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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="content-type">
<title>GTK+ Foundation Classes</title>
<link href="gfc.css" rel="stylesheet" type="text/css">
<meta content="The GFC Development Team" name="author">
<meta content="Core Library Reference Manual" name="description">
</head>
<body style="color: rgb(0, 0, 0); background-color: rgb(243, 244, 248);"
alink="#000099" link="#000099" vlink="#990099">
<table style="text-align: left; width: 1227px; height: 117px;"
border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td
style="text-align: center; background-color: rgb(255, 255, 255); width: 220px; vertical-align: top;"><img
alt="GFC Logo" src="../images/gfc.png"
style="width: 207px; height: 92px;"></td>
<td
style="text-align: center; background-color: rgb(87, 107, 152); vertical-align: middle;"><img
alt="GFC Title Logo" src="../images/gfc-title.png"
style="width: 418px; height: 76px;"><br>
</td>
</tr>
<tr>
<td
style="text-align: center; background-color: rgb(65, 77, 104); vertical-align: middle;"><big><span
style="color: rgb(255, 255, 153); font-weight: bold;">Reference Manual</span></big><br>
</td>
<td
style="text-align: center; background-color: rgb(148, 164, 200); vertical-align: middle;"><small
style="font-family: helvetica,arial,sans-serif;"><a
href="../html/index.html">Main Page</a> | <a
href="../html/namespaces.html">Namespace List</a> | <a
href="classes.html">Alphabetical List</a> | <a
href="../html/annotated.html">Class List</a> | <a
href="../html/files.html">File List</a></small><br>
</td>
</tr>
</tbody>
</table>
<small> </small>
</body>
</html>
<!-- Generated by Doxygen 1.3.8 -->
<h1>GFC::Gdk::PixbufLoaderSignals Class Reference</h1>Abstract base class that implements the virtual signal handlers for <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoader.html">Gdk::PixbufLoader</a>.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="pixbuf-loadersignals_8hh-source.html">gfc/gdk-pibuf/pixbuf-loadersignals.hh</a>></code>
<p>
<p>Inheritance diagram for GFC::Gdk::PixbufLoaderSignals:
<p><center><img src="classGFC_1_1Gdk_1_1PixbufLoaderSignals.png" usemap="#GFC::Gdk::PixbufLoaderSignals_map" border="0" alt=""></center>
<map name="GFC::Gdk::PixbufLoaderSignals_map">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1ObjectSignals.html" alt="GFC::G::ObjectSignals" shape="rect" coords="0,112,188,136">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1TypeInstance.html" alt="GFC::G::TypeInstance" shape="rect" coords="0,56,188,80">
<area doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html" alt="GFC::Trackable" shape="rect" coords="0,0,188,24">
</map>
<a href="classGFC_1_1Gdk_1_1PixbufLoaderSignals-members.html">List of all members.</a><h2>Public Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Signal Handlers</div></td></tr>
<ul>
<li>void <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html#z250_0">on_size_prepared</a> (int width, int height)
<dl class="el"><dd class="mdescRight">Called when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create. <a href="#z250_0"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html#z250_1">on_area_prepared</a> ()
<dl class="el"><dd class="mdescRight">Called when the pixbuf loader has allocated the pixbuf in the desired size. <a href="#z250_1"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html#z250_2">on_area_updated</a> (int x, int y, int width, int height)
<dl class="el"><dd class="mdescRight">Called when a significant area of the image being loaded has been updated. <a href="#z250_2"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html#z250_3">on_closed</a> ()
<dl class="el"><dd class="mdescRight">Called when close() is called. <a href="#z250_3"></a><br></dl></ul>
<h2>Protected Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Constructors</div></td></tr>
<ul>
<li><a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html#z249_0">PixbufLoaderSignals</a> (<a class="el" href="classGFC_1_1Gdk_1_1PixbufLoader.html">PixbufLoader</a> *pixbuf_loader)
<dl class="el"><dd class="mdescRight">Constructs a new <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html">PixbufLoaderSignals</a> object. <a href="#z249_0"></a><br></dl><li><a class="anchor" name="z249_1" doxytag="GFC::Gdk::PixbufLoaderSignals::~PixbufLoaderSignals" ></a>
virtual <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html#z249_1">~PixbufLoaderSignals</a> ()=0
<dl class="el"><dd class="mdescRight">Destructor. <br></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Abstract base class that implements the virtual signal handlers for <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoader.html">Gdk::PixbufLoader</a>.
