add
git-svn-id: http://skia.googlecode.com/svn/trunk@1645 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/strokes.cpp b/gm/strokes.cpp
new file mode 100644
index 0000000..7b44ff9
--- /dev/null
+++ b/gm/strokes.cpp
@@ -0,0 +1,156 @@
+/*
+ Copyright 2011 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+
+#include "gm.h"
+#include "SkRandom.h"
+
+namespace skiagm {
+
+#define W 400
+#define H 400
+#define N 50
+
+static const SkScalar SW = SkIntToScalar(W);
+static const SkScalar SH = SkIntToScalar(H);
+
+static void rnd_rect(SkRect* r, SkPaint* paint, SkRandom& rand) {
+ SkScalar x = rand.nextUScalar1() * W;
+ SkScalar y = rand.nextUScalar1() * H;
+ SkScalar w = rand.nextUScalar1() * (W >> 2);
+ SkScalar h = rand.nextUScalar1() * (H >> 2);
+
+ r->set(x, y, x + w, y + h);
+ r->offset(-w/2 + rand.nextSScalar1(), -h/2 + + rand.nextSScalar1());
+
+ paint->setColor(rand.nextU());
+ paint->setAlpha(0xFF);
+}
+
+
+class StrokesGM : public GM {
+public:
+ StrokesGM() {}
+
+protected:
+ virtual SkString onShortName() {
+ return SkString("strokes_round");
+ }
+
+ virtual SkISize onISize() {
+ return make_isize(W, H*2);
+ }
+
+ virtual void onDraw(SkCanvas* canvas) {
+ canvas->drawColor(SK_ColorWHITE);
+
+ SkPaint paint;
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setStrokeWidth(SkIntToScalar(9)/2);
+
+ for (int y = 0; y < 2; y++) {
+ paint.setAntiAlias(!!y);
+ SkAutoCanvasRestore acr(canvas, true);
+ canvas->translate(0, SH * y);
+ canvas->clipRect(SkRect::MakeLTRB(
+ SkIntToScalar(2), SkIntToScalar(2)
+ , SW - SkIntToScalar(2), SH - SkIntToScalar(2)
+ ));
+
+ SkRandom rand;
+ for (int i = 0; i < N; i++) {
+ SkRect r;
+ rnd_rect(&r, &paint, rand);
+ canvas->drawOval(r, paint);
+ rnd_rect(&r, &paint, rand);
+ canvas->drawRoundRect(r, r.width()/4, r.height()/4, paint);
+ rnd_rect(&r, &paint, rand);
+ }
+ }
+ }
+
+private:
+ typedef GM INHERITED;
+};
+
+class Strokes2GM : public GM {
+ SkPath fPath;
+public:
+ Strokes2GM() {
+ SkRandom rand;
+ fPath.moveTo(0, 0);
+ for (int i = 0; i < 13; i++) {
+ SkScalar x = rand.nextUScalar1() * (W >> 1);
+ SkScalar y = rand.nextUScalar1() * (H >> 1);
+ fPath.lineTo(x, y);
+ }
+ }
+
+protected:
+ virtual SkString onShortName() {
+ return SkString("strokes_poly");
+ }
+
+ virtual SkISize onISize() {
+ return make_isize(W, H*2);
+ }
+
+ static void rotate(SkScalar angle, SkScalar px, SkScalar py, SkCanvas* canvas) {
+ SkMatrix matrix;
+ matrix.setRotate(angle, px, py);
+ canvas->concat(matrix);
+ }
+
+ virtual void onDraw(SkCanvas* canvas) {
+ canvas->drawColor(SK_ColorWHITE);
+
+ SkPaint paint;
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setStrokeWidth(SkIntToScalar(9)/2);
+
+ for (int y = 0; y < 2; y++) {
+ paint.setAntiAlias(!!y);
+ SkAutoCanvasRestore acr(canvas, true);
+ canvas->translate(0, SH * y);
+ canvas->clipRect(SkRect::MakeLTRB(SkIntToScalar(2),
+ SkIntToScalar(2),
+ SW - SkIntToScalar(2),
+ SH - SkIntToScalar(2)));
+
+ SkRandom rand;
+ for (int i = 0; i < N/2; i++) {
+ SkRect r;
+ rnd_rect(&r, &paint, rand);
+ rotate(SkIntToScalar(15), SW/2, SH/2, canvas);
+ canvas->drawPath(fPath, paint);
+ }
+ }
+ }
+
+private:
+ typedef GM INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new StrokesGM; }
+static GMRegistry reg(MyFactory);
+
+static GM* MyFactory2(void*) { return new Strokes2GM; }
+static GMRegistry reg2(MyFactory2);
+
+}
+