1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
31 #include "gdk/gdkkeysyms.h"
32 #include "gtkbindings.h"
34 #include "gtkmarshalers.h"
35 #include "gtkorientable.h"
36 #include "gtkwindow.h"
38 #include "gtkprivate.h"
44 * @Short_description: Base class for widgets with two adjustable panes
47 * #GtkPaned is the base class for widgets with two panes, arranged either
48 * horizontally (#GtkHPaned) or vertically (#GtkVPaned). Child widgets are
49 * added to the panes of the widget with gtk_paned_pack1() and
50 * gtk_paned_pack2(). The division between the two children is set by default
51 * from the size requests of the children, but it can be adjusted by the
54 * A paned widget draws a separator between the two child widgets and a
55 * small handle that the user can drag to adjust the division. It does not
56 * draw any relief around the children or around the separator. (The space
57 * in which the separator is called the gutter.) Often, it is useful to put
58 * each child inside a #GtkFrame with the shadow type set to %GTK_SHADOW_IN
59 * so that the gutter appears as a ridge. No separator is drawn if one of
60 * the children is missing.
62 * Each child has two options that can be set, @resize and @shrink. If
63 * @resize is true, then when the #GtkPaned is resized, that child will
64 * expand or shrink along with the paned widget. If @shrink is true, then
65 * that child can be made smaller than its requisition by the user.
66 * Setting @shrink to %FALSE allows the application to set a minimum size.
67 * If @resize is false for both children, then this is treated as if
68 * @resize is true for both children.
70 * The application can set the position of the slider as if it were set
71 * by the user, by calling gtk_paned_set_position().
74 * <title>Creating a paned widget with minimum sizes.</title>
76 * GtkWidget *hpaned = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
77 * GtkWidget *frame1 = gtk_frame_new (NULL);
78 * GtkWidget *frame2 = gtk_frame_new (NULL);
79 * gtk_frame_set_shadow_type (GTK_FRAME (frame1), GTK_SHADOW_IN);
80 * gtk_frame_set_shadow_type (GTK_FRAME (frame2), GTK_SHADOW_IN);
82 * gtk_widget_set_size_request (hpaned, 200, -1);
84 * gtk_paned_pack1 (GTK_PANED (hpaned), frame1, TRUE, FALSE);
85 * gtk_widget_set_size_request (frame1, 50, -1);
87 * gtk_paned_pack2 (GTK_PANED (hpaned), frame2, FALSE, FALSE);
88 * gtk_widget_set_size_request (frame2, 50, -1);
93 struct _GtkPanedPrivate
95 GtkOrientation orientation;
96 GtkPaned *first_paned;
99 GtkWidget *last_child1_focus;
100 GtkWidget *last_child2_focus;
101 GtkWidget *saved_focus;
103 GdkCursorType cursor_type;
104 GdkDevice *grab_device;
105 GdkRectangle handle_pos;
110 gint last_allocation;
113 gint original_position;
115 guint handle_prelit : 1;
117 guint in_recursion : 1;
118 guint child1_resize : 1;
119 guint child1_shrink : 1;
120 guint child2_resize : 1;
121 guint child2_shrink : 1;
122 guint position_set : 1;
152 static void gtk_paned_set_property (GObject *object,
156 static void gtk_paned_get_property (GObject *object,
160 static void gtk_paned_set_child_property (GtkContainer *container,
165 static void gtk_paned_get_child_property (GtkContainer *container,
170 static void gtk_paned_finalize (GObject *object);
172 static void gtk_paned_get_preferred_width (GtkWidget *widget,
175 static void gtk_paned_get_preferred_height (GtkWidget *widget,
179 static void gtk_paned_size_allocate (GtkWidget *widget,
180 GtkAllocation *allocation);
181 static void gtk_paned_realize (GtkWidget *widget);
182 static void gtk_paned_unrealize (GtkWidget *widget);
183 static void gtk_paned_map (GtkWidget *widget);
184 static void gtk_paned_unmap (GtkWidget *widget);
185 static void gtk_paned_state_changed (GtkWidget *widget,
186 GtkStateType previous_state);
187 static gboolean gtk_paned_draw (GtkWidget *widget,
189 static gboolean gtk_paned_enter (GtkWidget *widget,
190 GdkEventCrossing *event);
191 static gboolean gtk_paned_leave (GtkWidget *widget,
192 GdkEventCrossing *event);
193 static gboolean gtk_paned_button_press (GtkWidget *widget,
194 GdkEventButton *event);
195 static gboolean gtk_paned_button_release (GtkWidget *widget,
196 GdkEventButton *event);
197 static gboolean gtk_paned_motion (GtkWidget *widget,
198 GdkEventMotion *event);
199 static gboolean gtk_paned_focus (GtkWidget *widget,
200 GtkDirectionType direction);
201 static gboolean gtk_paned_grab_broken (GtkWidget *widget,
202 GdkEventGrabBroken *event);
203 static void gtk_paned_add (GtkContainer *container,
205 static void gtk_paned_remove (GtkContainer *container,
207 static void gtk_paned_forall (GtkContainer *container,
208 gboolean include_internals,
209 GtkCallback callback,
210 gpointer callback_data);
211 static void gtk_paned_calc_position (GtkPaned *paned,
215 static void gtk_paned_set_focus_child (GtkContainer *container,
217 static void gtk_paned_set_saved_focus (GtkPaned *paned,
219 static void gtk_paned_set_first_paned (GtkPaned *paned,
220 GtkPaned *first_paned);
221 static void gtk_paned_set_last_child1_focus (GtkPaned *paned,
223 static void gtk_paned_set_last_child2_focus (GtkPaned *paned,
225 static gboolean gtk_paned_cycle_child_focus (GtkPaned *paned,
227 static gboolean gtk_paned_cycle_handle_focus (GtkPaned *paned,
229 static gboolean gtk_paned_move_handle (GtkPaned *paned,
230 GtkScrollType scroll);
231 static gboolean gtk_paned_accept_position (GtkPaned *paned);
232 static gboolean gtk_paned_cancel_position (GtkPaned *paned);
233 static gboolean gtk_paned_toggle_handle_focus (GtkPaned *paned);
235 static GType gtk_paned_child_type (GtkContainer *container);
236 static void gtk_paned_grab_notify (GtkWidget *widget,
237 gboolean was_grabbed);
240 G_DEFINE_TYPE_WITH_CODE (GtkPaned, gtk_paned, GTK_TYPE_CONTAINER,
241 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
244 static guint signals[LAST_SIGNAL] = { 0 };
248 add_tab_bindings (GtkBindingSet *binding_set,
249 GdkModifierType modifiers)
251 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, modifiers,
252 "toggle-handle-focus", 0);
253 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, modifiers,
254 "toggle-handle-focus", 0);
258 add_move_binding (GtkBindingSet *binding_set,
260 GdkModifierType mask,
261 GtkScrollType scroll)
263 gtk_binding_entry_add_signal (binding_set, keyval, mask,
265 GTK_TYPE_SCROLL_TYPE, scroll);
269 gtk_paned_class_init (GtkPanedClass *class)
271 GObjectClass *object_class;
272 GtkWidgetClass *widget_class;
273 GtkContainerClass *container_class;
274 GtkPanedClass *paned_class;
275 GtkBindingSet *binding_set;
277 object_class = (GObjectClass *) class;
278 widget_class = (GtkWidgetClass *) class;
279 container_class = (GtkContainerClass *) class;
280 paned_class = (GtkPanedClass *) class;
282 object_class->set_property = gtk_paned_set_property;
283 object_class->get_property = gtk_paned_get_property;
284 object_class->finalize = gtk_paned_finalize;
286 widget_class->get_preferred_width = gtk_paned_get_preferred_width;
287 widget_class->get_preferred_height = gtk_paned_get_preferred_height;
288 widget_class->size_allocate = gtk_paned_size_allocate;
289 widget_class->realize = gtk_paned_realize;
290 widget_class->unrealize = gtk_paned_unrealize;
291 widget_class->map = gtk_paned_map;
292 widget_class->unmap = gtk_paned_unmap;
293 widget_class->draw = gtk_paned_draw;
294 widget_class->focus = gtk_paned_focus;
295 widget_class->enter_notify_event = gtk_paned_enter;
296 widget_class->leave_notify_event = gtk_paned_leave;
297 widget_class->button_press_event = gtk_paned_button_press;
298 widget_class->button_release_event = gtk_paned_button_release;
299 widget_class->motion_notify_event = gtk_paned_motion;
300 widget_class->grab_broken_event = gtk_paned_grab_broken;
301 widget_class->grab_notify = gtk_paned_grab_notify;
302 widget_class->state_changed = gtk_paned_state_changed;
304 container_class->add = gtk_paned_add;
305 container_class->remove = gtk_paned_remove;
306 container_class->forall = gtk_paned_forall;
307 container_class->child_type = gtk_paned_child_type;
308 container_class->set_focus_child = gtk_paned_set_focus_child;
309 container_class->set_child_property = gtk_paned_set_child_property;
310 container_class->get_child_property = gtk_paned_get_child_property;
311 gtk_container_class_handle_border_width (container_class);
313 paned_class->cycle_child_focus = gtk_paned_cycle_child_focus;
314 paned_class->toggle_handle_focus = gtk_paned_toggle_handle_focus;
315 paned_class->move_handle = gtk_paned_move_handle;
316 paned_class->cycle_handle_focus = gtk_paned_cycle_handle_focus;
317 paned_class->accept_position = gtk_paned_accept_position;
318 paned_class->cancel_position = gtk_paned_cancel_position;
320 g_object_class_override_property (object_class,
324 g_object_class_install_property (object_class,
326 g_param_spec_int ("position",
328 P_("Position of paned separator in pixels (0 means all the way to the left/top)"),
332 GTK_PARAM_READWRITE));
334 g_object_class_install_property (object_class,
336 g_param_spec_boolean ("position-set",
338 P_("TRUE if the Position property should be used"),
340 GTK_PARAM_READWRITE));
342 gtk_widget_class_install_style_property (widget_class,
343 g_param_spec_int ("handle-size",
345 P_("Width of handle"),
349 GTK_PARAM_READABLE));
351 * GtkPaned:min-position:
353 * The smallest possible value for the position property. This property is derived from the
354 * size and shrinkability of the widget's children.
