428 lines
9.2 KiB
C++
428 lines
9.2 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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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "types.h"
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#include <QtCore/QTimer>
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#include <QtGui/QColor>
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class Animated;
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namespace anim {
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typedef float64 (*transition)(const float64 &delta, const float64 &dt);
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float64 linear(const float64 &delta, const float64 &dt);
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float64 sineInOut(const float64 &delta, const float64 &dt);
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float64 halfSine(const float64 &delta, const float64 &dt);
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float64 easeOutBack(const float64 &delta, const float64 &dt);
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float64 easeInCirc(const float64 &delta, const float64 &dt);
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float64 easeOutCirc(const float64 &delta, const float64 &dt);
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float64 easeInCubic(const float64 &delta, const float64 &dt);
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float64 easeOutCubic(const float64 &delta, const float64 &dt);
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float64 easeInQuint(const float64 &delta, const float64 &dt);
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float64 easeOutQuint(const float64 &delta, const float64 &dt);
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class fvalue { // float animated value
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public:
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fvalue() {
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}
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fvalue(const float64 &from) : _cur(from), _from(from), _delta(0) {
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}
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fvalue(const float64 &from, const float64 &to) : _cur(from), _from(from), _delta(to - from) {
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}
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void start(const float64 &to) {
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_from = _cur;
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_delta = to - _from;
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}
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void restart() {
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_delta = _from + _delta - _cur;
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_from = _cur;
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}
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const float64 ¤t() const {
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return _cur;
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}
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float64 to() const {
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return _from + _delta;
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}
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fvalue &update(const float64 &dt, transition func) {
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_cur = _from + (*func)(_delta, dt);
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return *this;
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}
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void finish() {
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_cur = _from + _delta;
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_from = _cur;
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_delta = 0;
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}
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private:
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float64 _cur, _from, _delta;
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};
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class ivalue { // int animated value
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public:
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ivalue() {
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}
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ivalue(int32 from) : _cur(from), _from(float64(from)), _delta(0) {
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}
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ivalue(int32 from, int32 to) : _cur(from), _from(float64(from)), _delta(float64(to - from)) {
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}
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void start(int32 to) {
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_from = float64(_cur);
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_delta = float64(to) - _from;
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}
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void restart() {
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_delta = _from + _delta - float64(_cur);
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_from = float64(_cur);
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}
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int32 current() const {
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return _cur;
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}
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int32 to() const {
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return _from + _delta;
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}
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ivalue &update(const float64 &dt, transition func) {
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_cur = qRound(_from + (*func)(_delta, dt));
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return *this;
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}
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void finish() {
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_cur = qRound(_from + _delta);
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_from = _cur;
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_delta = 0;
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}
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private:
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int32 _cur;
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float64 _from, _delta;
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};
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class cvalue { // QColor animated value
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public:
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cvalue() {
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}
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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) {
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}
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cvalue(const QColor &from, const QColor &to)
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: _cur(from)
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, _from_r(from.redF()), _from_g(from.greenF()), _from_b(from.blueF()), _from_a(from.alphaF())
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, _delta_r(to.redF() - from.redF()), _delta_g(to.greenF() - from.greenF()), _delta_b(to.blueF() - from.blueF()), _delta_a(to.alphaF() - from.alphaF())
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{
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}
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void start(const QColor &to) {
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_from_r = _cur.redF();
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_from_g = _cur.greenF();
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_from_b = _cur.blueF();
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_from_a = _cur.alphaF();
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_delta_r = to.redF() - _from_r;
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_delta_g = to.greenF() - _from_g;
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_delta_b = to.blueF() - _from_b;
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_delta_a = to.alphaF() - _from_a;
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}
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void restart() {
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_delta_r = _from_r + _delta_r - _cur.redF();
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_delta_g = _from_g + _delta_g - _cur.greenF();
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_delta_b = _from_b + _delta_b - _cur.blueF();
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_delta_a = _from_a + _delta_a - _cur.alphaF();
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_from_r = _cur.redF();
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_from_g = _cur.greenF();
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_from_b = _cur.blueF();
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_from_a = _cur.alphaF();
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}
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const QColor ¤t() const {
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return _cur;
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}
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QColor to() const {
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QColor result;
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result.setRedF(_from_r + _delta_r);
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result.setGreenF(_from_g + _delta_g);
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result.setBlueF(_from_b + _delta_b);
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result.setAlphaF(_from_a + _delta_a);
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return result;
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}
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cvalue &update(const float64 &dt, transition func) {
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_cur.setRedF(_from_r + (*func)(_delta_r, dt));
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_cur.setGreenF(_from_g + (*func)(_delta_g, dt));
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_cur.setBlueF(_from_b + (*func)(_delta_b, dt));
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_cur.setAlphaF(_from_a + (*func)(_delta_a, dt));
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return *this;
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}
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void finish() {
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_cur.setRedF(_from_r + _delta_r);
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_cur.setGreenF(_from_g + _delta_g);
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_cur.setBlueF(_from_b + _delta_b);
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_cur.setAlphaF(_from_a + _delta_a);
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_from_r = _cur.redF();
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_from_g = _cur.greenF();
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_from_b = _cur.blueF();
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_from_a = _cur.alphaF();
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_delta_r = _delta_g = _delta_b = _delta_a = 0;
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}
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private:
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QColor _cur;
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float64 _from_r, _from_g, _from_b, _from_a, _delta_r, _delta_g, _delta_b, _delta_a;
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};
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void start(Animated *obj);
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void step(Animated *obj);
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void stop(Animated *obj);
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void startManager();
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void stopManager();
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};
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class Animated {
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public:
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Animated() : animStarted(0), animInProcess(false) {
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}
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virtual bool animStep(float64 ms) = 0;
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void animReset() {
