Qt中xml文件的读写接口类

转自 http://www.oschina.net/code/snippet_195885_9703

[文件] xprojectreader.h ~ 557B 下载(65)

01
#ifndef XPROJECTREADER_H 

02
#define XPROJECTREADER_H 

03

04
#include <vector> 

05
#include <QtXml/QtXml> 

06
#include "global.h" 

07

class QString; 

08

09

class CXProjectReader 

10
{ 

11

public: 

12

    CXProjectReader(vector<STask> *); 

13

14

    bool read(QIODevice *device); 

15

    QString readProjectName() const; 

16

17

private: 

18

    void readXProject(QDomElement); 

19

    void readTask(QDomElement); 

20

    ETASKTYPE toETaskType(QString); 

21

22

    QDomDocument m_xml; 

23

    //QXmlStreamReader m_xml; 

24

    vector<STask> *m_pVProject; 

25

    QString m_projectName; 

26
}; 

27

28
#endif // XPROJECTREADER_H

[文件] xprojectreader.cpp ~ 4KB 下载(56)

001
#include "xprojectreader.h" 

002
#include <QtGui/QtGui> 

003
#include <QtCore/QtCore> 

004

005
CXProjectReader::CXProjectReader(vector<STask> *project) 

006

    :m_pVProject(project) 

007
{ 

008

009
} 

010

011

bool CXProjectReader::read(QIODevice *device) 

012
{     

013

    QString errorStr; 

014

    int errorLine; 

015

    int errorColumn; 

016

017

    if (!m_xml.setContent(device, true, &errorStr, &errorLine, 

018

                                &errorColumn))  

019

    { 

020

    //QMessageBox::information(window(), QObject::tr("DOM Project"), 

021

 //                                QObject::tr("Parse error at line %1, column %2:\n%3") 

022

 //                                .arg(errorLine) 

023

 //                                .arg(errorColumn) 

024

 //                                .arg(errorStr)); 

025

        return false; 

026

    } 

027

028

    QDomElement root = m_xml.documentElement(); 

029

    if (root.tagName() != "project")  

030

    { 

031

        //QMessageBox::information(window(), QObject::tr("DOM Project"), 

032

        //                         QObject::tr("The file is not an xml file.")); 

033

        return false; 

034

    }  

035

    else if (root.hasAttribute("version") 

036

               && root.attribute("version") != "1.0")  

037

    { 

038

        //QMessageBox::information(window(), QObject::tr("DOM Project"), 

039

        //                         QObject::tr("The file is not an xml version 1.0 " 

040

        //                            "file.")); 

041

        return false; 

042

    } 

043

044

    m_projectName = root.attribute("name"); 

045

    readXProject(root); 

046

047

    return true; 

048
} 

049

050

void CXProjectReader::readXProject(QDomElement root) 

051
{ 

052

    //QDomElement root = m_xml.documentElement(); 

053

    QDomElement child = root.firstChildElement("task"); 

054

    while (!child.isNull())  

055

    { 

056

        readTask(child); 

057

        child = child.nextSiblingElement("task"); 

058

    } 

059
} 

060

061

void CXProjectReader::readTask(QDomElement element) 

062
{ 

063

    STask sTask; 

064

    sTask.type = toETaskType(element.attribute("name")); 

065

066

    QDomElement child = element.firstChildElement(); 

067

    while (!child.isNull()) 

068

    { 

069

        if (child.tagName() == "readonly") 

070

            sTask.readOnly = child.text().toInt(); 

071

        else if (child.tagName() == "value") 

072

            sTask.value = child.text().toStdString(); 

073

        else if (child.tagName() == "mistake") 

074

            sTask.mistake = child.text().toFloat(); 

075

        else if (child.tagName() == "keyitem") 

076

            sTask.keyItem = child.text().toInt(); 

077

        else if (child.tagName() == "vrscope") 

078

            sTask.vrScope = child.text().toInt(); 

079

080

        child = child.nextSiblingElement(); 

081

    } 

082

083

    m_pVProject->push_back(sTask); 

084
} 

085

086
ETASKTYPE CXProjectReader::toETaskType(QString name) 

087
{ 

088

    if(name == "MARK100") 

089

        return MARK100; //100V��ѹ�ı궨 

090

    else if(name == "MARK220") 

