skia2/samplecode/GMSampleView.cpp

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/*
* 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 "GMSampleView.h"
GMSampleView::GMSampleView(GM* gm) : fShowSize(false), fGM(gm) {}
GMSampleView::~GMSampleView() {
delete fGM;
}
SkEvent* GMSampleView::NewShowSizeEvt(bool doShowSize) {
SkEvent* evt = new SkEvent("GMSampleView::showSize");
evt->setFast32(doShowSize);
return evt;
}
bool GMSampleView::onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SkString name("GM:");
name.append(fGM->getName());
SampleCode::TitleR(evt, name.c_str());
return true;
}
return this->INHERITED::onQuery(evt);
}
bool GMSampleView::onEvent(const SkEvent& evt) {
if (evt.isType("GMSampleView::showSize")) {
fShowSize = SkToBool(evt.getFast32());
return true;
}
return this->INHERITED::onEvent(evt);
}
#include "SkPicture.h"
#include "SkStream.h"
static sk_sp<SkPicture> round_trip_serialize(SkPicture* src) {
SkDynamicMemoryWStream stream;
src->serialize(&stream);
SkAutoTDelete<SkStream> reader(stream.detachAsStream());
return SkPicture::MakeFromStream(reader);
}
#include "SkPictureRecorder.h"
void GMSampleView::onDrawContent(SkCanvas* canvas) {
SkPictureRecorder recorder;
SkCanvas* origCanvas = canvas;
if (false) {
SkISize size = fGM->getISize();
canvas = recorder.beginRecording(SkRect::MakeIWH(size.width(), size.height()));
}
{
SkAutoCanvasRestore acr(canvas, fShowSize);
fGM->drawContent(canvas);
}
if (origCanvas != canvas) {
sk_sp<SkPicture> pic = recorder.finishRecordingAsPicture();
if (false) {
pic = round_trip_serialize(pic.get());
}
origCanvas->drawPicture(pic);
canvas = origCanvas;
}
if (fShowSize) {
SkISize size = fGM->getISize();
SkRect r = SkRect::MakeWH(SkIntToScalar(size.width()),
SkIntToScalar(size.height()));
SkPaint paint;
paint.setColor(0x40FF8833);
canvas->drawRect(r, paint);
}
}
void GMSampleView::onDrawBackground(SkCanvas* canvas) {
fGM->drawBackground(canvas);
}
bool GMSampleView::onAnimate(const SkAnimTimer& timer) {
return fGM->animate(timer);
}