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));
238 GTK_CLIST(sctree)->focus_row = row;
240 GTK_CLIST_GET_CLASS(sctree)->refresh(GTK_CLIST(sctree));
243 gtk_clist_unselect_all (GTK_CLIST (sctree));
248 node = gtk_ctree_node_nth (GTK_CTREE(sctree), row);
250 /*No need to manage overlapped list*/
252 if (row_is_selected(sctree, row))
253 gtk_clist_unselect_row (GTK_CLIST (sctree), row, col);
255 g_signal_emit_by_name
257 "tree_select_row", node, col);
259 g_signal_emit_by_name
261 "tree_select_row", node, col);
263 sctree->anchor_row = node;
265 select_range (sctree, row);
267 gtk_clist_thaw (GTK_CLIST (sctree));
270 /* Our handler for button_press events. We override all of GtkCList's broken
274 gtk_sctree_button_press (GtkWidget *widget, GdkEventButton *event)
283 g_return_val_if_fail (widget != NULL, FALSE);
284 g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
285 g_return_val_if_fail (event != NULL, FALSE);
287 sctree = GTK_SCTREE (widget);
288 clist = GTK_CLIST (widget);
291 if (event->window != clist->clist_window)
292 return (* GTK_WIDGET_CLASS (parent_class)->button_press_event) (widget, event);
294 on_row = gtk_clist_get_selection_info (clist, event->x, event->y, &row, &col);
296 if (on_row && !GTK_WIDGET_HAS_FOCUS(widget))
297 gtk_widget_grab_focus (widget);
299 if (gtk_ctree_is_hot_spot (GTK_CTREE(sctree), event->x, event->y)) {
300 gtk_ctree_toggle_expansion
302 gtk_ctree_node_nth(GTK_CTREE(sctree), row));
306 switch (event->type) {
307 case GDK_BUTTON_PRESS:
308 if (event->button == 1 || event->button == 2) {
309 if (event->button == 2)
310 event->state &= ~(GDK_SHIFT_MASK | GDK_CONTROL_MASK);
312 /* Save the mouse info for DnD */
313 sctree->dnd_press_button = event->button;
314 sctree->dnd_press_x = event->x;
315 sctree->dnd_press_y = event->y;
317 /* Handle selection */
318 if ((row_is_selected (sctree, row)
319 && !(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)))
320 || ((event->state & GDK_CONTROL_MASK)
321 && !(event->state & GDK_SHIFT_MASK))) {
322 sctree->dnd_select_pending = TRUE;
323 sctree->dnd_select_pending_state = event->state;
324 sctree->dnd_select_pending_row = row;
326 select_row (sctree, row, col, event->state);
328 gtk_clist_unselect_all (clist);
331 } else if (event->button == 3) {
332 /* Emit *_popup_menu signal*/
334 if (!row_is_selected(sctree,row))
335 select_row (sctree, row, col, 0);
336 g_signal_emit (G_OBJECT (sctree),
337 sctree_signals[ROW_POPUP_MENU],
340 gtk_clist_unselect_all(clist);
341 g_signal_emit (G_OBJECT (sctree),
342 sctree_signals[EMPTY_POPUP_MENU],
350 case GDK_2BUTTON_PRESS:
351 if (event->button != 1)
354 sctree->dnd_select_pending = FALSE;
355 sctree->dnd_select_pending_state = 0;
358 g_signal_emit (G_OBJECT (sctree),
359 sctree_signals[OPEN_ROW], 0);
371 /* Our handler for button_release events. We override all of GtkCList's broken
375 gtk_sctree_button_release (GtkWidget *widget, GdkEventButton *event)
383 g_return_val_if_fail (widget != NULL, FALSE);
384 g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
385 g_return_val_if_fail (event != NULL, FALSE);
387 sctree = GTK_SCTREE (widget);
388 clist = GTK_CLIST (widget);
391 if (event->window != clist->clist_window)
