/* 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 Library General Public
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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 "gtksignal.h"
+
+/*
+ * Modified by the GTK+ Team and others 1997-1999. 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 <stdlib.h>
#include "gtkhandlebox.h"
+#include "gtkmain.h"
+#include "gtksignal.h"
+#include "gtkwindow.h"
+
+enum {
+ ARG_0,
+ ARG_SHADOW,
+ ARG_HANDLE_POSITION,
+ ARG_SNAP_EDGE
+};
+
+#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_class_init (GtkHandleBoxClass *klass);
+static void gtk_handle_box_init (GtkHandleBox *handle_box);
+static void gtk_handle_box_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_handle_box_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id);
+static void gtk_handle_box_destroy (GtkObject *object);
+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_set (GtkWidget *widget,
+ GtkStyle *previous_style);
+static void gtk_handle_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+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 void gtk_handle_box_draw_ghost (GtkHandleBox *hb);
+static void gtk_handle_box_paint (GtkWidget *widget,
+ GdkEventExpose *event,
+ GdkRectangle *area);
+static void gtk_handle_box_draw (GtkWidget *widget,
+ GdkRectangle *area);
+static gint gtk_handle_box_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+static gint gtk_handle_box_button_changed (GtkWidget *widget,
+ GdkEventButton *event);
+static gint gtk_handle_box_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+static gint gtk_handle_box_delete_event (GtkWidget *widget,
+ GdkEventAny *event);
+static void gtk_handle_box_reattach (GtkHandleBox *hb);
-static void gtk_handle_box_class_init (GtkHandleBoxClass *klass);
-static void gtk_handle_box_init (GtkHandleBox *event_box);
-static void gtk_handle_box_realize (GtkWidget *widget);
-static void gtk_handle_box_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void gtk_handle_box_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_handle_box_draw (GtkWidget *widget,
- GdkRectangle *area);
-static gint gtk_handle_box_expose (GtkWidget *widget,
- GdkEventExpose *event);
+static GtkBinClass *parent_class;
+static guint handle_box_signals[SIGNAL_LAST] = { 0 };
-guint
-gtk_handle_box_get_type ()
+
+GtkType
+gtk_handle_box_get_type (void)
{
- static guint event_box_type = 0;
+ static GtkType handle_box_type = 0;
- if (!event_box_type)
+ if (!handle_box_type)
{
- GtkTypeInfo handle_box_info =
+ static const GtkTypeInfo handle_box_info =
{
"GtkHandleBox",
sizeof (GtkHandleBox),
sizeof (GtkHandleBoxClass),
(GtkClassInitFunc) gtk_handle_box_class_init,
(GtkObjectInitFunc) gtk_handle_box_init,
- (GtkArgFunc) NULL,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
+ (GtkClassInitFunc) NULL,
};
- event_box_type = gtk_type_unique (gtk_event_box_get_type (), &handle_box_info);
+ handle_box_type = gtk_type_unique (GTK_TYPE_BIN, &handle_box_info);
}
- return event_box_type;
+ return handle_box_type;
}
static void
gtk_handle_box_class_init (GtkHandleBoxClass *class)
{
+ GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
+ GtkContainerClass *container_class;
+
+ object_class = (GtkObjectClass *) class;
+ widget_class = (GtkWidgetClass *) class;
+ container_class = (GtkContainerClass *) class;
- widget_class = (GtkWidgetClass*) class;
+ parent_class = gtk_type_class (GTK_TYPE_BIN);
+
+ gtk_object_add_arg_type ("GtkHandleBox::shadow", GTK_TYPE_SHADOW_TYPE, GTK_ARG_READWRITE, ARG_SHADOW);
+ gtk_object_add_arg_type ("GtkHandleBox::handle_position", GTK_TYPE_POSITION_TYPE, GTK_ARG_READWRITE, ARG_HANDLE_POSITION);
+ gtk_object_add_arg_type ("GtkHandleBox::snap_edge", GTK_TYPE_POSITION_TYPE, GTK_ARG_READWRITE, ARG_SNAP_EDGE);
+ object_class->set_arg = gtk_handle_box_set_arg;
+ object_class->get_arg = gtk_handle_box_get_arg;
+
+ handle_box_signals[SIGNAL_CHILD_ATTACHED] =
+ gtk_signal_new ("child_attached",
