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
|
//
// System.Windows.Forms.Design.AnchorEditor.cs
//
//
// For creating type editors see the *great* tutorial:
// "Walkthrough: implement a UI Type Editor"
//
// Author:
// Dennis Hayes
// Miguel de Icaza (miguel@novell.com)
// (C) 2006 Novell, Inc. http://www.ximian.com
//
//
// 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.
//
using System;
using System.Drawing;
using System.ComponentModel;
using System.Drawing.Design;
using System.Windows.Forms;
namespace System.Windows.Forms.Design
{
public sealed class AnchorEditor : UITypeEditor
{
#region Public Instance Constructors
public AnchorEditor()
{
}
#endregion Public Instance Constructors
#region Override implementation of UITypeEditor
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, Object value)
{
IWindowsFormsEditorService editor_service = null;
if (provider != null){
editor_service = provider.GetService (typeof (IWindowsFormsEditorService))
as IWindowsFormsEditorService;
}
if (editor_service != null){
AnchorSelector anchor_selector = new AnchorSelector (editor_service, (AnchorStyles) value);
editor_service.DropDownControl (anchor_selector);
value = anchor_selector.AnchorStyles;
}
return value;
}
public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
{
return UITypeEditorEditStyle.DropDown;
}
#endregion Override implementation of UITypeEditor
}
internal class AnchorSelector : UserControl
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null)) {
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.SuspendLayout();
this.Name = "AnchorSelector";
this.Size = new System.Drawing.Size (150, 120);
this.ResumeLayout(false);
}
public AnchorStyles AnchorStyles {
get {
return styles;
}
}
AnchorStyles styles;
public AnchorSelector (IWindowsFormsEditorService editor_service, AnchorStyles startup)
{
styles = startup;
InitializeComponent();
BackColor = Color.White;
}
void PaintState(Graphics g, int x1, int y1, int x2, int y2, AnchorStyles v)
{
if ((styles & v) != 0)
g.DrawLine(SystemPens.MenuText, x1, y1, x2, y2);
else {
int xf = (x1 == x2) ? 10 : 0;
int yf = (y1 == y2) ? 10 : 0;
g.DrawBezier(SystemPens.MenuText,
new Point(x1, y1),
new Point((x1+x2)/2+xf, (y1+y2)/2-yf),
new Point((x1+x2)/2-xf, (y1+y2)/2+yf),
new Point(x2, y2));
}
}
protected override void OnPaint (PaintEventArgs e)
{
Graphics g = e.Graphics;
int w3 = Width / 3;
int h3 = Height / 3;
int w2 = Width/2;
int h2 = Height/2;
g.FillRectangle(Brushes.Black, new Rectangle(w3, h3, w3, h3));
PaintState (g, 0, h2, w3, h2, AnchorStyles.Left);
PaintState (g, w3 * 2, h2, Width, h2, AnchorStyles.Right);
PaintState (g, w2, 0, w2, h3, AnchorStyles.Top);
PaintState (g, w2, h3 * 2, w2, Height, AnchorStyles.Bottom);
}
protected override void OnClick (EventArgs ee)
{
Point e = PointToClient (MousePosition);
int w3 = Width / 3;
int h3 = Height / 3;
if (e.X <= w3 && e.Y > h3 && e.Y < h3 * 2)
styles = styles ^ AnchorStyles.Left;
else if (e.Y < h3 && e.X > w3 && e.X < w3 * 2)
styles = styles ^ AnchorStyles.Top;
else if (e.X > w3 * 2 && e.Y > h3 && e.Y < h3 * 2)
styles = styles ^ AnchorStyles.Right;
else if (e.Y > h3 * 2 && e.X > w3 && e.X < w3 * 2)
styles = styles ^ AnchorStyles.Bottom;
else
base.OnClick(ee);
Invalidate();
}
protected override void OnDoubleClick (EventArgs ee)
{
OnClick (ee);
}
}
}
|