392 return (* GTK_WIDGET_CLASS (parent_class)->button_release_event) (widget, event);
394 on_row = gtk_clist_get_selection_info (clist, event->x, event->y, &row, &col);
396 if (!(event->button == 1 || event->button == 2))
399 sctree->dnd_press_button = 0;
400 sctree->dnd_press_x = 0;
401 sctree->dnd_press_y = 0;
404 if (sctree->dnd_select_pending) {
405 select_row (sctree, row, col, sctree->dnd_select_pending_state);
406 sctree->dnd_select_pending = FALSE;
407 sctree->dnd_select_pending_state = 0;
416 /* Our handler for motion_notify events. We override all of GtkCList's broken
420 gtk_sctree_motion (GtkWidget *widget, GdkEventMotion *event)
425 g_return_val_if_fail (widget != NULL, FALSE);
426 g_return_val_if_fail (GTK_IS_SCTREE (widget), FALSE);
427 g_return_val_if_fail (event != NULL, FALSE);
429 sctree = GTK_SCTREE (widget);
430 clist = GTK_CLIST (widget);
432 if (event->window != clist->clist_window)
433 return (* GTK_WIDGET_CLASS (parent_class)->motion_notify_event) (widget, event);
435 if (!((sctree->dnd_press_button == 1 && (event->state & GDK_BUTTON1_MASK))
436 || (sctree->dnd_press_button == 2 && (event->state & GDK_BUTTON2_MASK))))
439 /* This is the same threshold value that is used in gtkdnd.c */
441 if (MAX (ABS (sctree->dnd_press_x - event->x),
442 ABS (sctree->dnd_press_y - event->y)) <= 3)
445 /* Handle any pending selections */
447 if (sctree->dnd_select_pending) {
448 if (!row_is_selected(sctree,sctree->dnd_select_pending_row))
450 sctree->dnd_select_pending_row,
452 sctree->dnd_select_pending_state);
454 sctree->dnd_select_pending = FALSE;
455 sctree->dnd_select_pending_state = 0;
458 g_signal_emit (G_OBJECT (sctree),
459 sctree_signals[START_DRAG],
461 sctree->dnd_press_button,
466 /* We override the drag_begin signal to do nothing */
468 gtk_sctree_drag_begin (GtkWidget *widget, GdkDragContext *context)
473 /* We override the drag_end signal to do nothing */
475 gtk_sctree_drag_end (GtkWidget *widget, GdkDragContext *context)
480 /* We override the drag_data_get signal to do nothing */
482 gtk_sctree_drag_data_get (GtkWidget *widget, GdkDragContext *context,
483 GtkSelectionData *data, guint info, guint time)
488 /* We override the drag_leave signal to do nothing */
490 gtk_sctree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time)
495 /* We override the drag_motion signal to do nothing */
497 gtk_sctree_drag_motion (GtkWidget *widget, GdkDragContext *context,
498 gint x, gint y, guint time)
503 /* We override the drag_drop signal to do nothing */
505 gtk_sctree_drag_drop (GtkWidget *widget, GdkDragContext *context,
506 gint x, gint y, guint time)
511 /* We override the drag_data_received signal to do nothing */
513 gtk_sctree_drag_data_received (GtkWidget *widget, GdkDragContext *context,
514 gint x, gint y, GtkSelectionData *data,
515 guint info, guint time)
520 /* Our handler for the clear signal of the clist. We have to reset the anchor
524 gtk_sctree_clear (GtkCList *clist)
528 g_return_if_fail (clist != NULL);
529 g_return_if_fail (GTK_IS_SCTREE (clist));
531 sctree = GTK_SCTREE (clist);
532 sctree->anchor_row = NULL;
534 if (((GtkCListClass *)parent_class)->clear)
535 (* ((GtkCListClass *)parent_class)->clear) (clist);
538 /* Our handler for the change_focus_row_expansion signal of the ctree.
