2 * This program is based on gtkflist.c
8 #include "sylpheed-marshal.h"
20 static void gtk_sctree_class_init (GtkSCTreeClass *class);
21 static void gtk_sctree_init (GtkSCTree *sctree);
23 static gint gtk_sctree_button_press (GtkWidget *widget, GdkEventButton *event);
24 static gint gtk_sctree_button_release (GtkWidget *widget, GdkEventButton *event);
25 static gint gtk_sctree_motion (GtkWidget *widget, GdkEventMotion *event);
26 static void gtk_sctree_drag_begin (GtkWidget *widget, GdkDragContext *context);
27 static void gtk_sctree_drag_end (GtkWidget *widget, GdkDragContext *context);
28 static void gtk_sctree_drag_data_get (GtkWidget *widget, GdkDragContext *context,
29 GtkSelectionData *data, guint info, guint time);
30 static void gtk_sctree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time);
31 static gboolean gtk_sctree_drag_motion (GtkWidget *widget, GdkDragContext *context,
32 gint x, gint y, guint time);
33 static gboolean gtk_sctree_drag_drop (GtkWidget *widget, GdkDragContext *context,
34 gint x, gint y, guint time);
35 static void gtk_sctree_drag_data_received (GtkWidget *widget, GdkDragContext *context,
36 gint x, gint y, GtkSelectionData *data,
37 guint info, guint time);
39 static void gtk_sctree_clear (GtkCList *clist);
40 static void gtk_sctree_collapse (GtkCTree *ctree, GtkCTreeNode *node);
42 static void tree_sort (GtkCTree *ctree, GtkCTreeNode *node, gpointer data);
43 void gtk_sctree_sort_node (GtkCTree *ctree, GtkCTreeNode *node);
44 void gtk_sctree_sort_recursive (GtkCTree *ctree, GtkCTreeNode *node);
46 static void gtk_ctree_link (GtkCTree *ctree,
49 GtkCTreeNode *sibling,
50 gboolean update_focus_row);
52 static void gtk_ctree_unlink (GtkCTree *ctree,
54 gboolean update_focus_row);
56 static void tree_update_level (GtkCTree *ctree,
60 static GtkCTreeNode * gtk_ctree_last_visible (GtkCTree *ctree,
63 static GtkCTreeClass *parent_class;
65 static guint sctree_signals[LAST_SIGNAL];
69 * gtk_sctree_get_type:
72 * Creates the GtkSCTree class and its type information
74 * Return value: The type ID for GtkSCTreeClass
77 gtk_sctree_get_type (void)
79 static GType sctree_type = 0;
82 GTypeInfo sctree_info = {
83 sizeof (GtkSCTreeClass),
86 (GBaseFinalizeFunc) NULL,
88 (GClassInitFunc) gtk_sctree_class_init,
89 (GClassFinalizeFunc) NULL,
90 NULL, /* class_data */
94 (GInstanceInitFunc) gtk_sctree_init,
97 sctree_type = g_type_register_static (GTK_TYPE_CTREE, "GtkSCTree", &sctree_info, (GTypeFlags)0);
103 /* Standard class initialization function */
105 gtk_sctree_class_init (GtkSCTreeClass *klass)
107 GtkObjectClass *object_class;
108 GtkWidgetClass *widget_class;
109 GtkCListClass *clist_class;
110 GtkCTreeClass *ctree_class;
112 object_class = (GtkObjectClass *) klass;
113 widget_class = (GtkWidgetClass *) klass;
114 clist_class = (GtkCListClass *) klass;
115 ctree_class = (GtkCTreeClass *) klass;
117 parent_class = gtk_type_class (gtk_ctree_get_type ());
119 sctree_signals[ROW_POPUP_MENU] =
120 g_signal_new ("row_popup_menu",
121 G_TYPE_FROM_CLASS (klass),
123 G_STRUCT_OFFSET (GtkSCTreeClass, row_popup_menu),
125 sylpheed_marshal_VOID__POINTER,
128 sctree_signals[EMPTY_POPUP_MENU] =
