* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include "config.h"
+
#include "gtkpaned.h"
+#include "gtkbindings.h"
+#include "gtkmain.h"
+#include "gtkmarshalers.h"
+#include "gtkorientable.h"
+#include "gtkwindow.h"
+#include "gtktypebuiltins.h"
+#include "gtkorientableprivate.h"
+#include "gtkprivate.h"
+#include "gtkintl.h"
+#include "a11y/gtkpanedaccessible.h"
+
+/**
+ * SECTION:gtkpaned
+ * @Short_description: A widget with two adjustable panes
+ * @Title: GtkPaned
+ *
+ * #GtkPaned has two panes, arranged either
+ * horizontally or vertically. The division between
+ * the two panes is adjustable by the user by dragging
+ * a handle.
+ *
+ * Child widgets are
+ * added to the panes of the widget with gtk_paned_pack1() and
+ * gtk_paned_pack2(). The division between the two children is set by default
+ * from the size requests of the children, but it can be adjusted by the
+ * user.
+ *
+ * A paned widget draws a separator between the two child widgets and a
+ * small handle that the user can drag to adjust the division. It does not
+ * draw any relief around the children or around the separator. (The space
+ * in which the separator is called the gutter.) Often, it is useful to put
+ * each child inside a #GtkFrame with the shadow type set to %GTK_SHADOW_IN
+ * so that the gutter appears as a ridge. No separator is drawn if one of
+ * the children is missing.
+ *
+ * Each child has two options that can be set, @resize and @shrink. If
+ * @resize is true, then when the #GtkPaned is resized, that child will
+ * expand or shrink along with the paned widget. If @shrink is true, then
+ * that child can be made smaller than its requisition by the user.
+ * Setting @shrink to %FALSE allows the application to set a minimum size.
+ * If @resize is false for both children, then this is treated as if
+ * @resize is true for both children.
+ *
+ * The application can set the position of the slider as if it were set
+ * by the user, by calling gtk_paned_set_position().
+ *
+ * <example>
+ * <title>Creating a paned widget with minimum sizes.</title>
+ * <programlisting>
+ * GtkWidget *hpaned = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
+ * GtkWidget *frame1 = gtk_frame_new (NULL);
+ * GtkWidget *frame2 = gtk_frame_new (NULL);
+ * gtk_frame_set_shadow_type (GTK_FRAME (frame1), GTK_SHADOW_IN);
+ * gtk_frame_set_shadow_type (GTK_FRAME (frame2), GTK_SHADOW_IN);
+ *
+ * gtk_widget_set_size_request (hpaned, 200, -1);
+ *
+ * gtk_paned_pack1 (GTK_PANED (hpaned), frame1, TRUE, FALSE);
+ * gtk_widget_set_size_request (frame1, 50, -1);
+ *
+ * gtk_paned_pack2 (GTK_PANED (hpaned), frame2, FALSE, FALSE);
+ * gtk_widget_set_size_request (frame2, 50, -1);
+ * </programlisting>
+ * </example>
+ */
+
+enum {
+ CHILD1,
+ CHILD2
+};
-static void gtk_paned_class_init (GtkPanedClass *klass);
-static void gtk_paned_init (GtkPaned *paned);
-static void gtk_paned_realize (GtkWidget *widget);
-static void gtk_paned_map (GtkWidget *widget);
-static void gtk_paned_unmap (GtkWidget *widget);
-static void gtk_paned_unrealize (GtkWidget *widget);
-static gint gtk_paned_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static void gtk_paned_add (GtkContainer *container,
- GtkWidget *widget);
-static void gtk_paned_remove (GtkContainer *container,
- GtkWidget *widget);
-static void gtk_paned_forall (GtkContainer *container,
- gboolean include_internals,
- GtkCallback callback,
- gpointer callback_data);
-static GtkType gtk_paned_child_type (GtkContainer *container);
+struct _GtkPanedPrivate
+{
+ GtkPaned *first_paned;
+ GtkWidget *child1;
+ GtkWidget *child2;
+ GdkWindow *child1_window;
+ GdkWindow *child2_window;
+ GtkWidget *last_child1_focus;
+ GtkWidget *last_child2_focus;
+ GtkWidget *saved_focus;
+ GtkOrientation orientation;
+
+ GdkCursorType cursor_type;
+ GdkDevice *grab_device;
+ GdkRectangle handle_pos;
+ GdkWindow *handle;
+
+ gint child1_size;
+ gint drag_pos;
+ gint last_allocation;
+ gint max_position;
+ gint min_position;
+ gint original_position;
+
+ guint32 grab_time;
+
+ guint handle_prelit : 1;
+ guint in_drag : 1;
+ guint in_recursion : 1;
+ guint child1_resize : 1;
+ guint child1_shrink : 1;
+ guint child2_resize : 1;
+ guint child2_shrink : 1;
+ guint position_set : 1;
+};
+
+enum {
+ PROP_0,
+ PROP_ORIENTATION,
+ PROP_POSITION,
+ PROP_POSITION_SET,
+ PROP_MIN_POSITION,
+ PROP_MAX_POSITION
+};
+
+enum {
+ CHILD_PROP_0,
+ CHILD_PROP_RESIZE,
+ CHILD_PROP_SHRINK
+};
+
+enum {
+ CYCLE_CHILD_FOCUS,
+ TOGGLE_HANDLE_FOCUS,
+ MOVE_HANDLE,
+ CYCLE_HANDLE_FOCUS,
+ ACCEPT_POSITION,
+ CANCEL_POSITION,
+ LAST_SIGNAL
+};
+static void gtk_paned_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_paned_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_paned_set_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_paned_get_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_paned_finalize (GObject *object);
-static GtkContainerClass *parent_class = NULL;
+static void gtk_paned_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_paned_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_paned_get_preferred_width_for_height
+ (GtkWidget *widget,
+ gint height,
+ gint *minimum,
+ gint *natural);
+static void gtk_paned_get_preferred_height_for_width
+ (GtkWidget *widget,
+ gint width,
+ gint *minimum,
+ gint *natural);
+static void gtk_paned_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_paned_realize (GtkWidget *widget);
+static void gtk_paned_unrealize (GtkWidget *widget);
+static void gtk_paned_map (GtkWidget *widget);
+static void gtk_paned_unmap (GtkWidget *widget);
+static void gtk_paned_state_flags_changed (GtkWidget *widget,
+ GtkStateFlags previous_state);
+static gboolean gtk_paned_draw (GtkWidget *widget,
+ cairo_t *cr);
+static gboolean gtk_paned_enter (GtkWidget *widget,
+ GdkEventCrossing *event);
+static gboolean gtk_paned_leave (GtkWidget *widget,
+ GdkEventCrossing *event);
+static gboolean gtk_paned_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_paned_button_release (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_paned_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+static gboolean gtk_paned_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+static gboolean gtk_paned_grab_broken (GtkWidget *widget,
+ GdkEventGrabBroken *event);
+static void gtk_paned_add (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_paned_remove (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_paned_forall (GtkContainer *container,
+ gboolean include_internals,
+ GtkCallback callback,
+ gpointer callback_data);
+static void gtk_paned_calc_position (GtkPaned *paned,
+ gint allocation,
+ gint child1_req,
+ gint child2_req);
+static void gtk_paned_set_focus_child (GtkContainer *container,
+ GtkWidget *child);
+static void gtk_paned_set_saved_focus (GtkPaned *paned,
+ GtkWidget *widget);
+static void gtk_paned_set_first_paned (GtkPaned *paned,
+ GtkPaned *first_paned);
+static void gtk_paned_set_last_child1_focus (GtkPaned *paned,
+ GtkWidget *widget);
+static void gtk_paned_set_last_child2_focus (GtkPaned *paned,
+ GtkWidget *widget);
+static gboolean gtk_paned_cycle_child_focus (GtkPaned *paned,
+ gboolean reverse);
+static gboolean gtk_paned_cycle_handle_focus (GtkPaned *paned,
+ gboolean reverse);
+static gboolean gtk_paned_move_handle (GtkPaned *paned,
+ GtkScrollType scroll);
+static gboolean gtk_paned_accept_position (GtkPaned *paned);
+static gboolean gtk_paned_cancel_position (GtkPaned *paned);
+static gboolean gtk_paned_toggle_handle_focus (GtkPaned *paned);
-GtkType
-gtk_paned_get_type (void)
+static GType gtk_paned_child_type (GtkContainer *container);
+static void gtk_paned_grab_notify (GtkWidget *widget,
+ gboolean was_grabbed);
+
+
+G_DEFINE_TYPE_WITH_CODE (GtkPaned, gtk_paned, GTK_TYPE_CONTAINER,
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
+ NULL))
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+
+static void
+add_tab_bindings (GtkBindingSet *binding_set,
+ GdkModifierType modifiers)
{
- static GtkType paned_type = 0;
-
- if (!paned_type)
- {
- GtkTypeInfo paned_info =
- {
- "GtkPaned",
- sizeof (GtkPaned),
- sizeof (GtkPanedClass),
- (GtkClassInitFunc) gtk_paned_class_init,
- (GtkObjectInitFunc) gtk_paned_init,
- /* reserved_1 */ NULL,
- /* reserved_2 */ NULL,
- (GtkClassInitFunc) NULL,
- };
-
- paned_type = gtk_type_unique (GTK_TYPE_CONTAINER, &paned_info);
- }
-
- return paned_type;
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, modifiers,
+ "toggle-handle-focus", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, modifiers,
+ "toggle-handle-focus", 0);
+}
+
+static void
+add_move_binding (GtkBindingSet *binding_set,
+ guint keyval,
+ GdkModifierType mask,
+ GtkScrollType scroll)
+{
+ gtk_binding_entry_add_signal (binding_set, keyval, mask,
+ "move-handle", 1,
+ GTK_TYPE_SCROLL_TYPE, scroll);
}
static void
gtk_paned_class_init (GtkPanedClass *class)
{
- GtkObjectClass *object_class;
+ GObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
-
- object_class = (GtkObjectClass*) class;
- widget_class = (GtkWidgetClass*) class;
- container_class = (GtkContainerClass*) class;
-
- parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
-
+ GtkPanedClass *paned_class;
+ GtkBindingSet *binding_set;
+
+ object_class = (GObjectClass *) class;
+ widget_class = (GtkWidgetClass *) class;
+ container_class = (GtkContainerClass *) class;
+ paned_class = (GtkPanedClass *) class;
+
+ object_class->set_property = gtk_paned_set_property;
+ object_class->get_property = gtk_paned_get_property;
+ object_class->finalize = gtk_paned_finalize;
+
+ widget_class->get_preferred_width = gtk_paned_get_preferred_width;
+ widget_class->get_preferred_height = gtk_paned_get_preferred_height;
+ widget_class->get_preferred_width_for_height = gtk_paned_get_preferred_width_for_height;
+ widget_class->get_preferred_height_for_width = gtk_paned_get_preferred_height_for_width;
+ widget_class->size_allocate = gtk_paned_size_allocate;
widget_class->realize = gtk_paned_realize;
+ widget_class->unrealize = gtk_paned_unrealize;
widget_class->map = gtk_paned_map;
widget_class->unmap = gtk_paned_unmap;
- widget_class->unrealize = gtk_paned_unrealize;
- widget_class->expose_event = gtk_paned_expose;
-
+ widget_class->draw = gtk_paned_draw;
+ widget_class->focus = gtk_paned_focus;
+ widget_class->enter_notify_event = gtk_paned_enter;
+ widget_class->leave_notify_event = gtk_paned_leave;
+ widget_class->button_press_event = gtk_paned_button_press;
+ widget_class->button_release_event = gtk_paned_button_release;
+ widget_class->motion_notify_event = gtk_paned_motion;
+ widget_class->grab_broken_event = gtk_paned_grab_broken;
+ widget_class->grab_notify = gtk_paned_grab_notify;
+ widget_class->state_flags_changed = gtk_paned_state_flags_changed;
+
container_class->add = gtk_paned_add;
container_class->remove = gtk_paned_remove;
container_class->forall = gtk_paned_forall;
container_class->child_type = gtk_paned_child_type;
+ container_class->set_focus_child = gtk_paned_set_focus_child;
+ container_class->set_child_property = gtk_paned_set_child_property;
+ container_class->get_child_property = gtk_paned_get_child_property;
+ gtk_container_class_handle_border_width (container_class);
+
+ paned_class->cycle_child_focus = gtk_paned_cycle_child_focus;
+ paned_class->toggle_handle_focus = gtk_paned_toggle_handle_focus;
+ paned_class->move_handle = gtk_paned_move_handle;
+ paned_class->cycle_handle_focus = gtk_paned_cycle_handle_focus;
+ paned_class->accept_position = gtk_paned_accept_position;
+ paned_class->cancel_position = gtk_paned_cancel_position;
+
+ g_object_class_override_property (object_class,
+ PROP_ORIENTATION,
+ "orientation");
+
+ g_object_class_install_property (object_class,
+ PROP_POSITION,
+ g_param_spec_int ("position",
+ P_("Position"),
+ P_("Position of paned separator in pixels (0 means all the way to the left/top)"),
+ 0,
+ G_MAXINT,
+ 0,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_POSITION_SET,
+ g_param_spec_boolean ("position-set",
+ P_("Position Set"),
+ P_("TRUE if the Position property should be used"),
+ FALSE,
+ GTK_PARAM_READWRITE));
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("handle-size",
+ P_("Handle Size"),
+ P_("Width of handle"),
+ 0,
+ G_MAXINT,
+ 5,
+ GTK_PARAM_READABLE));
+ /**
+ * GtkPaned:min-position:
+ *
+ * The smallest possible value for the position property. This property is derived from the
+ * size and shrinkability of the widget's children.
