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790b137e RR |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: dataview.cpp | |
3 | // Purpose: wxDataViewCtrl GTK+2 implementation | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // For compilers that support precompilation, includes "wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #include "wx/defs.h" | |
14 | ||
15 | #if wxUSE_DATAVIEWCTRL | |
16 | ||
17 | #include "wx/dataview.h" | |
18 | #include "wx/stockitem.h" | |
19 | ||
20 | #include "wx/gtk/private.h" | |
21 | #include "wx/gtk/win_gtk.h" | |
22 | ||
23 | #include <gobject/gvaluecollector.h> | |
24 | #include "gtktreemodel.h" | |
25 | #include "gtktreedatalist.h" | |
26 | #include "gtktreednd.h" | |
27 | ||
28 | //----------------------------------------------------------------------------- | |
29 | // classes | |
30 | //----------------------------------------------------------------------------- | |
31 | ||
32 | class wxDataViewCtrl; | |
33 | ||
34 | //----------------------------------------------------------------------------- | |
35 | // idle system | |
36 | //----------------------------------------------------------------------------- | |
37 | ||
38 | extern void wxapp_install_idle_handler(); | |
39 | extern bool g_isIdle; | |
40 | ||
41 | //----------------------------------------------------------------------------- | |
42 | // data | |
43 | //----------------------------------------------------------------------------- | |
44 | ||
45 | extern bool g_blockEventsOnDrag; | |
46 | ||
47 | //----------------------------------------------------------------------------- | |
48 | // define new GTK+ class wxGtkListStore | |
49 | //----------------------------------------------------------------------------- | |
50 | ||
51 | extern "C" { | |
52 | ||
53 | #define GTK_TYPE_WX_LIST_STORE (gtk_wx_list_store_get_type ()) | |
54 | #define GTK_WX_LIST_STORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_WX_LIST_STORE, GtkWxListStore)) | |
55 | #define GTK_WX_LIST_STORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_WX_LIST_STORE, GtkWxListStoreClass)) | |
56 | #define GTK_IS_WX_LIST_STORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_WX_LIST_STORE)) | |
57 | #define GTK_IS_WX_LIST_STORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_WX_LIST_STORE)) | |
58 | #define GTK_WX_LIST_STORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_WX_LIST_STORE, GtkWxListStoreClass)) | |
59 | ||
60 | GType gtk_wx_list_store_get_type (void); | |
61 | ||
62 | typedef struct _GtkWxListStore GtkWxListStore; | |
63 | typedef struct _GtkWxListStoreClass GtkWxListStoreClass; | |
64 | ||
65 | struct _GtkWxListStore | |
66 | { | |
67 | GObject parent; | |
68 | ||
69 | /*< private >*/ | |
70 | gint stamp; | |
71 | wxDataViewListModel *model; | |
72 | }; | |
73 | ||
74 | struct _GtkWxListStoreClass | |
75 | { | |
76 | GObjectClass parent_class; | |
77 | ||
78 | }; | |
79 | ||
80 | static void wxgtk_list_store_init (GtkWxListStore *list_store); | |
81 | static void wxgtk_list_store_class_init (GtkWxListStoreClass *class); | |
82 | static void wxgtk_list_store_tree_model_init (GtkTreeModelIface *iface); | |
83 | static void wxgtk_list_store_finalize (GObject *object); | |
