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
194
195
196
197
198
199
|
//------------------------------------------------------------------------------
// <copyright file="ImageDesigner.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.Design.MobileControls
{
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Text;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.MobileControls;
using System.Web.UI.MobileControls.Adapters;
using System.Web.UI.Design.MobileControls.Adapters;
using System.Web.UI.Design.MobileControls.Converters;
using System.Web.UI.Design.MobileControls.Util;
using Image = System.Web.UI.MobileControls.Image;
[
System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand,
Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
]
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal class ImageDesigner : MobileControlDesigner
{
private Image _image;
private TemporaryBitmapFile _tempBmpFile;
private Uri _cachedWbmpUri;
private String _baseUrl = String.Empty;
private String BaseUrl
{
get
{
if (_baseUrl != null && _baseUrl.Length == 0)
{
IWebFormsDocumentService wfServices =
(IWebFormsDocumentService)GetService(typeof(IWebFormsDocumentService));
Debug.Assert(wfServices != null);
_baseUrl = wfServices.DocumentUrl;
}
return _baseUrl;
}
}
/// <summary>
/// <para>
/// Initializes the designer.
/// </para>
/// </summary>
/// <param name='component'>
/// The control element being designed.
/// </param>
/// <remarks>
/// <para>
/// This is called by the designer host to establish the component being
/// designed.
/// </para>
/// </remarks>
/// <seealso cref='System.ComponentModel.Design.IDesigner'/>
public override void Initialize(IComponent component)
{
Debug.Assert(component is System.Web.UI.MobileControls.Image,
"ImageDesigner.Initialize - Invalid Image Control");
_image = (System.Web.UI.MobileControls.Image) component;
base.Initialize(component);
}
/// <summary>
/// <para>
/// Disposes of the resources (other than memory) used by the
/// <see cref='System.Web.UI.Design.MobileControls.ListDesigner'/>.
/// </para>
/// </summary>
/// <remarks>
/// <para>
/// Call <see langword='Dispose'/> when
/// you are finished using the <see cref='System.Web.UI.Design.MobileControls.ListDesigner'/>. The <see langword='Dispose'/> method leaves the <see cref='System.Web.UI.Design.WebControls.DataListDesigner'/> in an unusable state. After
/// calling <see langword='Dispose'/>, you must release all
/// references to the <see cref='System.Web.UI.Design.MobileControls.ListDesigner'/> so the memory it was occupying
/// can be reclaimed by garbage collection.
/// </para>
/// <note type="note">
/// Always call <see langword='Dispose'/> before you release your last reference to
/// the <see cref='System.Web.UI.Design.MobileControls.ListDesigner'/>. Otherwise, the resources
/// the <see cref='System.Web.UI.Design.MobileControls.ListDesigner'/> is using will not be freed
/// until garbage collection calls the <see cref='System.Web.UI.Design.MobileControls.ListDesigner'/> object's
/// destructor.
/// </note>
/// </remarks>
/// <seealso cref='System.ComponentModel.Design.IDesigner'/>
protected override void Dispose(bool disposing)
{
if (disposing && _tempBmpFile != null)
{
_tempBmpFile.Dispose();
_cachedWbmpUri = null;
_tempBmpFile = null;
}
base.Dispose(disposing);
}
private String GetConvertedImageURI(String imageUriString)
{
Uri baseUri = new Uri(BaseUrl);
Uri imageUri = new Uri(baseUri, imageUriString);
String extension = Path.GetExtension(imageUriString);
if(extension.Equals(".wbmp"))
{
if(_tempBmpFile != null)
{
if(_cachedWbmpUri != null
&& _cachedWbmpUri.Equals(imageUri))
{
return _tempBmpFile.Url;
}
else
{
_tempBmpFile.Dispose();
_tempBmpFile = null;
_cachedWbmpUri = null;
}
}
Byte[] buffer = FileReader.Read(imageUri);
if(buffer == null)
{
// Could not read image from URI, return original URI to
// Trident and let it render as a broken image.
goto ConversionError;
}
Bitmap bitmap = WbmpConverter.Convert(buffer);
if(bitmap == null)
{
// .wbmp appears to be corrupt, return original URI to
// Trident and let it render as a broken image.
goto ConversionError;
}
_tempBmpFile = new TemporaryBitmapFile(bitmap);
imageUriString = _tempBmpFile.Url;
_cachedWbmpUri = imageUri;
}
ConversionError:
return imageUriString;
}
/// <summary>
/// <para>
/// Gets the HTML to be used for the design time representation of the control runtime.
/// </para>
/// </summary>
/// <returns>
/// <para>
/// The design time HTML.
/// </para>
/// </returns>
protected override String GetDesignTimeNormalHtml()
{
String tempUrl = String.Empty;
bool replaceUrl = (_image.ImageUrl.Length > 0);
DesignerTextWriter writer = new DesignerTextWriter();
tempUrl = _image.ImageUrl;
_image.ImageUrl = GetConvertedImageURI(_image.ImageUrl);
_image.Adapter.Render(writer);
_image.ImageUrl = tempUrl;
return writer.ToString();
}
public override void OnComponentChanged(Object sender, ComponentChangedEventArgs e)
{
if ((e.Member != null) && e.Member.Name.Equals("NavigateUrl"))
{
_image.NavigateUrl = NavigateUrlConverter.GetUrl(
_image,
e.NewValue.ToString(),
e.OldValue.ToString()
);
e = new ComponentChangedEventArgs(e.Component, e.Member, e.OldValue, _image.NavigateUrl);
}
base.OnComponentChanged(sender, e);
}
}
}
|
