tdesktop/Telegram/SourceFiles/gui/animation.h

651 lines
15 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) 2014-2015 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "types.h"
#include <QtCore/QTimer>
#include <QtGui/QColor>
namespace anim {
typedef float64 (*transition)(const float64 &delta, const float64 &dt);
float64 linear(const float64 &delta, const float64 &dt);
float64 sineInOut(const float64 &delta, const float64 &dt);
float64 halfSine(const float64 &delta, const float64 &dt);
float64 easeOutBack(const float64 &delta, const float64 &dt);
float64 easeInCirc(const float64 &delta, const float64 &dt);
float64 easeOutCirc(const float64 &delta, const float64 &dt);
float64 easeInCubic(const float64 &delta, const float64 &dt);
float64 easeOutCubic(const float64 &delta, const float64 &dt);
float64 easeInQuint(const float64 &delta, const float64 &dt);
float64 easeOutQuint(const float64 &delta, const float64 &dt);
class fvalue { // float animated value
public:
fvalue() {
}
fvalue(const float64 &from) : _cur(from), _from(from), _delta(0) {
}
fvalue(const float64 &from, const float64 &to) : _cur(from), _from(from), _delta(to - from) {
}
void start(const float64 &to) {
_from = _cur;
_delta = to - _from;
}
void restart() {
_delta = _from + _delta - _cur;
_from = _cur;
}
const float64 &current() const {
return _cur;
}
float64 to() const {
return _from + _delta;
}
fvalue &update(const float64 &dt, transition func) {
_cur = _from + (*func)(_delta, dt);
return *this;
}
void finish() {
_cur = _from + _delta;
_from = _cur;
_delta = 0;
}
typedef float64 Type;
private:
float64 _cur, _from, _delta;
};
class ivalue { // int animated value
public:
ivalue() {
}
ivalue(int32 from) : _cur(from), _from(float64(from)), _delta(0) {
}
ivalue(int32 from, int32 to) : _cur(from), _from(float64(from)), _delta(float64(to - from)) {
}
void start(int32 to) {
_from = float64(_cur);
_delta = float64(to) - _from;
}
void restart() {
_delta = _from + _delta - float64(_cur);
_from = float64(_cur);
}
int32 current() const {
return _cur;
}
int32 to() const {
return _from + _delta;
}
ivalue &update(const float64 &dt, transition func) {
_cur = qRound(_from + (*func)(_delta, dt));
return *this;
}
void finish() {
_cur = qRound(_from + _delta);
_from = _cur;
_delta = 0;
}
typedef int32 Type;
private:
int32 _cur;
float64 _from, _delta;
};
class cvalue { // QColor animated value
public:
cvalue() {
}
cvalue(const QColor &from) : _cur(from), _from_r(from.redF()), _from_g(from.greenF()), _from_b(from.blueF()), _from_a(from.alphaF()), _delta_r(0), _delta_g(0), _delta_b(0), _delta_a(0) {
}
cvalue(const QColor &from, const QColor &to)
: _cur(from)
, _from_r(from.redF()), _from_g(from.greenF()), _from_b(from.blueF()), _from_a(from.alphaF())
, _delta_r(to.redF() - from.redF()), _delta_g(to.greenF() - from.greenF()), _delta_b(to.blueF() - from.blueF()), _delta_a(to.alphaF() - from.alphaF())
{
}
void start(const QColor &to) {
_from_r = _cur.redF();
_from_g = _cur.greenF();
_from_b = _cur.blueF();
_from_a = _cur.alphaF();
_delta_r = to.redF() - _from_r;
_delta_g = to.greenF() - _from_g;
_delta_b = to.blueF() - _from_b;
_delta_a = to.alphaF() - _from_a;
}
void restart() {
_delta_r = _from_r + _delta_r - _cur.redF();
_delta_g = _from_g + _delta_g - _cur.greenF();
_delta_b = _from_b + _delta_b - _cur.blueF();
_delta_a = _from_a + _delta_a - _cur.alphaF();
_from_r = _cur.redF();