129 g_signal_new ("empty_popup_menu",
130 G_TYPE_FROM_CLASS (klass),
132 G_STRUCT_OFFSET (GtkSCTreeClass, empty_popup_menu),
134 sylpheed_marshal_VOID__POINTER,
137 sctree_signals[OPEN_ROW] =
138 g_signal_new ("open_row",
139 G_TYPE_FROM_CLASS (klass),
141 G_STRUCT_OFFSET (GtkSCTreeClass, open_row),
143 g_cclosure_marshal_VOID__VOID,
145 sctree_signals[START_DRAG] =
146 g_signal_new ("start_drag",
147 G_TYPE_FROM_CLASS (klass),
149 G_STRUCT_OFFSET (GtkSCTreeClass, start_drag),
151 sylpheed_marshal_VOID__INT_POINTER,
156 /* gtk_object_class_add_signals (object_class, sctree_signals, LAST_SIGNAL); */
158 clist_class->clear = gtk_sctree_clear;
159 ctree_class->tree_collapse = gtk_sctree_collapse;
161 widget_class->button_press_event = gtk_sctree_button_press;
162 widget_class->button_release_event = gtk_sctree_button_release;
163 widget_class->motion_notify_event = gtk_sctree_motion;
164 widget_class->drag_begin = gtk_sctree_drag_begin;
165 widget_class->drag_end = gtk_sctree_drag_end;
166 widget_class->drag_data_get = gtk_sctree_drag_data_get;
167 widget_class->drag_leave = gtk_sctree_drag_leave;
168 widget_class->drag_motion = gtk_sctree_drag_motion;
169 widget_class->drag_drop = gtk_sctree_drag_drop;
170 widget_class->drag_data_received = gtk_sctree_drag_data_received;
173 /* Standard object initialization function */
175 gtk_sctree_init (GtkSCTree *sctree)
177 sctree->anchor_row = NULL;
179 /* GtkCTree does not specify pointer motion by default */
180 gtk_widget_add_events (GTK_WIDGET (sctree), GDK_POINTER_MOTION_MASK);
181 gtk_widget_add_events (GTK_WIDGET (sctree), GDK_POINTER_MOTION_MASK);
184 /* Get information the specified row is selected. */
187 row_is_selected(GtkSCTree *sctree, gint row)
189 GtkCListRow *clist_row;
190 clist_row = g_list_nth (GTK_CLIST(sctree)->row_list, row)->data;
191 return clist_row ? clist_row->state == GTK_STATE_SELECTED : FALSE;
194 /* Selects the rows between the anchor to the specified row, inclusive. */
196 select_range (GtkSCTree *sctree, gint row)
202 if (sctree->anchor_row == NULL) {
204 sctree->anchor_row = gtk_ctree_node_nth(GTK_CTREE(sctree), row);
206 prev_row = g_list_position(GTK_CLIST(sctree)->row_list,
207 (GList *)sctree->anchor_row);
209 if (row < prev_row) {
212 GTK_CLIST(sctree)->focus_row = max;
217 for (i = min; i <= max; i++)
218 gtk_clist_select_row (GTK_CLIST (sctree), i, -1);
221 /* Handles row selection according to the specified modifier state */
223 select_row (GtkSCTree *sctree, gint row, gint col, guint state)
225 gboolean range, additive;
226 g_return_if_fail (sctree != NULL);
227 g_return_if_fail (GTK_IS_SCTREE (sctree));
229 range = ((state & GDK_SHIFT_MASK) != 0) &&
230 (GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_SINGLE) &&
231 (GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_BROWSE);
232 additive = ((state & GDK_CONTROL_MASK) != 0) &&
233 (GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_SINGLE) &&
234 (GTK_CLIST(sctree)->selection_mode != GTK_SELECTION_BROWSE);
236 gtk_clist_freeze (GTK_CLIST (sctree));
237 GTK_CLIST(sctree)->focus_row = row;
238 GTK_CLIST_GET_CLASS(sctree)->refresh(GTK_CLIST(sctree));
