lc::operation::RemoveLayer Class Reference

#include <layerops.h>

Inheritance diagram for lc::operation::RemoveLayer:

Collaboration diagram for lc::operation::RemoveLayer:

Public Member Functions
	RemoveLayer (std::shared_ptr< Document > document, const Layer_CSPtr layer)
virtual void	undo () const
	Undo a given operation. More...
virtual void	redo () const
	Redo a given operation. More...
Public Member Functions inherited from lc::operation::DocumentOperation
	DocumentOperation (Document_SPtr document, const std::string &description)
Document_SPtr	document () const
virtual void	execute ()
	execute this operation More...
virtual	~DocumentOperation ()
Public Member Functions inherited from lc::operation::Undoable
	Undoable (const std::string &text)
	Name of this operartion. More...
virtual	~Undoable ()
virtual std::string	text ()
	Name of the operation. More...

Protected Member Functions
virtual void	processInternal ()

Private Attributes
Layer_CSPtr	_layer
std::vector < entity::CADEntity_CSPtr >	_entities

Detailed Description

Remove layer from document

Definition at line 32 of file layerops.h.

Constructor & Destructor Documentation

RemoveLayer::RemoveLayer	(	std::shared_ptr< Document >	document,
		const Layer_CSPtr	layer
	)

RemoveLayer

Definition at line 30 of file layerops.cpp.

                                                                                  :
        DocumentOperation(document, "RemoveLayer"),
        _layer(layer) {

    if(layer->name() == "0") {
        throw "Layer 0 cannot be removed";
    }

}

Member Function Documentation

void RemoveLayer::processInternal ( )

protectedvirtual

This function gets called when an operation starts and when the document is locked for you so you can do your work

Implements lc::operation::DocumentOperation.

Definition at line 40 of file layerops.cpp.

                                  {
    auto le = document()->entityContainer().entitiesByLayer(_layer).asVector();
    _entities.insert(_entities.end(), le.begin(), le.end());

    for (auto i : _entities) {
        document()->removeEntity(i);
    }

    document()->removeDocumentMetaType(_layer);
}

void RemoveLayer::redo ( ) const

virtual

Redo a given operation.

This can get called if we want to redo a operation. Redo is usually called after an undo operation. If in the undo operation entities where removed, it needs to get added again. it doesn't have to do any re.calculation but just remember what entities have been added or removed.

Implements lc::operation::Undoable.

Definition at line 59 of file layerops.cpp.

                             {
    for (auto i : _entities) {
        document()->removeEntity(i);
    }

    document()->removeDocumentMetaType(_layer);
}

void RemoveLayer::undo ( ) const

virtual

Undo a given operation.

For any operation that means for example when it added entities to the document it now needs to remove all created entities on the document. When the operation added a layer or block, it will call functions to remove that block

Implements lc::operation::Undoable.

Definition at line 51 of file layerops.cpp.

                             {
    document()->addDocumentMetaType(_layer);

    for (auto i : _entities) {
        document()->insertEntity(i);
    }
}

Member Data Documentation

std::vector<entity::CADEntity_CSPtr> lc::operation::RemoveLayer::_entities

private

Definition at line 46 of file layerops.h.

Layer_CSPtr lc::operation::RemoveLayer::_layer

private

Definition at line 45 of file layerops.h.

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The documentation for this class was generated from the following files:

• lckernel/cad/operations/layerops.h
• lckernel/cad/operations/layerops.cpp