[nautilus] [eel] add an 'outline-stippling' property to the rect item

[Cosimo Cecchi <cosimoc src gnome org>]

commit b453aaacb0b17392eacacd8a9e378b7227da6413
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Aug 13 18:57:09 2010 +0200

    [eel] add an 'outline-stippling' property to the rect item

 eel/eel-canvas-rect-ellipse.c |   24 ++++++++++++++++++++++++
 eel/eel-canvas-rect-ellipse.h |    2 ++
 2 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/eel/eel-canvas-rect-ellipse.c b/eel/eel-canvas-rect-ellipse.c
index 4ed1fd8..688e289 100644
--- a/eel/eel-canvas-rect-ellipse.c
+++ b/eel/eel-canvas-rect-ellipse.c
@@ -59,6 +59,7 @@ enum {
 	PROP_OUTLINE_COLOR,
 	PROP_OUTLINE_COLOR_GDK,
 	PROP_OUTLINE_COLOR_RGBA,
+	PROP_OUTLINE_STIPPLING,
 	PROP_WIDTH_PIXELS,
 	PROP_WIDTH_UNITS
 };
@@ -200,6 +201,11 @@ eel_canvas_re_class_init (EelCanvasREClass *klass)
                  g_param_spec_uint ("outline-color-rgba", NULL, NULL,
 				    0, G_MAXUINT, 0,
 				    G_PARAM_READWRITE));
+	g_object_class_install_property
+		(gobject_class,
+		 PROP_OUTLINE_STIPPLING,
+		 g_param_spec_boolean ("outline-stippling", NULL, NULL,
+				       FALSE, G_PARAM_READWRITE));
         g_object_class_install_property
                 (gobject_class,
                  PROP_WIDTH_PIXELS,
@@ -430,6 +436,12 @@ eel_canvas_re_set_property (GObject              *object,
 		eel_canvas_item_request_redraw (item);		
 		break;
 
+	case PROP_OUTLINE_STIPPLING:
+		re->outline_stippling = g_value_get_boolean (value);
+
+		eel_canvas_item_request_redraw (item);
+		break;
+
 	case PROP_WIDTH_PIXELS:
 		re->width = g_value_get_uint (value);
 		re->width_pixels = TRUE;
@@ -514,6 +526,10 @@ eel_canvas_re_get_property (GObject              *object,
 		g_value_set_uint (value,  re->outline_color);
 		break;
 
+	case PROP_OUTLINE_STIPPLING:
+		g_value_set_boolean (value, re->outline_stippling);
+		break;
+
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 		break;
@@ -732,6 +748,8 @@ eel_canvas_set_source_color (cairo_t *cr,
 			       ((rgba >>  0) & 0xff) / 255.);
 }
 
+#define DASH_ON 0.8
+#define DASH_OFF 1.7
 static void
 eel_canvas_rect_draw (EelCanvasItem *item, GdkDrawable *drawable, GdkEventExpose *expose)
 {
@@ -781,6 +799,12 @@ eel_canvas_rect_draw (EelCanvasItem *item, GdkDrawable *drawable, GdkEventExpose
 			cairo_set_line_width (cr, (int) (re->width * re->item.canvas->pixels_per_unit + 0.5));
 		}
 
+		if (re->outline_stippling) {
+			double dash[2] = { DASH_ON, DASH_OFF };
+
+			cairo_set_dash (cr, dash, G_N_ELEMENTS (dash), 0);
+		}
+
 		cairo_rectangle (cr,
 				 cx1 + 0.5, cy1 + 0.5,
 				 cx2 - cx1,
diff --git a/eel/eel-canvas-rect-ellipse.h b/eel/eel-canvas-rect-ellipse.h
index 288c66a..6036361 100644
--- a/eel/eel-canvas-rect-ellipse.h
+++ b/eel/eel-canvas-rect-ellipse.h
@@ -84,6 +84,8 @@ struct _EelCanvasRE {
 	guint fill_color;		/* Fill color, RGBA */
 	guint outline_color;		/* Outline color, RGBA */
 
+	gboolean outline_stippling;
+
 	/* Configuration flags */
 
 	unsigned int fill_set : 1;	/* Is fill color set? */