mcs/class/Managed.Windows.Forms/System.Windows.Forms/Button.cs

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   7 // permit persons to whom the Software is furnished to do so, subject to
   8 // the following conditions:
   9 //
  10 // The above copyright notice and this permission notice shall be
  11 // included in all copies or substantial portions of the Software.
  12 //
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  14 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  15 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  16 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  17 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  18 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  19 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20 //
  21 // Copyright (c) 2004-2005 Novell, Inc.
  22 //
  23 // Authors:
  24 //      Peter Bartok    pbartok@novell.com
  25 //
  26
  27 using System.ComponentModel;
  28 using System.Drawing;
  29 using System.Drawing.Text;
  30 using System.Runtime.InteropServices;
  31
  32 namespace System.Windows.Forms {
  33 #if NET_2_0
  34         [ClassInterface (ClassInterfaceType.AutoDispatch)]
  35         [ComVisible (true)]
  36         [Designer ("System.Windows.Forms.Design.ButtonBaseDesigner, " + Consts.AssemblySystem_Design,
  37                    "System.ComponentModel.Design.IDesigner")]
  38 #endif
  39         public class Button : ButtonBase, IButtonControl {
  40                 #region Local variables
  41                 DialogResult    dialog_result;
  42                 #endregion      // Local variables
  43
  44                 #region Public Constructors
  45                 public Button() {
  46                         dialog_result = DialogResult.None;
  47                         SetStyle(ControlStyles.StandardDoubleClick, false);
  48                 }
  49                 #endregion      // Public Constructors
  50
  51                 #region Internal methods
  52                 internal override void HaveDoubleClick() {
  53                         EventHandler eh = (EventHandler)(Events [DoubleClickEvent]);
  54                         if (eh != null)
  55                                 eh (this, EventArgs.Empty);
  56                 }
  57                 #endregion      // Internal methods
  58
  59                 #region Public Instance Properties
  60                 [DefaultValue(DialogResult.None)]
  61                 public virtual DialogResult DialogResult {              // IButtonControl
  62                         get {
  63                                 return dialog_result;
  64                         }
  65                         set {
  66                                 dialog_result = value;
  67                         }
  68                 }
  69                 #endregion      // Public Instance Properties
  70
  71                 #region Protected Instance Properties
  72                 protected override CreateParams CreateParams {
  73                         get {
  74                                 return base.CreateParams;
  75                         }
  76                 }
  77                 #endregion      // Protected Instance Properties
  78
  79                 #region Public Instance Methods
  80                 public virtual void NotifyDefault(bool value) { // IButtonControl
  81                         this.IsDefault = value;
  82                 }
  83
  84                 public void PerformClick() {                    // IButtonControl
  85                         if (CanSelect)
  86                                 OnClick(EventArgs.Empty);
  87                 }
  88
  89                 public override string ToString() {
  90                         return base.ToString() + ", Text: " + this.Text;
  91                 }
  92                 #endregion      // Public Instance Methods
  93
  94                 #region Protected Instance Methods
  95                 protected override void OnClick(EventArgs e) {
  96                         if (dialog_result != DialogResult.None) {
  97                                 Form p = Parent as Form;
  98
  99                                 if (p != null) {
 100                                         p.DialogResult = dialog_result;
 101                                 }
 102                         }
 103                         base.OnClick(e);
 104                 }
 105
 106                 protected override void OnMouseUp(MouseEventArgs e) {
 107                         base.OnMouseUp (e);
 108                 }
 109
 110                 protected override bool ProcessMnemonic(char charCode) {
 111                         if (IsMnemonic(charCode, Text) == true) {
 112                                 PerformClick();
 113                                 return true;
 114                         }
 115
 116                         return base.ProcessMnemonic(charCode);
 117                 }
 118
 119                 protected override void WndProc(ref Message m) {
 120                         base.WndProc (ref m);
 121                 }
 122                 #endregion      // Protected Instance Methods
 123
 124                 #region Events
 125                 static object DoubleClickEvent = new object ();
 126
 127                 // XXX this and HaveDoubleClick above need to be
 128                 // looked at.. it's far more likely that this just
 129                 // uses base.DoubleClick, and HaveDoubleClick goes
 130                 // away in favor of calls to OnDoubleClick.
 131                 [Browsable(false)]
 132                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 133                 public new event EventHandler DoubleClick {
 134                         add { Events.AddHandler (DoubleClickEvent, value); }
 135                         remove { Events.RemoveHandler (DoubleClickEvent, value); }
 136                 }
 137                 #endregion      // Events
 138 #if NET_2_0
 139                 protected override void OnMouseEnter (EventArgs e)
 140                 {
 141                         base.OnMouseEnter (e);
 142                 }
 143
 144                 protected override void OnMouseLeave (EventArgs e)
 145                 {
 146                         base.OnMouseLeave (e);
 147                 }
 148
 149                 protected override void OnTextChanged (EventArgs e)
 150                 {
 151                         base.OnTextChanged (e);
 152                 }
 153 #endif
 154         }
 155 }