240 gtk_clist_unselect_all (GTK_CLIST (sctree));
245 node = gtk_ctree_node_nth (GTK_CTREE(sctree), row);
247 /*No need to manage overlapped list*/
249 if (row_is_selected(sctree, row))
250 gtk_clist_unselect_row (GTK_CLIST (sctree), row, col);
252 g_signal_emit_by_name
254 "tree_select_row", node, col);
256 g_signal_emit_by_name
258 "tree_select_row", node, col);
260 sctree->anchor_row = node;
262 select_range (sctree, row);
263 gtk_clist_thaw (GTK_CLIST (sctree));
266 /* Our handler for button_press events. We override all of GtkCList's broken
270 gtk_sctree_button_press (GtkWidget *widget, GdkEventButton *event)
279 g_return_val_if_fail (widget != NULL, FALSE);
280 g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
281 g_return_val_if_fail (event != NULL, FALSE);
283 sctree = GTK_SCTREE (widget);
284 clist = GTK_CLIST (widget);
287 if (event->window != clist->clist_window)
288 return (* GTK_WIDGET_CLASS (parent_class)->button_press_event) (widget, event);
290 on_row = gtk_clist_get_selection_info (clist, event->x, event->y, &row, &col);
292 if (on_row && !GTK_WIDGET_HAS_FOCUS(widget))
293 gtk_widget_grab_focus (widget);
295 if (gtk_ctree_is_hot_spot (GTK_CTREE(sctree), event->x, event->y)) {
296 gtk_ctree_toggle_expansion
298 gtk_ctree_node_nth(GTK_CTREE(sctree), row));
302 switch (event->type) {
303 case GDK_BUTTON_PRESS:
304 if (event->button == 1 || event->button == 2) {
305 if (event->button == 2)
306 event->state &= ~(GDK_SHIFT_MASK | GDK_CONTROL_MASK);
308 /* Save the mouse info for DnD */
309 sctree->dnd_press_button = event->button;
310 sctree->dnd_press_x = event->x;
311 sctree->dnd_press_y = event->y;
313 /* Handle selection */
314 if ((row_is_selected (sctree, row)
315 && !(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)))
316 || ((event->state & GDK_CONTROL_MASK)
317 && !(event->state & GDK_SHIFT_MASK))) {
318 sctree->dnd_select_pending = TRUE;
319 sctree->dnd_select_pending_state = event->state;
320 sctree->dnd_select_pending_row = row;
322 select_row (sctree, row, col, event->state);
324 gtk_clist_unselect_all (clist);
327 } else if (event->button == 3) {
328 /* Emit *_popup_menu signal*/
330 if (!row_is_selected(sctree,row))
331 select_row (sctree, row, col, 0);
332 g_signal_emit (G_OBJECT (sctree),
333 sctree_signals[ROW_POPUP_MENU],
336 gtk_clist_unselect_all(clist);
337 g_signal_emit (G_OBJECT (sctree),
338 sctree_signals[EMPTY_POPUP_MENU],
346 case GDK_2BUTTON_PRESS:
347 if (event->button != 1)
350 sctree->dnd_select_pending = FALSE;
351 sctree->dnd_select_pending_state = 0;
354 g_signal_emit (GTK_OBJECT (sctree),
355 sctree_signals[OPEN_ROW], 0);
367 /* Our handler for button_release events. We override all of GtkCList's broken
371 gtk_sctree_button_release (GtkWidget *widget, GdkEventButton *event)
379 g_return_val_if_fail (widget != NULL, FALSE);
380 g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
381 g_return_val_if_fail (event != NULL, FALSE);
383 sctree = GTK_SCTREE (widget);
384 clist = GTK_CLIST (widget);
387 if (event->window != clist->clist_window)
388 return (* GTK_WIDGET_CLASS (parent_class)->button_release_event) (widget, event);
