* Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
- * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
-#include "gdkx.h"
+#include "gdkconfig.h"
+
+#include "gdk/gdkkeysyms.h"
#include "gtkdnd.h"
+#include "gtkimage.h"
#include "gtkinvisible.h"
#include "gtkmain.h"
#include "gtksignal.h"
+#include "gtkstock.h"
#include "gtkwindow.h"
static GSList *drag_widgets = NULL;
GdkModifierType start_button_mask;
GtkTargetList *target_list; /* Targets for drag data */
GdkDragAction actions; /* Possible actions */
+
+ /* Drag icon */
+ GtkImageType icon_type;
+ union
+ {
+ GtkImagePixmapData pixmap;
+ GtkImagePixbufData pixbuf;
+ GtkImageStockData stock;
+ } icon_data;
+ GdkBitmap *icon_mask;
+
GdkColormap *colormap; /* Colormap for drag icon */
- GdkPixmap *pixmap; /* Icon for drag data */
- GdkBitmap *mask;
/* Stored button press information to detect drag beginning */
gint state;
static GtkWidget *gtk_drag_get_ipc_widget (void);
static void gtk_drag_release_ipc_widget (GtkWidget *widget);
-static void gtk_drag_highlight_paint (GtkWidget *widget);
static gboolean gtk_drag_highlight_expose (GtkWidget *widget,
GdkEventExpose *event,
gpointer data);
-
-static GdkAtom gtk_drag_dest_find_target (GtkWidget *widget,
- GtkDragDestSite *site,
- GdkDragContext *context);
-static void gtk_drag_selection_received (GtkWidget *widget,
- GtkSelectionData *selection_data,
- guint32 time,
- gpointer data);
-static void gtk_drag_find_widget (GtkWidget *widget,
- GtkDragFindData *data);
-static void gtk_drag_proxy_begin (GtkWidget *widget,
- GtkDragDestInfo *dest_info);
-static void gtk_drag_dest_info_destroy (gpointer data);
-static void gtk_drag_dest_realized (GtkWidget *widget);
-static void gtk_drag_dest_site_destroy (gpointer data);
-static void gtk_drag_dest_leave (GtkWidget *widget,
- GdkDragContext *context,
- guint time);
-static gboolean gtk_drag_dest_motion (GtkWidget *widget,
- GdkDragContext *context,
- gint x,
- gint y,
- guint time);
-static gboolean gtk_drag_dest_drop (GtkWidget *widget,
- GdkDragContext *context,
- gint x,
- gint y,
- guint time);
+static void gtk_drag_selection_received (GtkWidget *widget,
+ GtkSelectionData *selection_data,
+ guint32 time,
+ gpointer data);
+static void gtk_drag_find_widget (GtkWidget *widget,
+ GtkDragFindData *data);
+static void gtk_drag_proxy_begin (GtkWidget *widget,
+ GtkDragDestInfo *dest_info,
+ guint32 time);
+static void gtk_drag_dest_realized (GtkWidget *widget);
+static void gtk_drag_dest_hierarchy_changed (GtkWidget *widget,
+ GtkWidget *previous_toplevel);
+static void gtk_drag_dest_site_destroy (gpointer data);
+static void gtk_drag_dest_leave (GtkWidget *widget,
+ GdkDragContext *context,
+ guint time);
+static gboolean gtk_drag_dest_motion (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time);
+static gboolean gtk_drag_dest_drop (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time);
+
+static GtkDragDestInfo * gtk_drag_get_dest_info (GdkDragContext *context,
+ gboolean create);
+static GtkDragSourceInfo *gtk_drag_get_source_info (GdkDragContext *context,
+ gboolean create);
+static void gtk_drag_clear_source_info (GdkDragContext *context);
static void gtk_drag_source_check_selection (GtkDragSourceInfo *info,
GdkAtom selection,
gpointer data);
static gint gtk_drag_anim_timeout (gpointer data);
static void gtk_drag_remove_icon (GtkDragSourceInfo *info);
-static void gtk_drag_source_info_destroy (gpointer data);
+static void gtk_drag_source_info_destroy (GtkDragSourceInfo *info);
+static void gtk_drag_update (GtkDragSourceInfo *info,
+ gint x_root,
+ gint y_root,
+ GdkEvent *event);
static gint gtk_drag_motion_cb (GtkWidget *widget,
GdkEventMotion *event,
gpointer data);
+static gint gtk_drag_key_cb (GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer data);
static gint gtk_drag_button_release_cb (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
#define action_ask_width 16
#define action_ask_height 16
-static const char action_ask_bits[] = {
+static const guchar action_ask_bits[] = {
0x00, 0x00, 0xfe, 0x7f, 0xfe, 0x1f, 0x06, 0xc0, 0x76, 0xf8, 0xb6, 0xf7,
0xd6, 0xec, 0x66, 0xdb, 0x66, 0xdb, 0x96, 0xec, 0x76, 0xf7, 0x76, 0xfb,
0xf6, 0xfc, 0x72, 0xfb, 0x7a, 0xfb, 0xf8, 0xfc, };
#define action_ask_mask_width 16
#define action_ask_mask_height 16
-static const char action_ask_mask_bits[] = {
+static const guchar action_ask_mask_bits[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0x8f, 0x07, 0xcf, 0x0f,
0xef, 0x1f, 0xff, 0x3c, 0xff, 0x3c, 0x6f, 0x1f, 0x8f, 0x0f, 0x8f, 0x07,
0x0f, 0x03, 0x8f, 0x07, 0x87, 0x07, 0x07, 0x03, };
#define action_copy_width 16
#define action_copy_height 16
-static const char action_copy_bits[] = {
+static const guchar action_copy_bits[] = {
0x00, 0x00, 0xfe, 0x7f, 0xfe, 0x1f, 0x06, 0xc0, 0x76, 0xfb, 0x76, 0xfb,
0x76, 0xfb, 0x06, 0x83, 0xf6, 0xbf, 0xf6, 0xbf, 0x06, 0x83, 0x76, 0xfb,
0x76, 0xfb, 0x72, 0xfb, 0x7a, 0xf8, 0xf8, 0xff, };
#define action_copy_mask_width 16
#define action_copy_mask_height 16
-static const char action_copy_mask_bits[] = {
+static const guchar action_copy_mask_bits[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0x8f, 0x07, 0x8f, 0x07,
0x8f, 0x07, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f, 0x8f, 0x07,
0x8f, 0x07, 0x8f, 0x07, 0x87, 0x07, 0x07, 0x00, };
#define action_move_width 16
#define action_move_height 16
-static const char action_move_bits[] = {
+static const guchar action_move_bits[] = {
0x00, 0x00, 0xfe, 0x7f, 0xfe, 0x1f, 0x06, 0xc0, 0x96, 0xff, 0x26, 0xff,
0xc6, 0xf8, 0xd6, 0xe3, 0x96, 0x8f, 0xb6, 0xbf, 0x36, 0xc3, 0x76, 0xfb,
0x76, 0xfa, 0xf2, 0xfa, 0xfa, 0xf8, 0xf8, 0xff, };
#define action_move_mask_width 16
#define action_move_mask_height 16
-static const char action_move_mask_bits[] = {
+static const guchar action_move_mask_bits[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0x6f, 0x00, 0xff, 0x00,
0xff, 0x07, 0xef, 0x1f, 0xef, 0x7f, 0xcf, 0x7f, 0xcf, 0x3f, 0x8f, 0x07,
0x8f, 0x07, 0x0f, 0x07, 0x07, 0x07, 0x07, 0x00, };
#define action_link_width 16
#define action_link_height 16
-static const char action_link_bits[] = {
+static const guchar action_link_bits[] = {
0x00, 0x00, 0xfe, 0x7f, 0xfe, 0x1f, 0x06, 0xc0, 0x36, 0xf8, 0xd6, 0xf7,
