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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifdef HAVE_CONFIG_H | |
23 | #include "config.h" | |
24 | #endif | |
25 | ||
26 | #include <gtk/gtk.h> | |
27 | #include <glib/gi18n.h> | |
28 | ||
29 | #include <string.h> | |
30 | ||
31 | #include "viking.h" | |
32 | #include "config.h" | |
33 | ||
34 | #define TREEVIEW_GET(model,iter,what,dest) gtk_tree_model_get(GTK_TREE_MODEL(model),(iter),(what),(dest),-1) | |
35 | ||
36 | enum { | |
37 | VT_ITEM_EDITED_SIGNAL, | |
38 | VT_ITEM_TOGGLED_SIGNAL, | |
39 | VT_LAST_SIGNAL | |
40 | }; | |
41 | ||
42 | static guint treeview_signals[VT_LAST_SIGNAL] = { 0, 0 }; | |
43 | ||
44 | static GObjectClass *parent_class; | |
45 | ||
46 | enum | |
47 | { | |
48 | NAME_COLUMN = 0, | |
49 | VISIBLE_COLUMN, | |
50 | ICON_COLUMN, | |
51 | /* invisible */ | |
52 | ||
53 | TYPE_COLUMN, | |
54 | ITEM_PARENT_COLUMN, | |
55 | ITEM_POINTER_COLUMN, | |
56 | ITEM_DATA_COLUMN, | |
57 | HAS_VISIBLE_COLUMN, | |
58 | EDITABLE_COLUMN, | |
59 | /* properties dialog, delete, rename, etc. */ | |
60 | NUM_COLUMNS | |
61 | }; | |
62 | ||
63 | struct _VikTreeview { | |
64 | GtkTreeView treeview; | |
65 | GtkTreeModel *model; | |
66 | ||
67 | GdkPixbuf *layer_type_icons[VIK_LAYER_NUM_TYPES]; | |
68 | ||
69 | gboolean was_a_toggle; | |
70 | gboolean editing; | |
71 | }; | |
72 | ||
73 | /* TODO: find, make "static" and put up here all non-"a_" functions */ | |
74 | static void vik_treeview_finalize ( GObject *gob ); | |
75 | static void vik_treeview_add_columns ( VikTreeview *vt ); | |
76 | ||
77 | static gboolean vik_treeview_drag_data_received ( GtkTreeDragDest *drag_dest, GtkTreePath *dest, GtkSelectionData *selection_data ); | |
78 | static gboolean vik_treeview_drag_data_delete ( GtkTreeDragSource *drag_source, GtkTreePath *path ); | |
79 | ||
80 | G_DEFINE_TYPE (VikTreeview, vik_treeview, GTK_TYPE_TREE_VIEW) | |
81 | ||
82 | static void vik_cclosure_marshal_VOID__POINTER_POINTER ( GClosure *closure, | |
83 | GValue *return_value, | |
84 | guint n_param_vals, | |
85 | const GValue *param_values, | |
86 | gpointer invocation_hint, | |
87 | gpointer marshal_data ) | |
88 | { | |
89 | typedef gboolean (*VikMarshalFunc_VOID__POINTER_POINTER) ( gpointer data1, | |
90 | gconstpointer arg_1, | |
91 | gconstpointer arg_2, | |
92 | gpointer data2 ); | |
93 | ||
94 | register VikMarshalFunc_VOID__POINTER_POINTER callback; | |
95 | register GCClosure* cc = (GCClosure*) closure; | |
96 | register gpointer data1, data2; | |
97 | ||
98 | g_return_if_fail (n_param_vals == 3); | |
99 | ||
100 | if (G_CCLOSURE_SWAP_DATA(closure)) { | |
101 | data1 = closure->data; | |
102 | data2 = g_value_peek_pointer (param_values + 0); | |
103 | } | |
104 | else { | |
105 | data1 = g_value_peek_pointer (param_values + 0); | |
106 | data2 = closure->data; | |
107 | } | |
108 | callback = (VikMarshalFunc_VOID__POINTER_POINTER) (marshal_data ? marshal_data : cc->callback); | |
109 | callback ( data1, | |
110 | g_value_get_pointer(param_values + 1), | |
111 | g_value_get_pointer(param_values + 2), | |
112 | data2 ); | |
113 | } | |
114 | ||
115 | static void vik_treeview_class_init ( VikTreeviewClass *klass ) | |
116 | { | |
117 | /* Destructor */ | |
118 | GObjectClass *object_class; | |
119 | ||
120 | object_class = G_OBJECT_CLASS (klass); | |
121 | ||
122 | object_class->finalize = vik_treeview_finalize; | |
123 | ||
124 | parent_class = g_type_class_peek_parent (klass); | |
125 | ||
126 | treeview_signals[VT_ITEM_EDITED_SIGNAL] = g_signal_new ( "item_edited", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (VikTreeviewClass, item_edited), NULL, NULL, | |
127 | vik_cclosure_marshal_VOID__POINTER_POINTER, G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER); | |
128 | ||
129 | treeview_signals[VT_ITEM_TOGGLED_SIGNAL] = g_signal_new ( "item_toggled", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (VikTreeviewClass, item_toggled), NULL, NULL, | |
130 | g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER ); | |
131 | } | |
132 | ||
133 | static void vik_treeview_edited_cb (GtkCellRendererText *cell, gchar *path_str, const gchar *new_name, VikTreeview *vt) | |
