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