138 lines
3.1 KiB
C++
138 lines
3.1 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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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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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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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 RATIONALSLIDER_H
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#define RATIONALSLIDER_H
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#include <QMouseEvent>
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#include "base/decimalsliderbase.h"
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#include "common/rational.h"
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namespace olive {
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/**
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* @brief A olive::rational based slider
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*
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* A slider that can display rationals as either timecode (drop or non-drop), a timestamp (frames),
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* or a float (seconds).
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*/
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class RationalSlider : public DecimalSliderBase
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{
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Q_OBJECT
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public:
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/**
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* @brief enum containing the possibly display types
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*/
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enum DisplayType {
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kTime,
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kFloat,
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kRational
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};
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RationalSlider(QWidget* parent = nullptr);
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/**
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* @brief Returns the sliders value as a rational
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*/
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rational GetValue();
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/**
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* @brief Sets the sliders default value
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*/
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void SetDefaultValue(const rational& r);
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/**
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* @brief Sets the sliders minimum value
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*/
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void SetMinimum(const rational& d);
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/**
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* @brief Sets the sliders maximum value
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*/
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void SetMaximum(const rational& d);
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/**
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* @brief Sets the display type of the slider
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*/
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void SetDisplayType(const DisplayType& type);
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/**
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* @brief Set whether the user can change the display type or not
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*/
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void SetLockDisplayType(bool e);
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/**
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* @brief Get whether the user can change the display type or not
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*/
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bool GetLockDisplayType();
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/**
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* @brief Hide display type in menu
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*/
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void DisableDisplayType(DisplayType type);
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public slots:
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/**
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* @brief Sets the sliders timebase which is also the minimum increment of the slider
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*/
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void SetTimebase(const rational& timebase);
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/**
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* @brief Sets the sliders value
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*/
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void SetValue(const rational& d);
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protected:
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virtual QString ValueToString(const QVariant& v) const override;
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virtual QVariant StringToValue(const QString& s, bool* ok) const override;
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virtual QVariant AdjustDragDistanceInternal(const QVariant &start, const double &drag) const override;
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virtual void ValueSignalEvent(const QVariant& v) override;
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virtual bool ValueGreaterThan(const QVariant& lhs, const QVariant& rhs) const override;
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virtual bool ValueLessThan(const QVariant& lhs, const QVariant& rhs) const override;
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signals:
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void ValueChanged(rational);
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private slots:
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void ShowDisplayTypeMenu();
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void SetDisplayTypeFromMenu();
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private:
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DisplayType display_type_;
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rational timebase_;
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bool lock_display_type_;
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QVector<DisplayType> disabled_;
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};
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}
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#endif // RATIONALSLIDER_H
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