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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 "SkCanvas.h"
namespace skiagm {
#define TEXT_SIZE 48
static const char gText[] = "Hello";
static const size_t gLen = sizeof(gText) - 1;
class VertTextGM : public GM {
public:
VertTextGM() {}
protected:
SkString onShortName() {
return SkString("verttext");
}
SkISize onISize() { return make_isize(640, 480); }
static void drawBaseline(SkCanvas* canvas, const SkPaint& paint,
SkScalar x, SkScalar y) {
SkScalar total = paint.measureText(gText, gLen);
SkPaint p;
p.setAntiAlias(true);
p.setColor(0x80FF0000);
canvas->drawLine(x, y,
paint.isVerticalText() ? x : x + total,
paint.isVerticalText() ? y + total : y,
p);
p.setColor(0xFF0000FF);
SkScalar adv[gLen];
paint.getTextWidths(gText, gLen, adv, NULL);
for (size_t i = 0; i < gLen; ++i) {
canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
if (paint.isVerticalText()) {
y += adv[i];
} else {
x += adv[i];
}
}
canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
}
virtual void onDraw(SkCanvas* canvas) {
SkScalar x = SkIntToScalar(100);
SkScalar y = SkIntToScalar(50);
for (int i = 0; i < 4; ++i) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(TEXT_SIZE));
paint.setVerticalText(false);
drawBaseline(canvas, paint, x, y);
canvas->drawText(gText, gLen, x, y, paint);
paint.setVerticalText(true);
drawBaseline(canvas, paint, x, y);
canvas->drawText(gText, gLen, x, y, paint);
x += SkIntToScalar(40);
y += SkIntToScalar(120);
canvas->rotate(SkIntToScalar(-15));
}
}
private:
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new VertTextGM; }
static GMRegistry reg(MyFactory);
}
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