tdesktop/Telegram/SourceFiles/ui/animation.cpp

205 lines
4.7 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It 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 General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "animation.h"
#include "media/media_clip_reader.h"
namespace Media {
namespace Clip {
Reader *const ReaderPointer::BadPointer = SharedMemoryLocation<Reader, 0>();
ReaderPointer::~ReaderPointer() {
if (valid()) {
delete _pointer;
}
_pointer = nullptr;
}
} // namespace Clip
} // namespace Media
namespace {
AnimationManager *_manager = nullptr;
bool AnimationsDisabled = false;
} // namespace
namespace anim {
transition linear = [](const float64 &delta, const float64 &dt) {
return delta * dt;
};
transition sineInOut = [](const float64 &delta, const float64 &dt) {
return -(delta / 2) * (cos(M_PI * dt) - 1);
};
transition halfSine = [](const float64 &delta, const float64 &dt) {
return delta * sin(M_PI * dt / 2);
};
transition easeOutBack = [](const float64 &delta, const float64 &dt) {
static constexpr auto s = 1.70158;
const float64 t = dt - 1;
return delta * (t * t * ((s + 1) * t + s) + 1);
};
transition easeInCirc = [](const float64 &delta, const float64 &dt) {
return -delta * (sqrt(1 - dt * dt) - 1);
};
transition easeOutCirc = [](const float64 &delta, const float64 &dt) {
const float64 t = dt - 1;
return delta * sqrt(1 - t * t);
};
transition easeInCubic = [](const float64 &delta, const float64 &dt) {
return delta * dt * dt * dt;
};
transition easeOutCubic = [](const float64 &delta, const float64 &dt) {
const float64 t = dt - 1;
return delta * (t * t * t + 1);
};
transition easeInQuint = [](const float64 &delta, const float64 &dt) {
const float64 t2 = dt * dt;
return delta * t2 * t2 * dt;
};
transition easeOutQuint = [](const float64 &delta, const float64 &dt) {
const float64 t = dt - 1, t2 = t * t;
return delta * (t2 * t2 * t + 1);
};
void startManager() {
stopManager();
_manager = new AnimationManager();
}
void stopManager() {
delete _manager;
_manager = nullptr;
Media::Clip::Finish();
}
void registerClipManager(Media::Clip::Manager *manager) {
manager->connect(manager, SIGNAL(callback(Media::Clip::Reader*,qint32,qint32)), _manager, SLOT(clipCallback(Media::Clip::Reader*,qint32,qint32)));
}
bool Disabled() {
return AnimationsDisabled;
}
void SetDisabled(bool disabled) {
AnimationsDisabled = disabled;
}
} // anim
void BasicAnimation::start() {
if (!_manager) return;
_callbacks.start();
_manager->start(this);
_animating = true;
}
void BasicAnimation::stop() {
if (!_manager) return;
_animating = false;
_manager->stop(this);
}
AnimationManager::AnimationManager() : _timer(this), _iterating(false) {
_timer.setSingleShot(false);
connect(&_timer, SIGNAL(timeout()), this, SLOT(timeout()));
}
void AnimationManager::start(BasicAnimation *obj) {
if (_iterating) {
_starting.insert(obj);
if (!_stopping.isEmpty()) {
_stopping.remove(obj);
}
} else {
if (_objects.isEmpty()) {
_timer.start(AnimationTimerDelta);
}
_objects.insert(obj);
}
}
void AnimationManager::stop(BasicAnimation *obj) {
if (_iterating) {
_stopping.insert(obj);
if (!_starting.isEmpty()) {
_starting.remove(obj);
}
} else {
auto i = _objects.find(obj);
if (i != _objects.cend()) {
_objects.erase(i);
if (_objects.empty()) {
_timer.stop();
}
}
}
}
void AnimationManager::timeout() {
_iterating = true;
auto ms = getms();
for_const (auto object, _objects) {
if (!_stopping.contains(object)) {
object->step(ms, true);
}
}
_iterating = false;
if (!_starting.isEmpty()) {
for_const (auto object, _starting) {
_objects.insert(object);
}
_starting.clear();
}
if (!_stopping.isEmpty()) {
for_const (auto object, _stopping) {
_objects.remove(object);
}
_stopping.clear();
}
if (_objects.empty()) {
_timer.stop();
}
}
void AnimationManager::clipCallback(Media::Clip::Reader *reader, qint32 threadIndex, qint32 notification) {
Media::Clip::Reader::callback(reader, threadIndex, Media::Clip::Notification(notification));
}