_from_g = _cur.greenF();
_from_b = _cur.blueF();
_from_a = _cur.alphaF();
}
const QColor &current() const {
return _cur;
}
QColor to() const {
QColor result;
result.setRedF(_from_r + _delta_r);
result.setGreenF(_from_g + _delta_g);
result.setBlueF(_from_b + _delta_b);
result.setAlphaF(_from_a + _delta_a);
return result;
}
cvalue &update(const float64 &dt, transition func) {
_cur.setRedF(_from_r + (*func)(_delta_r, dt));
_cur.setGreenF(_from_g + (*func)(_delta_g, dt));
_cur.setBlueF(_from_b + (*func)(_delta_b, dt));
_cur.setAlphaF(_from_a + (*func)(_delta_a, dt));
return *this;
}
void finish() {
_cur.setRedF(_from_r + _delta_r);
_cur.setGreenF(_from_g + _delta_g);
_cur.setBlueF(_from_b + _delta_b);
_cur.setAlphaF(_from_a + _delta_a);
_from_r = _cur.redF();
_from_g = _cur.greenF();
_from_b = _cur.blueF();
_from_a = _cur.alphaF();
_delta_r = _delta_g = _delta_b = _delta_a = 0;
}
typedef QColor Type;
private:
QColor _cur;
float64 _from_r, _from_g, _from_b, _from_a, _delta_r, _delta_g, _delta_b, _delta_a;
};
void startManager();
void stopManager();
};
class Animation;
class AnimationCallbacks {
public:
virtual void start() {
}
virtual void step(Animation *a, uint64 ms, bool timer) = 0;
virtual ~AnimationCallbacks() {
}
};
class Animation {
public:
Animation(AnimationCallbacks *cb) : _cb(cb), _animating(false) {
}
void start();
void stop();
void step(uint64 ms, bool timer = false) {
_cb->step(this, ms, timer);
}
void step() {
step(getms(), false);
}
bool animating() const {
return _animating;
}
~Animation() {
if (_animating) stop();
delete _cb;
}
private:
Animation(const Animation &);
Animation &operator=(const Animation &);
AnimationCallbacks *_cb;
bool _animating;
};
template <typename Type>
class AnimationCallbacksRelative : public AnimationCallbacks {
public:
typedef void (Type::*Method)(float64, bool);
AnimationCallbacksRelative(Type *obj, Method method) : _started(0), _obj(obj), _method(method) {
}
void start() {
_started = float64(getms());
}
void step(Animation *a, uint64 ms, bool timer) {
(_obj->*_method)(ms - _started, timer);
}
private:
float64 _started;
Type *_obj;
Method _method;
};
template <typename Type>
AnimationCallbacks *animation(Type *obj, typename AnimationCallbacksRelative<Type>::Method method) {
return new AnimationCallbacksRelative<Type>(obj, method);
}
template <typename Type>
class AnimationCallbacksAbsolute : public AnimationCallbacks {
public:
typedef void (Type::*Method)(uint64, bool);
AnimationCallbacksAbsolute(Type *obj, Method method) : _obj(obj), _method(method) {
}
void step(Animation *a, uint64 ms, bool timer) {
(_obj->*_method)(ms, timer);
}
private:
Type *_obj;
Method _method;
};
template <typename Type>
AnimationCallbacks *animation(Type *obj, typename AnimationCallbacksAbsolute<Type>::Method method) {
return new AnimationCallbacksAbsolute<Type>(obj, method);
}
template <typename Type, typename Param>
class AnimationCallbacksRelativeWithParam : public AnimationCallbacks {
public:
typedef void (Type::*Method)(Param, float64, bool);
AnimationCallbacksRelativeWithParam(Param param, Type *obj, Method method) : _started(0), _param(param), _obj(obj), _method(method) {
}
void start() {
_started = float64(getms());
}
void step(Animation *a, uint64 ms, bool timer) {
(_obj->*_method)(_param, ms - _started, timer);
}
private:
float64 _started;
Param _param;
Type *_obj;
Method _method;
};
template <typename Type, typename Param>