358 g_object_class_install_property (object_class,
360 g_param_spec_int ("min-position",
361 P_("Minimal Position"),
362 P_("Smallest possible value for the \"position\" property"),
366 GTK_PARAM_READABLE));
369 * GtkPaned:max-position:
371 * The largest possible value for the position property. This property is derived from the
372 * size and shrinkability of the widget's children.
376 g_object_class_install_property (object_class,
378 g_param_spec_int ("max-position",
379 P_("Maximal Position"),
380 P_("Largest possible value for the \"position\" property"),
384 GTK_PARAM_READABLE));
389 * The "resize" child property determines whether the child expands and
390 * shrinks along with the paned widget.
394 gtk_container_class_install_child_property (container_class,
396 g_param_spec_boolean ("resize",
398 P_("If TRUE, the child expands and shrinks along with the paned widget"),
400 GTK_PARAM_READWRITE));
405 * The "shrink" child property determines whether the child can be made
406 * smaller than its requisition.
410 gtk_container_class_install_child_property (container_class,
412 g_param_spec_boolean ("shrink",
414 P_("If TRUE, the child can be made smaller than its requisition"),
416 GTK_PARAM_READWRITE));
419 * GtkPaned::cycle-child-focus:
420 * @widget: the object that received the signal
421 * @reversed: whether cycling backward or forward
423 * The ::cycle-child-focus signal is a
424 * <link linkend="keybinding-signals">keybinding signal</link>
425 * which gets emitted to cycle the focus between the children of the paned.
427 * The default binding is f6.
431 signals [CYCLE_CHILD_FOCUS] =
432 g_signal_new (I_("cycle-child-focus"),
433 G_TYPE_FROM_CLASS (object_class),
434 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
435 G_STRUCT_OFFSET (GtkPanedClass, cycle_child_focus),
437 _gtk_marshal_BOOLEAN__BOOLEAN,
442 * GtkPaned::toggle-handle-focus:
443 * @widget: the object that received the signal
445 * The ::toggle-handle-focus is a
446 * <link linkend="keybinding-signals">keybinding signal</link>
447 * which gets emitted to accept the current position of the handle and then
448 * move focus to the next widget in the focus chain.
450 * The default binding is Tab.
454 signals [TOGGLE_HANDLE_FOCUS] =
455 g_signal_new (I_("toggle-handle-focus"),
456 G_TYPE_FROM_CLASS (object_class),
457 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
458 G_STRUCT_OFFSET (GtkPanedClass, toggle_handle_focus),
460 _gtk_marshal_BOOLEAN__VOID,
464 * GtkPaned::move-handle:
465 * @widget: the object that received the signal
466 * @scroll_type: a #GtkScrollType
468 * The ::move-handle signal is a
469 * <link linkend="keybinding-signals">keybinding signal</link>
470 * which gets emitted to move the handle when the user is using key bindings
475 signals[MOVE_HANDLE] =
476 g_signal_new (I_("move-handle"),
477 G_TYPE_FROM_CLASS (object_class),
478 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
479 G_STRUCT_OFFSET (GtkPanedClass, move_handle),
481 _gtk_marshal_BOOLEAN__ENUM,
483 GTK_TYPE_SCROLL_TYPE);
486 * GtkPaned::cycle-handle-focus:
487 * @widget: the object that received the signal
488 * @reversed: whether cycling backward or forward
490 * The ::cycle-handle-focus signal is a
491 * <link linkend="keybinding-signals">keybinding signal</link>
492 * which gets emitted to cycle whether the paned should grab focus to allow
493 * the user to change position of the handle by using key bindings.
495 * The default binding for this signal is f8.
499 signals [CYCLE_HANDLE_FOCUS] =
500 g_signal_new (I_("cycle-handle-focus"),
501 G_TYPE_FROM_CLASS (object_class),
502 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
503 G_STRUCT_OFFSET (GtkPanedClass, cycle_handle_focus),
505 _gtk_marshal_BOOLEAN__BOOLEAN,
510 * GtkPaned::accept-position:
511 * @widget: the object that received the signal
513 * The ::accept-position signal is a
514 * <link linkend="keybinding-signals">keybinding signal</link>
515 * which gets emitted to accept the current position of the handle when
516 * moving it using key bindings.
518 * The default binding for this signal is Return or Space.
522 signals [ACCEPT_POSITION] =
523 g_signal_new (I_("accept-position"),
524 G_TYPE_FROM_CLASS (object_class),
525 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
526 G_STRUCT_OFFSET (GtkPanedClass, accept_position),
528 _gtk_marshal_BOOLEAN__VOID,
532 * GtkPaned::cancel-position:
533 * @widget: the object that received the signal
535 * The ::cancel-position signal is a
536 * <link linkend="keybinding-signals">keybinding signal</link>
537 * which gets emitted to cancel moving the position of the handle using key
538 * bindings. The position of the handle will be reset to the value prior to
541 * The default binding for this signal is Escape.
