tdesktop/Telegram/SourceFiles/ui/abstract_button.h

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/*
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.
2015-10-03 13:16:42 +00:00
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
2016-02-08 10:56:18 +00:00
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "ui/twidget.h"
namespace Ui {
class AbstractButton : public TWidget {
Q_OBJECT
public:
enum class StateChangeSource {
ByUser = 0x00,
ByPress = 0x01,
ByHover = 0x02,
};
AbstractButton(QWidget *parent) : TWidget(parent) {
setCursor(style::cur_pointer);
}
enum {
StateNone = 0x00,
StateOver = 0x01,
StateDown = 0x02,
StateDisabled = 0x04,
};
Qt::KeyboardModifiers clickModifiers() const {
return _modifiers;
}
void clearState();
int getState() const;
void setDisabled(bool disabled = true);
void setOver(bool over, StateChangeSource source = StateChangeSource::ByUser);
bool disabled() const {
return (_state & StateDisabled);
}
void setAcceptBoth(bool acceptBoth = true);
void setClickedCallback(base::lambda<void()> &&callback) {
_clickedCallback = std_::move(callback);
}
protected:
void enterEvent(QEvent *e) override;
void leaveEvent(QEvent *e) override;
void mousePressEvent(QMouseEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
signals:
void clicked();
protected:
virtual void onStateChanged(int oldState, StateChangeSource source) {
}
Qt::KeyboardModifiers _modifiers;
int _state = StateNone;
bool _acceptBoth = false;
base::lambda<void()> _clickedCallback;
};
} // namespace Ui