8ceee43de4
Bug: skia: Change-Id: Ie31a3c764e4f88f2b08f4198bd253841a2d8c264 Reviewed-on: https://skia-review.googlesource.com/79100 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
/*
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* Copyright 2016 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 "SampleCode.h"
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#include "SkCanvas.h"
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#include "SkString.h"
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#if SK_SUPPORT_GPU
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# include "GrContext.h"
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#else
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class GrContext;
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#endif
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//////////////////////////////////////////////////////////////////////////////
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bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
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if (evt.isType(gCharEvtName)) {
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if (outUni) {
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*outUni = evt.getFast32();
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}
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return true;
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}
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return false;
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}
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bool SampleCode::TitleQ(const SkEvent& evt) {
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return evt.isType(gTitleEvtName);
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}
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void SampleCode::TitleR(SkEvent* evt, const char title[]) {
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SkASSERT(evt && TitleQ(*evt));
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evt->setString(gTitleEvtName, title);
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}
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bool SampleCode::RequestTitle(SkView* view, SkString* title) {
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SkEvent evt(gTitleEvtName);
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if (view->doQuery(&evt)) {
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title->set(evt.findString(gTitleEvtName));
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return true;
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}
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return false;
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}
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SkViewRegister* SkViewRegister::gHead;
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SkViewRegister::SkViewRegister(SkViewFactory* fact) : fFact(fact) {
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fFact->ref();
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fChain = gHead;
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gHead = this;
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}
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///////////////////////////////////////////////////////////////////////////////
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SkFuncViewFactory::SkFuncViewFactory(SkViewCreateFunc func)
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: fCreateFunc(func) {
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}
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SkView* SkFuncViewFactory::operator() () const {
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return (*fCreateFunc)();
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}
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SkViewRegister::SkViewRegister(SkViewCreateFunc func) {
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fFact = new SkFuncViewFactory(func);
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fChain = gHead;
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gHead = this;
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}
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///////////////////////////////////////////////////////////////////////////////
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static const char is_sample_view_tag[] = "sample-is-sample-view";
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bool SampleView::IsSampleView(SkView* view) {
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SkEvent evt(is_sample_view_tag);
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return view->doQuery(&evt);
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}
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bool SampleView::onQuery(SkEvent* evt) {
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if (evt->isType(is_sample_view_tag)) {
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void SampleView::onDraw(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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SkAutoCanvasRestore acr(canvas, true);
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this->onDrawContent(canvas);
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#if SK_SUPPORT_GPU
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// Ensure the GrContext doesn't combine GrDrawOps across draw loops.
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if (GrContext* context = canvas->getGrContext()) {
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context->flush();
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}
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#endif
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}
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void SampleView::onDrawBackground(SkCanvas* canvas) {
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canvas->drawColor(fBGColor);
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}
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