545 signals [CANCEL_POSITION] =
546 g_signal_new (I_("cancel-position"),
547 G_TYPE_FROM_CLASS (object_class),
548 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
549 G_STRUCT_OFFSET (GtkPanedClass, cancel_position),
551 _gtk_marshal_BOOLEAN__VOID,
554 binding_set = gtk_binding_set_by_class (class);
557 gtk_binding_entry_add_signal (binding_set,
559 "cycle-child-focus", 1,
560 G_TYPE_BOOLEAN, FALSE);
561 gtk_binding_entry_add_signal (binding_set,
562 GDK_KEY_F6, GDK_SHIFT_MASK,
563 "cycle-child-focus", 1,
564 G_TYPE_BOOLEAN, TRUE);
567 gtk_binding_entry_add_signal (binding_set,
569 "cycle-handle-focus", 1,
570 G_TYPE_BOOLEAN, FALSE);
572 gtk_binding_entry_add_signal (binding_set,
573 GDK_KEY_F8, GDK_SHIFT_MASK,
574 "cycle-handle-focus", 1,
575 G_TYPE_BOOLEAN, TRUE);
577 add_tab_bindings (binding_set, 0);
578 add_tab_bindings (binding_set, GDK_CONTROL_MASK);
579 add_tab_bindings (binding_set, GDK_SHIFT_MASK);
580 add_tab_bindings (binding_set, GDK_CONTROL_MASK | GDK_SHIFT_MASK);
582 /* accept and cancel positions */
583 gtk_binding_entry_add_signal (binding_set,
585 "cancel-position", 0);
587 gtk_binding_entry_add_signal (binding_set,
589 "accept-position", 0);
590 gtk_binding_entry_add_signal (binding_set,
591 GDK_KEY_ISO_Enter, 0,
592 "accept-position", 0);
593 gtk_binding_entry_add_signal (binding_set,
595 "accept-position", 0);
596 gtk_binding_entry_add_signal (binding_set,
598 "accept-position", 0);
599 gtk_binding_entry_add_signal (binding_set,
601 "accept-position", 0);
604 add_move_binding (binding_set, GDK_KEY_Left, 0, GTK_SCROLL_STEP_LEFT);
605 add_move_binding (binding_set, GDK_KEY_KP_Left, 0, GTK_SCROLL_STEP_LEFT);
606 add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_LEFT);
607 add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_LEFT);
609 add_move_binding (binding_set, GDK_KEY_Right, 0, GTK_SCROLL_STEP_RIGHT);
610 add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_RIGHT);
611 add_move_binding (binding_set, GDK_KEY_KP_Right, 0, GTK_SCROLL_STEP_RIGHT);
612 add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_RIGHT);
614 add_move_binding (binding_set, GDK_KEY_Up, 0, GTK_SCROLL_STEP_UP);
615 add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_UP);
616 add_move_binding (binding_set, GDK_KEY_KP_Up, 0, GTK_SCROLL_STEP_UP);
617 add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_UP);
618 add_move_binding (binding_set, GDK_KEY_Page_Up, 0, GTK_SCROLL_PAGE_UP);
619 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, GTK_SCROLL_PAGE_UP);
621 add_move_binding (binding_set, GDK_KEY_Down, 0, GTK_SCROLL_STEP_DOWN);
622 add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_DOWN);
623 add_move_binding (binding_set, GDK_KEY_KP_Down, 0, GTK_SCROLL_STEP_DOWN);
624 add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_DOWN);
625 add_move_binding (binding_set, GDK_KEY_Page_Down, 0, GTK_SCROLL_PAGE_RIGHT);
626 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, GTK_SCROLL_PAGE_RIGHT);
628 add_move_binding (binding_set, GDK_KEY_Home, 0, GTK_SCROLL_START);
629 add_move_binding (binding_set, GDK_KEY_KP_Home, 0, GTK_SCROLL_START);
630 add_move_binding (binding_set, GDK_KEY_End, 0, GTK_SCROLL_END);
631 add_move_binding (binding_set, GDK_KEY_KP_End, 0, GTK_SCROLL_END);
633 g_type_class_add_private (object_class, sizeof (GtkPanedPrivate));
637 gtk_paned_child_type (GtkContainer *container)
639 GtkPaned *paned = GTK_PANED (container);
640 GtkPanedPrivate *priv = paned->priv;
642 if (!priv->child1 || !priv->child2)
643 return GTK_TYPE_WIDGET;
649 gtk_paned_init (GtkPaned *paned)
651 GtkPanedPrivate *priv;
653 gtk_widget_set_has_window (GTK_WIDGET (paned), FALSE);
654 gtk_widget_set_can_focus (GTK_WIDGET (paned), TRUE);
656 /* We only need to redraw when the handle position moves, which is
657 * independent of the overall allocation of the GtkPaned
659 gtk_widget_set_redraw_on_allocate (GTK_WIDGET (paned), FALSE);
661 paned->priv = G_TYPE_INSTANCE_GET_PRIVATE (paned, GTK_TYPE_PANED, GtkPanedPrivate);
664 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
665 priv->cursor_type = GDK_SB_H_DOUBLE_ARROW;
670 priv->cursor_type = GDK_CROSS;
672 priv->handle_pos.width = 5;
673 priv->handle_pos.height = 5;
674 priv->position_set = FALSE;
675 priv->last_allocation = -1;
676 priv->in_drag = FALSE;
678 priv->last_child1_focus = NULL;
679 priv->last_child2_focus = NULL;
680 priv->in_recursion = FALSE;
681 priv->handle_prelit = FALSE;
682 priv->original_position = -1;
684 priv->handle_pos.x = -1;
685 priv->handle_pos.y = -1;
691 gtk_paned_set_property (GObject *object,
696 GtkPaned *paned = GTK_PANED (object);
697 GtkPanedPrivate *priv = paned->priv;
701 case PROP_ORIENTATION:
702 priv->orientation = g_value_get_enum (value);
704 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
705 priv->cursor_type = GDK_SB_H_DOUBLE_ARROW;
707 priv->cursor_type = GDK_SB_V_DOUBLE_ARROW;
709 /* state_changed updates the cursor */
710 gtk_paned_state_changed (GTK_WIDGET (paned), gtk_widget_get_state (GTK_WIDGET (paned)));
711 gtk_widget_queue_resize (GTK_WIDGET (paned));
714 gtk_paned_set_position (paned, g_value_get_int (value));
716 case PROP_POSITION_SET:
717 priv->position_set = g_value_get_boolean (value);
718 gtk_widget_queue_resize_no_redraw (GTK_WIDGET (paned));
721 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
727 gtk_paned_get_property (GObject *object,
732 GtkPaned *paned = GTK_PANED (object);
733 GtkPanedPrivate *priv = paned->priv;
737 case PROP_ORIENTATION:
738 g_value_set_enum (value, priv->orientation);
741 g_value_set_int (value, priv->child1_size);
743 case PROP_POSITION_SET:
744 g_value_set_boolean (value, priv->position_set);
746 case PROP_MIN_POSITION:
747 g_value_set_int (value, priv->min_position);
749 case PROP_MAX_POSITION:
750 g_value_set_int (value, priv->max_position);
753 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
759 gtk_paned_set_child_property (GtkContainer *container,
765 GtkPaned *paned = GTK_PANED (container);
766 GtkPanedPrivate *priv = paned->priv;
767 gboolean old_value, new_value;
769 g_assert (child == priv->child1 || child == priv->child2);
771 new_value = g_value_get_boolean (value);
774 case CHILD_PROP_RESIZE:
775 if (child == priv->child1)
777 old_value = priv->child1_resize;
778 priv->child1_resize = new_value;
782 old_value = priv->child2_resize;
783 priv->child2_resize = new_value;
786 case CHILD_PROP_SHRINK:
787 if (child == priv->child1)
789 old_value = priv->child1_shrink;
790 priv->child1_shrink = new_value;
794 old_value = priv->child2_shrink;
795 priv->child2_shrink = new_value;
799 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
800 old_value = -1; /* quiet gcc */
803 if (old_value != new_value)
804 gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container));
808 gtk_paned_get_child_property (GtkContainer *container,
814 GtkPaned *paned = GTK_PANED (container);
815 GtkPanedPrivate *priv = paned->priv;
817 g_assert (child == priv->child1 || child == priv->child2);
821 case CHILD_PROP_RESIZE:
822 if (child == priv->child1)
823 g_value_set_boolean (value, priv->child1_resize);
825 g_value_set_boolean (value, priv->child2_resize);
827 case CHILD_PROP_SHRINK:
828 if (child == priv->child1)
829 g_value_set_boolean (value, priv->child1_shrink);
831 g_value_set_boolean (value, priv->child2_shrink);
834 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
840 gtk_paned_finalize (GObject *object)
