124 lines
2.9 KiB
C++
124 lines
2.9 KiB
C++
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/*
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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 3, 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, see <http://www.gnu.org/licenses/>.
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*
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**/
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#include <QDebug>
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#include <QDomDocument>
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#include <QFile>
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#include <QMimeDatabase>
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#include <QByteArray>
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#include <QImageReader>
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#include <QStringList>
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#include <ctime>
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#include "mbackground.h"
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#include "commonfunc.h"
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MBackground::MBackground():
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currentIndex(0)
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{
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getAllPixmap();
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}
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QString MBackground::getCurrent()
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{
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if(list.count()<0)
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return "";
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if(currentIndex>=0 && currentIndex<list.count())
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return list.at(currentIndex);
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return "";
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}
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QString MBackground::getNext()
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{
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if(list.count() == 1)
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return list.at(0);
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if(list.count()<=0 || currentIndex>=list.count() ||currentIndex<0)
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return "";
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if(currentIndex == list.count() - 1)
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currentIndex = 0;
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else
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currentIndex++;
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return list.at(currentIndex);
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}
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QString MBackground::getPrev()
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{
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if(list.count() == 1)
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return list.at(0);
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if(list.count()<=0 || currentIndex>=list.count() || currentIndex<0)
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return "";
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if(currentIndex == 0)
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currentIndex = list.count() - 1;
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else
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currentIndex--;
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return list.at(currentIndex);
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}
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QString MBackground::getRand()
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{
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if(list.count() <= 0)
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return "";
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qsrand(time(NULL));
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currentIndex = qrand() % list.count();
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return list.at(currentIndex);
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}
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void MBackground::getAllPixmap()
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{
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QDomDocument doc;
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QFile *file;
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file = new QFile("/usr/share/ukui-background-properties/focal-ubuntukylin-wallpapers.xml");
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if (!file->open(QIODevice::ReadOnly))
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{
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qDebug()<<file->fileName()<<" open failed";
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return ;
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}
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if (!doc.setContent(file))
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{
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file->close();
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return ;
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}
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file->close();
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file->deleteLater();
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QDomElement root = doc.documentElement();//读取根节点
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QDomNode node = root.firstChild();//读取第一个子节点 QDomNode 节点
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while (!node.isNull())
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{
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QDomElement node1 = node.firstChildElement("filename");
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QString fileName = node1.text();
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QMimeDatabase db;
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QMimeType mime = db.mimeTypeForFile(fileName);
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if(mime.name().startsWith("image/")){
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list.append(fileName);
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}
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node = node.nextSibling();//读取下一个兄弟节点
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}
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}
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