+ GTK_RUN_FIRST,
+ GTK_CLASS_TYPE (object_class),
+ GTK_SIGNAL_OFFSET (GtkHandleBoxClass, child_attached),
+ gtk_marshal_NONE__POINTER,
+ GTK_TYPE_NONE, 1,
+ GTK_TYPE_WIDGET);
+ handle_box_signals[SIGNAL_CHILD_DETACHED] =
+ gtk_signal_new ("child_detached",
+ GTK_RUN_FIRST,
+ GTK_CLASS_TYPE (object_class),
+ GTK_SIGNAL_OFFSET (GtkHandleBoxClass, child_detached),
+ gtk_marshal_NONE__POINTER,
+ GTK_TYPE_NONE, 1,
+ GTK_TYPE_WIDGET);
+ gtk_object_class_add_signals (object_class, handle_box_signals, SIGNAL_LAST);
+
+ object_class->destroy = gtk_handle_box_destroy;
+
+ 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_set = gtk_handle_box_style_set;
widget_class->size_request = gtk_handle_box_size_request;
widget_class->size_allocate = gtk_handle_box_size_allocate;
widget_class->draw = gtk_handle_box_draw;
widget_class->expose_event = gtk_handle_box_expose;
+ widget_class->button_press_event = gtk_handle_box_button_changed;
+ widget_class->button_release_event = gtk_handle_box_button_changed;
+ widget_class->motion_notify_event = gtk_handle_box_motion;
+ 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;
+}
+
+static void
+gtk_handle_box_init (GtkHandleBox *handle_box)
+{
+ GTK_WIDGET_UNSET_FLAGS (handle_box, GTK_NO_WINDOW);
+
+ handle_box->bin_window = NULL;
+ handle_box->float_window = NULL;
+ handle_box->shadow_type = GTK_SHADOW_OUT;
+ handle_box->handle_position = GTK_POS_LEFT;
+ handle_box->float_window_mapped = FALSE;
+ handle_box->child_detached = FALSE;
+ handle_box->in_drag = FALSE;
+ handle_box->shrink_on_detach = TRUE;
+ handle_box->snap_edge = -1;
}
static void
-gtk_handle_box_init (GtkHandleBox *event_box)
+gtk_handle_box_set_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id)
{
- GTK_WIDGET_UNSET_FLAGS (event_box, GTK_NO_WINDOW);
- GTK_WIDGET_SET_FLAGS (event_box, GTK_BASIC);
- event_box->show_handle = TRUE;
- event_box->real_parent = NULL;
+ GtkHandleBox *handle_box = GTK_HANDLE_BOX (object);
+
+ switch (arg_id)
+ {
+ case ARG_SHADOW:
+ gtk_handle_box_set_shadow_type (handle_box, GTK_VALUE_ENUM (*arg));
+ break;
+ case ARG_HANDLE_POSITION:
+ gtk_handle_box_set_handle_position (handle_box, GTK_VALUE_ENUM (*arg));
+ break;
+ case ARG_SNAP_EDGE:
+ gtk_handle_box_set_snap_edge (handle_box, GTK_VALUE_ENUM (*arg));
+ break;
+ }
}
+static void
+gtk_handle_box_get_arg (GtkObject *object,
+ GtkArg *arg,
+ guint arg_id)
+{
+ GtkHandleBox *handle_box = GTK_HANDLE_BOX (object);
+
+ switch (arg_id)
+ {
+ case ARG_SHADOW:
+ GTK_VALUE_ENUM (*arg) = handle_box->shadow_type;
+ break;
+ case ARG_HANDLE_POSITION:
+ GTK_VALUE_ENUM (*arg) = handle_box->handle_position;
+ break;
+ case ARG_SNAP_EDGE:
+ GTK_VALUE_ENUM (*arg) = handle_box->snap_edge;
+ break;
+ default:
+ arg->type = GTK_TYPE_INVALID;
+ break;
+ }
+}
+
GtkWidget*
-gtk_handle_box_new ()
+gtk_handle_box_new (void)
{
- return GTK_WIDGET ( gtk_type_new (gtk_handle_box_get_type ()));
+ return GTK_WIDGET (gtk_type_new (gtk_handle_box_get_type ()));
+}
+
+static void
+gtk_handle_box_destroy (GtkObject *object)
+{
+ GtkHandleBox *hb;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (object));
+
+ hb = GTK_HANDLE_BOX (object);
+
+ if (GTK_OBJECT_CLASS (parent_class)->destroy)
+ (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+static void
+gtk_handle_box_map (GtkWidget *widget)
+{
+ GtkBin *bin;
+ GtkHandleBox *hb;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+
+ bin = GTK_BIN (widget);
+ hb = GTK_HANDLE_BOX (widget);
+
+ if (bin->child &&
+ GTK_WIDGET_VISIBLE (bin->child) &&
+ !GTK_WIDGET_MAPPED (bin->child))
+ gtk_widget_map (bin->child);
+
+ if (hb->child_detached && !hb->float_window_mapped)
+ {
+ gdk_window_show (hb->float_window);
+ hb->float_window_mapped = TRUE;
+ }
+
+ gdk_window_show (hb->bin_window);
+ gdk_window_show (widget->window);
+}
+
+static void
+gtk_handle_box_unmap (GtkWidget *widget)
+{
+ GtkHandleBox *hb;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
+
+ GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+
