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-rw-r--r--gtk/gtkcairoblurprivate.h3
-rw-r--r--gtk/gtkcssshadowvalue.c29
2 files changed, 29 insertions, 3 deletions
diff --git a/gtk/gtkcairoblurprivate.h b/gtk/gtkcairoblurprivate.h
index 970c0826d8..68126d3b5b 100644
--- a/gtk/gtkcairoblurprivate.h
+++ b/gtk/gtkcairoblurprivate.h
@@ -32,7 +32,8 @@ G_BEGIN_DECLS
typedef enum {
GTK_BLUR_NONE = 0,
GTK_BLUR_X = 1<<0,
- GTK_BLUR_Y = 1<<1
+ GTK_BLUR_Y = 1<<1,
+ GTK_BLUR_REPEAT = 1<<2
} GtkBlurFlags;
void _gtk_cairo_blur_surface (cairo_surface_t *surface,
diff --git a/gtk/gtkcssshadowvalue.c b/gtk/gtkcssshadowvalue.c
index 341844f751..ffdc2b6250 100644
--- a/gtk/gtkcssshadowvalue.c
+++ b/gtk/gtkcssshadowvalue.c
@@ -328,6 +328,14 @@ gtk_css_shadow_value_start_drawing (const GtkCssValue *shadow,
radius = _gtk_css_number_value_get (shadow->radius, 0);
clip_radius = _gtk_cairo_blur_compute_pixels (radius);
+ if (blur_flags & GTK_BLUR_REPEAT)
+ {
+ if (!blur_x)
+ clip_rect.width = 1;
+ if (!blur_y)
+ clip_rect.height = 1;
+ }
+
/* Create a larger surface to center the blur. */
surface = cairo_surface_create_similar_image (cairo_get_target (cr),
CAIRO_FORMAT_A8,
@@ -350,6 +358,20 @@ gtk_css_shadow_value_start_drawing (const GtkCssValue *shadow,
return blur_cr;
}
+void
+mask_surface_repeat (cairo_t *cr,
+ cairo_surface_t *surface)
+{
+ cairo_pattern_t *pattern;
+
+ pattern = cairo_pattern_create_for_surface (surface);
+ cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
+
+ cairo_mask (cr, pattern);
+
+ cairo_pattern_destroy (pattern);
+}
+
static cairo_t *
gtk_css_shadow_value_finish_drawing (const GtkCssValue *shadow,
cairo_t *cr,
@@ -370,7 +392,10 @@ gtk_css_shadow_value_finish_drawing (const GtkCssValue *shadow,
_gtk_cairo_blur_surface (surface, radius, blur_flags);
gdk_cairo_set_source_rgba (original_cr, _gtk_css_rgba_value_get_rgba (shadow->color));
- cairo_mask_surface (original_cr, surface, 0, 0);
+ if (blur_flags & GTK_BLUR_REPEAT)
+ mask_surface_repeat (original_cr, surface);
+ else
+ cairo_mask_surface (original_cr, surface, 0, 0);
cairo_destroy (cr);
@@ -740,7 +765,7 @@ _gtk_css_shadow_value_paint_box (const GtkCssValue *shadow,
/* Then the sides */
for (i = 0; i < 4; i++)
{
- GtkBlurFlags blur_flags = 0;
+ GtkBlurFlags blur_flags = GTK_BLUR_REPEAT;
if (i == GTK_CSS_TOP || i == GTK_CSS_BOTTOM)
{