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37 lines
863 B
C
37 lines
863 B
C
4 years ago
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#pragma once
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#include <QGraphicsView>
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#include <QGraphicsItem>
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#include <QGraphicsScene>
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#include <QMouseEvent>
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#include "lp_qt_utils.h"
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class LP_QT_UTILS_EXPORT lp_img_viewer : public QGraphicsView
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{
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Q_OBJECT
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public:
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lp_img_viewer(QGraphicsScene *scene, QWidget *parent = 0);
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lp_img_viewer(QWidget *parent = 0);
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virtual ~lp_img_viewer();
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QGraphicsPixmapItem* setImage(QImage& img);
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void fitInWindow();
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signals:
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void sigScaled(qreal scale);
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protected:
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virtual void wheelEvent(QWheelEvent *evt) override;
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virtual void closeEvent(QCloseEvent *evt) override;
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virtual void showEvent(QShowEvent *event) override;
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private:
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void init();
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void scaleImage(qreal scale);
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private:
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QGraphicsPixmapItem* img_item_ptr_{ nullptr };
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QSize origin_img_size_;
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QImage* img_ptr_{ nullptr };
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qreal scale_{ 1.0 };
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};
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