зеркало из https://github.com/mozilla/moz-skia.git
114 строки
3.5 KiB
C++
114 строки
3.5 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkBitmapDevice.h"
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#include "SkTypeface.h"
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namespace skiagm {
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class DevicePropertiesGM : public GM {
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public:
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DevicePropertiesGM() {
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this->setBGColor(0xFFFFFFFF);
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}
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virtual ~DevicePropertiesGM() {
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}
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protected:
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virtual SkString onShortName() {
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return SkString("deviceproperties");
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}
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virtual SkISize onISize() {
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return make_isize(1450, 750);
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}
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static void rotate_about(SkCanvas* canvas,
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SkScalar degrees,
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SkScalar px, SkScalar py) {
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canvas->translate(px, py);
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canvas->rotate(degrees);
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canvas->translate(-px, -py);
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}
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virtual void onDraw(SkCanvas* originalCanvas) {
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SkISize size = this->getISize();
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SkBitmap bitmap;
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bitmap.allocN32Pixels(size.width(), size.height());
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SkDeviceProperties properties = SkDeviceProperties::Make(
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SkDeviceProperties::Geometry::Make(SkDeviceProperties::Geometry::kVertical_Orientation,
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SkDeviceProperties::Geometry::kBGR_Layout),
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SK_Scalar1);
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SkBitmapDevice device(bitmap, properties);
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SkCanvas canvas(&device);
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canvas.drawColor(SK_ColorWHITE);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setLCDRenderText(true);
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//With freetype the default (normal hinting) can be really ugly.
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//Most distros now set slight (vertical hinting only) in any event.
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paint.setHinting(SkPaint::kSlight_Hinting);
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SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal)));
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const char* text = "Hamburgefons ooo mmm";
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const size_t textLen = strlen(text);
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for (int j = 0; j < 2; ++j) {
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for (int i = 0; i < 6; ++i) {
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SkScalar x = SkIntToScalar(10);
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SkScalar y = SkIntToScalar(20);
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SkAutoCanvasRestore acr(&canvas, true);
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canvas.translate(SkIntToScalar(50 + i * 230),
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SkIntToScalar(20));
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rotate_about(&canvas, SkIntToScalar(i * 5), x, y * 10);
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{
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SkPaint p;
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p.setAntiAlias(true);
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SkRect r;
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r.set(x - SkIntToScalar(3), SkIntToScalar(15),
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x - SkIntToScalar(1), SkIntToScalar(280));
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canvas.drawRect(r, p);
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}
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int index = 0;
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for (int ps = 6; ps <= 22; ps++) {
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paint.setTextSize(SkIntToScalar(ps));
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canvas.drawText(text, textLen, x, y, paint);
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y += paint.getFontMetrics(NULL);
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index += 1;
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}
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}
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canvas.translate(0, SkIntToScalar(360));
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paint.setSubpixelText(true);
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}
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originalCanvas->drawBitmap(bitmap, 0, 0);
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}
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#ifdef SK_BUILD_FOR_ANDROID
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virtual uint32_t onGetFlags() const SK_OVERRIDE {
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// On android, we fail due to bad gpu drivers (it seems) by adding too
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// much to our text atlas (texture).
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return kSkipGPU_Flag;
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}
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#endif
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new DevicePropertiesGM; }
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static GMRegistry reg(MyFactory);
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}
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