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/*
* 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 "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);
SkScalar hoffset = rand.nextSScalar1();
SkScalar woffset = rand.nextSScalar1();
r->set(x, y, x + w, y + h);
r->offset(-w/2 + woffset, -h/2 + hoffset);
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) {
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);
}
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