static void
interactive_canvas_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time,
gpointer data)
{
/* find the tool button which is the source of this DnD operation */
GtkWidget *palette = gtk_drag_get_source_widget (context);
GtkWidget *tool_item = NULL;
while (palette && !GTK_IS_TOOL_PALETTE (palette))
palette = gtk_widget_get_parent (palette);
if (palette)
tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
selection);
/* create a drop indicator when a tool button was found */
g_assert (NULL == drop_item);
if (GTK_IS_TOOL_ITEM (tool_item))
{
drop_item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
gdk_drag_status (context, GDK_ACTION_COPY, time);
gtk_widget_queue_draw (widget);
}
}
static void
interactive_canvas_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time,
gpointer data)
{
/* find the tool button which is the source of this DnD operation */
GtkWidget *palette = gtk_drag_get_source_widget (context);
GtkWidget *tool_item = NULL;
CanvasItem *item;
while (palette && !GTK_IS_TOOL_PALETTE (palette))
palette = gtk_widget_get_parent (palette);
if (palette)
tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
selection);
/* create a canvas item when a tool button was found */
g_assert (NULL == drop_item);
if (!GTK_IS_TOOL_ITEM (tool_item))
return;
if (drop_item)
{
canvas_item_free (drop_item);
drop_item = NULL;
}
item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
/* Either create a new item or just create a preview item,
depending on why the drag data was requested. */
if(drag_data_requested_for_drop)
{
canvas_items = g_list_append (canvas_items, item);
drop_item = NULL;
gtk_drag_finish (context, TRUE, FALSE, time);
} else
{
drop_item = item;
gdk_drag_status (context, GDK_ACTION_COPY, time);
}
gtk_widget_queue_draw (widget);
}
static void
passive_canvas_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time,
gpointer data)
{
/* find the tool button, which is the source of this DnD operation */
GtkWidget *palette = gtk_drag_get_source_widget (context);
CanvasItem *canvas_item = NULL;
GtkWidget *tool_item = NULL;
while (palette && !GTK_IS_TOOL_PALETTE (palette))
palette = gtk_widget_get_parent (palette);
if (palette)
tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
selection);
g_assert (NULL == drop_item);
/* append a new canvas item when a tool button was found */
if (GTK_IS_TOOL_ITEM (tool_item))
canvas_item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
if (canvas_item)
{
canvas_items = g_list_append (canvas_items, canvas_item);
gtk_widget_queue_draw (widget);
}
}
