X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=gtk%2Fgtkpaned.c;h=64b04299741640954fcf54a4b289c805e8456f2a;hb=1a312bfa3e32414065a87d7376a9bff8c61f0560;hp=c1d8780b324049e41069e765dd8cb87481c00420;hpb=4851efe29604e1d950dc9711d9d7ced69771f2e9;p=~andy%2Fgtk diff --git a/gtk/gtkpaned.c b/gtk/gtkpaned.c index c1d8780b3..64b042997 100644 --- a/gtk/gtkpaned.c +++ b/gtk/gtkpaned.c @@ -2,424 +2,2230 @@ * 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 + * You should have received a copy of the GNU Lesser 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. */ -#include "gtkpaned.h" +/* + * 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/. + */ -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_foreach (GtkContainer *container, - GtkCallback callback, - gpointer callback_data); +#include "config.h" +#include "gdk/gdkkeysyms.h" +#include "gtkbindings.h" +#include "gtkmain.h" +#include "gtkmarshalers.h" +#include "gtkorientable.h" +#include "gtkpaned.h" +#include "gtkwindow.h" +#include "gtkprivate.h" +#include "gtkintl.h" +#include "gtkalias.h" + +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 void gtk_paned_size_request (GtkWidget *widget, + GtkRequisition *requisition); +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_changed (GtkWidget *widget, + GtkStateType previous_state); +static gboolean gtk_paned_expose (GtkWidget *widget, + GdkEventExpose *event); +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); + +static GType gtk_paned_child_type (GtkContainer *container); +static void gtk_paned_grab_notify (GtkWidget *widget, + gboolean was_grabbed); + +struct _GtkPanedPrivate +{ + GtkOrientation orientation; + GtkWidget *saved_focus; + GtkPaned *first_paned; + guint32 grab_time; +}; -static GtkContainerClass *parent_class = NULL; +G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkPaned, gtk_paned, GTK_TYPE_CONTAINER, + G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, + NULL)) -guint -gtk_paned_get_type (void) -{ - static guint paned_type = 0; +static guint signals[LAST_SIGNAL] = { 0 }; - if (!paned_type) - { - GtkTypeInfo paned_info = - { - "GtkPaned", - sizeof (GtkPaned), - sizeof (GtkPanedClass), - (GtkClassInitFunc) gtk_paned_class_init, - (GtkObjectInitFunc) gtk_paned_init, - (GtkArgSetFunc) NULL, - (GtkArgGetFunc) NULL, - }; - paned_type = gtk_type_unique (gtk_container_get_type (), &paned_info); - } +static void +add_tab_bindings (GtkBindingSet *binding_set, + GdkModifierType modifiers) +{ + gtk_binding_entry_add_signal (binding_set, GDK_Tab, modifiers, + "toggle-handle-focus", 0); + gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, modifiers, + "toggle-handle-focus", 0); +} - return paned_type; +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; + GtkPanedClass *paned_class; + GtkBindingSet *binding_set; - object_class = (GtkObjectClass*) class; - widget_class = (GtkWidgetClass*) class; - container_class = (GtkContainerClass*) class; + object_class = (GObjectClass *) class; + widget_class = (GtkWidgetClass *) class; + container_class = (GtkContainerClass *) class; + paned_class = (GtkPanedClass *) class; - parent_class = gtk_type_class (gtk_container_get_type ()); + object_class->set_property = gtk_paned_set_property; + object_class->get_property = gtk_paned_get_property; + object_class->finalize = gtk_paned_finalize; + widget_class->size_request = gtk_paned_size_request; + 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->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_changed = gtk_paned_state_changed; container_class->add = gtk_paned_add; container_class->remove = gtk_paned_remove; - container_class->foreach = gtk_paned_foreach; + 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; + + 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 + * keybinding signal + * 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 + * keybinding signal + * 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 + * keybinding signal + * 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 + * keybinding signal + * 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 + * keybinding signal + * 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 + * keybinding signal + * 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_F6, 0, + "cycle-child-focus", 1, + G_TYPE_BOOLEAN, FALSE); + gtk_binding_entry_add_signal (binding_set, + GDK_F6, GDK_SHIFT_MASK, + "cycle-child-focus", 1, + G_TYPE_BOOLEAN, TRUE); + + /* F8 and friends */ + gtk_binding_entry_add_signal (binding_set, + GDK_F8, 0, + "cycle-handle-focus", 1, + G_TYPE_BOOLEAN, FALSE); + + gtk_binding_entry_add_signal (binding_set, + GDK_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_Escape, 0, + "cancel-position", 0); + + gtk_binding_entry_add_signal (binding_set, + GDK_Return, 0, + "accept-position", 0); + gtk_binding_entry_add_signal (binding_set, + GDK_ISO_Enter, 0, + "accept-position", 0); + gtk_binding_entry_add_signal (binding_set, + GDK_KP_Enter, 0, + "accept-position", 0); + gtk_binding_entry_add_signal (binding_set, + GDK_space, 0, + "accept-position", 0); + gtk_binding_entry_add_signal (binding_set, + GDK_KP_Space, 0, + "accept-position", 0); + + /* move handle */ + add_move_binding (binding_set, GDK_Left, 0, GTK_SCROLL_STEP_LEFT); + add_move_binding (binding_set, GDK_KP_Left, 0, GTK_SCROLL_STEP_LEFT); + add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_LEFT); + add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_LEFT); + + add_move_binding (binding_set, GDK_Right, 