2009-10-25 00:52:48 +08:00
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/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimppanedbox.c
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* Copyright (C) 2001-2005 Michael Natterer <mitch@gimp.org>
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* Copyright (C) 2009 Martin Nordholts <martinn@src.gnome.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "widgets-types.h"
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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#include "core/gimp.h"
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#include "core/gimpcontext.h"
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#include "core/gimpmarshal.h"
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#include "dialogs/dialogs.h"
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#include "gimpdialogfactory.h"
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#include "gimpdnd.h"
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#include "gimpdockable.h"
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#include "gimpdockbook.h"
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#include "gimpmenudock.h"
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2009-10-25 00:52:48 +08:00
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#include "gimppanedbox.h"
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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#include "gimpwidgets-utils.h"
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#include "gimp-log.h"
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/**
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* Defines the size of the area that dockables can be dropped on in
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* order to be inserted and get space on their own (rather than
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* inserted among others and sharing space)
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*/
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#define DROP_AREA_SIZE 5
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#define INSERT_INDEX_UNUSED G_MININT
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2009-10-25 00:52:48 +08:00
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struct _GimpPanedBoxPrivate
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{
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/* Widgets that are separated by panes */
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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GList *widgets;
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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/* Window used for drag-and-drop output */
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GdkWindow *dnd_window;
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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/* The insert index to use on drop */
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gint insert_index;
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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/* Callback on drop */
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GimpPanedBoxDroppedFunc dropped_cb;
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gpointer dropped_cb_data;
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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/* A drag handler offered to handle drag events */
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GimpPanedBox *drag_handler;
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};
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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static void gimp_paned_box_drag_leave (GtkWidget *widget,
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GdkDragContext *context,
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guint time);
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static gboolean gimp_paned_box_drag_motion (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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guint time);
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static gboolean gimp_paned_box_drag_drop (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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guint time);
