forked from AuroraMiddleware/gtk
0b4d29fd6e
* gdk/gdktypes.h: Merge in Win32 version: Define macro GDKVAR for declaring gdk variables exported/imported from the DLL. New image type enum, GDK_IMAGE_SHARED_PIXMAP, for gdk_imlib. New drag and drop protocol enums, GDK_DRAG_PROTO_WIN32_DROPFILES and GDK_DRAG_PROTO_OLE2. * gdk/gdk.h: Merge in Win32 version: Two new functions, gdk_pixmap_create_on_shared_image and gdk_image_bitmap_new. So far declared only for the Win32 version, but could be in the X11 version as well. (Needed for a Xlib-less gdk_imlib.) gdk_color_hash should have only one parameter. Declare gdk_threads_mutex with GDKVAR. * gdk/gdkcolor.c (gdk_color_hash): As a hash function should have just one parameter. * gdk/gdkimage.c (gdk_image_get): Initialize bpp correctly. Bytes per pixel, not bits. * gdk/gdkrgb.c: Mingle includes somewhat. (gdk_rgb_select_conv): Fetch bpp (which means bits-per-pixel here) from another place on Win32. Accept also depth==32 (which we might get on Win32) with bpp==32. * gtk/{gtkclist,gtkctree,gtkdnd,gtkditable,gtkfontsel, gtkhandlebox,gtklayout,gtkmain,gtkplug,gtkpreview,gtkrc, gtkselection,gtksocket,gtkstyle,gtkwidget,gtkwindow}.c: Include gdx.h from "gdkx.h", not "gdk/gdkx.h", as gdkx.h will be in the backend-dependent directory, not in the common gdk directory. * gtk/testgtk.c: Ditto. Also, don't use ../gdk patchs to gdk headers.
1255 lines
35 KiB
C
1255 lines
35 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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* Copyright (C) 1998 Elliot Lee
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <stdlib.h>
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#include "gdkx.h"
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#include "gtkhandlebox.h"
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#include "gtkmain.h"
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#include "gtksignal.h"
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#include "gtkwindow.h"
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enum {
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ARG_0,
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ARG_SHADOW
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};
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#define DRAG_HANDLE_SIZE 10
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#define CHILDLESS_SIZE 25
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#define GHOST_HEIGHT 3
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#define TOLERANCE 5
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enum
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{
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SIGNAL_CHILD_ATTACHED,
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SIGNAL_CHILD_DETACHED,
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SIGNAL_LAST
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};
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/* The algorithm for docking and redocking implemented here
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* has a couple of nice properties:
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*
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* 1) During a single drag, docking always occurs at the
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* the same cursor position. This means that the users
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* motions are reversible, and that you won't
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* undock/dock oscillations.
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*
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* 2) Docking generally occurs at user-visible features.
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* The user, once they figure out to redock, will
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* have useful information about doing it again in
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* the future.
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*
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* Please try to preserve these properties if you
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* change the algorithm. (And the current algorithm
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* is far from ideal). Briefly, the current algorithm
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* for deciding whether the handlebox is docked or not:
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*
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* 1) The decision is done by comparing two rectangles - the
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* allocation if the widget at the start of the drag,
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* and the boundary of hb->bin_window at the start of
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* of the drag offset by the distance that the cursor
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* has moved.
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*
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* 2) These rectangles must have one edge, the "snap_edge"
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* of the handlebox, aligned within TOLERANCE.
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*
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* 3) On the other dimension, the extents of one rectangle
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* must be contained in the extents of the other,
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* extended by tolerance. That is, either we can have:
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*
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* <-TOLERANCE-|--------bin_window--------------|-TOLERANCE->
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* <--------float_window-------------------->
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*
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* or we can have:
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*
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* <-TOLERANCE-|------float_window--------------|-TOLERANCE->
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* <--------bin_window-------------------->
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*/
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static void gtk_handle_box_class_init (GtkHandleBoxClass *klass);
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static void gtk_handle_box_init (GtkHandleBox *handle_box);
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static void gtk_handle_box_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_handle_box_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_handle_box_destroy (GtkObject *object);
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static void gtk_handle_box_map (GtkWidget *widget);
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static void gtk_handle_box_unmap (GtkWidget *widget);
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static void gtk_handle_box_realize (GtkWidget *widget);
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static void gtk_handle_box_unrealize (GtkWidget *widget);
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static void gtk_handle_box_style_set (GtkWidget *widget,
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GtkStyle *previous_style);
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static void gtk_handle_box_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_handle_box_size_allocate (GtkWidget *widget,
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GtkAllocation *real_allocation);
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static void gtk_handle_box_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_handle_box_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_handle_box_draw_ghost (GtkHandleBox *hb);
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static void gtk_handle_box_paint (GtkWidget *widget,
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GdkEventExpose *event,
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GdkRectangle *area);
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static void gtk_handle_box_draw (GtkWidget *widget,
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GdkRectangle *area);
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static gint gtk_handle_box_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gint gtk_handle_box_button_changed (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_handle_box_motion (GtkWidget *widget,
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GdkEventMotion *event);
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static gint gtk_handle_box_delete_event (GtkWidget *widget,
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GdkEventAny *event);
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static void gtk_handle_box_reattach (GtkHandleBox *hb);
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static GtkBinClass *parent_class;
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static guint handle_box_signals[SIGNAL_LAST] = { 0 };
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guint
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gtk_handle_box_get_type (void)
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{
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static guint handle_box_type = 0;
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if (!handle_box_type)
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{
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static const GtkTypeInfo handle_box_info =