+ *
+ * Since: 2.4
+ */
+ g_object_class_install_property (object_class,
+ PROP_MIN_POSITION,
+ g_param_spec_int ("min-position",
+ P_("Minimal Position"),
+ P_("Smallest possible value for the \"position\" property"),
+ 0,
+ G_MAXINT,
+ 0,
+ GTK_PARAM_READABLE));
+
+ /**
+ * GtkPaned:max-position:
+ *
+ * The largest possible value for the position property. This property is derived from the
+ * size and shrinkability of the widget's children.
+ *
+ * Since: 2.4
+ */
+ g_object_class_install_property (object_class,
+ PROP_MAX_POSITION,
+ g_param_spec_int ("max-position",
+ P_("Maximal Position"),
+ P_("Largest possible value for the \"position\" property"),
+ 0,
+ G_MAXINT,
+ G_MAXINT,
+ GTK_PARAM_READABLE));
+
+ /**
+ * GtkPaned:resize:
+ *
+ * The "resize" child property determines whether the child expands and
+ * shrinks along with the paned widget.
+ *
+ * Since: 2.4
+ */
+ gtk_container_class_install_child_property (container_class,
+ CHILD_PROP_RESIZE,
+ g_param_spec_boolean ("resize",
+ P_("Resize"),
+ P_("If TRUE, the child expands and shrinks along with the paned widget"),
+ TRUE,
+ GTK_PARAM_READWRITE));
+
+ /**
+ * GtkPaned:shrink:
+ *
+ * The "shrink" child property determines whether the child can be made
+ * smaller than its requisition.
+ *
+ * Since: 2.4
+ */
+ gtk_container_class_install_child_property (container_class,
+ CHILD_PROP_SHRINK,
+ g_param_spec_boolean ("shrink",
+ P_("Shrink"),
+ P_("If TRUE, the child can be made smaller than its requisition"),
+ TRUE,
+ GTK_PARAM_READWRITE));
+
+ /**
+ * GtkPaned::cycle-child-focus:
+ * @widget: the object that received the signal
+ * @reversed: whether cycling backward or forward
+ *
+ * The ::cycle-child-focus signal is a
+ * <link linkend="keybinding-signals">keybinding signal</link>
+ * which gets emitted to cycle the focus between the children of the paned.
+ *
+ * The default binding is f6.
+ *
+ * Since: 2.0
+ */
+ signals [CYCLE_CHILD_FOCUS] =
+ g_signal_new (I_("cycle-child-focus"),
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkPanedClass, cycle_child_focus),
+ NULL, NULL,
+ _gtk_marshal_BOOLEAN__BOOLEAN,
+ G_TYPE_BOOLEAN, 1,
+ G_TYPE_BOOLEAN);
+
+ /**
+ * GtkPaned::toggle-handle-focus:
+ * @widget: the object that received the signal
+ *
+ * The ::toggle-handle-focus is a
+ * <link linkend="keybinding-signals">keybinding signal</link>
+ * which gets emitted to accept the current position of the handle and then
+ * move focus to the next widget in the focus chain.
+ *
+ * The default binding is Tab.
+ *
+ * Since: 2.0
+ */
+ signals [TOGGLE_HANDLE_FOCUS] =
+ g_signal_new (I_("toggle-handle-focus"),
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkPanedClass, toggle_handle_focus),
+ NULL, NULL,
+ _gtk_marshal_BOOLEAN__VOID,
+ G_TYPE_BOOLEAN, 0);
+
+ /**
+ * GtkPaned::move-handle:
+ * @widget: the object that received the signal
+ * @scroll_type: a #GtkScrollType
+ *
+ * The ::move-handle signal is a
+ * <link linkend="keybinding-signals">keybinding signal</link>
+ * which gets emitted to move the handle when the user is using key bindings
+ * to move it.
+ *
+ * Since: 2.0
+ */
+ signals[MOVE_HANDLE] =
+ g_signal_new (I_("move-handle"),
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkPanedClass, move_handle),
+ NULL, NULL,
+ _gtk_marshal_BOOLEAN__ENUM,
+ G_TYPE_BOOLEAN, 1,
+ GTK_TYPE_SCROLL_TYPE);
+
+ /**
+ * GtkPaned::cycle-handle-focus:
+ * @widget: the object that received the signal
+ * @reversed: whether cycling backward or forward
+ *
+ * The ::cycle-handle-focus signal is a
+ * <link linkend="keybinding-signals">keybinding signal</link>
+ * which gets emitted to cycle whether the paned should grab focus to allow
+ * the user to change position of the handle by using key bindings.
+ *
+ * The default binding for this signal is f8.
+ *
+ * Since: 2.0
+ */
+ signals [CYCLE_HANDLE_FOCUS] =
+ g_signal_new (I_("cycle-handle-focus"),
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkPanedClass, cycle_handle_focus),
+ NULL, NULL,
+ _gtk_marshal_BOOLEAN__BOOLEAN,
+ G_TYPE_BOOLEAN, 1,
+ G_TYPE_BOOLEAN);
+
+ /**
+ * GtkPaned::accept-position:
+ * @widget: the object that received the signal
+ *
+ * The ::accept-position signal is a
+ * <link linkend="keybinding-signals">keybinding signal</link>
+ * which gets emitted to accept the current position of the handle when
+ * moving it using key bindings.
+ *
+ * The default binding for this signal is Return or Space.
+ *
+ * Since: 2.0
+ */
+ signals [ACCEPT_POSITION] =
+ g_signal_new (I_("accept-position"),
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkPanedClass, accept_position),
+ NULL, NULL,
+ _gtk_marshal_BOOLEAN__VOID,
+ G_TYPE_BOOLEAN, 0);
+
+ /**
+ * GtkPaned::cancel-position:
+ * @widget: the object that received the signal
+ *
+ * The ::cancel-position signal is a
+ * <link linkend="keybinding-signals">keybinding signal</link>
+ * which gets emitted to cancel moving the position of the handle using key
+ * bindings. The position of the handle will be reset to the value prior to
+ * moving it.
+ *
+ * The default binding for this signal is Escape.