0, GTK_SCROLL_STEP_RIGHT); + add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_RIGHT); + add_move_binding (binding_set, GDK_KP_Right, 0, GTK_SCROLL_STEP_RIGHT); + add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_RIGHT); + + add_move_binding (binding_set, GDK_Up, 0, GTK_SCROLL_STEP_UP); + add_move_binding (binding_set, GDK_Up, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_UP); + add_move_binding (binding_set, GDK_KP_Up, 0, GTK_SCROLL_STEP_UP); + add_move_binding (binding_set, GDK_KP_Up, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_UP); + add_move_binding (binding_set, GDK_Page_Up, 0, GTK_SCROLL_PAGE_UP); + add_move_binding (binding_set, GDK_KP_Page_Up, 0, GTK_SCROLL_PAGE_UP); + + add_move_binding (binding_set, GDK_Down, 0, GTK_SCROLL_STEP_DOWN); + add_move_binding (binding_set, GDK_Down, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_DOWN); + add_move_binding (binding_set, GDK_KP_Down, 0, GTK_SCROLL_STEP_DOWN); + add_move_binding (binding_set, GDK_KP_Down, GDK_CONTROL_MASK, GTK_SCROLL_PAGE_DOWN); + add_move_binding (binding_set, GDK_Page_Down, 0, GTK_SCROLL_PAGE_RIGHT); + add_move_binding (binding_set, GDK_KP_Page_Down, 0, GTK_SCROLL_PAGE_RIGHT); + + add_move_binding (binding_set, GDK_Home, 0, GTK_SCROLL_START); + add_move_binding (binding_set, GDK_KP_Home, 0, GTK_SCROLL_START); + add_move_binding (binding_set, GDK_End, 0, GTK_SCROLL_END); + add_move_binding (binding_set, GDK_KP_End, 0, GTK_SCROLL_END); + + g_type_class_add_private (object_class, sizeof (GtkPanedPrivate)); +} + +static GType +gtk_paned_child_type (GtkContainer *container) +{ + if (!GTK_PANED (container)->child1 || !GTK_PANED (container)->child2) + return GTK_TYPE_WIDGET; + else + return G_TYPE_NONE; } static void gtk_paned_init (GtkPaned *paned) { - GTK_WIDGET_UNSET_FLAGS (paned, GTK_NO_WINDOW); + GTK_WIDGET_SET_FLAGS (paned, GTK_NO_WINDOW | GTK_CAN_FOCUS); + + /* 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); + + paned->priv = G_TYPE_INSTANCE_GET_PRIVATE (paned, GTK_TYPE_PANED, GtkPanedPrivate); + + paned->priv->orientation = GTK_ORIENTATION_HORIZONTAL; + paned->cursor_type = GDK_SB_H_DOUBLE_ARROW; paned->child1 = NULL; paned->child2 = NULL; paned->handle = NULL; paned->xor_gc = NULL; - - paned->handle_size = 10; - paned->gutter_size = 6; + paned->cursor_type = GDK_CROSS; + + paned->handle_pos.width = 5; + paned->handle_pos.height = 5; paned->position_set = FALSE; + paned->last_allocation = -1; paned->in_drag = FALSE; - paned->handle_xpos = -1; - paned->handle_ypos = -1; -} + paned->last_child1_focus = NULL; + paned->last_child2_focus = NULL; + paned->in_recursion = FALSE; + paned->handle_prelit = FALSE; + paned->original_position = -1; + + paned->handle_pos.x = -1; + paned->handle_pos.y = -1; + paned->drag_pos = -1; +} static void -gtk_paned_realize (GtkWidget *widget) +gtk_paned_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) { - 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; + GtkPaned *paned = GTK_PANED (object); - paned->handle = gdk_window_new (widget->window, - &attributes, attributes_mask); - gdk_window_set_user_data (paned->handle, paned); + switch (prop_id) + { + case PROP_ORIENTATION: + paned->priv->orientation = g_value_get_enum (value); + paned->orientation = !paned->priv->orientation; - widget->style = gtk_style_attach (widget->style, widget->window); + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + paned->cursor_type = GDK_SB_H_DOUBLE_ARROW; + else + paned->cursor_type = GDK_SB_V_DOUBLE_ARROW; + + /* state_changed updates the cursor */ + gtk_paned_state_changed (GTK_WIDGET (paned), GTK_WIDGET (paned)->state); + 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: + paned->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; + } +} - gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); - gtk_style_set_background (widget->style, paned->handle, GTK_STATE_NORMAL); +static void +gtk_paned_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + GtkPaned *paned = GTK_PANED (object); - gdk_window_show (paned->handle); + switch (prop_id) + { + case PROP_ORIENTATION: + g_value_set_enum (value, paned->priv->orientation); + break; + case PROP_POSITION: + g_value_set_int (value, paned->child1_size); + break; + case PROP_POSITION_SET: + g_value_set_boolean (value, paned->position_set); + break; + case PROP_MIN_POSITION: + g_value_set_int (value, paned->min_position); + break; + case PROP_MAX_POSITION: + g_value_set_int (value, paned->max_position); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } } - + static void -gtk_paned_map (GtkWidget *widget) +gtk_paned_set_child_property (GtkContainer *container, + GtkWidget *child, + guint property_id, + const GValue *value, + GParamSpec *pspec) { - GtkPaned *paned; + GtkPaned *paned = GTK_PANED (container); + gboolean old_value, new_value; - g_return_if_fail (widget != NULL); - g_return_if_fail (GTK_IS_PANED (widget)); + g_assert (child == paned->child1 || child == paned->child2); - GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); - paned = GTK_PANED (widget); + new_value = g_value_get_boolean (value); + switch (property_id) + { + case CHILD_PROP_RESIZE: + if (child == paned->child1) + { + old_value = paned->child1_resize; + paned->child1_resize = new_value; + } + else + { + old_value = paned->child2_resize; + paned->child2_resize = new_value; + } + break; + case CHILD_PROP_SHRINK: + if (child == paned->child1) + { + old_value = paned->child1_shrink; + paned->child1_shrink = new_value; + } + else + { + old_value = paned->child2_shrink; + paned->child2_shrink = new_value; + } + break; + default: + GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); + old_value = -1; /* quiet gcc */ + break; + } + if (old_value != new_value) + gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container)); +} - gdk_window_show (widget->window); +static void +gtk_paned_get_child_property (GtkContainer *container, + GtkWidget *child, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GtkPaned *paned = GTK_PANED (container); - 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); + g_assert (child == paned->child1 || child == paned->child2); + + switch (property_id) + { + case CHILD_PROP_RESIZE: + if (child == paned->child1) + g_value_set_boolean (value, paned->child1_resize); + else + g_value_set_boolean (value, paned->child2_resize); + break; + case CHILD_PROP_SHRINK: + if (child == paned->child1) + g_value_set_boolean (value, paned->child1_shrink); + else + g_value_set_boolean (value, paned->child2_shrink); + break; + default: + GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec); + break; + } } static void -gtk_paned_unmap (GtkWidget *widget) +gtk_paned_finalize (GObject *object) { - g_return_if_fail (widget != NULL); - g_return_if_fail (GTK_IS_PANED (widget)); - - GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); + GtkPaned *paned = GTK_PANED (object); + + gtk_paned_set_saved_focus (paned, NULL); + gtk_paned_set_first_paned (paned, NULL); - gdk_window_hide (widget->window); + G_OBJECT_CLASS (gtk_paned_parent_class)->finalize (object); } static void -gtk_paned_unrealize (GtkWidget *widget) +gtk_paned_size_request (GtkWidget *widget, + GtkRequisition *requisition) { - GtkPaned *paned; + GtkPaned *paned = GTK_PANED (widget); + GtkRequisition child_requisition; - g_return_if_fail (widget != NULL); - g_return_if_fail (GTK_IS_PANED (widget)); + requisition->width = 0; + requisition->height = 0; - paned = GTK_PANED (widget); + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1)) + { + gtk_widget_size_request (paned->child1, &child_requisition); - if (paned->xor_gc) + requisition->height = child_requisition.height; + requisition->width = child_requisition.width; + } + + if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) { - gdk_gc_destroy (paned->xor_gc); - paned->xor_gc = NULL; + gtk_widget_size_request (paned->child2, &child_requisition); + + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + { + requisition->height = MAX (requisition->height, + child_requisition.height); + requisition->width += child_requisition.width; + } + else + { + requisition->width = MAX (requisition->width, + child_requisition.width); + requisition->height += child_requisition.height; + } } - if (paned->handle) + requisition->width += GTK_CONTAINER (paned)->border_width * 2; + requisition->height += GTK_CONTAINER (paned)->border_width * 2; + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) { - gdk_window_set_user_data (paned->handle, NULL); - gdk_window_destroy (paned->handle); - paned->handle = NULL; - gdk_cursor_destroy (paned->cursor); - paned->cursor = NULL; + gint handle_size; + + gtk_widget_style_get (widget, "handle-size", &handle_size, NULL); + + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + requisition->width += handle_size; + else + requisition->height += handle_size; } +} + +static void +flip_child (GtkWidget *widget, + GtkAllocation *child_pos) +{ + gint x = widget->allocation.x; + gint width = widget->allocation.width; - if (GTK_WIDGET_CLASS (parent_class)->unrealize) - (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); + child_pos->x = 2 * x + width - child_pos->x - child_pos->width; } -static gint -gtk_paned_expose (GtkWidget *widget, - GdkEventExpose *event) +static void +gtk_paned_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) { - GtkPaned *paned; - GdkEventExpose child_event; + GtkPaned *paned = GTK_PANED (widget); + gint border_width = GTK_CONTAINER (paned)->border_width; - 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); + widget->allocation = *allocation; - if (GTK_WIDGET_DRAWABLE (widget)) + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) { - paned = GTK_PANED (widget); + GtkRequisition child1_requisition; + GtkRequisition child2_requisition; + GtkAllocation child1_allocation; + GtkAllocation child2_allocation; + GdkRectangle old_handle_pos; + gint handle_size; + + gtk_widget_style_get (widget, "handle-size", &handle_size, NULL); + + gtk_widget_get_child_requisition (paned->child1, &child1_requisition); + gtk_widget_get_child_requisition (paned->child2, &child2_requisition); + + old_handle_pos = paned->handle_pos; + + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + { + gtk_paned_calc_position (paned, + MAX (1, widget->allocation.width + - handle_size + - 2 * border_width), + child1_requisition.width, + child2_requisition.width); + + paned->handle_pos.x = widget->allocation.x + paned->child1_size + border_width; + paned->handle_pos.y = widget->allocation.y + border_width; + paned->handle_pos.width = handle_size; + paned->handle_pos.height = MAX (1, widget->allocation.height - 2 * border_width); + + child1_allocation.height = child2_allocation.height = MAX (1, (gint) allocation->height - border_width * 2); + child1_allocation.width = MAX (1, paned->child1_size); + child1_allocation.x = widget->allocation.x + border_width; + child1_allocation.y = child2_allocation.y = widget->allocation.y + border_width; + + child2_allocation.x = child1_allocation.x + paned->child1_size + paned->handle_pos.width; + child2_allocation.width = MAX (1, widget->allocation.x + widget->allocation.width - child2_allocation.x - border_width); + + if (gtk_widget_get_direction (GTK_WIDGET (widget)) == GTK_TEXT_DIR_RTL) + { + flip_child (widget, &(child2_allocation)); + flip_child (widget, &(child1_allocation)); + flip_child (widget, &(paned->handle_pos)); + } + } + else + { + gtk_paned_calc_position (paned, + MAX (1, widget->allocation.height + - handle_size + - 2 * border_width), + child1_requisition.height, + child2_requisition.height); + + paned->handle_pos.x = widget->allocation.x + border_width; + paned->handle_pos.y = widget->allocation.y + paned->child1_size + border_width; + paned->handle_pos.width = MAX (1, (gint) widget->allocation.width - 2 * border_width); + paned->handle_pos.height = handle_size; + + child1_allocation.width = child2_allocation.width = MAX (1, (gint) allocation->width - border_width * 2); + child1_allocation.height = MAX (1, paned->child1_size); + child1_allocation.x = child2_allocation.x = widget->allocation.x + border_width; + child1_allocation.y = widget->allocation.y + border_width; + + child2_allocation.y = child1_allocation.y + paned->child1_size + paned->handle_pos.height; + child2_allocation.height = MAX (1, widget->allocation.y + widget->allocation.height - child2_allocation.y - border_width); + } + + if (GTK_WIDGET_MAPPED (widget) && + (old_handle_pos.x != paned->handle_pos.x || + old_handle_pos.y != paned->handle_pos.y || + old_handle_pos.width != paned->handle_pos.width || + old_handle_pos.height != paned->handle_pos.height)) + { + gdk_window_invalidate_rect (widget->window, &old_handle_pos, FALSE); + gdk_window_invalidate_rect (widget->window, &paned->handle_pos, FALSE); + } + + if (GTK_WIDGET_REALIZED (widget)) + { + if (GTK_WIDGET_MAPPED (widget)) + gdk_window_show (paned->handle); + + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + { + gdk_window_move_resize (paned->handle, + paned->handle_pos.x, + paned->handle_pos.y, + handle_size, + paned->handle_pos.height); + } + else + { + gdk_window_move_resize (paned->handle, + paned->handle_pos.x, + paned->handle_pos.y, + paned->handle_pos.width, + handle_size); + } + } + + /* Now allocate the childen, making sure, when resizing not to + * overlap the windows + */ + if (GTK_WIDGET_MAPPED (widget) && - /* An expose event for the handle */ - if (event->window == paned->handle) + ((paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL && + paned->child1->allocation.width < child1_allocation.width) || + + (paned->priv->orientation == GTK_ORIENTATION_VERTICAL && + paned->child1->allocation.height < child1_allocation.height))) { - gdk_window_set_background (paned->handle, - &widget->style->bg[widget->state]); - gdk_window_clear (paned->handle); - gtk_draw_shadow (widget->style, paned->handle, - GTK_WIDGET_STATE(widget), - GTK_SHADOW_OUT, 0, 0, - paned->handle_size, paned->handle_size); + gtk_widget_size_allocate (paned->child2, &child2_allocation); + gtk_widget_size_allocate (paned->child1, &child1_allocation); } 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); + gtk_widget_size_allocate (paned->child1, &child1_allocation); + gtk_widget_size_allocate (paned->child2, &child2_allocation); } } - return FALSE; + else + { + GtkAllocation child_allocation; + + if (GTK_WIDGET_REALIZED (widget)) + gdk_window_hide (paned->handle); + + if (paned->child1) + gtk_widget_set_child_visible (paned->child1, TRUE); + if (paned->child2) + gtk_widget_set_child_visible (paned->child2, TRUE); + + child_allocation.x = widget->allocation.x + border_width; + child_allocation.y = widget->allocation.y + border_width; + child_allocation.width = MAX (1, allocation->width - 2 * border_width); + child_allocation.height = MAX (1, allocation->height - 2 * border_width); + + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1)) + gtk_widget_size_allocate (paned->child1, &child_allocation); + else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + gtk_widget_size_allocate (paned->child2, &child_allocation); + } } -void -gtk_paned_add1 (GtkPaned *paned, - GtkWidget *widget) +static void +gtk_paned_realize (GtkWidget *widget) { - g_return_if_fail (widget != NULL); + GtkPaned *paned; + GdkWindowAttr attributes; + gint attributes_mask; - if (!paned->child1) + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + paned = GTK_PANED (widget); + + widget->window = gtk_widget_get_parent_window (widget); + g_object_ref (widget->window); + + attributes.window_type = GDK_WINDOW_CHILD; + attributes.wclass = GDK_INPUT_ONLY; + attributes.x = paned->handle_pos.x; + attributes.y = paned->handle_pos.y; + attributes.width = paned->handle_pos.width; + attributes.height = paned->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 | + GDK_POINTER_MOTION_HINT_MASK); + attributes_mask = GDK_WA_X | GDK_WA_Y; + if (GTK_WIDGET_IS_SENSITIVE (widget)) { - gtk_widget_set_parent (widget, GTK_WIDGET (paned)); + attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), + paned->cursor_type); + attributes_mask |= GDK_WA_CURSOR; + } - 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->handle = gdk_window_new (widget->window, + &attributes, attributes_mask); + gdk_window_set_user_data (paned->handle, paned); + if (attributes_mask & GDK_WA_CURSOR) + gdk_cursor_unref (attributes.cursor); - paned->child1 = widget; + widget->style = gtk_style_attach (widget->style, widget->window); - if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned)) - gtk_widget_queue_resize (widget); - } + if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + gdk_window_show (paned->handle); } -void -gtk_paned_add2 (GtkPaned *paned, - GtkWidget *widget) +static void +gtk_paned_unrealize (GtkWidget *widget) { - g_return_if_fail (widget != NULL); + GtkPaned *paned = GTK_PANED (widget); - if (!paned->child2) + if (paned->xor_gc) { - gtk_widget_set_parent (widget, GTK_WIDGET (paned)); + g_object_unref (paned->xor_gc); + paned->xor_gc = NULL; + } - 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); - } + if (paned->handle) + { + gdk_window_set_user_data (paned->handle, NULL); + gdk_window_destroy (paned->handle); + paned->handle = NULL; + } - paned->child2 = widget; + 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); - if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned)) - gtk_widget_queue_resize (widget); - } + GTK_WIDGET_CLASS (gtk_paned_parent_class)->unrealize (widget); } static void -gtk_paned_add (GtkContainer *container, - GtkWidget *widget) +gtk_paned_map (GtkWidget *widget) { - GtkPaned *paned; - - g_return_if_fail (container != NULL); - g_return_if_fail (GTK_IS_PANED (container)); - g_return_if_fail (widget != NULL); + GtkPaned *paned = GTK_PANED (widget); - paned = GTK_PANED (container); + gdk_window_show (paned->handle); - if (!paned->child1) - gtk_paned_add1 (GTK_PANED (container),widget); - else if (!paned->child2) - gtk_paned_add2 (GTK_PANED (container),widget); + GTK_WIDGET_CLASS (gtk_paned_parent_class)->map (widget); } static void -gtk_paned_remove (GtkContainer *container, - GtkWidget *widget) +gtk_paned_unmap (GtkWidget *widget) { - GtkPaned *paned; - gboolean was_visible; + GtkPaned *paned = GTK_PANED (widget); + + gdk_window_hide (paned->handle); - g_return_if_fail (container != NULL); - g_return_if_fail (GTK_IS_PANED (container)); - g_return_if_fail (widget != NULL); + GTK_WIDGET_CLASS (gtk_paned_parent_class)->unmap (widget); +} - paned = GTK_PANED (container); - was_visible = GTK_WIDGET_VISIBLE (widget); +static gboolean +gtk_paned_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GtkPaned *paned = GTK_PANED (widget); + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget) && + paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) && + paned->child2 && GTK_WIDGET_VISIBLE (paned->child2)) + { + GtkStateType state; + + if (gtk_widget_is_focus (widget)) + state = GTK_STATE_SELECTED; + else if (paned->handle_prelit) + state = GTK_STATE_PRELIGHT; + else + state = GTK_WIDGET_STATE (widget); + + gtk_paint_handle (widget->style, widget->window, + state, GTK_SHADOW_NONE, + &paned->handle_pos, widget, "paned", + paned->handle_pos.x, paned->handle_pos.y, + paned->handle_pos.width, paned->handle_pos.height, + !paned->priv->orientation); + } + + /* Chain up to draw children */ + GTK_WIDGET_CLASS (gtk_paned_parent_class)->expose_event (widget, event); - if (paned->child1 == widget) + return FALSE; +} + +static gboolean +is_rtl (GtkPaned *paned) +{ + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL && + gtk_widget_get_direction (GTK_WIDGET (paned)) == GTK_TEXT_DIR_RTL) { - gtk_widget_unparent (widget); + return TRUE; + } - paned->child1 = NULL; + return FALSE; +} - if (was_visible && GTK_WIDGET_VISIBLE (container)) - gtk_widget_queue_resize (GTK_WIDGET (container)); +static void +update_drag (GtkPaned *paned) +{ + gint pos; + gint handle_size; + gint size; + + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + gtk_widget_get_pointer (GTK_WIDGET (paned), &pos, NULL); + else + gtk_widget_get_pointer (GTK_WIDGET (paned), NULL, &pos); + + pos -= paned->drag_pos; + + if (is_rtl (paned)) + { + gtk_widget_style_get (GTK_WIDGET (paned), + "handle-size", &handle_size, + NULL); + + size = GTK_WIDGET (paned)->allocation.width - pos - handle_size; } - else if (paned->child2 == widget) + else { - gtk_widget_unparent (widget); + size = pos; + } - paned->child2 = NULL; + size -= GTK_CONTAINER (paned)->border_width; + + size = CLAMP (size, paned->min_position, paned->max_position); - if (was_visible && GTK_WIDGET_VISIBLE (container)) - gtk_widget_queue_resize (GTK_WIDGET (container)); + if (size != paned->child1_size) + gtk_paned_set_position (paned, size); +} + +static gboolean +gtk_paned_enter (GtkWidget *widget, + GdkEventCrossing *event) +{ + GtkPaned *paned = GTK_PANED (widget); + + if (paned->in_drag) + update_drag (paned); + else + { + paned->handle_prelit = TRUE; + gtk_widget_queue_draw_area (widget, + paned->handle_pos.x, + paned->handle_pos.y, + paned->handle_pos.width, + paned->handle_pos.height); } + + return TRUE; } -static void -gtk_paned_foreach (GtkContainer *container, - GtkCallback callback, - gpointer callback_data) +static gboolean +gtk_paned_leave (GtkWidget *widget, + GdkEventCrossing *event) { - GtkPaned *paned; + GtkPaned *paned = GTK_PANED (widget); + + if (paned->in_drag) + update_drag (paned); + else + { + paned->handle_prelit = FALSE; + gtk_widget_queue_draw_area (widget, + paned->handle_pos.x, + paned->handle_pos.y, + paned->handle_pos.width, + paned->handle_pos.height); + } - g_return_if_fail (container != NULL); - g_return_if_fail (GTK_IS_PANED (container)); - g_return_if_fail (callback != NULL); + return TRUE; +} - paned = GTK_PANED (container); +static gboolean +gtk_paned_focus (GtkWidget *widget, + GtkDirectionType direction) - if (paned->child1) - (* callback) (paned->child1, callback_data); - if (paned->child2) - (* callback) (paned->child2, callback_data); +{ + gboolean