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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"
namespace skiagm {
// Draw various width thin rects at 1/8 horizontal pixel increments
class ThinRectsGM : public GM {
public:
ThinRectsGM() {
this->setBGColor(0xFF000000);
}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return SkString("thinrects");
}
virtual SkISize onISize() SK_OVERRIDE {
return make_isize(240, 320);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint white;
white.setColor(SK_ColorWHITE);
white.setAntiAlias(true);
SkPaint green;
green.setColor(SK_ColorGREEN);
green.setAntiAlias(true);
for (int i = 0; i < 8; ++i) {
canvas->save();
canvas->translate(i*0.125f, i*40.0f);
DrawVertRects(canvas, white);
canvas->translate(40.0f, 0.0f);
DrawVertRects(canvas, green);
canvas->restore();
canvas->save();
canvas->translate(80.0f, i*40.0f + i*0.125f);
DrawHorizRects(canvas, white);
canvas->translate(40.0f, 0.0f);
DrawHorizRects(canvas, green);
canvas->restore();
canvas->save();
canvas->translate(160.0f + i*0.125f,
i*40.0f + i*0.125f);
DrawSquares(canvas, white);
canvas->translate(40.0f, 0.0f);
DrawSquares(canvas, green);
canvas->restore();
}
}
private:
static void DrawVertRects(SkCanvas* canvas, const SkPaint& p) {
static const SkRect vertRects[] = {
{ 1, 1, 5.0f, 21 }, // 4 pix wide
{ 8, 1, 10.0f, 21 }, // 2 pix wide
{ 13, 1, 14.0f, 21 }, // 1 pix wide
{ 17, 1, 17.5f, 21 }, // 1/2 pix wide
{ 21, 1, 21.25f, 21 }, // 1/4 pix wide
{ 25, 1, 25.125f, 21 }, // 1/8 pix wide
{ 29, 1, 29.0f, 21 } // 0 pix wide
};
for (size_t j = 0; j < SK_ARRAY_COUNT(vertRects); ++j) {
canvas->drawRect(vertRects[j], p);
}
}
static void DrawHorizRects(SkCanvas* canvas, const SkPaint& p) {
static const SkRect horizRects[] = {
{ 1, 1, 21, 5.0f }, // 4 pix high
{ 1, 8, 21, 10.0f }, // 2 pix high
{ 1, 13, 21, 14.0f }, // 1 pix high
{ 1, 17, 21, 17.5f }, // 1/2 pix high
{ 1, 21, 21, 21.25f }, // 1/4 pix high
{ 1, 25, 21, 25.125f }, // 1/8 pix high
{ 1, 29, 21, 29.0f } // 0 pix high
};
for (size_t j = 0; j < SK_ARRAY_COUNT(horizRects); ++j) {
canvas->drawRect(horizRects[j], p);
}
}
static void DrawSquares(SkCanvas* canvas, const SkPaint& p) {
static const SkRect squares[] = {
{ 1, 1, 5.0f, 5.0f }, // 4 pix
{ 8, 8, 10.0f, 10.0f }, // 2 pix
{ 13, 13, 14.0f, 14.0f }, // 1 pix
{ 17, 17, 17.5f, 17.5f }, // 1/2 pix
{ 21, 21, 21.25f, 21.25f }, // 1/4 pix
{ 25, 25, 25.125f, 25.125f }, // 1/8 pix
{ 29, 29, 29.0f, 29.0f } // 0 pix
};
for (size_t j = 0; j < SK_ARRAY_COUNT(squares); ++j) {
canvas->drawRect(squares[j], p);
}
}
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new ThinRectsGM; }
static GMRegistry reg(MyFactory);
}
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