+ *
+ * Since: 2.0
+ */
+ signals [CANCEL_POSITION] =
+ g_signal_new (I_("cancel-position"),
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GtkPanedClass, cancel_position),
+ NULL, NULL,
+ _gtk_marshal_BOOLEAN__VOID,
+ G_TYPE_BOOLEAN, 0);
+
+ binding_set = gtk_binding_set_by_class (class);
+
+ /* F6 and friends */
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_F6, 0,
+ "cycle-child-focus", 1,
+ G_TYPE_BOOLEAN, FALSE);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_F6, GDK_SHIFT_MASK,
+ "cycle-child-focus", 1,
+ G_TYPE_BOOLEAN, TRUE);
+
+ /* F8 and friends */
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_F8, 0,
+ "cycle-handle-focus", 1,
+ G_TYPE_BOOLEAN, FALSE);
+
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_F8, GDK_SHIFT_MASK,
+ "cycle-handle-focus", 1,
+ G_TYPE_BOOLEAN, TRUE);
+
+ add_tab_bindings (binding_set, 0);
+ add_tab_bindings (binding_set, GDK_CONTROL_MASK);
+ add_tab_bindings (binding_set, GDK_SHIFT_MASK);
+ add_tab_bindings (binding_set, GDK_CONTROL_MASK | GDK_SHIFT_MASK);
+
+ /* accept and cancel positions */
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_Escape, 0,
+ "cancel-position", 0);
+
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_Return, 0,
+ "accept-position", 0);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_ISO_Enter, 0,
+ "accept-position", 0);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_KP_Enter, 0,
+ "accept-position", 0);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_space, 0,
+ "accept-position", 0);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_KP_Space, 0,
+ "accept-position", 0);
+
+ /* move handle */
+ add_move_binding (binding_set, GDK_KEY_Left, 0, GTK_SCROLL_STEP_LEFT);
+ add_move_binding (binding_set, GDK_KEY_KP_Left, 0, GTK_SCROLL_STEP_LEFT);
+ add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_LEFT);
+ add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_LEFT);
+
+ add_move_binding (binding_set, GDK_KEY_Right, 0, GTK_SCROLL_STEP_RIGHT);
+ add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_RIGHT);
+ add_move_binding (binding_set, GDK_KEY_KP_Right, 0, GTK_SCROLL_STEP_RIGHT);
+ add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_RIGHT);
+
+ add_move_binding (binding_set, GDK_KEY_Up, 0, GTK_SCROLL_STEP_UP);
+ add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_UP);
+ add_move_binding (binding_set, GDK_KEY_KP_Up, 0, GTK_SCROLL_STEP_UP);
+ add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_UP);
+ add_move_binding (binding_set, GDK_KEY_Page_Up, 0, GTK_SCROLL_PAGE_UP);
+ add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, GTK_SCROLL_PAGE_UP);
+
+ add_move_binding (binding_set, GDK_KEY_Down, 0, GTK_SCROLL_STEP_DOWN);
+ add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_DOWN);
+ add_move_binding (binding_set, GDK_KEY_KP_Down, 0, GTK_SCROLL_STEP_DOWN);
+ add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_DOWN);
+ add_move_binding (binding_set, GDK_KEY_Page_Down, 0, GTK_SCROLL_PAGE_RIGHT);
+ add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, GTK_SCROLL_PAGE_RIGHT);
+
+ add_move_binding (binding_set, GDK_KEY_Home, 0, GTK_SCROLL_START);
+ add_move_binding (binding_set, GDK_KEY_KP_Home, 0, GTK_SCROLL_START);
+ add_move_binding (binding_set, GDK_KEY_End, 0, GTK_SCROLL_END);
+ add_move_binding (binding_set, GDK_KEY_KP_End, 0, GTK_SCROLL_END);
+
+ g_type_class_add_private (object_class, sizeof (GtkPanedPrivate));
+ gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_PANED_ACCESSIBLE);
}
-static GtkType
+static GType
gtk_paned_child_type (GtkContainer *container)
{
- if (!GTK_PANED (container)->child1 || !GTK_PANED (container)->child2)
+ GtkPaned *paned = GTK_PANED (container);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (!priv->child1 || !priv->child2)
return GTK_TYPE_WIDGET;
else
- return GTK_TYPE_NONE;
+ return G_TYPE_NONE;
}
static void
gtk_paned_init (GtkPaned *paned)
{
- GTK_WIDGET_UNSET_FLAGS (paned, GTK_NO_WINDOW);
-
- paned->child1 = NULL;
- paned->child2 = NULL;
- paned->handle = NULL;
- paned->xor_gc = NULL;
-
- paned->handle_size = 10;
- paned->gutter_size = 6;
- paned->position_set = FALSE;
- paned->in_drag = FALSE;
-
- paned->handle_xpos = -1;
- paned->handle_ypos = -1;
-}
+ GtkPanedPrivate *priv;
+ gtk_widget_set_has_window (GTK_WIDGET (paned), FALSE);
+ gtk_widget_set_can_focus (GTK_WIDGET (paned), TRUE);
-static void
-gtk_paned_realize (GtkWidget *widget)
-{
- GtkPaned *paned;
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_PANED (widget));
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
- paned = GTK_PANED (widget);
-
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
- attributes.window_type = GDK_WINDOW_CHILD;
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
- attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
-
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
- &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, paned);
-
- attributes.x = paned->handle_xpos;
- attributes.y = paned->handle_ypos;
- attributes.width = paned->handle_size;
- attributes.height = paned->handle_size;
- attributes.cursor = paned->cursor = gdk_cursor_new (GDK_CROSS);
- attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_POINTER_MOTION_MASK |
- GDK_POINTER_MOTION_HINT_MASK);
- attributes_mask |= GDK_WA_CURSOR;
-
- paned->handle = gdk_window_new (widget->window,
- &attributes, attributes_mask);
- gdk_window_set_user_data (paned->handle, paned);
-
- widget->style = gtk_style_attach (widget->style, widget->window);
-
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
- gtk_style_set_background (widget->style, paned->handle, GTK_STATE_NORMAL);
+ /* We only need to redraw when the handle position moves, which is
+ * independent of the overall allocation of the GtkPaned
+ */
+ gtk_widget_set_redraw_on_allocate (GTK_WIDGET (paned), FALSE);
- gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
-
- gdk_window_show (paned->handle);
-}
+ paned->priv = G_TYPE_INSTANCE_GET_PRIVATE (paned, GTK_TYPE_PANED, GtkPanedPrivate);
+ priv = paned->priv;
-static void
-gtk_paned_map (GtkWidget *widget)
-{
- GtkPaned *paned;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_PANED (widget));
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
- paned = GTK_PANED (widget);
-
- gdk_window_show (widget->window);
-
- if (paned->child1 &&
- GTK_WIDGET_VISIBLE (paned->child1) &&
- !GTK_WIDGET_MAPPED (paned->child1))
- gtk_widget_map (paned->child1);
- if (paned->child2 &&
- GTK_WIDGET_VISIBLE (paned->child2) &&
- !GTK_WIDGET_MAPPED (paned->child2))
- gtk_widget_map (paned->child2);
+ priv->orientation = GTK_ORIENTATION_HORIZONTAL;
+ priv->cursor_type = GDK_SB_H_DOUBLE_ARROW;
+
+ priv->child1 = NULL;
+ priv->child2 = NULL;
+ priv->handle = NULL;
+
+ priv->handle_pos.width = 5;
+ priv->handle_pos.height = 5;
+ priv->position_set = FALSE;
+ priv->last_allocation = -1;
+ priv->in_drag = FALSE;
+
+ priv->last_child1_focus = NULL;
+ priv->last_child2_focus = NULL;
+ priv->in_recursion = FALSE;
+ priv->handle_prelit = FALSE;
+ priv->original_position = -1;
+
+ priv->handle_pos.x = -1;
+ priv->handle_pos.y = -1;
+
+ priv->drag_pos = -1;
}
static void
-gtk_paned_unmap (GtkWidget *widget)
+gtk_paned_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_PANED (widget));
-
- GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
-
- gdk_window_hide (widget->window);
+ GtkPaned *paned = GTK_PANED (object);
+ GtkPanedPrivate *priv = paned->priv;
+
+ switch (prop_id)
+ {
+ case PROP_ORIENTATION:
+ priv->orientation = g_value_get_enum (value);
+ _gtk_orientable_set_style_classes (GTK_ORIENTABLE (paned));
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ priv->cursor_type = GDK_SB_H_DOUBLE_ARROW;
+ else
+ priv->cursor_type = GDK_SB_V_DOUBLE_ARROW;
+
+ /* state_flags_changed updates the cursor */
+ gtk_paned_state_flags_changed (GTK_WIDGET (paned), 0);
+ gtk_widget_queue_resize (GTK_WIDGET (paned));
+ break;
+ case PROP_POSITION:
+ gtk_paned_set_position (paned, g_value_get_int (value));
+ break;
+ case PROP_POSITION_SET:
+ priv->position_set = g_value_get_boolean (value);
+ gtk_widget_queue_resize_no_redraw (GTK_WIDGET (paned));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
static void
-gtk_paned_unrealize (GtkWidget *widget)
+gtk_paned_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
{
- GtkPaned *paned;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_PANED (widget));
-
- paned = GTK_PANED (widget);
-
- if (paned->xor_gc)
- {
- gdk_gc_destroy (paned->xor_gc);
- paned->xor_gc = NULL;
- }
-
- if (paned->handle)
+ GtkPaned *paned = GTK_PANED (object);
+ GtkPanedPrivate *priv = paned->priv;
+
+ switch (prop_id)
{
- gdk_window_set_user_data (paned->handle, NULL);
- gdk_window_destroy (paned->handle);
- paned->handle = NULL;
- gdk_cursor_destroy (paned->cursor);
- paned->cursor = NULL;
+ case PROP_ORIENTATION:
+ g_value_set_enum (value, priv->orientation);
+ break;
+ case PROP_POSITION:
+ g_value_set_int (value, priv->child1_size);
+ break;
+ case PROP_POSITION_SET:
+ g_value_set_boolean (value, priv->position_set);
+ break;
+ case PROP_MIN_POSITION:
+ g_value_set_int (value, priv->min_position);
+ break;
+ case PROP_MAX_POSITION:
+ g_value_set_int (value, priv->max_position);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
}
-
- if (GTK_WIDGET_CLASS (parent_class)->unrealize)
- (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
-static gint
-gtk_paned_expose (GtkWidget *widget,
- GdkEventExpose *event)
+static void
+gtk_paned_set_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
{
- GtkPaned *paned;
- GdkEventExpose child_event;
-
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_PANED (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- if (GTK_WIDGET_DRAWABLE (widget))
+ GtkPaned *paned = GTK_PANED (container);
+ GtkPanedPrivate *priv = paned->priv;
+ gboolean old_value, new_value;
+
+ g_assert (child == priv->child1 || child == priv->child2);
+
+ new_value = g_value_get_boolean (value);
+ switch (property_id)
{
- paned = GTK_PANED (widget);
-
- /* An expose event for the handle */
- if (event->window == paned->handle)
+ case CHILD_PROP_RESIZE:
+ if (child == priv->child1)
{
- gtk_paint_box (widget->style, paned->handle,
- GTK_WIDGET_STATE(widget),
- GTK_SHADOW_OUT,
- &event->area, widget, "paned",
- 0, 0,
- paned->handle_size, paned->handle_size);
+ old_value = priv->child1_resize;
+ priv->child1_resize = new_value;
}
else
{
- child_event = *event;
- if (paned->child1 &&
- GTK_WIDGET_NO_WINDOW (paned->child1) &&
- gtk_widget_intersect (paned->child1, &event->area, &child_event.area))
- gtk_widget_event (paned->child1, (GdkEvent*) &child_event);
-
- if (paned->child2 &&
- GTK_WIDGET_NO_WINDOW (paned->child2) &&
- gtk_widget_intersect (paned->child2, &event->area, &child_event.area))
- gtk_widget_event (paned->child2, (GdkEvent*) &child_event);
-
- /* redraw the groove if necessary */
- if (gdk_rectangle_intersect (&paned->groove_rectangle,
- &event->area,
- &child_event.area))
- gtk_widget_draw (widget, &child_event.area);
+ old_value = priv->child2_resize;
+ priv->child2_resize = new_value;
+ }
+ break;
+ case CHILD_PROP_SHRINK:
+ if (child == priv->child1)
+ {
+ old_value = priv->child1_shrink;
+ priv->child1_shrink = new_value;
+ }
+ else
+ {
+ old_value = priv->child2_shrink;
+ priv->child2_shrink = new_value;
}
+ break;
+ default:
+ GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+ old_value = -1; /* quiet gcc */
+ break;
}
- return FALSE;
+ if (old_value != new_value)
+ gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container));
}
-void
-gtk_paned_add1 (GtkPaned *paned,
- GtkWidget *widget)
+static void
+gtk_paned_get_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
{
- g_return_if_fail (widget != NULL);
+ GtkPaned *paned = GTK_PANED (container);
