skia2/gm/fontscaler.cpp
caryclark 37213558e6 make fontscalar gammatext lcdtext typeface verttext2 gm portable
Pass generic font names to tool util function to generate
platform specific fonts and gm test output by unique name.

R=bungeman@google.com

Review URL: https://codereview.chromium.org/1256903002
2015-07-24 11:08:01 -07:00

94 lines
2.7 KiB
C++

/*
* 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 "SkTypeface.h"
namespace skiagm {
class FontScalerGM : public GM {
public:
FontScalerGM() {
this->setBGColor(0xFFFFFFFF);
}
virtual ~FontScalerGM() {
}
protected:
SkString onShortName() override {
SkString name("fontscaler");
name.append(sk_tool_utils::major_platform_os_name());
return name;
}
SkISize onISize() override {
return SkISize::Make(1450, 750);
}
static void rotate_about(SkCanvas* canvas,
SkScalar degrees,
SkScalar px, SkScalar py) {
canvas->translate(px, py);
canvas->rotate(degrees);
canvas->translate(-px, -py);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
paint.setAntiAlias(true);
paint.setLCDRenderText(true);
//With freetype the default (normal hinting) can be really ugly.
//Most distros now set slight (vertical hinting only) in any event.
paint.setHinting(SkPaint::kSlight_Hinting);
const char* text = "Hamburgefons ooo mmm";
const size_t textLen = strlen(text);
for (int j = 0; j < 2; ++j) {
// This used to do 6 iterations but it causes the N4 to crash in the MSAA4 config.
for (int i = 0; i < 5; ++i) {
SkScalar x = SkIntToScalar(10);
SkScalar y = SkIntToScalar(20);
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(SkIntToScalar(50 + i * 230),
SkIntToScalar(20));
rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10);
{
SkPaint p;
p.setAntiAlias(true);
SkRect r;
r.set(x - SkIntToScalar(3), SkIntToScalar(15),
x - SkIntToScalar(1), SkIntToScalar(280));
canvas->drawRect(r, p);
}
for (int ps = 6; ps <= 22; ps++) {
paint.setTextSize(SkIntToScalar(ps));
canvas->drawText(text, textLen, x, y, paint);
y += paint.getFontMetrics(NULL);
}
}
canvas->translate(0, SkIntToScalar(360));
paint.setSubpixelText(true);
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new FontScalerGM; }
static GMRegistry reg(MyFactory);
}