Getting Data from XML File and placing them in lineEdits

Ok, heres my code

Code:

---

<Item_stats>
	<General_Details>
		<Price>300</Price>
		<Name>Bottle of Wisdom</Name>
		<Description> blahblahblah blahblah</Description>
	</General_Details>
 
	<Auras>
		<HPreg>3.6</HPreg>
		<Manareg>3.6</Manareg>		
	</Auras>
</Item_stats>

---

that is my basic xml file, i tried using #include QXml and using QdomDocument ... didnt reach a thing.. although i managed to have the file in 'open' state, figured that out using if statement with a file.isOpen...

Ok, what i want to do with the data is to place them into little Labels/Line edits. for example, i want this to be visible in the gui:

Item Name: (text here)
Price: 300...
if you can give me an example on one i would manage the rest.

Thanks in advance... XD
:cool:

Quote:

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Originally Posted by zellwwf

didnt reach a thing..

---

Could you translate it to English, please? Or at least something more verbose, we've run out of crystal balls.

QXmlSimpleReader or QXmlStreamReader would be good places to start.

Hi,

Use QXmlStreamReader. Just some code snippets to get you going :

Code:

---

QFile your_text_file = open the text file first
QXmlStreamReader stream( your_text_file );
pXml = &stream;
 
    while( !pXML->atEnd() )
    {
        pXML->readNext();
 
        if( pXML->isStartElement() )        
        {
             if( pXML->name()=="Item_stats")    // found start of my data  
            {
                while( !pXML->atEnd()  )
                {
                    pXML->readNext();
 
                    if( pXML->isEndElement() )
                    {
                         if( pXML->name() == "Item_stats" )  
                             break;                       // end of my data
                    }
                    else if( pXML->isStartElement() )   // entry like 'Auras'
                    {
                        // do something with pXML->name()
                        // and with pXML->readElementText()
                        // and maybe pXML->attributes().value( "yourattribute")                    
                    }
                } 
            }
        } 
    }

---

Quote:

---

Originally Posted by marcvanriet

Hi,

Use QXmlStreamReader. Just some code snippets to get you going :

Code:

---

QFile your_text_file = open the text file first
QXmlStreamReader stream( your_text_file );
pXml = &stream;
 
    while( !pXML->atEnd() )
    {
        pXML->readNext();
 
        if( pXML->isStartElement() )        
        {
             if( pXML->name()=="Item_stats")    // found start of my data  
            {
                while( !pXML->atEnd()  )
                {
                    pXML->readNext();
 
                    if( pXML->isEndElement() )
                    {
                         if( pXML->name() == "Item_stats" )  
                             break;                       // end of my data
                    }
                    else if( pXML->isStartElement() )   // entry like 'Auras'
                    {
                        // do something with pXML->name()
                        // and with pXML->readElementText()
                        // and maybe pXML->attributes().value( "yourattribute")                    
                    }
                } 
            }
        } 
    }

---

---

Thank you... thank you :D ... i will post my results with this tomorrow morning.. i am extremely sleepy, i have been up all day working on this project (not only this part)... With extreme thanks :D

upon reading the quote, why do we need a text file? and are we just placing the data from the xml to the text file then reading it?
thanks

upon reading the quote, why do we need a text file? and are we just placing the data from the xml to the text file then reading it?
thanks

If you have the XML data in a file (free standing or in a resource) then that file is the text file. If you already have the XML data in-memory, i.e. in a QByteArray, then you can use QBuffer in place of QFile as the QIODevice for the stream reader.

thank you again... if i run into trouble again i will inform you

I have a little error that i ran into, pXml, what kind of variable is it
i get this error "pXml was not declared in this scope"
The Code is in a header just because i don't like messing around with my main cpp, i try to always to put stuff into headers... i know the code isn't complete, but i wanted to test somethings first

Code:

---

//
//#INCLUDES
#ifndef XMLSTUFF_H
#define XMLSTUFF_H
#include <qstring>
#include <QXmlStreamReader>
#include <Qfile>
#include <QMessageBox> //for debugging purposes
//END INCLUDES
 
static void readXml() {
    QMessageBox mbx;
    QFile myFile("/xml/champs/ashe_prototype.xml"); //this is the path in my resources
    myFile.open(QFile::ReadOnly);
    if (myFile.isOpen()) {
 
        //MESSAGE BOXES
        mbx.setText(" It is Open");
        mbx.exec();
 
        //STREAMERS XML
        QXmlStreamReader stream( &myFile );
 
        pXml = &stream;
 
        //WHILE LOOPS
        while (!pXml->atEnd()){
            pXml->readNext();
            mbx.setText=pXml.name();
            mbx.exec();
 
        }
 
 
    } else {
        mbx.setText(" !It is Open");
        mbx.exec();
    }
}
 
 
 
#endif // XMLSTUFF_H

---

sorry to bother you again, but why am i getting pXML is not declared in this scope

Looks like it should be QXmlStreamReader *, but I have no clue what for (you can just use stream).

Code:

---

QFile myFile("/xml/champs/ashe_prototype.xml"); //this is the path in my resources

---

If you are trying to access resource file, then it should be more like

Code:

---

QFile myFile(":/xml/champs/ashe_prototype.xml"); // with :/ at the beggining

---

Ok... sweet, i managed to read what i want from the xml.. now, the problem is assigning the data obtain to QObjects/Widgets

Code:

---

#include "lolapp.h"
#include "ui_lolapp.h"
#include "xmlstuff.h"
#include <QtXml>
 
//General Variables ***********************************************************************************
static void readXml();
bool inDetails,inSkills,inPassive,inQ,inW,inE,inR,inHealth,inMana,inEnergy,inPhys,inMag,inDef,inExtra;
//******************************************************************************************************
 
LOLApp::LOLApp(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::LOLApp)
{
    ui->setupUi(this);
 
    //initialize booleans for xml reading//
    inDetails=inSkills=inPassive=inQ=inW=inE=inR=inHealth=inMana=inEnergy=inPhys=inMag=inDef=inExtra=false;
    //***********************************
 
    readXml();
}
 
LOLApp::~LOLApp()
{
    delete ui;
}
//FUNCTION DECLARATION
static void readXml() {
    QMessageBox mbx;
    QFile myFile(":/xml/champs/ashe_prototype.xml");
    QXmlStreamReader stream( &myFile );
    myFile.open(QFile::ReadOnly);
 
    if (myFile.isOpen()) {
        //MESSAGE BOXES**********************************************
        mbx.setText(" It is Open XD");
        mbx.setStandardButtons(QMessageBox::Abort | QMessageBox::Ok);
        mbx.exec();
        //WHILE LOOPS***********************************************
        while (!stream.atEnd()){
            stream.readNext();
            if (stream.isStartElement()) {
                if (stream.name()=="Details") {
                    if (stream.name()=="Name"){
                        //should add a code to add it to the costume label Champ_Name_Label.
                        //now here, i am supposed to link the name "Akali" to Champ_Name_Label 
                        //which is located in the form (ui) of this cpp... eg; this is called lolapp.ui
                        //i tried LOLApp-> LOLApp:: LOLApp. nothing seems to work, i tried it alot... 
                        //i just need to know how to put akali, string, into Champ_Name_Label. thanks
 
                    }
                }
            }
        }
 
 
    } else {
        mbx.setText(" It is NOT Open");
        mbx.exec();
    }
}

---

---

Added after 4 minutes:

Ok... sweet, i managed to read what i want from the xml.. now, the problem is assigning the data obtain to QObjects/Widgets

Code:

---

#include "lolapp.h"
#include "ui_lolapp.h"
#include "xmlstuff.h"
#include <QtXml>
 
//General Variables ***********************************************************************************
static void readXml();
bool inDetails,inSkills,inPassive,inQ,inW,inE,inR,inHealth,inMana,inEnergy,inPhys,inMag,inDef,inExtra;
//******************************************************************************************************
 
LOLApp::LOLApp(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::LOLApp)
{
    ui->setupUi(this);
 
