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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GtkTreeModelSort</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
<link rel="home" href="index.html" title="GTK+ Reference Manual">
<link rel="up" href="TreeWidgetObjects.html" title="Tree, List and Icon Grid Widgets">
<link rel="prev" href="GtkTreeSortable.html" title="GtkTreeSortable">
<link rel="next" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">
<meta name="generator" content="GTK-Doc V1.14 (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="2">
<tr valign="middle">
<td><a accesskey="p" href="GtkTreeSortable.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="TreeWidgetObjects.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">GTK+ Reference Manual</th>
<td><a accesskey="n" href="GtkTreeModelFilter.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#GtkTreeModelSort.synopsis" class="shortcut">Top</a>
|
<a href="#GtkTreeModelSort.description" class="shortcut">Description</a>
|
<a href="#GtkTreeModelSort.object-hierarchy" class="shortcut">Object Hierarchy</a>
|
<a href="#GtkTreeModelSort.implemented-interfaces" class="shortcut">Implemented Interfaces</a>
|
<a href="#GtkTreeModelSort.properties" class="shortcut">Properties</a>
</td></tr>
</table>
<div class="refentry" title="GtkTreeModelSort">
<a name="GtkTreeModelSort"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GtkTreeModelSort.top_of_page"></a>GtkTreeModelSort</span></h2>
<p>GtkTreeModelSort — A GtkTreeModel which makes an underlying tree model sortable</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="GtkTreeModelSort.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <gtk/gtk.h>
<a class="link" href="GtkTreeModelSort.html#GtkTreeModelSort-struct" title="GtkTreeModelSort">GtkTreeModelSort</a>;
<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="returnvalue">GtkTreeModel</span></a> * <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-new-with-model" title="gtk_tree_model_sort_new_with_model ()">gtk_tree_model_sort_new_with_model</a> (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *child_model</code></em>);
<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="returnvalue">GtkTreeModel</span></a> * <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-get-model" title="gtk_tree_model_sort_get_model ()">gtk_tree_model_sort_get_model</a> (<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model</code></em>);
<a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> * <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-convert-child-path-to-path" title="gtk_tree_model_sort_convert_child_path_to_path ()">gtk_tree_model_sort_convert_child_path_to_path</a>
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a> *child_path</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-convert-child-iter-to-iter" title="gtk_tree_model_sort_convert_child_iter_to_iter ()">gtk_tree_model_sort_convert_child_iter_to_iter</a>
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *sort_iter</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *child_iter</code></em>);
<a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> * <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-convert-path-to-child-path" title="gtk_tree_model_sort_convert_path_to_child_path ()">gtk_tree_model_sort_convert_path_to_child_path</a>
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a> *sorted_path</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-convert-iter-to-child-iter" title="gtk_tree_model_sort_convert_iter_to_child_iter ()">gtk_tree_model_sort_convert_iter_to_child_iter</a>
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *child_iter</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *sorted_iter</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-reset-default-sort-func" title="gtk_tree_model_sort_reset_default_sort_func ()">gtk_tree_model_sort_reset_default_sort_func</a>
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-clear-cache" title="gtk_tree_model_sort_clear_cache ()">gtk_tree_model_sort_clear_cache</a> (<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GtkTreeModelSort.html#gtk-tree-model-sort-iter-is-valid" title="gtk_tree_model_sort_iter_is_valid ()">gtk_tree_model_sort_iter_is_valid</a> (<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="GtkTreeModelSort.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
+----GtkTreeModelSort
</pre>
</div>
<div class="refsect1" title="Implemented Interfaces">
<a name="GtkTreeModelSort.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GtkTreeModelSort implements
<a class="link" href="GtkTreeModel.html" title="GtkTreeModel">GtkTreeModel</a>, <a class="link" href="GtkTreeSortable.html" title="GtkTreeSortable">GtkTreeSortable</a> and <a class="link" href="gtk-GtkTreeView-drag-and-drop.html#GtkTreeDragSource">GtkTreeDragSource</a>.</p>
</div>
<div class="refsect1" title="Properties">
<a name="GtkTreeModelSort.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="GtkTreeModelSort.html#GtkTreeModelSort--model" title='The "model" property'>model</a>" <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>* : Read / Write / Construct Only
</pre>
</div>
<div class="refsect1" title="Description">
<a name="GtkTreeModelSort.description"></a><h2>Description</h2>
<p>
The <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> is a model which implements the <a class="link" href="GtkTreeSortable.html" title="GtkTreeSortable"><span class="type">GtkTreeSortable</span></a>
interface. It does not hold any data itself, but rather is created with
a child model and proxies its data. It has identical column types to
this child model, and the changes in the child are propagated. The
primary purpose of this model is to provide a way to sort a different
model without modifying it. Note that the sort function used by
<a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> is not guaranteed to be stable.
