pidgin: 4ef43084: Support rgb(r,g,b) style css color defin...

[datallah at pidgin.im]

-----------------------------------------------------------------
Revision: 4ef430848d380eda5938f38a09d3560b83e3f91b
Ancestor: 351069ce032cca102c0beecf9c1ad448295fce32
Author: datallah at pidgin.im
Date: 2008-10-24T04:19:10
Branch: im.pidgin.pidgin
URL: http://d.pidgin.im/viewmtn/revision/info/4ef430848d380eda5938f38a09d3560b83e3f91b

Modified files:
        pidgin/gtkimhtml.c

ChangeLog: 

Support rgb(r,g,b) style css color definitions. Fixes #7288.

-------------- next part --------------
============================================================
--- pidgin/gtkimhtml.c	78cd8b8bf3967a49cdbedcd53036173d3dd5915f
+++ pidgin/gtkimhtml.c	1e96a64b8209b49c9751afea1f9db538a6d81b02
@@ -2522,6 +2522,68 @@ void gtk_imhtml_scroll_to_end(GtkIMHtml 
 	}
 }
 
+/* CSS colors are either rgb (x,y,z) or #hex
+ * we need to convert to hex if it is RGB */
+static gchar*
+parse_css_color(gchar *in_color)
+{
+	char *tmp = in_color;
+
+	if (*tmp == 'r' && *(++tmp) == 'g' && *(++tmp) == 'b'
+			&& *(++tmp) == '(' && *(++tmp)) {
+		int rgbval[] = {0, 0, 0};
+		int count = 0;
+		const char *v_start;
+
+		while (count < 3) {
+			/* Skip any leading spaces */
+			while (*tmp && g_ascii_isspace(*tmp))
+				tmp++;
+
+			/* Find the subsequent contiguous digits */
+			v_start = tmp;
+			while (*tmp && g_ascii_isdigit(*tmp))
+				tmp++;
+
+			if (tmp != v_start) {
+				char prev = *tmp;
+				*tmp = '\0';
+				rgbval[count] = atoi(v_start);
+				*tmp = prev;
+
+				/* deal with % */
+				while (*tmp && g_ascii_isspace(*tmp))
+					tmp++;
+				if (*tmp == '%') {
+					rgbval[count] = (rgbval[count] / 100.0) * 255;
+					tmp++;
+				}
+			} else {
+				purple_debug_warning("gtkimhtml", "Invalid rgb CSS color in '%s'!\n", in_color);
+				return in_color;
+			}
+
+			if (rgbval[count] > 255) {
+				rgbval[count] = 255;
+			} else if (rgbval[count] < 0) {
+				rgbval[count] = 0;
+			}
+
+			while (*tmp && g_ascii_isspace(*tmp))
+				tmp++;
+			if (*tmp == ',')
+				tmp++;
+
+			count++;
+		}
+		
+		g_free(in_color);
+		return g_strdup_printf("#%02X%02X%02X", rgbval[0], rgbval[1], rgbval[2]);
+	}
+
+	return in_color;
+}
+
 void gtk_imhtml_insert_html_at_iter(GtkIMHtml        *imhtml,
                                     const gchar      *text,
                                     GtkIMHtmlOptions  options,
@@ -2982,7 +3044,7 @@ void gtk_imhtml_insert_html_at_iter(GtkI
 							oldfont = fonts->data;
 
 						if (color && !(options & GTK_IMHTML_NO_COLOURS) && (imhtml->format_functions & GTK_IMHTML_FORECOLOR)) {
-							font->fore = color;
+							font->fore = parse_css_color(color);
 							gtk_imhtml_toggle_forecolor(imhtml, font->fore);
 						} else {
 							if (oldfont && oldfont->fore)
@@ -2991,7 +3053,7 @@ void gtk_imhtml_insert_html_at_iter(GtkI
 						}
 
 						if (background && !(options & GTK_IMHTML_NO_COLOURS) && (imhtml->format_functions & GTK_IMHTML_BACKCOLOR)) {
-							font->back = background;
+							font->back = parse_css_color(background);
 							gtk_imhtml_toggle_backcolor(imhtml, font->back);
 						} else {
 							if (oldfont && oldfont->back)