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/*
* Copyright 2014 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 "SkImageFilter.h"
#include "SkRandom.h"
#define WIDTH 640
#define HEIGHT 480
#define RESIZE_FACTOR SkIntToScalar(2)
namespace skiagm {
class ImageResizeTiledGM : public GM {
public:
ImageResizeTiledGM() {
}
protected:
SkString onShortName() override {
return SkString("imageresizetiled");
}
SkISize onISize() override {
return SkISize::Make(WIDTH, HEIGHT);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
SkMatrix matrix;
matrix.setScale(RESIZE_FACTOR, RESIZE_FACTOR);
SkAutoTUnref<SkImageFilter> imageFilter(
SkImageFilter::CreateMatrixFilter(matrix, kNone_SkFilterQuality));
paint.setImageFilter(imageFilter.get());
const SkScalar tile_size = SkIntToScalar(100);
SkRect bounds;
canvas->getClipBounds(&bounds);
for (SkScalar y = 0; y < HEIGHT; y += tile_size) {
for (SkScalar x = 0; x < WIDTH; x += tile_size) {
canvas->save();
canvas->clipRect(SkRect::MakeXYWH(x, y, tile_size, tile_size));
canvas->scale(SkScalarInvert(RESIZE_FACTOR),
SkScalarInvert(RESIZE_FACTOR));
canvas->saveLayer(nullptr, &paint);
const char* str[] = {
"The quick",
"brown fox",
"jumped over",
"the lazy dog.",
};
SkPaint textPaint;
textPaint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&textPaint);
textPaint.setTextSize(SkIntToScalar(100));
int posY = 0;
for (unsigned i = 0; i < SK_ARRAY_COUNT(str); i++) {
posY += 100;
canvas->drawText(str[i], strlen(str[i]), SkIntToScalar(0),
SkIntToScalar(posY), textPaint);
}
canvas->restore();
canvas->restore();
}
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ImageResizeTiledGM(); )
}
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