mirror of
https://gitlab.gnome.org/GNOME/gimp
synced 2024-10-21 12:02:32 +00:00
7b85cf4de8
Make drag-and-drop rearrangement of dockables happen directly in the existing widget hierarchy so we don't have to use special, ugly widgets (read GimpDockSeparator:s) for that. More specifically, make edges of dockables and dockbooks have the same semantics as the GimpDockSeparators had. We put a highlight colored GdkWindow on top of the widget in question to highlight these special drop areas. This GdkWindow is not taken into consideration in the GTK+ drag-and-drop code, so it does not interupt the DND interaction. To achive this, there is a problem we must solve: Drag events in GTK+ are propagated inwards and out, but we sometimes want ancenstor widgets to take care of drop events. We solve this by introducing the concept of "drag handlers". A drag handler is asked if it will handle a given drag event, and if it will, a client will let the drag event be propagated upwards in the widget hierarchy. Right now, the GimpPanedBox is the only "drag handler". The code could be generalized more but it doesn't feel worth it at this point. The size of the special drop area is 5px, the same size as the default GtkPaned handles. This is because the plan is to later use these handles as drop areas too. Other changes of interest are: * We need to take care of "drag-motion", "drag-drop" and widget highlightning ourselves. We can not use the GtkDestDefaults conveniences with gtk_drag_dest_set() any longer since we need more control. * Make the drop callback pass the insert index directly instead of a GimpDockSeparator * Add some GIMP_LOG() debug output for DND * Disable the GimpDockSeparator code in GimpToolbox
79 lines
3.7 KiB
C
79 lines
3.7 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimppanedbox.h
|
|
* Copyright (C) 2001-2005 Michael Natterer <mitch@gimp.org>
|
|
* Copyright (C) 2009 Martin Nordholts <martinn@src.gnome.org>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __GIMP_PANED_BOX_H__
|
|
#define __GIMP_PANED_BOX_H__
|
|
|
|
|
|
#define GIMP_TYPE_PANED_BOX (gimp_paned_box_get_type ())
|
|
#define GIMP_PANED_BOX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_PANED_BOX, GimpPanedBox))
|
|
#define GIMP_PANED_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_PANED_BOX, GimpPanedBoxClass))
|
|
#define GIMP_IS_PANED_BOX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_PANED_BOX))
|
|
#define GIMP_IS_PANED_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_PANED_BOX))
|
|
#define GIMP_PANED_BOX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PANED_BOX, GimpPanedBoxClass))
|
|
|
|
|
|
typedef struct _GimpPanedBoxClass GimpPanedBoxClass;
|
|
typedef struct _GimpPanedBoxPrivate GimpPanedBoxPrivate;
|
|
|
|
/**
|
|
* GimpPanedBox:
|
|
*
|
|
* A #GtkBox with the children separated by #GtkPaned:s and basic
|
|
* docking mechanisms.
|
|
*/
|
|
struct _GimpPanedBox
|
|
{
|
|
GtkBox parent_instance;
|
|
|
|
GimpPanedBoxPrivate *p;
|
|
};
|
|
|
|
struct _GimpPanedBoxClass
|
|
{
|
|
GtkBoxClass parent_class;
|
|
};
|
|
|
|
|
|
GType gimp_paned_box_get_type (void) G_GNUC_CONST;
|
|
GtkWidget * gimp_paned_box_new (gboolean homogeneous,
|
|
gint spacing,
|
|
GtkOrientation orientation);
|
|
void gimp_paned_box_set_dropped_cb (GimpPanedBox *paned_box,
|
|
GimpPanedBoxDroppedFunc dropped_cb,
|
|
gpointer dropped_cb_data);
|
|
void gimp_paned_box_add_widget (GimpPanedBox *paned_box,
|
|
GtkWidget *widget,
|
|
gint index);
|
|
void gimp_paned_box_remove_widget (GimpPanedBox *paned_box,
|
|
GtkWidget *widget);
|
|
gboolean gimp_paned_box_will_handle_drag (GimpPanedBox *paned_box,
|
|
GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
gint time);
|
|
void gimp_paned_box_set_drag_handler (GimpPanedBox *paned_box,
|
|
GimpPanedBox *drag_handler);
|
|
|
|
|
|
#endif /* __GIMP_PANED_BOX_H__ */
|