Setting an icon to an Item in a QlistWidget

[LordQt]

Hello friends,

How can i set an icon to an Item in my Qlistwidget my code is like this:

QDockWidget *dock = new QDockWidget(tr("Verwaltung"), this);
    QFont font("Verdana", 10, QFont::Bold);
 	dock->setFont(font);
//set the color of the dockwidget
    dock->setAutoFillBackground(true);
    QPalette qpal;
    qpal.setColor(QPalette::Active,QPalette::Window,QColor(210,239,109));
    dock->setBackgroundRole(QPalette::Window);
    dock->setPalette(qpal);
//end set color
    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
    customerList = new QListWidget(dock);
    customerList->addItems(QStringList("Bezirksverwaltung"));

QDockWidget *dock = new QDockWidget(tr("Verwaltung"), this);
    QFont font("Verdana", 10, QFont::Bold);
 	dock->setFont(font);
//set the color of the dockwidget
    dock->setAutoFillBackground(true);
    QPalette qpal;
    qpal.setColor(QPalette::Active,QPalette::Window,QColor(210,239,109));
    dock->setBackgroundRole(QPalette::Window);
    dock->setPalette(qpal);
//end set color
    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
    customerList = new QListWidget(dock);
    customerList->addItems(QStringList("Bezirksverwaltung"));

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[marcel]

If you have a QStringList you want to add to the view:

QIcon icon=...
foreach(QString str, myStringList) {
  QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
  customerList->addItem(item);
}

QIcon icon=...
foreach(QString str, myStringList) {
  QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
  customerList->addItem(item);
}

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EDIT:
Actually, you don't have to use addItem when you pass the list widget as parent in the list widget item's constructor.

regards

[LordQt]

Hello thanks but some problems occures:

customerList = new QListWidget(dock);
QIcon icon=new QIcon(":/images/labelic1.ico");
foreach(QString str, myStringList) {
QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
customerList->addItem(item);

customerList = new QListWidget(dock);
QIcon icon=new QIcon(":/images/labelic1.ico");
foreach(QString str, myStringList) {
QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
customerList->addItem(item);

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what is str and customerList?

[marcel]

what is str and customerList?

Funny you ask .
customerList is your QListWidget.
str is a QString and it represents the text you want your item to display(besides the icon).

EDIT: and myStringList is a QStringList containing the strings of the items you want to add( f.e. the names of the customers)

Regards

[LordQt]

;o)) i meant myStrList.....

so I have some code:

QDockWidget *dock = new QDockWidget(tr("Verwaltung"), this);
    QFont font("Verdana", 10, QFont::Bold);
    dock->setFont(font);
//set the color of the dockwidget
    dock->setAutoFillBackground(true);
    QPalette qpal;
    qpal.setColor(QPalette::Active,QPalette::Window,QColor(210,239,109));
    dock->setBackgroundRole(QPalette::Window);
    dock->setPalette(qpal);
//end set color
    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
    customerList = new QListWidget(dock);
    QStringList myStringList("hallo","servus");
    QIcon *icon=new QIcon(":/images/labelic1.ico");
    foreach(QString str, myStringList) {
    QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
     customerList->addItem(item);
	}
    dock->setWidget(customerList);
    addDockWidget(Qt::LeftDockWidgetArea, dock);
    viewMenu->addAction(dock->toggleViewAction());

QDockWidget *dock = new QDockWidget(tr("Verwaltung"), this);
    QFont font("Verdana", 10, QFont::Bold);
    dock->setFont(font);
//set the color of the dockwidget
    dock->setAutoFillBackground(true);
    QPalette qpal;
    qpal.setColor(QPalette::Active,QPalette::Window,QColor(210,239,109));
    dock->setBackgroundRole(QPalette::Window);
    dock->setPalette(qpal);
//end set color
    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
    customerList = new QListWidget(dock);
    QStringList myStringList("hallo","servus");
    QIcon *icon=new QIcon(":/images/labelic1.ico");
    foreach(QString str, myStringList) {
    QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
     customerList->addItem(item);
	}
    dock->setWidget(customerList);
    addDockWidget(Qt::LeftDockWidgetArea, dock);
    viewMenu->addAction(dock->toggleViewAction());

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But iI get some Errors like this:

mainwindow.cpp: In member function `void MainWindow::createDockWindows()':
mainwindow.cpp:160: error: no matching function for call to `QStringList::QStringList(const char[6], const char[7])'
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:67: note: candidates are: QStringList::QStringList(const QList<QString>&)
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:66: note:                 QStringList::QStringList(const QStringList&)
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:65: note:                 QStringList::QStringList(const QString&)
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:64: note:                 QStringList::QStringList()
mainwindow.cpp:163: error: no matching function for call to `QListWidgetItem::QListWidgetItem(QIcon*&, QString&, QListWidget*&)'
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:67: note: candidates are: QListWidgetItem::QListWidgetItem(const QListWidgetItem&)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:66: note:                 QListWidgetItem::QListWidgetItem(const QIcon&, const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:64: note:                 QListWidgetItem::QListWidgetItem(const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:63: note:                 QListWidgetItem::QListWidgetItem(QListWidget*, int)
mingw32-make[1]: *** [release\mainwindow.o] Error 1
mingw32-make: *** [release] Error 2
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
---------------------- Build finished with 4 error(s) and 3 warning(s) ----------------------

