How to show folder with certain file name in it

SherifOmran

I want the user to see all folders but when he gets inside it, he does not see except only the abc.txt file to select it, all other files are hidden. something like in any open file in a windows program, say winword in the open window one sees *.doc but I can write abc.doc in the window and it will be filtered automatically.

lahianim

hi i used this code: (as before)
@
#include <QtGui/QApplication>
#include <QFileDialog>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QFileDialog fileDialog;
fileDialog.setViewMode(QFileDialog::Detail);
fileDialog.setFilter("csb.log");
fileDialog.exec();
return a.exec();
}
@

and is work it show me all folder and when i insert to folder if there are files he show me only the
csb.log if it exist or only folder if not
i don't have a MAC to test it so i don't know why it's not working to you

SherifOmran

This code works on MAC only with a *

@
fileDialog.setFilter("*.log");
@

but once you put a filename, all files are disabled.

SherifOmran

see this, setfilter controls only the file type
@
void QFileDialog::setFilter ( QDir::Filters filters )
Sets the filter used by the model to filters. The filter is used to specify the kind of files that should be shown.

This function was introduced in Qt 4.4.
@

SherifOmran

we are 1 step forward, i use this in the mycalss.cpp
@
QStringList files = dir.entryList(QStringList("abc.txt"),
QDir::Files | QDir::NoSymLinks);

    qDebug () << files << files.contains("abc.txt");

@
now I get in the debug when I click on browse

@
() false
("abc.txt") true
() false
@

but it ignores my if condition simply and shows me all the files ...

any idea? may be i ve a mistake in the call?

lahianim

[quote author="SherifOmran" date="1344933412"]we are 1 step forward, i use this in the mycalss.cpp

but it ignores my if condition simply and shows me all the files ...
[/quote]
which if condition?

SherifOmran

class

@

bool myclass::filterAcceptsRow ( int source_row, const QModelIndex & source_parent ) const
{

QModelIndex index = sourceModel()->index(source_row, 0/*column*/, source_parent);
     QFileSystemModel* filemodel = qobject_cast<QFileSystemModel*>(sourceModel());
    // QFileSystemModel *filemodel = static_cast<QFileSystemModel*>(sourceModel());
    filemodel->setRootPath(QDir::currentPath());
    QString fullPath =   filemodel->fileInfo(index).absoluteFilePath();
    QDir dir(fullPath);

    QStringList  files = dir.entryList(QStringList("abc.txt"),
                                 QDir::Files | QDir::NoSymLinks);

    qDebug () << files << files.contains("abc.txt");

if (files.contains("abc.txt")) return true; else false;

}

@

lahianim

so you need to change the filterAcceptsRow function to be as:
if the index represent a folder return true
else if its a file and his name == to "abc.txt" return true
else return false
in that case you will get all folder (as empty) and you'll see only the file with name "abc.txt"

@
bool myclass::filterAcceptsRow ( int source_row, const QModelIndex & source_parent ) const
{
QModelIndex index = sourceModel()->index(source_row, 0/column/, source_parent);
QFileSystemModel* filemodel = qobject_cast<QFileSystemModel*>(sourceModel());
QFileInfo indexInfo = filemodel->fileInfo(index);
if( indexInfo.isDir())
return true;
else if (indexInfo.isFile() && indexInfo.fileName() == QString("abc.txt"))
return true;
else return false;
}
@

SherifOmran

It does not work.

I use this as the calling function, is it correct?
@
QFileDialog *fileDialog = new QFileDialog;
myclass *sourceModel = new myclass;
QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
proxyModel->setSourceModel(sourceModel);
fileDialog->setProxyModel(proxyModel);
fileDialog->show();
@

SherifOmran

please see this link, it seems there is a bug
https://bugreports.qt-project.org/browse/QTBUG-7739

lahianim

the bug report refer to code like this:
@
QFileDialog fileDialog;
fileDialog.setFilter("abc.txt");
fileDialog.exec();
@

and not for the code using QSortFilterProxyModel.
about your code:
[quote author="SherifOmran" date="1344951506"]It does not work.

I use this as the calling function, is it correct?
@
QFileDialog *fileDialog = new QFileDialog;
myclass *sourceModel = new myclass;
QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(this);
proxyModel->setSourceModel(sourceModel);
fileDialog->setProxyModel(proxyModel);
fileDialog->show();
@
.
[/quote]

you use it in the wrong way instead use it as follow

@
QFileDialog *fileDialog = new QFileDialog;
//you implemented MyClass as proxy model so you need to set it in QFileDialog as proxyModel
myclass *proxyModel = new myclass;
fileDialog->setProxyModel(proxyModel);
fileDialog->show();
@

and use the filterAcceptRow as before

[quote author="lahianim" date="1344944559"]so you need to change the filterAcceptsRow function to be as:
if the index represent a folder return true
else if its a file and his name == to "abc.txt" return true
else return false
in that case you will get all folder (as empty) and you'll see only the file with name "abc.txt"

@
bool myclass::filterAcceptsRow ( int source_row, const QModelIndex & source_parent ) const
{
QModelIndex index = sourceModel()->index(source_row, 0/column/, source_parent);
QFileSystemModel* filemodel = qobject_cast<QFileSystemModel*>(sourceModel());
QFileInfo indexInfo = filemodel->fileInfo(index);
if( indexInfo.isDir())
return true;
else if (indexInfo.isFile() && indexInfo.fileName() == QString("abc.txt"))
return true;
else return false;
}
@[/quote]

SherifOmran

even this, it does not work my friend on MAC. It seems to be a bug.

SherifOmran

I made a bug report

https://bugreports.qt-project.org/browse/QTBUG-26856?page=com.atlassian.jirafisheyeplugin:fisheye-issuepanel