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/*
* Copyright 2013 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 "SkBlurDrawLooper.h"
#include "SkBlurMask.h"
#include "SkBlurMaskFilter.h"
#include "SkColorFilter.h"
#include "SkGradientShader.h"
#include "SkMatrix.h"
#include "SkTArray.h"
namespace skiagm {
class RectsGM : public GM {
public:
RectsGM() {
this->setBGColor(0xFF000000);
this->makePaints();
this->makeMatrices();
this->makeRects();
}
protected:
SkString onShortName() override {
return SkString("rects");
}
SkISize onISize() override {
return SkISize::Make(1200, 900);
}
void makePaints() {
{
// no AA
SkPaint p;
p.setColor(SK_ColorWHITE);
fPaints.push_back(p);
}
{
// AA
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
fPaints.push_back(p);
}
{
// AA with translucent
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setAlpha(0x66);
fPaints.push_back(p);
}
{
// AA with mask filter
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setMaskFilter(SkBlurMaskFilter::Make(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
SkBlurMaskFilter::kHighQuality_BlurFlag));
fPaints.push_back(p);
}
{
// AA with radial shader
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
SkPoint center = SkPoint::Make(SkIntToScalar(-5), SkIntToScalar(30));
SkColor colors[] = { SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN };
SkScalar pos[] = { 0, SK_ScalarHalf, SK_Scalar1 };
p.setShader(SkGradientShader::MakeRadial(center, 20, colors, pos,
SK_ARRAY_COUNT(colors),
SkShader::kClamp_TileMode));
fPaints.push_back(p);
}
{
// AA with blur
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setLooper(SkBlurDrawLooper::Make(SK_ColorWHITE,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
SkIntToScalar(5), SkIntToScalar(10)));
fPaints.push_back(p);
}
{
// AA with stroke style
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SkIntToScalar(3));
fPaints.push_back(p);
}
{
// AA with bevel-stroke style
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeJoin(SkPaint::kBevel_Join);
p.setStrokeWidth(SkIntToScalar(3));
fPaints.push_back(p);
}
{
// AA with round-stroke style
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeJoin(SkPaint::kRound_Join);
p.setStrokeWidth(SkIntToScalar(3));
fPaints.push_back(p);
}
{
// AA with stroke style, width = 0
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
fPaints.push_back(p);
}
{
// AA with stroke style, width wider than rect width and/or height
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SkIntToScalar(40));
fPaints.push_back(p);
}
{
// AA with stroke and fill style
SkPaint p;
p.setColor(SK_ColorWHITE);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStrokeAndFill_Style);
p.setStrokeWidth(SkIntToScalar(2));
fPaints.push_back(p);
}
}
void makeMatrices() {
{
// 1x1.5 scale
SkMatrix m;
m.setScale(1, 1.5f);
fMatrices.push_back(m);
}
{
// 1.5x1.5 scale
SkMatrix m;
m.setScale(1.5f, 1.5f);
fMatrices.push_back(m);
}
{
// 1x1.5 skew
SkMatrix m;
m.setSkew(1, 1.5f);
fMatrices.push_back(m);
}
{
// 1.5x1.5 skew
SkMatrix m;
m.setSkew(1.5f, 1.5f);
fMatrices.push_back(m);
}
{
// 30 degree rotation
SkMatrix m;
m.setRotate(SkIntToScalar(30));
fMatrices.push_back(m);
}
{
// 90 degree rotation
SkMatrix m;
m.setRotate(SkIntToScalar(90));
fMatrices.push_back(m);
}
}
void makeRects() {
{
// small square
SkRect r = SkRect::MakeLTRB(0, 0, 30, 30);
fRects.push_back(r);
}
{
// thin vertical
SkRect r = SkRect::MakeLTRB(0, 0, 2, 40);
fRects.push_back(r);
}
{
// thin horizontal
SkRect r = SkRect::MakeLTRB(0, 0, 40, 2);
fRects.push_back(r);
}
{
// very thin
SkRect r = SkRect::MakeLTRB(0, 0, 0.25f, 10);
fRects.push_back(r);
}
{
// zaftig
SkRect r = SkRect::MakeLTRB(0, 0, 60, 60);
fRects.push_back(r);
}
}
// position the current test on the canvas
static void position(SkCanvas* canvas, int testCount) {
canvas->translate(SK_Scalar1 * 100 * (testCount % 10) + SK_Scalar1 / 4,
SK_Scalar1 * 100 * (testCount / 10) + 3 * SK_Scalar1 / 4);
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(20 * SK_Scalar1, 20 * SK_Scalar1);
int testCount = 0;
for (int i = 0; i < fPaints.count(); ++i) {
for (int j = 0; j < fRects.count(); ++j, ++testCount) {
canvas->save();
this->position(canvas, testCount);
canvas->drawRect(fRects[j], fPaints[i]);
canvas->restore();
}
}
SkPaint paint;
paint.setColor(SK_ColorWHITE);
paint.setAntiAlias(true);
for (int i = 0; i < fMatrices.count(); ++i) {
for (int j = 0; j < fRects.count(); ++j, ++testCount) {
canvas->save();
this->position(canvas, testCount);
canvas->concat(fMatrices[i]);
canvas->drawRect(fRects[j], paint);
canvas->restore();
}
}
}
private:
SkTArray<SkPaint> fPaints;
SkTArray<SkMatrix> fMatrices;
SkTArray<SkRect> fRects;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new RectsGM; }
static GMRegistry reg(MyFactory);
}
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