+ hb = GTK_HANDLE_BOX (widget);
+
+ gdk_window_hide (widget->window);
+ if (hb->float_window_mapped)
+ {
+ gdk_window_hide (hb->float_window);
+ hb->float_window_mapped = FALSE;
+ }
}
static void
{
GdkWindowAttr attributes;
gint attributes_mask;
+ GtkHandleBox *hb;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
+ hb = GTK_HANDLE_BOX (widget);
+
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.x = widget->allocation.x;
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_BUTTON_MOTION_MASK
- | GDK_BUTTON_PRESS_MASK
- | GDK_BUTTON_RELEASE_MASK
- | GDK_EXPOSURE_MASK
- | GDK_ENTER_NOTIFY_MASK
- | GDK_LEAVE_NOTIFY_MASK;
-
+ 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 (widget->parent->window, &attributes, attributes_mask);
+ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->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 | GDK_WA_COLORMAP;
+ hb->bin_window = gdk_window_new (widget->window, &attributes, attributes_mask);
+ gdk_window_set_user_data (hb->bin_window, widget);
+ if (GTK_BIN (hb)->child)
+ gtk_widget_set_parent_window (GTK_BIN (hb)->child, hb->bin_window);
+
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.width = widget->requisition.width;
+ attributes.height = widget->requisition.height;
+ attributes.window_type = GDK_WINDOW_TOPLEVEL;
+ 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_KEY_PRESS_MASK |
+ GDK_ENTER_NOTIFY_MASK |
+ GDK_LEAVE_NOTIFY_MASK |
+ GDK_FOCUS_CHANGE_MASK |
+ GDK_STRUCTURE_MASK);
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ hb->float_window = gdk_window_new (NULL, &attributes, attributes_mask);
+ gdk_window_set_user_data (hb->float_window, widget);
+ gdk_window_set_decorations (hb->float_window, 0);
+
widget->style = gtk_style_attach (widget->style, widget->window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, widget->window, GTK_WIDGET_STATE (hb));
+ gtk_style_set_background (widget->style, hb->bin_window, GTK_WIDGET_STATE (hb));
+ gtk_style_set_background (widget->style, hb->float_window, GTK_WIDGET_STATE (hb));
+ gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
+}
+
+static void
+gtk_handle_box_unrealize (GtkWidget *widget)
+{
+ GtkHandleBox *hb;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
+
+ hb = GTK_HANDLE_BOX (widget);
+
+ gdk_window_set_user_data (hb->bin_window, NULL);
+ gdk_window_destroy (hb->bin_window);
+ hb->bin_window = NULL;
+ gdk_window_set_user_data (hb->float_window, NULL);
+ gdk_window_destroy (hb->float_window);
+ hb->float_window = NULL;
+
+ if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+}
+
+static void
+gtk_handle_box_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ GtkHandleBox *hb;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
+
+ hb = GTK_HANDLE_BOX (widget);
+
+ if (GTK_WIDGET_REALIZED (widget) &&
+ !GTK_WIDGET_NO_WINDOW (widget))
+ {
+ gtk_style_set_background (widget->style, widget->window,
+widget->state);
+ gtk_style_set_background (widget->style, hb->bin_window, widget->state);
+ gtk_style_set_background (widget->style, hb->float_window, widget->state);
+ }
}
static void
gtk_handle_box_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
+ GtkRequisition *requisition)
{
GtkBin *bin;
+ GtkHandleBox *hb;
+ GtkRequisition child_requisition;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
g_return_if_fail (requisition != NULL);
bin = GTK_BIN (widget);
+ hb = GTK_HANDLE_BOX (widget);
- requisition->width = GTK_CONTAINER (widget)->border_width * 2;
- requisition->height = GTK_CONTAINER (widget)->border_width * 2;
+ if (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ {
+ requisition->width = DRAG_HANDLE_SIZE;
+ requisition->height = 0;
+ }
+ else
+ {
+ requisition->width = 0;
+ requisition->height = DRAG_HANDLE_SIZE;
+ }
- if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
+ /* if our child is not visible, we still request its size, since we
+ * won't have any usefull hint for our size otherwise.
