarkSize*2);
- }
- checkRect.X=(ClientRectangle.Right-ClientRectangle.Left)/2-checkMarkSize/2;
- checkRect.Y=ClientRectangle.Top;
- textRect.X=ClientRectangle.X;
- textRect.Y=checkMarkSize;
- textRect.Width=ClientRectangle.Width;
- textRect.Height=ClientRectangle.Height-checkMarkSize;
- break;
- }
-
- case ContentAlignment.TopLeft: {
- checkRect.X=ClientRectangle.Left;
- checkRect.Y=ClientRectangle.Top;
- textRect.X=ClientRectangle.X+checkMarkSize;
- textRect.Width=ClientRectangle.Width-checkMarkSize;
- break;
- }
-
- case ContentAlignment.TopRight: {
- checkRect.X=ClientRectangle.Right-checkMarkSize;
- checkRect.Y=ClientRectangle.Top;
- textRect.X=ClientRectangle.X;
- textRect.Width=ClientRectangle.Width-checkMarkSize;
+ CheckState = CheckState.Unchecked;
break;
}
}
- } else {
- textRect.X=ClientRectangle.X;
- textRect.Width=ClientRectangle.Width;
- }
-
- /* Set the horizontal alignment of our text */
- switch(textAlign) {
- case ContentAlignment.BottomLeft:
- case ContentAlignment.MiddleLeft:
- case ContentAlignment.TopLeft: {
- textFormat.Alignment=StringAlignment.Near;
- break;
- }
-
- case ContentAlignment.BottomCenter:
- case ContentAlignment.MiddleCenter:
- case ContentAlignment.TopCenter: {
- textFormat.Alignment=StringAlignment.Center;
- break;
- }
-
- case ContentAlignment.BottomRight:
- case ContentAlignment.MiddleRight:
- case ContentAlignment.TopRight: {
- textFormat.Alignment=StringAlignment.Far;
- break;
- }
- }
-
- /* Set the vertical alignment of our text */
- switch(textAlign) {
- case ContentAlignment.TopLeft:
- case ContentAlignment.TopCenter:
- case ContentAlignment.TopRight: {
- textFormat.LineAlignment=StringAlignment.Near;
- break;
- }
-
- case ContentAlignment.BottomLeft:
- case ContentAlignment.BottomCenter:
- case ContentAlignment.BottomRight: {
- textFormat.LineAlignment=StringAlignment.Far;
- break;
- }
-
- case ContentAlignment.MiddleLeft:
- case ContentAlignment.MiddleCenter:
- case ContentAlignment.MiddleRight: {
- textFormat.LineAlignment=StringAlignment.Center;
- break;
- }
}
- CheckboxRedraw();
- Invalidate();
}
- private void CheckboxRedraw() {
- SolidBrush sb;
-
- /* Build the image representing the control */
-
- if (canvasDC!=null) {
- canvasDC.Dispose();
- }
- if (canvasBmp!=null) {
- canvasBmp.Dispose();
- }
-
- if (ClientRectangle.Width<1 || ClientRectangle.Height<1) {
- return;
- }
- canvasBmp = new Bitmap(ClientRectangle.Width, ClientRectangle.Height);
- canvasDC = Graphics.FromImage(canvasBmp);
-
- sb=new SolidBrush(BackColor);
- canvasDC.FillRectangle(sb, ClientRectangle);
- sb.Dispose();
-
- ButtonState state = ButtonState.Normal;
- if (FlatStyle == FlatStyle.Flat) {
- state |= ButtonState.Flat;
- }
-
- if (Checked) {
- state |= ButtonState.Checked;
- }
-
- if (ThreeState && (CheckState == CheckState.Indeterminate)) {
- state |= ButtonState.Checked;
- state |= ButtonState.Pushed;
- }
-
- if (appearance!=Appearance.Button) {
- ControlPaint.DrawCheckBox(canvasDC, checkRect, state);
- } else {
- ControlPaint.DrawButton(canvasDC, textRect, state);
- }
-
- /* Place the text; to be compatible with Windows place it after the checkbox has been drawn */
- sb=new SolidBrush(base.foreColor);
- canvasDC.DrawString(Text, Font, sb, textRect, textFormat);
- sb.Dispose();
-
- if (Focused) {
- ControlPaint.DrawFocusRectangle(canvasDC, textRect);
- }
+ protected override void OnHandleCreated(EventArgs e) {
+ base.OnHandleCreated (e);
}
- private void CheckboxUpdate(object sender, System.EventArgs e) {
- /* Force recalculation of text & checkbox rectangles */
- UpdateCheckbox();
+ protected override void OnMouseUp(MouseEventArgs e) {
+ base.OnMouseUp (e);
}
- private void CheckboxSizeChanged(object sender, System.EventArgs e)
- {
- /* Force recalculation of text & checkbox rectangles */
- textRect.Y=ClientRectangle.Y;
- textRect.Height=ClientRectangle.Height;
- UpdateCheckbox();
+ protected override bool ProcessMnemonic(char charCode) {
+ return base.ProcessMnemonic (charCode);
}
- }
+ #endregion // Protected Instance Methods
+ #region Events
+ public event EventHandler AppearanceChanged;
+ public event EventHandler CheckedChanged;
+ public event EventHandler CheckStateChanged;
+ #endregion // Events
+ #region Events
+ [Browsable(false)]
+ [EditorBrowsable (EditorBrowsableState.Never)]
+ public event EventHandler DoubleClick;
+ #endregion // Events
+ }
}
-#endif
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