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

   1 //
   2 // TabRenderer.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 // Copyright (c) 2006 Novell, Inc.
  24 //
  25 // Authors:
  26 //      Jonathan Pobst (monkey@jpobst.com)
  27 //
  28
  29 #if NET_2_0
  30 using System.Drawing;
  31 using System.Windows.Forms.VisualStyles;
  32
  33 namespace System.Windows.Forms
  34 {
  35         public sealed class TabRenderer
  36         {
  37                 #region Private Constructor
  38                 private TabRenderer () { }
  39                 #endregion
  40
  41                 #region Public Static Methods
  42                 public static void DrawTabItem (Graphics g, Rectangle bounds, TabItemState state)
  43                 {
  44                         DrawTabItem(g, bounds, String.Empty, null, TextFormatFlags.Default, null, Rectangle.Empty, false, state);
  45                 }
  46
  47                 public static void DrawTabItem (Graphics g, Rectangle bounds, bool focused, TabItemState state)
  48                 {
  49                         DrawTabItem (g, bounds, String.Empty, null, TextFormatFlags.Default, null, Rectangle.Empty, focused, state);
  50                 }
  51
  52                 public static void DrawTabItem (Graphics g, Rectangle bounds, string tabItemText, Font font, TabItemState state)
  53                 {
  54                         DrawTabItem (g, bounds, tabItemText, font, TextFormatFlags.HorizontalCenter, null, Rectangle.Empty, false, state);
  55                 }
  56
  57                 public static void DrawTabItem (Graphics g, Rectangle bounds, Image image, Rectangle imageRectangle, bool focused, TabItemState state)
  58                 {
  59                         DrawTabItem (g, bounds, String.Empty, null, TextFormatFlags.HorizontalCenter, image, imageRectangle, focused, state);
  60                 }
  61
  62                 public static void DrawTabItem (Graphics g, Rectangle bounds, string tabItemText, Font font, bool focused, TabItemState state)
  63                 {
  64                         DrawTabItem (g, bounds, tabItemText, font, TextFormatFlags.HorizontalCenter, null, Rectangle.Empty, focused, state);
  65                 }
  66
  67                 public static void DrawTabItem (Graphics g, Rectangle bounds, string tabItemText, Font font, TextFormatFlags flags, bool focused, TabItemState state)
  68                 {
  69                         DrawTabItem (g, bounds, tabItemText, font, flags, null, Rectangle.Empty, focused, state);
  70                 }
  71
  72                 public static void DrawTabItem (Graphics g, Rectangle bounds, string tabItemText, Font font, Image image, Rectangle imageRectangle, bool focused, TabItemState state)
  73                 {
  74                         DrawTabItem (g, bounds, tabItemText, font, TextFormatFlags.HorizontalCenter, image, imageRectangle, focused, state);
  75                 }
  76
  77                 public static void DrawTabItem (Graphics g, Rectangle bounds, string tabItemText, Font font, TextFormatFlags flags, Image image, Rectangle imageRectangle, bool focused, TabItemState state)
  78                 {
  79                         if (!IsSupported)
  80                                 throw new InvalidOperationException ();
  81
  82                         VisualStyleRenderer vsr;
  83
  84                         switch (state) {
  85                                 case TabItemState.Disabled:
  86                                         vsr = new VisualStyleRenderer (VisualStyleElement.Tab.TabItem.Disabled);
  87                                         break;
  88                                 case TabItemState.Hot:
  89                                         vsr = new VisualStyleRenderer (VisualStyleElement.Tab.TabItem.Hot);
  90                                         break;
  91                                 case TabItemState.Normal:
  92                                 default:
  93                                         vsr = new VisualStyleRenderer (VisualStyleElement.Tab.TabItem.Normal);
  94                                         break;
  95                                 case TabItemState.Selected:
  96                                         vsr = new VisualStyleRenderer (VisualStyleElement.Tab.TabItem.Pressed);
  97                                         break;
  98                         }
  99
 100                         vsr.DrawBackground (g, bounds);
 101
 102                         if(image != null)
 103                                 vsr.DrawImage(g, imageRectangle, image);
 104
 105                         bounds.Offset(3,3);
 106                         bounds.Height -= 6;
 107                         bounds.Width -= 6;
 108
 109                         if(tabItemText != String.Empty)
 110                                 TextRenderer.DrawText(g, tabItemText, font, bounds, SystemColors.ControlText,flags);
 111
 112                         if(focused)
 113                                 ControlPaint.DrawFocusRectangle(g, bounds);
 114                 }
 115
 116                 public static void DrawTabPage (Graphics g, Rectangle bounds)
 117                 {
 118                         if (!IsSupported)
 119                                 throw new InvalidOperationException ();
 120
 121                         VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.Tab.Pane.Normal); ;
 122
 123                         vsr.DrawBackground (g, bounds);
 124                 }
 125                 #endregion
 126
 127                 #region Public Static Properties
 128                 public static bool IsSupported {
 129                         get { return VisualStyleInformation.IsEnabledByUser && (Application.VisualStyleState == VisualStyleState.ClientAndNonClientAreasEnabled || Application.VisualStyleState == VisualStyleState.ClientAreaEnabled); }
 130                 }
 131                 #endregion
 132         }
 133 }
 134 #endif