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 // Authors:
  24 //              Jordi Mas i Hernandez, jordi@ximian.com
  25 //
  26 // TODO:
  27 //
  28 // Copyright (C) Novell Inc., 2004-2005
  29 //
  30 //
  31
  32 // COMPLETE
  33
  34 using System.Drawing;
  35 using System.ComponentModel;
  36 using System.ComponentModel.Design;
  37
  38 namespace System.Windows.Forms
  39 {
  40         [DefaultProperty("Text")]
  41         [DefaultEvent("Enter")]
  42         [Designer ("System.Windows.Forms.Design.GroupBoxDesigner, " + Consts.AssemblySystem_Design, (string)null)]
  43         public class GroupBox : Control
  44         {
  45                 private FlatStyle flat_style;
  46                 private Rectangle display_rectangle = new Rectangle ();
  47
  48                 #region Events
  49                 [Browsable(false)]
  50                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  51                 public new event EventHandler Click;
  52
  53                 [Browsable(false)]
  54                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  55                 public new event EventHandler DoubleClick;
  56
  57                 [Browsable(false)]
  58                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  59                 public new event KeyEventHandler KeyDown;
  60
  61                 [Browsable(false)]
  62                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  63                 public new event KeyPressEventHandler KeyPress;
  64
  65                 [Browsable(false)]
  66                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  67                 public new event KeyEventHandler KeyUp;
  68
  69                 [Browsable(false)]
  70                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  71                 public new event MouseEventHandler MouseDown;
  72
  73                 [Browsable(false)]
  74                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  75                 public new event EventHandler MouseEnter;
  76
  77                 [Browsable(false)]
  78                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  79                 public new event EventHandler MouseLeave;
  80
  81                 [Browsable(false)]
  82                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  83                 public new event MouseEventHandler MouseMove;
  84
  85                 [Browsable(false)]
  86                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  87                 public new event MouseEventHandler MouseUp;
  88
  89                 [Browsable(false)]
  90                 [EditorBrowsable(EditorBrowsableState.Advanced)]
  91                 public new event EventHandler TabStopChanged;
  92                 #endregion Events
  93
  94                 public GroupBox ()
  95                 {
  96                         TabStop = false;
  97                         flat_style = FlatStyle.Standard;
  98
  99                         SetStyle(ControlStyles.ContainerControl, true);
 100                         SetStyle(ControlStyles.Selectable, false);
 101                         SetStyle (ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint, true);
 102                 }
 103
 104                 #region Public Properties
 105                 [Browsable(false)]
 106                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 107                 public override bool AllowDrop {
 108                         get { return base.AllowDrop;  }
 109                         set { base.AllowDrop = value; }
 110                 }
 111
 112                 protected override CreateParams CreateParams {
 113                         get { return base.CreateParams; }
 114                 }
 115
 116                 protected override Size DefaultSize {
 117                         get { return ThemeEngine.Current.GroupBoxDefaultSize;}
 118                 }
 119
 120                 public override Rectangle DisplayRectangle {
 121                         get {
 122                                 display_rectangle.X = 3;
 123                                 display_rectangle.Y = Font.Height + 3;
 124                                 display_rectangle.Width = Width - 6;
 125                                 display_rectangle.Height = Height - Font.Height - 6;
 126                                 return display_rectangle;
 127                         }
 128                 }
 129
 130                 [DefaultValue(FlatStyle.Standard)]
 131                 public FlatStyle FlatStyle {
 132                         get { return flat_style; }
 133                         set {
 134                                 if (!Enum.IsDefined (typeof (FlatStyle), value))
 135                                          new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for FlatStyle", value));
 136
 137                                 if (flat_style == value)
 138                                         return;
 139
 140                                 flat_style = value;
 141                                 Refresh ();
 142                         }
 143                 }
 144
 145                 [Browsable(false)]
 146                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 147                 public new bool TabStop {
 148                         get { return base.TabStop;  }
 149                         set { base.TabStop = value; }
 150                 }
 151
 152                 [Localizable(true)]
 153                 public override string Text {
 154                         get { return base.Text; }
 155                         set {
 156                                 if (base.Text == value)
 157                                         return;
 158
 159                                 base.Text = value;
 160                                 Refresh ();
 161                         }
 162                 }
 163
 164                 #endregion //Public Properties
 165
 166                 #region Public Methods
 167                 protected override void OnFontChanged (EventArgs e)
 168                 {
 169                         base.OnFontChanged (e);
 170                         Refresh ();
 171                 }
 172
 173                 protected override void OnPaint (PaintEventArgs pevent)
 174                 {
 175                         Draw ();
 176                         pevent.Graphics.DrawImage (ImageBuffer, 0, 0);
 177                 }
 178
 179                 protected override bool ProcessMnemonic (char charCode)
 180                 {
 181                         if (IsMnemonic(charCode, Text) == true) {
 182                                 // Select item next in line in tab order
 183                                 if (this.parent != null) {
 184                                         parent.SelectNextControl(this, true, false, true, false);
 185                                 }
 186                                 return true;
 187                         }
 188
 189                         return base.ProcessMnemonic (charCode);
 190                 }
 191
 192                 public override string ToString()
 193                 {
 194                         return GetType ().FullName.ToString () + ", Text: " + Text;
 195                 }
 196
 197                 protected override void WndProc(ref Message m) {
 198                         switch ((Msg) m.Msg) {
 199                                 case Msg.WM_ERASEBKGND:
 200                                         m.Result = (IntPtr)1;
 201                                         break;
 202                                 default:
 203                                         base.WndProc (ref m);
 204                                         break;
 205                         }
 206                 }
 207
 208                 #endregion Public Methods
 209
 210                 #region Private Methods
 211
 212                 private void Draw ()
 213                 {
 214                         ThemeEngine.Current.DrawGroupBox (DeviceContext, ClientRectangle, this);
 215                 }
 216
 217                 #endregion // Private Methods
 218         }
 219 }