84 | static GtkTreeModelFlags wxgtk_list_store_get_flags (GtkTreeModel *tree_model); | |
85 | static gint wxgtk_list_store_get_n_columns (GtkTreeModel *tree_model); | |
86 | static GType wxgtk_list_store_get_column_type (GtkTreeModel *tree_model, | |
87 | gint index); | |
88 | static gboolean wxgtk_list_store_get_iter (GtkTreeModel *tree_model, | |
89 | GtkTreeIter *iter, | |
90 | GtkTreePath *path); | |
91 | static GtkTreePath *wxgtk_list_store_get_path (GtkTreeModel *tree_model, | |
92 | GtkTreeIter *iter); | |
93 | static void wxgtk_list_store_get_value (GtkTreeModel *tree_model, | |
94 | GtkTreeIter *iter, | |
95 | gint column, | |
96 | GValue *value); | |
97 | static gboolean wxgtk_list_store_iter_next (GtkTreeModel *tree_model, | |
98 | GtkTreeIter *iter); | |
99 | static gboolean wxgtk_list_store_iter_children (GtkTreeModel *tree_model, | |
100 | GtkTreeIter *iter, | |
101 | GtkTreeIter *parent); | |
102 | static gboolean wxgtk_list_store_iter_has_child (GtkTreeModel *tree_model, | |
103 | GtkTreeIter *iter); | |
104 | static gint wxgtk_list_store_iter_n_children (GtkTreeModel *tree_model, | |
105 | GtkTreeIter *iter); | |
106 | static gboolean wxgtk_list_store_iter_nth_child (GtkTreeModel *tree_model, | |
107 | GtkTreeIter *iter, | |
108 | GtkTreeIter *parent, | |
109 | gint n); | |
110 | static gboolean wxgtk_list_store_iter_parent (GtkTreeModel *tree_model, | |
111 | GtkTreeIter *iter, | |
112 | GtkTreeIter *child); | |
113 | ||
114 | static void gtk_list_store_set_n_columns (GtkWxListStore *list_store, | |
115 | gint n_columns); | |
116 | static void gtk_list_store_set_column_type (GtkWxListStore *list_store, | |
117 | gint column, | |
118 | GType type); | |
119 | ||
120 | static GObjectClass *parent_class = NULL; | |
121 | ||
122 | GType | |
123 | wxgtk_list_store_get_type (void) | |
124 | { | |
125 | static GType list_store_type = 0; | |
126 | ||
127 | if (!list_store_type) | |
128 | { | |
129 | static const GTypeInfo list_store_info = | |
130 | { | |
131 | sizeof (GtkWxListStoreClass), | |
132 | NULL, /* base_init */ | |
133 | NULL, /* base_finalize */ | |
134 | (GClassInitFunc) wxgtk_list_store_class_init, | |
135 | NULL, /* class_finalize */ | |
136 | NULL, /* class_data */ | |
137 | sizeof (GtkWxListStore), | |
138 | 0, | |
139 | (GInstanceInitFunc) wxgtk_list_store_init, | |
140 | }; | |
141 | ||
142 | static const GInterfaceInfo tree_model_info = | |
143 | { | |
144 | (GInterfaceInitFunc) wxgtk_list_store_tree_model_init, | |
145 | NULL, | |
146 | NULL | |
147 | }; | |
148 | ||
149 | list_store_type = g_type_register_static (G_TYPE_OBJECT, "GtkWxListStore", | |
150 | &list_store_info, 0); | |
151 | ||
152 | g_type_add_interface_static (list_store_type, | |
153 | GTK_TYPE_TREE_MODEL, | |
154 | &tree_model_info); | |
155 | } | |
156 | ||
157 | return list_store_type; | |
158 | } | |
159 | ||
160 | static void | |
161 | wxgtk_list_store_class_init (GtkWxListStoreClass *class) | |
162 | { | |
163 | GObjectClass *object_class; | |
164 | parent_class = g_type_class_peek_parent (class); | |
165 | object_class = (GObjectClass*) class; | |
166 | object_class->finalize = wxgtk_list_store_finalize; | |
167 | } | |
168 | ||
169 | static void | |
170 | wxgtk_list_store_tree_model_init (GtkTreeModelIface *iface) | |