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animStarted = float64(getms());
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}
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virtual ~Animated() {
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if (animating()) {
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anim::stop(this);
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}
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}
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bool animating() const {
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return animInProcess;
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}
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private:
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float64 animStarted;
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bool animInProcess;
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friend class AnimationManager;
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};
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class AnimationFunc {
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public:
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virtual bool animStep(float64 ms) = 0;
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virtual ~AnimationFunc() {
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}
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};
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template <typename Type>
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class AnimationFuncOwned : public AnimationFunc {
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public:
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typedef bool (Type::*Method)(float64);
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AnimationFuncOwned(Type *obj, Method method) : _obj(obj), _method(method) {
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}
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bool animStep(float64 ms) {
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return (_obj->*_method)(ms);
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}
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private:
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Type *_obj;
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Method _method;
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};
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template <typename Type>
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AnimationFunc *animFunc(Type *obj, typename AnimationFuncOwned<Type>::Method method) {
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return new AnimationFuncOwned<Type>(obj, method);
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}
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class Animation : public Animated {
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public:
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Animation(AnimationFunc *func) : _func(func) {
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}
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void start() {
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anim::start(this);
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}
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void stop() {
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anim::stop(this);
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}
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//Animation
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bool animStep(float64 ms) {
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return _func->animStep(ms);
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}
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~Animation() {
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delete _func;
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}
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private:
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AnimationFunc *_func;
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};
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class AnimationManager : public QObject {
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Q_OBJECT
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public:
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AnimationManager() : timer(this), iterating(false) {
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timer.setSingleShot(false);
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connect(&timer, SIGNAL(timeout()), this, SLOT(timeout()));
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}
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void start(Animated *obj) {
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obj->animReset();
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if (iterating) {
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toStart.insert(obj);
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if (!toStop.isEmpty()) {
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toStop.remove(obj);
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}
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} else {
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if (!objs.size()) {
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timer.start(AnimationTimerDelta);
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}
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objs.insert(obj);
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}
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obj->animInProcess = true;
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}
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void step(Animated *obj) {
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if (iterating) return;
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float64 ms = float64(getms());
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AnimObjs::iterator i = objs.find(obj);
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if (i != objs.cend()) {
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Animated *obj = *i;
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if (!obj->animStep(ms - obj->animStarted)) {
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objs.erase(i);
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if (!objs.size()) {
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timer.stop();
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}
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obj->animInProcess = false;
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}
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}
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}
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void stop(Animated *obj) {
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if (iterating) {
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toStop.insert(obj);
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if (!toStart.isEmpty()) {
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toStart.insert(obj);
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}
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} else {
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AnimObjs::iterator i = objs.find(obj);
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if (i != objs.cend()) {
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objs.erase(i);
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if (!objs.size()) {
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timer.stop();
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}
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}
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}
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obj->animInProcess = false;
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}
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public slots:
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void timeout() {
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iterating = true;
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float64 ms = float64(getms());
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for (AnimObjs::iterator i = objs.begin(), e = objs.end(); i != e; ) {
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Animated *obj = *i;
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if (!obj->animStep(ms - obj->animStarted)) {
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i = objs.erase(i);
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obj->animInProcess = false;
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} else {
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++i;
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}
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}
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iterating = false;
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if (!toStart.isEmpty()) {
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for (AnimObjs::iterator i = toStart.begin(), e = toStart.end(); i != e; ++i) {
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objs.insert(*i);
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}
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toStart.clear();
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}
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if (!toStop.isEmpty()) {
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for (AnimObjs::iterator i = toStop.begin(), e = toStop.end(); i != e; ++i) {
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objs.remove(*i);
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}
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toStop.clear();
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}
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if (!objs.size()) {
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timer.stop();
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}
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}
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private:
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typedef QSet<Animated*> AnimObjs;
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AnimObjs objs;
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AnimObjs toStart;
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AnimObjs toStop;
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QTimer timer;
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bool iterating;
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};
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class HistoryItem;
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class AnimatedGif : public QObject, public Animated {
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Q_OBJECT
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public:
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AnimatedGif() : msg(0), reader(0), w(0), h(0), frame(0), framesCount(0), duration(0) {
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}
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bool animStep(float64 ms);
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void start(HistoryItem *row, const QString &file);
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void stop(bool onItemRemoved = false);
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bool isNull() const {
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return !reader;
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}
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~AnimatedGif() {
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stop(true);
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}
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const QPixmap ¤t(int32 width = 0, int32 height = 0, bool rounded = false);
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signals:
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void updated();
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public:
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HistoryItem *msg;
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QImage img;
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QImageReader *reader;
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int32 w, h, frame;
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private:
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QVector<QPixmap> frames;
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QVector<QImage> images;
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QVector<int64> delays;
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int32 framesCount, duration;
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};
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