check-point for aaclip

git-svn-id: http://skia.googlecode.com/svn/trunk@2413 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 94 insertions, 0 deletions

diff --git a/samplecode/SampleAAClip.cpp b/samplecode/SampleAAClip.cpp
new file mode 100644
index 0000000000..dd6af09253
--- /dev/null
+++ b/samplecode/SampleAAClip.cpp
@@ -0,0 +1,94 @@
+
+/*
+ * 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 "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkAAClip.h"
+
+static void drawClip(SkCanvas* canvas, const SkAAClip& clip) {
+    SkMask mask;
+    SkBitmap bm;
+    
+    clip.copyToMask(&mask);
+    bm.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(),
+                 mask.fBounds.height(), mask.fRowBytes);
+    bm.setPixels(mask.fImage);
+
+    SkPaint paint;
+    canvas->drawBitmap(bm, mask.fBounds.fLeft, mask.fBounds.fTop, &paint);
+}
+
+class AAClipView : public SampleView {
+public:
+    AAClipView() {
+    }
+
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "AAClip");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+
+    virtual void onDrawContent(SkCanvas* canvas) {
+#if 1
+        SkAAClip aaclip;
+        SkPath path;
+        SkRect bounds;
+        
+        bounds.set(0, 0, 20, 20);
+        bounds.inset(SK_ScalarHalf, SK_ScalarHalf);
+
+//        path.addRect(bounds);
+//        path.addOval(bounds);
+        path.addRoundRect(bounds, 4, 4);
+        aaclip.setPath(path);
+        canvas->translate(30, 30);
+        drawClip(canvas, aaclip);
+
+        SkAAClip aaclip2;
+        path.offset(10, 10);
+        aaclip2.setPath(path);
+        canvas->translate(30, 0);
+        drawClip(canvas, aaclip2);
+
+        SkAAClip aaclip3;
+        aaclip3.op(aaclip, aaclip2, SkRegion::kIntersect_Op);
+        canvas->translate(30, 0);
+        drawClip(canvas, aaclip3);
+        
+#endif
+        
+#if 0
+        SkRect r;
+        r.set(0, 0, this->width(), this->height());
+        r.inset(20, 20);
+        canvas->clipRect(r);
+        
+        SkPath path;
+        path.addRect(r);
+        SkPaint paint;
+        paint.setAntiAlias(true);
+        paint.setColor(SK_ColorRED);
+        canvas->drawPath(path, paint);
+#endif
+    }
+
+private:
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new AAClipView; }
+static SkViewRegister reg(MyFactory);
+