AnimationCallbacks *animation(Param param, Type *obj, typename AnimationCallbacksRelativeWithParam<Type, Param>::Method method) {
return new AnimationCallbacksRelativeWithParam<Type, Param>(param, obj, method);
}
template <typename Type, typename Param>
class AnimationCallbacksAbsoluteWithParam : public AnimationCallbacks {
public:
typedef void (Type::*Method)(Param, uint64, bool);
AnimationCallbacksAbsoluteWithParam(Param param, Type *obj, Method method) : _param(param), _obj(obj), _method(method) {
}
void step(Animation *a, uint64 ms, bool timer) {
(_obj->*_method)(_param, ms, timer);
}
private:
Param _param;
Type *_obj;
Method _method;
};
template <typename Type, typename Param>
AnimationCallbacks *animation(Param param, Type *obj, typename AnimationCallbacksAbsoluteWithParam<Type, Param>::Method method) {
return new AnimationCallbacksAbsoluteWithParam<Type, Param>(param, obj, method);
}
template <typename AnimType>
class SimpleAnimation {
public:
typedef Function<void> Callbacks;
SimpleAnimation() : _data(0) {
}
bool animating(uint64 ms) {
if (_data && _data->_a.animating()) {
_data->_a.step(ms);
return _data && _data->_a.animating();
}
return false;
}
bool isNull() {
return !_data;
}
typename AnimType::Type current() {
return _data ? _data->a.current() : typename AnimType::Type();
}
typename AnimType::Type current(uint64 ms, const typename AnimType::Type &def) {
return animating(ms) ? current() : def;
}
void setup(const typename AnimType::Type &from, Callbacks *update) {
if (!_data) {
_data = new Data(from, update, animation(this, &SimpleAnimation<AnimType>::step));
} else {
delete update;
_data->a = AnimType(from, from);
}
}
void start(const typename AnimType::Type &to, float64 duration, anim::transition transition = anim::linear) {
if (_data) {
_data->a.start(to);
_data->_a.start();
_data->duration = duration;
_data->transition = transition;
}
}
~SimpleAnimation() {
delete _data;
setBadPointer(_data);
}
private:
typedef struct _Data {
_Data(const typename AnimType::Type &from, Callbacks *update, AnimationCallbacks *acb)
: a(from, from)
, _a(acb)
, update(update)
, duration(0)
, transition(anim::linear) {
}
~_Data() {
delete update;
setBadPointer(update);
}
AnimType a;
Animation _a;
Callbacks *update;
float64 duration;
anim::transition transition;
} Data;
Data *_data;
void step(float64 ms, bool timer) {
float64 dt = (ms >= _data->duration) ? 1 : (ms / _data->duration);
if (dt >= 1) {
_data->a.finish();
_data->_a.stop();
} else {
_data->a.update(dt, _data->transition);
}
if (timer) {
_data->update->call();
}
if (!_data->_a.animating()) {
delete _data;
_data = 0;
}
}
};
typedef SimpleAnimation<anim::fvalue> FloatAnimation;
typedef SimpleAnimation<anim::ivalue> IntAnimation;
typedef SimpleAnimation<anim::cvalue> ColorAnimation;
#define EnsureAnimation(animation, from, callback) if ((animation).isNull()) { (animation).setup((from), (callback)); }
class ClipReader;
class AnimationManager : public QObject {
Q_OBJECT
public:
AnimationManager();
void start(Animation *obj);
void stop(Animation *obj);
public slots:
void timeout();
void clipReinit(ClipReader *reader, qint32 threadIndex);
void clipRepaint(ClipReader *reader, qint32 threadIndex);
private:
typedef QMap<Animation*, NullType> AnimatingObjects;
AnimatingObjects _objects, _starting, _stopping;
QTimer _timer;
bool _iterating;
};
class FileLocation;
enum ClipState {
