Add file missing from r3682 checkin

git-svn-id: http://skia.googlecode.com/svn/trunk@3683 2bbb7eff-a529-9590-31e7-b0007b416f81

diff --git a/gm/circles.cpp b/gm/circles.cpp
new file mode 100644 (file)
index 0000000..4513934
--- /dev/null
+++ b/gm/circles.cpp
@@ -0,0 +1,205 @@
+
+/*
+ * Copyright 2012 Intel 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 "SkTArray.h"
+#include "SkRandom.h"
+#include "SkMatrix.h"
+#include "SkBlurMaskFilter.h"
+#include "SkGradientShader.h"
+#include "SkBlurDrawLooper.h"
+
+namespace skiagm {
+
+class CircleGM : public GM {
+public:
+    CircleGM() {
+        this->setBGColor(0xFF000000);
+        this->makePaints();
+        this->makeMatrices();
+    }
+
+protected:
+    virtual SkString onShortName() SK_OVERRIDE {
+        return SkString("circles");
+    }
+
+    virtual SkISize onISize() SK_OVERRIDE {
+        return make_isize(1200, 900);
+    }
+
+    void makePaints() {
+        {
+        // no AA
+        SkPaint p;
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA
+        SkPaint p;
+        p.setAntiAlias(true);
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA with mask filter
+        SkPaint p;
+        p.setAntiAlias(true);
+        SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(5),
+                               SkBlurMaskFilter::kNormal_BlurStyle,
+                               SkBlurMaskFilter::kHighQuality_BlurFlag);
+        p.setMaskFilter(mf)->unref();
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA with radial shader
+        SkPaint p;
+        p.setAntiAlias(true);
+        SkPoint center = SkPoint::Make(SkIntToScalar(40), SkIntToScalar(40));
+        SkColor colors[] = { SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN };
+        SkScalar pos[] = { 0, SK_ScalarHalf, SK_Scalar1 };
+        SkShader* s = SkGradientShader::CreateRadial(center,
+                                                     SkIntToScalar(20),
+                                                     colors,
+                                                     pos,
+                                                     SK_ARRAY_COUNT(colors),
+                                                     SkShader::kClamp_TileMode);
+        p.setShader(s)->unref();
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA with blur
+        SkPaint p;
+        p.setAntiAlias(true);
+        SkBlurDrawLooper* shadowLooper =
+            new SkBlurDrawLooper (SkIntToScalar(10), SkIntToScalar(5),
+                                  SkIntToScalar(10), 0xFF0000FF,
+                                  SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
+                                  SkBlurDrawLooper::kOverrideColor_BlurFlag |
+                                  SkBlurDrawLooper::kHighQuality_BlurFlag );
+        SkAutoUnref aurL0(shadowLooper);
+        p.setLooper(shadowLooper);
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA with stroke style
+        SkPaint p;
+        p.setAntiAlias(true);
+        p.setStyle(SkPaint::kStroke_Style);
+        p.setStrokeWidth(SkIntToScalar(3));
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA with stroke style, width = 0
+        SkPaint p;
+        p.setAntiAlias(true);
+        p.setStyle(SkPaint::kStroke_Style);
+        fPaints.push_back(p);
+        }
+
+        {
+        // AA with stroke and fill style
+        SkPaint p;
+        p.setAntiAlias(true);
+        p.setStyle(SkPaint::kStrokeAndFill_Style);
+        p.setStrokeWidth(SkIntToScalar(2));
+        fPaints.push_back(p);
+        }
+    }
+
+    void makeMatrices() {
+        {
+        SkMatrix m;
+        m.setScale(SkIntToScalar(2), SkIntToScalar(3));
+        fMatrices.push_back(m);
+        }
+
+        {
+        SkMatrix m;
+        m.setScale(SkIntToScalar(2), SkIntToScalar(2));
+        fMatrices.push_back(m);
+        }
+
+        {
+        SkMatrix m;
+        m.setSkew(SkIntToScalar(2), SkIntToScalar(3));
+        fMatrices.push_back(m);
+        }
+
+        {
+        SkMatrix m;
+        m.setSkew(SkIntToScalar(2), SkIntToScalar(2));
+        fMatrices.push_back(m);
+        }
+
+        {
+        SkMatrix m;
+        m.setRotate(SkIntToScalar(30));
+        fMatrices.push_back(m);
+        }
+    }
+
+    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+        SkRandom rand;
+        canvas->translate(20 * SK_Scalar1, 20 * SK_Scalar1);
+
+        int i;
+        for (i = 0; i < fPaints.count(); ++i) {
+            canvas->save();
+            // position the path, and make it at off-integer coords.
+            canvas->translate(SK_Scalar1 * 200 * (i % 5) + SK_Scalar1 / 4,
+                              SK_Scalar1 * 200 * (i / 5) + 3 * SK_Scalar1 / 4);
+            SkColor color = rand.nextU();
+            color |= 0xff000000;
+            fPaints[i].setColor(color);
+
+            canvas->drawCircle(SkIntToScalar(40), SkIntToScalar(40),
+                               SkIntToScalar(20),
+                               fPaints[i]);
+            canvas->restore();
+        }
+
+        for (int j = 0; j < fMatrices.count(); ++j, ++i) {
+            canvas->save();
+
+            canvas->translate(SK_Scalar1 * 200 * (i % 5) + SK_Scalar1 / 4,
+                              SK_Scalar1 * 200 * (i / 5) + 3 * SK_Scalar1 / 4);
+
+            canvas->concat(fMatrices[j]);
+
+            SkPaint paint;
+            paint.setAntiAlias(true);
+
+            SkColor color = rand.nextU();
+            color |= 0xff000000;
+            paint.setColor(color);
+
+            canvas->drawCircle(SkIntToScalar(40), SkIntToScalar(40),
+                               SkIntToScalar(20),
+                               paint);
+
+            canvas->restore();
+        }
+    }
+
+private:
+    typedef GM INHERITED;
+    SkTArray<SkPaint> fPaints;
+    SkTArray<SkMatrix> fMatrices;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new CircleGM; }
+static GMRegistry reg(MyFactory);
+
+}