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
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Changes from 1.0 to 1.2: GTK+ 2 Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
<link rel="home" href="index.html" title="GTK+ 2 Reference Manual">
<link rel="up" href="migrating.html" title="Part IV. Migrating from Previous Versions of GTK+">
<link rel="prev" href="checklist-named-icons.html" title="Use named icons">
<link rel="next" href="gtk-changes-2-0.html" title="Changes from 1.2 to 2.0">
<meta name="generator" content="GTK-Doc V1.33.0 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts"></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="migrating.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="checklist-named-icons.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="gtk-changes-2-0.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="gtk-changes-1-2"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle">Changes from 1.0 to 1.2</span></h2>
<p>Changes from 1.0 to 1.2 —
Incompatible changes made between version 1.0 and version 1.2
</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="id-1.5.4.3"></a><h2>Incompatible changes from 1.0 to 1.2</h2>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>
<span class="structname">GtkAcceleratorTable</span> has been replaced with
<span class="structname">GtkAccelGroup</span>.
</p></li>
<li class="listitem"><p>
<span class="structname">GtkMenuFactory</span> has been replaced with
<span class="structname">GtkItemFactory</span>, although
a version of <span class="structname">GtkMenuFactory</span> is currently still
provided to ease the migration phase.
</p></li>
<li class="listitem">
<p>
The <span class="structname">GtkTypeInfo</span> structures used in the
<code class="function">gtk_*_type_init()</code> functions have
changed a bit, the old format:
</p>
<pre class="programlisting">
GtkTypeInfo bin_info =
{
"GtkBin",
sizeof (GtkBin),
sizeof (GtkBinClass),
(GtkClassInitFunc) gtk_bin_class_init,
(GtkObjectInitFunc) gtk_bin_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
</pre>
<p>
needs to be converted to:
</p>
<pre class="programlisting">
static const GtkTypeInfo bin_info =
{
"GtkBin",
sizeof (GtkBin),
sizeof (GtkBinClass),
(GtkClassInitFunc) gtk_bin_class_init,
(GtkObjectInitFunc) gtk_bin_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
</pre>
<p>
the <code class="function">GtkArgSetFunc</code> and <code class="function">GtkArgGetFunc</code>
functions are not supported from the type system anymore, and you should make
sure that your code only fills in these fields with <code class="literal">NULL</code>
and doesn't use the deprecated function typedefs
<code class="literal">(GtkArgSetFunc)</code> and <code class="literal">(GtkArgGetFunc)</code>
anymore.
</p>
</li>
<li class="listitem">
<p>
A number of GTK+ functions were renamed. For compatibility,
<code class="filename">gtkcompat.h</code> #define's the old 1.0.x function names in
terms of the new names. To assure your GTK+ program doesn't rely on outdated
function variants, compile your program with
<code class="option">-DGTK_DISABLE_COMPAT_H</code> to disable
the compatibility aliases.
Here is the list of the old names and replacements:
</p>
<div class="informaltable"><table class="informaltable" border="1">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Old</th>
<th>Replacement</th>
</tr></thead>
<tbody>
<tr>
<td><code class="function">gtk_accel_label_accelerator_width</code></td>
<td><code class="function">gtk_accel_label_get_accel_width</code></td>
</tr>
<tr>
<td><code class="function">gtk_check_menu_item_set_state</code></td>
<td><code class="function">gtk_check_menu_item_set_active</code></td>
</tr>
<tr>
<td><code class="function">gtk_container_border_width</code></td>
<td><code class="function">gtk_container_set_border_width</code></td>
</tr>
<tr>
<td><code class="function">gtk_label_set</code></td>
<td><code class="function">gtk_label_set_text</code></td>
</tr>
<tr>
<td><code class="function">gtk_notebook_current_page</code></td>
<td><code class="function">gtk_notebook_get_current_page</code></td>
</tr>
<tr>
<td><code class="function">gtk_packer_configure</code></td>
<td><code class="function">gtk_packer_set_child_packing</code></td>
</tr>
<tr>
<td><code class="function">gtk_paned_gutter_size</code></td>
<td><code class="function">gtk_paned_set_gutter_size</code></td>
</tr>
<tr>
<td><code class="function">gtk_paned_handle_size</code></td>
<td><code class="function">gtk_paned_set_handle_size</code></td>
</tr>
<tr>
<td><code class="function">gtk_scale_value_width</code></td>
<td><code class="function">gtk_scale_get_value_width</code></td>
</tr>
<tr>
<td><code class="function">gtk_style_apply_default_pixmap</code></td>
<td><code class="function">gtk_style_apply_default_background</code></td>
</tr>
<tr>
<td><code class="function">gtk_toggle_button_set_state</code></td>
<td><code class="function">gtk_toggle_button_set_active</code></td>
</tr>
<tr>
<td><code class="function">gtk_window_position</code></td>
<td><code class="function">gtk_window_set_position</code></td>
</tr>
</tbody>
</table></div>
<p>
Note that <code class="function">gtk_style_apply_default_background()</code> has an
additional argument, <code class="literal">set_bg</code>. This parameter should be
<code class="literal">FALSE</code> if the background is being set for a
<code class="literal">NO_WINDOW</code> widget, otherwise <code class="literal">TRUE</code>.
