83 lines
2.1 KiB
C++
83 lines
2.1 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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#pragma once
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namespace Ui {
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class SendActionAnimation {
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public:
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using Type = SendAction::Type;
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void start(Type type);
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void stop();
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int width() const {
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return _impl ? _impl->width() : 0;
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}
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void paint(Painter &p, style::color color, int x, int y, int outerWidth, TimeMs ms) {
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if (_impl) {
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_impl->paint(p, color, x, y, outerWidth, ms);
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}
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}
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explicit operator bool() const {
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return _impl != nullptr;
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}
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class Impl {
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public:
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using Type = SendAction::Type;
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Impl(int period) : _period(period), _started(getms()) {
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}
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struct MetaData {
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int index;
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std_::unique_ptr<Impl> (*creator)();
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};
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virtual const MetaData *metaData() const = 0;
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bool supports(Type type) const;
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virtual int width() const = 0;
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void paint(Painter &p, style::color color, int x, int y, int outerWidth, TimeMs ms) {
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paintFrame(p, color, x, y, outerWidth, qMax(ms - _started, 0LL) % _period);
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}
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virtual ~Impl() = default;
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private:
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virtual void paintFrame(Painter &p, style::color color, int x, int y, int outerWidth, int frameMs) = 0;
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int _period = 1;
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TimeMs _started = 0;
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};
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~SendActionAnimation();
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private:
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std_::unique_ptr<Impl> createByType(Type type);
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std_::unique_ptr<Impl> _impl;
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};
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} // namespace Ui
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