842 GtkPaned *paned = GTK_PANED (object);
844 gtk_paned_set_saved_focus (paned, NULL);
845 gtk_paned_set_first_paned (paned, NULL);
847 G_OBJECT_CLASS (gtk_paned_parent_class)->finalize (object);
851 gtk_paned_get_preferred_size (GtkWidget *widget,
852 GtkOrientation orientation,
856 GtkPaned *paned = GTK_PANED (widget);
857 GtkPanedPrivate *priv = paned->priv;
858 gint child_min, child_nat;
860 *minimum = *natural = 0;
862 if (priv->child1 && gtk_widget_get_visible (priv->child1))
864 if (orientation == GTK_ORIENTATION_HORIZONTAL)
865 gtk_widget_get_preferred_width (priv->child1, &child_min, &child_nat);
867 gtk_widget_get_preferred_height (priv->child1, &child_min, &child_nat);
869 *minimum = child_min;
870 *natural = child_nat;
873 if (priv->child2 && gtk_widget_get_visible (priv->child2))
875 if (orientation == GTK_ORIENTATION_HORIZONTAL)
876 gtk_widget_get_preferred_width (priv->child2, &child_min, &child_nat);
878 gtk_widget_get_preferred_height (priv->child2, &child_min, &child_nat);
880 if (priv->orientation == orientation)
882 *minimum += child_min;
883 *natural += child_nat;
887 *minimum = MAX (*minimum, child_min);
888 *natural = MAX (*natural, child_nat);
892 if (priv->child1 && gtk_widget_get_visible (priv->child1) &&
893 priv->child2 && gtk_widget_get_visible (priv->child2))
897 gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
899 if (priv->orientation == orientation)
901 *minimum += handle_size;
902 *natural += handle_size;
908 gtk_paned_get_preferred_width (GtkWidget *widget,
912 gtk_paned_get_preferred_size (widget, GTK_ORIENTATION_HORIZONTAL, minimum, natural);
916 gtk_paned_get_preferred_height (GtkWidget *widget,
920 gtk_paned_get_preferred_size (widget, GTK_ORIENTATION_VERTICAL, minimum, natural);
924 flip_child (GtkWidget *widget,
925 GtkAllocation *child_pos)
927 GtkAllocation allocation;
930 gtk_widget_get_allocation (widget, &allocation);
932 width = allocation.width;
934 child_pos->x = 2 * x + width - child_pos->x - child_pos->width;
938 gtk_paned_size_allocate (GtkWidget *widget,
939 GtkAllocation *allocation)
941 GtkPaned *paned = GTK_PANED (widget);
942 GtkPanedPrivate *priv = paned->priv;
943 GtkAllocation widget_allocation;
945 gtk_widget_set_allocation (widget, allocation);
947 if (priv->child1 && gtk_widget_get_visible (priv->child1) &&
948 priv->child2 && gtk_widget_get_visible (priv->child2))
950 GtkRequisition child1_requisition;
951 GtkRequisition child2_requisition;
952 GtkAllocation child1_allocation;
953 GtkAllocation child2_allocation;
954 GtkAllocation priv_child1_allocation;
955 GdkRectangle old_handle_pos;
958 gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
960 gtk_widget_get_preferred_size (priv->child1, &child1_requisition, NULL);
961 gtk_widget_get_preferred_size (priv->child2, &child2_requisition, NULL);
963 old_handle_pos = priv->handle_pos;
965 gtk_widget_get_allocation (widget, &widget_allocation);
967 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
969 gtk_paned_calc_position (paned,
970 MAX (1, widget_allocation.width - handle_size),
971 child1_requisition.width,
972 child2_requisition.width);
974 priv->handle_pos.x = widget_allocation.x + priv->child1_size;
975 priv->handle_pos.y = widget_allocation.y;
976 priv->handle_pos.width = handle_size;
977 priv->handle_pos.height = widget_allocation.height;
979 child1_allocation.height = child2_allocation.height = allocation->height;
980 child1_allocation.width = MAX (1, priv->child1_size);
981 child1_allocation.x = widget_allocation.x;
982 child1_allocation.y = child2_allocation.y = widget_allocation.y;
984 child2_allocation.x = child1_allocation.x + priv->child1_size + priv->handle_pos.width;
985 child2_allocation.width = MAX (1, widget_allocation.x + widget_allocation.width - child2_allocation.x);
987 if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
989 flip_child (widget, &(child2_allocation));
990 flip_child (widget, &(child1_allocation));
991 flip_child (widget, &(priv->handle_pos));
996 gtk_paned_calc_position (paned,
997 MAX (1, widget_allocation.height - handle_size),
998 child1_requisition.height,
999 child2_requisition.height);
1001 priv->handle_pos.x = widget_allocation.x;
1002 priv->handle_pos.y = widget_allocation.y + priv->child1_size;
1003 priv->handle_pos.width = widget_allocation.width;
1004 priv->handle_pos.height = handle_size;
1006 child1_allocation.width = child2_allocation.width = allocation->width;
1007 child1_allocation.height = MAX (1, priv->child1_size);
1008 child1_allocation.x = child2_allocation.x = widget_allocation.x;
1009 child1_allocation.y = widget_allocation.y;
1011 child2_allocation.y = child1_allocation.y + priv->child1_size + priv->handle_pos.height;
1012 child2_allocation.height = MAX (1, widget_allocation.y + widget_allocation.height - child2_allocation.y);
1015 if (gtk_widget_get_mapped (widget) &&
1016 (old_handle_pos.x != priv->handle_pos.x ||
1017 old_handle_pos.y != priv->handle_pos.y ||
1018 old_handle_pos.width != priv->handle_pos.width ||
1019 old_handle_pos.height != priv->handle_pos.height))
1023 window = gtk_widget_get_window (widget);
1024 gdk_window_invalidate_rect (window, &old_handle_pos, FALSE);
1025 gdk_window_invalidate_rect (window, &priv->handle_pos, FALSE);
1028 if (gtk_widget_get_realized (widget))
1030 if (gtk_widget_get_mapped (widget))
1031 gdk_window_show (priv->handle);
1033 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1035 gdk_window_move_resize (priv->handle,
1039 priv->handle_pos.height);
1043 gdk_window_move_resize (priv->handle,
1046 priv->handle_pos.width,
1051 /* Now allocate the childen, making sure, when resizing not to
1052 * overlap the windows
1054 gtk_widget_get_allocation (priv->child1, &priv_child1_allocation);
1055 if (gtk_widget_get_mapped (widget) &&
1056 ((priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
1057 priv_child1_allocation.width < child1_allocation.width) ||
1059 (priv->orientation == GTK_ORIENTATION_VERTICAL &&
1060 priv_child1_allocation.height < child1_allocation.height)))
1062 gtk_widget_size_allocate (priv->child2, &child2_allocation);
1063 gtk_widget_size_allocate (priv->child1, &child1_allocation);
1067 gtk_widget_size_allocate (priv->child1, &child1_allocation);
1068 gtk_widget_size_allocate (priv->child2, &child2_allocation);
1073 GtkAllocation child_allocation;
1075 if (gtk_widget_get_realized (widget))
1076 gdk_window_hide (priv->handle);
1079 gtk_widget_set_child_visible (priv->child1, TRUE);
1081 gtk_widget_set_child_visible (priv->child2, TRUE);
1083 gtk_widget_get_allocation (widget, &widget_allocation);
1085 child_allocation.x = widget_allocation.x;
1086 child_allocation.y = widget_allocation.y;
1087 child_allocation.width = allocation->width;
1088 child_allocation.height = allocation->height;
1090 if (priv->child1 && gtk_widget_get_visible (priv->child1))
1091 gtk_widget_size_allocate (priv->child1, &child_allocation);
1092 else if (priv->child2 && gtk_widget_get_visible (priv->child2))
1093 gtk_widget_size_allocate (priv->child2, &child_allocation);
1098 gtk_paned_realize (GtkWidget *widget)
1100 GtkPaned *paned = GTK_PANED (widget);
1101 GtkPanedPrivate *priv = paned->priv;
1103 GdkWindowAttr attributes;
1104 gint attributes_mask;
1106 gtk_widget_set_realized (widget, TRUE);
1108 window = gtk_widget_get_parent_window (widget);
1109 gtk_widget_set_window (widget, window);
1110 g_object_ref (window);