134 | { | |
135 | vt->editing = FALSE; | |
136 | GtkTreeIter iter; | |
137 | ||
138 | /* get type and data */ | |
139 | vik_treeview_get_iter_from_path_str ( vt, &iter, path_str ); | |
140 | ||
141 | g_signal_emit ( G_OBJECT(vt), treeview_signals[VT_ITEM_EDITED_SIGNAL], 0, &iter, new_name ); | |
142 | } | |
143 | ||
144 | static void vik_treeview_edit_start_cb (GtkCellRenderer *cell, GtkCellEditable *editable, gchar *path, VikTreeview *vt) | |
145 | { | |
146 | vt->editing = TRUE; | |
147 | } | |
148 | ||
149 | static void vik_treeview_edit_stop_cb (GtkCellRenderer *cell, VikTreeview *vt) | |
150 | { | |
151 | vt->editing = FALSE; | |
152 | } | |
153 | ||
154 | static void vik_treeview_toggled_cb (GtkCellRendererToggle *cell, gchar *path_str, VikTreeview *vt) | |
155 | { | |
156 | GtkTreeIter iter_toggle; | |
157 | GtkTreeIter iter_selected; | |
158 | ||
159 | /* get type and data */ | |
160 | vik_treeview_get_iter_from_path_str ( vt, &iter_toggle, path_str ); | |
161 | ||
162 | GtkTreePath *tp_toggle = gtk_tree_model_get_path ( vt->model, &iter_toggle ); | |
163 | ||
164 | if ( gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), NULL, &iter_selected ) ) { | |
165 | GtkTreePath *tp_selected = gtk_tree_model_get_path ( vt->model, &iter_selected ); | |
166 | if ( gtk_tree_path_compare ( tp_toggle, tp_selected ) ) | |
167 | // Toggle set on different path | |
168 | // therefore prevent subsequent auto selection (otherwise no action needed) | |
169 | vt->was_a_toggle = TRUE; | |
170 | gtk_tree_path_free ( tp_selected ); | |
171 | } | |
172 | else | |
173 | // Toggle set on new path | |
174 | // therefore prevent subsequent auto selection | |
175 | vt->was_a_toggle = TRUE; | |
176 | ||
177 | gtk_tree_path_free ( tp_toggle ); | |
178 | ||
179 | g_signal_emit ( G_OBJECT(vt), treeview_signals[VT_ITEM_TOGGLED_SIGNAL], 0, &iter_toggle ); | |
180 | } | |
181 | ||
182 | /* Inspired by GTK+ test | |
183 | * http://git.gnome.org/browse/gtk+/tree/tests/testtooltips.c | |
184 | */ | |
185 | static gboolean | |
186 | vik_treeview_tooltip_cb (GtkWidget *widget, | |
187 | gint x, | |
188 | gint y, | |
189 | gboolean keyboard_tip, | |
190 | GtkTooltip *tooltip, | |
191 | gpointer data) | |
192 | { | |
193 | GtkTreeIter iter; | |
194 | GtkTreeView *tree_view = GTK_TREE_VIEW (widget); | |
195 | GtkTreeModel *model = gtk_tree_view_get_model (tree_view); | |
196 | GtkTreePath *path = NULL; | |
197 | ||
198 | char buffer[256]; | |
199 | ||
200 | if (!gtk_tree_view_get_tooltip_context (tree_view, &x, &y, | |
201 | keyboard_tip, | |
202 | &model, &path, &iter)) | |
203 | return FALSE; | |
204 | ||
205 | /* ATM normally treeview doesn't call into layers - maybe another level of redirection required? */ | |
206 | gint rv; | |
207 | gtk_tree_model_get (model, &iter, TYPE_COLUMN, &rv, -1); | |
208 | if ( rv == VIK_TREEVIEW_TYPE_SUBLAYER ) { | |
209 | ||
210 | gtk_tree_model_get (model, &iter, ITEM_DATA_COLUMN, &rv, -1); | |
211 | ||
212 | gpointer sublayer; | |
213 | gtk_tree_model_get (model, &iter, ITEM_POINTER_COLUMN, &sublayer, -1); | |
214 | ||
215 | gpointer parent; | |
216 | gtk_tree_model_get (model, &iter, ITEM_PARENT_COLUMN, &parent, -1); | |
217 | ||
218 | g_snprintf (buffer, sizeof(buffer), "%s", vik_layer_sublayer_tooltip (VIK_LAYER(parent), rv, sublayer)); | |
219 | } | |
220 | else if ( rv == VIK_TREEVIEW_TYPE_LAYER ) { | |
221 | gpointer layer; | |
222 | gtk_tree_model_get (model, &iter, ITEM_POINTER_COLUMN, &layer, -1); | |
223 | g_snprintf (buffer, sizeof(buffer), "%s", vik_layer_layer_tooltip (VIK_LAYER(layer))); | |
224 | } | |
225 | else { | |
226 | gtk_tree_path_free (path); | |
227 | return FALSE; | |
228 | } | |
229 | ||
230 | // Don't display null strings :) | |
231 | if ( strncmp (buffer, "(null)", 6) == 0 ) { | |
232 | gtk_tree_path_free (path); | |
233 | return FALSE; | |
234 | } | |
235 | else { | |
236 | // No point in using (Pango) markup verson - gtk_tooltip_set_markup() | |
237 | // especially as waypoint comments may well contain HTML markup which confuses the pango markup parser | |
238 | // This plain text is probably faster too. | |
239 | gtk_tooltip_set_text (tooltip, buffer); | |
240 | } | |