</p>
<p>
The use of this is best demonstrated through an example. In the
following sample code we create two <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a> widgets each with a
view of the same data. As the model is wrapped here by a
<a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>, the two <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a>s can each sort their
view of the data without affecting the other. By contrast, if we
simply put the same model in each widget, then sorting the first would
sort the second.
</p>
<p>
</p>
<div class="example">
<a name="id668922"></a><p class="title"><b>Example 23. Using a <span class="structname">GtkTreeModelSort</span></b></p>
<div class="example-contents">
<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
7
8
9
10
11
12
13
14
15
16
17
18
19
20</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="cbracket">{</span>
<span class="normal"> <a href="GtkTreeView.html">GtkTreeView</a> </span><span class="symbol">*</span><span class="normal">tree_view1</span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeView.html">GtkTreeView</a> </span><span class="symbol">*</span><span class="normal">tree_view2</span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeModel.html">GtkTreeModel</a> </span><span class="symbol">*</span><span class="normal">sort_model1</span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeModel.html">GtkTreeModel</a> </span><span class="symbol">*</span><span class="normal">sort_model2</span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeModel.html">GtkTreeModel</a> </span><span class="symbol">*</span><span class="normal">child_model</span><span class="symbol">;</span>
<span class="normal"> </span><span class="comment">/* get the child model */</span>
<span class="normal"> child_model </span><span class="symbol">=</span><span class="normal"> </span><span class="function">get_my_model</span><span class="normal"> </span><span class="symbol">();</span>
<span class="normal"> </span><span class="comment">/* Create the first tree */</span>
<span class="normal"> sort_model1 </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTreeModelSort.html#gtk-tree-model-sort-new-with-model">gtk_tree_model_sort_new_with_model</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">child_model</span><span class="symbol">);</span>
<span class="normal"> tree_view1 </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTreeView.html#gtk-tree-view-new-with-model">gtk_tree_view_new_with_model</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model1</span><span class="symbol">);</span>
<span class="normal"> </span><span class="comment">/* Create the second tree */</span>
<span class="normal"> sort_model2 </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTreeModelSort.html#gtk-tree-model-sort-new-with-model">gtk_tree_model_sort_new_with_model</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">child_model</span><span class="symbol">);</span>
<span class="normal"> tree_view2 </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTreeView.html#gtk-tree-view-new-with-model">gtk_tree_view_new_with_model</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model2</span><span class="symbol">);</span>
<span class="normal"> </span><span class="comment">/* Now we can sort the two models independently */</span>
<span class="normal"> </span><span class="function"><a href="GtkTreeSortable.html#gtk-tree-sortable-set-sort-column-id">gtk_tree_sortable_set_sort_column_id</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TREE_SORTABLE</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model1</span><span class="symbol">),</span>
<span class="normal"> COLUMN_1</span><span class="symbol">,</span><span class="normal"> <a href="gtk-Standard-Enumerations.html#GTK-SORT-ASCENDING:CAPS">GTK_SORT_ASCENDING</a></span><span class="symbol">);</span>
<span class="normal"> </span><span class="function"><a href="GtkTreeSortable.html#gtk-tree-sortable-set-sort-column-id">gtk_tree_sortable_set_sort_column_id</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TREE_SORTABLE</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model2</span><span class="symbol">),</span>
<span class="normal"> COLUMN_1</span><span class="symbol">,</span><span class="normal"> <a href="gtk-Standard-Enumerations.html#GTK-SORT-DESCENDING:CAPS">GTK_SORT_DESCENDING</a></span><span class="symbol">);</span>
<span class="cbracket">}</span></pre></td>
</tr>
</tbody>
</table>
</div>
</div>
<p><br class="example-break">
</p>
<p>
To demonstrate how to access the underlying child model from the sort
model, the next example will be a callback for the <a class="link" href="GtkTreeSelection.html" title="GtkTreeSelection"><span class="type">GtkTreeSelection</span></a>
"changed" signal. In this callback, we get a string from COLUMN_1 of
the model. We then modify the string, find the same selected row on the
child model, and change the row there.