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="z249_0" doxytag="GFC::Gdk::PixbufLoaderSignals::PixbufLoaderSignals" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Gdk::PixbufLoaderSignals::PixbufLoaderSignals </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="classGFC_1_1Gdk_1_1PixbufLoader.html">PixbufLoader</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>pixbuf_loader</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [protected]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Constructs a new <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html">PixbufLoaderSignals</a> object.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>pixbuf_loader</em> </td><td>A <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoader.html">PixbufLoader</a> object inheriting the <a class="el" href="classGFC_1_1Gdk_1_1PixbufLoaderSignals.html">PixbufLoaderSignals</a> implementation. </td></tr>
</table>
</dl>
</td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="z250_1" doxytag="GFC::Gdk::PixbufLoaderSignals::on_area_prepared" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void GFC::Gdk::PixbufLoaderSignals::on_area_prepared </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Called when the pixbuf loader has allocated the pixbuf in the desired size.
<p>
After this signal is emitted, applications can call get_pixbuf() to fetch the partially-loaded pixbuf. </td>
</tr>
</table>
<a class="anchor" name="z250_2" doxytag="GFC::Gdk::PixbufLoaderSignals::on_area_updated" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void GFC::Gdk::PixbufLoaderSignals::on_area_updated </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>x</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>y</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>width</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>height</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Called when a significant area of the image being loaded has been updated.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>x</em> </td><td>The X coordinate of the updated area. </td></tr>
<tr><td></td><td valign=top><em>y</em> </td><td>The Y coordinate of the updated area. </td></tr>
<tr><td></td><td valign=top><em>width</em> </td><td>The width of the updated area. </td></tr>
<tr><td></td><td valign=top><em>height</em> </td><td>The height of the updated area.</td></tr>
</table>
</dl>
<br>
Normally it means that one or more complete scanlines has been read in, but it could be a different area as well. Applications can use this signal to know when to repaint areas of an image that is being loaded. Usually the x coordinate and the width will remain the same. The y coordinate changes each time one or more scanlines are read in. The height is the number of scanlines, in pixels. </td>
</tr>
</table>
<a class="anchor" name="z250_3" doxytag="GFC::Gdk::PixbufLoaderSignals::on_closed" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void GFC::Gdk::PixbufLoaderSignals::on_closed </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Called when close() is called.
<p>
It can be used by different parts of an application to receive notification when an image loader is closed by the code that drives it. </td>
</tr>
</table>
<a class="anchor" name="z250_0" doxytag="GFC::Gdk::PixbufLoaderSignals::on_size_prepared" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void GFC::Gdk::PixbufLoaderSignals::on_size_prepared </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>width</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>height</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Called when the pixbuf loader has been fed the initial amount of data that is required to figure out the size of the image that it will create.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>width</em> </td><td>The width of the image the pixbuf loader will create. </td></tr>
<tr><td></td><td valign=top><em>height</em> </td><td>The height of the image the pixbuf loader will create.</td></tr>
</table>
</dl>
<br>
Applications can call set_size() in response to this signal to set the desired size to which the image should be scaled. </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="pixbuf-loadersignals_8hh-source.html">pixbuf-loadersignals.hh</a></ul>
<hr size="1"><address style="align: right;"><small>Generated on Tue Aug 24 00:34:36 2004 for GFC-UI by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
</body>
</html>
|