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static void gimp_paned_box_realize (GtkWidget *widget);
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static void gimp_paned_box_unrealize (GtkWidget *widget);
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static void gimp_paned_box_set_widget_drag_handler (GtkWidget *widget,
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GimpPanedBox *handler);
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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G_DEFINE_TYPE (GimpPanedBox, gimp_paned_box, GTK_TYPE_BOX)
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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#define parent_class gimp_paned_box_parent_class
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2009-10-25 00:52:48 +08:00
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
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static const GtkTargetEntry dialog_target_table[] = { GIMP_TARGET_DIALOG };
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2009-10-25 00:52:48 +08:00
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static void
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gimp_paned_box_class_init (GimpPanedBoxClass *klass)
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{
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app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
2009-10-25 00:52:48 +08:00
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
widget_class->drag_leave = gimp_paned_box_drag_leave;
|
|
|
|
widget_class->drag_motion = gimp_paned_box_drag_motion;
|
|
|
|
widget_class->drag_drop = gimp_paned_box_drag_drop;
|
|
|
|
widget_class->realize = gimp_paned_box_realize;
|
|
|
|
widget_class->unrealize = gimp_paned_box_unrealize;
|
2009-10-25 00:52:48 +08:00
|
|
|
|
|
|
|
g_type_class_add_private (klass, sizeof (GimpPanedBoxPrivate));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_paned_box_init (GimpPanedBox *paned_box)
|
|
|
|
{
|
|
|
|
paned_box->p = G_TYPE_INSTANCE_GET_PRIVATE (paned_box,
|
|
|
|
GIMP_TYPE_PANED_BOX,
|
|
|
|
GimpPanedBoxPrivate);
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
gtk_drag_dest_set (GTK_WIDGET (paned_box),
|
|
|
|
0,
|
|
|
|
dialog_target_table, G_N_ELEMENTS (dialog_target_table),
|
|
|
|
GDK_ACTION_MOVE);
|
|
|
|
}
|
2009-10-25 00:52:48 +08:00
|
|
|
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
static void
|
|
|
|
gimp_paned_box_realize (GtkWidget *widget)
|
|
|
|
{
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->realize (widget);
|
|
|
|
|
|
|
|
/* We realize() dnd_window on demand in
|
|
|
|
* gimp_paned_box_show_separators()
|
|
|
|
*/
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
gimp_paned_box_unrealize (GtkWidget *widget)
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
GimpPanedBox *paned_box = GIMP_PANED_BOX (widget);
|
2009-10-25 02:33:09 +08:00
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
if (paned_box->p->dnd_window)
|
|
|
|
{
|
|
|
|
gdk_window_set_user_data (paned_box->p->dnd_window, NULL);
|
|
|
|
gdk_window_destroy (paned_box->p->dnd_window);
|
|
|
|
paned_box->p->dnd_window = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_paned_box_set_widget_drag_handler (GtkWidget *widget,
|
|
|
|
GimpPanedBox *drag_handler)
|
|
|
|
{
|
|
|
|
/* Hook us in for drag events. We could abstract this properly and
|
|
|
|
* put gimp_paned_box_will_handle_drag() in an interface for
|
|
|
|
* example, but it doesn't feel worth it at this point
|
|
|
|
*/
|
|
|
|
if (GIMP_IS_DOCKBOOK (widget))
|
|
|
|
{
|
|
|
|
gimp_dockbook_set_drag_handler (GIMP_DOCKBOOK (widget),
|
|
|
|
drag_handler);
|
|
|
|
}
|
|
|
|
if (GIMP_IS_DOCK (widget))
|
|
|
|
{
|
|
|
|
GimpPanedBox *dock_paned_box = NULL;
|
|
|
|
dock_paned_box = GIMP_PANED_BOX (gimp_dock_get_vbox (GIMP_DOCK (widget)));
|
|
|
|
gimp_paned_box_set_drag_handler (dock_paned_box, drag_handler);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_paned_box_position_drop_indicator (GimpPanedBox *paned_box,
|
|
|
|
gint x,
|
|
|
|
gint y,
|
|
|
|
gint width,
|
|
|
|
gint height)
|
|
|
|
{
|
|
|
|
GtkWidget *widget = GTK_WIDGET (paned_box);
|
|
|
|
|
|
|
|
if (! gtk_widget_is_drawable (widget))
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* Create or move the GdkWindow in place */
|
|
|
|
if (! paned_box->p->dnd_window)
|
|
|
|
{
|
|
|
|
GdkColor *color;
|
|
|
|
GtkWidget *paned_box_w = NULL;
|
|
|
|
GtkAllocation allocation = { 0, };
|
|
|
|