0x66, 0xec, 0xa6, 0xe8, 0x26, 0xdf, 0xe6, 0xbd, 0xd6, 0xa7, 0xb6, 0xa8,
0xb6, 0xb1, 0x72, 0xdf, 0xfa, 0xe0, 0xf8, 0xff, };
#define action_link_mask_width 16
#define action_link_mask_height 16
-static const char action_link_mask_bits[] = {
+static const guchar action_link_mask_bits[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xcf, 0x07, 0xef, 0x0f,
0xff, 0x1f, 0x7f, 0x1f, 0xff, 0x3f, 0xff, 0x7f, 0xef, 0x7f, 0xcf, 0x77,
0xcf, 0x7f, 0x8f, 0x3f, 0x07, 0x1f, 0x07, 0x00, };
#define action_none_width 16
#define action_none_height 16
-static const char action_none_bits[] = {
+static const guchar action_none_bits[] = {
0x00, 0x00, 0xfe, 0x7f, 0xfe, 0x1f, 0x06, 0xc0, 0xf6, 0xff, 0xf6, 0xff,
0xf6, 0xff, 0xf6, 0xff, 0xf6, 0xff, 0xf6, 0xff, 0xf6, 0xff, 0xf6, 0xff,
0xf6, 0xff, 0xf2, 0xff, 0xfa, 0xff, 0xf8, 0xff, };
#define action_none_mask_width 16
#define action_none_mask_height 16
-static const char action_none_mask_bits[] = {
+static const guchar action_none_mask_bits[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0x0f, 0x00, 0x0f, 0x00,
0x0f, 0x00, 0x0f, 0x00, 0x0f, 0x00, 0x0f, 0x00, 0x0f, 0x00, 0x0f, 0x00,
0x0f, 0x00, 0x0f, 0x00, 0x07, 0x00, 0x07, 0x00, };
static const gint n_drag_cursors = sizeof (drag_cursors) / sizeof (drag_cursors[0]);
-/* XPM */
-static const char * drag_default_xpm[] = {
-"32 32 3 1",
-" c None",
-". c #000000",
-"+ c #FFFFFF",
-" ",
-" ",
-" .. ",
-" ..+. ",
-" ..++.. ",
-" ...++++. ",
-" ...++++++.. ",
-" ...+++++++++. ",
-" ...+++++++++++.. ",
-" ..+.++++++++++++.. ",
-" .++.++++++++++++.. ",
-" .+++.++++++++++++.. ",
-" .++++.++++++++++++. ",
-" .+++.+++++++++++++.. ",
-" .++.+++++++++++++++.. ",
-" .+.+++++++++++++++++.. ",
-" ..+++++++++++++++++++.. ",
-" ..++++++++++++++++++++. ",
-" .++++++++++++++++++++.. ",
-" ..+++++++++++++++++.. ",
-" .++++++++++++++++.. ",
-" ..+++++++++++++... ",
-" .++++++++++++.. ",
-" ..+++++++++.. ",
-" .++++++++.. ",
-" ..++++++.. ",
-" .+++++.. ",
-" .++.. ",
-" ... ",
-" .. ",
-" ",
-" "};
-
/*********************
* Utility functions *
*********************/
drag_widgets = g_slist_prepend (drag_widgets, widget);
}
+static guint32
+gtk_drag_get_event_time (GdkEvent *event)
+{
+ guint32 tm = GDK_CURRENT_TIME;
+
+ if (event)
+ switch (event->type)
+ {
+ case GDK_MOTION_NOTIFY:
+ tm = event->motion.time; break;
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ case GDK_BUTTON_RELEASE:
+ tm = event->button.time; break;
+ case GDK_KEY_PRESS:
+ case GDK_KEY_RELEASE:
+ tm = event->key.time; break;
+ case GDK_ENTER_NOTIFY:
+ case GDK_LEAVE_NOTIFY:
+ tm = event->crossing.time; break;
+ case GDK_PROPERTY_NOTIFY:
+ tm = event->property.time; break;
+ case GDK_SELECTION_CLEAR:
+ case GDK_SELECTION_REQUEST:
+ case GDK_SELECTION_NOTIFY:
+ tm = event->selection.time; break;
+ case GDK_PROXIMITY_IN:
+ case GDK_PROXIMITY_OUT:
+ tm = event->proximity.time; break;
+ default: /* use current time */
+ break;
+ }
+
+ return tm;
+}
+
static void
gtk_drag_get_event_actions (GdkEvent *event,
gint button,
default:
break;
}
-
+
if ((button == 2 || button == 3) && (actions & GDK_ACTION_ASK))
{
*suggested_action = GDK_ACTION_ASK;
*suggested_action = GDK_ACTION_LINK;
}
}
+ else
+ {
+ *possible_actions = actions;
+
+ if (actions & GDK_ACTION_COPY)
+ *suggested_action = GDK_ACTION_COPY;
+ else if (actions & GDK_ACTION_MOVE)
+ *suggested_action = GDK_ACTION_MOVE;
+ else if (actions & GDK_ACTION_LINK)
+ *suggested_action = GDK_ACTION_LINK;
+ }
return;
}
time);
}
- if (!del)
+ if (!(success && del))
gdk_drop_finish (context, success, time);
}
/*************************************************************
- * gtk_drag_highlight_paint:
- * Paint a highlight indicating drag status onto the widget.
+ * gtk_drag_highlight_expose:
+ * Callback for expose_event for highlighted widgets.
* arguments:
* widget:
+ * event:
+ * data:
* results:
*************************************************************/
-static void
-gtk_drag_highlight_paint (GtkWidget *widget)
+static gboolean
+gtk_drag_highlight_expose (GtkWidget *widget,
+ GdkEventExpose *event,
+ gpointer data)
{
gint x, y, width, height;
-
- g_return_if_fail (widget != NULL);
-
+
if (GTK_WIDGET_DRAWABLE (widget))
{
if (GTK_WIDGET_NO_WINDOW (widget))
FALSE,
x, y, width - 1, height - 1);
}
-}
-
-/*************************************************************
- * gtk_drag_highlight_expose:
- * Callback for expose_event for highlighted widgets.
- * arguments:
- * widget:
- * event:
- * data:
- * results:
- *************************************************************/
-static gboolean
-gtk_drag_highlight_expose (GtkWidget *widget,
- GdkEventExpose *event,
- gpointer data)
-{
- gtk_drag_highlight_paint (widget);
- return TRUE;
+ return FALSE;
}
/*************************************************************
void
gtk_drag_highlight (GtkWidget *widget)
{
- gtk_signal_connect_after (GTK_OBJECT (widget), "draw",
- GTK_SIGNAL_FUNC (gtk_drag_highlight_paint),
- NULL);
gtk_signal_connect (GTK_OBJECT (widget), "expose_event",
GTK_SIGNAL_FUNC (gtk_drag_highlight_expose),
NULL);
{
g_return_if_fail (widget != NULL);
- gtk_signal_disconnect_by_func (GTK_OBJECT (widget),
- GTK_SIGNAL_FUNC (gtk_drag_highlight_paint),
- NULL);
gtk_signal_disconnect_by_func (GTK_OBJECT (widget),
GTK_SIGNAL_FUNC (gtk_drag_highlight_expose),
NULL);
gtk_widget_queue_clear (widget);
}
+static void
+gtk_drag_dest_set_internal (GtkWidget *widget,
+ GtkDragDestSite *site)
+{
+ GtkDragDestSite *old_site;
+
+ g_return_if_fail (widget != NULL);
+
+ /* HACK, do this in the destroy */
+ old_site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-drag-dest");
+ if (old_site)
+ gtk_signal_disconnect_by_data (GTK_OBJECT (widget), old_site);
+
+ if (GTK_WIDGET_REALIZED (widget))
+ gtk_drag_dest_realized (widget);
+
+ gtk_signal_connect (GTK_OBJECT (widget), "realize",
+ GTK_SIGNAL_FUNC (gtk_drag_dest_realized), site);
+ gtk_signal_connect (GTK_OBJECT (widget), "hierarchy_changed",
+ GTK_SIGNAL_FUNC (gtk_drag_dest_hierarchy_changed), site);
+
+ gtk_object_set_data_full (GTK_OBJECT (widget), "gtk-drag-dest",
+ site, gtk_drag_dest_site_destroy);
+}
+
+
/*************************************************************
* gtk_drag_dest_set:
* Register a drop site, and possibly add default behaviors.
