1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
//
// CheckBoxRenderer.cs
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2006 Novell, Inc.
//
// Authors:
// Jonathan Pobst (monkey@jpobst.com)
//
using System.Drawing;
using System.Windows.Forms.VisualStyles;
namespace System.Windows.Forms
{
public sealed class CheckBoxRenderer
{
private static bool always_use_visual_styles = false;
#region Private Constructor
private CheckBoxRenderer () {}
#endregion
#region Public Static Methods
public static void DrawCheckBox (Graphics g, Point glyphLocation, CheckBoxState state)
{
DrawCheckBox (g, glyphLocation, Rectangle.Empty, String.Empty, null, TextFormatFlags.HorizontalCenter, null, Rectangle.Empty, false, state);
}
public static void DrawCheckBox (Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, bool focused, CheckBoxState state)
{
DrawCheckBox (g, glyphLocation, textBounds, checkBoxText, font, TextFormatFlags.HorizontalCenter, null, Rectangle.Empty, focused, state);
}
public static void DrawCheckBox (Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, TextFormatFlags flags, bool focused, CheckBoxState state)
{
DrawCheckBox (g, glyphLocation, textBounds, checkBoxText, font, flags, null, Rectangle.Empty, focused, state);
}
public static void DrawCheckBox (Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, Image image, Rectangle imageBounds, bool focused, CheckBoxState state)
{
DrawCheckBox (g, glyphLocation, textBounds, checkBoxText, font, TextFormatFlags.HorizontalCenter, image, imageBounds, focused, state);
}
public static void DrawCheckBox (Graphics g, Point glyphLocation, Rectangle textBounds, string checkBoxText, Font font, TextFormatFlags flags, Image image, Rectangle imageBounds, bool focused, CheckBoxState state)
{
Rectangle bounds = new Rectangle (glyphLocation, GetGlyphSize (g, state));
if (Application.RenderWithVisualStyles || always_use_visual_styles == true) {
VisualStyleRenderer vsr = GetCheckBoxRenderer (state);
vsr.DrawBackground (g, bounds);
if (image != null)
vsr.DrawImage (g, imageBounds, image);
if (focused)
ControlPaint.DrawFocusRectangle (g, textBounds);
if (checkBoxText != String.Empty)
if (state == CheckBoxState.CheckedDisabled || state == CheckBoxState.MixedDisabled || state == CheckBoxState.UncheckedDisabled)
TextRenderer.DrawText (g, checkBoxText, font, textBounds, SystemColors.GrayText, flags);
else
TextRenderer.DrawText (g, checkBoxText, font, textBounds, SystemColors.ControlText, flags);
} else {
switch (state) {
case CheckBoxState.CheckedDisabled:
case CheckBoxState.MixedDisabled:
case CheckBoxState.MixedPressed:
ControlPaint.DrawCheckBox (g, bounds, ButtonState.Inactive | ButtonState.Checked);
break;
case CheckBoxState.CheckedHot:
case CheckBoxState.CheckedNormal:
ControlPaint.DrawCheckBox (g, bounds, ButtonState.Checked);
break;
case CheckBoxState.CheckedPressed:
ControlPaint.DrawCheckBox (g, bounds, ButtonState.Pushed | ButtonState.Checked);
break;
case CheckBoxState.MixedHot:
case CheckBoxState.MixedNormal:
ControlPaint.DrawMixedCheckBox (g, bounds, ButtonState.Checked);
break;
case CheckBoxState.UncheckedDisabled:
case CheckBoxState.UncheckedPressed:
ControlPaint.DrawCheckBox (g, bounds, ButtonState.Inactive);
break;
case CheckBoxState.UncheckedHot:
case CheckBoxState.UncheckedNormal:
ControlPaint.DrawCheckBox (g, bounds, ButtonState.Normal);
break;
}
if (image != null)
g.DrawImage (image, imageBounds);
if (focused)
ControlPaint.DrawFocusRectangle (g, textBounds);
if (checkBoxText != String.Empty)
TextRenderer.DrawText (g, checkBoxText, font, textBounds, SystemColors.ControlText, flags);
}
}
public static bool IsBackgroundPartiallyTransparent (CheckBoxState state)
{
if (!VisualStyleRenderer.IsSupported)
return false;
VisualStyleRenderer vsr = GetCheckBoxRenderer (state);
return vsr.IsBackgroundPartiallyTransparent ();
}
public static void DrawParentBackground (Graphics g, Rectangle bounds, Control childControl)
{
if (!VisualStyleRenderer.IsSupported)
return;
VisualStyleRenderer vsr = new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.UncheckedNormal);
vsr.DrawParentBackground (g, bounds, childControl);
}
public static Size GetGlyphSize (Graphics g, CheckBoxState state)
{
if (!VisualStyleRenderer.IsSupported)
return new Size (13, 13);
VisualStyleRenderer vsr = GetCheckBoxRenderer (state);
return vsr.GetPartSize (g, ThemeSizeType.Draw);
}
#endregion
#region Private Static Methods
private static VisualStyleRenderer GetCheckBoxRenderer (CheckBoxState state)
{
switch (state) {
case CheckBoxState.CheckedDisabled:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.CheckedDisabled);
case CheckBoxState.CheckedHot:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.CheckedHot);
case CheckBoxState.CheckedNormal:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.CheckedNormal);
case CheckBoxState.CheckedPressed:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.CheckedPressed);
case CheckBoxState.MixedDisabled:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.MixedDisabled);
case CheckBoxState.MixedHot:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.MixedHot);
case CheckBoxState.MixedNormal:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.MixedNormal);
case CheckBoxState.MixedPressed:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.MixedPressed);
case CheckBoxState.UncheckedDisabled:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.UncheckedDisabled);
case CheckBoxState.UncheckedHot:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.UncheckedHot);
case CheckBoxState.UncheckedNormal:
default:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.UncheckedNormal);
case CheckBoxState.UncheckedPressed:
return new VisualStyleRenderer (VisualStyleElement.Button.CheckBox.UncheckedPressed);
}
}
#endregion
#region Public Static Properties
public static bool RenderMatchingApplicationState {
get { return !always_use_visual_styles; }
set { always_use_visual_styles = !value; }
}
#endregion
}
}
|