GdkWindowAttr attributes = { 0, };
|
|
|
|
|
|
|
|
paned_box_w = GTK_WIDGET (paned_box);
|
|
|
|
gtk_widget_get_allocation (paned_box_w, &allocation);
|
|
|
|
|
|
|
|
attributes.x = x;
|
|
|
|
attributes.y = y;
|
|
|
|
attributes.width = width;
|
|
|
|
attributes.height = height;
|
|
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
|
|
attributes.wclass = GDK_INPUT_OUTPUT;
|
|
|
|
attributes.event_mask = gtk_widget_get_events (paned_box_w);
|
|
|
|
|
|
|
|
paned_box->p->dnd_window = gdk_window_new (gtk_widget_get_window (paned_box_w),
|
|
|
|
&attributes,
|
|
|
|
GDK_WA_X | GDK_WA_Y);
|
|
|
|
gdk_window_set_user_data (paned_box->p->dnd_window, paned_box_w);
|
|
|
|
|
|
|
|
color = gtk_widget_get_style (widget)->bg + GTK_STATE_SELECTED;
|
|
|
|
gdk_window_set_background (paned_box->p->dnd_window, color);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gdk_window_move_resize (paned_box->p->dnd_window,
|
|
|
|
x, y,
|
|
|
|
width, height);
|
|
|
|
}
|
|
|
|
gdk_window_show (paned_box->p->dnd_window);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_paned_box_hide_drop_indicator (GimpPanedBox *paned_box)
|
|
|
|
{
|
|
|
|
if (! paned_box->p->dnd_window)
|
|
|
|
return;
|
|
|
|
|
|
|
|
gdk_window_hide (paned_box->p->dnd_window);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gimp_paned_box_drag_leave (GtkWidget *widget,
|
|
|
|
GdkDragContext *context,
|
|
|
|
guint time)
|
|
|
|
{
|
|
|
|
gimp_paned_box_hide_drop_indicator (GIMP_PANED_BOX (widget));
|
|
|
|
gimp_highlight_widget (widget, FALSE);
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gimp_paned_box_drag_motion (GtkWidget *widget,
|
|
|
|
GdkDragContext *context,
|
|
|
|
gint x,
|
|
|
|
gint y,
|
|
|
|
guint time)
|
|
|
|
{
|
|
|
|
GimpPanedBox *paned_box = GIMP_PANED_BOX (widget);
|
|
|
|
gint insert_index = INSERT_INDEX_UNUSED;
|
|
|
|
gint dnd_window_x = 0;
|
|
|
|
gint dnd_window_y = 0;
|
|
|
|
gint dnd_window_w = 0;
|
|
|
|
gint dnd_window_h = 0;
|
|
|
|
GtkOrientation orientation = 0;
|
|
|
|
GtkAllocation allocation = { 0, };
|
|
|
|
gboolean handle = FALSE;
|
|
|
|
|
|
|
|
if (gimp_paned_box_will_handle_drag (paned_box->p->drag_handler,
|
|
|
|
widget,
|
|
|
|
context,
|
|
|
|
x, y,
|
|
|
|
time))
|
|
|
|
{
|
|
|
|
/* A parent widget will handle the event, just go to the end */
|
|
|
|
handle = FALSE;
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
gtk_widget_get_allocation (widget, &allocation);
|
|
|
|
|
|
|
|
/* See if we're at the edge of the dock */
|
|
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (paned_box));
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
|
|
{
|
|
|
|
dnd_window_y = 0;
|
|
|
|
dnd_window_w = DROP_AREA_SIZE;
|
|
|
|
dnd_window_h = allocation.height;
|
|
|
|
|
|
|
|
if (x < DROP_AREA_SIZE)
|
|
|
|
{
|
|
|
|
insert_index = 0;
|
|
|
|
dnd_window_x = 0;
|
|
|
|
}
|
|
|
|
if (x > allocation.width - DROP_AREA_SIZE)
|
|
|
|
{
|
|
|
|
insert_index = -1;
|
|
|
|
dnd_window_x = allocation.width - DROP_AREA_SIZE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else /* if (orientation = GTK_ORIENTATION_VERTICAL) */
|
|
|
|
{
|
|
|
|
dnd_window_x = 0;
|
|
|
|
dnd_window_w = allocation.width;
|
|
|
|
dnd_window_h = DROP_AREA_SIZE;
|
|
|
|
|
|
|
|
if (y < DROP_AREA_SIZE)
|
|
|
|
{
|
|
|
|
insert_index = 0;
|
|
|
|
dnd_window_y = 0;
|
|
|
|
}
|
|
|
|
if (y > allocation.height - DROP_AREA_SIZE)
|
|
|
|
{
|
|
|
|
insert_index = -1;
|
|
|
|
dnd_window_y = allocation.height - DROP_AREA_SIZE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we are at the edge, show a GdkWindow to communicate that a
|
|
|
|
* drop will create a new dock column
|
|
|
|
*/
|
|
|
|
handle = (insert_index != INSERT_INDEX_UNUSED);
|
|
|
|
if (handle)
|
|
|
|
{
|
|
|
|
gimp_paned_box_position_drop_indicator (paned_box,
|
|
|
|
allocation.x + dnd_window_x,
|
|
|
|
allocation.y + dnd_window_y,
|
|
|
|
dnd_window_w,
|
|
|
|
dnd_window_h);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gimp_paned_box_hide_drop_indicator (paned_box);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Save the insert index for drag-drop */
|
|
|
|
paned_box->p->insert_index = insert_index;
|
|
|
|
|
|
|
|
finish:
|
|
|
|
gdk_drag_status (context, handle ? GDK_ACTION_MOVE : 0, time);
|
|
|
|
gimp_highlight_widget (widget, handle);
|
|
|
|
return handle;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gimp_paned_box_drag_drop (GtkWidget *widget,
|
|
|
|
GdkDragContext *context,
|
|
|
|
gint x,
|
|