241 | ||
242 | gtk_tree_view_set_tooltip_row (tree_view, tooltip, path); | |
243 | ||
244 | gtk_tree_path_free (path); | |
245 | ||
246 | return TRUE; | |
247 | } | |
248 | ||
249 | VikTreeview *vik_treeview_new () | |
250 | { | |
251 | return VIK_TREEVIEW ( g_object_new ( VIK_TREEVIEW_TYPE, NULL ) ); | |
252 | } | |
253 | ||
254 | gint vik_treeview_item_get_type ( VikTreeview *vt, GtkTreeIter *iter ) | |
255 | { | |
256 | gint rv; | |
257 | TREEVIEW_GET ( vt->model, iter, TYPE_COLUMN, &rv ); | |
258 | return rv; | |
259 | } | |
260 | ||
261 | gchar* vik_treeview_item_get_name ( VikTreeview *vt, GtkTreeIter *iter ) | |
262 | { | |
263 | gchar *rv; | |
264 | TREEVIEW_GET ( vt->model, iter, NAME_COLUMN, &rv ); | |
265 | return rv; | |
266 | } | |
267 | ||
268 | gint vik_treeview_item_get_data ( VikTreeview *vt, GtkTreeIter *iter ) | |
269 | { | |
270 | gint rv; | |
271 | TREEVIEW_GET ( vt->model, iter, ITEM_DATA_COLUMN, &rv ); | |
272 | return rv; | |
273 | } | |
274 | ||
275 | gpointer vik_treeview_item_get_pointer ( VikTreeview *vt, GtkTreeIter *iter ) | |
276 | { | |
277 | gpointer rv; | |
278 | TREEVIEW_GET ( vt->model, iter, ITEM_POINTER_COLUMN, &rv ); | |
279 | return rv; | |
280 | } | |
281 | ||
282 | void vik_treeview_item_set_pointer ( VikTreeview *vt, GtkTreeIter *iter, gpointer pointer ) | |
283 | { | |
284 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, ITEM_POINTER_COLUMN, pointer, -1 ); | |
285 | } | |
286 | ||
287 | gpointer vik_treeview_item_get_parent ( VikTreeview *vt, GtkTreeIter *iter ) | |
288 | { | |
289 | gpointer rv; | |
290 | TREEVIEW_GET ( vt->model, iter, ITEM_PARENT_COLUMN, &rv ); | |
291 | return rv; | |
292 | } | |
293 | ||
294 | gboolean vik_treeview_get_iter_from_path_str ( VikTreeview *vt, GtkTreeIter *iter, const gchar *path_str ) | |
295 | { | |
296 | return gtk_tree_model_get_iter_from_string ( GTK_TREE_MODEL(vt->model), iter, path_str ); | |
297 | } | |
298 | ||
299 | static void vik_treeview_add_columns ( VikTreeview *vt ) | |
300 | { | |
301 | gint col_offset; | |
302 | GtkCellRenderer *renderer; | |
303 | GtkTreeViewColumn *column; | |
304 | ||
305 | /* Layer column */ | |
306 | renderer = gtk_cell_renderer_text_new (); | |
307 | g_signal_connect (renderer, "edited", | |
308 | G_CALLBACK (vik_treeview_edited_cb), vt); | |
309 | ||
310 | g_signal_connect (renderer, "editing-started", G_CALLBACK (vik_treeview_edit_start_cb), vt); | |
311 | g_signal_connect (renderer, "editing-canceled", G_CALLBACK (vik_treeview_edit_stop_cb), vt); | |
312 | ||
313 | g_object_set (G_OBJECT (renderer), "xalign", 0.0, "ellipsize", PANGO_ELLIPSIZE_END, NULL); | |
314 | ||
315 | col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (vt), | |
316 | -1, _("Layer Name"), | |
317 | renderer, "text", | |
318 | NAME_COLUMN, | |
319 | "editable", EDITABLE_COLUMN, | |
320 | NULL); | |
321 | ||
322 | /* ATM the minimum overall width (and starting default) of the treeview size is determined | |
323 | by the buttons added to the bottom of the layerspanel */ | |
324 | column = gtk_tree_view_get_column (GTK_TREE_VIEW (vt), col_offset - 1); | |
325 | gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), | |
326 | GTK_TREE_VIEW_COLUMN_FIXED); | |
327 | gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE); | |
328 | ||
329 | /* Layer type */ | |
330 | renderer = gtk_cell_renderer_pixbuf_new (); | |
331 | ||
332 | g_object_set (G_OBJECT (renderer), "xalign", 0.5, NULL); | |
333 | ||
334 | col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (vt), | |
335 | -1, "", | |
336 | renderer, "pixbuf", | |
337 | ICON_COLUMN, | |
338 | NULL); | |
339 | ||
340 | column = gtk_tree_view_get_column (GTK_TREE_VIEW (vt), col_offset - 1); | |
341 | gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), | |
342 | GTK_TREE_VIEW_COLUMN_AUTOSIZE); | |
343 | ||
344 | /* Layer visible */ | |
345 | renderer = gtk_cell_renderer_toggle_new (); | |
346 | g_object_set (G_OBJECT (renderer), "xalign", 0.5, NULL); | |
347 | ||
348 | g_signal_connect (renderer, "toggled", G_CALLBACK (vik_treeview_toggled_cb), vt); | |
349 | ||
350 | col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (vt), | |
351 | -1, "", | |
352 | renderer, | |
