line_painter.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <QtCore>
#include <QtOpenGL>
 
#include "ui/point_painter.h"
 
namespace colmap {
 
class LinePainter {
public:
    LinePainter();
    ~LinePainter();
 
    struct Data {
        Data() {}
        Data(const PointPainter::Data& p1, const PointPainter::Data& p2)
            : point1(p1), point2(p2) {}
 
        PointPainter::Data point1;
        PointPainter::Data point2;
    };
 
    void Setup();
    void Upload(const std::vector<LinePainter::Data>& data);
    void Render(const QMatrix4x4& pmv_matrix,
                const int width,
                const int height,
                const float line_width);
 
private:
    QOpenGLShaderProgram shader_program_;
    QOpenGLVertexArrayObject vao_;
    QOpenGLBuffer vbo_;
 
    size_t num_geoms_;
};
 
}  // namespace colmap