add gm for reverseAddPath

git-svn-id: http://skia.googlecode.com/svn/trunk@3001 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 118 insertions, 0 deletions

diff --git a/gm/pathreverse.cpp b/gm/pathreverse.cpp
new file mode 100644
index 0000000000..fc8028eb08
--- /dev/null
+++ b/gm/pathreverse.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gm.h"
+#include "SkCanvas.h"
+#include "SkPath.h"
+#include "SkTypeface.h"
+
+static void test_path(SkCanvas* canvas, const SkPath& path) {
+    SkPaint paint;
+    paint.setAntiAlias(true);
+    canvas->drawPath(path, paint);
+    
+    paint.setStyle(SkPaint::kStroke_Style);
+    paint.setColor(SK_ColorRED);
+    canvas->drawPath(path, paint);
+}
+
+static void test_rev(SkCanvas* canvas, const SkPath& path) {
+    test_path(canvas, path);
+
+    SkPath rev;
+    rev.reverseAddPath(path);
+    canvas->save();
+    canvas->translate(150, 0);
+    test_path(canvas, rev);
+    canvas->restore();
+}
+
+static void test_rev(SkCanvas* canvas) {
+    SkRect r = { 10, 10, 100, 60 };
+
+    SkPath path;
+
+    path.addRect(r); test_rev(canvas, path);
+
+    canvas->translate(0, 100);
+    path.offset(20, 20);
+    path.addRect(r); test_rev(canvas, path);
+
+    canvas->translate(0, 100);
+    path.reset();
+    path.moveTo(10, 10); path.lineTo(30, 30);
+    path.addOval(r);
+    r.offset(50, 20);
+    path.addOval(r);
+    test_rev(canvas, path);
+
+    SkPaint paint;
+    paint.setTextSize(SkIntToScalar(100));
+    SkTypeface* hira = SkTypeface::CreateFromName("Hiragino Maru Gothic Pro", SkTypeface::kNormal);
+    SkSafeUnref(paint.setTypeface(hira));
+    path.reset();
+    paint.getTextPath("e", 1, 50, 50, &path);
+    canvas->translate(0, 100);
+    test_rev(canvas, path);
+}
+
+namespace skiagm {
+
+class PathReverseGM : public GM {
+public:
+    PathReverseGM() {
+
+    }
+
+protected:
+    virtual SkString onShortName() {
+        return SkString("path-reverse");
+    }
+
+    virtual SkISize onISize() {
+        return make_isize(640, 480);
+    }
+
+    virtual void onDraw(SkCanvas* canvas) {
+        SkRect r = { 10, 10, 100, 60 };
+        
+        SkPath path;
+        
+        path.addRect(r); test_rev(canvas, path);
+        
+        canvas->translate(0, 100);
+        path.offset(20, 20);
+        path.addRect(r); test_rev(canvas, path);
+        
+        canvas->translate(0, 100);
+        path.reset();
+        path.moveTo(10, 10); path.lineTo(30, 30);
+        path.addOval(r);
+        r.offset(50, 20);
+        path.addOval(r);
+        test_rev(canvas, path);
+        
+        SkPaint paint;
+        paint.setTextSize(SkIntToScalar(100));
+        SkTypeface* hira = SkTypeface::CreateFromName("Hiragino Maru Gothic Pro", SkTypeface::kNormal);
+        SkSafeUnref(paint.setTypeface(hira));
+        path.reset();
+        paint.getTextPath("e", 1, 50, 50, &path);
+        canvas->translate(0, 100);
+        test_rev(canvas, path);
+    }
+
+private:
+    typedef GM INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new PathReverseGM; }
+static GMRegistry reg(MyFactory);
+
+}