390 on_row = gtk_clist_get_selection_info (clist, event->x, event->y, &row, &col);
392 if (!(event->button == 1 || event->button == 2))
395 sctree->dnd_press_button = 0;
396 sctree->dnd_press_x = 0;
397 sctree->dnd_press_y = 0;
400 if (sctree->dnd_select_pending) {
401 select_row (sctree, row, col, sctree->dnd_select_pending_state);
402 sctree->dnd_select_pending = FALSE;
403 sctree->dnd_select_pending_state = 0;
412 /* Our handler for motion_notify events. We override all of GtkCList's broken
416 gtk_sctree_motion (GtkWidget *widget, GdkEventMotion *event)
421 g_return_val_if_fail (widget != NULL, FALSE);
422 g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
423 g_return_val_if_fail (event != NULL, FALSE);
425 sctree = GTK_SCTREE (widget);
426 clist = GTK_CLIST (widget);
428 if (event->window != clist->clist_window)
429 return (* GTK_WIDGET_CLASS (parent_class)->motion_notify_event) (widget, event);
431 if (!((sctree->dnd_press_button == 1 && (event->state & GDK_BUTTON1_MASK))
432 || (sctree->dnd_press_button == 2 && (event->state & GDK_BUTTON2_MASK))))
435 /* This is the same threshold value that is used in gtkdnd.c */
437 if (MAX (ABS (sctree->dnd_press_x - event->x),
438 ABS (sctree->dnd_press_y - event->y)) <= 3)
441 /* Handle any pending selections */
443 if (sctree->dnd_select_pending) {
444 if (!row_is_selected(sctree,sctree->dnd_select_pending_row))
446 sctree->dnd_select_pending_row,
448 sctree->dnd_select_pending_state);
450 sctree->dnd_select_pending = FALSE;
451 sctree->dnd_select_pending_state = 0;
454 g_signal_emit (G_OBJECT (sctree),
455 sctree_signals[START_DRAG],
457 sctree->dnd_press_button,
462 /* We override the drag_begin signal to do nothing */
464 gtk_sctree_drag_begin (GtkWidget *widget, GdkDragContext *context)
469 /* We override the drag_end signal to do nothing */
471 gtk_sctree_drag_end (GtkWidget *widget, GdkDragContext *context)
476 /* We override the drag_data_get signal to do nothing */
478 gtk_sctree_drag_data_get (GtkWidget *widget, GdkDragContext *context,
479 GtkSelectionData *data, guint info, guint time)
484 /* We override the drag_leave signal to do nothing */
486 gtk_sctree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time)
491 /* We override the drag_motion signal to do nothing */
493 gtk_sctree_drag_motion (GtkWidget *widget, GdkDragContext *context,
494 gint x, gint y, guint time)
499 /* We override the drag_drop signal to do nothing */
501 gtk_sctree_drag_drop (GtkWidget *widget, GdkDragContext *context,
502 gint x, gint y, guint time)
507 /* We override the drag_data_received signal to do nothing */
509 gtk_sctree_drag_data_received (GtkWidget *widget, GdkDragContext *context,
510 gint x, gint y, GtkSelectionData *data,
511 guint info, guint time)
516 /* Our handler for the clear signal of the clist. We have to reset the anchor
520 gtk_sctree_clear (GtkCList *clist)
524 g_return_if_fail (clist != NULL);
525 g_return_if_fail (GTK_IS_SCTREE (clist));
527 sctree = GTK_SCTREE (clist);
528 sctree->anchor_row = NULL;
530 if (((GtkCListClass *)parent_class)->clear)
531 (* ((GtkCListClass *)parent_class)->clear) (clist);
534 /* Our handler for the change_focus_row_expansion signal of the ctree.