+ GtkPanedPrivate *priv = paned->priv;
+
+ g_assert (child == priv->child1 || child == priv->child2);
- if (!paned->child1)
+ switch (property_id)
{
- gtk_widget_set_parent (widget, GTK_WIDGET (paned));
-
- if (GTK_WIDGET_VISIBLE (widget->parent))
- {
- if (GTK_WIDGET_REALIZED (widget->parent) &&
- !GTK_WIDGET_REALIZED (widget))
- gtk_widget_realize (widget);
-
- if (GTK_WIDGET_MAPPED (widget->parent) &&
- !GTK_WIDGET_MAPPED (widget))
- gtk_widget_map (widget);
- }
-
- paned->child1 = widget;
-
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
- gtk_widget_queue_resize (widget);
+ case CHILD_PROP_RESIZE:
+ if (child == priv->child1)
+ g_value_set_boolean (value, priv->child1_resize);
+ else
+ g_value_set_boolean (value, priv->child2_resize);
+ break;
+ case CHILD_PROP_SHRINK:
+ if (child == priv->child1)
+ g_value_set_boolean (value, priv->child1_shrink);
+ else
+ g_value_set_boolean (value, priv->child2_shrink);
+ break;
+ default:
+ GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+ break;
}
}
-void
-gtk_paned_add2 (GtkPaned *paned,
- GtkWidget *widget)
+static void
+gtk_paned_finalize (GObject *object)
{
- g_return_if_fail (widget != NULL);
+ GtkPaned *paned = GTK_PANED (object);
- if (!paned->child2)
- {
- gtk_widget_set_parent (widget, GTK_WIDGET (paned));
-
- if (GTK_WIDGET_VISIBLE (widget->parent))
- {
- if (GTK_WIDGET_REALIZED (widget->parent) &&
- !GTK_WIDGET_REALIZED (widget))
- gtk_widget_realize (widget);
-
- if (GTK_WIDGET_MAPPED (widget->parent) &&
- !GTK_WIDGET_MAPPED (widget))
- gtk_widget_map (widget);
- }
-
- paned->child2 = widget;
-
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
- gtk_widget_queue_resize (widget);
- }
+ gtk_paned_set_saved_focus (paned, NULL);
+ gtk_paned_set_first_paned (paned, NULL);
+
+ G_OBJECT_CLASS (gtk_paned_parent_class)->finalize (object);
}
static void
-gtk_paned_add (GtkContainer *container,
- GtkWidget *widget)
+get_preferred_size_for_size (GtkWidget *widget,
+ GtkOrientation orientation,
+ gint size,
+ gint *minimum,
+ gint *natural)
{
- GtkPaned *paned;
-
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_PANED (container));
- g_return_if_fail (widget != NULL);
-
- paned = GTK_PANED (container);
-
- if (!paned->child1)
- gtk_paned_add1 (GTK_PANED (container),widget);
- else if (!paned->child2)
- gtk_paned_add2 (GTK_PANED (container),widget);
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ if (size < 0)
+ gtk_widget_get_preferred_width (widget, minimum, natural);
+ else
+ gtk_widget_get_preferred_width_for_height (widget, size, minimum, natural);
+ else
+ if (size < 0)
+ gtk_widget_get_preferred_height (widget, minimum, natural);
+ else
+ gtk_widget_get_preferred_height_for_width (widget, size, minimum, natural);
}
static void
-gtk_paned_remove (GtkContainer *container,
- GtkWidget *widget)
+gtk_paned_get_preferred_size (GtkWidget *widget,
+ GtkOrientation orientation,
+ gint size,
+ gint *minimum,
+ gint *natural)
{
- GtkPaned *paned;
- gboolean was_visible;
-
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_PANED (container));
- g_return_if_fail (widget != NULL);
-
- paned = GTK_PANED (container);
- was_visible = GTK_WIDGET_VISIBLE (widget);
-
- if (paned->child1 == widget)
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+ gint child_min, child_nat;
+
+ *minimum = *natural = 0;
+
+ if (priv->child1 && gtk_widget_get_visible (priv->child1))
{
- gtk_widget_unparent (widget);
-
- paned->child1 = NULL;
-
- if (was_visible && GTK_WIDGET_VISIBLE (container))
- gtk_widget_queue_resize (GTK_WIDGET (container));
+ get_preferred_size_for_size (priv->child1, orientation, size, &child_min, &child_nat);
+ if (priv->child1_shrink && priv->orientation == orientation)
+ *minimum = 0;
+ else
+ *minimum = child_min;
+ *natural = child_nat;
}
- else if (paned->child2 == widget)
+
+ if (priv->child2 && gtk_widget_get_visible (priv->child2))
{
- gtk_widget_unparent (widget);
-
- paned->child2 = NULL;
-
- if (was_visible && GTK_WIDGET_VISIBLE (container))
- gtk_widget_queue_resize (GTK_WIDGET (container));
+ get_preferred_size_for_size (priv->child2, orientation, size, &child_min, &child_nat);
+
+ if (priv->orientation == orientation)
+ {
+ if (!priv->child2_shrink)
+ *minimum += child_min;
+ *natural += child_nat;
+ }
+ else
+ {
+ *minimum = MAX (*minimum, child_min);
+ *natural = MAX (*natural, child_nat);
+ }
+ }
+
+ if (priv->child1 && gtk_widget_get_visible (priv->child1) &&
+ priv->child2 && gtk_widget_get_visible (priv->child2))
+ {
+ gint handle_size;
+
+ gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
+
+ if (priv->orientation == orientation)
+ {
+ *minimum += handle_size;
+ *natural += handle_size;
+ }
}
}
static void
-gtk_paned_forall (GtkContainer *container,
- gboolean include_internals,
- GtkCallback callback,
- gpointer callback_data)
+gtk_paned_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
{
- GtkPaned *paned;
-
- g_return_if_fail (container != NULL);
- g_return_if_fail (GTK_IS_PANED (container));
- g_return_if_fail (callback != NULL);
-
- paned = GTK_PANED (container);
-
- if (paned->child1)
- (* callback) (paned->child1, callback_data);
- if (paned->child2)
- (* callback) (paned->child2, callback_data);
+ gtk_paned_get_preferred_size (widget, GTK_ORIENTATION_HORIZONTAL, -1, minimum, natural);
}
-void
-gtk_paned_handle_size (GtkPaned *paned,
- guint16 size)
+static void
+gtk_paned_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
{
- gint x,y;
-
- g_return_if_fail (paned != NULL);
- g_return_if_fail (GTK_IS_PANED (paned));
+ gtk_paned_get_preferred_size (widget, GTK_ORIENTATION_VERTICAL, -1, minimum, natural);
+}
+
+static void
+gtk_paned_get_preferred_width_for_height (GtkWidget *widget,
+ gint height,
+ gint *minimum,
+ gint *natural)
+{
+ gtk_paned_get_preferred_size (widget, GTK_ORIENTATION_HORIZONTAL, height, minimum, natural);
+}
+
+static void
+gtk_paned_get_preferred_height_for_width (GtkWidget *widget,
+ gint width,
+ gint *minimum,
+ gint *natural)
+{
+ gtk_paned_get_preferred_size (widget, GTK_ORIENTATION_VERTICAL, width, minimum, natural);
+}
+
+static void
+flip_child (GtkWidget *widget,
+ GtkAllocation *child_pos)
+{
+ GtkAllocation allocation;
+ gint x, width;
+
+ gtk_widget_get_allocation (widget, &allocation);
+ x = allocation.x;
+ width = allocation.width;
+
+ child_pos->x = 2 * x + width - child_pos->x - child_pos->width;
+}
+
+static void
+gtk_paned_set_child_visible (GtkPaned *paned,
+ guint id,
+ gboolean visible)
+{
+ GtkPanedPrivate *priv = paned->priv;
+ GtkWidget *child;
+
+ child = id == CHILD1 ? priv->child1 : priv->child2;
+
+ if (child == NULL)
+ return;
- if (paned->handle)
+ gtk_widget_set_child_visible (child, visible);
+
+ if (gtk_widget_get_mapped (GTK_WIDGET (paned)))
{
- gdk_window_get_geometry (paned->handle, &x, &y, NULL, NULL, NULL);
- gdk_window_move_resize (paned->handle,
- x + paned->handle_size / 2 - size / 2,
- y + paned->handle_size / 2 - size / 2,
- size, size);
+ GdkWindow *window = id == CHILD1 ? priv->child1_window : priv->child2_window;
+
+ if (visible != gdk_window_is_visible (window))
+ {
+ if (visible)
+ gdk_window_show (window);
+ else
+ gdk_window_hide (window);
+ }
}
- paned->handle_size = size;
}
-void
-gtk_paned_gutter_size (GtkPaned *paned,
- guint16 size)
+static void
+gtk_paned_child_allocate (GtkWidget *child,
+ GdkWindow *child_window, /* can be NULL */
+ const GtkAllocation *window_allocation,
+ GtkAllocation *child_allocation)
{
- g_return_if_fail (paned != NULL);
- g_return_if_fail (GTK_IS_PANED (paned));
+ if (child_window)
+ gdk_window_move_resize (child_window,
+ window_allocation->x, window_allocation->y,
+ window_allocation->width, window_allocation->height);
- paned->gutter_size = size;
-
- if (GTK_WIDGET_VISIBLE (GTK_WIDGET (paned)))
- gtk_widget_queue_resize (GTK_WIDGET (paned));
+ gtk_widget_size_allocate (child, child_allocation);
+}
+
+static void
+gtk_paned_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ gtk_widget_set_allocation (widget, allocation);
+
+ if (priv->child1 && gtk_widget_get_visible (priv->child1) &&
+ priv->child2 && gtk_widget_get_visible (priv->child2))
+ {
+ GtkAllocation child1_allocation, window1_allocation;
+ GtkAllocation child2_allocation, window2_allocation;
+ GtkAllocation priv_child1_allocation;
+ GdkRectangle old_handle_pos;
+ gint handle_size;
+
+ gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
+
+ old_handle_pos = priv->handle_pos;
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ gint child1_width, child2_width;
+
+ gtk_widget_get_preferred_width_for_height (priv->child1,
+ allocation->height,
+ &child1_width, NULL);
+ gtk_widget_get_preferred_width_for_height (priv->child2,
+ allocation->height,
+ &child2_width, NULL);
+
+ gtk_paned_calc_position (paned,
+ MAX (1, allocation->width - handle_size),
+ child1_width,
+ child2_width);
+
+ priv->handle_pos.x = allocation->x + priv->child1_size;
+ priv->handle_pos.y = allocation->y;
+ priv->handle_pos.width = handle_size;
+ priv->handle_pos.height = allocation->height;
+
+ window1_allocation.height = window2_allocation.height = allocation->height;
+ window1_allocation.width = MAX (1, priv->child1_size);
+ window1_allocation.x = allocation->x;
+ window1_allocation.y = window2_allocation.y = allocation->y;
+
+ window2_allocation.x = window1_allocation.x + priv->child1_size + priv->handle_pos.width;
+ window2_allocation.width = MAX (1, allocation->x + allocation->width - window2_allocation.x);
+
+ if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
+ {
+ flip_child (widget, &(window2_allocation));
+ flip_child (widget, &(window1_allocation));
+ flip_child (widget, &(priv->handle_pos));
+ }
+
+ child1_allocation.x = child1_allocation.y = 0;
+ child1_allocation.width = window1_allocation.width;
+ child1_allocation.height = window1_allocation.height;
+ if (child1_width > child1_allocation.width)
+ {
+ if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_LTR)
+ child1_allocation.x -= child1_width - child1_allocation.width;
+ child1_allocation.width = child1_width;
+ }
+
+ child2_allocation.x = child2_allocation.y = 0;
+ child2_allocation.width = window2_allocation.width;
+ child2_allocation.height = window2_allocation.height;
+ if (child2_width > child2_allocation.width)
+ {
+ if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL)
+ child2_allocation.x -= child2_width - child2_allocation.width;
+ child2_allocation.width = child2_width;
+ }
+ }
+ else
+ {
+ gint child1_height, child2_height;
+
+ gtk_widget_get_preferred_height_for_width (priv->child1,
+ allocation->width,
+ &child1_height, NULL);
+ gtk_widget_get_preferred_height_for_width (priv->child2,
+ allocation->width,
+ &child2_height, NULL);
+
+ gtk_paned_calc_position (paned,
+ MAX (1, allocation->height - handle_size),
+ child1_height,
+ child2_height);
+
+ priv->handle_pos.x = allocation->x;
+ priv->handle_pos.y = allocation->y + priv->child1_size;
+ priv->handle_pos.width = allocation->width;
+ priv->handle_pos.height = handle_size;
+
+ window1_allocation.width = window2_allocation.width = allocation->width;
+ window1_allocation.height = MAX (1, priv->child1_size);
+ window1_allocation.x = window2_allocation.x = allocation->x;
+ window1_allocation.y = allocation->y;
+
+ window2_allocation.y = window1_allocation.y + priv->child1_size + priv->handle_pos.height;
+ window2_allocation.height = MAX (1, allocation->y + allocation->height - window2_allocation.y);
+
+ child1_allocation.x = child1_allocation.y = 0;
+ child1_allocation.width = window1_allocation.width;
+ child1_allocation.height = window1_allocation.height;
+ if (child1_height > child1_allocation.height)
+ {
+ child1_allocation.y -= child1_height - child1_allocation.height;
+ child1_allocation.height = child1_height;
+ }
+
+ child2_allocation.x = child2_allocation.y = 0;
+ child2_allocation.width = window2_allocation.width;