353 | "active", | |
354 | VISIBLE_COLUMN, | |
355 | "visible", | |
356 | HAS_VISIBLE_COLUMN, | |
357 | "activatable", | |
358 | HAS_VISIBLE_COLUMN, | |
359 | NULL); | |
360 | ||
361 | column = gtk_tree_view_get_column (GTK_TREE_VIEW (vt), col_offset - 1); | |
362 | gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), | |
363 | GTK_TREE_VIEW_COLUMN_AUTOSIZE); | |
364 | ||
365 | ||
366 | g_object_set (GTK_TREE_VIEW (vt), "has-tooltip", TRUE, NULL); | |
367 | g_signal_connect (GTK_TREE_VIEW (vt), "query-tooltip", G_CALLBACK (vik_treeview_tooltip_cb), vt); | |
368 | } | |
369 | ||
370 | static void select_cb(GtkTreeSelection *selection, gpointer data) | |
371 | { | |
372 | VikTreeview *vt = data; | |
373 | gint type; | |
374 | GtkTreeIter iter, parent; | |
375 | VikLayer *vl; | |
376 | VikWindow * vw; | |
377 | ||
378 | gpointer tmp_layer; | |
379 | VikLayer *tmp_vl = NULL; | |
380 | gint tmp_subtype = 0; | |
381 | gint tmp_type = VIK_TREEVIEW_TYPE_LAYER; | |
382 | ||
383 | if (!gtk_tree_selection_get_selected(selection, NULL, &iter)) return; | |
384 | type = vik_treeview_item_get_type( vt, &iter); | |
385 | ||
386 | /* Find the Sublayer type if possible */ | |
387 | tmp_layer = vik_treeview_item_get_pointer ( vt, &iter ); | |
388 | if (tmp_layer) { | |
389 | if (type == VIK_TREEVIEW_TYPE_SUBLAYER) { | |
390 | tmp_vl = VIK_LAYER(vik_treeview_item_get_parent(vt, &iter)); | |
391 | tmp_subtype = vik_treeview_item_get_data(vt, &iter); | |
392 | tmp_type = VIK_TREEVIEW_TYPE_SUBLAYER; | |
393 | } | |
394 | } | |
395 | else { | |
396 | tmp_subtype = vik_treeview_item_get_data(vt, &iter); | |
397 | tmp_type = VIK_TREEVIEW_TYPE_SUBLAYER; | |
398 | } | |
399 | ||
400 | /* Go up the tree to find the Vik Layer */ | |
401 | while ( type != VIK_TREEVIEW_TYPE_LAYER ) { | |
402 | if ( ! vik_treeview_item_get_parent_iter ( vt, &iter, &parent ) ) | |
403 | return; | |
404 | iter = parent; | |
405 | type = vik_treeview_item_get_type (vt, &iter ); | |
406 | } | |
407 | ||
408 | vl = VIK_LAYER( vik_treeview_item_get_pointer ( vt, &iter ) ); | |
409 | ||
410 | vw = VIK_WINDOW(VIK_GTK_WINDOW_FROM_LAYER(vl)); | |
411 | vik_window_selected_layer(vw, vl); | |
412 | ||
413 | if (tmp_vl == NULL) | |
414 | tmp_vl = vl; | |
415 | /* Apply settings now we have the all details */ | |
416 | if ( vik_layer_selected ( tmp_vl, | |
417 | tmp_subtype, | |
418 | tmp_layer, | |
419 | tmp_type, | |
420 | vik_window_layers_panel(vw) ) ) { | |
421 | /* Redraw required */ | |
422 | vik_layers_panel_emit_update ( vik_window_layers_panel(vw) ); | |
423 | } | |
424 | ||
425 | } | |
426 | ||
427 | static gboolean vik_treeview_selection_filter(GtkTreeSelection *selection, GtkTreeModel *model, GtkTreePath *path, gboolean path_currently_selected, gpointer data) | |
428 | { | |
429 | VikTreeview *vt = data; | |
430 | ||
431 | if (vt->was_a_toggle) { | |
432 | vt->was_a_toggle = FALSE; | |
433 | return FALSE; | |
434 | } | |
435 | ||
436 | return TRUE; | |
437 | } | |
438 | ||
439 | void vik_treeview_init ( VikTreeview *vt ) | |
440 | { | |
441 | vt->was_a_toggle = FALSE; | |
442 | vt->editing = FALSE; | |
443 | ||
444 | vt->model = GTK_TREE_MODEL(gtk_tree_store_new ( NUM_COLUMNS, G_TYPE_STRING, G_TYPE_BOOLEAN, GDK_TYPE_PIXBUF, G_TYPE_INT, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_INT, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN )); | |
445 | ||
446 | /* create tree view */ | |
447 | gtk_tree_selection_set_select_function(gtk_tree_view_get_selection (GTK_TREE_VIEW(vt)), vik_treeview_selection_filter, vt, NULL); | |
448 | ||
449 | gtk_tree_view_set_model ( GTK_TREE_VIEW(vt), vt->model ); | |
450 | vik_treeview_add_columns ( vt ); | |
451 | ||
452 | // Can not specify 'auto' sort order with a 'GtkTreeSortable' on the name since we want to control the ordering of layers | |
453 | // Thus need to create special sort to operate on a subsection of treeview (i.e. from a specific child either a layer or sublayer) | |
454 | // see vik_treeview_sort_children() | |
455 | ||
456 | g_object_unref (vt->model); | |
457 | ||
458 | gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (vt), TRUE); | |
459 | gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (vt)), | |
