FreeCAD / src /Gui /Navigation /NavigationAnimator.cpp

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// SPDX-License-Identifier: LGPL-2.1-or-later
/****************************************************************************
 *                                                                          *
 *   Copyright (c) 2023 Bas Ruigrok (Rexbas) <Rexbas@proton.me>             *
 *                                                                          *
 *   This file is part of FreeCAD.                                          *
 *                                                                          *
 *   FreeCAD is free software: you can redistribute it and/or modify it     *
 *   under the terms of the GNU Lesser General Public License as            *
 *   published by the Free Software Foundation, either version 2.1 of the   *
 *   License, or (at your option) any later version.                        *
 *                                                                          *
 *   FreeCAD 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       *
 *   Lesser General Public License for more details.                        *
 *                                                                          *
 *   You should have received a copy of the GNU Lesser General Public       *
 *   License along with FreeCAD. If not, see                                *
 *   <https://www.gnu.org/licenses/>.                                       *
 *                                                                          *
 ***************************************************************************/


#include "NavigationAnimator.h"
#include "NavigationAnimation.h"
#include <QEventLoop>

using namespace Gui;

NavigationAnimator::NavigationAnimator()
    : activeAnimation(nullptr)
{}

NavigationAnimator::~NavigationAnimator()
{
    stop();
}

/**
 * @brief Start an animation
 *
 * @param animation The animation to start
 */
void NavigationAnimator::start(const std::shared_ptr<NavigationAnimation>& animation)
{
    stop();
    activeAnimation = animation;
    activeAnimation->initialize();

    connect(activeAnimation.get(), &NavigationAnimation::finished, this, [this]() {
        activeAnimation->onStop(true);
        activeAnimation.reset();
    });

    activeAnimation->start();
}

/**
 * @brief Start an animation and wait for it to finish
 *
 * @param animation The animation to start
 * @return True if the animation finished, false if interrupted
 */
bool NavigationAnimator::startAndWait(const std::shared_ptr<NavigationAnimation>& animation)
{
    stop();
    bool finished = true;
    QEventLoop loop;
    connect(animation.get(), &NavigationAnimation::finished, &loop, &QEventLoop::quit);
    connect(animation.get(), &NavigationAnimation::interrupted, &loop, [&finished, &loop]() {
        finished = false;
        loop.quit();
    });
    start(animation);
    loop.exec();
    return finished;
}

/**
 * @brief Stops an active animation and releases shared ownership of the animation
 */
void NavigationAnimator::stop()
{
    if (activeAnimation && activeAnimation->state() != QAbstractAnimation::State::Stopped) {
        disconnect(activeAnimation.get(), &NavigationAnimation::finished, 0, 0);
        Q_EMIT activeAnimation->interrupted();
        activeAnimation->stop();
        activeAnimation->onStop(false);
        activeAnimation.reset();
    }
}

/**
 * @return Whether or not an animation is active
 */
bool NavigationAnimator::isAnimating() const
{
    if (activeAnimation != nullptr) {
        return activeAnimation->state() == QAbstractAnimation::State::Running;
    }

    return false;
}

	// SPDX-License-Identifier: LGPL-2.1-or-later
	/****************************************************************************
	* *
	* Copyright (c) 2023 Bas Ruigrok (Rexbas) <Rexbas@proton.me> *
	* *
	* This file is part of FreeCAD. *
	* *
	* FreeCAD is free software: you can redistribute it and/or modify it *
	* under the terms of the GNU Lesser General Public License as *
	* published by the Free Software Foundation, either version 2.1 of the *
	* License, or (at your option) any later version. *
	* *
	* FreeCAD 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 *
	* Lesser General Public License for more details. *
	* *
	* You should have received a copy of the GNU Lesser General Public *
	* License along with FreeCAD. If not, see *
	* <https://www.gnu.org/licenses/>. *
	* *
	***************************************************************************/


	#include "NavigationAnimator.h"
	#include "NavigationAnimation.h"
	#include <QEventLoop>

	using namespace Gui;

	NavigationAnimator::NavigationAnimator()
	: activeAnimation(nullptr)
	{}

	NavigationAnimator::~NavigationAnimator()
	{
	stop();
	}

	/**
	* @brief Start an animation
	*
	* @param animation The animation to start
	*/
	void NavigationAnimator::start(const std::shared_ptr<NavigationAnimation>& animation)
	{
	stop();
	activeAnimation = animation;
	activeAnimation->initialize();

	connect(activeAnimation.get(), &NavigationAnimation::finished, this, [this]() {
	activeAnimation->onStop(true);
	activeAnimation.reset();
	});

	activeAnimation->start();
	}

	/**
	* @brief Start an animation and wait for it to finish
	*
	* @param animation The animation to start
	* @return True if the animation finished, false if interrupted
	*/
	bool NavigationAnimator::startAndWait(const std::shared_ptr<NavigationAnimation>& animation)
	{
	stop();
	bool finished = true;
	QEventLoop loop;
	connect(animation.get(), &NavigationAnimation::finished, &loop, &QEventLoop::quit);
	connect(animation.get(), &NavigationAnimation::interrupted, &loop, [&finished, &loop]() {
	finished = false;
	loop.quit();
	});
	start(animation);
	loop.exec();
	return finished;
	}

	/**
	* @brief Stops an active animation and releases shared ownership of the animation
	*/
	void NavigationAnimator::stop()
	{
	if (activeAnimation && activeAnimation->state() != QAbstractAnimation::State::Stopped) {
	disconnect(activeAnimation.get(), &NavigationAnimation::finished, 0, 0);
	Q_EMIT activeAnimation->interrupted();
	activeAnimation->stop();
	activeAnimation->onStop(false);
	activeAnimation.reset();
	}
	}

	/**
	* @return Whether or not an animation is active
	*/
	bool NavigationAnimator::isAnimating() const
	{
	if (activeAnimation != nullptr) {
	return activeAnimation->state() == QAbstractAnimation::State::Running;
	}

	return false;
	}