Qstandarditem throws error while setting a item

Hi All

I have declared a vector as follows

QVector<QVector<QStandardItem*> > previewPane;

and then I am using the following code to set it to item

QDir dir("/home/kamlesh/Gall/GALL/images");
dir.setFilter(QDir::Files);
imgfiles = dir.entryList(QStringList()<<"*.png",QDir::Files);

for(int i = 0;i<imgfiles.size();i++)
{
fileName = imgfiles.at(i);
previewPane.push_back(QVector<QStandardItem*>(file Name));
}

Code:

---

previewPane.push_back(QVector<QStandardItem*>(file Name));

---

What is that suppose to mean??

fileName contains the name of the file while looping through the directory
previewPane.push_back(QVector<QStandardItem*>(file Name)) is used to append the QVector with fileName as item

My main aim is to create a array as below
/******************************************/

image1 image2

image3 image4

image5 image6
/*******************************************/

Quote:

---

fileName contains the name of the file while looping through the directory

---

Then QVector<QStandardItem*>() should take a QStandardItem* and not a QString!

The actual code is below

/************************************************** ******/
QDir dir("/home/kamlesh/Gall/GALL/images");
dir.setFilter(QDir::Files);
imgfiles = dir.entryList(QStringList()<<"*.png",QDir::Files);

for(int i = 0;i<imgfiles.size();i++)
{
qDebug()<<" LOOP";
fileName = imgfiles.at(i);
item0 = new QStandardItem(fileName);
previewPane.push_back(QVector<QStandardItem*>(item 0));

}
/************************************************** ******/

where item0 is of QStandardItem type, but still it throws error.

Post the REAL code please, in code tags.
And what is the exact error you get?

ERROR:
../GALL/displayframe.cpp:190:1: warning: "/*" within comment
../GALL/displayframe.cpp:231:3: warning: "/*" within comment
../GALL/displayframe.cpp:246:4: warning: "/*" within comment
../GALL/displayframe.cpp:275:4: warning: "/*" within comment
../GALL/displayframe.cpp:48: warning: unused parameter ‘parent’
../GALL/displayframe.cpp: In member function ‘void FrameDisplay::setItem()’:
../GALL/displayframe.cpp:64: error: invalid conversion from ‘QStandardItem*’ to ‘int’
../GALL/displayframe.cpp:64: error: initializing argument 1 of ‘QVector<T>::QVector(int) [with T = QStandardItem*]’
make: Leaving directory `/home/kamlesh/Gall/GALL-build-desktop'
make: *** [displayframe.o] Error 1

FUNCTION AND THE LINE WHERE I GET THE ERROR
/*******************************************/
void FrameDisplay::setItem()
{
QDir dir("/home/kamlesh/Gall/GALL/images");
dir.setFilter(QDir::Files);
imgfiles = dir.entryList(QStringList()<<"*.png",QDir::Files);

for(int i = 0;i<imgfiles.size();i++)
{
qDebug()<<" LOOP";
fileName = imgfiles.at(i);
item0 = new QStandardItem(fileName);
previewPane.push_back(QVector<QStandardItem*>(item 0));

}

}
/**********************************************/

Header file

/************************************************/
#include <QAbstractTableModel>
#include <QtGui>

class FrameDisplay: public QStandardItemModel
{
Q_OBJECT
public:
FrameDisplay(QObject* parent = 0);
~FrameDisplay();
public:
int columnCount(const QModelIndex &) const;
int rowCount(const QModelIndex &) const;
Qt::ItemFlags flags(const QModelIndex &index) const;
bool hasChildren ( const QModelIndex & parent = QModelIndex() ) ;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);

void setItem();

public:
QLabel label ;
QStringList imgfiles;
QString fileName;
int row;
int col;
QStandardItem* item0;
QVector<QVector<QStandardItem*> > previewPane;

};
/************************************************** **********/

When people ask to see the real code in [code] tags it is usually for a reason. The highlighted line in the "FUNCTION AND THE LINE WHERE I GET THE ERROR" and your earlier post contains an obvious typo. As provided, the code will not compile but will generate a different message to the one you have given us.

The error message is telling you that your attempt to create a QVector<QStandardItem*> with a QStandardItem* is failing because there is no constructor matching that signature. Attempting to coerce your arguments to match one of the constructor options ultimately fails with this error.

I assume you are going to put these items into a QStandardItemModel anyway. Why not save yourself a bunch of obvious confusion about QVector<> and just put the items into the model from the start.