void UndoTransaction::newFrameForLayer(Layer* layer, int frame)
{
ASSERT(layer);
ASSERT(frame >= 0);
switch (layer->getType()) {
case GFXOBJ_LAYER_IMAGE:
// displace all cels in '>=frame' to the next frame
for (int c=m_sprite->getTotalFrames()-1; c>=frame; --c) {
Cel* cel = static_cast<LayerImage*>(layer)->getCel(c);
if (cel)
setCelFramePosition(cel, cel->getFrame()+1);
}
copyPreviousFrame(layer, frame);
break;
case GFXOBJ_LAYER_FOLDER: {
LayerIterator it = static_cast<LayerFolder*>(layer)->get_layer_begin();
LayerIterator end = static_cast<LayerFolder*>(layer)->get_layer_end();
for (; it != end; ++it)
newFrameForLayer(*it, frame);
break;
}
}
}
void DocumentApi::addFrameForLayer(Layer* layer, FrameNumber frame)
{
ASSERT(layer);
ASSERT(frame >= 0);
Sprite* sprite = layer->getSprite();
switch (layer->getType()) {
case GFXOBJ_LAYER_IMAGE:
// Displace all cels in '>=frame' to the next frame.
for (FrameNumber c=sprite->getLastFrame(); c>=frame; --c) {
Cel* cel = static_cast<LayerImage*>(layer)->getCel(c);
if (cel)
setCelFramePosition(sprite, cel, cel->getFrame().next());
}
copyPreviousFrame(layer, frame);
break;
case GFXOBJ_LAYER_FOLDER: {
LayerIterator it = static_cast<LayerFolder*>(layer)->getLayerBegin();
LayerIterator end = static_cast<LayerFolder*>(layer)->getLayerEnd();
for (; it != end; ++it)
addFrameForLayer(*it, frame);
break;
}
}
}