535 We have to set the anchor to parent visible node.
538 gtk_sctree_collapse (GtkCTree *ctree, GtkCTreeNode *node)
540 g_return_if_fail (ctree != NULL);
541 g_return_if_fail (GTK_IS_SCTREE (ctree));
543 (* parent_class->tree_collapse) (ctree, node);
544 GTK_SCTREE(ctree)->anchor_row =
545 gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->focus_row);
548 GtkWidget *gtk_sctree_new_with_titles (gint columns, gint tree_column,
554 sctree = gtk_type_new (gtk_sctree_get_type ());
555 gtk_ctree_construct (GTK_CTREE (sctree), columns, tree_column, titles);
557 gtk_clist_set_selection_mode(GTK_CLIST(sctree), GTK_SELECTION_EXTENDED);
559 return GTK_WIDGET (sctree);
563 g_return_val_if_fail (columns > 0, NULL);
564 g_return_val_if_fail (tree_column >= 0 && tree_column < columns, NULL);
566 widget = gtk_widget_new (TYPE_GTK_SCTREE,
567 "n_columns", columns,
568 "tree_column", tree_column,
571 GtkCList *clist = GTK_CLIST (widget);
574 for (i = 0; i < columns; i++)
575 gtk_clist_set_column_title (clist, i, titles[i]);
576 gtk_clist_column_titles_show (clist);
583 void gtk_sctree_select (GtkSCTree *sctree, GtkCTreeNode *node)
586 g_list_position(GTK_CLIST(sctree)->row_list, (GList *)node),
590 void gtk_sctree_unselect_all (GtkSCTree *sctree)
592 gtk_clist_unselect_all(GTK_CLIST(sctree));
593 sctree->anchor_row = NULL;
596 void gtk_sctree_set_anchor_row (GtkSCTree *sctree, GtkCTreeNode *node)
598 sctree->anchor_row = node;
601 /***********************************************************
602 * Tree sorting functions *
603 ***********************************************************/
605 static void sink(GtkCList *clist, GPtrArray *numbers, gint root, gint bottom)
613 /* find the maximum element of numbers[root],
614 numbers[2*root] and numbers[2*root+1] */
616 if (clist->compare( clist, GTK_CTREE_ROW (g_ptr_array_index(numbers, root)),
617 GTK_CTREE_ROW(g_ptr_array_index( numbers, j))) >= 0)
620 if (clist->compare( clist, GTK_CTREE_ROW (g_ptr_array_index(numbers, k)),
621 GTK_CTREE_ROW (g_ptr_array_index( numbers, j))) > 0)
623 /* if numbers[root] wasn't the maximum element then
626 temp = g_ptr_array_index( numbers,root);
627 g_ptr_array_index( numbers, root) = g_ptr_array_index( numbers, j);
628 g_ptr_array_index( numbers, j) = temp;
629 sink( clist, numbers, j, bottom);
634 static void heap_sort(GtkCList *clist, GPtrArray *numbers, gint array_size)
640 for (i = (array_size / 2); i >= 1; i--)
641 sink( clist, numbers, i, array_size);
642 /* output the Heap */
643 for (i = array_size; i >= 2; i--) {
644 temp = g_ptr_array_index( numbers, 1);
645 g_ptr_array_index( numbers, 1) = g_ptr_array_index( numbers, i);
646 g_ptr_array_index( numbers, i) = temp;
647 sink( clist, numbers, 1, i-1);
652 tree_sort (GtkCTree *ctree,
656 GtkCTreeNode *list_start, *work, *next;
657 GPtrArray *row_array, *viewable_array;
662 clist = GTK_CLIST (ctree);
665 work = GTK_CTREE_ROW (node)->children;
667 work = GTK_CTREE_NODE (clist->row_list);
669 row_array = g_ptr_array_new();
670 viewable_array = g_ptr_array_new();
673 g_ptr_array_add( row_array, NULL);
