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authorMatthias Clasen <mclasen@redhat.com>2011-11-01 22:52:32 -0400
committerMatthias Clasen <mclasen@redhat.com>2011-11-01 23:51:18 -0400
commit068e1f03901ae0b5aa6819d64a122fd2fa5be643 (patch)
tree23b84f4f70751c40f872f74b32c63534f7bbae78 /gtk/deprecated/gtkhandlebox.c
parent98db3dd5ddde5b8096e67c8f3429942bf5b431ce (diff)
downloadgtk+-068e1f03901ae0b5aa6819d64a122fd2fa5be643.tar.gz
Move wholly deprecated files to a subdirectory
Also install their headers to a subdirectory.
Diffstat (limited to 'gtk/deprecated/gtkhandlebox.c')
-rw-r--r--gtk/deprecated/gtkhandlebox.c1636
1 files changed, 1636 insertions, 0 deletions
diff --git a/gtk/deprecated/gtkhandlebox.c b/gtk/deprecated/gtkhandlebox.c
new file mode 100644
index 0000000000..2c6c1e3be3
--- /dev/null
+++ b/gtk/deprecated/gtkhandlebox.c
@@ -0,0 +1,1636 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ * Copyright (C) 1998 Elliot Lee
+ *
+ * This library is free software; you can redistribute it and/or
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * 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.
+ */
+
+/*
+ * 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 <stdlib.h>
+
+#define GDK_DISABLE_DEPRECATION_WARNINGS
+
+#include "gtkhandlebox.h"
+#include "gtkinvisible.h"
+#include "gtkmain.h"
+#include "gtkmarshalers.h"
+#include "gtkwindow.h"
+#include "gtktypebuiltins.h"
+#include "gtkprivate.h"
+#include "gtkintl.h"
+
+
+/**
+ * SECTION:gtkhandlebox
+ * @Short_description: a widget for detachable window portions
+ * @Title: GtkHandleBox
+ *
+ * The #GtkHandleBox widget allows a portion of a window to be "torn
+ * off". It is a bin widget which displays its child and a handle that
+ * the user can drag to tear off a separate window (the <firstterm>float
+ * window</firstterm>) containing the child widget. A thin
+ * <firstterm>ghost</firstterm> is drawn in the original location of the
+ * handlebox. By dragging the separate window back to its original
+ * location, it can be reattached.
+ *
+ * When reattaching, the ghost and float window, must be aligned
+ * along one of the edges, the <firstterm>snap edge</firstterm>.
+ * This either can be specified by the application programmer
+ * explicitely, or GTK+ will pick a reasonable default based
+ * on the handle position.
+ *
+ * To make detaching and reattaching the handlebox as minimally confusing
+ * as possible to the user, it is important to set the snap edge so that
+ * the snap edge does not move when the handlebox is deattached. For
+ * instance, if the handlebox is packed at the bottom of a VBox, then
+ * when the handlebox is detached, the bottom edge of the handlebox's
+ * allocation will remain fixed as the height of the handlebox shrinks,
+ * so the snap edge should be set to %GTK_POS_BOTTOM.
+ *
+ * <note>
+ * #GtkHandleBox has been deprecated. It is very specialized, lacks features
+ * to make it useful and most importantly does not fit well into modern
+ * application design. Do not use it. There is no replacement.
+ * </note>
+ */
+
+
+struct _GtkHandleBoxPrivate
+{
+ /* Properties */
+ GtkPositionType handle_position;
+ GtkPositionType snap_edge;
+ GtkShadowType shadow_type;
+ gboolean child_detached;
+ /* Properties */
+
+ GtkAllocation attach_allocation;
+ GtkAllocation float_allocation;
+
+ GdkDevice *grab_device;
+
+ GdkWindow *bin_window; /* parent window for children */
+ GdkWindow *float_window;
+
+ /* Variables used during a drag
+ */
+ gint orig_x;
+ gint orig_y;
+
+ guint float_window_mapped : 1;
+ guint in_drag : 1;
+ guint shrink_on_detach : 1;
+};
+
+enum {
+ PROP_0,
+ PROP_SHADOW_TYPE,
+ PROP_HANDLE_POSITION,
+ PROP_SNAP_EDGE,
+ PROP_SNAP_EDGE_SET,
+ PROP_CHILD_DETACHED
+};
+
+#define DRAG_HANDLE_SIZE 10
+#define CHILDLESS_SIZE 25
+#define GHOST_HEIGHT 3
+#define TOLERANCE 5
+
+enum {
+ SIGNAL_CHILD_ATTACHED,
+ SIGNAL_CHILD_DETACHED,
+ SIGNAL_LAST
+};
+
+/* The algorithm for docking and redocking implemented here
+ * has a couple of nice properties:
+ *
+ * 1) During a single drag, docking always occurs at the
+ * the same cursor position. This means that the users
+ * motions are reversible, and that you won't
+ * undock/dock oscillations.
+ *
+ * 2) Docking generally occurs at user-visible features.
+ * The user, once they figure out to redock, will
+ * have useful information about doing it again in
+ * the future.
+ *
+ * Please try to preserve these properties if you
+ * change the algorithm. (And the current algorithm
+ * is far from ideal). Briefly, the current algorithm
+ * for deciding whether the handlebox is docked or not:
+ *
+ * 1) The decision is done by comparing two rectangles - the
+ * allocation if the widget at the start of the drag,
+ * and the boundary of hb->bin_window at the start of
+ * of the drag offset by the distance that the cursor
+ * has moved.
+ *
+ * 2) These rectangles must have one edge, the "snap_edge"
+ * of the handlebox, aligned within TOLERANCE.
