[sapwood] implement the clipping test for ThemePixbuf

[Sven Herzberg <herzi src gnome org>]

commit 4a0c55f304e21b18df943165e7b5d6ea6a2e94a9
Author: Sven Herzberg <herzi gnome-de org>
Date:   Thu Aug 5 14:03:41 2010 +0200

    implement the clipping test for ThemePixbuf
    
    * tests/test-framework.h,
    * tests/test-sapwood.c: move the include for uintptr_t into the header
      with the macro using it
    * tests/test-theme-pixbuf.c: implement the first ThemePixbuf test
    * tests/theme-pixbuf-render-clipped.png: the expected test result

 tests/test-framework.h                |    1 +
 tests/test-sapwood.c                  |    1 -
 tests/test-theme-pixbuf.c             |   44 +++++++++++++++++++++++++++++++++
 tests/theme-pixbuf-render-clipped.png |  Bin 0 -> 357 bytes
 4 files changed, 45 insertions(+), 1 deletions(-)
---
diff --git a/tests/test-framework.h b/tests/test-framework.h
index 1a75f57..faee694 100644
--- a/tests/test-framework.h
+++ b/tests/test-framework.h
@@ -21,6 +21,7 @@
 #ifndef TEST_FRAMEWORK_H
 #define TEST_FRAMEWORK_H
 
+#include <stdint.h>         /* uintptr_t */
 #include <gdk/gdk.h>
 
 G_BEGIN_DECLS
diff --git a/tests/test-sapwood.c b/tests/test-sapwood.c
index db1621f..b2fc719 100644
--- a/tests/test-sapwood.c
+++ b/tests/test-sapwood.c
@@ -21,7 +21,6 @@
  */
 
 #include <errno.h>          /* errno */
-#include <stdint.h>         /* uintptr_t */
 #include <stdlib.h>         /* realpath() */
 #include <sapwood-pixmap.h>
 #include <gdk/gdkx.h>       /* GDK_DISPLAY_XDISPLAY() */
diff --git a/tests/test-theme-pixbuf.c b/tests/test-theme-pixbuf.c
index 32759d2..8786e14 100644
--- a/tests/test-theme-pixbuf.c
+++ b/tests/test-theme-pixbuf.c
@@ -22,9 +22,53 @@
 
 #include "test-sapwood.h"
 
+#include "test-framework.h"
+#include "theme-pixbuf.h"
+
 static void
 test_render_clipped (void)
 {
+  GdkRectangle  clip_rect = {100, 100, 100, 100};
+  GdkDrawable * drawable;
+  ThemePixbuf * pixbuf;
+  GdkBitmap   * mask;
+  GdkPixbuf   * expected;
+  GdkPixbuf   * result;
+  GError      * error = NULL;
+
+  pixbuf = theme_pixbuf_new ();
+  theme_pixbuf_set_filename (pixbuf,
+                             TOP_SRCDIR G_DIR_SEPARATOR_S
+                             "tests" G_DIR_SEPARATOR_S
+                             "test-source-alpha75.png");
+  theme_pixbuf_set_border   (pixbuf, 16, 16, 16, 16);
+  g_test_queue_destroy ((GFreeFunc) theme_pixbuf_unref, pixbuf);
+
+  drawable = create_pixmap (200, 200);
+
+  mask = gdk_pixmap_new (NULL, 200, 200, 1);
+  g_test_queue_unref (mask);
+
+  theme_pixbuf_render (pixbuf,
+                       GTK_TYPE_BUTTON,
+                       drawable,
+                       mask,
+                       &clip_rect,
+                       COMPONENT_ALL,
+                       FALSE, /* FIXME: test with TRUE as well */
+                       0, 0,
+                       200, 200);
+
+  result = gdk_pixbuf_get_from_drawable (NULL, drawable,
+                                         gdk_drawable_get_colormap (drawable),
+                                         100, 100, 0, 0, 100, 100);
+  g_test_queue_unref (result);
+
+  expected = gdk_pixbuf_new_from_file (TOP_SRCDIR G_DIR_SEPARATOR_S "tests" G_DIR_SEPARATOR_S "theme-pixbuf-render-clipped.png", &error);
+  g_assert_no_error (error);
+  g_test_queue_unref (expected);
+
+  assert_cmp_pixbuf (result, ==, expected);
 }
 
 void
diff --git a/tests/theme-pixbuf-render-clipped.png b/tests/theme-pixbuf-render-clipped.png
new file mode 100644
index 0000000..2066422
Binary files /dev/null and b/tests/theme-pixbuf-render-clipped.png differ