void UndoTransaction::removeFrameOfLayer(Layer* layer, int frame)
{
ASSERT(layer);
ASSERT(frame >= 0);
switch (layer->getType()) {
case GFXOBJ_LAYER_IMAGE:
if (Cel* cel = static_cast<LayerImage*>(layer)->getCel(frame))
removeCel(static_cast<LayerImage*>(layer), cel);
for (++frame; frame<m_sprite->getTotalFrames(); ++frame)
if (Cel* cel = static_cast<LayerImage*>(layer)->getCel(frame))
setCelFramePosition(cel, cel->getFrame()-1);
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)
removeFrameOfLayer(*it, frame);
break;
}
}
}
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;
}
}
}
// Does the hard part of removing a frame: Removes all cels located in
// the given frame, and moves all following cels one frame position back.
void DocumentApi::removeFrameOfLayer(Layer* layer, FrameNumber frame)
{
ASSERT(layer);
ASSERT(frame >= 0);
Sprite* sprite = layer->getSprite();
switch (layer->getType()) {
case GFXOBJ_LAYER_IMAGE:
if (Cel* cel = static_cast<LayerImage*>(layer)->getCel(frame))
removeCel(static_cast<LayerImage*>(layer), cel);
for (++frame; frame<sprite->getTotalFrames(); ++frame)
if (Cel* cel = static_cast<LayerImage*>(layer)->getCel(frame))
setCelFramePosition(sprite, cel, cel->getFrame().previous());
break;
case GFXOBJ_LAYER_FOLDER: {
LayerIterator it = static_cast<LayerFolder*>(layer)->getLayerBegin();
LayerIterator end = static_cast<LayerFolder*>(layer)->getLayerEnd();
for (; it != end; ++it)
removeFrameOfLayer(*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;
}
}
}
void UndoTransaction::moveFrameBeforeLayer(Layer* layer, int frame, int before_frame)
{
ASSERT(layer);
switch (layer->getType()) {
case GFXOBJ_LAYER_IMAGE: {
CelIterator it = ((LayerImage*)layer)->getCelBegin();
CelIterator end = ((LayerImage*)layer)->getCelEnd();
for (; it != end; ++it) {
Cel* cel = *it;
int new_frame = cel->getFrame();
// moving the frame to the future
if (frame < before_frame) {
if (cel->getFrame() == frame) {
new_frame = before_frame-1;
}
else if (cel->getFrame() > frame &&
cel->getFrame() < before_frame) {
new_frame--;
}
}
// moving the frame to the past
else if (before_frame < frame) {
if (cel->getFrame() == frame) {
new_frame = before_frame;
}
else if (cel->getFrame() >= before_frame &&
cel->getFrame() < frame) {
new_frame++;
}
}
if (cel->getFrame() != new_frame)
setCelFramePosition(cel, new_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)
moveFrameBeforeLayer(*it, frame, before_frame);
break;
}
}
}
void DocumentApi::moveFrameBeforeLayer(Layer* layer, FrameNumber frame, FrameNumber beforeFrame)
{
ASSERT(layer);
switch (layer->getType()) {
case GFXOBJ_LAYER_IMAGE: {
CelIterator it = ((LayerImage*)layer)->getCelBegin();
CelIterator end = ((LayerImage*)layer)->getCelEnd();
for (; it != end; ++it) {
Cel* cel = *it;
FrameNumber newFrame = cel->getFrame();
// moving the frame to the future
if (frame < beforeFrame) {
if (cel->getFrame() == frame) {
newFrame = beforeFrame.previous();
}
else if (cel->getFrame() > frame &&
cel->getFrame() < beforeFrame) {
--newFrame;
}
}
// moving the frame to the past
else if (beforeFrame < frame) {
if (cel->getFrame() == frame) {
newFrame = beforeFrame;
}
else if (cel->getFrame() >= beforeFrame &&
cel->getFrame() < frame) {
++newFrame;
}
}
if (cel->getFrame() != newFrame)
setCelFramePosition(layer->getSprite(), cel, newFrame);
}
break;
}
case GFXOBJ_LAYER_FOLDER: {
LayerIterator it = static_cast<LayerFolder*>(layer)->getLayerBegin();
LayerIterator end = static_cast<LayerFolder*>(layer)->getLayerEnd();
for (; it != end; ++it)
moveFrameBeforeLayer(*it, frame, beforeFrame);
break;
}
}
}