+ */
+ if (bin->child)
+ gtk_widget_size_request (bin->child, &child_requisition);
+ else
{
- gtk_widget_size_request (bin->child, &bin->child->requisition);
+ child_requisition.width = 0;
+ child_requisition.height = 0;
+ }
- requisition->width += bin->child->requisition.width;
- requisition->height += bin->child->requisition.height;
+ if (hb->child_detached)
+ {
+ /* FIXME: This doesn't work currently */
+ if (!hb->shrink_on_detach)
+ {
+ if (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ requisition->height += child_requisition.height;
+ else
+ requisition->width += child_requisition.width;
+ }
+ else
+ {
+ if (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ requisition->height += widget->style->klass->ythickness;
+ else
+ requisition->width += widget->style->klass->xthickness;
+ }
+ }
+ else
+ {
+ requisition->width += GTK_CONTAINER (widget)->border_width * 2;
+ requisition->height += GTK_CONTAINER (widget)->border_width * 2;
+
+ if (bin->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_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
+ GtkAllocation *allocation)
{
GtkBin *bin;
- GtkAllocation child_allocation;
-
+ GtkHandleBox *hb;
+ GtkRequisition child_requisition;
+
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
g_return_if_fail (allocation != NULL);
-
- widget->allocation = *allocation;
+
bin = GTK_BIN (widget);
+ hb = GTK_HANDLE_BOX (widget);
+
+ if (bin->child)
+ gtk_widget_get_child_requisition (bin->child, &child_requisition);
+ else
+ {
+ child_requisition.width = 0;
+ child_requisition.height = 0;
+ }
+
+ widget->allocation = *allocation;
+
+ if (GTK_WIDGET_REALIZED (hb))
+ gdk_window_move_resize (widget->window,
+ widget->allocation.x,
+ widget->allocation.y,
+ widget->allocation.width,
+ widget->allocation.height);
+
- child_allocation.x = 0;
- child_allocation.y = 0;
- child_allocation.width = allocation->width - GTK_CONTAINER (widget)->border_width * 2;
- child_allocation.height = allocation->height - GTK_CONTAINER (widget)->border_width * 2;
+ if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
+ {
+ GtkWidget *child;
+ GtkAllocation child_allocation;
+ guint border_width;
- if (GTK_WIDGET_REALIZED (widget))
+ child = bin->child;
+ border_width = GTK_CONTAINER (widget)->border_width;
+
+ child_allocation.x = border_width;
+ child_allocation.y = border_width;
+ if (hb->handle_position == GTK_POS_LEFT)
+ child_allocation.x += DRAG_HANDLE_SIZE;
+ else if (hb->handle_position == GTK_POS_TOP)
+ child_allocation.y += DRAG_HANDLE_SIZE;
+
+ if (hb->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 (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ float_width += DRAG_HANDLE_SIZE;
+ else
+ float_height += DRAG_HANDLE_SIZE;
+
+ if (GTK_WIDGET_REALIZED (hb))
+ {
+ gdk_window_resize (hb->float_window,
+ float_width,
+ float_height);
+ gdk_window_move_resize (hb->bin_window,
+ 0,
+ 0,
+ float_width,
+ float_height);
+ }
+ }
+ else
+ {
+ child_allocation.width = MAX (1, (gint)widget->allocation.width - 2 * border_width);
+ child_allocation.height = MAX (1, (gint)widget->allocation.height - 2 * border_width);
+
+ if (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ child_allocation.width -= DRAG_HANDLE_SIZE;
+ else
+ child_allocation.height -= DRAG_HANDLE_SIZE;
+
+ if (GTK_WIDGET_REALIZED (hb))
+ gdk_window_move_resize (hb->bin_window,
+ 0,
+ 0,
+ widget->allocation.width,
+ widget->allocation.height);
+ }
+
+ gtk_widget_size_allocate (bin->child, &child_allocation);
+ }
+}
+
+static void
+gtk_handle_box_draw_ghost (GtkHandleBox *hb)