+ child2_allocation.height = window2_allocation.height;
+ if (child2_height > child2_allocation.height)
+ child2_allocation.height = child2_height;
+ }
+
+ if (gtk_widget_get_mapped (widget) &&
+ (old_handle_pos.x != priv->handle_pos.x ||
+ old_handle_pos.y != priv->handle_pos.y ||
+ old_handle_pos.width != priv->handle_pos.width ||
+ old_handle_pos.height != priv->handle_pos.height))
+ {
+ GdkWindow *window;
+
+ window = gtk_widget_get_window (widget);
+ gdk_window_invalidate_rect (window, &old_handle_pos, FALSE);
+ gdk_window_invalidate_rect (window, &priv->handle_pos, FALSE);
+ }
+
+ if (gtk_widget_get_realized (widget))
+ {
+ if (gtk_widget_get_mapped (widget))
+ gdk_window_show (priv->handle);
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ gdk_window_move_resize (priv->handle,
+ priv->handle_pos.x,
+ priv->handle_pos.y,
+ handle_size,
+ priv->handle_pos.height);
+ }
+ else
+ {
+ gdk_window_move_resize (priv->handle,
+ priv->handle_pos.x,
+ priv->handle_pos.y,
+ priv->handle_pos.width,
+ handle_size);
+ }
+ }
+
+ /* Now allocate the childen, making sure, when resizing not to
+ * overlap the windows
+ */
+ gtk_widget_get_allocation (priv->child1, &priv_child1_allocation);
+ if (gtk_widget_get_mapped (widget) &&
+ ((priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
+ priv_child1_allocation.width < child1_allocation.width) ||
+
+ (priv->orientation == GTK_ORIENTATION_VERTICAL &&
+ priv_child1_allocation.height < child1_allocation.height)))
+ {
+ gtk_paned_child_allocate (priv->child2,
+ priv->child2_window,
+ &window2_allocation,
+ &child2_allocation);
+ gtk_paned_child_allocate (priv->child1,
+ priv->child1_window,
+ &window1_allocation,
+ &child1_allocation);
+ }
+ else
+ {
+ gtk_paned_child_allocate (priv->child1,
+ priv->child1_window,
+ &window1_allocation,
+ &child1_allocation);
+ gtk_paned_child_allocate (priv->child2,
+ priv->child2_window,
+ &window2_allocation,
+ &child2_allocation);
+ }
+ }
+ else
+ {
+ GtkAllocation window_allocation, child_allocation;
+
+ if (gtk_widget_get_realized (widget))
+ gdk_window_hide (priv->handle);
+
+ window_allocation.x = allocation->x;
+ window_allocation.y = allocation->y;
+ window_allocation.width = allocation->width;
+ window_allocation.height = allocation->height;
+ child_allocation.x = child_allocation.y = 0;
+ child_allocation.width = allocation->width;
+ child_allocation.height = allocation->height;
+
+ if (priv->child1 && gtk_widget_get_visible (priv->child1))
+ {
+ gtk_paned_set_child_visible (paned, 0, TRUE);
+ if (priv->child2)
+ gtk_paned_set_child_visible (paned, 1, FALSE);
+
+ gtk_paned_child_allocate (priv->child1,
+ priv->child1_window,
+ &window_allocation,
+ &child_allocation);
+ }
+ else if (priv->child2 && gtk_widget_get_visible (priv->child2))
+ {
+ gtk_paned_set_child_visible (paned, 1, TRUE);
+ if (priv->child1)
+ gtk_paned_set_child_visible (paned, 0, FALSE);
+
+ gtk_paned_child_allocate (priv->child2,
+ priv->child2_window,
+ &window_allocation,
+ &child_allocation);
+ }
+ else
+ {
+ if (priv->child1)
+ gtk_paned_set_child_visible (paned, 0, FALSE);
+ if (priv->child2)
+ gtk_paned_set_child_visible (paned, 1, FALSE);
+ }
+ }
+}
+
+static GdkWindow *
+gtk_paned_create_child_window (GtkPaned *paned,
+ GtkWidget *child) /* may be NULL */
+{
+ GtkWidget *widget = GTK_WIDGET (paned);
+ GtkPanedPrivate *priv = paned->priv;
+ GdkWindow *window;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
+ if (child)
+ {
+ GtkAllocation allocation;
+ int handle_size;
+
+ gtk_widget_style_get (widget, "handle-size", &handle_size, NULL);
+
+ gtk_widget_get_allocation (widget, &allocation);
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
+ child == priv->child2 && priv->child1 &&
+ gtk_widget_get_visible (priv->child1))
+ attributes.x = priv->handle_pos.x + handle_size;
+ else
+ attributes.x = allocation.x;
+ if (priv->orientation == GTK_ORIENTATION_VERTICAL &&
+ child == priv->child2 && priv->child1 &&
+ gtk_widget_get_visible (priv->child1))
+ attributes.y = priv->handle_pos.y + handle_size;
+ else
+ attributes.y = allocation.y;
+
+ gtk_widget_get_allocation (child, &allocation);
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
+ attributes_mask = GDK_WA_X | GDK_WA_Y;
+ }
+ else
+ {
+ attributes.width = 1;
+ attributes.height = 1;
+ attributes_mask = 0;
+ }
+
+ window = gdk_window_new (gtk_widget_get_window (widget),
+ &attributes, attributes_mask);
+ gtk_widget_register_window (widget, window);
+ gtk_style_context_set_background (gtk_widget_get_style_context (widget), window);
+
+ if (child)
+ gtk_widget_set_parent_window (child, window);
+
+ return window;
+}
+
+static void
+gtk_paned_realize (GtkWidget *widget)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+ GdkWindow *window;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ gtk_widget_set_realized (widget, TRUE);
+
+ window = gtk_widget_get_parent_window (widget);
+ gtk_widget_set_window (widget, window);
+ g_object_ref (window);
+
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.wclass = GDK_INPUT_ONLY;
+ attributes.x = priv->handle_pos.x;
+ attributes.y = priv->handle_pos.y;
+ attributes.width = priv->handle_pos.width;
+ attributes.height = priv->handle_pos.height;
+ attributes.event_mask = gtk_widget_get_events (widget);
+ attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_ENTER_NOTIFY_MASK |
+ GDK_LEAVE_NOTIFY_MASK |
+ GDK_POINTER_MOTION_MASK);
+ attributes_mask = GDK_WA_X | GDK_WA_Y;
+ if (gtk_widget_is_sensitive (widget))
+ {
+ attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
+ priv->cursor_type);
+ attributes_mask |= GDK_WA_CURSOR;
+ }
+
+ priv->handle = gdk_window_new (window,
+ &attributes, attributes_mask);
+ gtk_widget_register_window (widget, priv->handle);
+ if (attributes_mask & GDK_WA_CURSOR)
+ g_object_unref (attributes.cursor);
+
+ priv->child1_window = gtk_paned_create_child_window (paned, priv->child1);
+ priv->child2_window = gtk_paned_create_child_window (paned, priv->child2);
+}
+
+static void
+gtk_paned_unrealize (GtkWidget *widget)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->child2)
+ gtk_widget_set_parent_window (priv->child2, NULL);
+ gtk_widget_unregister_window (widget, priv->child2_window);
+ gdk_window_destroy (priv->child2_window);
+ priv->child2_window = NULL;
+
+ if (priv->child1)
+ gtk_widget_set_parent_window (priv->child1, NULL);
+ gtk_widget_unregister_window (widget, priv->child1_window);
+ gdk_window_destroy (priv->child1_window);
+ priv->child1_window = NULL;
+
+ if (priv->handle)
+ {
+ gtk_widget_unregister_window (widget, priv->handle);
+ gdk_window_destroy (priv->handle);
+ priv->handle = NULL;
+ }
+
+ gtk_paned_set_last_child1_focus (paned, NULL);
+ gtk_paned_set_last_child2_focus (paned, NULL);
+ gtk_paned_set_saved_focus (paned, NULL);
+ gtk_paned_set_first_paned (paned, NULL);
+
+ GTK_WIDGET_CLASS (gtk_paned_parent_class)->unrealize (widget);
+}
+
+static void
+gtk_paned_map (GtkWidget *widget)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->child1 && gtk_widget_get_visible (priv->child1) &&
+ priv->child2 && gtk_widget_get_visible (priv->child2))
+ gdk_window_show (priv->handle);
+
+ if (priv->child1 && gtk_widget_get_visible (priv->child1) && gtk_widget_get_child_visible (priv->child1))
+ gdk_window_show (priv->child1_window);
+ if (priv->child2 && gtk_widget_get_visible (priv->child2) && gtk_widget_get_child_visible (priv->child2))
+ gdk_window_show (priv->child2_window);
+
+ GTK_WIDGET_CLASS (gtk_paned_parent_class)->map (widget);
+}
+
+static void
+gtk_paned_unmap (GtkWidget *widget)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ gdk_window_hide (priv->handle);
+
+ if (gdk_window_is_visible (priv->child1_window))
+ gdk_window_hide (priv->child1_window);
+ if (gdk_window_is_visible (priv->child2_window))
+ gdk_window_hide (priv->child2_window);
+
+ GTK_WIDGET_CLASS (gtk_paned_parent_class)->unmap (widget);
+}
+
+static gboolean
+gtk_paned_draw (GtkWidget *widget,
+ cairo_t *cr)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (gtk_cairo_should_draw_window (cr, priv->child1_window))
+ {
+ cairo_save (cr);
+ gtk_cairo_transform_to_window (cr, widget, priv->child1_window);
+ gtk_render_background (gtk_widget_get_style_context (widget),
+ cr,
+ 0, 0,
+ gdk_window_get_width (priv->child1_window),
+ gdk_window_get_height (priv->child1_window));
+ cairo_restore (cr);
+ }
+
+ if (gtk_cairo_should_draw_window (cr, priv->child2_window))
+ {
+ cairo_save (cr);
+ gtk_cairo_transform_to_window (cr, widget, priv->child2_window);
+ gtk_render_background (gtk_widget_get_style_context (widget),
+ cr,
+ 0, 0,
+ gdk_window_get_width (priv->child2_window),
+ gdk_window_get_height (priv->child2_window));
+ cairo_restore (cr);
+ }
+
+ if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)) &&
+ priv->child1 && gtk_widget_get_visible (priv->child1) &&
+ priv->child2 && gtk_widget_get_visible (priv->child2))
+ {
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkAllocation allocation;
+
+ gtk_widget_get_allocation (widget, &allocation);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+
+ if (gtk_widget_is_focus (widget))
+ state |= GTK_STATE_FLAG_SELECTED;
+ if (priv->handle_prelit)
+ state |= GTK_STATE_FLAG_PRELIGHT;
+
+ gtk_style_context_save (context);
+ gtk_style_context_set_state (context, state);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_PANE_SEPARATOR);
+ gtk_render_handle (context, cr,
+ priv->handle_pos.x - allocation.x,
+ priv->handle_pos.y - allocation.y,
+ priv->handle_pos.width,
+ priv->handle_pos.height);
+
+ gtk_style_context_restore (context);
+ }
+
+ /* Chain up to draw children */
+ GTK_WIDGET_CLASS (gtk_paned_parent_class)->draw (widget, cr);
+
+ return FALSE;
+}
+
+static gboolean
+is_rtl (GtkPaned *paned)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
+ gtk_widget_get_direction (GTK_WIDGET (paned)) == GTK_TEXT_DIR_RTL)
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+update_drag (GtkPaned *paned,
+ /* relative to priv->handle */
+ int xpos,
+ int ypos)
+{
+ GtkPanedPrivate *priv = paned->priv;
+ GtkAllocation allocation;
+ GtkWidget *widget = GTK_WIDGET (paned);
+ gint pos;
+ gint handle_size;
+ gint size;
+ gint x, y;
+
+ gdk_window_get_position (priv->handle, &x, &y);
+ gtk_widget_get_allocation (widget, &allocation);
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ pos = xpos + x - allocation.x;
+ }
+ else
+ {
+ pos = ypos + y - allocation.y;
+ }
+
+ pos -= priv->drag_pos;
+
+ if (is_rtl (paned))
+ {
+ gtk_widget_style_get (widget,
+ "handle-size", &handle_size,
+ NULL);
+
+ size = allocation.width - pos - handle_size;
+ }
+ else
+ {
+ size = pos;
+ }
+
+ size = CLAMP (size, priv->min_position, priv->max_position);
+
+ if (size != priv->child1_size)
+ gtk_paned_set_position (paned, size);
+}
+
+static gboolean
+gtk_paned_enter (GtkWidget *widget,
+ GdkEventCrossing *event)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->in_drag)
+ update_drag (paned, event->x, event->y);
+ else
+ {
+ priv->handle_prelit = TRUE;
+ gtk_widget_queue_draw_area (widget,
+ priv->handle_pos.x,
+ priv->handle_pos.y,
+ priv->handle_pos.width,
+ priv->handle_pos.height);
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gtk_paned_leave (GtkWidget *widget,
+ GdkEventCrossing *event)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->in_drag)
+ update_drag (paned, event->x, event->y);
+ else
+ {
+ priv->handle_prelit = FALSE;
+ gtk_widget_queue_draw_area (widget,
+ priv->handle_pos.x,
+ priv->handle_pos.y,
+ priv->handle_pos.width,
+ priv->handle_pos.height);
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gtk_paned_focus (GtkWidget *widget,
+ GtkDirectionType direction)
+
+{
+ gboolean retval;
+
+ /* This is a hack, but how can this be done without
+ * excessive cut-and-paste from gtkcontainer.c?
