Setting an icon to an Item in a QlistWidget

Hello friends,

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

Code:

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

Code:

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

---

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

Hello thanks but some problems occures:

Code:

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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?

Quote:

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what is str and customerList?

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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

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

so I have some code:

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());

---

But iI get some Errors like this:

Code:

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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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Code:

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

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Ok

Code:

---

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);

---

I have always one error :

Code:

---

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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It is:

Code:

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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

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

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

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

Like this:

Code:

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

---

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??

Probably you didn't compiled the resource file or it is not correct. Can you post it?

Regards

Ok

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;
	myStringList <<"Bezirksverwaltung" << "Fakturierung";
	QIcon icon(":/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 *dock2 = new QDockWidget(tr("Produktion"), this);
    dock2->setFont(font);

---

An here are the Output from the Compiler:

Code:

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Update project (qmake Modest-Office.pro)...
Clean Project (make clean)...
mingw32-make -f Makefile.Release clean
mingw32-make[1]: Entering directory `J:/qtprojects/Modest-Office'
del release\moc_mainwindow.cpp
del release\qrc_dockwidgets.cpp
del release\main.o release\mainwindow.o release\moc_mainwindow.o release\qrc_dockwidgets.o
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
mingw32-make -f Makefile.Debug clean
mingw32-make[1]: Entering directory `J:/qtprojects/Modest-Office'
del debug\moc_mainwindow.cpp
del debug\qrc_dockwidgets.cpp
J:\qtprojects\Modest-Office\debug\moc_mainwindow.cpp konnte nicht gefunden werden
del debug\main.o debug\mainwindow.o debug\moc_mainwindow.o debug\qrc_dockwidgets.o
J:\qtprojects\Modest-Office\debug\qrc_dockwidgets.cpp konnte nicht gefunden werden
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
J:\qtprojects\Modest-Office\debug\main.o konnte nicht gefunden werden
Build (make)...
mingw32-make -f Makefile.Release
mingw32-make[1]: Entering directory `J:/qtprojects/Modest-Office'
g++ -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include" -I"." -I"c:\Qt\4.3.1\include\ActiveQt" -I"release" -I"." -I"c:\Qt\4.3.1\mkspecs\default" -o release\main.o main.cpp
g++ -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include" -I"." -I"c:\Qt\4.3.1\include\ActiveQt" -I"release" -I"." -I"c:\Qt\4.3.1\mkspecs\default" -o release\mainwindow.o mainwindow.cpp
In file included from main.cpp:5:
mainwindow.h:57:23: warning: no newline at end of file
main.cpp:23:2: warning: no newline at end of file
C:\Qt\4.3.1\bin\moc.exe -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include" -I"." -I"c:\Qt\4.3.1\include\ActiveQt" -I"release" -I"." -I"c:\Qt\4.3.1\mkspecs\default" -D__GNUC__ -DWIN32 mainwindow.h -o release\moc_mainwindow.cpp
g++ -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include" -I"." -I"c:\Qt\4.3.1\include\ActiveQt" -I"release" -I"." -I"c:\Qt\4.3.1\mkspecs\default" -o release\moc_mainwindow.o release\moc_mainwindow.cpp
In file included from mainwindow.cpp:1:
mainwindow.h:57:23: warning: no newline at end of file
c:\Qt\4.3.1\bin\rcc.exe -name dockwidgets dockwidgets.qrc -o release\qrc_dockwidgets.cpp
In file included from release\moc_mainwindow.cpp:10:
release\/../mainwindow.h:57:23: warning: no newline at end of file
g++ -c -O2 -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtCore" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include\QtGui" -I"c:\Qt\4.3.1\include" -I"." -I"c:\Qt\4.3.1\include\ActiveQt" -I"release" -I"." -I"c:\Qt\4.3.1\mkspecs\default" -o release\qrc_dockwidgets.o release\qrc_dockwidgets.cpp
g++ -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-reloc -Wl,-s -mthreads -Wl -Wl,-subsystem,windows -o "release\Modest-Office.exe" release\main.o release\mainwindow.o release\moc_mainwindow.o release\qrc_dockwidgets.o  -L"c:\Qt\4.3.1\lib" -lmingw32 -lqtmain -lQtGui4 -lQtCore4
mingw32-make[1]: Leaving directory `J:/qtprojects/Modest-Office'
---------------------- Build finished with 4 warning(s) ----------------------

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And I add a Screenshot from my App!

and this is my Resource:

Code:

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<!DOCTYPE RCC><RCC version="1.0">
<qresource>
    <file>images/new.png</file>
    <file>images/print.png</file>
    <file>images/save.png</file>
    <file>images/undo.png</file>
    <file>images/Modestsplash.png</file>
    <file>images/labelic1.ico</file>
</qresource>
</RCC>

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Add RESOURCES = yourresource.qrc to the pro file( or run qmake -project again).

Make sure you replace the qrc name with the appropriate one.

hmmmm the resources += is on top and the name is correct but nothing seems to change i don´t see my icon ????And i compile it again

Is then the relative path correct?
Judging from the path the images directory should be in the same dir with the qrc file.

Regards

My icon is in the images folder the pro file one level higher or what du you mean?

Hello i solve it!!

my icon is corrupt i take a png format and it runs. But by this way the code is written by automatic appending the icon to the item. But right now i have one icon for each item in my dockwidget. How can i put seperate icon to each item??