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122 lines
3.1 KiB
122 lines
3.1 KiB
#ifndef GRAPHLOGIC_H
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#define GRAPHLOGIC_H
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#include <QObject>
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#include <QUndoStack>
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#include "node.h"
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#include "graphwidget.h"
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#include "commands.h"
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class GraphWidget;
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class InsertNodeCommand;
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class RemoveNodeCommand;
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class AddEdgeCommand;
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class RemoveEdgeCommand;
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class GraphLogic : public QObject
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{
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Q_OBJECT
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public:
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explicit GraphLogic(GraphWidget *parent = 0);
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GraphWidget *graphWidget() const;
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void setUndoStack(QUndoStack *stack);
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bool processKeyEvent(QKeyEvent *event);
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void addFirstNode();
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void removeAllNodes();
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bool readContentFromXmlFile(const QString &fileName);
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void writeContentToXmlFile(const QString &fileName);
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void writeContentToPngFile(const QString &fileName);
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Node *nodeFactory();
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void setActiveNode(Node *node);
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void setHintNode(Node *node);
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void reShowNumbers();
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void moveNode(qreal x, qreal y);
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// void move(const QPointF &oldpos, const QPointF &newpos); /// @todo Rewrite as an undo action
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public slots:
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// commands from toolbars:
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void insertNode(); // undo command
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void removeNode(); // undo command
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void nodeEdited(); /// @todo Rewrite as an undo action
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void scaleUp(); /// @todo Rewrite as an undo action
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void scaleDown(); /// @todo Rewrite as an undo action
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void nodeColor();
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void nodeTextColor();
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void addEdge();
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void removeEdge();
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void hintMode();
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void insertPicture(const QString &picture); /// @todo Rewrite as an undo action
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void nodeChanged();
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void nodeSelected();
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void nodeMoved(QGraphicsSceneMouseEvent *event);
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void nodeLostFocus();
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signals:
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void contentChanged(const bool& changed = true);
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void notification(const QString &msg);
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private:
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void moveNodeUp();
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void moveNodeDown();
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void moveNodeLeft();
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void moveNodeRight();
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void setNodeColor(const QColor &color, const bool &subtree = false); /// @todo Rewrite as an undo action
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void setNodeTextColor(const QColor &color, const bool &subtree = false); /// @todo Rewrite as an undo action
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// hint mode
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void appendNumber(const int &unm);
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void delNumber();
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void applyNumber();
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void selectNode(Node *node);
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// functions on the edges
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QList<Edge *> allEdges() const;
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void addEdge(Node *source, Node *destination); // undo command
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void removeEdge(Node* source, Node *destination); // undo command
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// hint mode's nodenumber handling functions
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void showNodeNumbers();
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void showingAllNodeNumbers(const bool &show = true);
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void showingNodeNumbersBeginWithNumber(const int &prefix,
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const bool &show = true);
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GraphWidget *m_graphWidget;
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QList<Node *> m_nodeList;
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Node *m_activeNode;
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bool m_showingNodeNumbers;
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QString m_hintNumber;
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Node *m_hintNode;
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bool m_editingNode;
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bool m_edgeAdding;
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bool m_edgeDeleting;
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std::map<int, void(GraphLogic::*)(void)> m_memberMap;
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QUndoStack *m_undoStack;
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// friend class InsertNodeCommand;
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// friend class RemoveNodeCommand;
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// friend class AddEdgeCommand;
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// friend class RemoveEdgeCommand;
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};
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#endif // GRAPHLOGIC_H
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