From ea7bc87871154c2239f25d84191add2d4b630022 Mon Sep 17 00:00:00 2001
From: Jasmine Hassan <jasmine.aura@gmail.com>
Date: Wed, 31 Oct 2012 07:16:33 +0200
Subject: [eel] Use GdkRegion on GTK2, cairo_region_t on GTK3

http://git.gnome.org/browse/nautilus/commit/?id=3b671558f1d8ac1ee72e8af13d4ede6ab549a400
---
 eel/eel-canvas-rect-ellipse.c | 24 +++++++++++++++---------
 eel/eel-canvas.c              |  8 +++++++-
 eel/eel-editable-label.c      | 14 ++++++++++----
 3 files changed, 32 insertions(+), 14 deletions(-)

diff --git a/eel/eel-canvas-rect-ellipse.c b/eel/eel-canvas-rect-ellipse.c
index c637769d..b78c47a7 100644
--- a/eel/eel-canvas-rect-ellipse.c
+++ b/eel/eel-canvas-rect-ellipse.c
@@ -1012,9 +1012,8 @@ eel_canvas_rect_draw (EelCanvasItem *item, GdkDrawable *drawable, GdkEventExpose
     {
         if ((re->fill_color & 0xff) != 255)
         {
-            GdkRectangle *rectangles;
             gint i, n_rectangles;
-            GdkRectangle draw_rect;
+            GdkRectangle draw_rect, rect;
             GdkRectangle part;
 
             draw_rect.x = cx1;
@@ -1024,13 +1023,19 @@ eel_canvas_rect_draw (EelCanvasItem *item, GdkDrawable *drawable, GdkEventExpose
 
             /* For alpha mode, only render the parts of the region
                that are actually exposed */
-            gdk_region_get_rectangles (expose->region,
-                                       &rectangles,
-                                       &n_rectangles);
-
+#if GTK_CHECK_VERSION(3, 0, 0)
+            n_rectangles = cairo_region_num_rectangles (expose->region);
+#else
+            gdk_region_get_rectangles (expose->region, &rect, &n_rectangles);
+#endif
             for (i = 0; i < n_rectangles; i++)
             {
-                if (gdk_rectangle_intersect (&rectangles[i],
+#if GTK_CHECK_VERSION(3, 0, 0)
+                cairo_region_get_rectangle (expose->region, i, &rect);
+#else
+                rect = &rect[i];
+#endif
+                if (gdk_rectangle_intersect (&rect,
                                              &draw_rect,
                                              &part))
                 {
@@ -1041,8 +1046,9 @@ eel_canvas_rect_draw (EelCanvasItem *item, GdkDrawable *drawable, GdkEventExpose
                                        re->fill_color);
                 }
             }
-
-            g_free (rectangles);
+#if !GTK_CHECK_VERSION(3, 0, 0)
+            g_free (rect);
+#endif
         }
         else
         {
diff --git a/eel/eel-canvas.c b/eel/eel-canvas.c
index a4d6612d..43c111f6 100644
--- a/eel/eel-canvas.c
+++ b/eel/eel-canvas.c
@@ -73,6 +73,12 @@
 
 #include "eel-marshal.h"
 
+/* Some compatibility defines to let us build on both Gtk2 and Gtk3 */
+#if !GTK_CHECK_VERSION (3, 0, 0)
+#define cairo_region_contains_rectangle gdk_region_rect_in
+#define CAIRO_REGION_OVERLAP_OUT GDK_OVERLAP_RECTANGLE_OUT
+#endif
+
 static void eel_canvas_request_update (EelCanvas      *canvas);
 static void group_add                   (EelCanvasGroup *group,
         EelCanvasItem  *item);
@@ -1553,7 +1559,7 @@ eel_canvas_group_draw (EelCanvasItem *item, GdkDrawable *drawable,
             child_rect.width = child->x2 - child->x1 + 1;
             child_rect.height = child->y2 - child->y1 + 1;
 
-            if (gdk_region_rect_in (expose->region, &child_rect) != GDK_OVERLAP_RECTANGLE_OUT)
+            if (cairo_region_contains_rectangle (expose->region, &child_rect) != CAIRO_REGION_OVERLAP_OUT)
                 (* EEL_CANVAS_ITEM_GET_CLASS (child)->draw) (child, drawable, expose);
         }
     }
diff --git a/eel/eel-editable-label.c b/eel/eel-editable-label.c
index 7780fe7f..2c7ea7b0 100644
--- a/eel/eel-editable-label.c
+++ b/eel/eel-editable-label.c
@@ -37,6 +37,12 @@
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
 
+/* Some compatibility defines to let us build on both Gtk2 and Gtk3 */
+#if !GTK_CHECK_VERSION (3, 0, 0)
+#define cairo_region_t GdkRegion
+#define cairo_region_destroy gdk_region_destroy
+#endif
+
 enum
 {
     MOVE_CURSOR,
@@ -1580,7 +1586,7 @@ eel_editable_label_draw_cursor (EelEditableLabel  *label, gint xoffset, gint yof
         }
         else /* Block cursor */
         {
-            GdkRegion *clip;
+            cairo_region_t *clip;
 
             gdk_draw_rectangle (gtk_widget_get_window (widget), label->primary_cursor_gc, TRUE,
                                 xoffset + PANGO_PIXELS (strong_pos.x),
@@ -1608,7 +1614,7 @@ eel_editable_label_draw_cursor (EelEditableLabel  *label, gint xoffset, gint yof
                                              NULL);
 
                 gdk_gc_set_clip_region (label->primary_cursor_gc, NULL);
-                gdk_region_destroy (clip);
+                cairo_region_destroy (clip);
             }
         }
     }
@@ -1650,7 +1656,7 @@ eel_editable_label_expose (GtkWidget      *widget,
         {
             gint range[2];
             const char *text;
-            GdkRegion *clip;
+            cairo_region_t *clip;
             GtkStateType state;
 
             range[0] = label->selection_anchor;
@@ -1695,7 +1701,7 @@ eel_editable_label_expose (GtkWidget      *widget,
                                          &style->base[state]);
 
             gdk_gc_set_clip_region (style->black_gc, NULL);
-            gdk_region_destroy (clip);
+            cairo_region_destroy (clip);
         }
         else if (gtk_widget_has_focus (widget))
             eel_editable_label_draw_cursor (label, x, y);
-- 
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