460 | GTK_SELECTION_SINGLE); | |
461 | ||
462 | /* Override treestore's dnd methods only; this is easier than deriving from GtkTreeStore. | |
463 | * The downside is that all treestores will have this behavior, so this needs to be | |
464 | * changed if we add more treeviews in the future. //Alex | |
465 | */ | |
466 | if (1) { | |
467 | GtkTreeDragSourceIface *isrc; | |
468 | GtkTreeDragDestIface *idest; | |
469 | ||
470 | isrc = g_type_interface_peek (g_type_class_peek(G_OBJECT_TYPE(vt->model)), GTK_TYPE_TREE_DRAG_SOURCE); | |
471 | isrc->drag_data_delete = vik_treeview_drag_data_delete; | |
472 | ||
473 | idest = g_type_interface_peek (g_type_class_peek(G_OBJECT_TYPE(vt->model)), GTK_TYPE_TREE_DRAG_DEST); | |
474 | idest->drag_data_received = vik_treeview_drag_data_received; | |
475 | } | |
476 | ||
477 | VikLayerTypeEnum i; | |
478 | for ( i = 0; i < VIK_LAYER_NUM_TYPES; i++ ) | |
479 | vt->layer_type_icons[i] = vik_layer_load_icon ( i ); /* if icon can't be loaded, it will be null and simply not be shown. */ | |
480 | ||
481 | gtk_tree_view_set_reorderable (GTK_TREE_VIEW(vt), TRUE); | |
482 | g_signal_connect(gtk_tree_view_get_selection (GTK_TREE_VIEW (vt)), "changed", | |
483 | G_CALLBACK(select_cb), vt); | |
484 | ||
485 | } | |
486 | ||
487 | gboolean vik_treeview_item_get_parent_iter ( VikTreeview *vt, GtkTreeIter *iter, GtkTreeIter *parent ) | |
488 | { | |
489 | return gtk_tree_model_iter_parent ( GTK_TREE_MODEL(vt->model), parent, iter ); | |
490 | } | |
491 | ||
492 | gboolean vik_treeview_move_item ( VikTreeview *vt, GtkTreeIter *iter, gboolean up ) | |
493 | { | |
494 | gint t = vik_treeview_item_get_type ( vt, iter ); | |
495 | if ( t == VIK_TREEVIEW_TYPE_LAYER ) | |
496 | { | |
497 | GtkTreeIter switch_iter; | |
498 | if (up) | |
499 | { | |
500 | /* iter to path to iter */ | |
501 | GtkTreePath *path = gtk_tree_model_get_path ( vt->model, iter ); | |
502 | if ( !gtk_tree_path_prev ( path ) || !gtk_tree_model_get_iter ( vt->model, &switch_iter, path ) ) | |
503 | { | |
504 | gtk_tree_path_free ( path ); | |
505 | return FALSE; | |
506 | } | |
507 | gtk_tree_path_free ( path ); | |
508 | } | |
509 | else | |
510 | { | |
511 | switch_iter = *iter; | |
512 | if ( !gtk_tree_model_iter_next ( vt->model, &switch_iter ) ) | |
513 | return FALSE; | |
514 | } | |
515 | gtk_tree_store_swap ( GTK_TREE_STORE(vt->model), iter, &switch_iter ); | |
516 | return TRUE; | |
517 | /* now, the easy part. actually switching them, not the GUI */ | |
518 | } /* if item is map */ | |
519 | return FALSE; | |
520 | } | |
521 | ||
522 | gboolean vik_treeview_get_iter_at_pos ( VikTreeview *vt, GtkTreeIter *iter, gint x, gint y ) | |
523 | { | |
524 | GtkTreePath *path; | |
525 | gtk_tree_view_get_path_at_pos ( GTK_TREE_VIEW(vt), x, y, &path, NULL, NULL, NULL ); | |
526 | if ( ! path ) | |
527 | return FALSE; | |
528 | ||
529 | gtk_tree_model_get_iter (GTK_TREE_MODEL(vt->model), iter, path); | |
530 | gtk_tree_path_free ( path ); | |
531 | return TRUE; | |
532 | } | |
533 | ||
534 | /* Option to ensure visible */ | |
535 | void vik_treeview_select_iter ( VikTreeview *vt, GtkTreeIter *iter, gboolean view_all ) | |
536 | { | |
537 | GtkTreeView *tree_view = GTK_TREE_VIEW ( vt ); | |
538 | GtkTreePath *path; | |
539 | ||
540 | if ( view_all ) { | |
541 | path = gtk_tree_model_get_path ( gtk_tree_view_get_model (tree_view), iter ); | |
542 | gtk_tree_view_expand_to_path ( tree_view, path ); | |
543 | } | |
544 | ||
545 | gtk_tree_selection_select_iter ( gtk_tree_view_get_selection ( tree_view ), iter ); | |
546 | ||
547 | if ( view_all ) { | |
548 | gtk_tree_view_scroll_to_cell ( tree_view, | |
549 | path, | |
550 | gtk_tree_view_get_expander_column (tree_view), | |
551 | FALSE, | |
552 | 0.0, 0.0 ); | |
553 | gtk_tree_path_free ( path ); | |
554 | } | |
555 | } | |
556 | ||
557 | gboolean vik_treeview_get_selected_iter ( VikTreeview *vt, GtkTreeIter *iter ) | |
558 | { | |
559 | return gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), NULL, iter ); | |
560 | } | |
561 | ||
562 | gboolean vik_treeview_get_editing ( VikTreeview *vt ) | |
563 | { | |
564 | // Don't know how to get cell for the selected item | |
