void ExpandCelCanvas::validateSourceCanvas(const gfx::Region& rgn)
{
getSourceCanvas();
gfx::Region rgnToValidate(rgn);
rgnToValidate.offset(-m_bounds.getOrigin());
rgnToValidate.createSubtraction(rgnToValidate, m_validSrcRegion);
rgnToValidate.createIntersection(rgnToValidate, gfx::Region(m_srcImage->bounds()));
if (m_celImage) {
gfx::Region rgnToClear;
rgnToClear.createSubtraction(rgnToValidate,
gfx::Region(m_celImage->bounds()
.offset(m_origCelPos)
.offset(-m_bounds.getOrigin())));
for (const auto& rc : rgnToClear)
fill_rect(m_srcImage, rc, m_srcImage->maskColor());
for (const auto& rc : rgnToValidate)
m_srcImage->copy(m_celImage, rc.x, rc.y,
rc.x+m_bounds.x-m_origCelPos.x,
rc.y+m_bounds.y-m_origCelPos.y, rc.w, rc.h);
}
else {
for (const auto& rc : rgnToValidate)
fill_rect(m_srcImage, rc, m_srcImage->maskColor());
}
m_validSrcRegion.createUnion(m_validSrcRegion, rgnToValidate);
}
void ExpandCelCanvas::commit()
{
ASSERT(!m_closed);
ASSERT(!m_committed);
if (!m_layer) {
m_committed = true;
return;
}
// Was the cel created in the start of the tool-loop?
if (m_celCreated) {
ASSERT(m_cel);
ASSERT(!m_celImage);
// Validate the whole m_dstImage (invalid areas are cleared, as we
// don't have a m_celImage)
validateDestCanvas(gfx::Region(m_bounds));
// We can temporary remove the cel.
if (m_layer->isImage()) {
static_cast<LayerImage*>(m_layer)->removeCel(m_cel);
// Add a copy of m_dstImage in the sprite's image stock
gfx::Rect trimBounds = getTrimDstImageBounds();
if (!trimBounds.isEmpty()) {
ImageRef newImage(trimDstImage(trimBounds));
ASSERT(newImage);
m_cel->data()->setImage(newImage);
m_cel->setPosition(m_cel->position() + trimBounds.origin());
// And finally we add the cel again in the layer.
m_transaction.execute(new cmd::AddCel(m_layer, m_cel));
}
}
// We are selecting inside a layer group...
else {
// Just delete the created layer
delete m_cel;
m_cel = nullptr;
}
}
else if (m_celImage) {
// Restore cel position to its original position
m_cel->setPosition(m_origCelPos);
ASSERT(m_cel->image() == m_celImage.get());
gfx::Region* regionToPatch = &m_validDstRegion;
gfx::Region reduced;
if (m_canCompareSrcVsDst) {
ASSERT(gfx::Region().createSubtraction(m_validDstRegion, m_validSrcRegion).isEmpty());
for (gfx::Rect rc : m_validDstRegion) {
if (algorithm::shrink_bounds2(getSourceCanvas(),
getDestCanvas(), rc, rc)) {
reduced |= gfx::Region(rc);
}
}
regionToPatch = &reduced;
}
if (m_layer->isBackground()) {
m_transaction.execute(
new cmd::CopyRegion(
m_cel->image(),
m_dstImage.get(),
*regionToPatch,
m_bounds.origin()));
}
else {
m_transaction.execute(
new cmd::PatchCel(
m_cel,
m_dstImage.get(),
*regionToPatch,
m_bounds.origin()));
}
}
else {
ASSERT(false);
}
m_committed = true;
}