|
|
gint y,
|
|
|
|
guint time)
|
|
|
|
{
|
|
|
|
gboolean found = FALSE;
|
|
|
|
GimpPanedBox *paned_box = GIMP_PANED_BOX (widget);
|
|
|
|
|
|
|
|
if (gimp_paned_box_will_handle_drag (paned_box->p->drag_handler,
|
|
|
|
widget,
|
|
|
|
context,
|
|
|
|
x, y,
|
|
|
|
time))
|
|
|
|
{
|
|
|
|
/* A parent widget will handle the event, just go to the end */
|
|
|
|
found = FALSE;
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (paned_box->p->dropped_cb)
|
|
|
|
{
|
|
|
|
GtkWidget *source = gtk_drag_get_source_widget (context);
|
|
|
|
|
|
|
|
if (source)
|
|
|
|
found = paned_box->p->dropped_cb (source,
|
|
|
|
paned_box->p->insert_index,
|
|
|
|
paned_box->p->dropped_cb_data);
|
|
|
|
}
|
|
|
|
|
|
|
|
finish:
|
|
|
|
if (found)
|
|
|
|
gtk_drag_finish (context, TRUE, TRUE, time);
|
|
|
|
return found;
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
GtkWidget *
|
|
|
|
gimp_paned_box_new (gboolean homogeneous,
|
|
|
|
gint spacing,
|
|
|
|
GtkOrientation orientation)
|
|
|
|
{
|
|
|
|
return g_object_new (GIMP_TYPE_PANED_BOX,
|
|
|
|
"homogeneous", homogeneous,
|
|
|
|
"spacing", 0,
|
|
|
|
"orientation", orientation,
|
|
|
|
NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
gimp_paned_box_set_dropped_cb (GimpPanedBox *paned_box,
|
|
|
|
GimpPanedBoxDroppedFunc dropped_cb,
|
|
|
|
gpointer dropped_cb_data)
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
|
|
|
g_return_if_fail (GIMP_IS_PANED_BOX (paned_box));
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
paned_box->p->dropped_cb = dropped_cb;
|
|
|
|
paned_box->p->dropped_cb_data = dropped_cb_data;
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gimp_paned_box_add_widget:
|
|
|
|
* @paned_box: A #GimpPanedBox
|
|
|
|
* @widget: The #GtkWidget to add
|
|
|
|
* @index: Where to add the @widget
|
|
|
|
*
|
|
|
|
* Add a #GtkWidget to the #GimpPanedBox in a hierarchy of #GtkPaned:s
|
|
|
|
* so the space can be manually distributed between the widgets.
|
|
|
|
**/
|
|
|
|
void
|
|
|
|
gimp_paned_box_add_widget (GimpPanedBox *paned_box,
|
|
|
|
GtkWidget *widget,
|
|
|
|
gint index)
|
|
|
|
{
|
|
|
|
gint old_length = 0;
|
|
|
|
|
|
|
|
g_return_if_fail (GIMP_IS_PANED_BOX (paned_box));
|
|
|
|
g_return_if_fail (GTK_IS_WIDGET (widget));
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
GIMP_LOG (DND, "Adding GtkWidget %p to GimpPanedBox %p", widget, paned_box);
|
|
|
|
|
2009-10-25 00:52:48 +08:00
|
|
|
/* Calculate length */
|
|
|
|
old_length = g_list_length (paned_box->p->widgets);
|
|
|
|
|
|
|
|
/* If index is invalid append at the end */
|
|
|
|
if (index >= old_length || index < 0)
|
|
|
|
{
|
|
|
|
index = old_length;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Insert into the list */
|
|
|
|
paned_box->p->widgets = g_list_insert (paned_box->p->widgets, widget, index);
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
/* Hook us in for drag events. We could abstract this but it doesn't
|
|
|
|
* seem worth it at this point
|
|
|
|
*/
|
|
|
|
gimp_paned_box_set_widget_drag_handler (widget, paned_box);
|
|
|
|
|
2009-10-25 00:52:48 +08:00
|
|
|
/* Insert into the GtkPaned hierarchy */
|
|
|
|
if (old_length == 0)
|
|
|
|
{
|
|
|
|
gtk_box_pack_start (GTK_BOX (paned_box), widget, TRUE, TRUE, 0);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2009-10-25 02:08:08 +08:00
|
|
|
GtkWidget *old_widget;
|
|
|
|
GtkWidget *parent;
|
|
|
|
GtkWidget *paned;
|
|
|
|
GtkOrientation orientation;
|
2009-10-25 00:52:48 +08:00
|
|
|
|
|
|
|
/* Figure out what widget to detach */
|
|
|
|
if (index == 0)
|
|
|
|
{
|
|
|
|
old_widget = g_list_nth_data (paned_box->p->widgets, index + 1);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
old_widget = g_list_nth_data (paned_box->p->widgets, index - 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
parent = gtk_widget_get_parent (old_widget);
|
|
|
|
|
|
|
|
if (old_length > 1 && index > 0)
|
|
|
|
{
|
|
|
|
GtkWidget *grandparent = gtk_widget_get_parent (parent);
|
|
|
|
|
|
|
|
old_widget = parent;
|
|
|
|
parent = grandparent;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Deatch the widget and bulid up a new hierarchy */
|
|
|
|
g_object_ref (old_widget);
|
|
|
|
gtk_container_remove (GTK_CONTAINER (parent), old_widget);
|
|
|
|
|
2009-10-25 02:08:08 +08:00
|
|
|
/* GtkPaned is abstract :( */
|
|
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (paned_box));
|
|
|
|
paned = (orientation == GTK_ORIENTATION_VERTICAL ?