+ */
+
+ gtk_widget_set_can_focus (widget, FALSE);
+ retval = GTK_WIDGET_CLASS (gtk_paned_parent_class)->focus (widget, direction);
+ gtk_widget_set_can_focus (widget, TRUE);
+
+ return retval;
+}
+
+static gboolean
+gtk_paned_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (!priv->in_drag &&
+ (event->window == priv->handle) && (event->button == GDK_BUTTON_PRIMARY))
+ {
+ /* We need a server grab here, not gtk_grab_add(), since
+ * we don't want to pass events on to the widget's children */
+ if (gdk_device_grab (event->device,
+ priv->handle,
+ GDK_OWNERSHIP_WINDOW, FALSE,
+ GDK_BUTTON1_MOTION_MASK
+ | GDK_BUTTON_RELEASE_MASK
+ | GDK_ENTER_NOTIFY_MASK
+ | GDK_LEAVE_NOTIFY_MASK,
+ NULL, event->time) != GDK_GRAB_SUCCESS)
+ return FALSE;
+
+ priv->in_drag = TRUE;
+ priv->grab_time = event->time;
+ priv->grab_device = event->device;
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ priv->drag_pos = event->x;
+ else
+ priv->drag_pos = event->y;
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gtk_paned_grab_broken (GtkWidget *widget,
+ GdkEventGrabBroken *event)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ priv->in_drag = FALSE;
+ priv->drag_pos = -1;
+ priv->position_set = TRUE;
+
+ return TRUE;
+}
+
+static void
+stop_drag (GtkPaned *paned)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ priv->in_drag = FALSE;
+ priv->drag_pos = -1;
+ priv->position_set = TRUE;
+
+ gdk_device_ungrab (priv->grab_device,
+ priv->grab_time);
+ priv->grab_device = NULL;
+}
+
+static void
+gtk_paned_grab_notify (GtkWidget *widget,
+ gboolean was_grabbed)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+ GdkDevice *grab_device;
+
+ grab_device = priv->grab_device;
+
+ if (priv->in_drag && grab_device &&
+ gtk_widget_device_is_shadowed (widget, grab_device))
+ stop_drag (paned);
+}
+
+static void
+gtk_paned_state_flags_changed (GtkWidget *widget,
+ GtkStateFlags previous_state)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+ GdkCursor *cursor;
+
+ if (gtk_widget_get_realized (widget))
+ {
+ if (gtk_widget_is_sensitive (widget))
+ cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
+ priv->cursor_type);
+ else
+ cursor = NULL;
+
+ gdk_window_set_cursor (priv->handle, cursor);
+
+ if (cursor)
+ g_object_unref (cursor);
+ }
+}
+
+static gboolean
+gtk_paned_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->in_drag && (event->button == GDK_BUTTON_PRIMARY))
+ {
+ stop_drag (paned);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gtk_paned_motion (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->in_drag)
+ {
+ update_drag (paned, event->x, event->y);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ * gtk_paned_new:
+ * @orientation: the paned's orientation.
+ *
+ * Creates a new #GtkPaned widget.
+ *
+ * Return value: a new #GtkPaned.
+ *
+ * Since: 3.0
+ **/
+GtkWidget *
+gtk_paned_new (GtkOrientation orientation)
+{
+ return g_object_new (GTK_TYPE_PANED,
+ "orientation", orientation,
+ NULL);
+}
+
+/**
+ * gtk_paned_add1:
+ * @paned: a paned widget
+ * @child: the child to add
+ *
+ * Adds a child to the top or left pane with default parameters. This is
+ * equivalent to
+ * <literal>gtk_paned_pack1 (paned, child, FALSE, TRUE)</literal>.
+ */
+void
+gtk_paned_add1 (GtkPaned *paned,
+ GtkWidget *widget)
+{
+ gtk_paned_pack1 (paned, widget, FALSE, TRUE);
+}
+
+/**
+ * gtk_paned_add2:
+ * @paned: a paned widget
+ * @child: the child to add
+ *
+ * Adds a child to the bottom or right pane with default parameters. This
+ * is equivalent to
+ * <literal>gtk_paned_pack2 (paned, child, TRUE, TRUE)</literal>.
+ */
+void
+gtk_paned_add2 (GtkPaned *paned,
+ GtkWidget *widget)
+{
+ gtk_paned_pack2 (paned, widget, TRUE, TRUE);
+}
+
+/**
+ * gtk_paned_pack1:
+ * @paned: a paned widget
+ * @child: the child to add
+ * @resize: should this child expand when the paned widget is resized.
+ * @shrink: can this child be made smaller than its requisition.
+ *
+ * Adds a child to the top or left pane.
+ */
+void
+gtk_paned_pack1 (GtkPaned *paned,
+ GtkWidget *child,
+ gboolean resize,
+ gboolean shrink)
+{
+ GtkPanedPrivate *priv;
+
+ g_return_if_fail (GTK_IS_PANED (paned));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+
+ priv = paned->priv;
+
+ if (!priv->child1)
+ {
+ priv->child1 = child;
+ priv->child1_resize = resize;
+ priv->child1_shrink = shrink;
+
+ gtk_widget_set_parent_window (child, priv->child1_window);
+ gtk_widget_set_parent (child, GTK_WIDGET (paned));
+ }
+}
+
+/**
+ * gtk_paned_pack2:
+ * @paned: a paned widget
+ * @child: the child to add
+ * @resize: should this child expand when the paned widget is resized.
+ * @shrink: can this child be made smaller than its requisition.
+ *
+ * Adds a child to the bottom or right pane.
+ */
+void
+gtk_paned_pack2 (GtkPaned *paned,
+ GtkWidget *child,
+ gboolean resize,
+ gboolean shrink)
+{
+ GtkPanedPrivate *priv;
+
+ g_return_if_fail (GTK_IS_PANED (paned));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+
+ priv = paned->priv;
+
+ if (!priv->child2)
+ {
+ priv->child2 = child;
+ priv->child2_resize = resize;
+ priv->child2_shrink = shrink;
+
+ gtk_widget_set_parent_window (child, priv->child2_window);
+ gtk_widget_set_parent (child, GTK_WIDGET (paned));
+ }
+}
+
+
+static void
+gtk_paned_add (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GtkPanedPrivate *priv;
+ GtkPaned *paned;
+
+ g_return_if_fail (GTK_IS_PANED (container));
+
+ paned = GTK_PANED (container);
+ priv = paned->priv;
+
+ if (!priv->child1)
+ gtk_paned_add1 (paned, widget);
+ else if (!priv->child2)
+ gtk_paned_add2 (paned, widget);
+ else
+ g_warning ("GtkPaned cannot have more than 2 children\n");
+}
+
+static void
+gtk_paned_remove (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GtkPaned *paned = GTK_PANED (container);
+ GtkPanedPrivate *priv = paned->priv;
+ gboolean was_visible;
+
+ was_visible = gtk_widget_get_visible (widget);
+
+ if (priv->child1 == widget)
+ {
+ if (priv->child1_window && gdk_window_is_visible (priv->child1_window))
+ gdk_window_hide (priv->child1_window);
+
+ gtk_widget_unparent (widget);
+
+ priv->child1 = NULL;
+
+ if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
+ gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container));
+ }
+ else if (priv->child2 == widget)
+ {
+ if (priv->child2_window && gdk_window_is_visible (priv->child2_window))
+ gdk_window_hide (priv->child2_window);
+
+ gtk_widget_unparent (widget);
+
+ priv->child2 = NULL;
+
+ if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
+ gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container));
+ }
+}
+
+static void
+gtk_paned_forall (GtkContainer *container,
+ gboolean include_internals,
+ GtkCallback callback,
+ gpointer callback_data)
+{
+ GtkPanedPrivate *priv;
+ GtkPaned *paned;
+
+ g_return_if_fail (callback != NULL);
+
+ paned = GTK_PANED (container);
+ priv = paned->priv;
+
+ if (priv->child1)
+ (*callback) (priv->child1, callback_data);
+ if (priv->child2)
+ (*callback) (priv->child2, callback_data);
+}
+
+/**
+ * gtk_paned_get_position:
+ * @paned: a #GtkPaned widget
+ *
+ * Obtains the position of the divider between the two panes.
+ *
+ * Return value: position of the divider
+ **/
+gint
+gtk_paned_get_position (GtkPaned *paned)
+{
+ g_return_val_if_fail (GTK_IS_PANED (paned), 0);
+
+ return paned->priv->child1_size;
+}
+
+/**
+ * gtk_paned_set_position:
+ * @paned: a #GtkPaned widget
+ * @position: pixel position of divider, a negative value means that the position
+ * is unset.