g_return_if_fail (widget != NULL);
- /* HACK, do this in the destroy */
- site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-drag-dest");
- if (site)
- gtk_signal_disconnect_by_data (GTK_OBJECT (widget), site);
-
- if (GTK_WIDGET_REALIZED (widget))
- gtk_drag_dest_realized (widget);
-
- gtk_signal_connect (GTK_OBJECT (widget), "realize",
- GTK_SIGNAL_FUNC (gtk_drag_dest_realized), NULL);
-
site = g_new (GtkDragDestSite, 1);
site->flags = flags;
site->actions = actions;
site->do_proxy = FALSE;
- gtk_object_set_data_full (GTK_OBJECT (widget), "gtk-drag-dest",
- site, gtk_drag_dest_site_destroy);
+ gtk_drag_dest_set_internal (widget, site);
}
/*************************************************************
g_return_if_fail (widget != NULL);
- /* HACK, do this in the destroy */
- site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-drag-dest");
- if (site)
- gtk_signal_disconnect_by_data (GTK_OBJECT (widget), site);
-
- if (GTK_WIDGET_REALIZED (widget))
- gtk_drag_dest_realized (widget);
-
- gtk_signal_connect (GTK_OBJECT (widget), "realize",
- GTK_SIGNAL_FUNC (gtk_drag_dest_realized), NULL);
-
site = g_new (GtkDragDestSite, 1);
site->flags = 0;
site->proxy_protocol = protocol;
site->proxy_coords = use_coordinates;
- gtk_object_set_data_full (GTK_OBJECT (widget), "gtk-drag-dest",
- site, gtk_drag_dest_site_destroy);
+ gtk_drag_dest_set_internal (widget, site);
}
/*************************************************************
gtk_object_set_data (GTK_OBJECT (widget), "gtk-drag-dest", NULL);
}
+/**
+ * gtk_drag_dest_get_target_list:
+ * @widget: a #GtkWidget
+ *
+ * Returns the list of targets this widget can accept from
+ * drag-and-drop.
+ *
+ * Return value: the #GtkTargetList, or %NULL if none
+ **/
+GtkTargetList*
+gtk_drag_dest_get_target_list (GtkWidget *widget)
+{
+ GtkDragDestSite *site;
+
+ site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-drag-dest");
+
+ return site ? site->target_list : NULL;
+}
+
+/**
+ * gtk_drag_dest_set_target_list:
+ * @widget: a #GtkWidget that's a drag destination
+ * @target_list: list of droppable targets, or %NULL for none
+ *
+ * Sets the target types that this widget can accept from drag-and-drop.
+ * The widget must first be made into a drag destination with
+ * gtk_drag_dest_set().
+ **/
+void
+gtk_drag_dest_set_target_list (GtkWidget *widget,
+ GtkTargetList *target_list)
+{
+ GtkDragDestSite *site;
+
+ site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-drag-dest");
+
+ if (site == NULL)
+ {
+ g_warning ("can't set a target list on a widget until you've called gtk_drag_dest_set() to make the widget into a drag destination");
+ return;
+ }
+
+ if (target_list)
+ gtk_target_list_ref (target_list);
+
+ if (site->target_list)
+ gtk_target_list_unref (site->target_list);
+
+ site->target_list = target_list;
+}
+
+
/*************************************************************
- * gtk_drag_dest_handle_event:
+ * _gtk_drag_dest_handle_event:
* Called from widget event handling code on Drag events
* for destinations.
*
*************************************************************/
void
-gtk_drag_dest_handle_event (GtkWidget *toplevel,
+_gtk_drag_dest_handle_event (GtkWidget *toplevel,
GdkEvent *event)
{
GtkDragDestInfo *info;
context = event->dnd.context;
- info = g_dataset_get_data (context, "gtk-info");
- if (!info)
- {
- info = g_new (GtkDragDestInfo, 1);
- info->widget = NULL;
- info->context = event->dnd.context;
- info->proxy_source = NULL;
- info->proxy_data = NULL;
- info->dropped = FALSE;
- info->proxy_drop_wait = FALSE;
- g_dataset_set_data_full (context,
- "gtk-info",
- info,
- gtk_drag_dest_info_destroy);
- }
+ info = gtk_drag_get_dest_info (context, TRUE);
/* Find the widget for the event */
switch (event->type)
gint tx, ty;
if (event->type == GDK_DROP_START)
- info->dropped = TRUE;
+ {
+ info->dropped = TRUE;
+ /* We send a leave here so that the widget unhighlights
+ * properly.
+ */
+ if (info->widget)
+ {
+ gtk_drag_dest_leave (info->widget, context, event->dnd.time);
+ info->widget = NULL;
+ }
+ }
gdk_window_get_origin (toplevel->window, &tx, &ty);
gtk_drag_find_widget (toplevel, &data);
- /* We send a leave here so that the widget unhighlights
- * properly
- */
- if (info->widget &&
- ((event->type == GDK_DROP_START) || (!data.found)))
+ if (info->widget && !data.found)
{
gtk_drag_dest_leave (info->widget, context, event->dnd.time);
info->widget = NULL;
if (!data.found)
gdk_drag_status (context, 0, event->dnd.time);
}
- else if (event->type == GDK_DROP_START)
+ else if (event->type == GDK_DROP_START && !info->proxy_source)
{
gdk_drop_reply (context, data.found, event->dnd.time);
if ((context->protocol == GDK_DRAG_PROTO_MOTIF) && !data.found)
}
}
-/*************************************************************
+/**
* gtk_drag_dest_find_target:
- * Decide on a target for the drag.
- * arguments:
- * site:
- * context:
- * results:
- *************************************************************/
-
-static GdkAtom
-gtk_drag_dest_find_target (GtkWidget *widget,
- GtkDragDestSite *site,
- GdkDragContext *context)
+ * @widget: drag destination widget
+ * @context: drag context
+ * @target_list: list of droppable targets, or %NULL to use
+ * gtk_drag_dest_get_target_list (@widget).
+ *
+ * Looks for a match between @context->targets and the
+ * @dest_target_list, returning the first matching target, otherwise
+ * returning %GDK_NONE. @dest_target_list should usually be the return
+ * value from gtk_drag_dest_get_target_list(), but some widgets may
+ * have different valid targets for different parts of the widget; in
+ * that case, they will have to implement a drag_motion handler that
+ * passes the correct target list to this function.
