////////////////////////////////////////////////////////////////////////////////////////
//
//  Copyright 2026 OVITO GmbH, Germany
//
//  This file is part of OVITO (Open Visualization Tool).
//
//  OVITO is free software; you can redistribute it and/or modify it either under the
//  terms of the GNU General Public License version 3 as published by the Free Software
//  Foundation (the "GPL") or, at your option, under the terms of the MIT License.
//  If you do not alter this notice, a recipient may use your version of this
//  file under either the GPL or the MIT License.
//
//  You should have received a copy of the GPL along with this program in a
//  file LICENSE.GPL.txt.  You should have received a copy of the MIT License along
//  with this program in a file LICENSE.MIT.txt
//
//  This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
//  either express or implied. See the GPL or the MIT License for the specific language
//  governing rights and limitations.
//
////////////////////////////////////////////////////////////////////////////////////////

#pragma once


#include <ovito/gui/desktop/GUI.h>
#include <ovito/core/viewport/Viewport.h>
#include <ovito/core/oo/RefTargetListener.h>

namespace Ovito {

/**
 * This dialog box lets the user adjust the camera settings of the current viewport.
 */
class AdjustViewDialog : public QDockWidget, public UserInterfaceComponent<MainWindowUI>
{
    Q_OBJECT

public:

    /// Constructor.
    AdjustViewDialog(MainWindowUI& ui, Viewport* viewport, QWidget* parentWindow);

private Q_SLOTS:

    /// Event handler for the Cancel button.
    void onCancel();

    /// Is called when the user has changed the camera settings.
    void onAdjustCamera();

    /// Updates the values displayed in the dialog.
    void updateGUI();

private:

    bool _isUpdatingGUI = false;

    QRadioButton* _camPerspective;
    QRadioButton* _camParallel;

    SpinnerWidget* _camPosXSpinner;
    SpinnerWidget* _camPosYSpinner;
    SpinnerWidget* _camPosZSpinner;

    SpinnerWidget* _camDirXSpinner;
    SpinnerWidget* _camDirYSpinner;
    SpinnerWidget* _camDirZSpinner;

    QRadioButton* _constrainRotationBtn;
    QRadioButton* _rollAngleBtn;
    SpinnerWidget* _rollAngleSpinner;
    SpinnerWidget* _upDirXSpinner;
    SpinnerWidget* _upDirYSpinner;
    SpinnerWidget* _upDirZSpinner;

    SpinnerWidget* _camFOVAngleSpinner;
    SpinnerWidget* _camFOVSpinner;

    RefTargetListener<Viewport> _viewportListener;
    Viewport::ViewType _oldViewType;
    AffineTransformation _oldCameraTM;
    FloatType _oldFOV;
};

}   // End of namespace