+ *
+ * 3) On the other dimension, the extents of one rectangle
+ * must be contained in the extents of the other,
+ * extended by tolerance. That is, either we can have:
+ *
+ * <-TOLERANCE-|--------bin_window--------------|-TOLERANCE->
+ * <--------float_window-------------------->
+ *
+ * or we can have:
+ *
+ * <-TOLERANCE-|------float_window--------------|-TOLERANCE->
+ * <--------bin_window-------------------->
+ */
+
+static void gtk_handle_box_set_property (GObject *object,
+ guint param_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_handle_box_get_property (GObject *object,
+ guint param_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_handle_box_map (GtkWidget *widget);
+static void gtk_handle_box_unmap (GtkWidget *widget);
+static void gtk_handle_box_realize (GtkWidget *widget);
+static void gtk_handle_box_unrealize (GtkWidget *widget);
+static void gtk_handle_box_style_updated (GtkWidget *widget);
+static void gtk_handle_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void gtk_handle_box_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_handle_box_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_handle_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *real_allocation);
+static void gtk_handle_box_add (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_handle_box_remove (GtkContainer *container,
+ GtkWidget *widget);
+static gboolean gtk_handle_box_draw (GtkWidget *widget,
+ cairo_t *cr);
+static gboolean gtk_handle_box_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_handle_box_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+static gboolean gtk_handle_box_delete_event (GtkWidget *widget,
+ GdkEventAny *event);
+static void gtk_handle_box_reattach (GtkHandleBox *hb);
+static void gtk_handle_box_end_drag (GtkHandleBox *hb,
+ guint32 time);
+
+static guint handle_box_signals[SIGNAL_LAST] = { 0 };
+
+G_DEFINE_TYPE (GtkHandleBox, gtk_handle_box, GTK_TYPE_BIN)
+
+static void
+gtk_handle_box_class_init (GtkHandleBoxClass *class)
+{
+ GObjectClass *gobject_class;
+ GtkWidgetClass *widget_class;
+ GtkContainerClass *container_class;
+
+ gobject_class = (GObjectClass *) class;
+ widget_class = (GtkWidgetClass *) class;
+ container_class = (GtkContainerClass *) class;
+
+ gobject_class->set_property = gtk_handle_box_set_property;
+ gobject_class->get_property = gtk_handle_box_get_property;
+
+ g_object_class_install_property (gobject_class,
+ PROP_SHADOW_TYPE,
+ g_param_spec_enum ("shadow-type",
+ P_("Shadow type"),
+ P_("Appearance of the shadow that surrounds the container"),
+ GTK_TYPE_SHADOW_TYPE,
+ GTK_SHADOW_OUT,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_HANDLE_POSITION,
+ g_param_spec_enum ("handle-position",
+ P_("Handle position"),
+ P_("Position of the handle relative to the child widget"),
+ GTK_TYPE_POSITION_TYPE,
+ GTK_POS_LEFT,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SNAP_EDGE,
+ g_param_spec_enum ("snap-edge",
+ P_("Snap edge"),
+ P_("Side of the handlebox that's lined up with the docking point to dock the handlebox"),
+ GTK_TYPE_POSITION_TYPE,
+ GTK_POS_TOP,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SNAP_EDGE_SET,
+ g_param_spec_boolean ("snap-edge-set",
+ P_("Snap edge set"),
+ P_("Whether to use the value from the snap_edge property or a value derived from handle_position"),
+ FALSE,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_CHILD_DETACHED,
+ g_param_spec_boolean ("child-detached",
+ P_("Child Detached"),
+ P_("A boolean value indicating whether the handlebox's child is attached or detached."),
+ FALSE,
+ GTK_PARAM_READABLE));
+
+ widget_class->map = gtk_handle_box_map;
+ widget_class->unmap = gtk_handle_box_unmap;
+ widget_class->realize = gtk_handle_box_realize;
+ widget_class->unrealize = gtk_handle_box_unrealize;
+ widget_class->style_updated = gtk_handle_box_style_updated;
+ widget_class->get_preferred_width = gtk_handle_box_get_preferred_width;
+ widget_class->get_preferred_height = gtk_handle_box_get_preferred_height;
+ widget_class->size_allocate = gtk_handle_box_size_allocate;
+ widget_class->draw = gtk_handle_box_draw;
+ widget_class->button_press_event = gtk_handle_box_button_press;
+ widget_class->delete_event = gtk_handle_box_delete_event;
+
+ container_class->add = gtk_handle_box_add;
+ container_class->remove = gtk_handle_box_remove;
+
+ class->child_attached = NULL;
+ class->child_detached = NULL;
+
+ /**
+ * GtkHandleBox::child-attached:
+ * @handlebox: the object which received the signal.
+ * @widget: the child widget of the handlebox.
+ * (this argument provides no extra information
+ * and is here only for backwards-compatibility)
+ *
+ * This signal is emitted when the contents of the
+ * handlebox are reattached to the main window.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ */
+ handle_box_signals[SIGNAL_CHILD_ATTACHED] =
+ g_signal_new (I_("child-attached"),
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GtkHandleBoxClass, child_attached),
+ NULL, NULL,
+ _gtk_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ GTK_TYPE_WIDGET);
+
+ /**
+ * GtkHandleBox::child-detached:
+ * @handlebox: the object which received the signal.
+ * @widget: the child widget of the handlebox.