</p>
</li>
<li class="listitem">
<p>
During the development phase of the 1.1.x line of GTK+ certain functions
were deprecated and later removed. Functions affected are:
</p>
<div class="informaltable"><table class="informaltable" border="1">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>Removed</th>
<th>Replacement</th>
</tr></thead>
<tbody>
<tr>
<td><code class="function">gtk_clist_set_border</code></td>
<td><code class="function">gtk_clist_set_shadow_type</code></td>
</tr>
<tr>
<td><code class="function">gtk_container_block_resize</code></td>
<td><code class="function">gtk_container_set_resize_mode</code></td>
</tr>
<tr>
<td><code class="function">gtk_container_unblock_resize</code></td>
<td><code class="function">gtk_container_set_resize_mode</code></td>
</tr>
<tr>
<td><code class="function">gtk_container_need_resize</code></td>
<td><code class="function">gtk_container_check_resize</code></td>
</tr>
<tr>
<td><code class="function">gtk_ctree_show_stub</code></td>
<td><code class="function">gtk_ctree_set_show_stub</code></td>
</tr>
<tr>
<td><code class="function">gtk_ctree_set_reorderable</code></td>
<td><code class="function">gtk_clist_set_reorderable</code></td>
</tr>
<tr>
<td><code class="function">gtk_ctree_set_use_drag_icons</code></td>
<td><code class="function">gtk_clist_set_use_drag_icons</code></td>
</tr>
<tr>
<td><code class="function">gtk_entry_adjust_scroll</code></td>
<td><code class="function">-</code></td>
</tr>
<tr>
<td><code class="function">gtk_object_class_add_user_signal</code></td>
<td><code class="function">gtk_object_class_user_signal_new</code></td>
</tr>
<tr>
<td><code class="function">gtk_preview_put_row</code></td>
<td><code class="function">gtk_preview_put</code></td>
</tr>
<tr>
<td><code class="function">gtk_progress_bar_construct</code></td>
<td><code class="function">gtk_progress_set_adjustment</code></td>
</tr>
<tr>
<td><code class="function">gtk_scrolled_window_construct</code></td>
<td><code class="function">gtk_scrolled_window_set_{h|v}adjustment</code></td>
</tr>
<tr>
<td><code class="function">gtk_spin_button_construct</code></td>
<td><code class="function">gtk_spin_button_configure</code></td>
</tr>
<tr>
<td><code class="function">gtk_widget_thaw_accelerators</code></td>
<td><code class="function">gtk_widget_unlock_accelerators</code></td>
</tr>
<tr>
<td><code class="function">gtk_widget_freeze_accelerators</code></td>
<td><code class="function">gtk_widget_lock_accelerators</code></td>
</tr>
</tbody>
</table></div>
<p>
Note that <code class="function">gtk_entry_adjust_scroll()</code> is no longer needed
as <span class="structname">GtkEntry</span> should automatically keep the scroll
adjusted properly.
</p>
</li>
<li class="listitem"><p>
Additionally, all <code class="function">gtk_*_interp()</code> functions were removed.
<code class="function">gtk_*_full()</code> versions were provided as of GTK+ 1.0 and
should be used instead.
</p></li>
<li class="listitem"><p>
<span class="structname">GtkButton</span> has been changed to derive from
<span class="structname">GtkBin</span>.
To access a button's child, use <code class="literal">GTK_BIN (button)->child</code>,
instead of the old <code class="literal">GTK_BUTTON (button)->child</code>.