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{
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"GtkHandleBox",
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sizeof (GtkHandleBox),
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sizeof (GtkHandleBoxClass),
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(GtkClassInitFunc) gtk_handle_box_class_init,
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(GtkObjectInitFunc) gtk_handle_box_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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handle_box_type = gtk_type_unique (gtk_bin_get_type (), &handle_box_info);
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}
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return handle_box_type;
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}
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static void
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gtk_handle_box_class_init (GtkHandleBoxClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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object_class = (GtkObjectClass *) class;
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widget_class = (GtkWidgetClass *) class;
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container_class = (GtkContainerClass *) class;
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parent_class = gtk_type_class (gtk_bin_get_type ());
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gtk_object_add_arg_type ("GtkHandleBox::shadow", GTK_TYPE_SHADOW_TYPE, GTK_ARG_READWRITE, ARG_SHADOW);
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object_class->set_arg = gtk_handle_box_set_arg;
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object_class->get_arg = gtk_handle_box_get_arg;
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handle_box_signals[SIGNAL_CHILD_ATTACHED] =
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gtk_signal_new ("child_attached",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (GtkHandleBoxClass, child_attached),
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gtk_marshal_NONE__POINTER,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_WIDGET);
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handle_box_signals[SIGNAL_CHILD_DETACHED] =
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gtk_signal_new ("child_detached",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (GtkHandleBoxClass, child_detached),
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gtk_marshal_NONE__POINTER,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_WIDGET);
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gtk_object_class_add_signals (object_class, handle_box_signals, SIGNAL_LAST);
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object_class->destroy = gtk_handle_box_destroy;
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widget_class->map = gtk_handle_box_map;
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widget_class->unmap = gtk_handle_box_unmap;
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widget_class->realize = gtk_handle_box_realize;
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widget_class->unrealize = gtk_handle_box_unrealize;
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widget_class->style_set = gtk_handle_box_style_set;
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widget_class->size_request = gtk_handle_box_size_request;
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widget_class->size_allocate = gtk_handle_box_size_allocate;
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widget_class->draw = gtk_handle_box_draw;
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widget_class->expose_event = gtk_handle_box_expose;
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widget_class->button_press_event = gtk_handle_box_button_changed;
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widget_class->button_release_event = gtk_handle_box_button_changed;
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widget_class->motion_notify_event = gtk_handle_box_motion;
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widget_class->delete_event = gtk_handle_box_delete_event;
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container_class->add = gtk_handle_box_add;
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container_class->remove = gtk_handle_box_remove;
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class->child_attached = NULL;
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class->child_detached = NULL;
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}
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static void
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gtk_handle_box_init (GtkHandleBox *handle_box)
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{
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GTK_WIDGET_UNSET_FLAGS (handle_box, GTK_NO_WINDOW);
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handle_box->bin_window = NULL;
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handle_box->float_window = NULL;
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handle_box->shadow_type = GTK_SHADOW_OUT;
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handle_box->handle_position = GTK_POS_LEFT;
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handle_box->float_window_mapped = FALSE;
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handle_box->child_detached = FALSE;
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handle_box->in_drag = FALSE;
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handle_box->shrink_on_detach = TRUE;
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handle_box->snap_edge = -1;
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}
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static void
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gtk_handle_box_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id)
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{
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GtkHandleBox *handle_box;
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handle_box = GTK_HANDLE_BOX (object);
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switch (arg_id)
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{
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case ARG_SHADOW:
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gtk_handle_box_set_shadow_type (handle_box, GTK_VALUE_ENUM (*arg));
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break;
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default:
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break;
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}
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}
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static void
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gtk_handle_box_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id)
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{
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GtkHandleBox *handle_box;
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handle_box = GTK_HANDLE_BOX (object);
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switch (arg_id)
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{
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case ARG_SHADOW:
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GTK_VALUE_ENUM (*arg) = handle_box->shadow_type;
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break;
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default:
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arg->type = GTK_TYPE_INVALID;
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break;
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}
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}
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GtkWidget*
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gtk_handle_box_new (void)
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{
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return GTK_WIDGET (gtk_type_new (gtk_handle_box_get_type ()));
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}
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static void
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gtk_handle_box_destroy (GtkObject *object)
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{
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GtkHandleBox *hb;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GTK_IS_HANDLE_BOX (object));
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hb = GTK_HANDLE_BOX (object);
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if (GTK_OBJECT_CLASS (parent_class)->destroy)
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(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
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}
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static void
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gtk_handle_box_map (GtkWidget *widget)
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{
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GtkBin *bin;
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GtkHandleBox *hb;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
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bin = GTK_BIN (widget);
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hb = GTK_HANDLE_BOX (widget);
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if (bin->child &&