</p>
<p>
</p>
<div class="example">
<a name="id798696"></a><p class="title"><b>Example 24. Accessing the child model of in a selection changed callback</b></p>
<div class="example-contents">
<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
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</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="type">void</span>
<span class="function">selection_changed</span><span class="normal"> </span><span class="symbol">(</span><span class="normal"><a href="GtkTreeSelection.html">GtkTreeSelection</a> </span><span class="symbol">*</span><span class="normal">selection</span><span class="symbol">,</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer">gpointer</a> data</span><span class="symbol">)</span>
<span class="cbracket">{</span>
<span class="normal"> <a href="GtkTreeModel.html">GtkTreeModel</a> </span><span class="symbol">*</span><span class="normal">sort_model </span><span class="symbol">=</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS">NULL</a></span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeModel.html">GtkTreeModel</a> </span><span class="symbol">*</span><span class="normal">child_model</span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> sort_iter</span><span class="symbol">;</span>
<span class="normal"> <a href="GtkTreeModel.html#GtkTreeIter">GtkTreeIter</a> child_iter</span><span class="symbol">;</span>
<span class="normal"> </span><span class="type">char</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">some_data </span><span class="symbol">=</span><span class="normal"> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS">NULL</a></span><span class="symbol">;</span>
<span class="normal"> </span><span class="type">char</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">modified_data</span><span class="symbol">;</span>
<span class="normal"> </span><span class="comment">/* Get the current selected row and the model. */</span>
<span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(!</span><span class="normal"> </span><span class="function"><a href="GtkTreeSelection.html#gtk-tree-selection-get-selected">gtk_tree_selection_get_selected</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">selection</span><span class="symbol">,</span>
<span class="normal"> </span><span class="symbol">&</span><span class="normal">sort_model</span><span class="symbol">,</span>
<span class="normal"> </span><span class="symbol">&</span><span class="normal">sort_iter</span><span class="symbol">))</span>
<span class="normal"> </span><span class="keyword">return</span><span class="symbol">;</span>
<span class="normal"> </span><span class="comment">/* Look up the current value on the selected row and get a new value</span>
<span class="comment"> * to change it to.</span>
<span class="comment"> */</span>
<span class="normal"> </span><span class="function"><a href="GtkTreeModel.html#gtk-tree-model-get">gtk_tree_model_get</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TREE_MODEL</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model</span><span class="symbol">),</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">sort_iter</span><span class="symbol">,</span>
<span class="normal"> COLUMN_1</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">some_data</span><span class="symbol">,</span>
<span class="normal"> </span><span class="symbol">-</span><span class="number">1</span><span class="symbol">);</span>
<span class="normal"> modified_data </span><span class="symbol">=</span><span class="normal"> </span><span class="function">change_the_data</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">some_data</span><span class="symbol">);</span>
<span class="normal"> </span><span class="function"><a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free">g_free</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">some_data</span><span class="symbol">);</span>
<span class="normal"> </span><span class="comment">/* Get an iterator on the child model, instead of the sort model. */</span>
<span class="normal"> </span><span class="function"><a href="GtkTreeModelSort.html#gtk-tree-model-sort-convert-iter-to-child-iter">gtk_tree_model_sort_convert_iter_to_child_iter</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TREE_MODEL_SORT</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model</span><span class="symbol">),</span>
<span class="normal"> </span><span class="symbol">&</span><span class="normal">child_iter</span><span class="symbol">,</span>
<span class="normal"> </span><span class="symbol">&</span><span class="normal">sort_iter</span><span class="symbol">);</span>
<span class="normal"> </span><span class="comment">/* Get the child model and change the value of the row. In this</span>
<span class="comment"> * example, the child model is a GtkListStore. It could be any other</span>
<span class="comment"> * type of model, though.</span>
<span class="comment"> */</span>
<span class="normal"> child_model </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="GtkTreeModelSort.html#gtk-tree-model-sort-get-model">gtk_tree_model_sort_get_model</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_TREE_MODEL_SORT</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">sort_model</span><span class="symbol">));</span>
