80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop 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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It 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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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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namespace style {
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struct MediaSlider;
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} // namespace style
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namespace Ui {
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class MediaSlider : public TWidget {
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public:
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MediaSlider(QWidget *parent, const style::MediaSlider &st);
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float64 value() const;
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void setValue(float64 value, bool animated);
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void setFadeOpacity(float64 opacity);
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using Callback = base::lambda_unique<void(float64)>;
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void setChangeProgressCallback(Callback &&callback) {
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_changeProgressCallback = std_::move(callback);
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}
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void setChangeFinishedCallback(Callback &&callback) {
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_changeFinishedCallback = std_::move(callback);
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}
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protected:
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void paintEvent(QPaintEvent *e) override;
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void mouseMoveEvent(QMouseEvent *e) override;
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void mousePressEvent(QMouseEvent *e) override;
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void mouseReleaseEvent(QMouseEvent *e) override;
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void enterEvent(QEvent *e) override;
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void leaveEvent(QEvent *e) override;
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private:
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void step_value(float64 ms, bool timer);
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void setOver(bool over);
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void updateDownValueFromPos(int pos);
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int lineLeft() const;
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int lineWidth() const;
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const style::MediaSlider &_st;
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Callback _changeProgressCallback;
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Callback _changeFinishedCallback;
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bool _over = false;
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FloatAnimation _a_over;
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anim::fvalue a_value = { 0., 0. };
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Animation _a_value;
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bool _mouseDown = false;
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float64 _downValue = 0.;
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float64 _fadeOpacity = 1.;
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};
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} // namespace Ui
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