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50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
4 years ago
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#ifndef __lpImgViewer_h_
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#define __lpImgViewer_h_
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#include <QGraphicsView>
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#include <QGraphicsItem>
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#include <QGraphicsScene>
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#include <QLabel>
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class lpImgViewer : public QGraphicsView
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{
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Q_OBJECT
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public:
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lpImgViewer(QGraphicsScene *scene, QWidget *parent = 0);
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lpImgViewer(QWidget* parent = 0);
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~lpImgViewer(){
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if (mpImg)
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delete mpImg;
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}
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QGraphicsPixmapItem* setImg(QImage& img);
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void setInfoLabel(QLabel* ipLabel){ mpInfoLabel = ipLabel; }
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virtual void wheelEvent(QWheelEvent *evt);
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virtual void mouseMoveEvent(QMouseEvent *evt);
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virtual void resizeEvent(QResizeEvent* evt);
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virtual void mouseReleaseEvent(QMouseEvent *evt);
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virtual void closeEvent(QCloseEvent *evt);
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virtual void clear();
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signals:
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void imgScaled(QTransform tf, QPointF center);
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void imgMoved(QPointF pos);
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void pixelSelected(QPoint pos);
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public slots:
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void scaleImg(QTransform tf, QPointF center);
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void moveImg(QPointF pos);
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void selectPixel(QPoint pos);
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private:
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QGraphicsPixmapItem* mpImgItem;
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QSize mImgOriSize;
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QLabel* mpInfoLabel;
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QImage* mpImg;
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QGraphicsScene* lpScene{ nullptr };
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void scaleImg2(qreal scale);
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};
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#endif
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