+ *
+ * Return value: first target that the source offers and the dest can accept, or %GDK_NONE
+ **/
+GdkAtom
+gtk_drag_dest_find_target (GtkWidget *widget,
+ GdkDragContext *context,
+ GtkTargetList *target_list)
{
GList *tmp_target;
GList *tmp_source = NULL;
- GtkWidget *source_widget = gtk_drag_get_source_widget (context);
+ GtkWidget *source_widget;
+
+ g_return_val_if_fail (GTK_IS_WIDGET (widget), GDK_NONE);
+ g_return_val_if_fail (GDK_IS_DRAG_CONTEXT (context), GDK_NONE);
+
+ source_widget = gtk_drag_get_source_widget (context);
- tmp_target = site->target_list->list;
+ if (target_list == NULL)
+ target_list = gtk_drag_dest_get_target_list (widget);
+
+ if (target_list == NULL)
+ return GDK_NONE;
+
+ tmp_target = target_list->list;
while (tmp_target)
{
GtkTargetPair *pair = tmp_target->data;
drop_widget = data;
context = gtk_object_get_data (GTK_OBJECT (widget), "drag-context");
- info = g_dataset_get_data (context, "gtk-info");
+ info = gtk_drag_get_dest_info (context, FALSE);
if (info->proxy_data &&
info->proxy_data->target == selection_data->target)
site = gtk_object_get_data (GTK_OBJECT (drop_widget), "gtk-drag-dest");
- if (site->target_list)
+ if (site && site->target_list)
{
guint target_info;
selection_data, 0, time);
}
- if (site->flags & GTK_DEST_DEFAULT_DROP)
+ if (site && site->flags & GTK_DEST_DEFAULT_DROP)
{
gtk_drag_finish (context,
static void
gtk_drag_proxy_begin (GtkWidget *widget,
- GtkDragDestInfo *dest_info)
+ GtkDragDestInfo *dest_info,
+ guint32 time)
{
GtkDragSourceInfo *source_info;
GList *tmp_list;
+ GdkDragContext *context;
+ GtkWidget *ipc_widget;
+
+ if (dest_info->proxy_source)
+ {
+ gdk_drag_abort (dest_info->proxy_source->context, time);
+ gtk_drag_source_info_destroy (dest_info->proxy_source);
+ dest_info->proxy_source = NULL;
+ }
- source_info = g_new0 (GtkDragSourceInfo, 1);
- source_info->ipc_widget = gtk_drag_get_ipc_widget ();
-
- source_info->widget = widget;
- gtk_widget_ref (source_info->widget);
- source_info->context = gdk_drag_begin (source_info->ipc_widget->window,
- dest_info->context->targets);
+ ipc_widget = gtk_drag_get_ipc_widget ();
+ context = gdk_drag_begin (ipc_widget->window,
+ dest_info->context->targets);
+
+ source_info = gtk_drag_get_source_info (context, TRUE);
+
+ source_info->ipc_widget = ipc_widget;
+ source_info->widget = gtk_widget_ref (widget);
source_info->target_list = gtk_target_list_new (NULL, 0);
tmp_list = dest_info->context->targets;
source_info->proxy_dest = dest_info;
- g_dataset_set_data (source_info->context, "gtk-info", source_info);
-
- gtk_signal_connect (GTK_OBJECT (source_info->ipc_widget),
+ gtk_signal_connect (GTK_OBJECT (ipc_widget),
"selection_get",
GTK_SIGNAL_FUNC (gtk_drag_selection_get),
source_info);
g_free (info);
}
+static GtkDragDestInfo *
+gtk_drag_get_dest_info (GdkDragContext *context,
+ gboolean create)
+{
+ GtkDragDestInfo *info;
+ static GQuark info_quark = 0;
+ if (!info_quark)
+ info_quark = g_quark_from_static_string ("gtk-dest-info");
+
+ info = g_object_get_qdata (G_OBJECT (context), info_quark);
+ if (!info && create)
+ {
+ info = g_new (GtkDragDestInfo, 1);
+ info->widget = NULL;
+ info->context = context;
+ info->proxy_source = NULL;
+ info->proxy_data = NULL;
+ info->dropped = FALSE;
+ info->proxy_drop_wait = FALSE;
+ g_object_set_qdata_full (G_OBJECT (context), info_quark,
+ info, gtk_drag_dest_info_destroy);
+ }
+
+ return info;
+}
+
+static GQuark dest_info_quark = 0;
+
+static GtkDragSourceInfo *
+gtk_drag_get_source_info (GdkDragContext *context,
+ gboolean create)
+{
+ GtkDragSourceInfo *info;
+ if (!dest_info_quark)
+ dest_info_quark = g_quark_from_static_string ("gtk-source-info");
+
+ info = g_object_get_qdata (G_OBJECT (context), dest_info_quark);
+ if (!info && create)
+ {
+ info = g_new0 (GtkDragSourceInfo, 1);
+ info->context = context;
+ g_object_set_qdata (G_OBJECT (context), dest_info_quark, info);
+ }
+
+ return info;
+}
+
+static void
+gtk_drag_clear_source_info (GdkDragContext *context)
+{
+ g_object_set_qdata (G_OBJECT (context), dest_info_quark, NULL);
+}
+
static void
gtk_drag_dest_realized (GtkWidget *widget)
{
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
- gdk_window_register_dnd (toplevel->window);
+
+ if (GTK_WIDGET_TOPLEVEL (toplevel))
+ gdk_window_register_dnd (toplevel->window);
+}
+
+static void
+gtk_drag_dest_hierarchy_changed (GtkWidget *widget,
+ GtkWidget *previous_toplevel)
+{
+ GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
+
+ if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_WIDGET_REALIZED (toplevel))
+ gdk_window_register_dnd (toplevel->window);
}
static void
if (site->do_proxy)
{
- GtkDragDestInfo *info = g_dataset_get_data (context, "gtk-info");
+ GtkDragDestInfo *info = gtk_drag_get_dest_info (context, FALSE);
- if (info->proxy_source && !info->dropped)
- gdk_drag_abort (info->proxy_source->context, time);
+ if (info->proxy_source && info->proxy_source->widget == widget && !info->dropped)
+ {
+ gdk_drag_abort (info->proxy_source->context, time);
+ gtk_drag_source_info_destroy (info->proxy_source);
+ info->proxy_source = NULL;
+ }
return;
}
else
{
- if (site->flags & GTK_DEST_DEFAULT_HIGHLIGHT)
+ if ((site->flags & GTK_DEST_DEFAULT_HIGHLIGHT) && site->have_drag)
gtk_drag_unhighlight (widget);
if (!(site->flags & GTK_DEST_DEFAULT_MOTION) || site->have_drag)
GdkWindow *dest_window;
GdkDragProtocol proto;
- GtkDragDestInfo *info = g_dataset_get_data (context, "gtk-info");
+ GtkDragDestInfo *info = gtk_drag_get_dest_info (context, FALSE);
- if (!info->proxy_source)
- gtk_drag_proxy_begin (widget, info);
+ if (!info->proxy_source || info->proxy_source->widget != widget)
+ gtk_drag_proxy_begin (widget, info, time);
current_event = gtk_get_current_event ();
}
}
- if (action && gtk_drag_dest_find_target (widget, site, context))
+ if (action && gtk_drag_dest_find_target (widget, context, NULL))
{
if (!site->have_drag)
{
site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-drag-dest");
g_return_val_if_fail (site != NULL, FALSE);
- info = g_dataset_get_data (context, "gtk-info");
+ info = gtk_drag_get_dest_info (context, FALSE);
g_return_val_if_fail (info != NULL, FALSE);
info->drop_x = x;
GdkWindow *dest_window;
GdkDragProtocol proto;
- gtk_drag_proxy_begin (widget, info);
+ gtk_drag_proxy_begin (widget, info, time);
info->proxy_drop_wait = TRUE;
info->proxy_drop_time = time;
gtk_drag_source_check_selection (info->proxy_source, selection, time);
gdk_event_free (current_event);
-
}
return TRUE;
if (site->flags & GTK_DEST_DEFAULT_DROP)
{
- GdkAtom target = gtk_drag_dest_find_target (widget, site, context);
+ GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
if (target == GDK_NONE)
- return FALSE;
-
- gtk_drag_get_data (widget, context, target, time);
+ {
+ gtk_drag_finish (context, FALSE, FALSE, time);
+ return TRUE;
+ }
+ else
+ gtk_drag_get_data (widget, context, target, time);
}
gtk_signal_emit_by_name (GTK_OBJECT (widget), "drag_drop",
GList *tmp_list;
guint32 time = GDK_CURRENT_TIME;
GdkDragAction possible_actions, suggested_action;
+ GdkDragContext *context;
+ GtkWidget *ipc_widget;
g_return_val_if_fail (widget != NULL, NULL);
g_return_val_if_fail (GTK_WIDGET_REALIZED (widget), NULL);
if (event)
time = gdk_event_get_time (event);
- info = g_new0 (GtkDragSourceInfo, 1);
- info->ipc_widget = gtk_drag_get_ipc_widget ();
- source_widgets = g_slist_prepend (source_widgets, info->ipc_widget);
-
- gtk_object_set_data (GTK_OBJECT (info->ipc_widget), "gtk-info", info);
-
tmp_list = g_list_last (target_list->list);
while (tmp_list)
{
tmp_list = tmp_list->prev;
}
- info->widget = widget;
