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
|
//------------------------------------------------------------------------------
// <copyright file="DesignerForm.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//
// @owner [....]
// @backupOwner [....]
//------------------------------------------------------------------------------
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Design;
using System.Diagnostics;
using System.Drawing;
using System.Globalization;
using System.Windows.Forms;
using System.Windows.Forms.Design;
namespace System.Web.UI.Design.WebControls.Util
{
/// <devdoc>
/// Represents a form used by a designer.
/// </devdoc>
internal abstract class DesignerForm : Form
{
private const int SC_CONTEXTHELP = 0xF180;
private const int WM_SYSCOMMAND = 0x0112;
private IServiceProvider _serviceProvider;
private bool _firstActivate;
#if DEBUG
private bool _formInitialized;
#endif
/// <devdoc>
/// Creates a new DesignerForm with a given service provider.
/// </devdoc>
protected DesignerForm(IServiceProvider serviceProvider)
{
Debug.Assert(serviceProvider != null);
_serviceProvider = serviceProvider;
_firstActivate = true;
}
/// <devdoc>
/// The service provider for the form.
/// </devdoc>
protected internal IServiceProvider ServiceProvider
{
get
{
return _serviceProvider;
}
}
/// <devdoc>
/// Frees up resources.
/// </devdoc>
protected override void Dispose(bool disposing)
{
if (disposing)
{
_serviceProvider = null;
}
base.Dispose(disposing);
}
protected void InitializeForm()
{
Font dialogFont = UIHelper.GetDialogFont(ServiceProvider);
if (dialogFont != null)
{
Font = dialogFont;
}
// Set RightToLeft mode based on resource file
string rtlText = Strings.RTL;
if (!String.Equals(rtlText, "RTL_False", StringComparison.Ordinal))
{
RightToLeft = RightToLeft.Yes;
RightToLeftLayout = true;
}
#pragma warning disable 618
AutoScaleBaseSize = new System.Drawing.Size(5, 14);
#pragma warning restore 618
HelpButton = true;
MinimizeBox = false;
MaximizeBox = false;
ShowIcon = false;
ShowInTaskbar = false;
FormBorderStyle = FormBorderStyle.Sizable;
SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;
StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
MinimumSize = Size;
#if DEBUG
_formInitialized = true;
#endif
}
/// <devdoc>
/// Gets a service of the desired entitySetNameItem. Returns null if the service does not exist or there is no service provider.
/// </devdoc>
protected override object GetService(Type serviceType)
{
if (_serviceProvider != null)
{
return _serviceProvider.GetService(serviceType);
}
return null;
}
protected override void OnActivated(EventArgs e)
{
base.OnActivated(e);
if (_firstActivate)
{
_firstActivate = false;
OnInitialActivated(e);
}
}
/// <devdoc>
/// Returns the help topic for the form. Consult with your UE contact on
/// what the appropriate help topic is for your dialog.
/// </devdoc>
protected abstract string HelpTopic
{
get;
}
protected sealed override void OnHelpRequested(HelpEventArgs hevent)
{
ShowHelp();
hevent.Handled = true;
}
/// <summary>
/// Raised upon first activation of the form.
/// </summary>
/// <param name="e"></param>
protected virtual void OnInitialActivated(EventArgs e)
{
#if DEBUG
Debug.Assert(_formInitialized, "All classes deriving from DesignerForm must call InitializeForm() from within InitializeComponent().");
#endif
}
/// <devdoc>
/// Launches the help for this form.
/// </devdoc>
private void ShowHelp()
{
if (ServiceProvider != null)
{
IHelpService helpService = (IHelpService)ServiceProvider.GetService(typeof(IHelpService));
if (helpService != null)
{
helpService.ShowHelpFromKeyword(HelpTopic);
}
}
}
/// <devdoc>
/// Overridden to reroute the context-help button to our own handler.
/// </devdoc>
protected override void WndProc(ref Message m)
{
if ((m.Msg == WM_SYSCOMMAND) && ((int)m.WParam == SC_CONTEXTHELP))
{
ShowHelp();
return;
}
else
{
base.WndProc(ref m);
}
}
}
}
|