retval; + + /* This is a hack, but how can this be done without + * excessive cut-and-paste from gtkcontainer.c? + */ + + GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_FOCUS); + retval = GTK_WIDGET_CLASS (gtk_paned_parent_class)->focus (widget, direction); + GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS); + + return retval; } -void -gtk_paned_handle_size (GtkPaned *paned, guint16 size) +static gboolean +gtk_paned_button_press (GtkWidget *widget, + GdkEventButton *event) { - gint x,y; + GtkPaned *paned = GTK_PANED (widget); - if (paned->handle) + if (!paned->in_drag && + (event->window == paned->handle) && (event->button == 1)) { - 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); + /* 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_pointer_grab (paned->handle, FALSE, + GDK_POINTER_MOTION_HINT_MASK + | GDK_BUTTON1_MOTION_MASK + | GDK_BUTTON_RELEASE_MASK + | GDK_ENTER_NOTIFY_MASK + | GDK_LEAVE_NOTIFY_MASK, + NULL, NULL, + event->time) != GDK_GRAB_SUCCESS) + return FALSE; + + paned->in_drag = TRUE; + paned->priv->grab_time = event->time; + + if (paned->priv->orientation == GTK_ORIENTATION_HORIZONTAL) + paned->drag_pos = event->x; + else + paned->drag_pos = event->y; + + return TRUE; } - - paned->handle_size = size; + + return FALSE; } -void -gtk_paned_gutter_size (GtkPaned *paned, guint16 size) +static gboolean +gtk_paned_grab_broken (GtkWidget *widget, + GdkEventGrabBroken *event) +{ + GtkPaned *paned = GTK_PANED (widget); + + paned->in_drag = FALSE; + paned->drag_pos = -1; + paned->position_set = TRUE; + + return TRUE; +} + +static void +stop_drag (GtkPaned *paned) { - paned->gutter_size = size; + paned->in_drag = FALSE; + paned->drag_pos = -1; + paned->position_set = TRUE; + gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (paned)), + paned->priv->grab_time); +} + +static void +gtk_paned_grab_notify (GtkWidget *widget, + gboolean was_grabbed) +{ + GtkPaned *paned = GTK_PANED (widget); + + if (!was_grabbed && paned->in_drag) + stop_drag (paned); +} - if (GTK_WIDGET_VISIBLE (GTK_WIDGET (paned))) - gtk_widget_queue_resize (GTK_WIDGET (paned)); +static void +gtk_paned_state_changed (GtkWidget *widget, + GtkStateType previous_state) +{ + GtkPaned *paned = GTK_PANED (widget); + GdkCursor *cursor; + + if (GTK_WIDGET_REALIZED (paned)) + { + if (GTK_WIDGET_IS_SENSITIVE (widget)) + cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), + paned->cursor_type); + else + cursor = NULL; + + gdk_window_set_cursor (paned->handle, cursor); + + if (cursor) + gdk_cursor_unref (cursor); + } +} + +static gboolean +gtk_paned_button_release (GtkWidget *widget, + GdkEventButton *event) +{ + GtkPaned *paned = GTK_PANED (widget); + + if (paned->in_drag && (event->button == 1)) + { + stop_drag (paned); + + return TRUE; + } + + return FALSE; +} + +static gboolean +gtk_paned_motion (GtkWidget *widget, + GdkEventMotion *event) +{ + GtkPaned *paned = GTK_PANED (widget); + + if (paned->in_drag) + { + update_drag (paned); + return TRUE; + } + + return FALSE; +} + +#if 0 +/** + * gtk_paned_new: + * @orientation: the paned's orientation. + * + * Creates a new #GtkPaned widget. + * + * Return value: a new #GtkPaned. + * + * Since: 2.16 + **/ +GtkWidget * +gtk_paned_new (GtkOrientation orientation) +{ + return g_object_new (GTK_TYPE_PANED, + "orientation", orientation, + NULL); +} +#endif + +void +gtk_paned_add1 (GtkPaned *paned, + GtkWidget *widget) +{ + gtk_paned_pack1 (paned, widget, FALSE, TRUE); +} + +void +gtk_paned_add2 (GtkPaned *paned, + GtkWidget *widget) +{ + gtk_paned_pack2 (paned, widget, TRUE, TRUE); +} + +void +gtk_paned_pack1 (GtkPaned *paned, + GtkWidget *child, + gboolean resize, + gboolean shrink) +{ + g_return_if_fail (GTK_IS_PANED (paned)); + g_return_if_fail (GTK_IS_WIDGET (child)); + + if (!paned->child1) + { + paned->child1 = child; + paned->child1_resize = resize; + paned->child1_shrink = shrink; + + gtk_widget_set_parent (child, GTK_WIDGET (paned)); + } +} + +void +gtk_paned_pack2 (GtkPaned *paned, + GtkWidget *child, + gboolean resize, + gboolean shrink) +{ + g_return_if_fail (GTK_IS_PANED (paned)); + g_return_if_fail (GTK_IS_WIDGET (child)); + + if (!paned->child2) + { + paned->child2 = child; + paned->child2_resize = resize; + paned->child2_shrink = shrink; + + gtk_widget_set_parent (child, GTK_WIDGET (paned)); + } +} + + +static void +gtk_paned_add (GtkContainer *container, + GtkWidget *widget) +{ + GtkPaned *paned; + + g_return_if_fail (GTK_IS_PANED (container)); + + paned = GTK_PANED (container); + + if (!paned->child1) + gtk_paned_add1 (paned, widget); + else if (!paned->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; + gboolean was_visible; + + paned = GTK_PANED (container); + was_visible = GTK_WIDGET_VISIBLE (widget); + + if (paned->child1 == widget) + { + gtk_widget_unparent (widget); + + paned->child1 = NULL; + + if (was_visible && GTK_WIDGET_VISIBLE (container)) + gtk_widget_queue_resize_no_redraw (GTK_WIDGET (container)); + } + else if (paned->child2 == widget) + { + gtk_widget_unparent (widget); + + paned->child2 = NULL; + + if (was_visible && GTK_WIDGET_VISIBLE (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) +{ + GtkPaned *paned; + + 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_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->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) +{ + GObject *object; + + g_return_if_fail (GTK_IS_PANED (paned)); + + 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() + */ + + paned->child1_size = position; + paned->position_set = TRUE; + } + else + { + paned->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 (paned->child2 != NULL) + { + gtk_widget_queue_draw (paned->child2); + } +#endif +} + +/** + * gtk_paned_get_child1: + * @paned: a #GtkPaned widget + * + * Obtains the first child of the paned widget. + * + * Return value: 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->child1; +} + +/** + * gtk_paned_get_child2: + * @paned: a #GtkPaned widget + * + * Obtains the second child of the paned widget. + * + * Return value: 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->child2; +} + +void +gtk_paned_compute_position (GtkPaned *paned, + gint allocation, + gint child1_req, + gint child2_req) +{ + g_return_if_fail (GTK_IS_PANED (paned)); + + gtk_paned_calc_position (paned, allocation, child1_req, child2_req); +} + +static void +gtk_paned_calc_position (GtkPaned *paned, + gint allocation, + gint child1_req, + gint child2_req) +{ + gint old_position; + gint old_min_position; + gint old_max_position; + + old_position = paned->child1_size; + old_min_position = paned->min_position; + old_max_position = paned->max_position; + + paned->min_position = paned->child1_shrink ? 0 : child1_req; + + paned->max_position = allocation; + if (!paned->child2_shrink) + paned->max_position = MAX (1, paned->max_position - child2_req); + paned->max_position = MAX (paned->min_position, paned->max_position); + + if (!paned->position_set) + { + if (paned->child1_resize && !paned->child2_resize) + paned->child1_size = MAX (0, allocation - child2_req); + else if (!paned->child1_resize && paned->child2_resize) + paned->child1_size = child1_req; + else if (child1_req + child2_req != 0) + paned->child1_size = allocation * ((gdouble)child1_req / (child1_req + child2_req)) + 0.5; + else + paned->child1_size = allocation * 0.5 + 0.5; + } + else + { + /* If the position was set before the initial allocation. + * (paned->last_allocation <= 0) just clamp it and leave it. + */ + if (paned->last_allocation > 0) + { + if (paned->child1_resize && !paned->child2_resize) + paned->child1_size += allocation - paned->last_allocation; + else if (!(!paned->child1_resize && paned->child2_resize)) + paned->child1_size = allocation * ((gdouble) paned->child1_size / (paned->last_allocation)) + 0.5; + } + } + + paned->child1_size = CLAMP (paned->child1_size, + paned->min_position, + paned->max_position); + + if (paned->child1) + gtk_widget_set_child_visible (paned->child1, paned->child1_size != 0); + + if (paned->child2) + gtk_widget_set_child_visible (paned->child2, paned->child1_size != allocation); + + g_object_freeze_notify (G_OBJECT (paned)); + if (paned->child1_size != old_position) + g_object_notify (G_OBJECT (paned), "position"); + if (paned->min_position != old_min_position) + g_object_notify (G_OBJECT (paned), "min-position"); + if (paned->max_position != old_max_position) + g_object_notify (G_OBJECT (paned), "max-position"); + g_object_thaw_notify (G_OBJECT (paned)); + + paned->last_allocation = allocation; +} + +static void +gtk_paned_set_saved_focus (GtkPaned *paned, GtkWidget *widget) +{ + if (paned->priv->saved_focus) + g_object_remove_weak_pointer (G_OBJECT (paned->priv->saved_focus), + (gpointer *)&(paned->priv->saved_focus)); + + paned->priv->saved_focus = widget; + + if (paned->priv->saved_focus) + g_object_add_weak_pointer (G_OBJECT (paned->priv->saved_focus), + (gpointer *)&(paned->priv->saved_focus)); +} + +static void +gtk_paned_set_first_paned (GtkPaned *paned, GtkPaned *first_paned) +{ + if (paned->priv->first_paned) + g_object_remove_weak_pointer (G_OBJECT (paned->priv->first_paned), + (gpointer *)&(paned->priv->first_paned)); + + paned->priv->first_paned = first_paned; + + if (paned->priv->first_paned) + g_object_add_weak_pointer (G_OBJECT (paned->priv->first_paned), + (gpointer *)&(paned->priv->first_paned)); +} + +static void +gtk_paned_set_last_child1_focus (GtkPaned *paned, GtkWidget *widget) +{ + if (paned->last_child1_focus) + g_object_remove_weak_pointer (G_OBJECT (paned->last_child1_focus), + (gpointer *)&(paned->last_child1_focus)); + + paned->last_child1_focus = widget; + + if (paned->last_child1_focus) + g_object_add_weak_pointer (G_OBJECT (paned->last_child1_focus), + (gpointer *)&(paned->last_child1_focus)); +} + +static void +gtk_paned_set_last_child2_focus (GtkPaned *paned, GtkWidget *widget) +{ + if (paned->last_child2_focus) + g_object_remove_weak_pointer (G_OBJECT (paned->last_child2_focus), + (gpointer *)&(paned->last_child2_focus)); + + paned->last_child2_focus = widget; + + if (paned->last_child2_focus) + g_object_add_weak_pointer (G_OBJECT (paned->last_child2_focus), + (gpointer *)&(paned->last_child2_focus)); +} + +static GtkWidget * +paned_get_focus_widget (GtkPaned *paned) +{ + GtkWidget *toplevel; + + toplevel = gtk_widget_get_toplevel (GTK_WIDGET (paned)); + if (GTK_WIDGET_TOPLEVEL (toplevel)) + return GTK_WINDOW (toplevel)->focus_widget; + + return NULL; +} + +static void +gtk_paned_set_focus_child (GtkContainer *container, + GtkWidget *focus_child) +{ + GtkPaned *paned; + + g_return_if_fail (GTK_IS_PANED (container)); + + paned = GTK_PANED (container); + + 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 = w->parent) + if (GTK_IS_PANED (w)) + last_focus = w; + + if (container->focus_child == paned->child1) + gtk_paned_set_last_child1_focus (paned, last_focus); + else if (container->focus_child == paned->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) +{ + GtkContainer *container = GTK_CONTAINER (paned); + GtkWidget *ancestor = NULL; + GList *temp_list = NULL; + GList *list; + + if (paned->in_recursion) + return; + + g_assert (widgets != NULL); + + if (paned->last_child1_focus && + !gtk_widget_is_ancestor (paned->last_child1_focus, GTK_WIDGET (paned))) + { + gtk_paned_set_last_child1_focus (paned, NULL); + } + + if (paned->last_child2_focus && + !gtk_widget_is_ancestor (paned->last_child2_focus, GTK_WIDGET (paned))) + { + gtk_paned_set_last_child2_focus (paned, NULL); + } + + if (GTK_WIDGET (paned)->parent) + ancestor = gtk_widget_get_ancestor (GTK_WIDGET (paned)->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 + * paned->last_child?