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86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
#ifndef _H_LPIMGVIEWER_H_
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#define _H_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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typedef QImage (*ImageScaleFun)(QImage, double, int);
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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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static QString pixelInfoStr(QPoint pos, QRgb rgb);
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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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virtual ~lpImgViewer(){
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if (mpImg)
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delete mpImg;
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}
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virtual QGraphicsPixmapItem* setImg(QImage& img);
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void setInfoLabel(QLabel* ipLabel){ mpInfoLabel = ipLabel; }
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void setResetCenter();
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const QImage* img() { return mpImg; }
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QGraphicsPixmapItem* imgItem() { return mpImgItem; }
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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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virtual const qreal getScale(void) const { return m_scale; };
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virtual void setChannel(const QString& channel) { m_channel = channel; }
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virtual QString getChannel() const { return m_channel; }
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bool isFixedSizeScale() const { return mIsFixedSizeScale; }
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void setIsFixedSizeScale(bool val) { mIsFixedSizeScale = val; }
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qreal fixedSizeScale() const { return mFixedSizeScale; }
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void setFixedSizeScale(qreal val) { mFixedSizeScale = val; }
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ImageScaleFun imgScaleFunc() const { return mImgScaleFunc; }
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void setImgScaleFunc(ImageScaleFun val) { mImgScaleFunc = val; }
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void setInitScale(qreal val);
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bool isAutoResetTransform() const { return mIsAutoResetTransform; }
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void setIsAutoResetTransform(bool val) { mIsAutoResetTransform = val; }
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bool isAutoResetToWindowSize() const { return mIsAutoResetToWindowSize; }
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void setIsAutoResetToWindowSize(bool val) { mIsAutoResetToWindowSize = val; }
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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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void imgScaledWithFixedSize(qreal scale);
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void sgImageScale(qreal);
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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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void scaleImageWithFixedViewSize();
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protected:
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QGraphicsPixmapItem* mpImgItem{ nullptr };
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QSize mImgOriSize;
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qreal mMinScaleThre;
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QLabel* mpInfoLabel{ nullptr };
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QImage* mpImg{ nullptr };
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void scaleImg2(qreal scale);
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qreal m_scale;
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QString m_channel;
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bool mIsFixedSizeScale;
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qreal mFixedSizeScale;
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bool mIsAutoResetTransform;
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bool mIsAutoResetToWindowSize;
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ImageScaleFun mImgScaleFunc;
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};
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#endif
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