1112 attributes.window_type = GDK_WINDOW_CHILD;
1113 attributes.wclass = GDK_INPUT_ONLY;
1114 attributes.x = priv->handle_pos.x;
1115 attributes.y = priv->handle_pos.y;
1116 attributes.width = priv->handle_pos.width;
1117 attributes.height = priv->handle_pos.height;
1118 attributes.event_mask = gtk_widget_get_events (widget);
1119 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1120 GDK_BUTTON_RELEASE_MASK |
1121 GDK_ENTER_NOTIFY_MASK |
1122 GDK_LEAVE_NOTIFY_MASK |
1123 GDK_POINTER_MOTION_MASK |
1124 GDK_POINTER_MOTION_HINT_MASK);
1125 attributes_mask = GDK_WA_X | GDK_WA_Y;
1126 if (gtk_widget_is_sensitive (widget))
1128 attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
1130 attributes_mask |= GDK_WA_CURSOR;
1133 priv->handle = gdk_window_new (window,
1134 &attributes, attributes_mask);
1135 gdk_window_set_user_data (priv->handle, paned);
1136 if (attributes_mask & GDK_WA_CURSOR)
1137 gdk_cursor_unref (attributes.cursor);
1139 gtk_widget_style_attach (widget);
1141 if (priv->child1 && gtk_widget_get_visible (priv->child1) &&
1142 priv->child2 && gtk_widget_get_visible (priv->child2))
1143 gdk_window_show (priv->handle);
1147 gtk_paned_unrealize (GtkWidget *widget)
1149 GtkPaned *paned = GTK_PANED (widget);
1150 GtkPanedPrivate *priv = paned->priv;
1154 gdk_window_set_user_data (priv->handle, NULL);
1155 gdk_window_destroy (priv->handle);
1156 priv->handle = NULL;
1159 gtk_paned_set_last_child1_focus (paned, NULL);
1160 gtk_paned_set_last_child2_focus (paned, NULL);
1161 gtk_paned_set_saved_focus (paned, NULL);
1162 gtk_paned_set_first_paned (paned, NULL);
1164 GTK_WIDGET_CLASS (gtk_paned_parent_class)->unrealize (widget);
1168 gtk_paned_map (GtkWidget *widget)
1170 GtkPaned *paned = GTK_PANED (widget);
1171 GtkPanedPrivate *priv = paned->priv;
1173 gdk_window_show (priv->handle);
1175 GTK_WIDGET_CLASS (gtk_paned_parent_class)->map (widget);
1179 gtk_paned_unmap (GtkWidget *widget)
1181 GtkPaned *paned = GTK_PANED (widget);
1182 GtkPanedPrivate *priv = paned->priv;
1184 gdk_window_hide (priv->handle);
1186 GTK_WIDGET_CLASS (gtk_paned_parent_class)->unmap (widget);
1190 gtk_paned_draw (GtkWidget *widget,
1193 GtkPaned *paned = GTK_PANED (widget);
1194 GtkPanedPrivate *priv = paned->priv;
1196 if (gtk_widget_get_visible (widget) && gtk_widget_get_mapped (widget) &&
1197 priv->child1 && gtk_widget_get_visible (priv->child1) &&
1198 priv->child2 && gtk_widget_get_visible (priv->child2))
1201 GtkAllocation allocation;
1203 gtk_widget_get_allocation (widget, &allocation);
1205 if (gtk_widget_is_focus (widget))
1206 state = GTK_STATE_SELECTED;
1207 else if (priv->handle_prelit)
1208 state = GTK_STATE_PRELIGHT;
1210 state = gtk_widget_get_state (widget);
1212 gtk_paint_handle (gtk_widget_get_style (widget),
1214 state, GTK_SHADOW_NONE,
1216 priv->handle_pos.x - allocation.x,
1217 priv->handle_pos.y - allocation.y,
1218 priv->handle_pos.width,
1219 priv->handle_pos.height,
1220 !priv->orientation);
1223 /* Chain up to draw children */
1224 GTK_WIDGET_CLASS (gtk_paned_parent_class)->draw (widget, cr);
1230 is_rtl (GtkPaned *paned)
1232 GtkPanedPrivate *priv = paned->priv;
1234 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
1235 gtk_widget_get_direction (GTK_WIDGET (paned)) == GTK_TEXT_DIR_RTL)
1244 update_drag (GtkPaned *paned)
1246 GtkPanedPrivate *priv = paned->priv;
1247 GtkAllocation allocation;
1248 GtkWidget *widget = GTK_WIDGET (paned);
1253 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1254 gtk_widget_get_pointer (widget, &pos, NULL);
1256 gtk_widget_get_pointer (widget, NULL, &pos);
1258 pos -= priv->drag_pos;
1262 gtk_widget_style_get (widget,
1263 "handle-size", &handle_size,
1266 gtk_widget_get_allocation (widget, &allocation);
1267 size = allocation.width - pos - handle_size;
1274 size = CLAMP (size, priv->min_position, priv->max_position);
1276 if (size != priv->child1_size)
1277 gtk_paned_set_position (paned, size);
1281 gtk_paned_enter (GtkWidget *widget,
1282 GdkEventCrossing *event)
1284 GtkPaned *paned = GTK_PANED (widget);
1285 GtkPanedPrivate *priv = paned->priv;
1288 update_drag (paned);
1291 priv->handle_prelit = TRUE;
1292 gtk_widget_queue_draw_area (widget,
1295 priv->handle_pos.width,
1296 priv->handle_pos.height);
1303 gtk_paned_leave (GtkWidget *widget,
1304 GdkEventCrossing *event)
1306 GtkPaned *paned = GTK_PANED (widget);
1307 GtkPanedPrivate *priv = paned->priv;
1310 update_drag (paned);
1313 priv->handle_prelit = FALSE;
1314 gtk_widget_queue_draw_area (widget,
1317 priv->handle_pos.width,
1318 priv->handle_pos.height);
1325 gtk_paned_focus (GtkWidget *widget,
1326 GtkDirectionType direction)
1331 /* This is a hack, but how can this be done without
1332 * excessive cut-and-paste from gtkcontainer.c?
1335 gtk_widget_set_can_focus (widget, FALSE);
1336 retval = GTK_WIDGET_CLASS (gtk_paned_parent_class)->focus (widget, direction);
1337 gtk_widget_set_can_focus (widget, TRUE);
1343 gtk_paned_button_press (GtkWidget *widget,
1344 GdkEventButton *event)
1346 GtkPaned *paned = GTK_PANED (widget);
1347 GtkPanedPrivate *priv = paned->priv;
1349 if (!priv->in_drag &&
1350 (event->window == priv->handle) && (event->button == 1))
1352 /* We need a server grab here, not gtk_grab_add(), since
1353 * we don't want to pass events on to the widget's children */
1354 if (gdk_device_grab (event->device,
1356 GDK_OWNERSHIP_WINDOW, FALSE,
1357 GDK_POINTER_MOTION_HINT_MASK
1358 | GDK_BUTTON1_MOTION_MASK
1359 | GDK_BUTTON_RELEASE_MASK
1360 | GDK_ENTER_NOTIFY_MASK
1361 | GDK_LEAVE_NOTIFY_MASK,
1362 NULL, event->time) != GDK_GRAB_SUCCESS)
1365 priv->in_drag = TRUE;
1366 priv->grab_time = event->time;
1367 priv->grab_device = event->device;
1369 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1370 priv->drag_pos = event->x;
1372 priv->drag_pos = event->y;
1381 gtk_paned_grab_broken (GtkWidget *widget,
1382 GdkEventGrabBroken *event)
1384 GtkPaned *paned = GTK_PANED (widget);
1385 GtkPanedPrivate *priv = paned->priv;
1387 priv->in_drag = FALSE;
1388 priv->drag_pos = -1;
1389 priv->position_set = TRUE;
1395 stop_drag (GtkPaned *paned)
1397 GtkPanedPrivate *priv = paned->priv;
1399 priv->in_drag = FALSE;
1400 priv->drag_pos = -1;
1401 priv->position_set = TRUE;
1403 gdk_device_ungrab (priv->grab_device,
1405 priv->grab_device = NULL;
1409 gtk_paned_grab_notify (GtkWidget *widget,
1410 gboolean was_grabbed)
1412 GtkPaned *paned = GTK_PANED (widget);
1413 GtkPanedPrivate *priv = paned->priv;
1414 GdkDevice *grab_device;
1416 grab_device = priv->grab_device;
1418 if (priv->in_drag && grab_device &&
1419 gtk_widget_device_is_shadowed (widget, grab_device))
1424 gtk_paned_state_changed (GtkWidget *widget,
1425 GtkStateType previous_state)
1427 GtkPaned *paned = GTK_PANED (widget);
1428 GtkPanedPrivate *priv = paned->priv;
1431 if (gtk_widget_get_realized (widget))
1433 if (gtk_widget_is_sensitive (widget))
1434 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
1439 gdk_window_set_cursor (priv->handle, cursor);
1442 gdk_cursor_unref (cursor);
1447 gtk_paned_button_release (GtkWidget *widget,
1448 GdkEventButton *event)
1450 GtkPaned *paned = GTK_PANED (widget);
1451 GtkPanedPrivate *priv = paned->priv;
1453 if (priv->in_drag && (event->button == 1))
1464 gtk_paned_motion (GtkWidget *widget,
1465 GdkEventMotion *event)
1467 GtkPaned *paned = GTK_PANED (widget);
1468 GtkPanedPrivate *priv = paned->priv;
1472 update_drag (paned);
1481 * @orientation: the paned's orientation.