ClipReading,
ClipError,
};
struct ClipFrameRequest {
ClipFrameRequest() : factor(0), framew(0), frameh(0), outerw(0), outerh(0), rounded(false) {
}
bool valid() const {
return factor > 0;
}
int32 factor;
int32 framew, frameh;
int32 outerw, outerh;
bool rounded;
};
template <typename Type>
class Atomic {
public:
Atomic(const Type &value = Type()) : _v(1, value) {
}
Type get() const {
QVector<Type> v(_v);
return v.at(0);
}
void set(const Type &value) {
QVector<Type> v(1, value);
_v = v;
}
private:
QVector<Type> _v;
};
enum ClipReaderNotification {
ClipReaderReinit,
ClipReaderRepaint,
};
class ClipReaderPrivate;
class ClipReader {
public:
typedef Function1<void, ClipReaderNotification> Callback;
ClipReader(const FileLocation &location, const QByteArray &data, Callback *cb = 0);
static void callback(ClipReader *reader, int32 threadIndex, ClipReaderNotification notification); // reader can be deleted
void setAutoplay() {
_autoplay = true;
}
bool autoplay() const {
return _autoplay;
}
void start(int32 framew, int32 frameh, int32 outerw, int32 outerh, bool rounded);
QPixmap current(int32 framew, int32 frameh, int32 outerw, int32 outerh, uint64 ms);
QImage frameOriginal() const {
return _currentOriginal;
}
bool currentDisplayed() const {
return _currentDisplayed.get();
}
bool paused() const {
return _paused.get();
}
int32 threadIndex() const {
return _threadIndex;
}
int32 width() const;
int32 height() const;
ClipState state() const;
bool started() const {
return _request.valid();
}
bool ready() const;
void stop();
void error();
~ClipReader();
private:
Callback *_cb;
ClipState _state;
ClipFrameRequest _request;
mutable int32 _width, _height;
QPixmap _current;
QImage _currentOriginal, _cacheForResize;
Atomic<bool> _currentDisplayed, _paused;
Atomic<uint64> _lastDisplayMs;
int32 _threadIndex;
bool _autoplay;
friend class ClipReadManager;
ClipReaderPrivate *_private;
};
static ClipReader * const BadClipReader = reinterpret_cast<ClipReader * const>(&SharedMemoryLocation0);
enum ClipProcessResult {
ClipProcessError,
ClipProcessStarted,
ClipProcessReinit,
ClipProcessRepaint,
ClipProcessWait,
};
class ClipReadManager : public QObject {
Q_OBJECT
public:
ClipReadManager(QThread *thread);
int32 loadLevel() const {
return _loadLevel.loadAcquire();
}
void append(ClipReader *reader, const FileLocation &location, const QByteArray &data);
void start(ClipReader *reader);
void update(ClipReader *reader);
void stop(ClipReader *reader);
bool carries(ClipReader *reader) const;
~ClipReadManager();
signals:
void processDelayed();
void reinit(ClipReader *reader, qint32 threadIndex);
void repaint(ClipReader *reader, qint32 threadIndex);
public slots:
void process();
void finish();
private:
void clear();
QAtomicInt _loadLevel;
typedef QMap<ClipReader*, ClipReaderPrivate*> ReaderPointers;
ReaderPointers _readerPointers;
mutable QMutex _readerPointersMutex;
bool handleProcessResult(ClipReaderPrivate *reader, ClipProcessResult result, uint64 ms);
enum ResultHandleState {
ResultHandleRemove,
ResultHandleStop,
ResultHandleContinue,
};
ResultHandleState handleResult(ClipReaderPrivate *reader, ClipProcessResult result, uint64 ms);
typedef QMap<ClipReaderPrivate*, uint64> Readers;
Readers _readers;
QTimer _timer;
QThread *_processingInThread;
bool _needReProcess;
};
MTPDocumentAttribute clipReadAnimatedAttributes(const QString &fname, const QByteArray &data, QImage &cover);