091

        return MARK220; //220V��ѹ�ı궨 

092

    else if(name == "MARK380") 

093

        return MARK380; //380V��ѹ�ı궨 

094

    else if(name == "OC100") 

095

        return OC100;   //100V��ѹ��OC�� 

096

    else if(name == "OC220") 

097

        return OC220;   //220V��ѹ��OC�� 

098

    else if(name == "OC380") 

099

        return OC380;   //380V��ѹ��OC�� 

100

    else if(name == "PRECISION100") 

101

        return PRECISION100; //100V��ѹ�ľ��ȼ�� 

102

    else if(name == "PRECISION220") 

103

        return PRECISION220; //220V��ѹ�ľ��ȼ�� 

104

    else if(name == "PRECISION380") 

105

        return PRECISION380; //380V��ѹ�ľ��ȼ�� 

106

    else if(name == "CLOCKMISTAKE") 

107

        return CLOCKMISTAKE; //ʱ����� 

108

    else if(name == "COMM") 

109

        return COMM;         //ͨѶ��ʽ��IP-PORT,192.1.1.81-8080 

110

    else if(name == "AREATERMCODE") 

111

        return AREATERMCODE;     //�ն�������,ʮ������� 

112
//    else if(name == "TERMCODE") 

113
//        return TERMCODE;     //�ն˵�ַ 

114

    else if(name == "VOLTRANKLIMIT") 

115

        return VOLTRANKLIMIT;//��ѹ�ȼ���������,100-7-10 

116

    else if(name == "APN") 

117

        return APN;         //APN,CMNET��CMWAP 

118

    else if(name == "HEARTBEAT") 

119

        return HEARTBEAT;    //������ 

120

    else if(name == "TERMTIME") 

121

        return TERMTIME;    //�ն�ʱ�� 

122

    else if(name == "FOOTDAY") 

123

        return FOOTDAY;     //������ 

124

    else if(name == "POWEROFFCLOCK") 

125

        return POWEROFFCLOCK;//�����ʱ�Ӽ��͵�ѹ��� 

126

    else if(name == "SOFTVERSION") 

127

        return SOFTVERSION;  //�ն�����汾 

128
} 

129

130

QString CXProjectReader::readProjectName() const

131
{ 

132

    return m_projectName; 

133
}

[文件] xprojectwriter.h ~ 522B 下载(49)

01
#ifndef XPROJECTWRITER_H 

02
#define XPROJECTWRITER_H 

03

04
#include <QtXml/QDomDocument> 

05
#include "global.h" 

06

class QString; 

07

08

class CXProjectWriter 

09
{ 

10

public: 

11

    CXProjectWriter(vector<STask> *); 

12

13

    bool writeFile(QIODevice *device); 

14

    void writeProjectName(QString); 

15

16

private: 

17

    void writeTask(STask, QDomElement&); 

18

    QString fromTaskType(ETASKTYPE); 

19

20

    QDomDocument m_xml; 

21

    //QXmlStreamWriter m_xml; 

22

    vector<STask> *m_pVProject; 

23

    QString m_projectName; 

24
}; 

25

26
#endif // XPROJECTWRITER_H

[文件] xprojectwriter.cpp ~ 4KB 下载(55)

001
#include "xprojectwriter.h" 

002
#include <QtGui/QtGui> 

003

004
CXProjectWriter::CXProjectWriter(vector<STask> *project) 

005

    :m_pVProject(project) 

006
{ 

007

    //m_xml.setAutoFormatting(true); 

008
} 

009

010

bool CXProjectWriter::writeFile(QIODevice *device) 

011
{ 

012

    //QDomElement root = m_xml.documentElement(); 

013

    //root.setTagName("project");  

014

    QDomElement root = m_xml.createElement("project"); 

015

    root.setAttribute("version", "1.0"); 

016

    root.setAttribute("name", m_projectName); 

017

    m_xml.appendChild(root); 

018

019

    for (uint i = 0; i < m_pVProject->size(); ++i) 

020

        writeTask(m_pVProject->at(i), root); 

021

022

    const int IndentSize = 4; 

023

024

    QTextStream out(device); 

025

    m_xml.save(out, IndentSize); 

026

    return true; 

027
} 

028

029

void CXProjectWriter::writeTask(STask task, QDomElement& root) 