1483 * Creates a new #GtkPaned widget.
1485 * Return value: a new #GtkPaned.
1490 gtk_paned_new (GtkOrientation orientation)
1492 return g_object_new (GTK_TYPE_PANED,
1493 "orientation", orientation,
1499 * @paned: a paned widget
1500 * @child: the child to add
1502 * Adds a child to the top or left pane with default parameters. This is
1504 * <literal>gtk_paned_pack1 (paned, child, FALSE, TRUE)</literal>.
1507 gtk_paned_add1 (GtkPaned *paned,
1510 gtk_paned_pack1 (paned, widget, FALSE, TRUE);
1515 * @paned: a paned widget
1516 * @child: the child to add
1518 * Adds a child to the bottom or right pane with default parameters. This
1520 * <literal>gtk_paned_pack2 (paned, child, TRUE, TRUE)</literal>.
1523 gtk_paned_add2 (GtkPaned *paned,
1526 gtk_paned_pack2 (paned, widget, TRUE, TRUE);
1531 * @paned: a paned widget
1532 * @child: the child to add
1533 * @resize: should this child expand when the paned widget is resized.
1534 * @shrink: can this child be made smaller than its requisition.
1536 * Adds a child to the top or left pane.
1539 gtk_paned_pack1 (GtkPaned *paned,
1544 GtkPanedPrivate *priv;
1546 g_return_if_fail (GTK_IS_PANED (paned));
1547 g_return_if_fail (GTK_IS_WIDGET (child));
1553 priv->child1 = child;
1554 priv->child1_resize = resize;
1555 priv->child1_shrink = shrink;
1557 gtk_widget_set_parent (child, GTK_WIDGET (paned));
1563 * @paned: a paned widget
1564 * @child: the child to add
1565 * @resize: should this child expand when the paned widget is resized.
1566 * @shrink: can this child be made smaller than its requisition.
1568 * Adds a child to the bottom or right pane.
1571 gtk_paned_pack2 (GtkPaned *paned,
1576 GtkPanedPrivate *priv;
1578 g_return_if_fail (GTK_IS_PANED (paned));
1579 g_return_if_fail (GTK_IS_WIDGET (child));
1585 priv->child2 = child;
1586 priv->child2_resize = resize;
1587 priv->child2_shrink = shrink;
1589 gtk_widget_set_parent (child, GTK_WIDGET (paned));
1595 gtk_paned_add (GtkContainer *container,
1598 GtkPanedPrivate *priv;
1601 g_return_if_fail (GTK_IS_PANED (container));
1603 paned = GTK_PANED (container);
1607 gtk_paned_add1 (paned, widget);
1608 else if (!priv->child2)
1609 gtk_paned_add2 (paned, widget);
1611 g_warning ("GtkPaned cannot have more than 2 children\n");
1615 gtk_paned_remove (GtkContainer *container,
1618 GtkPaned *paned = GTK_PANED (container);
1619 GtkPanedPrivate *priv = paned->priv;
1620 gboolean was_visible;
1622 was_visible = gtk_widget_get_visible (widget);
1624 if (priv->child1 == widget)
1626 gtk_widget_unparent (widget);
1628 priv->child1 = NULL;
1630 if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
1631 gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container));
1633 else if (priv->child2 == widget)
1635 gtk_widget_unparent (widget);
1637 priv->child2 = NULL;
1639 if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
1640 gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container));
1645 gtk_paned_forall (GtkContainer *container,
1646 gboolean include_internals,
1647 GtkCallback callback,
1648 gpointer callback_data)
1650 GtkPanedPrivate *priv;
1653 g_return_if_fail (callback != NULL);
1655 paned = GTK_PANED (container);
1659 (*callback) (priv->child1, callback_data);
1661 (*callback) (priv->child2, callback_data);
1665 * gtk_paned_get_position:
1666 * @paned: a #GtkPaned widget
1668 * Obtains the position of the divider between the two panes.
1670 * Return value: position of the divider
1673 gtk_paned_get_position (GtkPaned *paned)
1675 g_return_val_if_fail (GTK_IS_PANED (paned), 0);
1677 return paned->priv->child1_size;
1681 * gtk_paned_set_position:
1682 * @paned: a #GtkPaned widget
1683 * @position: pixel position of divider, a negative value means that the position
1686 * Sets the position of the divider between the two panes.
1689 gtk_paned_set_position (GtkPaned *paned,
1692 GtkPanedPrivate *priv;
1695 g_return_if_fail (GTK_IS_PANED (paned));
1699 if (priv->child1_size == position)
1702 object = G_OBJECT (paned);
1706 /* We don't clamp here - the assumption is that
1707 * if the total allocation changes at the same time
1708 * as the position, the position set is with reference
1709 * to the new total size. If only the position changes,
1710 * then clamping will occur in gtk_paned_calc_position()
1713 priv->child1_size = position;
1714 priv->position_set = TRUE;
1718 priv->position_set = FALSE;
1721 g_object_freeze_notify (object);
1722 g_object_notify (object, "position");
1723 g_object_notify (object, "position-set");
1724 g_object_thaw_notify (object);
1726 gtk_widget_queue_resize_no_redraw (GTK_WIDGET (paned));
1729 /* Hacky work-around for bug #144269 */
1730 if (priv->child2 != NULL)
1732 gtk_widget_queue_draw (priv->child2);
1738 * gtk_paned_get_child1:
1739 * @paned: a #GtkPaned widget
1741 * Obtains the first child of the paned widget.
1743 * Return value: (transfer none): first child, or %NULL if it is not set.
1748 gtk_paned_get_child1 (GtkPaned *paned)
1750 g_return_val_if_fail (GTK_IS_PANED (paned), NULL);
1752 return paned->priv->child1;
1756 * gtk_paned_get_child2:
1757 * @paned: a #GtkPaned widget
1759 * Obtains the second child of the paned widget.
1761 * Return value: (transfer none): second child, or %NULL if it is not set.
1766 gtk_paned_get_child2 (GtkPaned *paned)
1768 g_return_val_if_fail (GTK_IS_PANED (paned), NULL);
1770 return paned->priv->child2;
1774 gtk_paned_calc_position (GtkPaned *paned,
1779 GtkPanedPrivate *priv = paned->priv;
1781 gint old_min_position;
1782 gint old_max_position;
1784 old_position = priv->child1_size;
1785 old_min_position = priv->min_position;
1786 old_max_position = priv->max_position;
1788 priv->min_position = priv->child1_shrink ? 0 : child1_req;
1790 priv->max_position = allocation;
1791 if (!priv->child2_shrink)
1792 priv->max_position = MAX (1, priv->max_position - child2_req);
1793 priv->max_position = MAX (priv->min_position, priv->max_position);
1795 if (!priv->position_set)
1797 if (priv->child1_resize && !priv->child2_resize)
1798 priv->child1_size = MAX (0, allocation - child2_req);
1799 else if (!priv->child1_resize && priv->child2_resize)
1800 priv->child1_size = child1_req;
1801 else if (child1_req + child2_req != 0)
1802 priv->child1_size = allocation * ((gdouble)child1_req / (child1_req + child2_req)) + 0.5;
1804 priv->child1_size = allocation * 0.5 + 0.5;
1808 /* If the position was set before the initial allocation.
1809 * (priv->last_allocation <= 0) just clamp it and leave it.
