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

   1 //
   2 // System.Windows.Forms.GroupBox.cs
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Autors:
  24 //              Jordi Mas i Hernandez, jordi@ximian.com
  25 //
  26 // TODO:
  27 //
  28 // Copyright (C) Novell Inc., 2004
  29 //
  30 //
  31
  32 // COMPLETE
  33
  34 using System.Drawing;
  35 using System.ComponentModel;
  36
  37 namespace System.Windows.Forms
  38 {
  39         public class GroupBox : Control
  40         {
  41                 private FlatStyle flat_style;
  42                 private Bitmap bmp_mem = null;
  43                 private Graphics dc_mem = null;
  44                 private Rectangle display_rectangle = new Rectangle ();
  45
  46                 #region Events
  47                 public new event EventHandler Click;
  48                 public new event EventHandler DoubleClick;
  49                 public new event KeyEventHandler KeyDown;
  50                 public new event KeyPressEventHandler KeyPress;
  51                 public new event KeyEventHandler KeyUp;
  52                 public new event MouseEventHandler MouseDown;
  53                 public new event EventHandler MouseEnter;
  54                 public new event EventHandler MouseLeave;
  55                 public new event MouseEventHandler MouseMove;
  56                 public new event MouseEventHandler MouseUp;
  57                 public new event EventHandler TabStopChanged;
  58                 #endregion Events
  59
  60                 public GroupBox ()
  61                 {
  62                         TabStop = false;
  63                         flat_style = FlatStyle.Standard;
  64                 }
  65
  66                 #region Public Properties
  67                 public override bool AllowDrop {
  68                         get { return base.AllowDrop;  }
  69                         set { base.AllowDrop = value; }
  70                 }
  71
  72                 protected override CreateParams CreateParams {
  73                         get { return base.CreateParams; }
  74                 }
  75
  76                 protected override Size DefaultSize {
  77                         get { return ThemeEngine.Current.GroupBoxDefaultSize;}
  78                 }
  79
  80                 public override Rectangle DisplayRectangle {
  81                         get {
  82                                 display_rectangle.X = 3;
  83                                 display_rectangle.Y = Font.Height + 3;
  84                                 display_rectangle.Width = Width - 6;
  85                                 display_rectangle.Height = Height - Font.Height - 6;
  86                                 return display_rectangle;
  87                         }
  88                 }
  89
  90                 public FlatStyle FlatStyle {
  91                         get { return flat_style; }
  92                         set {
  93                                 if (!Enum.IsDefined (typeof (FlatStyle), value))
  94                                          new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for FlatStyle", value));
  95
  96                                 if (flat_style == value)
  97                                         return;
  98
  99                                 flat_style = value;
 100                                 Refresh ();
 101                         }
 102                 }
 103
 104                 public new bool TabStop {
 105                         get { return base.TabStop;  }
 106                         set { base.TabStop = value; }
 107                 }
 108
 109                 public override string Text {
 110                         get { return base.Text; }
 111                         set {
 112                                 if (base.Text == value)
 113                                         return;
 114
 115                                 base.Text = value;
 116                                 Refresh ();
 117                         }
 118                 }
 119
 120                 #endregion //Public Properties
 121
 122                 #region Public Methods
 123                 protected override void OnFontChanged (EventArgs e)
 124                 {
 125                         base.OnFontChanged (e);
 126                         Refresh ();
 127                 }
 128
 129                 protected override void OnPaint (PaintEventArgs pevent)
 130                 {
 131                         Draw ();
 132                         pevent.Graphics.DrawImage (ImageBuffer, 0, 0);
 133                 }
 134
 135                 protected override bool ProcessMnemonic (char charCode)
 136                 {
 137                         return base.ProcessMnemonic(charCode);
 138                 }
 139
 140                 public override string ToString()
 141                 {
 142                         return GetType ().FullName.ToString () + ", Text: " + Text;
 143                 }
 144
 145                 protected override void WndProc(ref Message m) {
 146                         switch ((Msg) m.Msg) {
 147                                 case Msg.WM_ERASEBKGND:
 148                                         m.Result = (IntPtr)1;
 149                                         break;
 150                                 default:
 151                                         base.WndProc (ref m);
 152                                         break;
 153                         }
 154                 }
 155
 156                 #endregion Public Methods
 157
 158                 #region Private Methods
 159
 160                 private void Draw ()
 161                 {
 162                         ThemeEngine.Current.DrawGroupBox (DeviceContext, ClientRectangle, this);
 163                 }
 164
 165                 #endregion // Private Methods
 166         }
 167 }