2a475eae62
Many tests and examples use drawText with a guess of how long the text is in bytes, or a call to strlen(). Add a helper to SkCanvas to simplify these examples. Add another helper for SkString. R=reed@google.com Change-Id: I0204a31e938f065606f08ee7cd9a6b36db791ee2 Reviewed-on: https://skia-review.googlesource.com/13642 Commit-Queue: Cary Clark <caryclark@google.com> Reviewed-by: Cary Clark <caryclark@google.com> Reviewed-by: Mike Reed <reed@google.com> Reviewed-by: Cary Clark <caryclark@skia.org>
111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
/*
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* Copyright 2011 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 "sk_tool_utils.h"
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#include "SkShader.h"
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using namespace skiagm;
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GM::GM() {
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fMode = kGM_Mode;
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fBGColor = SK_ColorWHITE;
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fCanvasIsDeferred = false;
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fHaveCalledOnceBeforeDraw = false;
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fStarterMatrix.reset();
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}
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GM::~GM() {}
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void GM::draw(SkCanvas* canvas) {
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this->drawBackground(canvas);
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this->drawContent(canvas);
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}
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void GM::drawContent(SkCanvas* canvas) {
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if (!fHaveCalledOnceBeforeDraw) {
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fHaveCalledOnceBeforeDraw = true;
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this->onOnceBeforeDraw();
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}
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this->onDraw(canvas);
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}
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void GM::drawBackground(SkCanvas* canvas) {
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if (!fHaveCalledOnceBeforeDraw) {
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fHaveCalledOnceBeforeDraw = true;
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this->onOnceBeforeDraw();
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}
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this->onDrawBackground(canvas);
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}
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const char* GM::getName() {
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if (fShortName.size() == 0) {
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fShortName = this->onShortName();
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}
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return fShortName.c_str();
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}
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void GM::setBGColor(SkColor color) {
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fBGColor = color;
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}
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bool GM::animate(const SkAnimTimer& timer) {
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return this->onAnimate(timer);
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}
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/////////////////////////////////////////////////////////////////////////////////////////////
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void GM::onDrawBackground(SkCanvas* canvas) {
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canvas->drawColor(fBGColor, SkBlendMode::kSrc);
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}
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void GM::drawSizeBounds(SkCanvas* canvas, SkColor color) {
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SkISize size = this->getISize();
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SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()),
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SkIntToScalar(size.height()));
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SkPaint paint;
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paint.setColor(color);
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canvas->drawRect(r, paint);
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}
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void GM::DrawGpuOnlyMessage(SkCanvas* canvas) {
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SkBitmap bmp;
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bmp.allocN32Pixels(128, 64);
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SkCanvas bmpCanvas(bmp);
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bmpCanvas.drawColor(SK_ColorWHITE);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setTextSize(20);
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paint.setColor(SK_ColorRED);
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sk_tool_utils::set_portable_typeface(&paint);
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constexpr char kTxt[] = "GPU Only";
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bmpCanvas.drawString(kTxt, 20, 40, paint);
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SkMatrix localM;
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localM.setRotate(35.f);
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localM.postTranslate(10.f, 0.f);
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paint.setShader(SkShader::MakeBitmapShader(bmp, SkShader::kMirror_TileMode,
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SkShader::kMirror_TileMode,
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&localM));
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paint.setFilterQuality(kMedium_SkFilterQuality);
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canvas->drawPaint(paint);
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return;
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}
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// need to explicitly declare this, or we get some weird infinite loop llist
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template GMRegistry* GMRegistry::gHead;
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void skiagm::SimpleGM::onDraw(SkCanvas* canvas) {
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fDrawProc(canvas);
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}
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SkISize skiagm::SimpleGM::onISize() {
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return fSize;
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}
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SkString skiagm::SimpleGM::onShortName() {
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return fName;
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}
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