====== How to convert . qt3->qt4 . kde3->kde4 ======

This may be a help, for new contributors to the qt4/kde4 port of rosegarden. It may also serve to see, what could be replaced with "search'n replace scripts". If possible, **avoid to use the Q3Support** and includes. Use the new Qt4 classes instead. Reason: Q3Support doesn't work as well, as it one might expect and we need to move to Qt4 anyway.


===== examples =====

(if you find something new, add it on the top !)

(if you find something wrong, tell how it would be better.)

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<code>

errMsg = i18n(QString("Could not open") );
==>
errMsg = i18n(QString("Could not open").toUtf8() );
or
errMsg = i18n(QString("Could not open").toUtf8().data() );
(?)

Casting std::string to (const char*)
==>
const char * s = st.c_str()


string.lower()
==>
string.toLower()


outStream.setEncoding('UTF-8')
==>
outStream.setCodec( (char*)"UTF-8" );



QProgressBar->setProgress(9)
==>
QProgressBar->setValue(9)



if (extraAttributes)		// where extraAttributes is QString
==>
if ( ! extraAttributes.isEmpty() )




KConfig* config = KGlobal::config();
config->setGroup(GeneralOptionsConfigGroup);
v = config->readUnsignedNumEntry( .. )
==>
// default group:
KConfigGroup gconfig = KGlobal::config()->group("");
// or custom:
KConfigGroup  config = KGlobal::config()->group( GeneralOptionsConfigGrou p);
// 
// Note the dot instead of "->"
v = (unsigned int) config.readEntry( .. )



QStringList::split(',', recordStr);
==>
recordStr.split(,);


QVBox *vbox = new QVBox;
QPushButton *child1 = new QPushButton(vbox);
==>
QWidget *vbox = new QWidget;
QPushButton *child1 = new QPushButton;
//
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(child1);
vbox->setLayout(layout);


</code>