675 /* add all rows to row_array */
676 g_ptr_array_add( row_array, work);
677 if (GTK_CTREE_ROW (work)->parent && gtk_ctree_is_viewable( ctree, work))
678 g_ptr_array_add( viewable_array, GTK_CTREE_ROW (work)->parent);
679 next = GTK_CTREE_ROW (work)->sibling;
680 gtk_ctree_unlink( ctree, work, FALSE);
684 heap_sort( clist, row_array, (row_array->len)-1);
687 list_start = GTK_CTREE_ROW (node)->children;
689 list_start = GTK_CTREE_NODE (clist->row_list);
691 if (clist->sort_type == GTK_SORT_ASCENDING) {
692 for (i=(row_array->len)-1; i>=1; i--) {
693 work = g_ptr_array_index( row_array, i);
694 gtk_ctree_link( ctree, work, node, list_start, FALSE);
696 /* insert work at the beginning of the list */
699 for (i=1; i<row_array->len; i++) {
700 work = g_ptr_array_index( row_array, i);
701 gtk_ctree_link( ctree, work, node, list_start, FALSE);
703 /* insert work at the beginning of the list */
707 for (i=0; i<viewable_array->len; i++) {
708 gtk_ctree_expand( ctree, g_ptr_array_index( viewable_array, i));
713 g_ptr_array_free( row_array, TRUE);
714 g_ptr_array_free( viewable_array, TRUE);
718 gtk_sctree_sort_recursive (GtkCTree *ctree,
722 GtkCTreeNode *focus_node = NULL;
724 g_return_if_fail (ctree != NULL);
725 g_return_if_fail (GTK_IS_CTREE (ctree));
727 clist = GTK_CLIST (ctree);
729 gtk_clist_freeze (clist);
731 if (clist->selection_mode == GTK_SELECTION_EXTENDED) {
732 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
734 g_list_free (clist->undo_selection);
735 g_list_free (clist->undo_unselection);
736 clist->undo_selection = NULL;
737 clist->undo_unselection = NULL;
740 if (!node || (node && gtk_ctree_is_viewable (ctree, node)))
741 focus_node = GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row));
743 gtk_ctree_post_recursive (ctree, node, GTK_CTREE_FUNC (tree_sort), NULL);
746 tree_sort (ctree, NULL, NULL);
749 clist->focus_row = g_list_position (clist->row_list,(GList *)focus_node);
750 clist->undo_anchor = clist->focus_row;
753 gtk_clist_thaw (clist);
757 gtk_sctree_sort_node (GtkCTree *ctree,
761 GtkCTreeNode *focus_node = NULL;
763 g_return_if_fail (ctree != NULL);
764 g_return_if_fail (GTK_IS_CTREE (ctree));
766 clist = GTK_CLIST (ctree);
768 gtk_clist_freeze (clist);
770 if (clist->selection_mode == GTK_SELECTION_EXTENDED) {
771 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
773 g_list_free (clist->undo_selection);
774 g_list_free (clist->undo_unselection);
775 clist->undo_selection = NULL;
776 clist->undo_unselection = NULL;
779 if (!node || (node && gtk_ctree_is_viewable (ctree, node)))
780 focus_node = GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row));
782 tree_sort (ctree, node, NULL);
785 clist->focus_row = g_list_position (clist->row_list,(GList *)focus_node);
786 clist->undo_anchor = clist->focus_row;
789 gtk_clist_thaw (clist);
792 /************************************************************************/
795 gtk_ctree_unlink (GtkCTree *ctree,
797 gboolean update_focus_row)
804 GtkCTreeNode *parent;
807 g_return_if_fail (ctree != NULL);