+ * (this argument provides no extra information
+ * and is here only for backwards-compatibility)
+ *
+ * This signal is emitted when the contents of the
+ * handlebox are detached from the main window.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ */
+ handle_box_signals[SIGNAL_CHILD_DETACHED] =
+ g_signal_new (I_("child-detached"),
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GtkHandleBoxClass, child_detached),
+ NULL, NULL,
+ _gtk_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1,
+ GTK_TYPE_WIDGET);
+
+ g_type_class_add_private (gobject_class, sizeof (GtkHandleBoxPrivate));
+}
+
+static void
+gtk_handle_box_init (GtkHandleBox *handle_box)
+{
+ GtkHandleBoxPrivate *priv;
+ GtkStyleContext *context;
+
+ handle_box->priv = G_TYPE_INSTANCE_GET_PRIVATE (handle_box,
+ GTK_TYPE_HANDLE_BOX,
+ GtkHandleBoxPrivate);
+ priv = handle_box->priv;
+
+ gtk_widget_set_has_window (GTK_WIDGET (handle_box), TRUE);
+
+ priv->bin_window = NULL;
+ priv->float_window = NULL;
+ priv->shadow_type = GTK_SHADOW_OUT;
+ priv->handle_position = GTK_POS_LEFT;
+ priv->float_window_mapped = FALSE;
+ priv->child_detached = FALSE;
+ priv->in_drag = FALSE;
+ priv->shrink_on_detach = TRUE;
+ priv->snap_edge = -1;
+
+ context = gtk_widget_get_style_context (GTK_WIDGET (handle_box));
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_DOCK);
+}
+
+static void
+gtk_handle_box_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkHandleBox *handle_box = GTK_HANDLE_BOX (object);
+
+ switch (prop_id)
+ {
+ case PROP_SHADOW_TYPE:
+ gtk_handle_box_set_shadow_type (handle_box, g_value_get_enum (value));
+ break;
+ case PROP_HANDLE_POSITION:
+ gtk_handle_box_set_handle_position (handle_box, g_value_get_enum (value));
+ break;
+ case PROP_SNAP_EDGE:
+ gtk_handle_box_set_snap_edge (handle_box, g_value_get_enum (value));
+ break;
+ case PROP_SNAP_EDGE_SET:
+ if (!g_value_get_boolean (value))
+ gtk_handle_box_set_snap_edge (handle_box, (GtkPositionType)-1);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_handle_box_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkHandleBox *handle_box = GTK_HANDLE_BOX (object);
+ GtkHandleBoxPrivate *priv = handle_box->priv;
+
+ switch (prop_id)
+ {
+ case PROP_SHADOW_TYPE:
+ g_value_set_enum (value, priv->shadow_type);
+ break;
+ case PROP_HANDLE_POSITION:
+ g_value_set_enum (value, priv->handle_position);
+ break;
+ case PROP_SNAP_EDGE:
+ g_value_set_enum (value,
+ (priv->snap_edge == -1 ?
+ GTK_POS_TOP : priv->snap_edge));
+ break;
+ case PROP_SNAP_EDGE_SET:
+ g_value_set_boolean (value, priv->snap_edge != -1);
+ break;
+ case PROP_CHILD_DETACHED:
+ g_value_set_boolean (value, priv->child_detached);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/**
+ * gtk_handle_box_new:
+ *
+ * Create a new handle box.
+ *
+ * Returns: a new #GtkHandleBox.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ */
+GtkWidget*
+gtk_handle_box_new (void)
+{
+ return g_object_new (GTK_TYPE_HANDLE_BOX, NULL);
+}
+
+static void
+gtk_handle_box_map (GtkWidget *widget)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkBin *bin = GTK_BIN (widget);
+ GtkWidget *child;
+
+ gtk_widget_set_mapped (widget, TRUE);
+
+ child = gtk_bin_get_child (bin);
+ if (child != NULL &&
+ gtk_widget_get_visible (child) &&
+ !gtk_widget_get_mapped (child))
+ gtk_widget_map (child);
+
+ if (priv->child_detached && !priv->float_window_mapped)
+ {
+ gdk_window_show (priv->float_window);
+ priv->float_window_mapped = TRUE;
+ }
+
+ gdk_window_show (priv->bin_window);
+ gdk_window_show (gtk_widget_get_window (widget));
+}
+
+static void
+gtk_handle_box_unmap (GtkWidget *widget)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+
+ gtk_widget_set_mapped (widget, FALSE);
+
+ gdk_window_hide (gtk_widget_get_window (widget));
+ if (priv->float_window_mapped)
+ {
+ gdk_window_hide (priv->float_window);
+ priv->float_window_mapped = FALSE;
+ }
+
+ GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->unmap (widget);
+}
+
+static void
+gtk_handle_box_realize (GtkWidget *widget)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkAllocation allocation;
+ GtkRequisition requisition;
+ GtkStyleContext *context;
+ GtkWidget *child;
+ GdkWindow *window;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ gtk_widget_set_realized (widget, TRUE);
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ attributes.x = allocation.x;
+ attributes.y = allocation.y;
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.event_mask = (gtk_widget_get_events (widget)
+ | GDK_EXPOSURE_MASK);
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
+
+ window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gtk_widget_set_window (widget, window);
+ gdk_window_set_user_data (window, widget);
+
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.event_mask = (gtk_widget_get_events (widget)
+ | GDK_EXPOSURE_MASK
+ | GDK_BUTTON1_MOTION_MASK
+ | GDK_POINTER_MOTION_HINT_MASK
+ | GDK_BUTTON_PRESS_MASK
+ | GDK_BUTTON_RELEASE_MASK);
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
+
+ priv->bin_window = gdk_window_new (window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (priv->bin_window, widget);
+
+ child = gtk_bin_get_child (GTK_BIN (hb));
+ if (child)
+ gtk_widget_set_parent_window (child, priv->bin_window);
+
+ gtk_widget_get_preferred_size (widget, &requisition, NULL);
+
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.width = requisition.width;
+ attributes.height = requisition.height;
+ attributes.window_type = GDK_WINDOW_TOPLEVEL;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.event_mask = (gtk_widget_get_events (widget)
+ | GDK_KEY_PRESS_MASK
+ | GDK_ENTER_NOTIFY_MASK
+ | GDK_LEAVE_NOTIFY_MASK
+ | GDK_FOCUS_CHANGE_MASK
+ | GDK_STRUCTURE_MASK);
+ attributes.type_hint = GDK_WINDOW_TYPE_HINT_TOOLBAR;
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_TYPE_HINT;
+ priv->float_window = gdk_window_new (gtk_widget_get_root_window (widget),
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (priv->float_window, widget);
+ gdk_window_set_decorations (priv->float_window, 0);