539 We have to set the anchor to parent visible node.
542 gtk_sctree_collapse (GtkCTree *ctree, GtkCTreeNode *node)
544 g_return_if_fail (ctree != NULL);
545 g_return_if_fail (GTK_IS_SCTREE (ctree));
547 (* parent_class->tree_collapse) (ctree, node);
548 GTK_SCTREE(ctree)->anchor_row =
549 gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->focus_row);
552 GtkWidget *gtk_sctree_new_with_titles (gint columns, gint tree_column,
558 sctree = gtk_type_new (gtk_sctree_get_type ());
559 gtk_ctree_construct (GTK_CTREE (sctree), columns, tree_column, titles);
561 gtk_clist_set_selection_mode(GTK_CLIST(sctree), GTK_SELECTION_EXTENDED);
563 return GTK_WIDGET (sctree);
567 g_return_val_if_fail (columns > 0, NULL);
568 g_return_val_if_fail (tree_column >= 0, NULL);
570 widget = gtk_widget_new (TYPE_GTK_SCTREE,
571 "n_columns", columns,
572 "tree_column", tree_column,
575 GtkCList *clist = GTK_CLIST (widget);
578 for (i = 0; i < columns; i++)
579 gtk_clist_set_column_title (clist, i, titles[i]);
580 gtk_clist_column_titles_show (clist);
587 void gtk_sctree_select (GtkSCTree *sctree, GtkCTreeNode *node)
590 g_list_position(GTK_CLIST(sctree)->row_list, (GList *)node),
594 void gtk_sctree_select_with_state (GtkSCTree *sctree, GtkCTreeNode *node, int state)
597 g_list_position(GTK_CLIST(sctree)->row_list, (GList *)node),
601 void gtk_sctree_unselect_all (GtkSCTree *sctree)
603 gtk_clist_unselect_all(GTK_CLIST(sctree));
604 sctree->anchor_row = NULL;
607 void gtk_sctree_set_anchor_row (GtkSCTree *sctree, GtkCTreeNode *node)
609 sctree->anchor_row = node;
612 /***********************************************************
613 * Tree sorting functions *
614 ***********************************************************/
616 static void sink(GtkCList *clist, GPtrArray *numbers, gint root, gint bottom)
624 /* find the maximum element of numbers[root],
625 numbers[2*root] and numbers[2*root+1] */
627 if (clist->compare( clist, GTK_CTREE_ROW (g_ptr_array_index(numbers, root)),
628 GTK_CTREE_ROW(g_ptr_array_index( numbers, j))) >= 0)
631 if (clist->compare( clist, GTK_CTREE_ROW (g_ptr_array_index(numbers, k)),
632 GTK_CTREE_ROW (g_ptr_array_index( numbers, j))) > 0)
634 /* if numbers[root] wasn't the maximum element then
637 temp = g_ptr_array_index( numbers,root);
638 g_ptr_array_index( numbers, root) = g_ptr_array_index( numbers, j);
639 g_ptr_array_index( numbers, j) = temp;
640 sink( clist, numbers, j, bottom);
645 static void heap_sort(GtkCList *clist, GPtrArray *numbers, gint array_size)
651 for (i = (array_size / 2); i >= 1; i--)
652 sink( clist, numbers, i, array_size);
653 /* output the Heap */
654 for (i = array_size; i >= 2; i--) {
655 temp = g_ptr_array_index( numbers, 1);
656 g_ptr_array_index( numbers, 1) = g_ptr_array_index( numbers, i);
657 g_ptr_array_index( numbers, i) = temp;
658 sink( clist, numbers, 1, i-1);
663 tree_sort (GtkCTree *ctree,
667 GtkCTreeNode *list_start, *work, *next;
668 GPtrArray *row_array, *viewable_array;
673 clist = GTK_CLIST (ctree);
676 work = GTK_CTREE_ROW (node)->children;
678 work = GTK_CTREE_NODE (clist->row_list);