030
{ 

031

    QDomElement taskElement = m_xml.createElement("task"); 

032

    QString taskName = fromTaskType(task.type);   

033

    taskElement.setAttribute("name", taskName); 

034

    root.appendChild(taskElement); 

035

036

    QDomElement readElement = m_xml.createElement("readonly"); 

037

    QDomText readText = m_xml.createTextNode(QString::number(task.readOnly)); 

038

    readElement.appendChild(readText); 

039

040

    QDomElement valueElement = m_xml.createElement("value"); 

041

    QDomText valueText = m_xml.createTextNode(QString::fromStdString(task.value)); 

042

    valueElement.appendChild(valueText); 

043

044

    QDomElement mistakeElement = m_xml.createElement("mistake"); 

045

    QDomText mistakeText = m_xml.createTextNode(QString::number(task.mistake)); 

046

    mistakeElement.appendChild(mistakeText); 

047

048

    QDomElement keyitemElement = m_xml.createElement("keyitem"); 

049

    QDomText keyitemText = m_xml.createTextNode(QString::number(task.keyItem)); 

050

    keyitemElement.appendChild(keyitemText); 

051

052

    QDomElement vrscopeElement = m_xml.createElement("vrscope"); 

053

    QDomText vrscopeText = m_xml.createTextNode(QString::number(task.vrScope)); 

054

    vrscopeElement.appendChild(vrscopeText); 

055

056

    taskElement.appendChild(readElement); 

057

    taskElement.appendChild(valueElement); 

058

    taskElement.appendChild(mistakeElement); 

059

    taskElement.appendChild(keyitemElement); 

060

    taskElement.appendChild(vrscopeElement); 

061
} 

062

063
QString CXProjectWriter::fromTaskType(ETASKTYPE type) 

064
{ 

065

    if(type == MARK100) 

066

        return "MARK100"; //100V��ѹ�ı궨 

067

    else if(type == MARK220) 

068

        return "MARK220"; //220V��ѹ�ı궨 

069

    else if(type == MARK380) 

070

        return "MARK380"; //380V��ѹ�ı궨 

071

    else if(type == OC100) 

072

        return "OC100";   //100V��ѹ��OC�� 

073

    else if(type == OC220) 

074

        return "OC220";   //220V��ѹ��OC�� 

075

    else if(type == OC380) 

076

        return "OC380";   //380V��ѹ��OC�� 

077

    else if(type == PRECISION100) 

078

        return "PRECISION100"; //100V��ѹ�ľ��ȼ�� 

079

    else if(type == PRECISION220) 

080

        return "PRECISION220"; //220V��ѹ�ľ��ȼ�� 

081

    else if(type == PRECISION380) 

082

        return "PRECISION380"; //380V��ѹ�ľ��ȼ�� 

083

    else if(type == CLOCKMISTAKE) 

084

        return "CLOCKMISTAKE"; //ʱ����� 

085

    else if(type == COMM) 

086

        return "COMM";         //ͨѶ��ʽ��IP-PORT,192.1.1.81-8080 

087

    else if(type == AREATERMCODE) 

088

        return "AREATERMCODE";     //�ն�������,ʮ������� 

089
//    else if(type == TERMCODE) 

090
//        return "TERMCODE";     //�ն˵�ַ 

091

    else if(type == VOLTRANKLIMIT) 

092

        return "VOLTRANKLIMIT";//��ѹ�ȼ���������,100-7-10 

093

    else if(type == APN) 

094

        return "APN";         //APN,CMNET��CMWAP 

095

    else if(type == HEARTBEAT) 

096

        return "HEARTBEAT";    //������ 

097

    else if(type == TERMTIME) 

098

        return "TERMTIME";    //�ն�ʱ�� 

099

    else if(type == FOOTDAY) 

100

        return "FOOTDAY";     //������ 

101

    else if(type == POWEROFFCLOCK) 

102

        return "POWEROFFCLOCK";//�����ʱ�Ӽ��͵�ѹ��� 

103

    else if(type == SOFTVERSION) 

104

        return "SOFTVERSION";  //�ն�����汾 

105

106

    return QString(); 

107
} 

108

109

void CXProjectWriter::writeProjectName(QString name) 

110
{ 

111

    m_projectName = name; 

112
}