+ gdk_window_set_type_hint (priv->float_window, GDK_WINDOW_TYPE_HINT_TOOLBAR);
+
+ context = gtk_widget_get_style_context (widget);
+ gtk_style_context_set_background (context, window);
+ gtk_style_context_set_background (context, priv->bin_window);
+ gtk_style_context_set_background (context, priv->float_window);
+}
+
+static void
+gtk_handle_box_unrealize (GtkWidget *widget)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+
+ gdk_window_set_user_data (priv->bin_window, NULL);
+ gdk_window_destroy (priv->bin_window);
+ priv->bin_window = NULL;
+ gdk_window_set_user_data (priv->float_window, NULL);
+ gdk_window_destroy (priv->float_window);
+ priv->float_window = NULL;
+
+ GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->unrealize (widget);
+}
+
+static void
+gtk_handle_box_style_updated (GtkWidget *widget)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+
+ GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->style_updated (widget);
+
+ if (gtk_widget_get_realized (widget) &&
+ gtk_widget_get_has_window (widget))
+ {
+ GtkStateFlags state;
+ GtkStyleContext *context;
+
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+
+ gtk_style_context_save (context);
+ gtk_style_context_set_state (context, state);
+
+ gtk_style_context_set_background (context, gtk_widget_get_window (widget));
+ gtk_style_context_set_background (context, priv->bin_window);
+ gtk_style_context_set_background (context, priv->float_window);
+
+ gtk_style_context_restore (context);
+ }
+}
+
+static int
+effective_handle_position (GtkHandleBox *hb)
+{
+ GtkHandleBoxPrivate *priv = hb->priv;
+ int handle_position;
+
+ if (gtk_widget_get_direction (GTK_WIDGET (hb)) == GTK_TEXT_DIR_LTR)
+ handle_position = priv->handle_position;
+ else
+ {
+ switch (priv->handle_position)
+ {
+ case GTK_POS_LEFT:
+ handle_position = GTK_POS_RIGHT;
+ break;
+ case GTK_POS_RIGHT:
+ handle_position = GTK_POS_LEFT;
+ break;
+ default:
+ handle_position = priv->handle_position;
+ break;
+ }
+ }
+
+ return handle_position;
+}
+
+static void
+gtk_handle_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ GtkBin *bin = GTK_BIN (widget);
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkRequisition child_requisition;
+ GtkWidget *child;
+ gint handle_position;
+
+ handle_position = effective_handle_position (hb);
+
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ {
+ requisition->width = DRAG_HANDLE_SIZE;
+ requisition->height = 0;
+ }
+ else
+ {
+ requisition->width = 0;
+ requisition->height = DRAG_HANDLE_SIZE;
+ }
+
+ child = gtk_bin_get_child (bin);
+ /* if our child is not visible, we still request its size, since we
+ * won't have any useful hint for our size otherwise.
+ */
+ if (child)
+ {
+ gtk_widget_get_preferred_size (child, &child_requisition, NULL);
+ }
+ else
+ {
+ child_requisition.width = 0;
+ child_requisition.height = 0;
+ }
+
+ if (priv->child_detached)
+ {
+ /* FIXME: This doesn't work currently */
+ if (!priv->shrink_on_detach)
+ {
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ requisition->height += child_requisition.height;
+ else
+ requisition->width += child_requisition.width;
+ }
+ else
+ {
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
+
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
+
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ requisition->height += padding.top;
+ else
+ requisition->width += padding.left;
+ }
+ }
+ else
+ {
+ guint border_width;
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+ requisition->width += border_width * 2;
+ requisition->height += border_width * 2;
+
+ if (child)
+ {
+ requisition->width += child_requisition.width;
+ requisition->height += child_requisition.height;
+ }
+ else
+ {
+ requisition->width += CHILDLESS_SIZE;
+ requisition->height += CHILDLESS_SIZE;
+ }
+ }
+}
+
+static void
+gtk_handle_box_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ GtkRequisition requisition;
+
+ gtk_handle_box_size_request (widget, &requisition);
+
+ *minimum = *natural = requisition.width;
+}
+
+static void
+gtk_handle_box_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ GtkRequisition requisition;
+
+ gtk_handle_box_size_request (widget, &requisition);
+
+ *minimum = *natural = requisition.height;
+}
+
+
+static void
+gtk_handle_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkBin *bin = GTK_BIN (widget);
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkRequisition child_requisition;
+ GtkWidget *child;
+ gint handle_position;
+
+ handle_position = effective_handle_position (hb);
+
+ child = gtk_bin_get_child (bin);
+
+ if (child)
+ {
+ gtk_widget_get_preferred_size (child, &child_requisition, NULL);
+ }
+ else
+ {
+ child_requisition.width = 0;
+ child_requisition.height = 0;
+ }
+
+ gtk_widget_set_allocation (widget, allocation);
+
+ if (gtk_widget_get_realized (widget))
+ gdk_window_move_resize (gtk_widget_get_window (widget),
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
+
+ if (child != NULL && gtk_widget_get_visible (child))
+ {
+ GtkAllocation child_allocation;
+ guint border_width;
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+ child_allocation.x = border_width;
+ child_allocation.y = border_width;
+ if (handle_position == GTK_POS_LEFT)
+ child_allocation.x += DRAG_HANDLE_SIZE;
+ else if (handle_position == GTK_POS_TOP)
+ child_allocation.y += DRAG_HANDLE_SIZE;
+
+ if (priv->child_detached)
+ {
+ guint float_width;
+ guint float_height;
+
+ child_allocation.width = child_requisition.width;
+ child_allocation.height = child_requisition.height;
+
+ float_width = child_allocation.width + 2 * border_width;
+ float_height = child_allocation.height + 2 * border_width;
+
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ float_width += DRAG_HANDLE_SIZE;
+ else
+ float_height += DRAG_HANDLE_SIZE;
+
+ if (gtk_widget_get_realized (widget))
+ {
+ gdk_window_resize (priv->float_window,
+ float_width,
+ float_height);
+ gdk_window_move_resize (priv->bin_window,
+ 0,
+ 0,
+ float_width,
+ float_height);
+ }
+ }
+ else
+ {
+ child_allocation.width = MAX (1, (gint) allocation->width - 2 * border_width);