565 | //return GPOINTER_TO_INT(g_object_get_data ( G_OBJECT(cell), "editing" )); | |
566 | // Instead maintain our own value applying to the whole tree | |
567 | return vt->editing; | |
568 | } | |
569 | ||
570 | void vik_treeview_item_delete ( VikTreeview *vt, GtkTreeIter *iter ) | |
571 | { | |
572 | gtk_tree_store_remove ( GTK_TREE_STORE(vt->model), iter ); | |
573 | } | |
574 | ||
575 | /* Treeview Reform Project */ | |
576 | ||
577 | void vik_treeview_item_set_icon ( VikTreeview *vt, GtkTreeIter *iter, const GdkPixbuf *icon ) | |
578 | { | |
579 | g_return_if_fail ( iter != NULL ); | |
580 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, ICON_COLUMN, icon, -1); | |
581 | } | |
582 | ||
583 | void vik_treeview_item_set_name ( VikTreeview *vt, GtkTreeIter *iter, const gchar *to ) | |
584 | { | |
585 | g_return_if_fail ( iter != NULL && to != NULL ); | |
586 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, to, -1); | |
587 | } | |
588 | ||
589 | void vik_treeview_item_set_visible ( VikTreeview *vt, GtkTreeIter *iter, gboolean to ) | |
590 | { | |
591 | g_return_if_fail ( iter != NULL ); | |
592 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, VISIBLE_COLUMN, to, -1 ); | |
593 | } | |
594 | ||
595 | void vik_treeview_item_toggle_visible ( VikTreeview *vt, GtkTreeIter *iter ) | |
596 | { | |
597 | g_return_if_fail ( iter != NULL ); | |
598 | gboolean to; | |
599 | TREEVIEW_GET ( vt->model, iter, VISIBLE_COLUMN, &to ); | |
600 | to = !to; | |
601 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, VISIBLE_COLUMN, to, -1 ); | |
602 | } | |
603 | ||
604 | void vik_treeview_expand ( VikTreeview *vt, GtkTreeIter *iter ) | |
605 | { | |
606 | GtkTreePath *path; | |
607 | path = gtk_tree_model_get_path ( vt->model, iter ); | |
608 | gtk_tree_view_expand_row ( GTK_TREE_VIEW(vt), path, FALSE ); | |
609 | gtk_tree_path_free ( path ); | |
610 | } | |
611 | ||
612 | void vik_treeview_item_select ( VikTreeview *vt, GtkTreeIter *iter ) | |
613 | { | |
614 | gtk_tree_selection_select_iter ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), iter ); | |
615 | } | |
616 | ||
617 | void vik_treeview_item_unselect ( VikTreeview *vt, GtkTreeIter *iter ) | |
618 | { | |
619 | gtk_tree_selection_unselect_iter ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), iter ); | |
620 | } | |
621 | ||
622 | void vik_treeview_add_layer ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent, gboolean above, | |
623 | gpointer item, gint data, VikLayerTypeEnum layer_type ) | |
624 | { | |
625 | g_assert ( iter != NULL ); | |
626 | if ( above ) | |
627 | gtk_tree_store_prepend ( GTK_TREE_STORE(vt->model), iter, parent_iter ); | |
628 | else | |
629 | gtk_tree_store_append ( GTK_TREE_STORE(vt->model), iter, parent_iter ); | |
630 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE, | |
631 | TYPE_COLUMN, VIK_TREEVIEW_TYPE_LAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item, | |
632 | ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, TRUE, EDITABLE_COLUMN, parent == NULL ? FALSE : TRUE, | |
633 | ICON_COLUMN, layer_type >= 0 ? vt->layer_type_icons[layer_type] : NULL, -1 ); | |
634 | } | |
635 | ||
636 | void vik_treeview_insert_layer ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent, gboolean above, | |
637 | gpointer item, gint data, VikLayerTypeEnum layer_type, GtkTreeIter *sibling ) | |
638 | { | |
639 | g_assert ( iter != NULL ); | |
640 | if (sibling) { | |
641 | if (above) | |
642 | gtk_tree_store_insert_before ( GTK_TREE_STORE(vt->model), iter, parent_iter, sibling ); | |
643 | else | |
644 | gtk_tree_store_insert_after ( GTK_TREE_STORE(vt->model), iter, parent_iter, sibling ); | |
645 | } else { | |
646 | if (above) | |
647 | gtk_tree_store_append ( GTK_TREE_STORE(vt->model), iter, parent_iter ); | |
648 | else | |
649 | gtk_tree_store_prepend ( GTK_TREE_STORE(vt->model), iter, parent_iter ); | |
650 | } | |
651 | ||
652 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE, | |
653 | TYPE_COLUMN, VIK_TREEVIEW_TYPE_LAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item, | |
654 | ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, TRUE, EDITABLE_COLUMN, TRUE, | |