1811 if (priv->last_allocation > 0)
1813 if (priv->child1_resize && !priv->child2_resize)
1814 priv->child1_size += allocation - priv->last_allocation;
1815 else if (!(!priv->child1_resize && priv->child2_resize))
1816 priv->child1_size = allocation * ((gdouble) priv->child1_size / (priv->last_allocation)) + 0.5;
1820 priv->child1_size = CLAMP (priv->child1_size,
1822 priv->max_position);
1825 gtk_widget_set_child_visible (priv->child1, priv->child1_size != 0);
1828 gtk_widget_set_child_visible (priv->child2, priv->child1_size != allocation);
1830 g_object_freeze_notify (G_OBJECT (paned));
1831 if (priv->child1_size != old_position)
1832 g_object_notify (G_OBJECT (paned), "position");
1833 if (priv->min_position != old_min_position)
1834 g_object_notify (G_OBJECT (paned), "min-position");
1835 if (priv->max_position != old_max_position)
1836 g_object_notify (G_OBJECT (paned), "max-position");
1837 g_object_thaw_notify (G_OBJECT (paned));
1839 priv->last_allocation = allocation;
1843 gtk_paned_set_saved_focus (GtkPaned *paned, GtkWidget *widget)
1845 GtkPanedPrivate *priv = paned->priv;
1847 if (priv->saved_focus)
1848 g_object_remove_weak_pointer (G_OBJECT (priv->saved_focus),
1849 (gpointer *)&(priv->saved_focus));
1851 priv->saved_focus = widget;
1853 if (priv->saved_focus)
1854 g_object_add_weak_pointer (G_OBJECT (priv->saved_focus),
1855 (gpointer *)&(priv->saved_focus));
1859 gtk_paned_set_first_paned (GtkPaned *paned, GtkPaned *first_paned)
1861 GtkPanedPrivate *priv = paned->priv;
1863 if (priv->first_paned)
1864 g_object_remove_weak_pointer (G_OBJECT (priv->first_paned),
1865 (gpointer *)&(priv->first_paned));
1867 priv->first_paned = first_paned;
1869 if (priv->first_paned)
1870 g_object_add_weak_pointer (G_OBJECT (priv->first_paned),
1871 (gpointer *)&(priv->first_paned));
1875 gtk_paned_set_last_child1_focus (GtkPaned *paned, GtkWidget *widget)
1877 GtkPanedPrivate *priv = paned->priv;
1879 if (priv->last_child1_focus)
1880 g_object_remove_weak_pointer (G_OBJECT (priv->last_child1_focus),
1881 (gpointer *)&(priv->last_child1_focus));
1883 priv->last_child1_focus = widget;
1885 if (priv->last_child1_focus)
1886 g_object_add_weak_pointer (G_OBJECT (priv->last_child1_focus),
1887 (gpointer *)&(priv->last_child1_focus));
1891 gtk_paned_set_last_child2_focus (GtkPaned *paned, GtkWidget *widget)
1893 GtkPanedPrivate *priv = paned->priv;
1895 if (priv->last_child2_focus)
1896 g_object_remove_weak_pointer (G_OBJECT (priv->last_child2_focus),
1897 (gpointer *)&(priv->last_child2_focus));
1899 priv->last_child2_focus = widget;
1901 if (priv->last_child2_focus)
1902 g_object_add_weak_pointer (G_OBJECT (priv->last_child2_focus),
1903 (gpointer *)&(priv->last_child2_focus));
1907 paned_get_focus_widget (GtkPaned *paned)
1909 GtkWidget *toplevel;
1911 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned));
1912 if (gtk_widget_is_toplevel (toplevel))
1913 return gtk_window_get_focus (GTK_WINDOW (toplevel));
1919 gtk_paned_set_focus_child (GtkContainer *container,
1920 GtkWidget *focus_child)
1923 GtkPanedPrivate *priv;
1924 GtkWidget *container_focus_child;
1926 g_return_if_fail (GTK_IS_PANED (container));
1928 paned = GTK_PANED (container);
1931 if (focus_child == NULL)
1933 GtkWidget *last_focus;
1936 last_focus = paned_get_focus_widget (paned);
1940 /* If there is one or more paned widgets between us and the
1941 * focus widget, we want the topmost of those as last_focus
1943 for (w = last_focus; w != GTK_WIDGET (paned); w = gtk_widget_get_parent (w))
1944 if (GTK_IS_PANED (w))
1947 container_focus_child = gtk_container_get_focus_child (container);
1948 if (container_focus_child == priv->child1)
1949 gtk_paned_set_last_child1_focus (paned, last_focus);
1950 else if (container_focus_child == priv->child2)
1951 gtk_paned_set_last_child2_focus (paned, last_focus);
1955 if (GTK_CONTAINER_CLASS (gtk_paned_parent_class)->set_focus_child)
1956 GTK_CONTAINER_CLASS (gtk_paned_parent_class)->set_focus_child (container, focus_child);
1960 gtk_paned_get_cycle_chain (GtkPaned *paned,
1961 GtkDirectionType direction,
1964 GtkPanedPrivate *priv = paned->priv;
1965 GtkContainer *container = GTK_CONTAINER (paned);
1966 GtkWidget *ancestor = NULL;
1967 GtkWidget *focus_child;
1969 GtkWidget *widget = GTK_WIDGET (paned);
1970 GList *temp_list = NULL;
1973 if (priv->in_recursion)
1976 g_assert (widgets != NULL);
1978 if (priv->last_child1_focus &&
1979 !gtk_widget_is_ancestor (priv->last_child1_focus, widget))
1981 gtk_paned_set_last_child1_focus (paned, NULL);
1984 if (priv->last_child2_focus &&
1985 !gtk_widget_is_ancestor (priv->last_child2_focus, widget))
1987 gtk_paned_set_last_child2_focus (paned, NULL);
1990 parent = gtk_widget_get_parent (widget);
1992 ancestor = gtk_widget_get_ancestor (parent, GTK_TYPE_PANED);
1994 /* The idea here is that temp_list is a list of widgets we want to cycle
1995 * to. The list is prioritized so that the first element is our first
1996 * choice, the next our second, and so on.
1998 * We can't just use g_list_reverse(), because we want to try
1999 * priv->last_child?_focus before priv->child?, both when we
2000 * are going forward and backward.
