ukui-screensaver/src/hoverwidget.cpp

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "hoverwidget.h"
#include <QPainter>
#include <QStyleOption>
#include <QDebug>
#define THEME_QT_SCHEMA "org.ukui.style"
#define MODE_QT_KEY "style-name"
HoverWidget::HoverWidget(QString mname, QWidget *parent) :
QWidget(parent),
_name(mname)
{
setAttribute(Qt::WA_DeleteOnClose);
}
HoverWidget::~HoverWidget()
{
}
void HoverWidget::enterEvent(QEvent *event){
emit enterWidget(_name);
QWidget::enterEvent(event);
}
void HoverWidget::leaveEvent(QEvent *event){
emit leaveWidget(_name);
QWidget::leaveEvent(event);
}
//子类化一个QWidget为了能够使用样式表则需要提供paintEvent事件。
//这是因为QWidget的paintEvent()是空的而样式表要通过paint被绘制到窗口中。
void HoverWidget::paintEvent(QPaintEvent *event){
Q_UNUSED(event)
QStyleOption opt;
opt.init(this);
QPainter p(this);
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}