|
|
|
|
gtk_vpaned_new () :
|
|
|
|
gtk_hpaned_new ());
|
|
|
|
|
|
|
|
if (GTK_IS_PANED (parent))
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
|
|
|
gtk_paned_pack1 (GTK_PANED (parent), paned, TRUE, FALSE);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gtk_box_pack_start (GTK_BOX (parent), paned, TRUE, TRUE, 0);
|
|
|
|
}
|
|
|
|
gtk_widget_show (paned);
|
|
|
|
|
|
|
|
if (index == 0)
|
|
|
|
{
|
|
|
|
gtk_paned_pack1 (GTK_PANED (paned), widget,
|
|
|
|
TRUE, FALSE);
|
|
|
|
gtk_paned_pack2 (GTK_PANED (paned), old_widget,
|
|
|
|
TRUE, FALSE);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gtk_paned_pack1 (GTK_PANED (paned), old_widget,
|
|
|
|
TRUE, FALSE);
|
|
|
|
gtk_paned_pack2 (GTK_PANED (paned), widget,
|
|
|
|
TRUE, FALSE);
|
|
|
|
}
|
|
|
|
|
|
|
|
g_object_unref (old_widget);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gimp_paned_box_remove_widget:
|
|
|
|
* @paned_box: A #GimpPanedBox
|
|
|
|
* @widget: The #GtkWidget to remove
|
|
|
|
*
|
|
|
|
* Remove a #GtkWidget from a #GimpPanedBox added with
|
|
|
|
* gimp_widgets_add_paned_widget().
|
|
|
|
**/
|
|
|
|
void
|
|
|
|
gimp_paned_box_remove_widget (GimpPanedBox *paned_box,
|
|
|
|
GtkWidget *widget)
|
|
|
|
{
|
|
|
|
gint old_length = 0;
|
|
|
|
gint index = 0;
|
|
|
|
GtkWidget *other_widget = NULL;
|
|
|
|
GtkWidget *parent = NULL;
|
|
|
|
GtkWidget *grandparent = NULL;
|
|
|
|
|
|
|
|
g_return_if_fail (GIMP_IS_PANED_BOX (paned_box));
|
|
|
|
g_return_if_fail (GTK_IS_WIDGET (widget));
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
GIMP_LOG (DND, "Removing GtkWidget %p from GimpPanedBox %p", widget, paned_box);
|
|
|
|
|
2009-10-25 00:52:48 +08:00
|
|
|
/* Calculate length and index */
|
|
|
|
old_length = g_list_length (paned_box->p->widgets);
|
|
|
|
index = g_list_index (paned_box->p->widgets, widget);
|
|
|
|
|
|
|
|
/* Remove from list */
|
|
|
|
paned_box->p->widgets = g_list_remove (paned_box->p->widgets, widget);
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
/* Reset the drag events hook */
|
2009-12-12 23:36:50 +08:00
|
|
|
gimp_paned_box_set_widget_drag_handler (widget, NULL);
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
|
2009-10-25 00:52:48 +08:00
|
|
|
/* Remove from widget hierarchy */
|
|
|
|
if (old_length == 1)
|
|
|
|
{
|
2009-11-29 22:07:10 +08:00
|
|
|
/* The widget might already be parent-less if we are in
|
|
|
|
* destruction, .e.g when closing a dock window.
