[solved] Load XML Data in Comboboxes?

itsmemax · wrote on 14 May 2013, 08:20

Hi, I need your help again. Because my English is too bad to explain it correctly, I've made a little picture out of it:
http://i.imgur.com/SFBlLfe.png
So I want the names in this XML file in my ComboBoxes (which are implemented in a for-loop in my tablewidget).. Here are my codes.

untitled3.pro
@#-------------------------------------------------

Project created by QtCreator 2013-05-13T11:00:38

#-------------------------------------------------

QT += core gui
QT += xml

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = untitled3
TEMPLATE = app

SOURCES +=
main.cpp
mainwindow.cpp
../uisConfTool/CuisList.cpp
../uisConfTool/CUisConf.cpp

HEADERS += mainwindow.h
../uisConfTool/CUisConf.h
../uisConfTool/CUisList.h

FORMS += mainwindow.ui

OTHER_FILES +=
@

main.cpp
@#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();

return a.exec&#40;&#41;;

}
@

mainwindow.cpp
@#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "../../Qt-Creator/uisConfTool/CUisList.h"

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)

{
ui->setupUi(this);

//falls Digital IO (Konstruktor)
if (ui->comboBox->currentText() == "Digital I/O")
    ui->pushButton->setVisible(false);
else
    ui->pushButton->setVisible(true);

//Versionsnummer setzen
int version = 1;
ui->label_3->setText(QString("Version %1").arg(version));


//Objekt UisList
CUisList UisList;


//Comboboxen laden
//Start


const int ROWS = 64;

QComboBox *combos[ROWS];
for (int r = 0; r < ROWS; ++r) {
    combos[r] = new QComboBox;
    ui->tableWidget->setCellWidget (r, 2, combos[r]);

}

//End

}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::on_comboBox_currentTextChanged(const QString &arg1)
{
//falls Digital IO
if (ui->comboBox->currentText() == "Digital I/O")
ui->pushButton->setVisible(false);
else
ui->pushButton->setVisible(true);

//falls Otto
if (ui->comboBox->currentText() == "Otto")
    ui->tabWidget->setVisible(false);
else
    ui->tabWidget->setVisible(true);
if (ui->comboBox->currentText() == "Otto")
    ui->tableWidget->setVisible(false);
else
    ui->tableWidget->setVisible(true);

}
@

CuisList.cpp (I think it could help, I've got it from my superior)
@#include <QFile>
#include <QPair>
#include "CUisList.h"

/**

@author censored
Constructor.<br />
Initialisation.
*/
CUisList::CUisList()
{
m_sAbsFileName = "";
m_pFile = new QFile;
m_pDoc = new QDomDocument;
}

/**

@author censored
open the xml configurationfile.
@param sFileName Name of the file
*/
int CUisList::openFile(QString sAbsFileName)
{
qDebug() << QString(" open File: %1").arg(sAbsFileName);

m_pFile->setFileName(sAbsFileName);

if (m_pFile->open(QIODevice::ReadOnly) == true){
qDebug() << QString("sucsessfull opened");
m_sAbsFileName = sAbsFileName;
m_pDoc->setContent(m_pFile);
return 0;
} else {
qDebug() << QString("Error at open");
return 1;
}
}

/**

@author censored
parse the configuration file and build the mapping table.
@return Pointer to maping array
*/
void CUisList::buildList()
{
qDebug() << QString("parse file ...");
QDomElement GroupElement;
QDomElement IoElement;

// QString m_pArray = (QString*) calloc(iMaxArraySize,sizeof(QString));

IoElement = m_pDoc->documentElement().firstChildElement("IO");
if(IoElement.isElement()) {
    qDebug() <<  QString("found IO");
    while(IoElement.isElement()) {
        m_Pair.first = IoElement.firstChildElement("VAL").text().toInt();
        m_Pair.second = IoElement.firstChildElement("NAME").text();
        qDebug() << "fouund " << m_Pair.first << " - " << m_Pair.second;
        m_DescriptionList.append(m_Pair);
        IoElement = IoElement.nextSiblingElement("IO");
    }
}

