class/Managed.Windows.Forms/System.Windows.Forms.Theming/ThemeElements.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2007 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Jonathan Pobst (monkey@jpobst.com)
  24 //      Everaldo Canuto  <ecanuto@novell.com>
  25
  26 using System;
  27 using System.Drawing;
  28 using System.Reflection;
  29
  30 namespace System.Windows.Forms.Theming
  31 {
  32         internal class ThemeElements
  33         {
  34                 private static ThemeElementsDefault theme;
  35                 public static ThemeElementsDefault CurrentTheme {
  36                         get { return theme; }
  37                 }
  38
  39                 static ThemeElements ()
  40                 {
  41                         string theme_var;
  42
  43                         theme_var = Environment.GetEnvironmentVariable ("MONO_THEME");
  44
  45                         if (theme_var == null)
  46                                 theme_var = "win32";
  47                         else
  48                                 theme_var = theme_var.ToLower ();
  49
  50                         theme = LoadTheme (theme_var);
  51
  52                 }
  53
  54                 private static ThemeElementsDefault LoadTheme (string themeName)
  55                 {
  56                         if (themeName == "visualstyles")
  57                                 if (Application.VisualStylesEnabled)
  58                                         return new ThemeElementsVisualStyles ();
  59                                 else
  60                                         return new ThemeElementsDefault ();
  61                         Assembly ass = Assembly.GetExecutingAssembly ();
  62                         string iname = typeof(ThemeElements).FullName;
  63                         string assemblyname = iname + themeName;
  64                         Type type = ass.GetType (assemblyname, false, true);
  65                         if (type != null) {
  66                                 object o = ass.CreateInstance (type.FullName);
  67                                 if (o != null)
  68                                         return (ThemeElementsDefault) o;
  69                         }
  70                         return new ThemeElementsDefault ();
  71                 }
  72
  73                 #region Buttons
  74                 public static void DrawButton (Graphics g, Rectangle bounds, ButtonThemeState state, Color backColor, Color foreColor)
  75                 {
  76                         theme.ButtonPainter.Draw (g, bounds, state, backColor, foreColor);
  77                 }
  78
  79                 public static void DrawFlatButton (Graphics g, Rectangle bounds, ButtonThemeState state, Color backColor, Color foreColor, FlatButtonAppearance appearance)
  80                 {
  81                         theme.ButtonPainter.DrawFlat (g, bounds, state, backColor, foreColor, appearance);
  82                 }
  83
  84                 public static void DrawPopupButton (Graphics g, Rectangle bounds, ButtonThemeState state, Color backColor, Color foreColor)
  85                 {
  86                         theme.ButtonPainter.DrawPopup (g, bounds, state, backColor, foreColor);
  87                 }
  88                 #endregion
  89
  90                 #region Painters
  91
  92                 public virtual Default.ButtonPainter ButtonPainter {
  93                         get { return theme.ButtonPainter; }
  94                 }
  95
  96                 public static Default.LabelPainter LabelPainter {
  97                         get { return theme.LabelPainter; }
  98                 }
  99
 100                 public static Default.LinkLabelPainter LinkLabelPainter {
 101                         get { return theme.LinkLabelPainter; }
 102                 }
 103
 104                 public virtual Default.TabControlPainter TabControlPainter {
 105                         get { return theme.TabControlPainter; }
 106                 }
 107
 108 #if NET_2_0
 109                 public virtual Default.CheckBoxPainter CheckBoxPainter {
 110                         get { return theme.CheckBoxPainter; }
 111                 }
 112
 113                 public virtual Default.RadioButtonPainter RadioButtonPainter {
 114                         get { return theme.RadioButtonPainter; }
 115                 }
 116
 117                 public virtual Default.ToolStripPainter ToolStripPainter {
 118                         get { return theme.ToolStripPainter; }
 119                 }
 120 #endif
 121
 122                 #endregion
 123         }
 124
 125         #region Internal Enums
 126         [Flags]
 127         internal enum ButtonThemeState
 128         {
 129                 Normal = 1,
 130                 Entered = 2,
 131                 Pressed = 4,
 132                 Disabled = 8,
 133                 Default = 16
 134         }
 135
 136         internal enum ElementState
 137         {
 138                 Normal = 1,
 139                 Hot = 2,
 140                 Pressed = 3,
 141                 Disabled = 4
 142         }
 143         #endregion
 144 }