2002-08-08  Craig Black  <blackc@speakeasy.net>

  Patch to provide extra cues to the user when using
  window menu move and resize, #85724.

  * src/common.h: add new cursors

  * src/display.c: (grab_op_is_mouse)
  (meta_display_create_x_cursor), (xcursor_for_op),
  (meta_display_set_grab_op_cursor),
  (meta_display_begin_grab_op):
  The keyboard move and resize grab ops now also use the mouse.
  Allow the grab cursor to be changed during the grab op.
  Hold onto the initial grab position in case of reset.

  * src/display.h: save the initial grab position

  * src/keybindings.c: (process_keyboard_move_grab),
  (process_keyboard_resize_grab), (handle_begin_move),
  (handle_begin_resize):
  The keyboard move and resize grab ops now also use the mouse.

  * src/window.c: (meta_window_client_message), (menu_callback),
  (update_move), (update_resize),
  (meta_window_handle_mouse_grab_op_event), (warp_pointer),
  (meta_window_warp_pointer), (meta_window_begin_grab_op),
  (meta_window_update_resize_grab_op):
  When moving or resizing a window use the last grab position
  in computing change increment.
  Provide support for warping the mouse pointer.

  * src/window.h: new warp pointer and grab op helper functions