|
|
|
|
*/
|
|
|
|
if (gtk_widget_get_parent (widget) != NULL)
|
|
|
|
gtk_container_remove (GTK_CONTAINER (paned_box), widget);
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
g_object_ref (widget);
|
|
|
|
|
|
|
|
parent = gtk_widget_get_parent (GTK_WIDGET (widget));
|
|
|
|
grandparent = gtk_widget_get_parent (parent);
|
|
|
|
|
|
|
|
if (index == 0)
|
|
|
|
other_widget = gtk_paned_get_child2 (GTK_PANED (parent));
|
|
|
|
else
|
|
|
|
other_widget = gtk_paned_get_child1 (GTK_PANED (parent));
|
|
|
|
|
|
|
|
g_object_ref (other_widget);
|
|
|
|
|
|
|
|
gtk_container_remove (GTK_CONTAINER (parent), other_widget);
|
|
|
|
gtk_container_remove (GTK_CONTAINER (parent), GTK_WIDGET (widget));
|
|
|
|
|
|
|
|
gtk_container_remove (GTK_CONTAINER (grandparent), parent);
|
|
|
|
|
2009-10-25 02:08:08 +08:00
|
|
|
if (GTK_IS_PANED (grandparent))
|
2009-10-25 00:52:48 +08:00
|
|
|
gtk_paned_pack1 (GTK_PANED (grandparent), other_widget, TRUE, FALSE);
|
|
|
|
else
|
|
|
|
gtk_box_pack_start (GTK_BOX (paned_box), other_widget, TRUE, TRUE, 0);
|
|
|
|
|
|
|
|
g_object_unref (other_widget);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
/**
|
|
|
|
* gimp_paned_box_will_handle_drag:
|
|
|
|
* @paned_box: A #GimpPanedBox
|
|
|
|
* @widget: The widget that got the drag event
|
|
|
|
* @context: Context from drag event
|
|
|
|
* @x: x from drag event
|
|
|
|
* @y: y from drag event
|
|
|
|
* @time: time from drag event
|
|
|
|
*
|
|
|
|
* Returns: %TRUE if the drag event on @widget will be handled by
|
|
|
|
* @paned_box.
|
|
|
|
**/
|
|
|
|
gboolean
|
|
|
|
gimp_paned_box_will_handle_drag (GimpPanedBox *paned_box,
|
|
|
|
GtkWidget *widget,
|
|
|
|
GdkDragContext *context,
|
|
|
|
gint x,
|
|
|
|
gint y,
|
|
|
|
gint time)
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
gint paned_box_x = 0;
|
|
|
|
gint paned_box_y = 0;
|
|
|
|
GtkAllocation allocation = { 0, };
|
|
|
|
GtkOrientation orientation = 0;
|
|
|
|
gboolean will_handle = FALSE;
|
|
|
|
|
|
|
|
g_return_val_if_fail (paned_box == NULL ||
|
|
|
|
GIMP_IS_PANED_BOX (paned_box), FALSE);
|
|
|
|
|
|
|
|
/* Check for NULL to allow cleaner client code */
|
|
|
|
if (paned_box == NULL)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
/* Our handler might handle it */
|
|
|
|
if (gimp_paned_box_will_handle_drag (paned_box->p->drag_handler,
|
|
|
|
widget,
|
|
|
|
context,
|
|
|
|
x, y,
|
|
|
|
time))
|
|
|
|
{
|
|
|
|
/* Return TRUE so the client will pass on the drag event */
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we don't have a common ancenstor we will not handle it */
|
|
|
|
if (! gtk_widget_translate_coordinates (widget,
|
|
|
|
GTK_WIDGET (paned_box),
|
|
|
|
x, y,
|
|
|
|
&paned_box_x, &paned_box_y))
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
/* Return FALSE so the client can take care of the drag event */
|
|
|
|
return FALSE;
|
|
|
|
}
|
2009-10-25 00:52:48 +08:00
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
/* We now have paned_box coordinates, see if the paned_box will
|
|
|
|
* handle the event
|
|
|
|
*/
|
|
|
|
gtk_widget_get_allocation (GTK_WIDGET (paned_box), &allocation);
|
|
|
|
|
|
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (paned_box));
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
|
|
{
|
|
|
|
will_handle = (paned_box_x < DROP_AREA_SIZE ||
|
|
|
|
paned_box_x > allocation.width - DROP_AREA_SIZE);
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
else /*if (orientation = GTK_ORIENTATION_VERTICAL)*/
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
will_handle = (paned_box_y < DROP_AREA_SIZE ||
|
|
|
|
paned_box_y > allocation.height - DROP_AREA_SIZE);
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
return will_handle;
|
|
|
|
}
|
2009-10-25 00:52:48 +08:00
|
|
|
|
|
|
|
void
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
gimp_paned_box_set_drag_handler (GimpPanedBox *paned_box,
|
|
|
|
GimpPanedBox *drag_handler)
|
2009-10-25 00:52:48 +08:00
|
|
|
{
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
g_return_if_fail (GIMP_IS_PANED_BOX (paned_box));
|
2009-10-25 00:52:48 +08:00
|
|
|
|
app: Use a GdkWindow instead of GimpDockSeparators for dockable DND
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
2009-11-30 01:22:12 +08:00
|
|
|
paned_box->p->drag_handler = drag_handler;
|
2009-10-25 00:52:48 +08:00
|
|
|
}
|