655 | ICON_COLUMN, layer_type >= 0 ? vt->layer_type_icons[layer_type] : NULL, -1 ); | |
656 | } | |
657 | ||
658 | void vik_treeview_add_sublayer ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent, gpointer item, | |
659 | gint data, GdkPixbuf *icon, gboolean has_visible, gboolean editable ) | |
660 | { | |
661 | g_assert ( iter != NULL ); | |
662 | ||
663 | gtk_tree_store_append ( GTK_TREE_STORE(vt->model), iter, parent_iter ); | |
664 | gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE, TYPE_COLUMN, VIK_TREEVIEW_TYPE_SUBLAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item, ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, has_visible, EDITABLE_COLUMN, editable, ICON_COLUMN, icon, -1 ); | |
665 | } | |
666 | ||
667 | // Inspired by the internals of GtkTreeView sorting itself | |
668 | typedef struct _SortTuple | |
669 | { | |
670 | gint offset; | |
671 | gchar *name; | |
672 | } SortTuple; | |
673 | ||
674 | /** | |
675 | * If order is true sort ascending, otherwise a descending sort | |
676 | */ | |
677 | static gint sort_tuple_compare ( gconstpointer a, gconstpointer b, gpointer order ) | |
678 | { | |
679 | SortTuple *sa = (SortTuple *)a; | |
680 | SortTuple *sb = (SortTuple *)b; | |
681 | ||
682 | // Default ascending order | |
683 | gint answer = g_strcmp0 ( sa->name, sb->name ); | |
684 | ||
685 | if ( !GPOINTER_TO_INT(order) ) { | |
686 | // Invert sort order for descending order | |
687 | answer = -answer; | |
688 | } | |
689 | ||
690 | return answer; | |
691 | } | |
692 | ||
693 | /** | |
694 | * Note: I don't believe we can sensibility use built in model sort gtk_tree_model_sort_new_with_model() on the name, | |
695 | * since that would also sort the layers - but that needs to be user controlled for ordering, such as which maps get drawn on top. | |
696 | * | |
697 | * vik_treeview_sort_children: | |
698 | * @vt: The treeview to operate on | |
699 | * @parent: The level within the treeview to sort | |
700 | * @order: How the items should be sorted | |
701 | * | |
702 | * Use the gtk_tree_store_reorder method as it very quick | |
703 | * | |
704 | * This ordering can be performed on demand and works for any parent iterator (i.e. both sublayer and layer levels) | |
705 | * | |
706 | * It should be called whenever an individual sublayer item is added or renamed (or after a group of sublayer items have been added). | |
707 | * | |
708 | * Previously with insertion sort on every sublayer addition: adding 10,000 items would take over 30 seconds! | |
709 | * Now sorting after simply adding all tracks takes 1 second. | |
710 | * For a KML file with over 10,000 tracks (3Mb zipped) - See 'UK Hampshire Rights of Way' | |
711 | * http://www3.hants.gov.uk/row/row-maps.htm | |
712 | */ | |
713 | void vik_treeview_sort_children ( VikTreeview *vt, GtkTreeIter *parent, vik_layer_sort_order_t order ) | |
714 | { | |
715 | if ( order == VL_SO_NONE ) | |
716 | // Nothing to do | |
717 | return; | |
718 | ||
719 | GtkTreeModel *model = vt->model; | |
720 | GtkTreeIter child; | |
721 | if ( !gtk_tree_model_iter_children ( model, &child, parent ) ) | |
722 | return; | |
723 | ||
724 | guint length = gtk_tree_model_iter_n_children ( model, parent ); | |
725 | ||
726 | // Create an array to store the position offsets | |
727 | SortTuple *sort_array; | |
728 | sort_array = g_new ( SortTuple, length ); | |
729 | ||
730 | guint ii = 0; | |
731 | do { | |
732 | sort_array[ii].offset = ii; | |
733 | gtk_tree_model_get ( model, &child, NAME_COLUMN, &(sort_array[ii].name), -1 ); | |
734 | ii++; | |
735 | } while ( gtk_tree_model_iter_next (model, &child) ); | |
736 | ||
737 | gboolean sort_order = (order == VL_SO_ALPHABETICAL_ASCENDING ); | |
738 | ||
739 | // Sort list... | |
740 | g_qsort_with_data (sort_array, | |
741 | length, | |
742 | sizeof (SortTuple), | |
743 | sort_tuple_compare, | |
744 | GINT_TO_POINTER(sort_order)); | |
745 | ||
746 | // As the sorted list contains the reordered position offsets, extract this and then apply to the treeview | |
747 | gint *positions = g_malloc ( sizeof(gdouble) * length ); | |
748 | for ( ii = 0; ii < length; ii++ ) { | |
749 | positions[ii] = sort_array[ii].offset; | |