- gtk_widget_ref (info->widget);
-
- info->context = gdk_drag_begin (info->ipc_widget->window, targets);
+ ipc_widget = gtk_drag_get_ipc_widget ();
+ source_widgets = g_slist_prepend (source_widgets, ipc_widget);
+
+ context = gdk_drag_begin (ipc_widget->window, targets);
g_list_free (targets);
- g_dataset_set_data (info->context, "gtk-info", info);
+ info = gtk_drag_get_source_info (context, TRUE);
+
+ info->ipc_widget = ipc_widget;
+ gtk_object_set_data (GTK_OBJECT (info->ipc_widget), "gtk-info", info);
+ info->widget = gtk_widget_ref (widget);
+
+
info->button = button;
info->target_list = target_list;
gtk_target_list_ref (target_list);
gtk_drag_get_event_actions (event, info->button, actions,
&suggested_action, &possible_actions);
-
- if (event)
- info->cursor = gtk_drag_get_cursor (suggested_action);
+
+ info->cursor = gtk_drag_get_cursor (suggested_action);
/* Set cur_x, cur_y here so if the "drag_begin" signal shows
* the drag icon, it will be in the right place
*/
- if (event->type == GDK_MOTION_NOTIFY)
+ if (event && event->type == GDK_MOTION_NOTIFY)
{
info->cur_x = event->motion.x_root;
info->cur_y = event->motion.y_root;
gtk_signal_emit_by_name (GTK_OBJECT (widget), "drag_begin",
info->context);
- /* We use a GTK grab here to override any grabs that the widget
- * we are dragging from might have held
- */
-
- gtk_grab_add (info->ipc_widget);
- gdk_pointer_grab (info->ipc_widget->window, FALSE,
- GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
- GDK_BUTTON_RELEASE_MASK, NULL,
- info->cursor, time);
-
- if (event->type == GDK_MOTION_NOTIFY)
+ if (event && event->type == GDK_MOTION_NOTIFY)
gtk_drag_motion_cb (info->ipc_widget, (GdkEventMotion *)event, info);
info->start_x = info->cur_x;
GTK_SIGNAL_FUNC (gtk_drag_button_release_cb), info);
gtk_signal_connect (GTK_OBJECT (info->ipc_widget), "motion_notify_event",
GTK_SIGNAL_FUNC (gtk_drag_motion_cb), info);
+ gtk_signal_connect (GTK_OBJECT (info->ipc_widget), "key_press_event",
+ GTK_SIGNAL_FUNC (gtk_drag_key_cb), info);
+ gtk_signal_connect (GTK_OBJECT (info->ipc_widget), "key_release_event",
+ GTK_SIGNAL_FUNC (gtk_drag_key_cb), info);
gtk_signal_connect (GTK_OBJECT (info->ipc_widget), "selection_get",
GTK_SIGNAL_FUNC (gtk_drag_selection_get), info);
+ /* We use a GTK grab here to override any grabs that the widget
+ * we are dragging from might have held
+ */
+ gtk_grab_add (info->ipc_widget);
+ if (gdk_pointer_grab (info->ipc_widget->window, FALSE,
+ GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
+ GDK_BUTTON_RELEASE_MASK, NULL,
+ info->cursor, time) == 0)
+ {
+ if (gdk_keyboard_grab (info->ipc_widget->window, FALSE, time) != 0)
+ {
+ /* FIXME: This should be cleaned up... */
+ GdkEventButton ev;
+
+ ev.time = time;
+ ev.type = GDK_BUTTON_RELEASE;
+ ev.button = info->button;
+
+ gtk_drag_button_release_cb (widget, &ev, info);
+
+ return NULL;
+ }
+ }
+
return info->context;
}
else
{
site = g_new0 (GtkDragSourceSite, 1);
+
+ site->icon_type = GTK_IMAGE_EMPTY;
gtk_signal_connect (GTK_OBJECT (widget), "button_press_event",
GTK_SIGNAL_FUNC (gtk_drag_source_event_cb),
}
}
-/*************************************************************
- * gtk_drag_source_set_icon:
- * Set an icon for drags from this source.
- * arguments:
- * colormap: Colormap for this icon
- * pixmap:
- * mask
- * results:
- *************************************************************/
+static void
+gtk_drag_source_unset_icon (GtkDragSourceSite *site)
+{
+ switch (site->icon_type)
+ {
+ case GTK_IMAGE_EMPTY:
+ break;
+ case GTK_IMAGE_PIXMAP:
+ if (site->icon_data.pixmap.pixmap)
+ gdk_pixmap_unref (site->icon_data.pixmap.pixmap);
+ if (site->icon_mask)
+ gdk_pixmap_unref (site->icon_mask);
+ break;
+ case GTK_IMAGE_PIXBUF:
+ g_object_unref (G_OBJECT (site->icon_data.pixbuf.pixbuf));
+ break;
+ case GTK_IMAGE_STOCK:
+ g_free (G_OBJECT (site->icon_data.stock.stock_id));
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
+ site->icon_type = GTK_IMAGE_EMPTY;
+
+ if (site->colormap)
+ gdk_colormap_unref (site->colormap);
+ site->colormap = NULL;
+}
+/**
+ * gtk_drag_source_set_icon:
+ * @widget: a #GtkWidget
+ * @colormap: the colormap of the icon
+ * @pixmap: the image data for the icon
+ * @mask: the transparency mask for an image.
+ *
+ * Sets the icon that will be used for drags from a particular widget
+ * from a pixmap/mask. GTK+ retains a reference count for the
+ * arguments, and will release them when they are no longer needed.
+ * Use gtk_drag_source_set_icon_pixbuf() instead.
+ **/
void
gtk_drag_source_set_icon (GtkWidget *widget,
GdkColormap *colormap,
GtkDragSourceSite *site;
g_return_if_fail (widget != NULL);
+ g_return_if_fail (GDK_IS_COLORMAP (colormap));
+ g_return_if_fail (GDK_IS_PIXMAP (pixmap));
+ g_return_if_fail (!mask || GDK_IS_PIXMAP (mask));
site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
g_return_if_fail (site != NULL);
- if (site->colormap)
- gdk_colormap_unref (site->colormap);
- if (site->pixmap)
- gdk_pixmap_unref (site->pixmap);
- if (site->mask)
- gdk_pixmap_unref (site->mask);
-
- site->colormap = colormap;
- if (colormap)
- gdk_colormap_ref (colormap);
-
- site->pixmap = pixmap;
- if (pixmap)
- gdk_pixmap_ref (pixmap);
-
- site->mask = mask;
+ gdk_colormap_ref (colormap);
+ gdk_pixmap_ref (pixmap);
if (mask)
gdk_pixmap_ref (mask);
-}
-/*************************************************************
- * gtk_drag_set_icon_window:
- * Set a widget as the icon for a drag.
- * arguments:
- * context:
- * widget:
- * hot_x: Hot spot
- * hot_y:
- * results:
- *************************************************************/
+ gtk_drag_source_unset_icon (site);
+
+ site->icon_type = GTK_IMAGE_PIXMAP;
+
+ site->icon_data.pixmap.pixmap = pixmap;
+ site->icon_mask = mask;
+ site->colormap = colormap;
+}
+
+/**
+ * gtk_drag_source_set_icon_pixbuf:
+ * @widget: a #GtkWidget
+ * @pixbuf: the #GdkPixbuf for the drag icon
+ *
+ * Sets the icon that will be used for drags from a particular widget
+ * from a #GdkPixbuf. GTK+ retains a reference count @pixbuf.
+ * and will release it when it is no longer needed.
+ **/
+void
+gtk_drag_source_set_icon_pixbuf (GtkWidget *widget,
+ GdkPixbuf *pixbuf)
+{
+ GtkDragSourceSite *site;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
+
+ site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
+ g_return_if_fail (site != NULL);
+
+ gdk_pixbuf_ref (pixbuf);
+
+ gtk_drag_source_unset_icon (site);
+
+ site->icon_type = GTK_IMAGE_PIXBUF;
+ site->icon_data.pixbuf.pixbuf = pixbuf;
+}
+
+/**
+ * gtk_drag_source_set_icon_stock:
+ * @widget: a #GtkWidget
+ * @stock: the ID of the stock icon to use..
+ * @size: size at which to render the stock icon
+ *
+ * Sets the icon that will be used for drags from a particular to
+ * a stock icon.
+ **/
+void
+gtk_drag_source_set_icon_stock (GtkWidget *widget,
+ const gchar *stock_id)
+{
+ GtkDragSourceSite *site;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (stock_id != NULL);
+
+ site = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
+ g_return_if_fail (site != NULL);
+
+ gtk_drag_source_unset_icon (site);
+
+ site->icon_data.stock.stock_id = g_strdup (stock_id);
+}
static void
gtk_drag_set_icon_window (GdkDragContext *context,
g_return_if_fail (context != NULL);
g_return_if_fail (widget != NULL);
- info = g_dataset_get_data (context, "gtk-info");
+ info = gtk_drag_get_source_info (context, FALSE);
gtk_drag_remove_icon (info);
info->icon_window = widget;
info->destroy_icon = destroy_on_release;
}
-/*************************************************************
+/**
* gtk_drag_set_icon_widget:
- * Set a widget as the icon for a drag.
