Allow setting paragraph background. (#81045, Gustavo Carneiro, patch by

Allow setting paragraph background. (#81045, Gustavo Carneiro, patch by

2005-06-10  Matthias Clasen  <mclasen@redhat.com>

	Allow setting paragraph background.  (#81045, Gustavo
	Carneiro, patch by Jeroen Zwartepoorte)

	* gtk/gtktextlayout.c (set_para_values): Propagate
	pg_bg_color to the display struct.
	(gtk_text_layout_free_line_display): Free it here.

	* gtk/gtktextdisplay.c (render_para): If pg_bg_color
	is set, draw a rectangle in that color behind
	the paragraph.

	* gtk/gtktexttag.c (gtk_text_tag_class_init): Add
	paragraph-background, paragraph-background-gdk and
	paragraph-background-set properties.
	(set_pg_bg_color): A setter for paragraph-background.

	* gtk/gtktextlayout.h (struct _GtkTextLineDisplay): Add
	pg_bg_color.

	* gtk/gtktexttag.h (struct _GtkTextAttributes): Add
	pg_bg_color.
	(struct _GtkTextTag): Add pg_bg_color_set.