2002-06-08  Hans Breuer  <hans@breuer.org>

	*/*.c */*/*.c : remove all the #ifdef *_UTF8_* hell,
	only keep the utf-8 clean code cause Dia+Gtk2 now talk it.
	Also use g_strdup()'s handling of NULL by returning NULL
	again at all places I found (remove unnecessary if's)

	[make it compile with GTK+ 2.0]

	* app/app_procs.c app/diagram.c : remove
	gtk_item_factory_dump_rc code, (it wasn't read in again anyway)
	but set use gtk_menu_set_accel_path() on menu creation

	* app/color_area.c lib/widgets.c :
	make use of gtk_color_selection_set_has_palette ()

	* app/commands.c : gdk_pixbuf_new_from_file wants an
	extra argument. Convert from DIR to GDir usage.

	* app/diagram_tree.c(button_press_callback) : need to return
	FALSE in the signal handler to let gtk process it further.
	(get_object_name) : don't leak 'prop'

	* app/diapagelayout.c : adapt to GtkTypeInfo changes and handle
	dia_page_layout_destroy() getting called more than once

	* app/diaunitspinner.c : GtkEditable -> GtkEntry,
	GtkTypeInfo changes

	* app/disp_callbacks.c : gtk_menu_append() -> gtk_menu_shell_append()

	* app/display.h : wrap input contexts declarations into #ifdef USE_XIM.
	IIRC this code will not compile unchanged when USE_XIM is defined ...

	* app/gtk[hv]wrapbox.[hc] : use already ported version from The GIMP 1.3.x

	* app/interface.c : there is no widget->klass anymore in Gtk,
	use GTK_WIDGET_GET_CLASS instead. gdk_pixbuf_new_from_file() extra
	parameter. Some tweaking of GtkWrapBox usage to get four tools in
	a row again.
	switch off GTK's double buffering on Dia's canvas. Otherwise we would
	get triple buffering and flicker.
	Replace call to GTK private function _gtk_accel_group_attach()
	with public gtk_window_add_accel_group()

	* app/layer_dialog.c : adapt to GtkTypeInfo changes

	* app/load_save.c lib/plug-ins.c lib/sheet.c
	  objects/custom/custom.c :
	simplified by using g_file_test()

	* app/menus.c : convert from gtk_item_factory_<dump|parse>_rc
	to gtk_accel_map_<save|load>. Also added common stock-icons
	to the menu.

	* app/preferences.c : use gtk_button_set_label() instead
	of button->child which is gone. Also removed GLIB_CHECK_VERSION.

	* app/preferences.c lib/dia_xml.c lib/plug-ins.c :
	#ifdef G_OS_WIN32 #include <io.h>, this was formerly done
	in config.h.win32

	* app/recent_files.c : removed GLIB_CHECK_VERSION

	* app/render_eps.c
	  plug-ins/metapost/render_metapost.c
	  plug-ins/pstricks/render_pstricks.c
	  plug-ins/svg/render_svg.c :
	replace getlogin() with g_get_user_name() which always
	returns non NULL

	* app/render_gdk.c : gdk_region_union_with_rect() modifies
	inplace now and returns nothing, also less #hell

	* app/render_libart.c : some initial #hell cleaning, SuckFont
	still needs to vanish

	* app/splash.c : gdk_pixbuf_new_from_file() second arg and
	GTK_WINDOW_DIALOG -> GTK_WINDOW_TOPLEVEL

	* app/render_pixbuf.c app/sheets.c : plain #hell cleaning
	* app/sheets_dialog_callbacks.c : some #hell and adaptions
	needed to GtkWrapBox api changes