[gtk+/cairo-style: 9/21] style: Convert draw_check vfunc to Cairo version

[Benjamin Otte <otte src gnome org>]

commit a799793f6e887043d3d1d46b3a380d195edc0b15
Author: Benjamin Otte <otte redhat com>
Date:   Mon Aug 16 21:55:02 2010 +0200

    style: Convert draw_check vfunc to Cairo version

 gtk/gtkstyle.c |   66 +++++++++++++++++++++++++++++++++++++++++++------------
 gtk/gtkstyle.h |   35 ++++++++++++++++++-----------
 2 files changed, 73 insertions(+), 28 deletions(-)
---
diff --git a/gtk/gtkstyle.c b/gtk/gtkstyle.c
index 5cf69f1..ba114a4 100644
--- a/gtk/gtkstyle.c
+++ b/gtk/gtkstyle.c
@@ -169,10 +169,9 @@ static void gtk_default_draw_flat_box   (GtkStyle        *style,
 					 gint             width,
 					 gint             height);
 static void gtk_default_draw_check      (GtkStyle        *style,
-					 GdkWindow       *window,
+					 cairo_t         *cr,
 					 GtkStateType     state_type,
 					 GtkShadowType    shadow_type,
-					 GdkRectangle    *area,
 					 GtkWidget       *widget,
 					 const gchar     *detail,
 					 gint             x,
@@ -2763,10 +2762,9 @@ gtk_default_draw_flat_box (GtkStyle      *style,
 
 static void 
 gtk_default_draw_check (GtkStyle      *style,
-			GdkWindow     *window,
+			cairo_t       *cr,
 			GtkStateType   state_type,
 			GtkShadowType  shadow_type,
-			GdkRectangle  *area,
 			GtkWidget     *widget,
 			const gchar   *detail,
 			gint           x,
@@ -2774,7 +2772,6 @@ gtk_default_draw_check (GtkStyle      *style,
 			gint           width,
 			gint           height)
 {
-  cairo_t *cr = gdk_cairo_create (window);
   enum { BUTTON, MENU, CELL } type = BUTTON;
   int exterior_size;
   int interior_size;
@@ -2788,12 +2785,6 @@ gtk_default_draw_check (GtkStyle      *style,
 	type = MENU;
     }
       
-  if (area)
-    {
-      gdk_cairo_rectangle (cr, area);
-      cairo_clip (cr);
-    }
-  
   exterior_size = MIN (width, height);
   if (exterior_size % 2 == 0) /* Ensure odd */
     exterior_size -= 1;
@@ -2882,8 +2873,6 @@ gtk_default_draw_check (GtkStyle      *style,
 		       line_thickness);
       cairo_fill (cr);
     }
-  
-  cairo_destroy (cr);
 }
 
 static void 
@@ -5325,13 +5314,60 @@ gtk_paint_check (GtkStyle           *style,
                  gint                width,
                  gint                height)
 {
+  cairo_t *cr;
+
   g_return_if_fail (GTK_IS_STYLE (style));
   g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_check != NULL);
   g_return_if_fail (style->depth == gdk_drawable_get_depth (window));
 
-  GTK_STYLE_GET_CLASS (style)->draw_check (style, window, state_type, shadow_type,
-                                           (GdkRectangle *) area, widget, detail,
+  cr = gtk_style_cairo_create (window, area);
+
+  gtk_cairo_paint_check (style, cr, state_type, shadow_type,
+                         widget, detail,
+                         x, y, width, height);
+
+  cairo_destroy (cr);
+}
+
+/**
+ * gtk_cairo_paint_check:
+ * @style: a #GtkStyle
+ * @cr: a #cairo_t
+ * @state_type: a state
+ * @shadow_type: the type of shadow to draw
+ * @widget: (allow-none): the widget
+ * @detail: (allow-none): a style detail
+ * @x: x origin of the rectangle to draw the check in
+ * @y: y origin of the rectangle to draw the check in
+ * @width: the width of the rectangle to draw the check in
+ * @height: the height of the rectangle to draw the check in
+ * 
+ * Draws a check button indicator in the given rectangle on @cr with 
+ * the given parameters.
+ */
+void
+gtk_cairo_paint_check (GtkStyle           *style,
+                       cairo_t            *cr,
+                       GtkStateType        state_type,
+                       GtkShadowType       shadow_type,
+                       GtkWidget          *widget,
+                       const gchar        *detail,
+                       gint                x,
+                       gint                y,
+                       gint                width,
+                       gint                height)
+{
+  g_return_if_fail (GTK_IS_STYLE (style));
+  g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_check != NULL);
+  g_return_if_fail (cr != NULL);
+
+  cairo_save (cr);
+
+  GTK_STYLE_GET_CLASS (style)->draw_check (style, cr, state_type, shadow_type,
+                                           widget, detail,
                                            x, y, width, height);
+
+  cairo_restore (cr);
 }
 
 /**
diff --git a/gtk/gtkstyle.h b/gtk/gtkstyle.h
index b709681..0fd4785 100644
--- a/gtk/gtkstyle.h
+++ b/gtk/gtkstyle.h
@@ -234,10 +234,9 @@ struct _GtkStyleClass
 				 gint			 width,
 				 gint			 height);
   void (*draw_check)		(GtkStyle		*style,
-				 GdkWindow		*window,
+				 cairo_t                *cr,
 				 GtkStateType		 state_type,
 				 GtkShadowType		 shadow_type,
-				 GdkRectangle		*area,
 				 GtkWidget		*widget,
 				 const gchar		*detail,
 				 gint			 x,
@@ -590,17 +589,27 @@ void gtk_cairo_paint_flat_box    (GtkStyle           *style,
                                   gint                y,
                                   gint                width,
                                   gint                height);
-void gtk_paint_check       (GtkStyle           *style,
-			    GdkWindow          *window,
-			    GtkStateType        state_type,
-			    GtkShadowType       shadow_type,
-			    const GdkRectangle *area,
-			    GtkWidget          *widget,
-			    const gchar        *detail,
-			    gint                x,
-			    gint                y,
-			    gint                width,
-			    gint                height);
+void gtk_paint_check             (GtkStyle           *style,
+                                  GdkWindow          *window,
+                                  GtkStateType        state_type,
+                                  GtkShadowType       shadow_type,
+                                  const GdkRectangle *area,
+                                  GtkWidget          *widget,
+                                  const gchar        *detail,
+                                  gint                x,
+                                  gint                y,
+                                  gint                width,
+                                  gint                height);
+void gtk_cairo_paint_check       (GtkStyle           *style,
+                                  cairo_t            *cr,
+                                  GtkStateType        state_type,
+                                  GtkShadowType       shadow_type,
+                                  GtkWidget          *widget,
+                                  const gchar        *detail,
+                                  gint                x,
+                                  gint                y,
+                                  gint                width,
+                                  gint                height);
 void gtk_paint_option      (GtkStyle           *style,
 			    GdkWindow          *window,
 			    GtkStateType        state_type,