77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
#ifndef IMAGESCROLLAREAGL_H
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#define IMAGESCROLLAREAGL_H
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#include <memory>
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#include <QObject>
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#include <QOpenGLWidget>
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#include <QOpenGLFunctions>
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#include <QOpenGLShaderProgram>
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#include <QOpenGLBuffer>
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#include <QOpenGLTexture>
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#include <QOpenGLVertexArrayObject>
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#include <QScrollBar>
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#include "rawimage.h"
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typedef enum
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{
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Linear,
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Log,
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Sqrt,
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Power,
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Asinh,
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}StretchFunc;
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class ImageWidget : public QOpenGLWidget
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{
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Q_OBJECT
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QOpenGLFunctions *f;
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std::unique_ptr<QOpenGLShaderProgram> m_program;
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std::unique_ptr<QOpenGLBuffer> m_buffer;
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std::unique_ptr<QOpenGLTexture> m_image;
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std::unique_ptr<QOpenGLVertexArrayObject> m_vao;
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std::unique_ptr<QOpenGLPixelTransferOptions> m_transferOptions;
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int m_width, m_height;
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float m_low;
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float m_high;
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float m_range;
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float m_dx, m_dy;
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public:
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explicit ImageWidget(QWidget *parent = nullptr);
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~ImageWidget();
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void setImage(RawImage *image);
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void setImage(const QPixmap &pixmap);
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public slots:
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void setLow(int low);
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void setHigh(int high);
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void setOffset(int dx, int dy);
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protected:
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void paintGL();
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void resizeGL(int w, int h);
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void initializeGL();
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};
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class ImageScrollAreaGL : public QWidget
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{
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Q_OBJECT
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QScrollBar *m_verticalScrollBar;
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QScrollBar *m_horizontalScrollBar;
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ImageWidget *m_imageWidget;
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int m_imgWidth, m_imgHeight;
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QPoint m_lastPos;
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public:
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explicit ImageScrollAreaGL(QWidget *parent = nullptr);
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~ImageScrollAreaGL();
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void setImage(RawImage *image);
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void setImage(const QPixmap &pixmap);
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ImageWidget* imageWidget();
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protected:
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void updateScrollbars();
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void resizeEvent(QResizeEvent *event);
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void mouseMoveEvent(QMouseEvent *event);
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void mousePressEvent(QMouseEvent *event);
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protected slots:
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void scrollEvent();
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};
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#endif // IMAGESCROLLAREAGL_H
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