680 row_array = g_ptr_array_new();
681 viewable_array = g_ptr_array_new();
684 g_ptr_array_add( row_array, NULL);
686 /* add all rows to row_array */
687 g_ptr_array_add( row_array, work);
688 if (GTK_CTREE_ROW (work)->parent && gtk_ctree_is_viewable( ctree, work))
689 g_ptr_array_add( viewable_array, GTK_CTREE_ROW (work)->parent);
690 next = GTK_CTREE_ROW (work)->sibling;
691 gtk_ctree_unlink( ctree, work, FALSE);
695 heap_sort( clist, row_array, (row_array->len)-1);
698 list_start = GTK_CTREE_ROW (node)->children;
700 list_start = GTK_CTREE_NODE (clist->row_list);
702 if (clist->sort_type == GTK_SORT_ASCENDING) {
703 for (i=(row_array->len)-1; i>=1; i--) {
704 work = g_ptr_array_index( row_array, i);
705 gtk_ctree_link( ctree, work, node, list_start, FALSE);
707 /* insert work at the beginning of the list */
710 for (i=1; i<row_array->len; i++) {
711 work = g_ptr_array_index( row_array, i);
712 gtk_ctree_link( ctree, work, node, list_start, FALSE);
714 /* insert work at the beginning of the list */
718 for (i=0; i<viewable_array->len; i++) {
719 gtk_ctree_expand( ctree, g_ptr_array_index( viewable_array, i));
724 g_ptr_array_free( row_array, TRUE);
725 g_ptr_array_free( viewable_array, TRUE);
729 gtk_sctree_sort_recursive (GtkCTree *ctree,
733 GtkCTreeNode *focus_node = NULL;
735 g_return_if_fail (ctree != NULL);
736 g_return_if_fail (GTK_IS_CTREE (ctree));
738 clist = GTK_CLIST (ctree);
740 gtk_clist_freeze (clist);
742 if (clist->selection_mode == GTK_SELECTION_EXTENDED) {
743 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
745 g_list_free (clist->undo_selection);
746 g_list_free (clist->undo_unselection);
747 clist->undo_selection = NULL;
748 clist->undo_unselection = NULL;
751 if (!node || (node && gtk_ctree_is_viewable (ctree, node)))
752 focus_node = GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row));
754 gtk_ctree_post_recursive (ctree, node, GTK_CTREE_FUNC (tree_sort), NULL);
757 tree_sort (ctree, NULL, NULL);
760 clist->focus_row = g_list_position (clist->row_list,(GList *)focus_node);
761 clist->undo_anchor = clist->focus_row;
764 gtk_clist_thaw (clist);
768 gtk_sctree_sort_node (GtkCTree *ctree,
772 GtkCTreeNode *focus_node = NULL;
774 g_return_if_fail (ctree != NULL);
775 g_return_if_fail (GTK_IS_CTREE (ctree));
777 clist = GTK_CLIST (ctree);
779 gtk_clist_freeze (clist);
781 if (clist->selection_mode == GTK_SELECTION_EXTENDED) {
782 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
784 g_list_free (clist->undo_selection);
785 g_list_free (clist->undo_unselection);
786 clist->undo_selection = NULL;
787 clist->undo_unselection = NULL;
790 if (!node || (node && gtk_ctree_is_viewable (ctree, node)))
791 focus_node = GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row));
793 tree_sort (ctree, node, NULL);
796 clist->focus_row = g_list_position (clist->row_list,(GList *)focus_node);
797 clist->undo_anchor = clist->focus_row;
800 gtk_clist_thaw (clist);
803 /************************************************************************/
806 gtk_ctree_unlink (GtkCTree *ctree,
808 gboolean update_focus_row)
815 GtkCTreeNode *parent;