171 | { | |
172 | iface->get_flags = wxgtk_list_store_get_flags; | |
173 | iface->get_n_columns = wxgtk_list_store_get_n_columns; | |
174 | iface->get_column_type = wxgtk_list_store_get_column_type; | |
175 | iface->get_iter = wxgtk_list_store_get_iter; | |
176 | iface->get_path = wxgtk_list_store_get_path; | |
177 | iface->get_value = wxgtk_list_store_get_value; | |
178 | iface->iter_next = wxgtk_list_store_iter_next; | |
179 | iface->iter_children = wxgtk_list_store_iter_children; | |
180 | iface->iter_has_child = wxgtk_list_store_iter_has_child; | |
181 | iface->iter_n_children = wxgtk_list_store_iter_n_children; | |
182 | iface->iter_nth_child = wxgtk_list_store_iter_nth_child; | |
183 | iface->iter_parent = wxgtk_list_store_iter_parent; | |
184 | } | |
185 | ||
186 | static void | |
187 | wxgtk_list_store_init (GtkWxListStore *list_store) | |
188 | { | |
189 | list_store->model = NULL; | |
190 | list_store->stamp = g_random_init(); | |
191 | } | |
192 | ||
193 | static void | |
194 | wxgtk_list_store_finalize (GObject *object) | |
195 | { | |
196 | GtkWxListStore *list_store = GTK_LIST_STORE (object); | |
197 | ||
198 | /* we need to sort out, which class deletes what */ | |
199 | delete model; | |
200 | ||
201 | /* must chain up */ | |
202 | (* parent_class->finalize) (object); | |
203 | } | |
204 | ||
205 | } // extern "C" | |
206 | ||
207 | //----------------------------------------------------------------------------- | |
208 | // implement callbacks from wxGtkListStore class by letting | |
209 | // them call the methods of wxWidgets' wxDataViewListModel | |
210 | //----------------------------------------------------------------------------- | |
211 | ||
212 | static GtkTreeModelFlags | |
213 | wxgtk_list_store_get_flags (GtkTreeModel *tree_model) | |
214 | { | |
215 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), 0); | |
216 | ||
67cbdfc1 RR |
217 | // GTK+ list store uses a linked list for storing the |
218 | // items and a pointer to a child is used as the member | |
219 | // field of a GtkTreeIter. This means that the iter is | |
220 | // valid in the GtkListStore as long as the child exists. | |
221 | // We use the index of the row and since the index of a | |
222 | // specific row will change if a row above is deleted, | |
223 | // the iter does not persist | |
224 | return /* GTK_TREE_MODEL_ITERS_PERSIST | */ GTK_TREE_MODEL_LIST_ONLY; | |
790b137e RR |
225 | } |
226 | ||
227 | static gint | |
228 | wxgtk_list_store_get_n_columns (GtkTreeModel *tree_model) | |
229 | { | |
230 | GtkWxListStore *list_store = (GtkWxListStore *) tree_model; | |
231 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), 0); | |
232 | ||
233 | return list_store->model->GetColumns(); | |
234 | } | |
235 | ||
236 | static GType | |
237 | wxgtk_list_store_get_column_type (GtkTreeModel *tree_model, | |
238 | gint index) | |
239 | { | |
240 | GtkWxListStore *list_store = (GtkWxListStore *) tree_model; | |
241 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), G_TYPE_INVALID); | |
242 | ||
243 | GType gtype = G_TYPE_INVALID; | |
244 | #if 0 | |
245 | list_store->model->GetColumnType( index ); | |
246 | // convert wxtype to GType | |
247 | gtype = .. | |
248 | #endif | |
249 | ||
250 | return gtype; | |