+ *
+ * Sets the position of the divider between the two panes.
+ **/
+void
+gtk_paned_set_position (GtkPaned *paned,
+ gint position)
+{
+ GtkPanedPrivate *priv;
+ GObject *object;
+
+ g_return_if_fail (GTK_IS_PANED (paned));
+
+ priv = paned->priv;
+
+ if (priv->child1_size == position)
+ return;
+
+ object = G_OBJECT (paned);
+
+ if (position >= 0)
+ {
+ /* We don't clamp here - the assumption is that
+ * if the total allocation changes at the same time
+ * as the position, the position set is with reference
+ * to the new total size. If only the position changes,
+ * then clamping will occur in gtk_paned_calc_position()
+ */
+
+ priv->child1_size = position;
+ priv->position_set = TRUE;
+ }
+ else
+ {
+ priv->position_set = FALSE;
+ }
+
+ g_object_freeze_notify (object);
+ g_object_notify (object, "position");
+ g_object_notify (object, "position-set");
+ g_object_thaw_notify (object);
+
+ gtk_widget_queue_resize_no_redraw (GTK_WIDGET (paned));
+
+#ifdef G_OS_WIN32
+ /* Hacky work-around for bug #144269 */
+ if (priv->child2 != NULL)
+ {
+ gtk_widget_queue_draw (priv->child2);
+ }
+#endif
+}
+
+/**
+ * gtk_paned_get_child1:
+ * @paned: a #GtkPaned widget
+ *
+ * Obtains the first child of the paned widget.
+ *
+ * Return value: (transfer none): first child, or %NULL if it is not set.
+ *
+ * Since: 2.4
+ **/
+GtkWidget *
+gtk_paned_get_child1 (GtkPaned *paned)
+{
+ g_return_val_if_fail (GTK_IS_PANED (paned), NULL);
+
+ return paned->priv->child1;
+}
+
+/**
+ * gtk_paned_get_child2:
+ * @paned: a #GtkPaned widget
+ *
+ * Obtains the second child of the paned widget.
+ *
+ * Return value: (transfer none): second child, or %NULL if it is not set.
+ *
+ * Since: 2.4
+ **/
+GtkWidget *
+gtk_paned_get_child2 (GtkPaned *paned)
+{
+ g_return_val_if_fail (GTK_IS_PANED (paned), NULL);
+
+ return paned->priv->child2;
+}
+
+static void
+gtk_paned_calc_position (GtkPaned *paned,
+ gint allocation,
+ gint child1_req,
+ gint child2_req)
+{
+ GtkPanedPrivate *priv = paned->priv;
+ gint old_position;
+ gint old_min_position;
+ gint old_max_position;
+
+ old_position = priv->child1_size;
+ old_min_position = priv->min_position;
+ old_max_position = priv->max_position;
+
+ priv->min_position = priv->child1_shrink ? 0 : child1_req;
+
+ priv->max_position = allocation;
+ if (!priv->child2_shrink)
+ priv->max_position = MAX (1, priv->max_position - child2_req);
+ priv->max_position = MAX (priv->min_position, priv->max_position);
+
+ if (!priv->position_set)
+ {
+ if (priv->child1_resize && !priv->child2_resize)
+ priv->child1_size = MAX (0, allocation - child2_req);
+ else if (!priv->child1_resize && priv->child2_resize)
+ priv->child1_size = child1_req;
+ else if (child1_req + child2_req != 0)
+ priv->child1_size = allocation * ((gdouble)child1_req / (child1_req + child2_req)) + 0.5;
+ else
+ priv->child1_size = allocation * 0.5 + 0.5;
+ }
+ else
+ {
+ /* If the position was set before the initial allocation.
+ * (priv->last_allocation <= 0) just clamp it and leave it.
+ */
+ if (priv->last_allocation > 0)
+ {
+ if (priv->child1_resize && !priv->child2_resize)
+ priv->child1_size += allocation - priv->last_allocation;
+ else if (!(!priv->child1_resize && priv->child2_resize))
+ priv->child1_size = allocation * ((gdouble) priv->child1_size / (priv->last_allocation)) + 0.5;
+ }
+ }
+
+ priv->child1_size = CLAMP (priv->child1_size,
+ priv->min_position,
+ priv->max_position);
+
+ if (priv->child1)
+ gtk_paned_set_child_visible (paned, 0, priv->child1_size != 0);
+
+ if (priv->child2)
+ gtk_paned_set_child_visible (paned, 1, priv->child1_size != allocation);
+
+ g_object_freeze_notify (G_OBJECT (paned));
+ if (priv->child1_size != old_position)
+ g_object_notify (G_OBJECT (paned), "position");
+ if (priv->min_position != old_min_position)
+ g_object_notify (G_OBJECT (paned), "min-position");
+ if (priv->max_position != old_max_position)
+ g_object_notify (G_OBJECT (paned), "max-position");
+ g_object_thaw_notify (G_OBJECT (paned));
+
+ priv->last_allocation = allocation;
+}
+
+static void
+gtk_paned_set_saved_focus (GtkPaned *paned, GtkWidget *widget)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->saved_focus)
+ g_object_remove_weak_pointer (G_OBJECT (priv->saved_focus),
+ (gpointer *)&(priv->saved_focus));
+
+ priv->saved_focus = widget;
+
+ if (priv->saved_focus)
+ g_object_add_weak_pointer (G_OBJECT (priv->saved_focus),
+ (gpointer *)&(priv->saved_focus));
+}
+
+static void
+gtk_paned_set_first_paned (GtkPaned *paned, GtkPaned *first_paned)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->first_paned)
+ g_object_remove_weak_pointer (G_OBJECT (priv->first_paned),
+ (gpointer *)&(priv->first_paned));
+
+ priv->first_paned = first_paned;
+
+ if (priv->first_paned)
+ g_object_add_weak_pointer (G_OBJECT (priv->first_paned),
+ (gpointer *)&(priv->first_paned));
+}
+
+static void
+gtk_paned_set_last_child1_focus (GtkPaned *paned, GtkWidget *widget)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->last_child1_focus)
+ g_object_remove_weak_pointer (G_OBJECT (priv->last_child1_focus),
+ (gpointer *)&(priv->last_child1_focus));
+
+ priv->last_child1_focus = widget;
+
+ if (priv->last_child1_focus)
+ g_object_add_weak_pointer (G_OBJECT (priv->last_child1_focus),
+ (gpointer *)&(priv->last_child1_focus));
+}
+
+static void
+gtk_paned_set_last_child2_focus (GtkPaned *paned, GtkWidget *widget)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (priv->last_child2_focus)
+ g_object_remove_weak_pointer (G_OBJECT (priv->last_child2_focus),
+ (gpointer *)&(priv->last_child2_focus));
+
+ priv->last_child2_focus = widget;
+
+ if (priv->last_child2_focus)
+ g_object_add_weak_pointer (G_OBJECT (priv->last_child2_focus),
+ (gpointer *)&(priv->last_child2_focus));
+}
+
+static GtkWidget *
+paned_get_focus_widget (GtkPaned *paned)
+{
+ GtkWidget *toplevel;
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned));
+ if (gtk_widget_is_toplevel (toplevel))
+ return gtk_window_get_focus (GTK_WINDOW (toplevel));
+
+ return NULL;
+}
+
+static void
+gtk_paned_set_focus_child (GtkContainer *container,
+ GtkWidget *focus_child)
+{
+ GtkPaned *paned;
+ GtkPanedPrivate *priv;
+ GtkWidget *container_focus_child;
+
+ g_return_if_fail (GTK_IS_PANED (container));
+
+ paned = GTK_PANED (container);
+ priv = paned->priv;
+
+ if (focus_child == NULL)
+ {
+ GtkWidget *last_focus;
+ GtkWidget *w;
+
+ last_focus = paned_get_focus_widget (paned);
+
+ if (last_focus)
+ {
+ /* If there is one or more paned widgets between us and the
+ * focus widget, we want the topmost of those as last_focus
+ */
+ for (w = last_focus; w != GTK_WIDGET (paned); w = gtk_widget_get_parent (w))
+ if (GTK_IS_PANED (w))
+ last_focus = w;
+
+ container_focus_child = gtk_container_get_focus_child (container);
+ if (container_focus_child == priv->child1)
+ gtk_paned_set_last_child1_focus (paned, last_focus);
+ else if (container_focus_child == priv->child2)
+ gtk_paned_set_last_child2_focus (paned, last_focus);
+ }
+ }
+
+ if (GTK_CONTAINER_CLASS (gtk_paned_parent_class)->set_focus_child)
+ GTK_CONTAINER_CLASS (gtk_paned_parent_class)->set_focus_child (container, focus_child);
+}
+
+static void
+gtk_paned_get_cycle_chain (GtkPaned *paned,
+ GtkDirectionType direction,
+ GList **widgets)
+{
+ GtkPanedPrivate *priv = paned->priv;
+ GtkContainer *container = GTK_CONTAINER (paned);
+ GtkWidget *ancestor = NULL;
+ GtkWidget *focus_child;
+ GtkWidget *parent;
+ GtkWidget *widget = GTK_WIDGET (paned);
+ GList *temp_list = NULL;
+ GList *list;
+
+ if (priv->in_recursion)
+ return;
+
+ g_assert (widgets != NULL);
+
+ if (priv->last_child1_focus &&
+ !gtk_widget_is_ancestor (priv->last_child1_focus, widget))
+ {
+ gtk_paned_set_last_child1_focus (paned, NULL);
+ }
+
+ if (priv->last_child2_focus &&
+ !gtk_widget_is_ancestor (priv->last_child2_focus, widget))
+ {
+ gtk_paned_set_last_child2_focus (paned, NULL);
+ }
+
+ parent = gtk_widget_get_parent (widget);
+ if (parent)
+ ancestor = gtk_widget_get_ancestor (parent, GTK_TYPE_PANED);
+
+ /* The idea here is that temp_list is a list of widgets we want to cycle
+ * to. The list is prioritized so that the first element is our first
+ * choice, the next our second, and so on.
+ *
+ * We can't just use g_list_reverse(), because we want to try
+ * priv->last_child?_focus before priv->child?, both when we
+ * are going forward and backward.