- * arguments:
- * context:
- * widget:
- * hot_x: Hot spot
- * hot_y:
- * results:
- *************************************************************/
-
+ * @context: the context for a drag. (This must be called
+ with a context for the source side of a drag)
+ * @widget: a toplevel window to use as an icon.
+ * @hot_x: the X offset within @widget of the hotspot.
+ * @hot_y: the Y offset within @widget of the hotspot.
+ *
+ * Changes the icon for a widget to a given widget. GTK+
+ * will not destroy the icon, so if you don't want
+ * it to persist, you should connect to the "drag_end"
+ * signal and destroy it yourself.
+ **/
void
gtk_drag_set_icon_widget (GdkDragContext *context,
GtkWidget *widget,
gtk_drag_set_icon_window (context, widget, hot_x, hot_y, FALSE);
}
-/*************************************************************
- * gtk_drag_set_icon_pixmap:
- * Set a widget as the icon for a drag.
- * arguments:
- * context:
- * colormap: Colormap for the icon window.
- * pixmap:
- * mask:
- * hot_x: Hot spot
- * hot_y:
- * results:
- *************************************************************/
+static void
+set_icon_stock_pixbuf (GdkDragContext *context,
+ const gchar *stock_id,
+ GdkPixbuf *pixbuf,
+ gint hot_x,
+ gint hot_y)
+{
+ GtkWidget *window;
+ gint width, height;
+ GdkPixmap *pixmap;
+ GdkPixmap *mask;
+
+ g_return_if_fail (context != NULL);
+ g_return_if_fail (pixbuf != NULL || stock_id != NULL);
+ g_return_if_fail (pixbuf == NULL || stock_id == NULL);
+
+ gtk_widget_push_colormap (gdk_rgb_get_colormap ());
+ window = gtk_window_new (GTK_WINDOW_POPUP);
+ gtk_widget_pop_colormap ();
+
+ gtk_widget_set_events (window, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
+ gtk_widget_set_app_paintable (GTK_WIDGET (window), TRUE);
+
+ if (stock_id)
+ {
+ pixbuf = gtk_widget_render_icon (window, stock_id,
+ GTK_ICON_SIZE_DND, NULL);
+
+ if (!pixbuf)
+ {
+ g_warning ("Cannot load drag icon from stock_id %s", stock_id);
+ gtk_widget_destroy (window);
+ return;
+ }
+
+ }
+
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_width (pixbuf);
+
+ gtk_widget_set_usize (window,
+ gdk_pixbuf_get_width (pixbuf),
+ gdk_pixbuf_get_height (pixbuf));
+ gtk_widget_realize (window);
+
+ gdk_pixbuf_render_pixmap_and_mask (pixbuf, &pixmap, &mask, 128);
+
+ gdk_window_set_back_pixmap (window->window, pixmap, FALSE);
+
+ if (mask)
+ gtk_widget_shape_combine_mask (window, mask, 0, 0);
+ g_object_unref (G_OBJECT (pixmap));
+ g_object_unref (G_OBJECT (mask));
+
+ gtk_drag_set_icon_window (context, window, hot_x, hot_y, TRUE);
+}
+
+/**
+ * gtk_drag_set_icon_pixbuf:
+ * @context: the context for a drag. (This must be called
+ * with a context for the source side of a drag)
+ * @pixbuf: the #GdkPixbuf to use as the drag icon.
+ * @hot_x: the X offset within @widget of the hotspot.
+ * @hot_y: the Y offset within @widget of the hotspot.
+ *
+ * Sets @pixbuf as the icon for a given drag.
+ **/
+void
+gtk_drag_set_icon_pixbuf (GdkDragContext *context,
+ GdkPixbuf *pixbuf,
+ gint hot_x,
+ gint hot_y)
+{
+ g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+ g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
+
+ set_icon_stock_pixbuf (context, NULL, pixbuf, hot_x, hot_y);
+}
+
+/**
+ * gtk_drag_set_icon_pixbuf:
+ * @context: the context for a drag. (This must be called
+ * with a context for the source side of a drag)
+ * @stock: the ID of the stock icon to use for the drag.
+ * @hot_x: the X offset within the icon of the hotspot.
+ * @hot_y: the Y offset within the icon of the hotspot.
+ *
+ * Sets the the icon for a given drag from a stock ID.
+ **/
+void
+gtk_drag_set_icon_stock (GdkDragContext *context,
+ const gchar *stock_id,
+ gint hot_x,
+ gint hot_y)
+{
+ g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+ g_return_if_fail (stock_id != NULL);
+
+ set_icon_stock_pixbuf (context, stock_id, NULL, hot_x, hot_y);
+}
+
+/**
+ * gtk_drag_set_icon_pixmap:
+ * @context: the context for a drag. (This must be called
+ * with a context for the source side of a drag)
+ * @colormap: the colormap of the icon
+ * @pixmap: the image data for the icon
+ * @mask: the transparency mask for the icon
+ * @hot_x: the X offset within @pixmap of the hotspot.
+ * @hot_y: the Y offset within @pixmap of the hotspot.
+ *
+ * Sets @pixmap as the icon for a given drag. GTK+ retains a
+ * reference count for the arguments, and will release them when
+ * they are no longer needed. In general, gtk_drag_set_icon_pixbuf()
+ * will be more convenient to use.
+ **/
void
gtk_drag_set_icon_pixmap (GdkDragContext *context,
GdkColormap *colormap,
gdk_window_get_size (pixmap, &width, &height);
- gtk_widget_push_visual (gdk_colormap_get_visual (colormap));
gtk_widget_push_colormap (colormap);
window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_widget_set_events (window, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
gtk_widget_set_app_paintable (GTK_WIDGET (window), TRUE);
- gtk_widget_pop_visual ();
gtk_widget_pop_colormap ();
gtk_widget_set_usize (window, width, height);
gtk_drag_set_icon_window (context, window, hot_x, hot_y, TRUE);
}
-/*************************************************************
+/**
* gtk_drag_set_icon_default:
- * Set the icon for a drag to the default icon.
- * arguments:
- * context:
- * results:
- *************************************************************/
-
+ * @context: the context for a drag. (This must be called
+ with a context for the source side of a drag)
+ *
+ * Sets the icon for a particular drag to the default
+ * icon.
+ **/
void
gtk_drag_set_icon_default (GdkDragContext *context)
{
g_return_if_fail (context != NULL);
if (!default_icon_pixmap)
- {
- default_icon_colormap = gdk_colormap_get_system ();
- default_icon_pixmap =
- gdk_pixmap_colormap_create_from_xpm_d (NULL,
- default_icon_colormap,
- &default_icon_mask,
- NULL, drag_default_xpm);
- default_icon_hot_x = -2;
- default_icon_hot_y = -2;
- }
-
- gtk_drag_set_icon_pixmap (context,
- default_icon_colormap,
- default_icon_pixmap,
- default_icon_mask,
- default_icon_hot_x,
- default_icon_hot_y);
+ gtk_drag_set_icon_stock (context, GTK_STOCK_DND, -2, -2);
+ else
+ gtk_drag_set_icon_pixmap (context,
+ default_icon_colormap,
+ default_icon_pixmap,
+ default_icon_mask,
+ default_icon_hot_x,
+ default_icon_hot_y);
}
-/*************************************************************
+/**
* gtk_drag_set_default_icon:
- * Set a default icon for all drags as a pixmap.
- * arguments:
- * colormap: Colormap for the icon window.
- * pixmap:
- * mask:
- * hot_x: Hot spot
- * hot_y:
- * results:
- *************************************************************/
-
+ * @colormap: the colormap of the icon
+ * @pixmap: the image data for the icon
+ * @mask: the transparency mask for an image.
+ * @hot_x: The X offset within @widget of the hotspot.
+ * @hot_y: The Y offset within @widget of the hotspot.
+ *
+ * Changes the default drag icon. GTK+ retains a reference count for the
+ * arguments, and will release them when they are no longer needed.
