Implement asychronous widget updates

This patch makes changes to widgets be deferred until redisplay actually runs. This should on balance make redisplay of widgets better, but expect some glitches short term as this whole area is a bit hairy. andy 2000-02-09 Andy Piper <andy(a)xemacs.org&gt; * redisplay-output.c (redisplay_output_layout): be more clever about when we output based on the changed flags. * glyphs.h (struct image_instantiator_methods): add update_method. (struct Lisp_Image_Instance): add changed flags. Declare new macros for manipulating them. * glyphs.c (allocate_image_instance): renamed glyph -> parent. (image_instance_parent_glyph): find an image_instance's parent glyph or image_instance. (image_instance_layout): mark the size as changed. (set_image_instance_dirty_p): new function. mark an image instance, plus all of its parents, as dirty. (Fset_image_instance_property): use it. (Fglyph_animated_timeout_handler): use it. (update_subwindow): call update_widget and device methods for update_subwindow. Mark all changed flags as clean. (Fresize_subwindow): mark size as changed. * glyphs-x.c (x_finalize_image_instance): try and detect gc failures. (x_update_subwindow): only resize subwindows here. (x_update_widget): new function. Update all changed properties of a widget. (x_resize_subwindow): deleted. (x_widget_set_property): deleted. (x_progress_gauge_set_property): deleted. (x_progress_gauge_update): new function. Implement recorded changes. (x_tab_control_update): ditto. (x_tab_control_set_property): deleted. (console_type_create_glyphs_x): declare new functions. (image_instantiator_format_create_glyphs_x): ditto. * glyphs-widget.c (widget_set_property): mark text changed. (update_widget): new function. Update properties of a widget. (widget_instantiate): for layouts make sure we set their children's parent correctly. (tab_control_set_property): new function. Record changes that will take place under redisplay's control. (progress_gauge_set_property): ditto. (image_instantiator_progress_guage): declare new functions. (image_instantiator_tab_control): ditto. * glyphs-msw.c (mswindows_update_subwindow): just do resizing here now. (mswindows_update_widget): new function. Update all properties on a widget that have changed. (mswindows_button_update): new function. Update a button's set state. (mswindows_tab_control_update): new function. Update the items in a tab. (mswindows_tab_control_set_property): deleted. (mswindows_progress_gauge_update): new function. Update the progress gauge's progress. (mswindows_widget_set_property): deleted. This is all done asynchronously now. (mswindows_progress_gauge_set_property): ditto. (console_type_create_glyphs_mswindows): declare new methods. (image_instantiator_format_create_glyphs_mswindows): ditto. * frame-msw.c (msprinter_init_frame_1): Remove unused variables. (msprinter_set_frame_properties): ditto. * console.h (struct console_methods): Add update_widget_method. -------------------------------------------------------------- Dr Andy Piper Senior Consultant Architect, BEA Systems Ltd