<span class="normal"> </span><span class="function"><a href="GtkListStore.html#gtk-list-store-set">gtk_list_store_set</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function">GTK_LIST_STORE</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">child_model</span><span class="symbol">),</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">child_iter</span><span class="symbol">,</span>
<span class="normal"> COLUMN_1</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">modified_data</span><span class="symbol">,</span>
<span class="normal"> </span><span class="symbol">-</span><span class="number">1</span><span class="symbol">);</span>
<span class="normal"> </span><span class="function"><a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-free">g_free</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">modified_data</span><span class="symbol">);</span>
<span class="cbracket">}</span></pre></td>
</tr>
</tbody>
</table>
</div>
</div>
<p><br class="example-break">
</p>
</div>
<div class="refsect1" title="Details">
<a name="GtkTreeModelSort.details"></a><h2>Details</h2>
<div class="refsect2" title="GtkTreeModelSort">
<a name="GtkTreeModelSort-struct"></a><h3>GtkTreeModelSort</h3>
<pre class="programlisting">typedef struct _GtkTreeModelSort GtkTreeModelSort;</pre>
<p>
This should not be accessed directly. Use the accessor functions below.
</p>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_new_with_model ()">
<a name="gtk-tree-model-sort-new-with-model"></a><h3>gtk_tree_model_sort_new_with_model ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="returnvalue">GtkTreeModel</span></a> * gtk_tree_model_sort_new_with_model (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *child_model</code></em>);</pre>
<p>
Creates a new <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>, with <em class="parameter"><code>child_model</code></em> as the child model.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_model</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> A new <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_get_model ()">
<a name="gtk-tree-model-sort-get-model"></a><h3>gtk_tree_model_sort_get_model ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="returnvalue">GtkTreeModel</span></a> * gtk_tree_model_sort_get_model (<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model</code></em>);</pre>
<p>
Returns the model the <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> is sorting.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tree_model</code></em> :</span></p></td>
<td>a <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the "child model" being sorted
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_convert_child_path_to_path ()">
<a name="gtk-tree-model-sort-convert-child-path-to-path"></a><h3>gtk_tree_model_sort_convert_child_path_to_path ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> * gtk_tree_model_sort_convert_child_path_to_path
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a> *child_path</code></em>);</pre>
<p>
Converts <em class="parameter"><code>child_path</code></em> to a path relative to <em class="parameter"><code>tree_model_sort</code></em>. That is,
<em class="parameter"><code>child_path</code></em> points to a path in the child model. The returned path will
point to the same row in the sorted model. If <em class="parameter"><code>child_path</code></em> isn't a valid
path on the child model, then <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_path</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a> to convert
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> A newly allocated <a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_convert_child_iter_to_iter ()">
<a name="gtk-tree-model-sort-convert-child-iter-to-iter"></a><h3>gtk_tree_model_sort_convert_child_iter_to_iter ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gtk_tree_model_sort_convert_child_iter_to_iter
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *sort_iter</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *child_iter</code></em>);</pre>
<p>
Sets <em class="parameter"><code>sort_iter</code></em> to point to the row in <em class="parameter"><code>tree_model_sort</code></em> that corresponds to
the row pointed at by <em class="parameter"><code>child_iter</code></em>. If <em class="parameter"><code>sort_iter</code></em> was not set, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>
is returned. Note: a boolean is only returned since 2.14.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sort_iter</code></em> :</span></p></td>
<td>An uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_iter</code></em> :</span></p></td>
<td>A valid <a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to a row on the child model
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, if <em class="parameter"><code>sort_iter</code></em> was set, i.e. if <em class="parameter"><code>sort_iter</code></em> is a
valid iterator pointer to a visible row in the child model.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_convert_path_to_child_path ()">
<a name="gtk-tree-model-sort-convert-path-to-child-path"></a><h3>gtk_tree_model_sort_convert_path_to_child_path ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> * gtk_tree_model_sort_convert_path_to_child_path
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a> *sorted_path</code></em>);</pre>
<p>
Converts <em class="parameter"><code>sorted_path</code></em> to a path on the child model of <em class="parameter"><code>tree_model_sort</code></em>.
