void PixelsMovement::onPivotChange()
{
set_pivot_from_preferences(m_currentData);
onRotationAlgorithmChange();
}
gfx::Transformation StandbyState::getTransformation(Editor* editor)
{
gfx::Transformation t = editor->document()->getTransformation();
set_pivot_from_preferences(t);
return t;
}
PixelsMovement::PixelsMovement(
Context* context,
Site site,
const Image* moveThis,
const Mask* mask,
const char* operationName)
: m_reader(context)
, m_site(site)
, m_document(static_cast<app::Document*>(site.document()))
, m_sprite(site.sprite())
, m_layer(site.layer())
, m_transaction(context, operationName)
, m_setMaskCmd(nullptr)
, m_isDragging(false)
, m_adjustPivot(false)
, m_handle(NoHandle)
, m_originalImage(Image::createCopy(moveThis))
, m_opaque(false)
, m_maskColor(m_sprite->transparentColor())
{
gfx::Transformation transform(mask->bounds());
set_pivot_from_preferences(transform);
m_initialData = transform;
m_currentData = transform;
m_initialMask = new Mask(*mask);
m_currentMask = new Mask(*mask);
m_pivotVisConn =
Preferences::instance().selection.pivotVisibility.AfterChange.connect(
base::Bind<void>(&PixelsMovement::onPivotChange, this));
m_pivotPosConn =
Preferences::instance().selection.pivotPosition.AfterChange.connect(
base::Bind<void>(&PixelsMovement::onPivotChange, this));
m_rotAlgoConn =
Preferences::instance().selection.rotationAlgorithm.AfterChange.connect(
base::Bind<void>(&PixelsMovement::onRotationAlgorithmChange, this));
// The extra cel must be null, because if it's not null, it means
// that someone else is using it (e.g. the editor brush preview),
// and its owner could destroy our new "extra cel".
ASSERT(!m_document->extraCel());
redrawExtraImage();
redrawCurrentMask();
// If the mask isn't in the document (e.g. it's from Paste command),
// we've to replace the document mask and generate its boundaries.
//
// This is really tricky. PixelsMovement is used in two situations:
// 1) When the current selection is transformed, and
// 2) when the user pastes the clipboard content.
//
// In the first case, the current document selection is used. And a
// cutMask() command could be called after PixelsMovement ctor. We
// need the following stack of Cmd instances in the Transaction:
// - cmd::ClearMask: clears the old mask)
// - cmd::SetMask (m_setMaskCmd): replaces the old mask with a new mask
// The new mask in m_setMaskCmd is replaced each time the mask is modified.
//
// In the second case, the mask isn't in the document, is a new mask
// used to paste the pixels, so we've to replace the document mask.
// The Transaction contains just a:
// - cmd::SetMask
//
// The main point here is that cmd::SetMask must be the last item in
// the Transaction using the mask (because we use cmd::SetMask::setNewMask()).
//
// TODO Simplify this code in some way or make explicit both usages
if (mask != m_document->mask()) {
updateDocumentMask();
update_screen_for_document(m_document);
}
}