808 g_return_if_fail (GTK_IS_CTREE (ctree));
809 g_return_if_fail (node != NULL);
811 clist = GTK_CLIST (ctree);
813 if (update_focus_row && clist->selection_mode == GTK_SELECTION_EXTENDED) {
814 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
816 g_list_free (clist->undo_selection);
817 g_list_free (clist->undo_unselection);
818 clist->undo_selection = NULL;
819 clist->undo_unselection = NULL;
822 visible = gtk_ctree_is_viewable (ctree, node);
824 /* clist->row_list_end unlinked ? */
825 if (visible && (GTK_CTREE_NODE_NEXT (node) == NULL ||
826 (GTK_CTREE_ROW (node)->children && gtk_ctree_is_ancestor (ctree, node,
827 GTK_CTREE_NODE (clist->row_list_end)))))
828 clist->row_list_end = (GList *) (GTK_CTREE_NODE_PREV (node));
832 level = GTK_CTREE_ROW (node)->level;
833 work = GTK_CTREE_NODE_NEXT (node);
834 while (work && GTK_CTREE_ROW (work)->level > level) {
835 work = GTK_CTREE_NODE_NEXT (work);
840 clist->rows -= (rows + 1);
842 if (update_focus_row) {
845 pos = g_list_position (clist->row_list, (GList *)node);
846 if (pos + rows < clist->focus_row)
847 clist->focus_row -= (rows + 1);
848 else if (pos <= clist->focus_row) {
849 if (!GTK_CTREE_ROW (node)->sibling)
850 clist->focus_row = MAX (pos - 1, 0);
852 clist->focus_row = pos;
854 clist->focus_row = MIN (clist->focus_row, clist->rows - 1);
856 clist->undo_anchor = clist->focus_row;
861 list = (GList *)GTK_CTREE_NODE_PREV (work);
863 list = (GList *)work;
864 list->prev = (GList *)GTK_CTREE_NODE_PREV (node);
867 if (GTK_CTREE_NODE_PREV (node) &&
868 GTK_CTREE_NODE_NEXT (GTK_CTREE_NODE_PREV (node)) == node) {
869 list = (GList *)GTK_CTREE_NODE_PREV (node);
870 list->next = (GList *)work;
874 parent = GTK_CTREE_ROW (node)->parent;
876 if (GTK_CTREE_ROW (parent)->children == node) {
877 GTK_CTREE_ROW (parent)->children = GTK_CTREE_ROW (node)->sibling;
878 if (!GTK_CTREE_ROW (parent)->children)
879 gtk_ctree_collapse (ctree, parent);
882 GtkCTreeNode *sibling;
884 sibling = GTK_CTREE_ROW (parent)->children;
885 while (GTK_CTREE_ROW (sibling)->sibling != node)
886 sibling = GTK_CTREE_ROW (sibling)->sibling;
887 GTK_CTREE_ROW (sibling)->sibling = GTK_CTREE_ROW (node)->sibling;
891 if (clist->row_list == (GList *)node)
892 clist->row_list = (GList *) (GTK_CTREE_ROW (node)->sibling);
894 GtkCTreeNode *sibling;
896 sibling = GTK_CTREE_NODE (clist->row_list);
897 while (GTK_CTREE_ROW (sibling)->sibling != node)
898 sibling = GTK_CTREE_ROW (sibling)->sibling;
899 GTK_CTREE_ROW (sibling)->sibling = GTK_CTREE_ROW (node)->sibling;
905 gtk_ctree_link (GtkCTree *ctree,
907 GtkCTreeNode *parent,
908 GtkCTreeNode *sibling,
909 gboolean update_focus_row)
915 gboolean visible = FALSE;
919 g_return_if_fail (GTK_CTREE_ROW (sibling)->parent == parent);
920 g_return_if_fail (node != NULL);
921 g_return_if_fail (node != sibling);
922 g_return_if_fail (node != parent);
924 clist = GTK_CLIST (ctree);
926 if (update_focus_row && clist->selection_mode == GTK_SELECTION_EXTENDED) {
927 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
929 g_list_free (clist->undo_selection);