+{
+ GtkWidget *widget;
+ guint x;
+ guint y;
+ guint width;
+ guint height;
+
+ widget = GTK_WIDGET (hb);
+
+ if (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ {
+ x = hb->handle_position == GTK_POS_LEFT ? 0 : widget->allocation.width - DRAG_HANDLE_SIZE;
+ y = 0;
+ width = DRAG_HANDLE_SIZE;
+ height = widget->allocation.height;
+ }
+ else
{
- gdk_window_move_resize (widget->window,
- allocation->x + GTK_CONTAINER (widget)->border_width,
- allocation->y + GTK_CONTAINER (widget)->border_width,
- child_allocation.width,
- child_allocation.height);
+ x = 0;
+ y = hb->handle_position == GTK_POS_TOP ? 0 : widget->allocation.height - DRAG_HANDLE_SIZE;
+ width = widget->allocation.width;
+ height = DRAG_HANDLE_SIZE;
}
+ gtk_paint_shadow (widget->style,
+ widget->window,
+ GTK_WIDGET_STATE (widget),
+ GTK_SHADOW_ETCHED_IN,
+ NULL, widget, "handle",
+ x,
+ y,
+ width,
+ height);
+ if (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT)
+ gtk_paint_hline (widget->style,
+ widget->window,
+ GTK_WIDGET_STATE (widget),
+ NULL, widget, "handlebox",
+ hb->handle_position == GTK_POS_LEFT ? DRAG_HANDLE_SIZE : 0,
+ hb->handle_position == GTK_POS_LEFT ? widget->allocation.width : widget->allocation.width - DRAG_HANDLE_SIZE,
+ widget->allocation.height / 2);
+ else
+ gtk_paint_vline (widget->style,
+ widget->window,
+ GTK_WIDGET_STATE (widget),
+ NULL, widget, "handlebox",
+ hb->handle_position == GTK_POS_TOP ? DRAG_HANDLE_SIZE : 0,
+ hb->handle_position == GTK_POS_TOP ? widget->allocation.height : widget->allocation.height - DRAG_HANDLE_SIZE,
+ widget->allocation.width / 2);
+}
+
+static void
+draw_textured_frame (GtkWidget *widget, GdkWindow *window, GdkRectangle *rect, GtkShadowType shadow,
+ GdkRectangle *clip)
+{
+ gtk_paint_handle(widget->style, window, GTK_STATE_NORMAL, shadow,
+ clip, widget, "handlebox",
+ rect->x, rect->y, rect->width, rect->height,
+ GTK_ORIENTATION_VERTICAL);
+}
+
+void
+gtk_handle_box_set_shadow_type (GtkHandleBox *handle_box,
+ GtkShadowType type)
+{
+ g_return_if_fail (handle_box != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
+
+ if ((GtkShadowType) handle_box->shadow_type != type)
+ {
+ handle_box->shadow_type = type;
+ gtk_widget_queue_resize (GTK_WIDGET (handle_box));
+ }
+}
+
+void
+gtk_handle_box_set_handle_position (GtkHandleBox *handle_box,
+ GtkPositionType position)
+{
+ if ((GtkPositionType) handle_box->handle_position != position)
+ {
+ handle_box->handle_position = position;
+ gtk_widget_queue_resize (GTK_WIDGET (handle_box));
+ }
+}
+
+void
+gtk_handle_box_set_snap_edge (GtkHandleBox *handle_box,
+ GtkPositionType edge)
+{
+ g_return_if_fail (handle_box != NULL);
+ g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
+
+ handle_box->snap_edge = edge;
+}
+
+static void
+gtk_handle_box_paint (GtkWidget *widget,
+ GdkEventExpose *event,
+ GdkRectangle *area)
+{
+ GtkBin *bin;
+ GtkHandleBox *hb;
+ guint width;
+ guint height;
+ GdkRectangle rect;
+ GdkRectangle dest;
+
+ bin = GTK_BIN (widget);
+ hb = GTK_HANDLE_BOX (widget);
+
+ gdk_window_get_size (hb->bin_window, &width, &height);
+ if (!event)
+ gtk_paint_box(widget->style,
+ hb->bin_window,
+ GTK_WIDGET_STATE (widget),
+ hb->shadow_type,
+ area, widget, "handlebox_bin",
+ 0, 0, -1, -1);
+ else
+ gtk_paint_box(widget->style,
+ hb->bin_window,
+ GTK_WIDGET_STATE (widget),
+ hb->shadow_type,
+ &event->area, widget, "handlebox_bin",
+ 0, 0, -1, -1);
+
+/* We currently draw the handle _above_ the relief of the handlebox.
+ * it could also be drawn on the same level...