mainwindow.cpp: In member function `void MainWindow::createDockWindows()':
mainwindow.cpp:160: error: no matching function for call to `QStringList::QStringList(const char[6], const char[7])'
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:67: note: candidates are: QStringList::QStringList(const QList<QString>&)
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:66: note:                 QStringList::QStringList(const QStringList&)
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:65: note:                 QStringList::QStringList(const QString&)
c:/Qt/4.3.1/include/QtCore/../../src/corelib/tools/qstringlist.h:64: note:                 QStringList::QStringList()
mainwindow.cpp:163: error: no matching function for call to `QListWidgetItem::QListWidgetItem(QIcon*&, QString&, QListWidget*&)'
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:67: note: candidates are: QListWidgetItem::QListWidgetItem(const QListWidgetItem&)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:66: note:                 QListWidgetItem::QListWidgetItem(const QIcon&, const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:64: note:                 QListWidgetItem::QListWidgetItem(const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:63: note:                 QListWidgetItem::QListWidgetItem(QListWidget*, int)
mingw32-make[1]: *** [release\mainwindow.o] Error 1
mingw32-make: *** [release] Error 2
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
---------------------- Build finished with 4 error(s) and 3 warning(s) ----------------------

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[marcel]

QStringList myStringList;
myStringList << "item1" << "item2" << "item3"; //and so on...

QStringList myStringList;
myStringList << "item1" << "item2" << "item3"; //and so on...

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[LordQt]

Ok

QStringList myStringList;
	myStringList <<"Bezirksverwaltung" << "FAkturierung";
	QIcon *icon=new QIcon(":/images/labelic1.ico");
	foreach(QString str, myStringList) {
	QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
	customerList->addItem(item);

QStringList myStringList;
	myStringList <<"Bezirksverwaltung" << "FAkturierung";
	QIcon *icon=new QIcon(":/images/labelic1.ico");
	foreach(QString str, myStringList) {
	QListWidgetItem *item = new QListWidgetItem(icon, str, customerList);
	customerList->addItem(item);

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I have always one error :

main.cpp:23:2: warning: no newline at end of file
In file included from mainwindow.cpp:1:
mainwindow.h:57:23: warning: no newline at end of file
mainwindow.cpp: In member function `void MainWindow::createDockWindows()':
mainwindow.cpp:164: error: no matching function for call to `QListWidgetItem::QListWidgetItem(QIcon*&, QString&, QListWidget*&)'
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:67: note: candidates are: QListWidgetItem::QListWidgetItem(const QListWidgetItem&)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:66: note:                 QListWidgetItem::QListWidgetItem(const QIcon&, const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:64: note:                 QListWidgetItem::QListWidgetItem(const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:63: note:                 QListWidgetItem::QListWidgetItem(QListWidget*, int)
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
mingw32-make[1]: *** [release\mainwindow.o] Error 1
mingw32-make: *** [release] Error 2
---------------------- Build finished with 3 error(s) and 3 warning(s) ----------------------

main.cpp:23:2: warning: no newline at end of file
In file included from mainwindow.cpp:1:
mainwindow.h:57:23: warning: no newline at end of file
mainwindow.cpp: In member function `void MainWindow::createDockWindows()':
mainwindow.cpp:164: error: no matching function for call to `QListWidgetItem::QListWidgetItem(QIcon*&, QString&, QListWidget*&)'
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:67: note: candidates are: QListWidgetItem::QListWidgetItem(const QListWidgetItem&)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:66: note:                 QListWidgetItem::QListWidgetItem(const QIcon&, const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:64: note:                 QListWidgetItem::QListWidgetItem(const QString&, QListWidget*, int)
c:/Qt/4.3.1/include/QtGui/../../src/gui/itemviews/qlistwidget.h:63: note:                 QListWidgetItem::QListWidgetItem(QListWidget*, int)
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
mingw32-make[1]: *** [release\mainwindow.o] Error 1
mingw32-make: *** [release] Error 2
---------------------- Build finished with 3 error(s) and 3 warning(s) ----------------------

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[marcel]

It is:

QListWidgetItem *item = new QListWidgetItem(*icon, str, customerList);

QListWidgetItem *item = new QListWidgetItem(*icon, str, customerList);

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because you create the QIcon on the heap. It is a pointer. The constructor takes as parameter a const reference to a QIcon, not a pointer.

Regards

[LordQt]

And how can i create my QIcon in a right way??

like this Qicon *icon; icon=("......");

or like this QIcon *icon("....."); ????

[marcel]

Like this:

QIcon icon(":/images/labelic1.ico");

QIcon icon(":/images/labelic1.ico");

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[LordQt]

Ok i hope i Dónt mess up your nervs with my question but i am new to qt.
your code compiles atm without errors but i can´t see my icon have you an idea??