</p></li>
<li class="listitem">
<p>
The selection API has been slightly modified:
<code class="function">gtk_selection_add_handler()</code> and
<code class="function">gtk_selection_add_handler_full()</code>
have been removed. To supply the selection, one now registers
the targets one is interested in with:
</p>
<pre class="programlisting">
void gtk_selection_add_target (GtkWidget *widget,
GdkAtom selection,
GdkAtom target,
guint info);
</pre>
<p>
or:
</p>
<pre class="programlisting">
void gtk_selection_add_targets (GtkWidget *widget,
GdkAtom selection,
GtkTargetEntry *targets,
guint ntargets);
</pre>
<p>
When a request for a selection is received, the new "selection_get"
signal will be called:
</p>
<pre class="programlisting">
void "selection_get" (GtkWidget *widget,
GtkSelectionData *selection_data,
guint info,
guint time);
</pre>
<p>
A "time" parameter has also been added to the "selection_received"
signal.
</p>
<pre class="programlisting">
void "selection_received" (GtkWidget *widget,
GtkSelectionData *selection_data,
guint time);
</pre>
<p>
</p>
</li>
<li class="listitem"><p>
The old drag and drop API has been completely removed and replaced.
See the reference documentation for details on the new API.
</p></li>
<li class="listitem">
<p>
Support for Themes has been added. In general, this does
not affect application code, however, a few new rules should
be observed:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
<li class="listitem"><p>To set a shape for a window, you must use
<code class="function">gtk_widget_shape_combine_mask()</code> instead of
<code class="function">gdk_window_shape_combine_mask()</code>, or the shape will be
reset when switching themes.
</p></li>
<li class="listitem"><p>It is no longer permissable to draw directly on an arbitrary
widget, or to set an arbitrary widget's background pixmap.
If you need to do that, use a <span class="structname">GtkDrawingArea</span> or
(for a toplevel) a <span class="structname">GtkWindow</span> where
<code class="function">gtk_widget_set_app_paintable()</code>
has been called.
</p></li>
</ul></div>
<p>
</p>
</li>
<li class="listitem">
<p>
The <span class="structname">GtkScrolledWindow</span> widget no longer creates a
<span class="structname">GtkViewport</span> automatically. Instead, it has been
generalized to accept any "self-scrolling" widget.
</p>
<p>
The self-scrolling widgets in the GTK+ core are
<span class="structname">GtkViewport</span>,
<span class="structname">GtkCList</span>, <span class="structname">GtkCTree</span>,
<span class="structname">GtkText</span>, and <span class="structname">GtkLayout</span>.
All of these widgets can be added to a scrolled window as normal children with
<code class="function">gtk_container_add()</code> and scrollbars will be set up
automatically.
</p>
<p>
To add scrollbars to a non self-scrolling widget, (such as a
<span class="structname">GtkList</span>),
first add it to a viewport, then add the viewport to a scrolled window.
The scrolled window code provides a convenience function to do this:
</p>
<pre class="programlisting">
void gtk_scrolled_window_add_with_viewport (GtkScrolledWindow *scrollwin,
GtkWidget *child);
</pre>
<p>
This does exactly what it says - it creates a viewport, adds the child
widget to it, then adds the viewport to the scrolled window.
</p>
<p>
The scrollbars have been removed from the <span class="structname">GtkCList</span>
and <span class="structname">GtkCTree</span>, because they are now scrolled by simply
adding them to a scrolled window. The scrollbar policy is set on the scrolled
window with <code class="function">gtk_scrolled_window_set_policy()</code> and not on
the child widgets (e.g. <span class="structname">GtkCList</span>'s
<code class="function">gtk_clist_set_policy()</code> was removed).
</p>
</li>
<li class="listitem"><p>
The "main loop" of GTK+ has been moved to GLib. This should not
affect existing programs, since compatibility functions have
been provided. However, you may want to consider migrating
your code to use the GLib main loop directly.
</p></li>
<li class="listitem"><p>
the <code class="literal">GTK_BASIC</code> flag was removed, and with it the corresponding
macro and function <code class="function">GTK_WIDGET_BASIC()</code> and
<code class="function">gtk_widget_basic()</code>.
</p></li>
<li class="listitem">
<p>
All freeze/thaw methods are now recursive - that is, if you
freeze a widget n times, you must also thaw it n times.