+
+ hb->handle_position == GTK_POS_LEFT ? DRAG_HANDLE_SIZE : 0,
+ hb->handle_position == GTK_POS_TOP ? DRAG_HANDLE_SIZE : 0,
+ width,
+ height);*/
+
+ switch (hb->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;
+ }
+
+ if (gdk_rectangle_intersect (event ? &event->area : area, &rect, &dest))
+ draw_textured_frame (widget, hb->bin_window, &rect,
+ GTK_SHADOW_OUT,
+ event ? &event->area : area);
+
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
- gtk_widget_size_allocate (bin->child, &child_allocation);
+ GdkRectangle child_area;
+ GdkEventExpose child_event;
+
+ if (!event) /* we were called from draw() */
+ {
+ if (gtk_widget_intersect (bin->child, area, &child_area))
+ gtk_widget_draw (bin->child, &child_area);
+ }
+ else /* we were called from expose() */
+ {
+ child_event = *event;
+
+ if (GTK_WIDGET_NO_WINDOW (bin->child) &&
+ gtk_widget_intersect (bin->child, &event->area, &child_event.area))
+ gtk_widget_event (bin->child, (GdkEvent *) &child_event);
+ }
}
}
static void
gtk_handle_box_draw (GtkWidget *widget,
- GdkRectangle *area)
+ GdkRectangle *area)
{
- GtkBin *bin;
- GdkRectangle child_area;
+ GtkHandleBox *hb;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
g_return_if_fail (area != NULL);
+ hb = GTK_HANDLE_BOX (widget);
+
if (GTK_WIDGET_DRAWABLE (widget))
{
- bin = GTK_BIN (widget);
-
- if (bin->child)
+ if (hb->child_detached)
{
- if (gtk_widget_intersect (bin->child, area, &child_area))
- gtk_widget_draw (bin->child, &child_area);
+ /* The area parameter does not make sense in this case, so we
+ * repaint everything.
+ */
+
+ gtk_handle_box_draw_ghost (hb);
+
+ area->x = 0;
+ area->y = 0;
+ area->width = 2 * GTK_CONTAINER (hb)->border_width + DRAG_HANDLE_SIZE;
+ area->height = area->width + GTK_BIN (hb)->child->allocation.height;
+ area->width += GTK_BIN (hb)->child->allocation.width;
+
+ gtk_handle_box_paint (widget, NULL, area);
}
+ else
+ gtk_handle_box_paint (widget, NULL, area);
}
}
static gint
gtk_handle_box_expose (GtkWidget *widget,
- GdkEventExpose *event)
+ GdkEventExpose *event)
{
- GtkBin *bin;
- GdkEventExpose child_event;
+ GtkHandleBox *hb;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_HANDLE_BOX (widget), FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
- bin = GTK_BIN (widget);
+ hb = GTK_HANDLE_BOX (widget);
+
+ if (event->window == widget->window)
+ {
+ if (hb->child_detached)
+ gtk_handle_box_draw_ghost (hb);
+ }
+ else
+ gtk_handle_box_paint (widget, event, NULL);
+ }
+
+ return FALSE;
+}
+
+static gint
+gtk_handle_box_button_changed (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkHandleBox *hb;
+ gboolean event_handled;
+ GdkCursor *fleur;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ hb = GTK_HANDLE_BOX (widget);
+
+ 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 != hb->bin_window)
+ return FALSE;
+
+ child = GTK_BIN (hb)->child;
+
+ switch (hb->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 * GTK_CONTAINER (hb)->border_width + child->allocation.width;
+ break;
+ case GTK_POS_BOTTOM:
+ in_handle = event->y > 2 * GTK_CONTAINER (hb)->border_width + child->allocation.height;
+ break;
+ default:
+ in_handle = FALSE;
+ break;
+ }
+
+ if (!child)
+ {
+ in_handle = FALSE;
+ event_handled = TRUE;
+ }
+
+ if (in_handle)
+ {
+ if (event->type == GDK_BUTTON_PRESS) /* Start a drag */
+ {
+ gint desk_x, desk_y;
+ gint root_x, root_y;
+ gint width, height;
+
+ gdk_window_get_deskrelative_origin (hb->bin_window, &desk_x, &desk_y);
+ gdk_window_get_origin (hb->bin_window, &root_x, &root_y);
+ gdk_window_get_size (hb->bin_window, &width, &height);