930 g_list_free (clist->undo_unselection);
931 clist->undo_selection = NULL;
932 clist->undo_unselection = NULL;
935 for (rows = 1, list_end = (GList *)node; list_end->next;
936 list_end = list_end->next)
939 GTK_CTREE_ROW (node)->parent = parent;
940 GTK_CTREE_ROW (node)->sibling = sibling;
942 if (!parent || (parent && (gtk_ctree_is_viewable (ctree, parent) &&
943 GTK_CTREE_ROW (parent)->expanded))) {
949 work = (GList *)(GTK_CTREE_ROW (parent)->children);
951 work = clist->row_list;
954 if (work != (GList *)sibling) {
955 while (GTK_CTREE_ROW (work)->sibling != sibling)
956 work = (GList *)(GTK_CTREE_ROW (work)->sibling);
957 GTK_CTREE_ROW (work)->sibling = node;
960 if (sibling == GTK_CTREE_NODE (clist->row_list))
961 clist->row_list = (GList *) node;
962 if (GTK_CTREE_NODE_PREV (sibling) &&
963 GTK_CTREE_NODE_NEXT (GTK_CTREE_NODE_PREV (sibling)) == sibling) {
964 list = (GList *)GTK_CTREE_NODE_PREV (sibling);
965 list->next = (GList *)node;
968 list = (GList *)node;
969 list->prev = (GList *)GTK_CTREE_NODE_PREV (sibling);
970 list_end->next = (GList *)sibling;
971 list = (GList *)sibling;
972 list->prev = list_end;
973 if (parent && GTK_CTREE_ROW (parent)->children == sibling)
974 GTK_CTREE_ROW (parent)->children = node;
979 while (GTK_CTREE_ROW (work)->sibling)
980 work = (GList *)(GTK_CTREE_ROW (work)->sibling);
981 GTK_CTREE_ROW (work)->sibling = node;
983 /* find last visible child of sibling */
984 work = (GList *) gtk_ctree_last_visible (ctree,
985 GTK_CTREE_NODE (work));
987 list_end->next = work->next;
989 list = work->next->prev = list_end;
990 work->next = (GList *)node;
991 list = (GList *)node;
996 GTK_CTREE_ROW (parent)->children = node;
997 list = (GList *)node;
998 list->prev = (GList *)parent;
999 if (GTK_CTREE_ROW (parent)->expanded) {
1000 list_end->next = (GList *)GTK_CTREE_NODE_NEXT (parent);
1001 if (GTK_CTREE_NODE_NEXT(parent)) {
1002 list = (GList *)GTK_CTREE_NODE_NEXT (parent);
1003 list->prev = list_end;
1005 list = (GList *)parent;
1006 list->next = (GList *)node;
1009 list_end->next = NULL;
1012 clist->row_list = (GList *)node;
1013 list = (GList *)node;
1015 list_end->next = NULL;
1020 gtk_ctree_pre_recursive (ctree, node, tree_update_level, NULL);
1022 if (clist->row_list_end == NULL ||
1023 clist->row_list_end->next == (GList *)node)
1024 clist->row_list_end = list_end;
1026 if (visible && update_focus_row) {
1029 pos = g_list_position (clist->row_list, (GList *)node);
1031 if (pos <= clist->focus_row) {
1032 clist->focus_row += rows;
1033 clist->undo_anchor = clist->focus_row;
1039 tree_update_level (GtkCTree *ctree,
1046 if (GTK_CTREE_ROW (node)->parent)
1047 GTK_CTREE_ROW (node)->level =
1048 GTK_CTREE_ROW (GTK_CTREE_ROW (node)->parent)->level + 1;
1050 GTK_CTREE_ROW (node)->level = 1;
1053 static GtkCTreeNode *
1054 gtk_ctree_last_visible (GtkCTree *ctree,
1062 work = GTK_CTREE_ROW (node)->children;
1064 if (!work || !GTK_CTREE_ROW (node)->expanded)
1067 while (GTK_CTREE_ROW (work)->sibling)
1068 work = GTK_CTREE_ROW (work)->sibling;
1070 return gtk_ctree_last_visible (ctree, work);