skia2/tools/viewer/SkottieSlide.cpp
Florin Malita 1022f74375 [skottie] Nested animation support
Extend composition layers to support referencing external .json
animations ("$"<PATH> syntax).

This is a custom extension (not supported in BM/Lottie).

Also make skottie::Animation ref-counted, to facilitate sharing.

TBR=

Change-Id: I062d031e5868d759f3930dea9b261f9b3ec81684
Reviewed-on: https://skia-review.googlesource.com/109806
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2018-02-23 19:15:26 +00:00

93 lines
2.3 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 "SkottieSlide.h"
#include "SkAnimTimer.h"
#include "SkCanvas.h"
#include "Skottie.h"
SkottieSlide::SkottieSlide(const SkString& name, const SkString& path)
: fPath(path) {
fName = name;
}
void SkottieSlide::load(SkScalar w, SkScalar h) {
fAnimation = skottie::Animation::MakeFromFile(fPath.c_str());
fWinSize = SkSize::Make(w, h);
fTimeBase = 0; // force a time reset
if (fAnimation) {
fAnimation->setShowInval(fShowAnimationInval);
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 SkottieSlide::unload() {
fAnimation.reset();
}
SkISize SkottieSlide::getDimensions() const {
// We always scale to fill the window.
return fWinSize.toCeil();
}
void SkottieSlide::draw(SkCanvas* canvas) {
if (fAnimation) {
SkAutoCanvasRestore acr(canvas, true);
const auto dstR = SkRect::MakeSize(fWinSize);
fAnimation->render(canvas, &dstR);
}
}
bool SkottieSlide::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 SkottieSlide::onChar(SkUnichar c) {
switch (c) {
case 'I':
if (fAnimation) {
fShowAnimationInval = !fShowAnimationInval;
fAnimation->setShowInval(fShowAnimationInval);
}
break;
default:
break;
}
return INHERITED::onChar(c);
}
bool SkottieSlide::onMouse(SkScalar x, SkScalar y, sk_app::Window::InputState state, uint32_t) {
switch (state) {
case sk_app::Window::kUp_InputState:
fShowAnimationInval = !fShowAnimationInval;
fAnimation->setShowInval(fShowAnimationInval);
break;
default:
break;
}
return false;
}