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.
23 // Peter Bartok pbartok@novell.com
26 using System.ComponentModel;
28 using System.Drawing.Text;
29 using System.Runtime.InteropServices;
31 namespace System.Windows.Forms {
32 [DefaultProperty("Checked")]
33 [DefaultEvent("CheckedChanged")]
35 [ClassInterface (ClassInterfaceType.AutoDispatch)]
37 [DefaultBindingProperty ("Checked")]
38 [ToolboxItem ("System.Windows.Forms.Design.AutoSizeToolboxItem," + Consts.AssemblySystem_Design)]
39 [Designer ("System.Windows.Forms.Design.RadioButtonDesigner, " + Consts.AssemblySystem_Design)]
41 public class RadioButton : ButtonBase {
42 #region Local Variables
43 internal Appearance appearance;
44 internal bool auto_check;
45 internal ContentAlignment radiobutton_alignment;
46 internal CheckState check_state;
47 #endregion // Local Variables
49 #region RadioButtonAccessibleObject Subclass
52 public class RadioButtonAccessibleObject : ButtonBaseAccessibleObject {
54 public class RadioButtonAccessibleObject : ControlAccessibleObject {
56 #region RadioButtonAccessibleObject Local Variables
57 private new RadioButton owner;
58 #endregion // RadioButtonAccessibleObject Local Variables
60 #region RadioButtonAccessibleObject Constructors
61 public RadioButtonAccessibleObject(RadioButton owner) : base(owner) {
64 #endregion // RadioButtonAccessibleObject Constructors
66 #region RadioButtonAccessibleObject Properties
67 public override string DefaultAction {
73 public override AccessibleRole Role {
75 return AccessibleRole.RadioButton;
79 public override AccessibleStates State {
81 AccessibleStates retval;
83 retval = AccessibleStates.Default;
85 if (owner.check_state == CheckState.Checked) {
86 retval |= AccessibleStates.Checked;
90 retval |= AccessibleStates.Focused;
94 retval |= AccessibleStates.Focusable;
100 #endregion // RadioButtonAccessibleObject Properties
102 #region RadioButtonAccessibleObject Methods
103 public override void DoDefaultAction() {
104 owner.PerformClick();
106 #endregion // RadioButtonAccessibleObject Methods
108 #endregion // RadioButtonAccessibleObject Sub-class
110 #region Public Constructors
111 public RadioButton() {
112 appearance = Appearance.Normal;
114 radiobutton_alignment = ContentAlignment.MiddleLeft;
115 TextAlign = ContentAlignment.MiddleLeft;
118 #endregion // Public Constructors
120 #region Private Methods
121 private void UpdateSiblings() {
124 if (auto_check == false) {
128 // Remove tabstop property from and uncheck our radio-button siblings
131 for (int i = 0; i < c.Controls.Count; i++) {
132 if ((this != c.Controls[i]) && (c.Controls[i] is RadioButton)) {
133 if (((RadioButton)(c.Controls[i])).auto_check) {
134 c.Controls[i].TabStop = false;
135 ((RadioButton)(c.Controls[i])).Checked = false;
144 internal override void Draw (PaintEventArgs pe) {
146 // FIXME: This should be called every time something that can affect it
147 // is changed, not every paint. Can only change so many things at a time.