That is, <em class="parameter"><code>sorted_path</code></em> points to a location in <em class="parameter"><code>tree_model_sort</code></em>. The
returned path will point to the same location in the model not being
sorted. If <em class="parameter"><code>sorted_path</code></em> does not point to a location in the child model,
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sorted_path</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a> to convert
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> A newly allocated <a class="link" href="GtkTreeModel.html#GtkTreePath" title="GtkTreePath"><span class="type">GtkTreePath</span></a>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_convert_iter_to_child_iter ()">
<a name="gtk-tree-model-sort-convert-iter-to-child-iter"></a><h3>gtk_tree_model_sort_convert_iter_to_child_iter ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gtk_tree_model_sort_convert_iter_to_child_iter
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *child_iter</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *sorted_iter</code></em>);</pre>
<p>
Sets <em class="parameter"><code>child_iter</code></em> to point to the row pointed to by <em class="parameter"><code>sorted_iter</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>child_iter</code></em> :</span></p></td>
<td>An uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sorted_iter</code></em> :</span></p></td>
<td>A valid <a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to a row on <em class="parameter"><code>tree_model_sort</code></em>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_reset_default_sort_func ()">
<a name="gtk-tree-model-sort-reset-default-sort-func"></a><h3>gtk_tree_model_sort_reset_default_sort_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gtk_tree_model_sort_reset_default_sort_func
(<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>);</pre>
<p>
This resets the default sort function to be in the 'unsorted' state. That
is, it is in the same order as the child model. It will re-sort the model
to be in the same order as the child model only if the <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
is in 'unsorted' state.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_clear_cache ()">
<a name="gtk-tree-model-sort-clear-cache"></a><h3>gtk_tree_model_sort_clear_cache ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gtk_tree_model_sort_clear_cache (<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>);</pre>
<p>
This function should almost never be called. It clears the <em class="parameter"><code>tree_model_sort</code></em>
of any cached iterators that haven't been reffed with
<a class="link" href="GtkTreeModel.html#gtk-tree-model-ref-node" title="gtk_tree_model_ref_node ()"><code class="function">gtk_tree_model_ref_node()</code></a>. This might be useful if the child model being
sorted is static (and doesn't change often) and there has been a lot of
unreffed access to nodes. As a side effect of this function, all unreffed
iters will be invalid.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gtk_tree_model_sort_iter_is_valid ()">
<a name="gtk-tree-model-sort-iter-is-valid"></a><h3>gtk_tree_model_sort_iter_is_valid ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gtk_tree_model_sort_iter_is_valid (<em class="parameter"><code><a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> *tree_model_sort</code></em>,
<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>
</p>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p>
This function is slow. Only use it for debugging and/or testing purposes.
</p>
</div>
<p>
</p>
<p>
Checks if the given iter is a valid iter for this <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>tree_model_sort</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>iter</code></em> :</span></p></td>
<td>A <a class="link" href="GtkTreeModel.html#GtkTreeIter" title="GtkTreeIter"><span class="type">GtkTreeIter</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the iter is valid, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if the iter is invalid.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
</div>
<div class="refsect1" title="Property Details">
<a name="GtkTreeModelSort.property-details"></a><h2>Property Details</h2>
<div class="refsect2" title='The "model" property'>
<a name="GtkTreeModelSort--model"></a><h3>The <code class="literal">"model"</code> property</h3>
<pre class="programlisting"> "model" <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>* : Read / Write / Construct Only</pre>
<p>The model for the TreeModelSort to sort.</p>
</div>
</div>
<div class="refsect1" title="See Also">
<a name="GtkTreeModelSort.see-also"></a><h2>See Also</h2>
<p>
<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>, <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a>, <a class="link" href="GtkTreeStore.html" title="GtkTreeStore"><span class="type">GtkTreeStore</span></a>, <a class="link" href="GtkTreeSortable.html" title="GtkTreeSortable"><span class="type">GtkTreeSortable</span></a>, <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter"><span class="type">GtkTreeModelFilter</span></a>
</p>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.14</div>
</body>
</html>
|