+ * This function is obsolete. The default icon should now be changed
+ * via the stock system by changing the stock pixbuf for GTK_STOCK_DND.
+ **/
void
gtk_drag_set_default_icon (GdkColormap *colormap,
GdkPixmap *pixmap,
if (default_icon_pixmap)
gdk_pixmap_unref (default_icon_pixmap);
if (default_icon_mask)
- gdk_pixmap_unref (default_icon_pixmap);
+ gdk_pixmap_unref (default_icon_mask);
default_icon_colormap = colormap;
gdk_colormap_ref (colormap);
/*************************************************************
- * gtk_drag_source_handle_event:
+ * _gtk_drag_source_handle_event:
* Called from widget event handling code on Drag events
* for drag sources.
*
*************************************************************/
void
-gtk_drag_source_handle_event (GtkWidget *widget,
- GdkEvent *event)
+_gtk_drag_source_handle_event (GtkWidget *widget,
+ GdkEvent *event)
{
GtkDragSourceInfo *info;
GdkDragContext *context;
g_return_if_fail (event != NULL);
context = event->dnd.context;
- info = g_dataset_get_data (context, "gtk-info");
+ info = gtk_drag_get_source_info (context, FALSE);
if (!info)
return;
{
if (info->proxy_dest->proxy_drop_wait)
{
+ gboolean result = context->action != 0;
+
/* Aha - we can finally pass the MOTIF DROP on... */
- gdk_drag_drop (info->context, info->proxy_dest->proxy_drop_time);
+ gdk_drop_reply (info->proxy_dest->context, result, info->proxy_dest->proxy_drop_time);
+ if (result)
+ gdk_drag_drop (info->context, info->proxy_dest->proxy_drop_time);
+ else
+ gtk_drag_finish (info->proxy_dest->context, FALSE, FALSE, info->proxy_dest->proxy_drop_time);
}
else
{
cursor = gtk_drag_get_cursor (event->dnd.context->action);
if (info->cursor != cursor)
{
-#if GDK_WINDOWING == GDK_WINDOWING_X11
- XChangeActivePointerGrab (GDK_WINDOW_XDISPLAY (widget->window),
- PointerMotionMask | PointerMotionHintMask | ButtonReleaseMask,
- ((GdkCursorPrivate *)cursor)->xcursor,
- event->dnd.time);
-#elif GDK_WINDOWING == GDK_WINDOWING_WIN32
gdk_pointer_grab (widget->window, FALSE,
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL,
- info->cursor, event->dnd.time);
-#endif
+ cursor, event->dnd.time);
info->cursor = cursor;
}
if (info->last_event)
{
- gtk_drag_motion_cb (info->widget,
- (GdkEventMotion *)info->last_event,
- info);
+ gtk_drag_update (info,
+ info->cur_x, info->cur_y,
+ info->last_event);
info->last_event = NULL;
}
}
/* Mark the context as dead, so if the destination decides
* to respond really late, we still are OK.
*/
- g_dataset_set_data (info->context, "gtk-info", NULL);
+ gtk_drag_clear_source_info (info->context);
gtk_timeout_add (ANIM_STEP_TIME, gtk_drag_anim_timeout, anim);
}
}
gpointer data)
{
GtkDragSourceSite *site;
+ gboolean retval = FALSE;
site = (GtkDragSourceSite *)data;
switch (event->type)
case GDK_BUTTON_RELEASE:
if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask)
- {
- site->state &= ~(GDK_BUTTON1_MASK << (event->button.button - 1));
- }
+ site->state &= ~(GDK_BUTTON1_MASK << (event->button.button - 1));
break;
case GDK_MOTION_NOTIFY:
GDK_BUTTON1_MASK << (i - 1))
break;
}
-
- if (MAX (ABS (site->x - event->motion.x),
- ABS (site->y - event->motion.y)) > 3)
+
+ if (gtk_drag_check_threshold (widget, site->x, site->y,
+ event->motion.x, event->motion.y))
{
GtkDragSourceInfo *info;
GdkDragContext *context;
site->actions,
i, event);
-
- info = g_dataset_get_data (context, "gtk-info");
+ info = gtk_drag_get_source_info (context, FALSE);
if (!info->icon_window)
{
- if (site->pixmap)
- gtk_drag_set_icon_pixmap (context,
- site->colormap,
- site->pixmap,
- site->mask, -2, -2);
- else
- gtk_drag_set_icon_default (context);
+ switch (site->icon_type)
+ {
+ case GTK_IMAGE_EMPTY:
+ gtk_drag_set_icon_default (context);
+ break;
+ case GTK_IMAGE_PIXMAP:
+ gtk_drag_set_icon_pixmap (context,
+ site->colormap,
+ site->icon_data.pixmap.pixmap,
+ site->icon_mask,
+ -2, -2);
+ break;
+ case GTK_IMAGE_PIXBUF:
+ gtk_drag_set_icon_pixbuf (context,
+ site->icon_data.pixbuf.pixbuf,
+ -2, -2);
+ break;
+ case GTK_IMAGE_STOCK:
+ gtk_drag_set_icon_stock (context,
+ site->icon_data.stock.stock_id,
+ -2, -2);
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
}
- return TRUE;
+ retval = TRUE;
}
}
break;
default: /* hit for 2/3BUTTON_PRESS */
break;
}
- return FALSE;
+
+ return retval;
}
static void
if (site->target_list)
gtk_target_list_unref (site->target_list);
- if (site->pixmap)
- gdk_pixmap_unref (site->pixmap);
-
- if (site->mask)
- gdk_pixmap_unref (site->mask);
-
+ gtk_drag_source_unset_icon (site);
g_free (site);
}
}
static void
-gtk_drag_source_info_destroy (gpointer data)
+gtk_drag_source_info_destroy (GtkDragSourceInfo *info)
{
- GtkDragSourceInfo *info = data;
-
- gtk_drag_remove_icon (data);
+ gtk_drag_remove_icon (info);
if (!info->proxy_dest)
gtk_signal_emit_by_name (GTK_OBJECT (info->widget), "drag_end",
gtk_target_list_unref (info->target_list);
- g_dataset_set_data (info->context, "gtk-info", NULL);
+ gtk_drag_clear_source_info (info->context);
gdk_drag_context_unref (info->context);
if (info->drop_timeout)
}
/*************************************************************
- * gtk_drag_motion_cb:
- * "motion_notify_event" callback during drag.
+ * gtk_drag_update:
+ * Function to update the status of the drag when the
+ * cursor moves or the modifier changes
* arguments:
- *
+ * info: DragSourceInfo for the drag
+ * x_root, y_root: position of darg
+ * event: The event that triggered this call
* results:
*************************************************************/
-static gint
-gtk_drag_motion_cb (GtkWidget *widget,
- GdkEventMotion *event,
- gpointer data)
+static void
+gtk_drag_update (GtkDragSourceInfo *info,
+ gint x_root,
+ gint y_root,
+ GdkEvent *event)
{
- GtkDragSourceInfo *info = (GtkDragSourceInfo *)data;
- GdkAtom selection;
GdkDragAction action;
GdkDragAction possible_actions;
GdkWindow *window = NULL;
GdkWindow *dest_window;
GdkDragProtocol protocol;
- gint x_root, y_root;
-
- if (event->is_hint)
- {
- gdk_window_get_pointer (GDK_ROOT_PARENT(), &x_root, &y_root, NULL);
- event->x_root = x_root;
- event->y_root = y_root;
- }
+ GdkAtom selection;
+ guint32 time = gtk_drag_get_event_time (event);
- gtk_drag_get_event_actions ((GdkEvent *)event,
+ gtk_drag_get_event_actions (event,
info->button,
info->possible_actions,
&action, &possible_actions);
-
- info->cur_x = event->x_root;
- info->cur_y = event->y_root;
+ info->cur_x = x_root;
+ info->cur_y = y_root;
if (info->icon_window)
{
}
gdk_drag_find_window (info->context,
- window, event->x_root, event->y_root,
+ window, x_root, y_root,
&dest_window, &protocol);
-
+
if (gdk_drag_motion (info->context, dest_window, protocol,
- event->x_root, event->y_root, action,
+ x_root, y_root, action,
possible_actions,
- event->time))
+ time))
+ {
+ if (info->last_event != event) /* Paranoia, should not happen */
+ {
+ if (info->last_event)
+ gdk_event_free ((GdkEvent *)info->last_event);
+ info->last_event = gdk_event_copy ((GdkEvent *)event);
+ }
+ }
+ else
{
if (info->last_event)
- gdk_event_free ((GdkEvent *)info->last_event);
-
- info->last_event = gdk_event_copy ((GdkEvent *)event);
+ {
+ gdk_event_free ((GdkEvent *)info->last_event);
+ info->last_event = NULL;
+ }
}
-
+
if (dest_window)
gdk_window_unref (dest_window);
selection = gdk_drag_get_selection (info->context);
if (selection)
- gtk_drag_source_check_selection (info, selection, event->time);
-
-#if 0
- /* We ignore the response, so we can respond precisely to the drop
- */
- if (event->is_hint)
- gdk_window_get_pointer (widget->window, NULL, NULL, NULL);
-#endif
-
- return TRUE;
+ gtk_drag_source_check_selection (info, selection, time);
}
/*************************************************************
- * gtk_drag_motion_cb:
- * "button_release_event" callback during drag.