149 // Figure out where our text and image should go
150 Rectangle glyph_rectangle;
151 Rectangle text_rectangle;
152 Rectangle image_rectangle;
154 ThemeEngine.Current.CalculateRadioButtonTextAndImageLayout (this, Point.Empty, out glyph_rectangle, out text_rectangle, out image_rectangle);
157 if (FlatStyle != FlatStyle.System)
158 ThemeEngine.Current.DrawRadioButton (pe.Graphics, this, glyph_rectangle, text_rectangle, image_rectangle, pe.ClipRectangle);
160 ThemeEngine.Current.DrawRadioButton (pe.Graphics, this.ClientRectangle, this);
162 ThemeEngine.Current.DrawRadioButton (pe.Graphics, this.ClientRectangle, this);
167 internal override Size GetPreferredSizeCore (Size proposedSize)
170 return ThemeEngine.Current.CalculateRadioButtonAutoSize (this);
172 return base.GetPreferredSizeCore (proposedSize);
175 #endregion // Private Methods
177 #region Public Instance Properties
178 [DefaultValue(Appearance.Normal)]
180 public Appearance Appearance {
186 if (value != appearance) {
188 EventHandler eh = (EventHandler)(Events [AppearanceChangedEvent]);
190 eh (this, EventArgs.Empty);
192 Parent.PerformLayout (this, "Appearance");
199 public bool AutoCheck {
213 [DefaultValue(ContentAlignment.MiddleLeft)]
214 public ContentAlignment CheckAlign {
216 return radiobutton_alignment;
220 if (value != radiobutton_alignment) {
221 radiobutton_alignment = value;
228 [DefaultValue(false)]
230 [SettingsBindable (true)]
231 [Bindable (true, BindingDirection.OneWay)]
233 public bool Checked {
235 if (check_state != CheckState.Unchecked) {
242 if (value && (check_state != CheckState.Checked)) {
244 check_state = CheckState.Checked;
246 OnCheckedChanged(EventArgs.Empty);
247 } else if (!value && (check_state != CheckState.Unchecked)) {
248 check_state = CheckState.Unchecked;
250 OnCheckedChanged(EventArgs.Empty);
255 [DefaultValue(false)]
256 public new bool TabStop {
257 get { return base.TabStop; }
258 set { base.TabStop = value; }
261 [DefaultValue(ContentAlignment.MiddleLeft)]
263 public override ContentAlignment TextAlign {
264 get { return base.TextAlign; }
265 set { base.TextAlign = value; }
267 #endregion // Public Instance Properties
269 #region Protected Instance Properties
270 protected override CreateParams CreateParams {
272 SetStyle(ControlStyles.AllPaintingInWmPaint, true);
273 SetStyle(ControlStyles.UserPaint, true);
275 return base.CreateParams;
279 protected override Size DefaultSize {
281 return ThemeEngine.Current.RadioButtonDefaultSize;
284 #endregion // Protected Instance Properties
286 #region Public Instance Methods
287 public void PerformClick() {
288 OnClick(EventArgs.Empty);
291 public override string ToString() {
292 return base.ToString() + ", Checked: " + this.Checked;
294 #endregion // Public Instance Methods
296 #region Protected Instance Methods
297 protected override AccessibleObject CreateAccessibilityInstance() {
300 ao = base.CreateAccessibilityInstance ();
301 ao.role = AccessibleRole.RadioButton;
306 protected virtual void OnCheckedChanged(EventArgs e) {
307 EventHandler eh = (EventHandler)(Events [CheckedChangedEvent]);
312 protected override void OnClick(EventArgs e) {
324 protected override void OnEnter(EventArgs e) {
328 protected override void OnHandleCreated(EventArgs e) {
329 base.OnHandleCreated(e);
332 protected override void OnMouseUp(MouseEventArgs mevent) {
333 base.OnMouseUp(mevent);
336 protected override bool ProcessMnemonic(char charCode) {
337 if (IsMnemonic(charCode, Text) == true) {
343 return base.ProcessMnemonic(charCode);
345 #endregion // Protected Instance Methods
348 static object AppearanceChangedEvent = new object ();
349 static object CheckedChangedEvent = new object ();
351 public event EventHandler AppearanceChanged {
352 add { Events.AddHandler (AppearanceChangedEvent, value); }
353 remove { Events.RemoveHandler (AppearanceChangedEvent, value); }
356 public event EventHandler CheckedChanged {
357 add { Events.AddHandler (CheckedChangedEvent, value); }
358 remove { Events.RemoveHandler (CheckedChangedEvent, value); }
362 [EditorBrowsable (EditorBrowsableState.Never)]
363 public new event EventHandler DoubleClick {
364 add { base.DoubleClick += value; }
365 remove { base.DoubleClick -= value; }
370 [EditorBrowsable (EditorBrowsableState.Never)]
371 public new event MouseEventHandler MouseDoubleClick {
372 add { base.MouseDoubleClick += value; }
373 remove { base.MouseDoubleClick -= value; }