251 | } | |
252 | ||
253 | static gboolean | |
254 | wxgtk_list_store_get_iter (GtkTreeModel *tree_model, | |
255 | GtkTreeIter *iter, | |
256 | GtkTreePath *path) | |
257 | { | |
258 | GtkWxListStore *list_store = (GtkWxListStore *) tree_model; | |
259 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), FALSE); | |
260 | g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE); | |
261 | ||
262 | #if 0 | |
263 | i = gtk_tree_path_get_indices (path)[0]; | |
264 | ||
265 | if (i >= list_store->length) | |
266 | return FALSE; | |
267 | ||
268 | list = g_slist_nth (G_SLIST (list_store->root), i); | |
269 | ||
270 | /* If this fails, list_store->length has gotten mangled. */ | |
271 | g_assert (list); | |
272 | ||
273 | iter->stamp = list_store->stamp; | |
274 | iter->user_data = list; | |
275 | #endif | |
276 | ||
277 | return TRUE; | |
278 | } | |
279 | ||
280 | static GtkTreePath * | |
281 | wxgtk_list_store_get_path (GtkTreeModel *tree_model, | |
282 | GtkTreeIter *iter) | |
283 | { | |
284 | GtkWxListStore *list_store = (GtkListStore *) tree_model; | |
285 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), NULL); | |
286 | ||
287 | #if 0 | |
288 | g_return_val_if_fail (iter->stamp == GTK_WX_LIST_STORE (tree_model)->stamp, NULL); | |
289 | ||
290 | GtkTreePath *retval; | |
291 | GSList *list; | |
292 | gint i = 0; | |
293 | ||
294 | if (G_SLIST (iter->user_data) == G_SLIST (GTK_LIST_STORE (tree_model)->tail)) | |
295 | { | |
296 | retval = gtk_tree_path_new (); | |
297 | gtk_tree_path_append_index (retval, GTK_LIST_STORE (tree_model)->length - 1); | |
298 | return retval; | |
299 | } | |
300 | ||
301 | for (list = G_SLIST (GTK_LIST_STORE (tree_model)->root); list; list = list->next) | |
302 | { | |
303 | if (list == G_SLIST (iter->user_data)) | |
304 | break; | |
305 | i++; | |
306 | } | |
307 | if (list == NULL) | |
308 | return NULL; | |
309 | ||
310 | retval = gtk_tree_path_new (); | |
311 | gtk_tree_path_append_index (retval, i); | |
312 | return retval; | |
313 | #endif | |
314 | ||
315 | return NULL; | |
316 | } | |
317 | ||
318 | static void | |
319 | wxgtk_list_store_get_value (GtkTreeModel *tree_model, | |
320 | GtkTreeIter *iter, | |
321 | gint column, | |
322 | GValue *value) | |
323 | { | |
324 | GtkWxListStore *list_store = (GtkListStore *) tree_model; | |
325 | g_return_if_fail (GTK_IS_WX_LIST_STORE (tree_model) ); | |
326 | ||
327 | #if 0 | |
328 | GtkTreeDataList *list; | |
329 | gint tmp_column = column; | |
330 | ||
331 | g_return_if_fail (column < GTK_LIST_STORE (tree_model)->n_columns); | |
332 | g_return_if_fail (GTK_LIST_STORE (tree_model)->stamp == iter->stamp); | |
333 | ||
334 | list = G_SLIST (iter->user_data)->data; | |
335 | ||
336 | while (tmp_column-- > 0 && list) | |
337 | list = list->next; | |
338 | ||
339 | if (list == NULL) | |
340 | g_value_init (value, GTK_LIST_STORE (tree_model)->column_headers[column]); | |
341 | else | |
342 | _gtk_tree_data_list_node_to_value (list, | |
343 | GTK_LIST_STORE (tree_model)->column_headers[column], | |
344 | value); | |
345 | #endif | |
346 | ||
347 | } | |
348 | ||
349 | static gboolean | |
350 | wxgtk_list_store_iter_next (GtkTreeModel *tree_model, | |
351 | GtkTreeIter *iter) | |
352 | { | |
