| /* |
| * Copyright 2015 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 "Resources.h" |
| #include "SkFixed.h" |
| #include "SkFontDescriptor.h" |
| #include "SkFontMgr.h" |
| #include "SkTypeface.h" |
| |
| namespace skiagm { |
| |
| class FontScalerDistortableGM : public GM { |
| public: |
| FontScalerDistortableGM() { |
| this->setBGColor(0xFFFFFFFF); |
| } |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("fontscalerdistortable"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(550, 700); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| paint.setLCDRenderText(true); |
| SkAutoTUnref<SkFontMgr> fontMgr(SkFontMgr::RefDefault()); |
| |
| std::unique_ptr<SkStreamAsset> distortable(GetResourceAsStream("/fonts/Distortable.ttf")); |
| if (!distortable) { |
| return; |
| } |
| const char* text = "abc"; |
| const size_t textLen = strlen(text); |
| |
| for (int j = 0; j < 2; ++j) { |
| for (int i = 0; i < 5; ++i) { |
| SkScalar x = SkIntToScalar(10); |
| SkScalar y = SkIntToScalar(20); |
| |
| SkFourByteTag tag = SkSetFourByteTag('w','g','h','t'); |
| SkScalar styleValue = SkDoubleToScalar(0.5 + (5*j + i) * ((2.0 - 0.5) / (2 * 5))); |
| SkFontMgr::FontParameters::Axis axes[] = { { tag, styleValue } }; |
| paint.setTypeface(sk_sp<SkTypeface>(fontMgr->createFromStream( |
| distortable->duplicate(), SkFontMgr::FontParameters().setAxes(axes, 1)))); |
| |
| SkAutoCanvasRestore acr(canvas, true); |
| canvas->translate(SkIntToScalar(30 + i * 100), SkIntToScalar(20)); |
| canvas->rotate(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(nullptr); |
| } |
| } |
| canvas->translate(0, SkIntToScalar(360)); |
| paint.setSubpixelText(true); |
| } |
| } |
| |
| private: |
| typedef GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static GM* MyFactory(void*) { return new FontScalerDistortableGM; } |
| static GMRegistry reg(MyFactory); |
| |
| } |