    //initialize booleans for xml reading//
    inDetails=inSkills=inPassive=inQ=inW=inE=inR=inHealth=inMana=inEnergy=inPhys=inMag=inDef=inExtra=false;
    //***********************************
 
    readXml();
}
 
LOLApp::~LOLApp()
{
    delete ui;
}
//FUNCTION DECLARATION
static void readXml() {
    QMessageBox mbx;
    QFile myFile(":/xml/champs/ashe_prototype.xml");
    QXmlStreamReader stream( &myFile );
    myFile.open(QFile::ReadOnly);
 
    if (myFile.isOpen()) {
        //MESSAGE BOXES**********************************************
        mbx.setText(" It is Open XD");
        mbx.setStandardButtons(QMessageBox::Abort | QMessageBox::Ok);
        mbx.exec();
        //WHILE LOOPS***********************************************
        while (!stream.atEnd()){
            stream.readNext();
            if (stream.isStartElement()) {
                if (stream.name()=="Details") {
                    if (stream.name()=="Name"){
                        //should add a code to add it to the costume label Champ_Name_Label.
                        //now here, i am supposed to link the name "Akali" to Champ_Name_Label 
                        //which is located in the form (ui) of this cpp... eg; this is called lolapp.ui
                        //i tried LOLApp-> LOLApp:: LOLApp. nothing seems to work, i tried it alot... 
                        //i just need to know how to put akali, string, into Champ_Name_Label. thanks
 
                    }
                }
            }
        }
 
 
    } else {
        mbx.setText(" It is NOT Open");
        mbx.exec();
    }
}

---

Make the "readXml" method a (non-static and not const) member of LOLApp class, then you will have access to ui form (via this->ui->something).

i removed static, and i added the following

Code:

---

this->ui->champ_name_label.setText("dkdkd");//resulted in "invalid use of this in non-member function
// when using the folloing:
ui->...// reulsted in ui was not declared in this scope

---

FULL CODE NOW:

Code:

---

#include "lolapp.h"
#include "ui_lolapp.h"
#include "xmlstuff.h"
#include <QtXml>
 
//General Variables ***********************************************************************************
void readXml();
bool inDetails,inSkills,inPassive,inQ,inW,inE,inR,inHealth,inMana,inEnergy,inPhys,inMag,inDef,inExtra;
//******************************************************************************************************
 
LOLApp::LOLApp(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::LOLApp)
{
    ui->setupUi(this);
 
    //initialize booleans for xml reading//
    inDetails=inSkills=inPassive=inQ=inW=inE=inR=inHealth=inMana=inEnergy=inPhys=inMag=inDef=inExtra=false;
    //***********************************
 
    readXml();
}
 
LOLApp::~LOLApp()
{
    delete ui;
}
//FUNCTION DECLARATION
void readXml() {
    QMessageBox mbx;
    QFile myFile(":/xml/champs/ashe_prototype.xml");
    QXmlStreamReader stream( &myFile );
    myFile.open(QFile::ReadOnly);
 
    if (myFile.isOpen()) {
        //MESSAGE BOXES**********************************************
        mbx.setText(" It is Open");
        mbx.setStandardButtons(QMessageBox::Abort | QMessageBox::Ok);
        mbx.exec();
        //WHILE LOOPS***********************************************
        while (!stream.atEnd()){
            stream.readNext();
            if (stream.isStartElement()) {
                if (stream.name()=="Details") {
                    if (stream.name()=="Name"){
                        //should add a code to add it to the costume label Champ_Name_Label.
                       ui->champ_name_label.setText("asf");
 
                    }
                }
            }
        }
 
 
    } else {
        mbx.setText(" !It is Open");
        mbx.exec();
    }
}

---

Quote:

---

i removed static, and ...

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Make this method a non-static member of a class.

i am an idiot, but how do i do that? should i create a class for it? can u provide an example:(?

Quote:

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should i create a class for it?

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You already have a class, what I mean is to add a method to it.

Quote:

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can u provide an example?

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Sure, there is a nice set of examples by Bruce Eckel, read here.