skia2/tools/viewer/SkottySlide.cpp
Florin Malita aa4dc62139 [skotty] Clip/scale/center animations in Viewer
Animations have explicit bounds.  Updated Viewer to map the animation
to its full viewport.

TBR=
Change-Id: I5a016cace8ae97e9b4f0b93261fcfb4993ea2307
Reviewed-on: https://skia-review.googlesource.com/90263
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2018-01-02 21:25:16 +00:00

83 lines
2.2 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkottySlide.h"
#include "SkAnimTimer.h"
#include "SkCanvas.h"
#include "Skotty.h"
#include "SkStream.h"
SkottySlide::SkottySlide(const SkString& name, const SkString& path)
: fPath(path) {
fName = name;
}
void SkottySlide::load(SkScalar, SkScalar) {
auto stream = SkStream::MakeFromFile(fPath.c_str());
fAnimation = skotty::Animation::Make(stream.get());
fTimeBase = 0; // force a time reset
if (fAnimation) {
SkDebugf("loaded Bodymovin animation v: %s, size: [%f %f], fr: %f\n",
fAnimation->version().c_str(),
fAnimation->size().width(),
fAnimation->size().height(),
fAnimation->frameRate());
} else {
SkDebugf("failed to load Bodymovin animation: %s\n", fPath.c_str());
}
}
void SkottySlide::unload() {
fAnimation.reset();
}
SkISize SkottySlide::getDimensions() const {
return fAnimation? fAnimation->size().toCeil() : SkISize::Make(0, 0);
}
void SkottySlide::draw(SkCanvas* canvas) {
if (fAnimation) {
SkAutoCanvasRestore acr(canvas, true);
const auto animationBounds = SkRect::Make(fAnimation->size().toCeil());
canvas->concat(SkMatrix::MakeRectToRect(animationBounds,
SkRect::Make(canvas->imageInfo().bounds()),
SkMatrix::kCenter_ScaleToFit));
canvas->clipRect(animationBounds);
fAnimation->render(canvas);
}
}
bool SkottySlide::animate(const SkAnimTimer& timer) {
if (fTimeBase == 0) {
// Reset the animation time.
fTimeBase = timer.msec();
}
if (fAnimation) {
auto t = timer.msec() - fTimeBase;
fAnimation->animationTick(t);
}
return true;
}
bool SkottySlide::onChar(SkUnichar c) {
switch (c) {
case 'I':
if (fAnimation) {
fShowAnimationInval = !fShowAnimationInval;
fAnimation->setShowInval(fShowAnimationInval);
}
break;
default:
break;
}
return INHERITED::onChar(c);
}