drawable_object_vector_tree.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
 *                                                                           *
 * Copyright(C) 2021-2025                                                    *
 * Visual Computing Lab                                                      *
 * ISTI - Italian National Research Council                                  *
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 * This program is free software; you can redistribute it and/or modify      *
 * it under the terms of the Mozilla Public License Version 2.0 as published *
 * by the Mozilla Foundation; either version 2 of the License, or            *
 * (at your option) any later version.                                       *
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 * 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              *
 * Mozilla Public License Version 2.0                                        *
 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details.                *
 ****************************************************************************/
 
#ifndef VCL_QT_GUI_DRAWABLE_OBJECT_VECTOR_TREE_H
#define VCL_QT_GUI_DRAWABLE_OBJECT_VECTOR_TREE_H
 
#include <vclib/render/drawable/drawable_object_vector.h>
 
#include <QFrame>
#include <QTreeWidgetItem>
 
namespace vcl::qt {
 
namespace Ui {
class DrawableObjectVectorTree;
} // namespace Ui
 
class DrawableObjectVectorTree : public QFrame
{
public:
    using IconFunction =
        std::function<std::pair<QIcon, std::string>(const DrawableObject&)>;
 
private:
    Q_OBJECT
 
    Ui::DrawableObjectVectorTree* mUI;
 
    // this frame does not normally own this drawList
    std::shared_ptr<DrawableObjectVector> mDrawList;
 
    // icon function
    IconFunction mIconFunction = nullptr;
 
public:
    explicit DrawableObjectVectorTree(QWidget* parent = nullptr);
    explicit DrawableObjectVectorTree(
        const std::shared_ptr<DrawableObjectVector>& v,
        QWidget*                                     parent = nullptr);
    ~DrawableObjectVectorTree();
 
    void setIconFunction(const IconFunction& f);
 
    void setDrawableObjectVector(
        const std::shared_ptr<vcl::DrawableObjectVector>& v);
 
    uint selectedDrawableObject() const;
 
    void update(); // todo: rename this to refresh
 
    // function to set the selected item
    bool setSelectedItem(uint i);
 
signals:
    void drawableObjectSelectionChanged(uint i);
    void drawableObjectVisibilityChanged();
 
private:
    void updateDrawableVectorTree();
 
private slots:
    void itemSelectionChanged();
    void itemCheckStateChanged(QTreeWidgetItem* item, int column);
};
 
} // namespace vcl::qt
 
#endif // VCL_QT_GUI_DRAWABLE_OBJECT_VECTOR_TREE_H