818 g_return_if_fail (ctree != NULL);
819 g_return_if_fail (GTK_IS_CTREE (ctree));
820 g_return_if_fail (node != NULL);
822 clist = GTK_CLIST (ctree);
824 if (update_focus_row && clist->selection_mode == GTK_SELECTION_EXTENDED) {
825 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
827 g_list_free (clist->undo_selection);
828 g_list_free (clist->undo_unselection);
829 clist->undo_selection = NULL;
830 clist->undo_unselection = NULL;
833 visible = gtk_ctree_is_viewable (ctree, node);
835 /* clist->row_list_end unlinked ? */
836 if (visible && (GTK_CTREE_NODE_NEXT (node) == NULL ||
837 (GTK_CTREE_ROW (node)->children && gtk_ctree_is_ancestor (ctree, node,
838 GTK_CTREE_NODE (clist->row_list_end)))))
839 clist->row_list_end = (GList *) (GTK_CTREE_NODE_PREV (node));
843 level = GTK_CTREE_ROW (node)->level;
844 work = GTK_CTREE_NODE_NEXT (node);
845 while (work && GTK_CTREE_ROW (work)->level > level) {
846 work = GTK_CTREE_NODE_NEXT (work);
851 clist->rows -= (rows + 1);
853 if (update_focus_row) {
856 pos = g_list_position (clist->row_list, (GList *)node);
857 if (pos + rows < clist->focus_row)
858 clist->focus_row -= (rows + 1);
859 else if (pos <= clist->focus_row) {
860 if (!GTK_CTREE_ROW (node)->sibling)
861 clist->focus_row = MAX (pos - 1, 0);
863 clist->focus_row = pos;
865 clist->focus_row = MIN (clist->focus_row, clist->rows - 1);
867 clist->undo_anchor = clist->focus_row;
872 list = (GList *)GTK_CTREE_NODE_PREV (work);
874 list = (GList *)work;
875 list->prev = (GList *)GTK_CTREE_NODE_PREV (node);
878 if (GTK_CTREE_NODE_PREV (node) &&
879 GTK_CTREE_NODE_NEXT (GTK_CTREE_NODE_PREV (node)) == node) {
880 list = (GList *)GTK_CTREE_NODE_PREV (node);
881 list->next = (GList *)work;
885 parent = GTK_CTREE_ROW (node)->parent;
887 if (GTK_CTREE_ROW (parent)->children == node) {
888 GTK_CTREE_ROW (parent)->children = GTK_CTREE_ROW (node)->sibling;
889 if (!GTK_CTREE_ROW (parent)->children)
890 gtk_ctree_collapse (ctree, parent);
893 GtkCTreeNode *sibling;
895 sibling = GTK_CTREE_ROW (parent)->children;
896 while (GTK_CTREE_ROW (sibling)->sibling != node)
897 sibling = GTK_CTREE_ROW (sibling)->sibling;
898 GTK_CTREE_ROW (sibling)->sibling = GTK_CTREE_ROW (node)->sibling;
902 if (clist->row_list == (GList *)node)
903 clist->row_list = (GList *) (GTK_CTREE_ROW (node)->sibling);
905 GtkCTreeNode *sibling;
907 sibling = GTK_CTREE_NODE (clist->row_list);
908 while (GTK_CTREE_ROW (sibling)->sibling != node)
909 sibling = GTK_CTREE_ROW (sibling)->sibling;
910 GTK_CTREE_ROW (sibling)->sibling = GTK_CTREE_ROW (node)->sibling;
916 gtk_ctree_link (GtkCTree *ctree,
918 GtkCTreeNode *parent,
919 GtkCTreeNode *sibling,
920 gboolean update_focus_row)
926 gboolean visible = FALSE;
930 g_return_if_fail (GTK_CTREE_ROW (sibling)->parent == parent);
931 g_return_if_fail (node != NULL);
932 g_return_if_fail (node != sibling);
933 g_return_if_fail (node != parent);
935 clist = GTK_CLIST (ctree);
937 if (update_focus_row && clist->selection_mode == GTK_SELECTION_EXTENDED) {
938 GTK_CLIST_GET_CLASS (clist)->resync_selection (clist, NULL);
940 g_list_free (clist->undo_selection);
