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dev:notes_on_porting_to_qt4_examples [2018/02/07 16:07]
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dev:notes_on_porting_to_qt4_examples [2022/05/06 16:07] (current)
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| | ====== 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.) |
| | |
| | ------------------------------------------------------- |
| | |
| | <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> |
| | |
| |
