// Copyright (c), ETH Zurich and UNC Chapel Hill.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//
//     * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
//       its contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#pragma once

#include "colmap/feature/types.h"
#include "colmap/sensor/bitmap.h"
#include "colmap/util/eigen_alignment.h"
#include "colmap/util/types.h"

#include <QtCore>
#include <QtGui>
#include <QtOpenGL>

#include <Eigen/Core>

namespace colmap {

// Loads a monochrome SVG icon from a Qt resource path and tints it to match
// the current application palette, so that icons remain legible under both
// light and dark themes. The icons under :/media are flat silhouettes without
// an explicit fill color (which defaults to black per the SVG spec), so a
// solid tint to the palette foreground color is exact. The tint is baked in
// when the icon is created, so a theme change at runtime is only reflected
// once icons are recreated.
QIcon ThemedIcon(const QString& resource_path);

Eigen::Matrix4f QMatrixToEigen(const QMatrix4x4& matrix);

QMatrix4x4 EigenToQMatrix(const Eigen::Matrix4f& matrix);

QImage BitmapToQImageRGB(const Bitmap& bitmap);

void DrawKeypoints(QPixmap* image,
                   const FeatureKeypoints& points,
                   const QColor& color = Qt::red);

QPixmap ShowImagesSideBySide(const QPixmap& image1, const QPixmap& image2);

QPixmap DrawMatches(const QPixmap& image1,
                    const QPixmap& image2,
                    const FeatureKeypoints& points1,
                    const FeatureKeypoints& points2,
                    const FeatureMatches& matches,
                    const QColor& keypoints_color = Qt::red);

}  // namespace colmap