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GTK_WIDGET_VISIBLE (bin->child) &&
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!GTK_WIDGET_MAPPED (bin->child))
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gtk_widget_map (bin->child);
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if (hb->child_detached && !hb->float_window_mapped)
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{
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gdk_window_show (hb->float_window);
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hb->float_window_mapped = TRUE;
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}
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gdk_window_show (hb->bin_window);
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gdk_window_show (widget->window);
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}
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static void
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gtk_handle_box_unmap (GtkWidget *widget)
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{
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GtkHandleBox *hb;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
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GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
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hb = GTK_HANDLE_BOX (widget);
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gdk_window_hide (widget->window);
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if (hb->float_window_mapped)
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{
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gdk_window_hide (hb->float_window);
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hb->float_window_mapped = FALSE;
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}
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}
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static void
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gtk_handle_box_realize (GtkWidget *widget)
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{
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GdkWindowAttr attributes;
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gint attributes_mask;
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GtkHandleBox *hb;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
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hb = GTK_HANDLE_BOX (widget);
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GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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attributes.x = widget->allocation.x;
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attributes.y = widget->allocation.y;
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attributes.width = widget->allocation.width;
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attributes.height = widget->allocation.height;
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = (gtk_widget_get_events (widget)
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| GDK_EXPOSURE_MASK);
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
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gdk_window_set_user_data (widget->window, widget);
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attributes.x = 0;
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attributes.y = 0;
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attributes.width = widget->allocation.width;
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attributes.height = widget->allocation.height;
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.event_mask |= (gtk_widget_get_events (widget) |
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GDK_EXPOSURE_MASK |
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GDK_BUTTON1_MOTION_MASK |
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GDK_POINTER_MOTION_HINT_MASK |
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GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK);
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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hb->bin_window = gdk_window_new (widget->window, &attributes, attributes_mask);
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gdk_window_set_user_data (hb->bin_window, widget);
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if (GTK_BIN (hb)->child)
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gtk_widget_set_parent_window (GTK_BIN (hb)->child, hb->bin_window);
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attributes.x = 0;
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attributes.y = 0;
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attributes.width = widget->requisition.width;
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attributes.height = widget->requisition.height;
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attributes.window_type = GDK_WINDOW_TOPLEVEL;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = (gtk_widget_get_events (widget) |
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GDK_KEY_PRESS_MASK |
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GDK_ENTER_NOTIFY_MASK |
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GDK_LEAVE_NOTIFY_MASK |
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GDK_FOCUS_CHANGE_MASK |
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GDK_STRUCTURE_MASK);
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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hb->float_window = gdk_window_new (NULL, &attributes, attributes_mask);
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gdk_window_set_user_data (hb->float_window, widget);
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gdk_window_set_decorations (hb->float_window, 0);
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widget->style = gtk_style_attach (widget->style, widget->window);
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gtk_style_set_background (widget->style, widget->window, GTK_WIDGET_STATE (hb));
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gtk_style_set_background (widget->style, hb->bin_window, GTK_WIDGET_STATE (hb));
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gtk_style_set_background (widget->style, hb->float_window, GTK_WIDGET_STATE (hb));
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gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
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}
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static void
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gtk_handle_box_unrealize (GtkWidget *widget)
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{
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GtkHandleBox *hb;
|
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
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hb = GTK_HANDLE_BOX (widget);
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gdk_window_set_user_data (hb->bin_window, NULL);
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gdk_window_destroy (hb->bin_window);
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hb->bin_window = NULL;
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gdk_window_set_user_data (hb->float_window, NULL);
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gdk_window_destroy (hb->float_window);
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hb->float_window = NULL;
|
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if (GTK_WIDGET_CLASS (parent_class)->unrealize)
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(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
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}
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|
|
static void
|
|
gtk_handle_box_style_set (GtkWidget *widget,
|
|
GtkStyle *previous_style)
|
|
{
|
|
GtkHandleBox *hb;
|
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|
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_HANDLE_BOX (widget));
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hb = GTK_HANDLE_BOX (widget);
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|
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if (GTK_WIDGET_REALIZED (widget) &&
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!GTK_WIDGET_NO_WINDOW (widget))
|
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{
|
|
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)
|
|
{
|
|
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);
|
|
|
|
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 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
|
|
{
|
|
child_requisition.width = 0;
|
|
child_requisition.height = 0;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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 (allocation != NULL);
|
|
|
|
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);
|
|
|
|
|
|
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
|
|
{
|
|
GtkWidget *child;
|
|
GtkAllocation child_allocation;
|
|
guint border_width;
|
|
|
|
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
|
|
{
|
|
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))
|
|
{
|
|
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)
|
|
{
|
|
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))
|
|
{
|
|
if (hb->child_detached)
|
|
{
|
|
/* 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)
|
|
{
|
|
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);
|
|
|
|
if (GTK_WIDGET_DRAWABLE (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 (GDK_ROOT_PARENT(), &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;
|
|
|
|
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));
|
|
}
|