+ */
+ focus_child = gtk_container_get_focus_child (container);
+ if (direction == GTK_DIR_TAB_FORWARD)
+ {
+ if (focus_child == priv->child1)
+ {
+ temp_list = g_list_append (temp_list, priv->last_child2_focus);
+ temp_list = g_list_append (temp_list, priv->child2);
+ temp_list = g_list_append (temp_list, ancestor);
+ }
+ else if (focus_child == priv->child2)
+ {
+ temp_list = g_list_append (temp_list, ancestor);
+ temp_list = g_list_append (temp_list, priv->last_child1_focus);
+ temp_list = g_list_append (temp_list, priv->child1);
+ }
+ else
+ {
+ temp_list = g_list_append (temp_list, priv->last_child1_focus);
+ temp_list = g_list_append (temp_list, priv->child1);
+ temp_list = g_list_append (temp_list, priv->last_child2_focus);
+ temp_list = g_list_append (temp_list, priv->child2);
+ temp_list = g_list_append (temp_list, ancestor);
+ }
+ }
+ else
+ {
+ if (focus_child == priv->child1)
+ {
+ temp_list = g_list_append (temp_list, ancestor);
+ temp_list = g_list_append (temp_list, priv->last_child2_focus);
+ temp_list = g_list_append (temp_list, priv->child2);
+ }
+ else if (focus_child == priv->child2)
+ {
+ temp_list = g_list_append (temp_list, priv->last_child1_focus);
+ temp_list = g_list_append (temp_list, priv->child1);
+ temp_list = g_list_append (temp_list, ancestor);
+ }
+ else
+ {
+ temp_list = g_list_append (temp_list, priv->last_child2_focus);
+ temp_list = g_list_append (temp_list, priv->child2);
+ temp_list = g_list_append (temp_list, priv->last_child1_focus);
+ temp_list = g_list_append (temp_list, priv->child1);
+ temp_list = g_list_append (temp_list, ancestor);
+ }
+ }
+
+ /* Walk the list and expand all the paned widgets. */
+ for (list = temp_list; list != NULL; list = list->next)
+ {
+ GtkWidget *widget = list->data;
+
+ if (widget)
+ {
+ if (GTK_IS_PANED (widget))
+ {
+ priv->in_recursion = TRUE;
+ gtk_paned_get_cycle_chain (GTK_PANED (widget), direction, widgets);
+ priv->in_recursion = FALSE;
+ }
+ else
+ {
+ *widgets = g_list_append (*widgets, widget);
+ }
+ }
+ }
+
+ g_list_free (temp_list);
+}
+
+static gboolean
+gtk_paned_cycle_child_focus (GtkPaned *paned,
+ gboolean reversed)
+{
+ GList *cycle_chain = NULL;
+ GList *list;
+
+ GtkDirectionType direction = reversed? GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD;
+
+ /* ignore f6 if the handle is focused */
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ return TRUE;
+
+ /* we can't just let the event propagate up the hierarchy,
+ * because the paned will want to cycle focus _unless_ an
+ * ancestor paned handles the event
+ */
+ gtk_paned_get_cycle_chain (paned, direction, &cycle_chain);
+
+ for (list = cycle_chain; list != NULL; list = list->next)
+ if (gtk_widget_child_focus (GTK_WIDGET (list->data), direction))
+ break;
+
+ g_list_free (cycle_chain);
+
+ return TRUE;
+}
+
+static void
+get_child_panes (GtkWidget *widget,
+ GList **panes)
+{
+ if (!widget || !gtk_widget_get_realized (widget))
+ return;
+
+ if (GTK_IS_PANED (widget))
+ {
+ GtkPaned *paned = GTK_PANED (widget);
+ GtkPanedPrivate *priv = paned->priv;
+
+ get_child_panes (priv->child1, panes);
+ *panes = g_list_prepend (*panes, widget);
+ get_child_panes (priv->child2, panes);
+ }
+ else if (GTK_IS_CONTAINER (widget))
+ {
+ gtk_container_forall (GTK_CONTAINER (widget),
+ (GtkCallback)get_child_panes, panes);
+ }
+}
+
+static GList *
+get_all_panes (GtkPaned *paned)
+{
+ GtkPaned *topmost = NULL;
+ GList *result = NULL;
+ GtkWidget *w;
+
+ for (w = GTK_WIDGET (paned); w != NULL; w = gtk_widget_get_parent (w))
+ {
+ if (GTK_IS_PANED (w))
+ topmost = GTK_PANED (w);
+ }
+
+ g_assert (topmost);
+
+ get_child_panes (GTK_WIDGET (topmost), &result);
+
+ return g_list_reverse (result);
+}
+
+static void
+gtk_paned_find_neighbours (GtkPaned *paned,
+ GtkPaned **next,
+ GtkPaned **prev)
+{
+ GList *all_panes;
+ GList *this_link;
+
+ all_panes = get_all_panes (paned);
+ g_assert (all_panes);
+
+ this_link = g_list_find (all_panes, paned);
+
+ g_assert (this_link);
+
+ if (this_link->next)
+ *next = this_link->next->data;
+ else
+ *next = all_panes->data;
+
+ if (this_link->prev)
+ *prev = this_link->prev->data;
+ else
+ *prev = g_list_last (all_panes)->data;
+
+ g_list_free (all_panes);
+}
+
+static gboolean
+gtk_paned_move_handle (GtkPaned *paned,
+ GtkScrollType scroll)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ {
+ gint old_position;
+ gint new_position;
+ gint increment;
+
+ enum {
+ SINGLE_STEP_SIZE = 1,
+ PAGE_STEP_SIZE = 75
+ };
+
+ new_position = old_position = gtk_paned_get_position (paned);
+ increment = 0;
+
+ switch (scroll)
+ {
+ case GTK_SCROLL_STEP_LEFT:
+ case GTK_SCROLL_STEP_UP:
+ case GTK_SCROLL_STEP_BACKWARD:
+ increment = - SINGLE_STEP_SIZE;
+ break;
+
+ case GTK_SCROLL_STEP_RIGHT:
+ case GTK_SCROLL_STEP_DOWN:
+ case GTK_SCROLL_STEP_FORWARD:
+ increment = SINGLE_STEP_SIZE;
+ break;
+
+ case GTK_SCROLL_PAGE_LEFT:
+ case GTK_SCROLL_PAGE_UP:
+ case GTK_SCROLL_PAGE_BACKWARD:
+ increment = - PAGE_STEP_SIZE;
+ break;
+
+ case GTK_SCROLL_PAGE_RIGHT:
+ case GTK_SCROLL_PAGE_DOWN:
+ case GTK_SCROLL_PAGE_FORWARD:
+ increment = PAGE_STEP_SIZE;
+ break;
+
+ case GTK_SCROLL_START:
+ new_position = priv->min_position;
+ break;
+
+ case GTK_SCROLL_END:
+ new_position = priv->max_position;
+ break;
+
+ default:
+ break;
+ }
+
+ if (increment)
+ {
+ if (is_rtl (paned))
+ increment = -increment;
+
+ new_position = old_position + increment;
+ }
+
+ new_position = CLAMP (new_position, priv->min_position, priv->max_position);
+
+ if (old_position != new_position)
+ gtk_paned_set_position (paned, new_position);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+gtk_paned_restore_focus (GtkPaned *paned)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ {
+ if (priv->saved_focus &&
+ gtk_widget_get_sensitive (priv->saved_focus))
+ {
+ gtk_widget_grab_focus (priv->saved_focus);
+ }
+ else
+ {
+ /* the saved focus is somehow not available for focusing,
+ * try
+ * 1) tabbing into the paned widget
+ * if that didn't work,
+ * 2) unset focus for the window if there is one
+ */
+
+ if (!gtk_widget_child_focus (GTK_WIDGET (paned), GTK_DIR_TAB_FORWARD))
+ {
+ GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned));
+
+ if (GTK_IS_WINDOW (toplevel))
+ gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
+ }
+ }
+
+ gtk_paned_set_saved_focus (paned, NULL);
+ gtk_paned_set_first_paned (paned, NULL);
+ }
+}
+
+static gboolean
+gtk_paned_accept_position (GtkPaned *paned)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ {
+ priv->original_position = -1;
+ gtk_paned_restore_focus (paned);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+
+static gboolean
+gtk_paned_cancel_position (GtkPaned *paned)
+{
+ GtkPanedPrivate *priv = paned->priv;
+
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ {
+ if (priv->original_position != -1)
+ {
+ gtk_paned_set_position (paned, priv->original_position);
+ priv->original_position = -1;
+ }
+
+ gtk_paned_restore_focus (paned);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gtk_paned_cycle_handle_focus (GtkPaned *paned,
+ gboolean reversed)
+{
+ GtkPanedPrivate *priv = paned->priv;
+ GtkPaned *next, *prev;
+
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ {
+ GtkPaned *focus = NULL;
+
+ if (!priv->first_paned)
+ {
+ /* The first_pane has disappeared. As an ad-hoc solution,
+ * we make the currently focused paned the first_paned. To the
+ * user this will seem like the paned cycling has been reset.
+ */
+
+ gtk_paned_set_first_paned (paned, paned);
+ }
+
+ gtk_paned_find_neighbours (paned, &next, &prev);
+
+ if (reversed && prev &&
+ prev != paned && paned != priv->first_paned)
+ {
+ focus = prev;
+ }
+ else if (!reversed && next &&
+ next != paned && next != priv->first_paned)
+ {
+ focus = next;
+ }
+ else
+ {
+ gtk_paned_accept_position (paned);
+ return TRUE;
+ }
+
+ g_assert (focus);
+
+ gtk_paned_set_saved_focus (focus, priv->saved_focus);
+ gtk_paned_set_first_paned (focus, priv->first_paned);
+
+ gtk_paned_set_saved_focus (paned, NULL);
+ gtk_paned_set_first_paned (paned, NULL);
+
+ gtk_widget_grab_focus (GTK_WIDGET (focus));
+
+ if (!gtk_widget_is_focus (GTK_WIDGET (paned)))
+ {
+ priv->original_position = -1;
+ focus->priv->original_position = gtk_paned_get_position (focus);
+ }
+ }
+ else
+ {
+ GtkContainer *container = GTK_CONTAINER (paned);
+ GtkPaned *focus;
+ GtkPaned *first;
+ GtkPaned *prev, *next;
+ GtkWidget *toplevel;
+ GtkWidget *focus_child;
+
+ gtk_paned_find_neighbours (paned, &next, &prev);
+ focus_child = gtk_container_get_focus_child (container);
+
+ if (focus_child == priv->child1)
+ {
+ if (reversed)
+ {
+ focus = prev;
+ first = paned;
+ }
+ else
+ {
+ focus = paned;
+ first = paned;
+ }
+ }
+ else if (focus_child == priv->child2)
+ {
+ if (reversed)
+ {
+ focus = paned;
+ first = next;
+ }
+ else
+ {
+ focus = next;
+ first = next;
+ }
+ }
+ else
+ {
+ /* Focus is not inside this paned, and we don't have focus.
+ * Presumably this happened because the application wants us
+ * to start keyboard navigating.
+ */
+ focus = paned;
+
+ if (reversed)
+ first = paned;
+ else
+ first = next;
+ }
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned));
+
+ if (GTK_IS_WINDOW (toplevel))
+ gtk_paned_set_saved_focus (focus, gtk_window_get_focus (GTK_WINDOW (toplevel)));
+ gtk_paned_set_first_paned (focus, first);
+ focus->priv->original_position = gtk_paned_get_position (focus);
+
+ gtk_widget_grab_focus (GTK_WIDGET (focus));
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gtk_paned_toggle_handle_focus (GtkPaned *paned)
+{
+ /* This function/signal has the wrong name. It is called when you
+ * press Tab or Shift-Tab and what we do is act as if
+ * the user pressed Return and then Tab or Shift-Tab
+ */
+ if (gtk_widget_is_focus (GTK_WIDGET (paned)))
+ gtk_paned_accept_position (paned);
+
+ return FALSE;
+}
+
+/**
+ * gtk_paned_get_handle_window:
+ * @paned: a #GtkPaned
+ *
+ * Returns the #GdkWindow of the handle. This function is
+ * useful when handling button or motion events because it
+ * enables the callback to distinguish between the window
+ * of the paned, a child and the handle.
+ *
+ * Return value: (transfer none): the paned's handle window.
+ *
+ * Since: 2.20
+ **/
+GdkWindow *
+gtk_paned_get_handle_window (GtkPaned *paned)
+{
+ g_return_val_if_fail (GTK_IS_PANED (paned), NULL);
+
+ return paned->priv->handle;
}
projects / ~andy / gtk / blobdiff