ccCloudLayersHelper.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
// ##########################################################################
// #                                                                        #
// #                   CloudViewer PLUGIN: qCloudLayers                    #
// #                                                                        #
// #  This program is free software; you can redistribute it and/or modify  #
// #  it under the terms of the GNU General Public License as published by  #
// #  the Free Software Foundation; version 2 of the License.               #
// #                                                                        #
// #  This program is distributed in the hope that it will be useful,       #
// #  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
// #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
// #  GNU General Public License for more details.                          #
// #                                                                        #
// #                     COPYRIGHT: WigginsTech 2022                        #
// #                                                                        #
// ##########################################################################
 
#include "ccAsprsModel.h"
 
// CC
#include <CVGeom.h>
#include <CVTypes.h>
#include <ecvColorTypes.h>
#include <ecvGenericDisplayTools.h>
 
// QT
#include <QColor>
#include <QStringList>
 
// std
#include <vector>
 
class ccPointCloud;
class ecvMainAppInterface;
class ColorsTableType;
 
class ccCloudLayersHelper {
public:
    ccCloudLayersHelper(ecvMainAppInterface* app, ccPointCloud* cloud);
    ~ccCloudLayersHelper();
 
    QStringList getScalarFields();
    void setScalarFieldIndex(int index);
 
    // set colors alpha to MAX
    void setVisible(bool value);
 
    // apply visibility and colors
    void apply(QList<ccAsprsModel::AsprsItem>& items);
 
    // apply visibility and color return affected count
    int apply(ccAsprsModel::AsprsItem& item, bool redrawDisplay = false);
 
    // asprs item code changed
    void changeCode(const ccAsprsModel::AsprsItem& item, ScalarType oldCode);
 
    // set scalar code to zero return affected count
    int moveItem(const ccAsprsModel::AsprsItem& from,
                 const ccAsprsModel::AsprsItem* to,
                 bool redrawDisplay = false);
 
    // save color and codes
    void saveState();
 
    // restore initial colors and codes
    void restoreState();
 
    void mouseMove(const CCVector2& center,
                   float squareDist,
                   std::map<ScalarType, int>& affected);
    void projectCloud(const ccGLCameraParameters& camera);
    bool hasChanges() const { return m_modified; }
 
    struct Parameters {
        bool anyPoints = false;
        bool visiblePoints = false;
        ccAsprsModel::AsprsItem* input = nullptr;
        ccAsprsModel::AsprsItem* output = nullptr;
    };
 
    Parameters& getParameters();
 
    inline ccPointCloud* cloud() { return m_cloud; }
 
    void keepCurrentSFVisible();
 
private:  // methods
    void project(ccGLCameraParameters camera, unsigned start, unsigned end);
    static PointCoordinateType ComputeSquaredEuclideanDistance(
            const CCVector2& a, const CCVector2& b);
 
private:  // variables
    ecvMainAppInterface* m_app;
    ccPointCloud* m_cloud;
    ColorsTableType* m_formerCloudColors;
    bool m_formerCloudColorsWereShown;
    bool m_formerCloudSFWasShown;
    Parameters m_parameters;
 
    unsigned m_scalarFieldIndex;
    bool m_modified;
 
    ccGLCameraParameters m_cameraParameters;
    std::vector<CCVector2> m_projectedPoints;
    std::vector<bool> m_pointInFrustum;
 
    struct CloudState {
    public:
        CloudState() {}
 
        void update(ScalarType code, ecvColor::Rgb color) {
            this->code = code;
            this->color = color;
        }
 
        ScalarType code;
        ecvColor::Rgb color;
    };
 
    std::vector<CloudState> m_cloudState;
};