tdesktop/Telegram/SourceFiles/ui/widgets/tooltip.h

70 lines
1.7 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.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
namespace Ui {
class AbstractTooltipShower {
public:
virtual QString tooltipText() const = 0;
virtual QPoint tooltipPos() const = 0;
virtual const style::Tooltip *tooltipSt() const {
return &st::defaultTooltip;
}
virtual ~AbstractTooltipShower();
};
class Tooltip : public TWidget {
Q_OBJECT
public:
static void Show(int32 delay, const AbstractTooltipShower *shower);
static void Hide();
private slots:
void onShow();
void onWndActiveChanged();
void onHideByLeave();
protected:
void paintEvent(QPaintEvent *e) override;
void hideEvent(QHideEvent *e) override;
bool eventFilter(QObject *o, QEvent *e) override;
private:
Tooltip();
~Tooltip();
void popup(const QPoint &p, const QString &text, const style::Tooltip *st);
friend class AbstractTooltipShower;
const AbstractTooltipShower *_shower = nullptr;
QTimer _showTimer;
Text _text;
QPoint _point;
const style::Tooltip *_st = nullptr;
QTimer _hideByLeaveTimer;
};
} // namespace Ui