FrameNumber onGetFrame(Editor* editor) override {
FrameNumber frame = editor->frame();
if (frame < editor->sprite()->lastFrame())
return frame.next();
else
return FrameNumber(0);
}
raster::FrameNumber calculate_next_frame(
raster::Sprite* sprite,
raster::FrameNumber frame,
IDocumentSettings* docSettings,
bool& pingPongForward)
{
FrameNumber first = FrameNumber(0);
FrameNumber last = sprite->getLastFrame();
if (docSettings->getLoopAnimation()) {
FrameNumber loopBegin, loopEnd;
docSettings->getLoopRange(&loopBegin, &loopEnd);
if (loopBegin < first) loopBegin = first;
if (loopEnd > last) loopEnd = last;
first = loopBegin;
last = loopEnd;
}
switch (docSettings->getAnimationDirection()) {
case IDocumentSettings::AniDir_Normal:
frame = frame.next();
if (frame > last) frame = first;
break;
case IDocumentSettings::AniDir_Reverse:
frame = frame.previous();
if (frame < first) frame = last;
break;
case IDocumentSettings::AniDir_PingPong:
if (pingPongForward) {
frame = frame.next();
if (frame > last) {
frame = last.previous();
if (frame < first) frame = first;
pingPongForward = false;
}
}
else {
frame = frame.previous();
if (frame < first) {
frame = first.next();
if (frame > last) frame = last;
pingPongForward = true;
}
}
break;
}
return frame;
}