2002 focus_child = gtk_container_get_focus_child (container);
2003 if (direction == GTK_DIR_TAB_FORWARD)
2005 if (focus_child == priv->child1)
2007 temp_list = g_list_append (temp_list, priv->last_child2_focus);
2008 temp_list = g_list_append (temp_list, priv->child2);
2009 temp_list = g_list_append (temp_list, ancestor);
2011 else if (focus_child == priv->child2)
2013 temp_list = g_list_append (temp_list, ancestor);
2014 temp_list = g_list_append (temp_list, priv->last_child1_focus);
2015 temp_list = g_list_append (temp_list, priv->child1);
2019 temp_list = g_list_append (temp_list, priv->last_child1_focus);
2020 temp_list = g_list_append (temp_list, priv->child1);
2021 temp_list = g_list_append (temp_list, priv->last_child2_focus);
2022 temp_list = g_list_append (temp_list, priv->child2);
2023 temp_list = g_list_append (temp_list, ancestor);
2028 if (focus_child == priv->child1)
2030 temp_list = g_list_append (temp_list, ancestor);
2031 temp_list = g_list_append (temp_list, priv->last_child2_focus);
2032 temp_list = g_list_append (temp_list, priv->child2);
2034 else if (focus_child == priv->child2)
2036 temp_list = g_list_append (temp_list, priv->last_child1_focus);
2037 temp_list = g_list_append (temp_list, priv->child1);
2038 temp_list = g_list_append (temp_list, ancestor);
2042 temp_list = g_list_append (temp_list, priv->last_child2_focus);
2043 temp_list = g_list_append (temp_list, priv->child2);
2044 temp_list = g_list_append (temp_list, priv->last_child1_focus);
2045 temp_list = g_list_append (temp_list, priv->child1);
2046 temp_list = g_list_append (temp_list, ancestor);
2050 /* Walk the list and expand all the paned widgets. */
2051 for (list = temp_list; list != NULL; list = list->next)
2053 GtkWidget *widget = list->data;
2057 if (GTK_IS_PANED (widget))
2059 priv->in_recursion = TRUE;
2060 gtk_paned_get_cycle_chain (GTK_PANED (widget), direction, widgets);
2061 priv->in_recursion = FALSE;
2065 *widgets = g_list_append (*widgets, widget);
2070 g_list_free (temp_list);
2074 gtk_paned_cycle_child_focus (GtkPaned *paned,
2077 GList *cycle_chain = NULL;
2080 GtkDirectionType direction = reversed? GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD;
2082 /* ignore f6 if the handle is focused */
2083 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2086 /* we can't just let the event propagate up the hierarchy,
2087 * because the paned will want to cycle focus _unless_ an
2088 * ancestor paned handles the event
2090 gtk_paned_get_cycle_chain (paned, direction, &cycle_chain);
2092 for (list = cycle_chain; list != NULL; list = list->next)
2093 if (gtk_widget_child_focus (GTK_WIDGET (list->data), direction))
2096 g_list_free (cycle_chain);
2102 get_child_panes (GtkWidget *widget,
2105 if (!widget || !gtk_widget_get_realized (widget))
2108 if (GTK_IS_PANED (widget))
2110 GtkPaned *paned = GTK_PANED (widget);
2111 GtkPanedPrivate *priv = paned->priv;
2113 get_child_panes (priv->child1, panes);
2114 *panes = g_list_prepend (*panes, widget);
2115 get_child_panes (priv->child2, panes);
2117 else if (GTK_IS_CONTAINER (widget))
2119 gtk_container_forall (GTK_CONTAINER (widget),
2120 (GtkCallback)get_child_panes, panes);
2125 get_all_panes (GtkPaned *paned)
2127 GtkPaned *topmost = NULL;
2128 GList *result = NULL;
2131 for (w = GTK_WIDGET (paned); w != NULL; w = gtk_widget_get_parent (w))
2133 if (GTK_IS_PANED (w))
2134 topmost = GTK_PANED (w);
2139 get_child_panes (GTK_WIDGET (topmost), &result);
2141 return g_list_reverse (result);
2145 gtk_paned_find_neighbours (GtkPaned *paned,
2152 all_panes = get_all_panes (paned);
2153 g_assert (all_panes);
2155 this_link = g_list_find (all_panes, paned);
2157 g_assert (this_link);
2159 if (this_link->next)
2160 *next = this_link->next->data;
2162 *next = all_panes->data;
2164 if (this_link->prev)
2165 *prev = this_link->prev->data;
2167 *prev = g_list_last (all_panes)->data;
2169 g_list_free (all_panes);
2173 gtk_paned_move_handle (GtkPaned *paned,
2174 GtkScrollType scroll)
2176 GtkPanedPrivate *priv = paned->priv;
2178 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2185 SINGLE_STEP_SIZE = 1,
2189 new_position = old_position = gtk_paned_get_position (paned);
2194 case GTK_SCROLL_STEP_LEFT:
2195 case GTK_SCROLL_STEP_UP:
2196 case GTK_SCROLL_STEP_BACKWARD:
2197 increment = - SINGLE_STEP_SIZE;
2200 case GTK_SCROLL_STEP_RIGHT:
2201 case GTK_SCROLL_STEP_DOWN:
2202 case GTK_SCROLL_STEP_FORWARD:
2203 increment = SINGLE_STEP_SIZE;
2206 case GTK_SCROLL_PAGE_LEFT:
2207 case GTK_SCROLL_PAGE_UP:
2208 case GTK_SCROLL_PAGE_BACKWARD:
2209 increment = - PAGE_STEP_SIZE;
2212 case GTK_SCROLL_PAGE_RIGHT:
2213 case GTK_SCROLL_PAGE_DOWN:
2214 case GTK_SCROLL_PAGE_FORWARD:
2215 increment = PAGE_STEP_SIZE;
2218 case GTK_SCROLL_START:
2219 new_position = priv->min_position;
2222 case GTK_SCROLL_END:
2223 new_position = priv->max_position;
2233 increment = -increment;
2235 new_position = old_position + increment;
2238 new_position = CLAMP (new_position, priv->min_position, priv->max_position);
2240 if (old_position != new_position)
2241 gtk_paned_set_position (paned, new_position);
2250 gtk_paned_restore_focus (GtkPaned *paned)
2252 GtkPanedPrivate *priv = paned->priv;
2254 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2256 if (priv->saved_focus &&
2257 gtk_widget_get_sensitive (priv->saved_focus))
2259 gtk_widget_grab_focus (priv->saved_focus);
2263 /* the saved focus is somehow not available for focusing,
2265 * 1) tabbing into the paned widget
2266 * if that didn't work,
2267 * 2) unset focus for the window if there is one
2270 if (!gtk_widget_child_focus (GTK_WIDGET (paned), GTK_DIR_TAB_FORWARD))
2272 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned));
2274 if (GTK_IS_WINDOW (toplevel))
2275 gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
2279 gtk_paned_set_saved_focus (paned, NULL);
2280 gtk_paned_set_first_paned (paned, NULL);
2285 gtk_paned_accept_position (GtkPaned *paned)
2287 GtkPanedPrivate *priv = paned->priv;
2289 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2291 priv->original_position = -1;
2292 gtk_paned_restore_focus (paned);
2302 gtk_paned_cancel_position (GtkPaned *paned)
2304 GtkPanedPrivate *priv = paned->priv;
2306 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2308 if (priv->original_position != -1)
2310 gtk_paned_set_position (paned, priv->original_position);
2311 priv->original_position = -1;
2314 gtk_paned_restore_focus (paned);
2322 gtk_paned_cycle_handle_focus (GtkPaned *paned,
2325 GtkPanedPrivate *priv = paned->priv;
2326 GtkPaned *next, *prev;
2328 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2330 GtkPaned *focus = NULL;
2332 if (!priv->first_paned)
2334 /* The first_pane has disappeared. As an ad-hoc solution,
2335 * we make the currently focused paned the first_paned. To the
2336 * user this will seem like the paned cycling has been reset.
2339 gtk_paned_set_first_paned (paned, paned);
2342 gtk_paned_find_neighbours (paned, &next, &prev);
2344 if (reversed && prev &&
2345 prev != paned && paned != priv->first_paned)
2349 else if (!reversed && next &&
2350 next != paned && next != priv->first_paned)
2356 gtk_paned_accept_position (paned);
2362 gtk_paned_set_saved_focus (focus, priv->saved_focus);
2363 gtk_paned_set_first_paned (focus, priv->first_paned);
2365 gtk_paned_set_saved_focus (paned, NULL);
2366 gtk_paned_set_first_paned (paned, NULL);
2368 gtk_widget_grab_focus (GTK_WIDGET (focus));
2370 if (!gtk_widget_is_focus (GTK_WIDGET (paned)))
2372 priv->original_position = -1;
2373 focus->priv->original_position = gtk_paned_get_position (focus);
2378 GtkContainer *container = GTK_CONTAINER (paned);
2381 GtkPaned *prev, *next;
2382 GtkWidget *toplevel;
2383 GtkWidget *focus_child;
2385 gtk_paned_find_neighbours (paned, &next, &prev);
2386 focus_child = gtk_container_get_focus_child (container);
2388 if (focus_child == priv->child1)
2401 else if (focus_child == priv->child2)
2416 /* Focus is not inside this paned, and we don't have focus.
2417 * Presumably this happened because the application wants us
2418 * to start keyboard navigating.
2428 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned));
2430 if (GTK_IS_WINDOW (toplevel))
2431 gtk_paned_set_saved_focus (focus, gtk_window_get_focus (GTK_WINDOW (toplevel)));
2432 gtk_paned_set_first_paned (focus, first);
2433 focus->priv->original_position = gtk_paned_get_position (focus);
2435 gtk_widget_grab_focus (GTK_WIDGET (focus));
2442 gtk_paned_toggle_handle_focus (GtkPaned *paned)
2444 /* This function/signal has the wrong name. It is called when you
2445 * press Tab or Shift-Tab and what we do is act as if
2446 * the user pressed Return and then Tab or Shift-Tab
2448 if (gtk_widget_is_focus (GTK_WIDGET (paned)))
2449 gtk_paned_accept_position (paned);
2455 * gtk_paned_get_handle_window:
2456 * @paned: a #GtkPaned
2458 * Returns the #GdkWindow of the handle. This function is
2459 * useful when handling button or motion events because it
2460 * enables the callback to distinguish between the window
2461 * of the paned, a child and the handle.
2463 * Return value: (transfer none): the paned's handle window.
2468 gtk_paned_get_handle_window (GtkPaned *paned)
2470 g_return_val_if_fail (GTK_IS_PANED (paned), NULL);
2472 return paned->priv->handle;