97 lines
1.8 KiB
C++
97 lines
1.8 KiB
C++
#ifndef GRAPHICSSCENE_H
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#define GRAPHICSSCENE_H
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#include <QGraphicsScene>
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#include <QGraphicsPixmapItem>
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#include <QTextEdit>
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#include <vector>
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class GraphicsTextEdit : public QTextEdit
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{
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Q_OBJECT
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public:
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GraphicsTextEdit(QWidget* parent = nullptr);
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~GraphicsTextEdit();
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void setDefeaultColor(const QColor& color);
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private slots:
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void on_textChanged();
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private:
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QColor m_defeaultColor;
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};
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class GraphicsScene : public QGraphicsScene
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{
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Q_OBJECT
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public:
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enum STATUS
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{
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Normal = 0,
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CreateMask,
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CreateRect,
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CreateEllipse,
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CreateLine,
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CreateText,
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CreateArrow,
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CreatePen,
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Erase
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};
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enum
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{
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None,
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Mask,
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Rect,
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Ellipse,
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Line,
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Text,
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Arrow,
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Pen
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};
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public:
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GraphicsScene(QObject* parent = nullptr);
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~GraphicsScene();
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void setColor(const QColor& color);
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void setTextSize(int size);
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void setLineWidth(int width);
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void setItemFlag(int flag);
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bool isCanUndo();
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void undo();
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bool isCanRedo();
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void redo();
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void clear();
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signals:
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void itemChanged();
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private:
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void flush();
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void updateShow();
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QPainterPath createArrowPath(const QPointF& p1, const QPointF& p2);
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protected:
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virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
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virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
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virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
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private:
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STATUS m_status;
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QGraphicsItem* m_activeItem;
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QPointF m_startPoint;
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QPen m_pen;
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QBrush m_brush;
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QFont m_font;
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GraphicsTextEdit* m_edit;
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std::vector<QGraphicsItem*> m_ItemList;
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int m_curItemIndex;
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};
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#endif // GRAPHICSSCENE_H
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