+ child_allocation.height = MAX (1, (gint) allocation->height - 2 * border_width);
+
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ child_allocation.width -= DRAG_HANDLE_SIZE;
+ else
+ child_allocation.height -= DRAG_HANDLE_SIZE;
+
+ if (gtk_widget_get_realized (widget))
+ gdk_window_move_resize (priv->bin_window,
+ 0,
+ 0,
+ allocation->width,
+ allocation->height);
+ }
+
+ gtk_widget_size_allocate (child, &child_allocation);
+ }
+}
+
+static void
+gtk_handle_box_draw_ghost (GtkHandleBox *hb,
+ cairo_t *cr)
+{
+ GtkWidget *widget = GTK_WIDGET (hb);
+ GtkStateFlags state;
+ GtkStyleContext *context;
+ guint x;
+ guint y;
+ guint width;
+ guint height;
+ gint allocation_width;
+ gint allocation_height;
+ gint handle_position;
+
+ handle_position = effective_handle_position (hb);
+ allocation_width = gtk_widget_get_allocated_width (widget);
+ allocation_height = gtk_widget_get_allocated_height (widget);
+
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ {
+ x = handle_position == GTK_POS_LEFT ? 0 : allocation_width - DRAG_HANDLE_SIZE;
+ y = 0;
+ width = DRAG_HANDLE_SIZE;
+ height = allocation_height;
+ }
+ else
+ {
+ x = 0;
+ y = handle_position == GTK_POS_TOP ? 0 : allocation_height - DRAG_HANDLE_SIZE;
+ width = allocation_width;
+ height = DRAG_HANDLE_SIZE;
+ }
+
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+
+ gtk_style_context_save (context);
+ gtk_style_context_set_state (context, state);
+
+ gtk_render_background (context, cr, x, y, width, height);
+ gtk_render_frame (context, cr, x, y, width, height);
+
+ if (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT)
+ gtk_render_line (context, cr,
+ handle_position == GTK_POS_LEFT ? DRAG_HANDLE_SIZE : 0,
+ allocation_height / 2,
+ handle_position == GTK_POS_LEFT ? allocation_width : allocation_width - DRAG_HANDLE_SIZE,
+ allocation_height / 2);
+ else
+ gtk_render_line (context, cr,
+ allocation_width / 2,
+ handle_position == GTK_POS_TOP ? DRAG_HANDLE_SIZE : 0,
+ allocation_width / 2,
+ handle_position == GTK_POS_TOP ? allocation_height : allocation_height - DRAG_HANDLE_SIZE);
+
+ gtk_style_context_restore (context);
+}
+
+/**
+ * gtk_handle_box_set_shadow_type:
+ * @handle_box: a #GtkHandleBox
+ * @type: the shadow type.
+ *
+ * Sets the type of shadow to be drawn around the border
+ * of the handle box.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ */
+void
+gtk_handle_box_set_shadow_type (GtkHandleBox *handle_box,
+ GtkShadowType type)
+{
+ GtkHandleBoxPrivate *priv;
+
+ g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
+
+ priv = handle_box->priv;
+
+ if ((GtkShadowType) priv->shadow_type != type)
+ {
+ priv->shadow_type = type;
+ g_object_notify (G_OBJECT (handle_box), "shadow-type");
+ gtk_widget_queue_resize (GTK_WIDGET (handle_box));
+ }
+}
+
+/**
+ * gtk_handle_box_get_shadow_type:
+ * @handle_box: a #GtkHandleBox
+ *
+ * Gets the type of shadow drawn around the handle box. See
+ * gtk_handle_box_set_shadow_type().
+ *
+ * Return value: the type of shadow currently drawn around the handle box.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ **/
+GtkShadowType
+gtk_handle_box_get_shadow_type (GtkHandleBox *handle_box)
+{
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), GTK_SHADOW_ETCHED_OUT);
+
+ return handle_box->priv->shadow_type;
+}
+
+/**
+ * gtk_handle_box_set_handle_position:
+ * @handle_box: a #GtkHandleBox
+ * @position: the side of the handlebox where the handle should be drawn.
+ *
+ * Sets the side of the handlebox where the handle is drawn.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ */
+void
+gtk_handle_box_set_handle_position (GtkHandleBox *handle_box,
+ GtkPositionType position)
+{
+ GtkHandleBoxPrivate *priv;
+
+ g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
+
+ priv = handle_box->priv;
+
+ if ((GtkPositionType) priv->handle_position != position)
+ {
+ priv->handle_position = position;
+ g_object_notify (G_OBJECT (handle_box), "handle-position");
+ gtk_widget_queue_resize (GTK_WIDGET (handle_box));
+ }
+}
+
+/**
+ * gtk_handle_box_get_handle_position:
+ * @handle_box: a #GtkHandleBox
+ *
+ * Gets the handle position of the handle box. See
+ * gtk_handle_box_set_handle_position().
+ *
+ * Return value: the current handle position.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ **/
+GtkPositionType
+gtk_handle_box_get_handle_position (GtkHandleBox *handle_box)
+{
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), GTK_POS_LEFT);
+
+ return handle_box->priv->handle_position;
+}
+
+/**
+ * gtk_handle_box_set_snap_edge:
+ * @handle_box: a #GtkHandleBox
+ * @edge: the snap edge, or -1 to unset the value; in which
+ * case GTK+ will try to guess an appropriate value
+ * in the future.
+ *
+ * Sets the snap edge of a handlebox. The snap edge is
+ * the edge of the detached child that must be aligned
+ * with the corresponding edge of the "ghost" left
+ * behind when the child was detached to reattach
+ * the torn-off window. Usually, the snap edge should
+ * be chosen so that it stays in the same place on
+ * the screen when the handlebox is torn off.
+ *
+ * If the snap edge is not set, then an appropriate value
+ * will be guessed from the handle position. If the
+ * handle position is %GTK_POS_RIGHT or %GTK_POS_LEFT,
+ * then the snap edge will be %GTK_POS_TOP, otherwise
+ * it will be %GTK_POS_LEFT.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ */
+void
+gtk_handle_box_set_snap_edge (GtkHandleBox *handle_box,
+ GtkPositionType edge)
+{
+ GtkHandleBoxPrivate *priv;
+
+ g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
+
+ priv = handle_box->priv;
+
+ if (priv->snap_edge != edge)
+ {
+ priv->snap_edge = edge;
+
+ g_object_freeze_notify (G_OBJECT (handle_box));
+ g_object_notify (G_OBJECT (handle_box), "snap-edge");
+ g_object_notify (G_OBJECT (handle_box), "snap-edge-set");
+ g_object_thaw_notify (G_OBJECT (handle_box));
+ }
+}
+
+/**
+ * gtk_handle_box_get_snap_edge:
+ * @handle_box: a #GtkHandleBox
+ *
+ * Gets the edge used for determining reattachment of the handle box.