+
+ hb->float_allocation.x = root_x - event->x_root;
+ hb->float_allocation.y = root_y - event->y_root;
+ hb->float_allocation.width = width;
+ hb->float_allocation.height = height;
+
+ hb->deskoff_x = desk_x - root_x;
+ hb->deskoff_y = desk_y - root_y;
+
+ gdk_window_get_origin (widget->window, &root_x, &root_y);
+ gdk_window_get_size (widget->window, &width, &height);
+
+ hb->attach_allocation.x = root_x;
+ hb->attach_allocation.y = root_y;
+ hb->attach_allocation.width = width;
+ hb->attach_allocation.height = height;
+
+ hb->in_drag = TRUE;
+ fleur = gdk_cursor_new (GDK_FLEUR);
+ if (gdk_pointer_grab (widget->window,
+ FALSE,
+ (GDK_BUTTON1_MOTION_MASK |
+ GDK_POINTER_MOTION_HINT_MASK |
+ GDK_BUTTON_RELEASE_MASK),
+ NULL,
+ fleur,
+ GDK_CURRENT_TIME) != 0)
+ {
+ hb->in_drag = FALSE;
+ }
+
+ gdk_cursor_destroy (fleur);
+ event_handled = TRUE;
+ }
+ else if (hb->child_detached) /* Double click */
+ {
+ gtk_handle_box_reattach (hb);
+ }
+ }
+ }
+ else if (event->type == GDK_BUTTON_RELEASE &&
+ hb->in_drag)
+ {
+ if (event->window != widget->window)
+ return FALSE;
+
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ hb->in_drag = FALSE;
+ event_handled = TRUE;
+ }
+
+ return event_handled;
+}
+
+static gint
+gtk_handle_box_motion (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ GtkHandleBox *hb;
+ gint new_x, new_y;
+ gint snap_edge;
+ gboolean is_snapped = FALSE;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ hb = GTK_HANDLE_BOX (widget);
+ if (!hb->in_drag)
+ return FALSE;
+
+ if (!hb->in_drag || (event->window != widget->window))
+ return FALSE;
+
+ /* Calculate the attachment point on the float, if the float
+ * were detached
+ */
+ new_x = 0;
+ new_y = 0;
+ gdk_window_get_pointer (NULL, &new_x, &new_y, NULL);
+ new_x += hb->float_allocation.x;
+ new_y += hb->float_allocation.y;
+
+ snap_edge = hb->snap_edge;
+ if (snap_edge == -1)
+ snap_edge = (hb->handle_position == GTK_POS_LEFT ||
+ hb->handle_position == GTK_POS_RIGHT) ?
+ GTK_POS_TOP : GTK_POS_LEFT;
+
+ /* First, check if the snapped edge is aligned
+ */
+ switch (snap_edge)
+ {
+ case GTK_POS_TOP:
+ is_snapped = abs (hb->attach_allocation.y - new_y) < TOLERANCE;
+ break;
+ case GTK_POS_BOTTOM:
+ is_snapped = abs (hb->attach_allocation.y + (gint)hb->attach_allocation.height -
+ new_y - (gint)hb->float_allocation.height) < TOLERANCE;
+ break;
+ case GTK_POS_LEFT:
+ is_snapped = abs (hb->attach_allocation.x - new_x) < TOLERANCE;
+ break;
+ case GTK_POS_RIGHT:
+ is_snapped = abs (hb->attach_allocation.x + (gint)hb->attach_allocation.width -
+ new_x - (gint)hb->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 = hb->attach_allocation.x;
+ attach_pos2 = hb->attach_allocation.x + hb->attach_allocation.width;
+ float_pos1 = new_x;
+ float_pos2 = new_x + hb->float_allocation.width;
+ break;
+ case GTK_POS_LEFT:
+ case GTK_POS_RIGHT:
+ attach_pos1 = hb->attach_allocation.y;
+ attach_pos2 = hb->attach_allocation.y + hb->attach_allocation.height;
+ float_pos1 = new_y;
+ float_pos2 = new_y + hb->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));
+ }
+
+ if (is_snapped)
+ {
+ if (hb->child_detached)
+ {
+ hb->child_detached = FALSE;
+ gdk_window_hide (hb->float_window);
+ gdk_window_reparent (hb->bin_window, widget->window, 0, 0);
+ hb->float_window_mapped = FALSE;
+ gtk_signal_emit (GTK_OBJECT (hb),
+ handle_box_signals[SIGNAL_CHILD_ATTACHED],
+ GTK_BIN (hb)->child);
+
+ gtk_widget_queue_resize (widget);
+ }
+ }
+ else
+ {
+ gint width, height;
+
+ gdk_window_get_size (hb->float_window, &width, &height);
+ new_x += hb->deskoff_x;
+ new_y += hb->deskoff_y;
