tdesktop/Telegram/SourceFiles/ui/buttons/history_down_button.h

68 lines
1.6 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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "ui/button.h"
namespace Ui {
class HistoryDownButton : public Button {
public:
HistoryDownButton(QWidget *parent);
void setUnreadCount(int unreadCount);
int unreadCount() const {
return _unreadCount;
}
bool hidden() const;
void showAnimated();
void hideAnimated();
void finishAnimation();
protected:
void paintEvent(QPaintEvent *e) override;
void onStateChanged(int oldState, ButtonStateChangeSource source) override;
private:
void toggleAnimated();
void repaintCallback() {
update();
}
void step_arrowOver(float64 ms, bool timer);
QPixmap _cache;
bool _shown = false;
anim::fvalue a_arrowOpacity;
Animation _a_arrowOver;
FloatAnimation _a_show;
int _unreadCount = 0;
};
} // namespace Ui