+ * See gtk_handle_box_set_snap_edge().
+ *
+ * Return value: the edge used for determining reattachment, or
+ * (GtkPositionType)-1 if this is determined (as per default)
+ * from the handle position.
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ **/
+GtkPositionType
+gtk_handle_box_get_snap_edge (GtkHandleBox *handle_box)
+{
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), (GtkPositionType)-1);
+
+ return handle_box->priv->snap_edge;
+}
+
+/**
+ * gtk_handle_box_get_child_detached:
+ * @handle_box: a #GtkHandleBox
+ *
+ * Whether the handlebox's child is currently detached.
+ *
+ * Return value: %TRUE if the child is currently detached, otherwise %FALSE
+ *
+ * Since: 2.14
+ *
+ * Deprecated: 3.4: #GtkHandleBox has been deprecated.
+ **/
+gboolean
+gtk_handle_box_get_child_detached (GtkHandleBox *handle_box)
+{
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), FALSE);
+
+ return handle_box->priv->child_detached;
+}
+
+static void
+gtk_handle_box_paint (GtkWidget *widget,
+ cairo_t *cr)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkBin *bin = GTK_BIN (widget);
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkWidget *child;
+ gint width, height;
+ GdkRectangle rect;
+ gint handle_position;
+
+ handle_position = effective_handle_position (hb);
+
+ width = gdk_window_get_width (priv->bin_window);
+ height = gdk_window_get_height (priv->bin_window);
+
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+
+ gtk_style_context_save (context);
+ gtk_style_context_set_state (context, state);
+
+ gtk_render_background (context, cr, 0, 0, width, height);
+ gtk_render_frame (context, cr, 0, 0, width, height);
+
+ switch (handle_position)
+ {
+ case GTK_POS_LEFT:
+ rect.x = 0;
+ rect.y = 0;
+ rect.width = DRAG_HANDLE_SIZE;
+ rect.height = height;
+ break;
+ case GTK_POS_RIGHT:
+ rect.x = width - DRAG_HANDLE_SIZE;
+ rect.y = 0;
+ rect.width = DRAG_HANDLE_SIZE;
+ rect.height = height;
+ break;
+ case GTK_POS_TOP:
+ rect.x = 0;
+ rect.y = 0;
+ rect.width = width;
+ rect.height = DRAG_HANDLE_SIZE;
+ break;
+ case GTK_POS_BOTTOM:
+ rect.x = 0;
+ rect.y = height - DRAG_HANDLE_SIZE;
+ rect.width = width;
+ rect.height = DRAG_HANDLE_SIZE;
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+
+ gtk_render_handle (context, cr,
+ rect.x, rect.y, rect.width, rect.height);
+
+ child = gtk_bin_get_child (bin);
+ if (child != NULL && gtk_widget_get_visible (child))
+ GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->draw (widget, cr);
+
+ gtk_style_context_restore (context);
+}
+
+static gboolean
+gtk_handle_box_draw (GtkWidget *widget,
+ cairo_t *cr)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+
+ if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)))
+ {
+ if (priv->child_detached)
+ gtk_handle_box_draw_ghost (hb, cr);
+ }
+ else if (gtk_cairo_should_draw_window (cr, priv->bin_window))
+ gtk_handle_box_paint (widget, cr);
+
+ return FALSE;
+}
+
+static GtkWidget *
+gtk_handle_box_get_invisible (void)
+{
+ static GtkWidget *handle_box_invisible = NULL;
+
+ if (!handle_box_invisible)
+ {
+ handle_box_invisible = gtk_invisible_new ();
+ gtk_widget_show (handle_box_invisible);
+ }
+
+ return handle_box_invisible;
+}
+
+static gboolean
+gtk_handle_box_grab_event (GtkWidget *widget,
+ GdkEvent *event,
+ GtkHandleBox *hb)
+{
+ GtkHandleBoxPrivate *priv = hb->priv;
+
+ switch (event->type)
+ {
+ case GDK_BUTTON_RELEASE:
+ if (priv->in_drag) /* sanity check */
+ {
+ gtk_handle_box_end_drag (hb, event->button.time);
+ return TRUE;
+ }
+ break;
+
+ case GDK_MOTION_NOTIFY:
+ return gtk_handle_box_motion (GTK_WIDGET (hb), (GdkEventMotion *)event);
+ break;
+
+ default:
+ break;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+gtk_handle_box_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ gboolean event_handled;
+ GdkCursor *fleur;
+ gint handle_position;
+
+ handle_position = effective_handle_position (hb);
+
+ event_handled = FALSE;
+ if ((event->button == 1) &&
+ (event->type == GDK_BUTTON_PRESS || event->type == GDK_2BUTTON_PRESS))
+ {
+ GtkWidget *child;
+ gboolean in_handle;
+
+ if (event->window != priv->bin_window)
+ return FALSE;
+
+ child = gtk_bin_get_child (GTK_BIN (hb));
+
+ if (child)
+ {
+ GtkAllocation child_allocation;
+ guint border_width;
+
+ gtk_widget_get_allocation (child, &child_allocation);
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (hb));
+
+ switch (handle_position)
+ {
+ case GTK_POS_LEFT:
+ in_handle = event->x < DRAG_HANDLE_SIZE;
+ break;
+ case GTK_POS_TOP:
+ in_handle = event->y < DRAG_HANDLE_SIZE;
+ break;
+ case GTK_POS_RIGHT:
+ in_handle = event->x > 2 * border_width + child_allocation.width;
+ break;
+ case GTK_POS_BOTTOM:
+ in_handle = event->y > 2 * border_width + child_allocation.height;
+ break;
+ default:
+ in_handle = FALSE;
+ break;
+ }
+ }
+ else
+ {
+ in_handle = FALSE;
+ event_handled = TRUE;
+ }
+
+ if (in_handle)
+ {
+ if (event->type == GDK_BUTTON_PRESS) /* Start a drag */
+ {
+ GtkWidget *invisible = gtk_handle_box_get_invisible ();
+ GdkWindow *window;
+ gint root_x, root_y;
+
+ gtk_invisible_set_screen (GTK_INVISIBLE (invisible),
+ gtk_widget_get_screen (GTK_WIDGET (hb)));
+ gdk_window_get_origin (priv->bin_window, &root_x, &root_y);
+
+ priv->orig_x = event->x_root;
+ priv->orig_y = event->y_root;
+
+ priv->float_allocation.x = root_x - event->x_root;
+ priv->float_allocation.y = root_y - event->y_root;
+ priv->float_allocation.width = gdk_window_get_width (priv->bin_window);
+ priv->float_allocation.height = gdk_window_get_height (priv->bin_window);
+
+ window = gtk_widget_get_window (widget);
+ if (gdk_window_is_viewable (window))
+ {
+ gdk_window_get_origin (window, &root_x, &root_y);
+
+ priv->attach_allocation.x = root_x;
+ priv->attach_allocation.y = root_y;
+ priv->attach_allocation.width = gdk_window_get_width (window);
+ priv->attach_allocation.height = gdk_window_get_height (window);
+ }
+ else
+ {
+ priv->attach_allocation.x = -1;
+ priv->attach_allocation.y = -1;
+ priv->attach_allocation.width = 0;
+ priv->attach_allocation.height = 0;
+ }
+ priv->in_drag = TRUE;
+ priv->grab_device = event->device;
+ fleur = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
+ GDK_FLEUR);
+ if (gdk_device_grab (event->device,
+ gtk_widget_get_window (invisible),
+ GDK_OWNERSHIP_WINDOW,
+ FALSE,
+ (GDK_BUTTON1_MOTION_MASK |
+ GDK_POINTER_MOTION_HINT_MASK |
+ GDK_BUTTON_RELEASE_MASK),
+ fleur,
+ event->time) != GDK_GRAB_SUCCESS)
+ {
+ priv->in_drag = FALSE;
+ priv->grab_device = NULL;
+ }
+ else
+ {
+ gtk_device_grab_add (invisible, priv->grab_device, TRUE);
+ g_signal_connect (invisible, "event",
+ G_CALLBACK (gtk_handle_box_grab_event), hb);
+ }
+
+ g_object_unref (fleur);
+ event_handled = TRUE;
+ }
+ else if (priv->child_detached) /* Double click */
+ {
+ gtk_handle_box_reattach (hb);
+ }
+ }
+ }
+
+ return event_handled;
+}
+
+static gboolean
+gtk_handle_box_motion (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkWidget *child;
+ gint new_x, new_y;
+ gint snap_edge;
+ gboolean is_snapped = FALSE;
+ gint handle_position;
+ GdkGeometry geometry;
+ GdkScreen *screen, *pointer_screen;
+
+ if (!priv->in_drag)
+ return FALSE;
+ handle_position = effective_handle_position (hb);
+
+ /* Calculate the attachment point on the float, if the float
+ * were detached
+ */
+ new_x = 0;
+ new_y = 0;
+ screen = gtk_widget_get_screen (widget);
+ gdk_device_get_position (event->device,
+ &pointer_screen,
+ &new_x, &new_y);
+ if (pointer_screen != screen)
+ {
+ new_x = priv->orig_x;
+ new_y = priv->orig_y;
+ }
+
+ new_x += priv->float_allocation.x;
+ new_y += priv->float_allocation.y;
+
+ snap_edge = priv->snap_edge;
+ if (snap_edge == -1)
+ snap_edge = (handle_position == GTK_POS_LEFT ||
+ handle_position == GTK_POS_RIGHT) ?
+ GTK_POS_TOP : GTK_POS_LEFT;
+
+ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
+ switch (snap_edge)
+ {
+ case GTK_POS_LEFT:
+ snap_edge = GTK_POS_RIGHT;
+ break;
+ case GTK_POS_RIGHT:
+ snap_edge = GTK_POS_LEFT;
+ break;
+ default:
+ break;
+ }
+
+ /* First, check if the snapped edge is aligned
+ */
+ switch (snap_edge)
+ {
+ case GTK_POS_TOP:
+ is_snapped = abs (priv->attach_allocation.y - new_y) < TOLERANCE;
+ break;
+ case GTK_POS_BOTTOM:
+ is_snapped = abs (priv->attach_allocation.y + (gint)priv->attach_allocation.height -
+ new_y - (gint)priv->float_allocation.height) < TOLERANCE;
+ break;
+ case GTK_POS_LEFT:
+ is_snapped = abs (priv->attach_allocation.x - new_x) < TOLERANCE;
+ break;
+ case GTK_POS_RIGHT:
+ is_snapped = abs (priv->attach_allocation.x + (gint)priv->attach_allocation.width -
+ new_x - (gint)priv->float_allocation.width) < TOLERANCE;
+ break;
+ }
+
+ /* Next, check if coordinates in the other direction are sufficiently
+ * aligned
+ */
+ if (is_snapped)
+ {
+ gint float_pos1 = 0; /* Initialize to suppress warnings */
+ gint float_pos2 = 0;
+ gint attach_pos1 = 0;
+ gint attach_pos2 = 0;
+
+ switch (snap_edge)
+ {
+ case GTK_POS_TOP:
+ case GTK_POS_BOTTOM:
+ attach_pos1 = priv->attach_allocation.x;
+ attach_pos2 = priv->attach_allocation.x + priv->attach_allocation.width;
+ float_pos1 = new_x;
+ float_pos2 = new_x + priv->float_allocation.width;
+ break;
+ case GTK_POS_LEFT:
+ case GTK_POS_RIGHT:
+ attach_pos1 = priv->attach_allocation.y;
+ attach_pos2 = priv->attach_allocation.y + priv->attach_allocation.height;
+ float_pos1 = new_y;
+ float_pos2 = new_y + priv->float_allocation.height;
+ break;
+ }
+
