100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
/*
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* Olive Community Edition - Non-Linear Video Editor
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* Copyright (C) 2025 Olive CE Team
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TIMELINESCALEDOBJECT_H
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#define TIMELINESCALEDOBJECT_H
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#include <olive/core/core.h>
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#include <QWidget>
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#include "node/block/block.h"
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namespace olive
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{
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/**
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* @brief Provides base functionality for any object that uses time and scale
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*/
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class TimeScaledObject {
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public:
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TimeScaledObject();
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virtual ~TimeScaledObject() = default;
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void SetTimebase(const rational &timebase);
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const rational &timebase() const;
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const double &timebase_dbl() const;
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static rational SceneToTime(const double &x, const double &x_scale,
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const rational &timebase, bool round = false);
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static rational SceneToTimeNoGrid(const double &x, const double &x_scale);
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const double &GetScale() const;
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const double &GetMaximumScale() const
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{
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return max_scale_;
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}
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void SetScale(const double &scale);
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void SetScaleFromDimensions(double viewport_width, double content_width);
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static double CalculateScaleFromDimensions(double viewport_sz,
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double content_sz);
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static double CalculatePaddingFromDimensionScale(double viewport_sz);
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double TimeToScene(const rational &time) const;
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rational SceneToTime(const double &x, bool round = false) const;
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rational SceneToTimeNoGrid(const double &x) const;
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protected:
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virtual void TimebaseChangedEvent(const rational &)
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{
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}
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virtual void ScaleChangedEvent(const double &)
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{
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}
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void SetMaximumScale(const double &max);
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void SetMinimumScale(const double &min);
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private:
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rational timebase_;
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double timebase_dbl_;
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double scale_;
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double min_scale_;
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double max_scale_;
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static const int kCalculateDimensionsPadding;
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};
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class TimelineScaledWidget : public QWidget, public TimeScaledObject {
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Q_OBJECT
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public:
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TimelineScaledWidget(QWidget *parent = nullptr);
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};
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}
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#endif // TIMELINESCALEDOBJECT_H
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