}

/**

@author censored
returns a pointer to a string idendifed by an id.
@return Pointer to the string
*/
QString CUisList::getStringById(int iId)
{
QPair <int,QString> temp;
QList <QPair<int,QString> >::iterator Iterator;
for (Iterator = m_DescriptionList.begin(); Iterator != m_DescriptionList.end(); Iterator++) {
temp = *Iterator;
if(temp.first == iId) return temp.second;
}

return NULL;
}

/**

@author censored
Close the configuration file.

*/
void CUisList::closeFile()
{
if(m_pFile) m_pFile->close();
}
@

I would really appreciate your help.

itsmemax · wrote on 14 May 2013, 08:35

I've got a bit further... I reached to write in one String the first name.. Here's my code:

@//Objekt UisList
CUisList UisList;
QString String;
UisList.openFile("R:/source/Qt-Creator/uisConfTool/digiolst.xml");
UisList.buildList();
String = UisList.getStringById(1);@

Now, how can I put this string in a Combobox (which was created in the for-loop)?

itsmemax · wrote on 14 May 2013, 09:16

Got further again.

@//Objekt UisList
CUisList UisList;
QString String;
UisList.openFile("R:/source/Qt-Creator/uisConfTool/digiolst.xml");
UisList.buildList();

//Comboboxen laden
//Start

int sListSize = UisList.listSize();
const int ROWS = sListSize;

QComboBox *combos[ROWS];
qDebug()<<String;
for (int r = 0; r < ROWS; ++r) {
    String = UisList.getStringById(r);
    combos[r] = new QComboBox;
    ui->tableWidget->setCellWidget (r, 2, combos[r]);
    combos[r]->addItem(String, r);


}

//End@

But, now it looks like this:
http://i.imgur.com/1ZJwJ1O.png

But, my superior wants it like this:
http://i.imgur.com/TQnkCGS.png

So, ALL of the names in the XML should be in ALL of the ComboBoxes... (Not used, RegH taste 1, RegH Taste 2... in ComboBox1 // Not used, RegH taste 1, RegH Taste 2... in ComboBox2 // Not used, RegH taste 1, RegH Taste 2... in ComboBox3 // ...)

Please help?

SGaist · wrote on 14 May 2013, 09:30

Hi,

@
for (int r = 0; r < ROWS; ++r) {
String = UisList.getStringById(r);
combos[r] = new QComboBox;
ui->tableWidget->setCellWidget (r, 2, combos[r]);
combos[r]->addItem(String, r); << you are only adding the item for the current row.

@

Either add a method to your UisList that returns all the strings you need and use QComboBox's addItems or have a second loop that retrieve all the strings one by one to add them.

itsmemax · wrote on 14 May 2013, 09:32

Second loop was the thing, that i've been thinking of, too. But I've got no plan how to implement it. Could you do an example?

itsmemax · wrote on 14 May 2013, 10:08

Finally... It's done:

@//Objekt UisList
CUisList UisList;
QString String;
QStringList AllStrings;
UisList.openFile("R:/source/Qt-Creator/uisConfTool/digiolst.xml");
UisList.buildList();

//Comboboxen laden
//Start

int sListSize = UisList.listSize();
const int ROWS = sListSize;

QComboBox *combos[ROWS];

for (int r = 0; r < ROWS; ++r) {
    AllStrings << UisList.getStringById(r);
}

for (int r = 0; r < ROWS; ++r) {
    String = UisList.getStringById(r);
    combos[r] = new QComboBox;
    ui->tableWidget->setCellWidget (r, 2, combos[r]);
    combos[r]->addItems(AllStrings);

}@

Thanks to SGaist anyway. ;)

SGaist · wrote on 14 May 2013, 13:11

You're welcome !

Please update the thread's title to solved :)