[gtk+/cairo-style: 17/21] style: Convert draw_handle vfunc to Cairo version

[Benjamin Otte <otte src gnome org>]

commit 1f439862030874f5ff56558922909a2cf6919812
Author: Benjamin Otte <otte redhat com>
Date:   Tue Aug 17 03:26:20 2010 +0200

    style: Convert draw_handle vfunc to Cairo version

 gtk/gtkstyle.c |   78 +++++++++++++++++++++++++++++++++++++++++--------------
 gtk/gtkstyle.h |   38 +++++++++++++++++----------
 2 files changed, 82 insertions(+), 34 deletions(-)
---
diff --git a/gtk/gtkstyle.c b/gtk/gtkstyle.c
index c8a532f..ae1c384 100644
--- a/gtk/gtkstyle.c
+++ b/gtk/gtkstyle.c
@@ -256,10 +256,9 @@ static void gtk_default_draw_slider     (GtkStyle        *style,
 					 gint             height,
 					 GtkOrientation   orientation);
 static void gtk_default_draw_handle     (GtkStyle        *style,
-					 GdkWindow       *window,
+					 cairo_t         *cr,
 					 GtkStateType     state_type,
 					 GtkShadowType    shadow_type,
-					 GdkRectangle    *area,
 					 GtkWidget       *widget,
 					 const gchar     *detail,
 					 gint             x,
@@ -3724,10 +3723,9 @@ draw_dot (cairo_t    *cr,
 
 static void 
 gtk_default_draw_handle (GtkStyle      *style,
-			 GdkWindow     *window,
+			 cairo_t       *cr,
 			 GtkStateType   state_type,
 			 GtkShadowType  shadow_type,
-			 GdkRectangle  *area,
 			 GtkWidget     *widget,
 			 const gchar   *detail,
 			 gint           x,
@@ -3739,19 +3737,9 @@ gtk_default_draw_handle (GtkStyle      *style,
   gint xx, yy;
   gint xthick, ythick;
   GdkColor light, dark;
-  cairo_t *cr;
-  
-  sanitize_size (window, &width, &height);
-  
-  gtk_paint_box (style, window, state_type, shadow_type, area, widget, 
-                 detail, x, y, width, height);
   
-  cr = gdk_cairo_create (window);
-  if (area)
-    {
-      gdk_cairo_rectangle (cr, area);
-      cairo_clip (cr);
-    }
+  gtk_cairo_paint_box (style, cr, state_type, shadow_type, widget, 
+                       detail, x, y, width, height);
   
   if (detail && !strcmp (detail, "paned"))
     {
@@ -3798,8 +3786,6 @@ gtk_default_draw_handle (GtkStyle      *style,
 	    draw_dot (cr, &light, &dark, xx + 3, yy + 1, 2);
 	  }
     }
-
-  cairo_destroy (cr);
 }
 
 static void
@@ -5978,13 +5964,65 @@ gtk_paint_handle (GtkStyle           *style,
                   gint                height,
                   GtkOrientation      orientation)
 {
+  cairo_t *cr;
+
   g_return_if_fail (GTK_IS_STYLE (style));
   g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_handle != NULL);
   g_return_if_fail (style->depth == gdk_drawable_get_depth (window));
 
-  GTK_STYLE_GET_CLASS (style)->draw_handle (style, window, state_type, shadow_type,
-                                            (GdkRectangle *) area, widget, detail,
+  sanitize_size (window, &width, &height);
+
+  cr = gtk_style_cairo_create (window, area);
+
+  gtk_cairo_paint_handle (style, cr, state_type, shadow_type,
+                          widget, detail,
+                          x, y, width, height, orientation);
+
+  cairo_destroy (cr);
+}
+
+/**
+ * gtk_cairo_paint_handle:
+ * @style: a #GtkStyle
+ * @cr: a #cairo_t
+ * @state_type: a state
+ * @shadow_type: type of shadow to draw
+ * @widget: (allow-none): the widget
+ * @detail: (allow-none): a style detail
+ * @x: x origin of the handle
+ * @y: y origin of the handle
+ * @width: with of the handle
+ * @height: height of the handle
+ * @orientation: the orientation of the handle
+ * 
+ * Draws a handle as used in #GtkHandleBox and #GtkPaned.
+ **/
+void
+gtk_cairo_paint_handle (GtkStyle           *style,
+                        cairo_t            *cr,
+                        GtkStateType        state_type,
+                        GtkShadowType       shadow_type,
+                        GtkWidget          *widget,
+                        const gchar        *detail,
+                        gint                x,
+                        gint                y,
+                        gint                width,
+                        gint                height,
+                        GtkOrientation      orientation)
+{
+  g_return_if_fail (GTK_IS_STYLE (style));
+  g_return_if_fail (GTK_STYLE_GET_CLASS (style)->draw_handle != NULL);
+  g_return_if_fail (cr != NULL);
+  g_return_if_fail (width >= 0);
+  g_return_if_fail (height >= 0);
+
+  cairo_save (cr);
+
+  GTK_STYLE_GET_CLASS (style)->draw_handle (style, cr, state_type, shadow_type,
+                                            widget, detail,
                                             x, y, width, height, orientation);
+
+  cairo_restore (cr);
 }
 
 /**
diff --git a/gtk/gtkstyle.h b/gtk/gtkstyle.h
index 2fcf5f8..f2ce942 100644
--- a/gtk/gtkstyle.h
+++ b/gtk/gtkstyle.h
@@ -321,10 +321,9 @@ struct _GtkStyleClass
 				 gint			 height,
 				 GtkOrientation		 orientation);
   void (*draw_handle)		(GtkStyle		*style,
-				 GdkWindow		*window,
+				 cairo_t                *cr,
 				 GtkStateType		 state_type,
 				 GtkShadowType		 shadow_type,
-				 GdkRectangle		*area,
 				 GtkWidget		*widget,
 				 const gchar		*detail,
 				 gint			 x,
@@ -764,18 +763,29 @@ void gtk_cairo_paint_slider      (GtkStyle           *style,
                                   gint                width,
                                   gint                height,
                                   GtkOrientation      orientation);
-void gtk_paint_handle      (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,
-			    GtkOrientation      orientation);
+void gtk_paint_handle            (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,
+                                  GtkOrientation      orientation);
+void gtk_cairo_paint_handle      (GtkStyle           *style,
+                                  cairo_t            *cr,
+                                  GtkStateType        state_type,
+                                  GtkShadowType       shadow_type,
+                                  GtkWidget          *widget,
+                                  const gchar        *detail,
+                                  gint                x,
+                                  gint                y,
+                                  gint                width,
+                                  gint                height,
+                                  GtkOrientation      orientation);
 void gtk_paint_expander    (GtkStyle           *style,
                             GdkWindow          *window,
                             GtkStateType        state_type,