_focus before paned->child?, both when we + * are going forward and backward. + */ + if (direction == GTK_DIR_TAB_FORWARD) + { + if (container->focus_child == paned->child1) + { + temp_list = g_list_append (temp_list, paned->last_child2_focus); + temp_list = g_list_append (temp_list, paned->child2); + temp_list = g_list_append (temp_list, ancestor); + } + else if (container->focus_child == paned->child2) + { + temp_list = g_list_append (temp_list, ancestor); + temp_list = g_list_append (temp_list, paned->last_child1_focus); + temp_list = g_list_append (temp_list, paned->child1); + } + else + { + temp_list = g_list_append (temp_list, paned->last_child1_focus); + temp_list = g_list_append (temp_list, paned->child1); + temp_list = g_list_append (temp_list, paned->last_child2_focus); + temp_list = g_list_append (temp_list, paned->child2); + temp_list = g_list_append (temp_list, ancestor); + } + } + else + { + if (container->focus_child == paned->child1) + { + temp_list = g_list_append (temp_list, ancestor); + temp_list = g_list_append (temp_list, paned->last_child2_focus); + temp_list = g_list_append (temp_list, paned->child2); + } + else if (container->focus_child == paned->child2) + { + temp_list = g_list_append (temp_list, paned->last_child1_focus); + temp_list = g_list_append (temp_list, paned->child1); + temp_list = g_list_append (temp_list, ancestor); + } + else + { + temp_list = g_list_append (temp_list, paned->last_child2_focus); + temp_list = g_list_append (temp_list, paned->child2); + temp_list = g_list_append (temp_list, paned->last_child1_focus); + temp_list = g_list_append (temp_list, paned->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)) + { + paned->in_recursion = TRUE; + gtk_paned_get_cycle_chain (GTK_PANED (widget), direction, widgets); + paned->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_REALIZED (widget)) + return; + + if (GTK_IS_PANED (widget)) + { + GtkPaned *paned = GTK_PANED (widget); + + get_child_panes (paned->child1, panes); + *panes = g_list_prepend (*panes, widget); + get_child_panes (paned->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 = w->parent) + { + 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) +{ + 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 = paned->min_position; + break; + + case GTK_SCROLL_END: + new_position = paned->max_position; + break; + + default: + break; + } + + if (increment) + { + if (is_rtl (paned)) + increment = -increment; + + new_position = old_position + increment; + } + + new_position = CLAMP (new_position, paned->min_position, paned->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) +{ + if (gtk_widget_is_focus (GTK_WIDGET (paned))) + { + if (paned->priv->saved_focus && + GTK_WIDGET_SENSITIVE (paned->priv->saved_focus)) + { + gtk_widget_grab_focus (paned->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) +{ + if (gtk_widget_is_focus (GTK_WIDGET (paned))) + { + paned->original_position = -1; + gtk_paned_restore_focus (paned); + + return TRUE; + } + + return FALSE; +} + + +static gboolean +gtk_paned_cancel_position (GtkPaned *paned) +{ + if (gtk_widget_is_focus (GTK_WIDGET (paned))) + { + if (paned->original_position != -1) + { + gtk_paned_set_position (paned, paned->original_position); + paned->original_position = -1; + } + + gtk_paned_restore_focus (paned); + return TRUE; + } + + return FALSE; +} + +static gboolean +gtk_paned_cycle_handle_focus (GtkPaned *paned, + gboolean reversed) +{ + GtkPaned *next, *prev; + + if (gtk_widget_is_focus (GTK_WIDGET (paned))) + { + GtkPaned *focus = NULL; + + if (!paned->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 != paned->priv->first_paned) + { + focus = prev; + } + else if (!reversed && next && + next != paned && next != paned->priv->first_paned) + { + focus = next; + } + else + { + gtk_paned_accept_position (paned); + return TRUE; + } + + g_assert (focus); + + gtk_paned_set_saved_focus (focus, paned->priv->saved_focus); + gtk_paned_set_first_paned (focus, paned->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))) + { + paned->original_position = -1; + focus->original_position = gtk_paned_get_position (focus); + } + } + else + { + GtkContainer *container = GTK_CONTAINER (paned); + GtkPaned *focus; + GtkPaned *first; + GtkPaned *prev, *next; + GtkWidget *toplevel; + + gtk_paned_find_neighbours (paned, &next, &prev); + + if (container->focus_child == paned->child1) + { + if (reversed) + { + focus = prev; + first = paned; + } + else + { + focus = paned; + first = paned; + } + } + else if (container->focus_child == paned->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 (toplevel)->focus_widget); + gtk_paned_set_first_paned (focus, first); + focus->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; } +#define __GTK_PANED_C__ +#include "gtkaliasdef.c"