110 lines
2.7 KiB
C++
110 lines
2.7 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 John Preston, https://desktop.telegram.org
|
|
*/
|
|
#include "stdafx.h"
|
|
#include "button.h"
|
|
|
|
Button::Button(QWidget *parent) : TWidget(parent), _state(StateNone), _acceptBoth(false) {
|
|
}
|
|
|
|
void Button::leaveEvent(QEvent *e) {
|
|
if (_state & StateDown) return;
|
|
|
|
setOver(false, ButtonByHover);
|
|
setMouseTracking(false);
|
|
return TWidget::leaveEvent(e);
|
|
}
|
|
|
|
void Button::enterEvent(QEvent *e) {
|
|
setOver(true, ButtonByHover);
|
|
setMouseTracking(true);
|
|
return TWidget::enterEvent(e);
|
|
}
|
|
|
|
void Button::setAcceptBoth(bool acceptBoth) {
|
|
_acceptBoth = acceptBoth;
|
|
}
|
|
|
|
void Button::mousePressEvent(QMouseEvent *e) {
|
|
if (_acceptBoth || e->buttons() & Qt::LeftButton) {
|
|
if (!(_state & StateOver)) {
|
|
enterEvent(0);
|
|
}
|
|
if (!(_state & StateDown)) {
|
|
int oldState = _state;
|
|
_state |= StateDown;
|
|
emit stateChanged(oldState, ButtonByPress);
|
|
|
|
e->accept();
|
|
}
|
|
}
|
|
}
|
|
|
|
void Button::mouseMoveEvent(QMouseEvent *e) {
|
|
if (rect().contains(e->pos())) {
|
|
setOver(true, ButtonByHover);
|
|
} else {
|
|
setOver(false, ButtonByHover);
|
|
}
|
|
}
|
|
|
|
void Button::mouseReleaseEvent(QMouseEvent *e) {
|
|
if (_state & StateDown) {
|
|
int oldState = _state;
|
|
_state &= ~StateDown;
|
|
emit stateChanged(oldState, ButtonByPress);
|
|
if (oldState & StateOver) {
|
|
emit clicked();
|
|
} else {
|
|
leaveEvent(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Button::setOver(bool over, ButtonStateChangeSource source) {
|
|
if (over && !(_state & StateOver)) {
|
|
int oldState = _state;
|
|
_state |= StateOver;
|
|
emit stateChanged(oldState, source);
|
|
} else if (!over && (_state & StateOver)) {
|
|
int oldState = _state;
|
|
_state &= ~StateOver;
|
|
emit stateChanged(oldState, source);
|
|
}
|
|
}
|
|
|
|
void Button::setDisabled(bool disabled) {
|
|
int oldState = _state;
|
|
if (disabled && !(_state & StateDisabled)) {
|
|
_state |= StateDisabled;
|
|
emit stateChanged(oldState, ButtonByUser);
|
|
} else if (!disabled && (_state & StateDisabled)) {
|
|
_state &= ~StateDisabled;
|
|
emit stateChanged(oldState, ButtonByUser);
|
|
}
|
|
}
|
|
|
|
void Button::clearState() {
|
|
int oldState = _state;
|
|
_state = StateNone;
|
|
emit stateChanged(oldState, ButtonByUser);
|
|
}
|
|
|
|
int Button::getState() const {
|
|
return _state;
|
|
}
|