mirror of
https://github.com/vale981/tdesktop
synced 2025-03-09 20:46:58 -04:00
87ff770020
Now animation of the playback progress is processed inside the Media::Clip::Playback and the sliders just hold plain float64 value.
109 lines
2.8 KiB
C++
109 lines
2.8 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) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "media/view/media_clip_playback.h"
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#include "styles/style_mediaview.h"
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#include "media/media_audio.h"
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namespace Media {
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namespace Clip {
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Playback::Playback() : _a_value(animation(this, &Playback::step_value)) {
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}
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void Playback::updateState(const Player::TrackState &state) {
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qint64 position = 0, length = state.length;
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auto wasInLoadingState = _inLoadingState;
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if (wasInLoadingState) {
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_inLoadingState = false;
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if (_inLoadingStateChanged) {
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_inLoadingStateChanged(false);
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}
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}
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_playing = !Player::IsStopped(state.state);
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if (_playing || state.state == Player::State::Stopped) {
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position = state.position;
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} else if (state.state == Player::State::StoppedAtEnd) {
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position = state.length;
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} else {
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position = 0;
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}
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auto progress = 0.;
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if (position > length) {
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progress = 1.;
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} else if (length) {
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progress = length ? snap(float64(position) / length, 0., 1.) : 0.;
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}
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if (length != _length || position != _position || wasInLoadingState) {
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auto animated = (length && _length && progress > value());
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setValue(progress, animated);
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_position = position;
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_length = length;
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}
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}
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void Playback::updateLoadingState(float64 progress) {
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if (!_inLoadingState) {
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_inLoadingState = true;
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if (_inLoadingStateChanged) {
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_inLoadingStateChanged(true);
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}
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}
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auto animated = (progress > value());
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setValue(progress, animated);
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}
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float64 Playback::value() const {
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return a_value.current();
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}
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void Playback::setValue(float64 value, bool animated) {
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if (animated) {
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a_value.start(value);
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_a_value.start();
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} else {
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a_value = anim::value(value, value);
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_a_value.stop();
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}
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if (_valueChanged) {
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_valueChanged(a_value.current());
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}
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}
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void Playback::step_value(float64 ms, bool timer) {
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auto dt = ms / (2 * AudioVoiceMsgUpdateView);
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if (dt >= 1) {
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_a_value.stop();
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a_value.finish();
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} else {
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a_value.update(qMin(dt, 1.), anim::linear);
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}
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if (timer && _valueChanged) {
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_valueChanged(a_value.current());
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}
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}
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} // namespace Clip
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} // namespace Media
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