941 g_list_free (clist->undo_unselection);
942 clist->undo_selection = NULL;
943 clist->undo_unselection = NULL;
946 for (rows = 1, list_end = (GList *)node; list_end->next;
947 list_end = list_end->next)
950 GTK_CTREE_ROW (node)->parent = parent;
951 GTK_CTREE_ROW (node)->sibling = sibling;
953 if (!parent || (parent && (gtk_ctree_is_viewable (ctree, parent) &&
954 GTK_CTREE_ROW (parent)->expanded))) {
960 work = (GList *)(GTK_CTREE_ROW (parent)->children);
962 work = clist->row_list;
965 if (work != (GList *)sibling) {
966 while (GTK_CTREE_ROW (work)->sibling != sibling)
967 work = (GList *)(GTK_CTREE_ROW (work)->sibling);
968 GTK_CTREE_ROW (work)->sibling = node;
971 if (sibling == GTK_CTREE_NODE (clist->row_list))
972 clist->row_list = (GList *) node;
973 if (GTK_CTREE_NODE_PREV (sibling) &&
974 GTK_CTREE_NODE_NEXT (GTK_CTREE_NODE_PREV (sibling)) == sibling) {
975 list = (GList *)GTK_CTREE_NODE_PREV (sibling);
976 list->next = (GList *)node;
979 list = (GList *)node;
980 list->prev = (GList *)GTK_CTREE_NODE_PREV (sibling);
981 list_end->next = (GList *)sibling;
982 list = (GList *)sibling;
983 list->prev = list_end;
984 if (parent && GTK_CTREE_ROW (parent)->children == sibling)
985 GTK_CTREE_ROW (parent)->children = node;
990 while (GTK_CTREE_ROW (work)->sibling)
991 work = (GList *)(GTK_CTREE_ROW (work)->sibling);
992 GTK_CTREE_ROW (work)->sibling = node;
994 /* find last visible child of sibling */
995 work = (GList *) gtk_ctree_last_visible (ctree,
996 GTK_CTREE_NODE (work));
998 list_end->next = work->next;
1000 list = work->next->prev = list_end;
1001 work->next = (GList *)node;
1002 list = (GList *)node;
1007 GTK_CTREE_ROW (parent)->children = node;
1008 list = (GList *)node;
1009 list->prev = (GList *)parent;
1010 if (GTK_CTREE_ROW (parent)->expanded) {
1011 list_end->next = (GList *)GTK_CTREE_NODE_NEXT (parent);
1012 if (GTK_CTREE_NODE_NEXT(parent)) {
1013 list = (GList *)GTK_CTREE_NODE_NEXT (parent);
1014 list->prev = list_end;
1016 list = (GList *)parent;
1017 list->next = (GList *)node;
1020 list_end->next = NULL;
1023 clist->row_list = (GList *)node;
1024 list = (GList *)node;
1026 list_end->next = NULL;
1031 gtk_ctree_pre_recursive (ctree, node, tree_update_level, NULL);
1033 if (clist->row_list_end == NULL ||
1034 clist->row_list_end->next == (GList *)node)
1035 clist->row_list_end = list_end;
1037 if (visible && update_focus_row) {
1040 pos = g_list_position (clist->row_list, (GList *)node);
1042 if (pos <= clist->focus_row) {
1043 clist->focus_row += rows;
1044 clist->undo_anchor = clist->focus_row;
1050 tree_update_level (GtkCTree *ctree,
1057 if (GTK_CTREE_ROW (node)->parent)
1058 GTK_CTREE_ROW (node)->level =
1059 GTK_CTREE_ROW (GTK_CTREE_ROW (node)->parent)->level + 1;
1061 GTK_CTREE_ROW (node)->level = 1;
1064 static GtkCTreeNode *
1065 gtk_ctree_last_visible (GtkCTree *ctree,
1073 work = GTK_CTREE_ROW (node)->children;
1075 if (!work || !GTK_CTREE_ROW (node)->expanded)
1078 while (GTK_CTREE_ROW (work)->sibling)
1079 work = GTK_CTREE_ROW (work)->sibling;
1081 return gtk_ctree_last_visible (ctree, work);