114 lines
3.0 KiB
C++
114 lines
3.0 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_3_3_Core>
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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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#include "imageringlist.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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QOpenGLFunctions_3_3_Core *f3;
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std::unique_ptr<QOpenGLShaderProgram> m_program;
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std::unique_ptr<QOpenGLShaderProgram> m_thumbnailProgram;
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std::unique_ptr<QOpenGLBuffer> m_buffer;
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std::unique_ptr<QOpenGLBuffer> m_bufferSizes;
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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<QOpenGLVertexArrayObject> m_vaoThumb;
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std::unique_ptr<QOpenGLPixelTransferOptions> m_transferOptions;
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std::unique_ptr<QOpenGLTexture> m_thumbnailTexture;
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int m_width, m_height;
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int m_imgWidth, m_imgHeight;
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float m_low;
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float m_mid;
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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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float m_scale;
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bool m_blockRepaint;
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bool m_bwImg;
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bool m_invert;
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bool m_superpixel;
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bool m_showThumbnails;
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int m_thumbnailCount;
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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(const RawImage *image);
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void setImage(const QPixmap &pixmap);
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void setScale(float scale);
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void blockRepaint(bool block);
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void allocateThumbnails(int count);
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public slots:
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void setMTFParams(float low, float mid, float high);
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void setOffset(int dx, int dy);
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void superPixel(bool enable);
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void invert(bool enable);
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QImage renderToImage();
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void thumbnailLoaded(const Image *image);
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void showThumbnail(bool enable);
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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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void dragEnterEvent(QDragEnterEvent *event);
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void dropEvent(QDropEvent *event);
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signals:
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void fileDropped(const QString &path);
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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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float m_scale;
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bool m_bestFit;
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int m_thumbCount;
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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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void setThumbnails(int count);
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protected:
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void updateScrollbars(bool zoom = false);
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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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void wheelEvent(QWheelEvent *event);
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void zoom(float delta);
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public slots:
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void zoomIn();
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void zoomOut();
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void bestFit();
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void oneToOne();
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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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