Therefore, if you have code like:
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4
5
6</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">gboolean</span> <span class="n">frozen</span><span class="p">;</span>
<span class="n">frozen</span> <span class="o">=</span> <span class="n">GTK_CLIST_FROZEN</span> <span class="p">(</span><span class="n">clist</span><span class="p">);</span>
<span class="n">gtk_clist_freeze</span> <span class="p">(</span><span class="n">clist</span><span class="p">);</span>
<span class="p">[...]</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">frozen</span><span class="p">)</span>
<span class="n">gtk_clist_thaw</span> <span class="p">(</span><span class="n">clist</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
it will not work anymore. It must be, simply:
</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="n">gtk_clist_freeze</span> <span class="p">(</span><span class="n">clist</span><span class="p">);</span>
<span class="p">[...]</span>
<span class="n">gtk_clist_thaw</span> <span class="p">(</span><span class="n">clist</span><span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<p>
</p>
</li>
<li class="listitem">
<p>
The thread safety in GTK+ 1.2 is slightly different than
that which appeared in early versions in the 1.1
development track. The main difference is that it relies on
the thread primitives in GLib, and on the thread-safe
GLib main loop.
</p>
<p>
This means:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
<li class="listitem"><p>You must call <code class="function">g_thread_init()</code> before
executing any other GTK+ or GDK functions in a threaded GTK+ program.
</p></li>
<li class="listitem">
<p>Idles, timeouts, and input functions are executed outside
of the main GTK+ lock. So, if you need to call GTK+
inside of such a callback, you must surround the callback
with a <code class="function">gdk_threads_enter()</code>/<code class="function">gdk_threads_leave()</code>
pair.
</p>
<p>However, signals are still executed within the main
GTK+ lock.
</p>
<p>In particular, this means, if you are writing widgets
that might be used in threaded programs, you <span class="emphasis"><em>must</em></span>
surround timeouts and idle functions in this matter.
</p>
<p>As always, you must also surround any calls to GTK+
not made within a signal handler with a
<code class="function">gdk_threads_enter()</code>/<code class="function">gdk_threads_leave()</code>
pair.
</p>
</li>
<li class="listitem">
<p>There is no longer a special <code class="option">--with-threads</code>
<span class="command"><strong>configure</strong></span> option for GTK+. To use threads in a GTK+
program, you must:
</p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><p>If you want to use the native thread implementation,
make sure GLib found this in configuration, otherwise,
call you must provide a thread implementation to
<code class="function">g_thread_init()</code>.
</p></li>
<li class="listitem"><p>Link with the libraries returned by
<span class="command"><strong>gtk-config --libs gthread</strong></span>
and use the cflags from
<span class="command"><strong>gtk-config --cflags gthread</strong></span>.
You can get these <code class="envar">CFLAGS</code> and <code class="envar">LIBS</code> by
passing <code class="literal">gthread</code> as the fourth parameter to the
<code class="literal">AM_PATH_GTK</code> <span class="application">automake</span>
macro.
</p></li>
</ol></div>
<p>
</p>
</li>
</ul></div>
<p>
</p>
</li>
<li class="listitem">
<p>
Prior to GTK+ 1.2, there were two conflicting interpretations
of <code class="literal">widget->requisition</code>. It was either taken to be
the size that the widget requested, or that size modified by calls to
<code class="function">gtk_widget_set_usize()</code>. In GTK+ 1.2,
it is always interpreted the first way.
</p>
<p>
Container widgets are affected in two ways by this:
</p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<p>Container widgets should not pass
<code class="literal">widget->requisition</code> as the second parameter to
<code class="function">gtk_widget_size_request()</code>.
Instead they should call it like:
</p>
<pre class="programlisting">
GtkRequisition child_requisition;
gtk_widget_size_request (widget, &child_requisition);
</pre>
<p>
</p>
</li>
<li class="listitem">
<p>Container widgets should not access
<code class="literal">child->requisition</code> directly. Either they should use
the values returned by <code class="function">gtk_widget_size_request()</code>,
or they should call the new function:
</p>
<pre class="programlisting">
void gtk_widget_get_child_requisition (GtkWidget *widget,
GtkRequisition *requisition);
</pre>
<p>
which returns the requisition of the given widget, modified
by calls to <code class="function">gtk_widget_set_usize()</code>.
</p>
</li>
</ol></div>
<p>
</p>
</li>
</ul></div>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.33.0</div>
</body>
</html>
|