750 | g_free ( sort_array[ii].name ); | |
751 | } | |
752 | g_free ( sort_array ); | |
753 | ||
754 | // This is extremely fast compared to the old alphabetical insertion | |
755 | gtk_tree_store_reorder ( GTK_TREE_STORE(model), parent, positions ); | |
756 | g_free ( positions ); | |
757 | } | |
758 | ||
759 | static void vik_treeview_finalize ( GObject *gob ) | |
760 | { | |
761 | VikTreeview *vt = VIK_TREEVIEW ( gob ); | |
762 | VikLayerTypeEnum i; | |
763 | for ( i = 0; i < VIK_LAYER_NUM_TYPES; i++ ) | |
764 | if ( vt->layer_type_icons[i] != NULL ) | |
765 | g_object_unref ( G_OBJECT(vt->layer_type_icons[i]) ); | |
766 | ||
767 | G_OBJECT_CLASS(parent_class)->finalize(gob); | |
768 | } | |
769 | ||
770 | static gboolean vik_treeview_drag_data_received (GtkTreeDragDest *drag_dest, GtkTreePath *dest, GtkSelectionData *selection_data) | |
771 | { | |
772 | GtkTreeModel *tree_model; | |
773 | GtkTreeModel *src_model = NULL; | |
774 | GtkTreePath *src_path = NULL, *dest_cp = NULL; | |
775 | gboolean retval = FALSE; | |
776 | GtkTreeIter src_iter, root_iter, dest_parent; | |
777 | VikTreeview *vt; | |
778 | VikLayer *vl; | |
779 | ||
780 | g_return_val_if_fail (GTK_IS_TREE_STORE (drag_dest), FALSE); | |
781 | ||
782 | tree_model = GTK_TREE_MODEL (drag_dest); | |
783 | ||
784 | if (gtk_tree_get_row_drag_data (selection_data, &src_model, &src_path) && src_model == tree_model) { | |
785 | /* | |
786 | * Copy src_path to dest. There are two subcases here, depending on what | |
787 | * is being dragged. | |
788 | * | |
789 | * 1. src_path is a layer. In this case, interpret the drop | |
790 | * as a request to move the layer to a different aggregate layer. | |
791 | * If the destination is not an aggregate layer, use the first | |
792 | * ancestor that is. | |
793 | * | |
794 | * 2. src_path is a sublayer. In this case, find ancestors of | |
795 | * both source and destination nodes who are full layers, | |
796 | * and call the move method of that layer type. | |
797 | * | |
798 | */ | |
799 | if (!gtk_tree_model_get_iter (src_model, &src_iter, src_path)) { | |
800 | goto out; | |
801 | } | |
802 | if (!gtk_tree_path_compare(src_path, dest)) { | |
803 | goto out; | |
804 | } | |
805 | ||
806 | dest_cp = gtk_tree_path_copy (dest); | |
807 | ||
808 | gtk_tree_model_get_iter_first(tree_model, &root_iter); | |
809 | TREEVIEW_GET(tree_model, &root_iter, ITEM_POINTER_COLUMN, &vl); | |
810 | vt = vl->vt; | |
811 | ||
812 | ||
813 | if (gtk_tree_path_get_depth(dest_cp)>1) { /* can't be sibling of top layer */ | |
814 | VikLayer *vl_src, *vl_dest; | |
815 | ||
816 | /* Find the first ancestor that is a full layer, and store in dest_parent. */ | |
817 | do { | |
818 | gtk_tree_path_up(dest_cp); | |
819 | gtk_tree_model_get_iter (src_model, &dest_parent, dest_cp); | |
820 | } while (gtk_tree_path_get_depth(dest_cp)>1 && | |
821 | vik_treeview_item_get_type(vt, &dest_parent) != VIK_TREEVIEW_TYPE_LAYER); | |
822 | ||
823 | ||
824 | g_assert ( vik_treeview_item_get_parent(vt, &src_iter) ); | |
825 | vl_src = vik_treeview_item_get_parent(vt, &src_iter); | |
826 | vl_dest = vik_treeview_item_get_pointer(vt, &dest_parent); | |
827 | ||
828 | /* TODO: might want to allow different types, and let the clients handle how they want */ | |
829 | if (vl_src->type == vl_dest->type && vik_layer_get_interface(vl_dest->type)->drag_drop_request) { | |
830 | // g_print("moving an item from layer '%s' into layer '%s'\n", vl_src->name, vl_dest->name); | |
831 | vik_layer_get_interface(vl_dest->type)->drag_drop_request(vl_src, vl_dest, &src_iter, dest); | |
832 | } | |
833 | } | |
834 | } | |
835 | ||
836 | out: | |
837 | if (dest_cp) | |
838 | gtk_tree_path_free(dest_cp); | |
839 | if (src_path) | |
840 | gtk_tree_path_free (src_path); | |
841 | ||
842 | return retval; | |
843 | } | |
844 | ||
845 | /* | |
846 | * This may not be necessary. | |
847 | */ | |
848 | static gboolean vik_treeview_drag_data_delete ( GtkTreeDragSource *drag_source, GtkTreePath *path ) | |
849 | { | |
850 | gchar *s_dest = gtk_tree_path_to_string(path); | |
851 | g_print(_("delete data from %s\n"), s_dest); | |
852 | g_free(s_dest); | |
853 | return FALSE; | |
854 | } |