+ is_snapped = ((attach_pos1 - TOLERANCE < float_pos1) &&
+ (attach_pos2 + TOLERANCE > float_pos2)) ||
+ ((float_pos1 - TOLERANCE < attach_pos1) &&
+ (float_pos2 + TOLERANCE > attach_pos2));
+ }
+
+ child = gtk_bin_get_child (GTK_BIN (hb));
+
+ if (is_snapped)
+ {
+ if (priv->child_detached)
+ {
+ priv->child_detached = FALSE;
+ gdk_window_hide (priv->float_window);
+ gdk_window_reparent (priv->bin_window, gtk_widget_get_window (widget), 0, 0);
+ priv->float_window_mapped = FALSE;
+ g_signal_emit (hb,
+ handle_box_signals[SIGNAL_CHILD_ATTACHED],
+ 0,
+ child);
+
+ gtk_widget_queue_resize (widget);
+ }
+ }
+ else
+ {
+ gint width, height;
+
+ width = gdk_window_get_width (priv->float_window);
+ height = gdk_window_get_height (priv->float_window);
+
+ switch (handle_position)
+ {
+ case GTK_POS_LEFT:
+ new_y += ((gint)priv->float_allocation.height - height) / 2;
+ break;
+ case GTK_POS_RIGHT:
+ new_x += (gint)priv->float_allocation.width - width;
+ new_y += ((gint)priv->float_allocation.height - height) / 2;
+ break;
+ case GTK_POS_TOP:
+ new_x += ((gint)priv->float_allocation.width - width) / 2;
+ break;
+ case GTK_POS_BOTTOM:
+ new_x += ((gint)priv->float_allocation.width - width) / 2;
+ new_y += (gint)priv->float_allocation.height - height;
+ break;
+ }
+
+ if (priv->child_detached)
+ {
+ gdk_window_move (priv->float_window, new_x, new_y);
+ gdk_window_raise (priv->float_window);
+ }
+ else
+ {
+ guint border_width;
+ GtkRequisition child_requisition;
+
+ priv->child_detached = TRUE;
+
+ if (child)
+ {
+ gtk_widget_get_preferred_size (child, &child_requisition, NULL);
+ }
+ else
+ {
+ child_requisition.width = 0;
+ child_requisition.height = 0;
+ }
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (hb));
+ width = child_requisition.width + 2 * border_width;
+ height = child_requisition.height + 2 * border_width;
+
+ if (handle_position == GTK_POS_LEFT || handle_position == GTK_POS_RIGHT)
+ width += DRAG_HANDLE_SIZE;
+ else
+ height += DRAG_HANDLE_SIZE;
+
+ gdk_window_move_resize (priv->float_window, new_x, new_y, width, height);
+ gdk_window_reparent (priv->bin_window, priv->float_window, 0, 0);
+ gdk_window_set_geometry_hints (priv->float_window, &geometry, GDK_HINT_POS);
+ gdk_window_show (priv->float_window);
+ priv->float_window_mapped = TRUE;
+#if 0
+ /* this extra move is necessary if we use decorations, or our
+ * window manager insists on decorations.
+ */
+ gdk_display_sync (gtk_widget_get_display (widget));
+ gdk_window_move (priv->float_window, new_x, new_y);
+ gdk_display_sync (gtk_widget_get_display (widget));
+#endif /* 0 */
+ g_signal_emit (hb,
+ handle_box_signals[SIGNAL_CHILD_DETACHED],
+ 0,
+ child);
+
+ gtk_widget_queue_resize (widget);
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+gtk_handle_box_add (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GtkHandleBoxPrivate *priv = GTK_HANDLE_BOX (container)->priv;
+
+ gtk_widget_set_parent_window (widget, priv->bin_window);
+ GTK_CONTAINER_CLASS (gtk_handle_box_parent_class)->add (container, widget);
+}
+
+static void
+gtk_handle_box_remove (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GTK_CONTAINER_CLASS (gtk_handle_box_parent_class)->remove (container, widget);
+
+ gtk_handle_box_reattach (GTK_HANDLE_BOX (container));
+}
+
+static gint
+gtk_handle_box_delete_event (GtkWidget *widget,
+ GdkEventAny *event)
+{
+ GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
+ GtkHandleBoxPrivate *priv = hb->priv;
+
+ if (event->window == priv->float_window)
+ {
+ gtk_handle_box_reattach (hb);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+gtk_handle_box_reattach (GtkHandleBox *hb)
+{
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkWidget *child;
+ GtkWidget *widget = GTK_WIDGET (hb);
+
+ if (priv->child_detached)
+ {
+ priv->child_detached = FALSE;
+ if (gtk_widget_get_realized (widget))
+ {
+ gdk_window_hide (priv->float_window);
+ gdk_window_reparent (priv->bin_window, gtk_widget_get_window (widget),
+ 0, 0);
+
+ child = gtk_bin_get_child (GTK_BIN (hb));
+ if (child)
+ g_signal_emit (hb,
+ handle_box_signals[SIGNAL_CHILD_ATTACHED],
+ 0,
+ child);
+
+ }
+ priv->float_window_mapped = FALSE;
+ }
+ if (priv->in_drag)
+ gtk_handle_box_end_drag (hb, GDK_CURRENT_TIME);
+
+ gtk_widget_queue_resize (GTK_WIDGET (hb));
+}
+
+static void
+gtk_handle_box_end_drag (GtkHandleBox *hb,
+ guint32 time)
+{
+ GtkHandleBoxPrivate *priv = hb->priv;
+ GtkWidget *invisible = gtk_handle_box_get_invisible ();
+
+ priv->in_drag = FALSE;
+
+ gtk_device_grab_remove (invisible, priv->grab_device);
+ gdk_device_ungrab (priv->grab_device, time);
+ g_signal_handlers_disconnect_by_func (invisible,
+ G_CALLBACK (gtk_handle_box_grab_event),
+ hb);
+
+ priv->grab_device = NULL;
+}