+
+ switch (hb->handle_position)
+ {
+ case GTK_POS_LEFT:
+ new_y += ((gint)hb->float_allocation.height - height) / 2;
+ break;
+ case GTK_POS_RIGHT:
+ new_x += (gint)hb->float_allocation.width - width;
+ new_y += ((gint)hb->float_allocation.height - height) / 2;
+ break;
+ case GTK_POS_TOP:
+ new_x += ((gint)hb->float_allocation.width - width) / 2;
+ break;
+ case GTK_POS_BOTTOM:
+ new_x += ((gint)hb->float_allocation.width - width) / 2;
+ new_y += (gint)hb->float_allocation.height - height;
+ break;
+ }
+
+ if (hb->child_detached)
+ {
+ gdk_window_move (hb->float_window, new_x, new_y);
+ gdk_window_raise (hb->float_window);
+ }
+ else
+ {
+ gint width;
+ gint height;
+ GtkRequisition child_requisition;
- child_event = *event;
- if (bin->child &&
- GTK_WIDGET_NO_WINDOW (bin->child) &&
- gtk_widget_intersect (bin->child, &event->area, &child_event.area))
- gtk_widget_event (bin->child, (GdkEvent*) &child_event);
+ hb->child_detached = TRUE;
+
+ if (GTK_BIN (hb)->child)
+ gtk_widget_get_child_requisition (GTK_BIN (hb)->child, &child_requisition);
+ else
+ {
+ child_requisition.width = 0;
+ child_requisition.height = 0;
+ }
+
+ width = child_requisition.width + 2 * GTK_CONTAINER (hb)->border_width;
+ height = child_requisition.height + 2 * GTK_CONTAINER (hb)->border_width;
+ gdk_window_move_resize (hb->float_window, new_x, new_y, width, height);
+ gdk_window_reparent (hb->bin_window, hb->float_window, 0, 0);
+ gdk_window_set_hints (hb->float_window, new_x, new_y, 0, 0, 0, 0, GDK_HINT_POS);
+ gdk_window_show (hb->float_window);
+ hb->float_window_mapped = TRUE;
+#if 0
+ /* this extra move is neccessary if we use decorations, or our
+ * window manager insists on decorations.
+ */
+ gdk_flush ();
+ gdk_window_move (hb->float_window, new_x, new_y);
+ gdk_flush ();
+#endif /* 0 */
+ gtk_signal_emit (GTK_OBJECT (hb),
+ handle_box_signals[SIGNAL_CHILD_DETACHED],
+ GTK_BIN (hb)->child);
+ gtk_handle_box_draw_ghost (hb);
+
+ gtk_widget_queue_resize (widget);
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+gtk_handle_box_add (GtkContainer *container,
+ GtkWidget *widget)
+{
+ g_return_if_fail (GTK_IS_HANDLE_BOX (container));
+ g_return_if_fail (GTK_BIN (container)->child == NULL);
+ g_return_if_fail (widget->parent == NULL);
+
+ gtk_widget_set_parent_window (widget, GTK_HANDLE_BOX (container)->bin_window);
+ GTK_CONTAINER_CLASS (parent_class)->add (container, widget);
+}
+
+static void
+gtk_handle_box_remove (GtkContainer *container,
+ GtkWidget *widget)
+{
+ g_return_if_fail (GTK_IS_HANDLE_BOX (container));
+ g_return_if_fail (GTK_BIN (container)->child == widget);
+
+ GTK_CONTAINER_CLASS (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;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_HANDLE_BOX (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ hb = GTK_HANDLE_BOX (widget);
+
+ if (event->window == hb->float_window)
+ {
+ gtk_handle_box_reattach (hb);
+
+ return TRUE;
}
return FALSE;
}
+static void
+gtk_handle_box_reattach (GtkHandleBox *hb)
+{
+ if (hb->child_detached)
+ {
+ hb->child_detached = FALSE;
+ if (GTK_WIDGET_REALIZED (hb))
+ {
+ gdk_window_hide (hb->float_window);
+ gdk_window_reparent (hb->bin_window, GTK_WIDGET (hb)->window, 0, 0);
+
+ if (GTK_BIN (hb)->child)
+ gtk_signal_emit (GTK_OBJECT (hb),
+ handle_box_signals[SIGNAL_CHILD_ATTACHED],
+ GTK_BIN (hb)->child);
+
+ }
+ hb->float_window_mapped = FALSE;
+ }
+ if (hb->in_drag)
+ {
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ hb->in_drag = FALSE;
+ }
+
+ gtk_widget_queue_resize (GTK_WIDGET (hb));
+}
projects / ~andy / gtk / blobdiff