Added a modular client-message-filter mechanism, that is used for the DND

Sun Oct 18 18:16:39 1998  Owen Taylor  <otaylor@gtk.org>

	* gdk/gdk.c gdkprivate.h: Added a modular client-message-filter
	mechanism, that is used for the DND messages.

	  Removed all the old DND code.

	* gdk/gdkcolormap.c gdk/gdkcolormap.h: Add a function to
	get the visual of a given colormap.

	* gtk/gtkcolorsel.c: Conversion to new DND, drag
	a color-swatch.

	* gdk/gdk.h gdk/gdkdnd.c: The low-level
	X oriented portions of drag and drop protocols.
	Sending and receiving client messages, and navigating
	window trees.

	* gdk/gdkimage.c: added a gdk_flush() when destroying
	SHM images to hopefully make it more likely that
        X will gracefully handle the segment being destroyed.

	* gdk/gdkprivate.h gtk/gtkdebug.h: Add new
	DND debugging flags.

	* gtk/gtkeditable.[ch]: Updates for the selection handling
	changes.

	* gtk/gtkselection.[ch]: Added GtkTargetList, a
	refcounted data structure for keeping track of lists
	of GdkAtom + information. Removed selection_handler_add
	in favor of a "drag_data_get" signal.

	* gtk/gtkdnd.[ch] gtk/gtk.h: New files - highlevel (event loop
	dependent) parts of the DND protocols, display of drag icons,
	drag-under highlighting, and the "default handlers".

	* gtk/gtkinvisible.[ch]: New widget - InputOnly offscreen
	windows that are used for reliable pointer grabs and
	selection handling in the DND code.

	* gtk/testdnd.c: New test program for new DND. (Old
	DND tests in testgtk still need to be converted.)

	* gtk/testselection.c: Use the new selection API.

	* docs/dnd_internals: Start at describing how
	all the new code works inside.

	* docs/Changes-1.2.txt: New file describing source-incompatible
	changes in GTK+-1.2.

Sat Oct 17 22:50:34 1998  Owen Taylor  <otaylor@gtk.org>

	* gdk/gdkwindow.c (gdk_window_remove_filter): Free
	the right list node.

	* gdk/gdkwindow.c (gdk_window_init): Add gdk_root_parent
	to the XID table so we can receive events on it.

Wed Oct 14 12:57:40 1998  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdk.c gdk/gdk.h (gdk_event_get_time): New function
	to get the timestamp from a generic event.

Fri Oct  9 13:16:04 1998  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkwidget.c (gtk_widget_add_events): Added function
	that safely adds additional events to a widget's event
	mask, even if the widget has previously been realized.
	(We can do this, but not remove events from the event
	 mask).

Fri Oct  2 17:35:35 1998  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdkproperty.c (gdk_property_get): Allow type == 0,
	for AnyPropertyType.

Fri Oct  2 10:32:21 1998  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdkproperty.c (gdk_atom_intern): Add client-local
	hashing.

Thu Sep 24 20:33:54 1998  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdk.c (gdk_event_send_clientmessage_toall): serial
	isn't a timestamp.

Thu Sep 17 14:23:03 1998  Owen Taylor  <otaylor@redhat.com>

	* gdk/gdk.c (gdk_event_translate): Removed printing
	of unknown window lookup warnings. (Made it
	a GDK_NOTE) - they happen in many circumstances.

1 files changed, 48 insertions, 21 deletions

diff --git a/gtk/gtkselection.h b/gtk/gtkselection.h
index 21f9ed2664..75fcd5aeb6 100644
--- a/gtk/gtkselection.h
+++ b/gtk/gtkselection.h
@@ -29,36 +29,63 @@ extern "C" {
 #endif /* __cplusplus */
 
 typedef struct _GtkSelectionData GtkSelectioData;
+typedef struct _GtkTargetList    GtkTargetList;
+typedef struct _GtkTargetEntry   GtkTargetEntry;
 
-/* a callback function that provides the selection. Arguments are:
-   widget: selection owner
-   offset: offset into selection
-   buffer: buffer into which to store selection 
-   length: length of buffer
-   bytes_after: (sizeof(selection) - offset - length ) (return)
-   data:   callback data */
+struct _GtkTargetEntry {
+  gchar *target;
+  guint  flags;
+  guint  info;
+};
 
-typedef void (*GtkSelectionFunction) (GtkWidget *widget, 
-				      GtkSelectionData *selection_data,
-				      gpointer data);
+/* These structures not public, and are here only for the convenience of
+ * gtkdnd.c 
+ */
+
+typedef struct _GtkTargetPair GtkTargetPair;
+
+/* This structure is a list of destinations, and associated guint id's */
+struct _GtkTargetList {
+  GList *list;
+  guint ref_count;
+};
+
+struct _GtkTargetPair {
+  GdkAtom   target;
+  guint     flags;
+  guint     info;
+};
+
+GtkTargetList *gtk_target_list_new       (GtkTargetEntry *targets,
+					  guint           ntargets);
+void           gtk_target_list_ref       (GtkTargetList  *list);
+void           gtk_target_list_unref     (GtkTargetList  *list);
+void           gtk_target_list_add       (GtkTargetList  *list,
+				  	  GdkAtom         target,
+					  guint           flags,
+					  guint           info);
+void           gtk_target_list_add_table (GtkTargetList  *list,
+					  GtkTargetEntry *targets,
+					  guint           ntargets);
+void           gtk_target_list_remove    (GtkTargetList  *list,
+					  GdkAtom         target);
+gboolean       gtk_target_list_find      (GtkTargetList  *list,
+					  GdkAtom         target,
+					  guint          *info);
 
 /* Public interface */
 
 gint gtk_selection_owner_set (GtkWidget 	  *widget,
 			      GdkAtom    	   selection,
 			      guint32    	   time);
-void gtk_selection_add_handler (GtkWidget           *widget, 
+void gtk_selection_add_target (GtkWidget           *widget, 
+			       GdkAtom              selection,
+			       GdkAtom              target,
+			       guint                info);
+void gtk_selection_add_targets (GtkWidget           *widget, 
 				GdkAtom              selection,
-				GdkAtom              target,
-				GtkSelectionFunction function,
-				gpointer             data);
-void gtk_selection_add_handler_full (GtkWidget           *widget, 
-				     GdkAtom              selection,
-				     GdkAtom              target,
-				     GtkSelectionFunction function,
-				     GtkCallbackMarshal   marshal,
-				     gpointer             data,
-				     GtkDestroyNotify     destroy);
+				GtkTargetEntry      *targets,
+				guint                ntargets);
 gint gtk_selection_convert   (GtkWidget 	  *widget, 
 			      GdkAtom    	   selection, 
 			      GdkAtom    	   target,