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/*!
* \file undocommands.h
*
* All changes to a TikzDocument are done via subclasses of QUndoCommand. When a controller
* (e.g. TikzScene) gets input from the user to change the document, it will push one of
* these commands onto the TikzDocument's undo stack, which automatically calls the redo()
* method of the command.
*/
#ifndef UNDOCOMMANDS_H
#define UNDOCOMMANDS_H
#include "tikzscene.h"
#include <QUndoCommand>
class GraphUpdateCommand : public QUndoCommand {
public:
explicit GraphUpdateCommand(TikzScene *scene,
QUndoCommand *parent = 0);
void undo() override;
void redo() override;
protected:
TikzScene *_scene;
};
class MoveCommand : public GraphUpdateCommand
{
public:
explicit MoveCommand(TikzScene *scene,
QMap<Node*,QPointF> oldNodePositions,
QMap<Node*,QPointF> newNodePositions,
QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
QMap<Node*,QPointF> _oldNodePositions;
QMap<Node*,QPointF> _newNodePositions;
};
class EdgeBendCommand : public GraphUpdateCommand
{
public:
explicit EdgeBendCommand(TikzScene *scene, Edge *edge,
float oldWeight, int oldBend,
int oldInAngle, int oldOutAngle,
QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
Edge *_edge;
float _oldWeight;
int _oldBend;
int _oldInAngle;
int _oldOutAngle;
float _newWeight;
int _newBend;
int _newInAngle;
int _newOutAngle;
};
class DeleteCommand : public GraphUpdateCommand
{
public:
explicit DeleteCommand(TikzScene *scene,
QMap<int,Node*> deleteNodes,
QMap<int,Edge*> deleteEdges,
QSet<Edge*> selEdges,
QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
QMap<int,Node*> _deleteNodes;
QMap<int,Edge*> _deleteEdges;
QSet<Edge*> _selEdges;
};
class AddNodeCommand : public GraphUpdateCommand
{
public:
explicit AddNodeCommand(TikzScene *scene, Node *node, QRectF newBounds,
QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
Node *_node;
QRectF _oldBounds;
QRectF _newBounds;
};
class AddEdgeCommand : public GraphUpdateCommand
{
public:
explicit AddEdgeCommand(TikzScene *scene, Edge *edge, QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
Edge *_edge;
};
class ChangeEdgeModeCommand : public GraphUpdateCommand
{
public:
explicit ChangeEdgeModeCommand(TikzScene *scene, Edge *edge, QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
Edge *_edge;
};
class ApplyStyleToNodesCommand : public GraphUpdateCommand
{
public:
explicit ApplyStyleToNodesCommand(TikzScene *scene, QString style, QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
QString _style;
QMap<Node*,QString> _oldStyles;
};
class PasteCommand : public GraphUpdateCommand
{
public:
explicit PasteCommand(TikzScene *scene, Graph *graph, QUndoCommand *parent = 0);
void undo() override;
void redo() override;
private:
Graph *_graph;
QList<QGraphicsItem*> _oldSelection;
};
#endif // UNDOCOMMANDS_H
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