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yanghao
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/* screenmodel.cpp
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* Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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**/
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#include "screenmodel.h"
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#include <QDesktopWidget>
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#include <QApplication>
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#include <QDebug>
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ScreenModel::ScreenModel(QObject *parent)
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: QAbstractListModel(parent),
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_desktop(QApplication::desktop())
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{
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loadScreens();
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connect(_desktop, &QDesktopWidget::workAreaResized, this, &ScreenModel::onScreenResized);
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connect(_desktop, &QDesktopWidget::resized, this, &ScreenModel::onScreenResized);
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connect(_desktop, &QDesktopWidget::screenCountChanged, this, &ScreenModel::onScreenCountChanged);
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}
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int ScreenModel::rowCount(const QModelIndex &parent) const
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{
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if(parent == QModelIndex()){
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return m_screen.size();
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}
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return 0;
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}
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QVariant ScreenModel::data(const QModelIndex &index, int role) const
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{
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if(!index.isValid()){
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return QVariant();
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}
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int row = index.row();
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if(row < m_screen.size() && role == Qt::UserRole){
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return m_screen[row];
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} else {
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return QVariant();
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}
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}
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void ScreenModel::onScreenResized(int screen)
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{
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if(screen >= 0 && screen < m_screen.size()){
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m_screen[screen] = _desktop->screenGeometry(screen);
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}
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QModelIndex index = createIndex(screen, 0);
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emit dataChanged(index, index);
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}
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void ScreenModel::onScreenCountChanged(int newCount)
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{
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Q_UNUSED(newCount)
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loadScreens();
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}
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void ScreenModel::loadScreens()
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{
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beginResetModel();
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m_screen.clear();
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for(int i = 0; i < _desktop->screenCount(); i++){
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m_screen.append(_desktop->screenGeometry(i));
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}
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endResetModel();
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}
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