+ * gtk_drag_end:
+ * Called when the user finishes to drag, either by
+ * releasing the mouse, or by pressing Esc.
* arguments:
- *
+ * widget: GtkInvisible widget for this drag
+ * info:
* results:
*************************************************************/
-static gint
-gtk_drag_button_release_cb (GtkWidget *widget,
- GdkEventButton *event,
- gpointer data)
+static void
+gtk_drag_end (GtkDragSourceInfo *info, guint32 time)
{
- GtkDragSourceInfo *info = (GtkDragSourceInfo *)data;
- GtkWidget *source_widget = info->widget;
GdkEvent send_event;
+ GtkWidget *source_widget = info->widget;
- gtk_widget_ref (source_widget);
-
- if (event->button != info->button)
- return FALSE;
+ gdk_pointer_ungrab (time);
+ gdk_keyboard_ungrab (time);
- gdk_pointer_ungrab (event->time);
+ gtk_grab_remove (info->ipc_widget);
- gtk_grab_remove (widget);
- gtk_signal_disconnect_by_func (GTK_OBJECT (widget),
+ gtk_signal_disconnect_by_func (GTK_OBJECT (info->ipc_widget),
GTK_SIGNAL_FUNC (gtk_drag_button_release_cb),
info);
- gtk_signal_disconnect_by_func (GTK_OBJECT (widget),
+ gtk_signal_disconnect_by_func (GTK_OBJECT (info->ipc_widget),
GTK_SIGNAL_FUNC (gtk_drag_motion_cb),
info);
- if ((info->context->action != 0) && (info->context->dest_window != NULL))
- {
- gtk_drag_drop (info, event->time);
- }
- else
- {
- gdk_drag_abort (info->context, event->time);
- gtk_drag_drop_finished (info, FALSE, event->time);
- }
-
/* Send on a release pair to the the original
* widget to convince it to release its grab. We need to
* call gtk_propagate_event() here, instead of
send_event.button.type = GDK_BUTTON_RELEASE;
send_event.button.window = GDK_ROOT_PARENT ();
send_event.button.send_event = TRUE;
- send_event.button.time = event->time;
+ send_event.button.time = time;
send_event.button.x = 0;
send_event.button.y = 0;
- send_event.button.pressure = 0.;
- send_event.button.xtilt = 0.;
- send_event.button.ytilt = 0.;
- send_event.button.state = event->state;
- send_event.button.button = event->button;
- send_event.button.source = GDK_SOURCE_PEN;
- send_event.button.deviceid = GDK_CORE_POINTER;
+ send_event.button.axes = NULL;
+ send_event.button.state = 0;
+ send_event.button.button = info->button;
+ send_event.button.device = gdk_device_get_core_pointer ();
send_event.button.x_root = 0;
send_event.button.y_root = 0;
gtk_propagate_event (source_widget, &send_event);
+}
+
+/*************************************************************
+ * gtk_drag_motion_cb:
+ * "motion_notify_event" callback during drag.
+ * arguments:
+ *
+ * results:
+ *************************************************************/
+
+static gint
+gtk_drag_motion_cb (GtkWidget *widget,
+ GdkEventMotion *event,
+ gpointer data)
+{
+ GtkDragSourceInfo *info = (GtkDragSourceInfo *)data;
+ gint x_root, y_root;
+
+ if (event->is_hint)
+ {
+ gdk_window_get_pointer (GDK_ROOT_PARENT(), &x_root, &y_root, NULL);
+ event->x_root = x_root;
+ event->y_root = y_root;
+ }
- gtk_widget_unref (source_widget);
+ gtk_drag_update (info, event->x_root, event->y_root, (GdkEvent *)event);
+
+ return TRUE;
+}
+
+/*************************************************************
+ * gtk_drag_key_cb:
+ * "key_press/release_event" callback during drag.
+ * arguments:
+ *
+ * results:
+ *************************************************************/
+
+static gint
+gtk_drag_key_cb (GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer data)
+{
+ GtkDragSourceInfo *info = (GtkDragSourceInfo *)data;
+ GdkModifierType state;
+ if (event->type == GDK_KEY_PRESS)
+ {
+ if (event->keyval == GDK_Escape)
+ {
+ gtk_drag_end (info, event->time);
+ gdk_drag_abort (info->context, event->time);
+ gtk_drag_drop_finished (info, FALSE, event->time);
+
+ return TRUE;
+ }
+ }
+
+ /* Now send a "motion" so that the modifier state is updated */
+
+ /* The state is not yet updated in the event, so we need
+ * to query it here. We could use XGetModifierMapping, but
+ * that would be overkill.
+ */
+ gdk_window_get_pointer (GDK_ROOT_PARENT(), NULL, NULL, &state);
+
+ event->state = state;
+ gtk_drag_update (info, info->cur_x, info->cur_y, (GdkEvent *)event);
+
+ return TRUE;
+}
+
+/*************************************************************
+ * gtk_drag_button_release_cb:
+ * "button_release_event" callback during drag.
+ * arguments:
+ *
+ * results:
+ *************************************************************/
+
+static gint
+gtk_drag_button_release_cb (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer data)
+{
+ GtkDragSourceInfo *info = (GtkDragSourceInfo *)data;
+
+ if (event->button != info->button)
+ return FALSE;
+
+ gtk_drag_end (info, event->time);
+
+ if ((info->context->action != 0) && (info->context->dest_window != NULL))
+ {
+ gtk_drag_drop (info, event->time);
+ }
+ else
+ {
+ gdk_drag_abort (info->context, event->time);
+ gtk_drag_drop_finished (info, FALSE, event->time);
+ }
+
return TRUE;
}
GtkDragSourceInfo *info = data;
guint32 time = GDK_CURRENT_TIME;
+ GDK_THREADS_ENTER ();
+
if (info->proxy_dest)
time = info->proxy_dest->proxy_drop_time;
info->drop_timeout = 0;
gtk_drag_drop_finished (info, FALSE, time);
+ GDK_THREADS_LEAVE ();
+
return FALSE;
}
+
+/**
+ * gtk_drag_check_threshold:
+ * @widget: a #GtkWidget
+ * @start_x: X coordinate of start of drag
+ * @start_y: Y coordinate of start of drag
+ * @current_x: current X coordinate
+ * @current_y: current Y coordinate
+ *
+ * Checks to see if a mouse drag starting at (start_x, start_y) and ending
+ * at (current_x, current_y) has passed the GTK drag threshhold, and thus
+ * should trigger the beginning of a drag-and-drop operation.
+ *
+ * Return Value: If the drag threshold has been passed.
+ **/
+gboolean
+gtk_drag_check_threshold (GtkWidget *widget,
+ gint start_x,
+ gint start_y,
+ gint current_x,
+ gint current_y)
+{
+#define DRAG_THRESHOLD 8
+
+ return (ABS (current_x - start_x) > DRAG_THRESHOLD ||
+ ABS (current_y - start_y) > DRAG_THRESHOLD);
+}
projects / ~andy / gtk / blobdiff