790b137e | 353 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), FALSE); |
67cbdfc1 | 354 | GtkWxListStore *list_store = (GtkListStore *) tree_model; |
790b137e | 355 | |
67cbdfc1 | 356 | g_return_val_if_fail (list_store->stamp == iter->stamp, FALSE); |
790b137e | 357 | |
67cbdfc1 RR |
358 | int n = (int) iter->user_data; |
359 | ||
360 | if (n == -1) | |
361 | return FALSE; | |
362 | ||
363 | if (n >= (int) list_store->model->GetRowCount()) | |
364 | return FALSE; | |
365 | ||
366 | iter->user_data = (gpointer) n++; | |
790b137e | 367 | |
67cbdfc1 | 368 | return TRUE; |
790b137e RR |
369 | } |
370 | ||
371 | static gboolean | |
372 | wxgtk_list_store_iter_children (GtkTreeModel *tree_model, | |
373 | GtkTreeIter *iter, | |
374 | GtkTreeIter *parent) | |
375 | { | |
67cbdfc1 RR |
376 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), FALSE); |
377 | GtkWxListStore *list_store = (GtkListStore *) tree_model; | |
378 | ||
379 | // this is a list, nodes have no children | |
790b137e RR |
380 | if (parent) |
381 | return FALSE; | |
382 | ||
67cbdfc1 RR |
383 | iter->stamp = list_store->stamp; |
384 | iter->user_data = (gpointer) -1; | |
385 | ||
386 | return TRUE; | |
790b137e RR |
387 | } |
388 | ||
389 | static gboolean | |
390 | wxgtk_list_store_iter_has_child (GtkTreeModel *tree_model, | |
391 | GtkTreeIter *iter) | |
392 | { | |
393 | return FALSE; | |
394 | } | |
395 | ||
396 | static gint | |
397 | wxgtk_list_store_iter_n_children (GtkTreeModel *tree_model, | |
398 | GtkTreeIter *iter) | |
399 | { | |
400 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), -1); | |
67cbdfc1 | 401 | GtkWxListStore *list_store = (GtkListStore *) tree_model; |
790b137e RR |
402 | |
403 | if (iter == NULL) | |
67cbdfc1 | 404 | return (gint) list_store->model->GetRowCount(); |
790b137e | 405 | |
67cbdfc1 | 406 | g_return_val_if_fail (list_store->stamp == iter->stamp, -1); |
790b137e RR |
407 | |
408 | return 0; | |
409 | } | |
410 | ||
411 | static gboolean | |
412 | wxgtk_list_store_iter_nth_child (GtkTreeModel *tree_model, | |
413 | GtkTreeIter *iter, | |
414 | GtkTreeIter *parent, | |
415 | gint n) | |
416 | { | |
67cbdfc1 RR |
417 | g_return_val_if_fail (GTK_IS_WX_LIST_STORE (tree_model), FALSE); |
418 | GtkWxListStore *list_store = (GtkListStore *) tree_model; | |
419 | ||
420 | if (parent) | |
421 | return FALSE; | |
790b137e | 422 | |
67cbdfc1 RR |
423 | if (n < 0) |
424 | return FALSE; | |
425 | ||
426 | if (n >= (gint) list_store->model->GetRowCount()) | |
427 | return FALSE; | |
790b137e | 428 | |
67cbdfc1 RR |
429 | iter->stamp = list_store->stamp; |
430 | iter->user_data = (gpointer) n; | |
431 | ||
432 | return TRUE; | |
790b137e RR |
433 | } |
434 | ||
435 | static gboolean | |
436 | wxgtk_list_store_iter_parent (GtkTreeModel *tree_model, | |
437 | GtkTreeIter *iter, | |
438 | GtkTreeIter *child) | |
439 | { | |
440 | return FALSE; | |
441 | } | |
442 | ||
443 | ||
444 | //----------------------------------------------------------------------------- | |
445 | // wxDataViewCtrl | |
446 | //----------------------------------------------------------------------------- | |
447 | ||
448 | IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl,wxControl) | |
449 | ||
450 | ||
451 | #endif // wxUSE_DATAVIEWCTRL | |
452 |