classwizard.cpp Example File

dialogs/classwizard/classwizard.cpp
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#include <QtGui>

#include "classwizard.h"

ClassWizard::ClassWizard(QWidget *parent)
    : QWizard(parent)
{
    addPage(new IntroPage);
    addPage(new ClassInfoPage);
    addPage(new CodeStylePage);
    addPage(new OutputFilesPage);
    addPage(new ConclusionPage);

    setPixmap(QWizard::BannerPixmap, QPixmap(":/images/banner.png"));
    setPixmap(QWizard::BackgroundPixmap, QPixmap(":/images/background.png"));

    setWindowTitle(tr("Class Wizard"));
}

void ClassWizard::accept()
{
    QByteArray className = field("className").toByteArray();
    QByteArray baseClass = field("baseClass").toByteArray();
    QByteArray macroName = field("macroName").toByteArray();
    QByteArray baseInclude = field("baseInclude").toByteArray();

    QString outputDir = field("outputDir").toString();
    QString header = field("header").toString();
    QString implementation = field("implementation").toString();

    QByteArray block;

    if (field("comment").toBool()) {
        block += "/*\n";
        block += "    " + header.toAscii() + "\n";
        block += "*/\n";
        block += "\n";
    }
    if (field("protect").toBool()) {
        block += "#ifndef " + macroName + "\n";
        block += "#define " + macroName + "\n";
        block += "\n";
    }
    if (field("includeBase").toBool()) {
        block += "#include " + baseInclude + "\n";
        block += "\n";
    }

    block += "class " + className;
    if (!baseClass.isEmpty())
        block += " : public " + baseClass;
    block += "\n";
    block += "{\n";

    /* qmake ignore Q_OBJECT */

    if (field("qobjectMacro").toBool()) {
        block += "    Q_OBJECT\n";
        block += "\n";
    }
    block += "public:\n";

    if (field("qobjectCtor").toBool()) {
        block += "    " + className + "(QObject *parent = 0);\n";
    } else if (field("qwidgetCtor").toBool()) {
        block += "    " + className + "(QWidget *parent = 0);\n";
    } else if (field("defaultCtor").toBool()) {
        block += "    " + className + "();\n";
        if (field("copyCtor").toBool()) {
            block += "    " + className + "(const " + className + " &other);\n";
            block += "\n";
            block += "    " + className + " &operator=" + "(const " + className
                     + " &other);\n";
        }
    }
    block += "};\n";

    if (field("protect").toBool()) {
        block += "\n";
        block += "#endif\n";
    }

    QFile headerFile(outputDir + "/" + header);
    if (!headerFile.open(QFile::WriteOnly | QFile::Text)) {
        QMessageBox::warning(0, QObject::tr("Simple Wizard"),
                             QObject::tr("Cannot write file %1:\n%2")
                             .arg(headerFile.fileName())
                             .arg(headerFile.errorString()));
        return;
    }
    headerFile.write(block);

    block.clear();

    if (field("comment").toBool()) {
        block += "/*\n";
        block += "    " + implementation.toAscii() + "\n";
        block += "*/\n";
        block += "\n";
    }
    block += "#include \"" + header.toAscii() + "\"\n";
    block += "\n";

    if (field("qobjectCtor").toBool()) {
        block += className + "::" + className + "(QObject *parent)\n";
        block += "    : " + baseClass + "(parent)\n";
        block += "{\n";
        block += "}\n";
    } else if (field("qwidgetCtor").toBool()) {
        block += className + "::" + className + "(QWidget *parent)\n";
        block += "    : " + baseClass + "(parent)\n";
        block += "{\n";
        block += "}\n";
    } else if (field("defaultCtor").toBool()) {
        block += className + "::" + className + "()\n";
        block += "{\n";
        block += "    // missing code\n";
        block += "}\n";

        if (field("copyCtor").toBool()) {
            block += "\n";
            block += className + "::" + className + "(const " + className
                     + " &other)\n";
            block += "{\n";
            block += "    *this = other;\n";
            block += "}\n";
            block += "\n";
            block += className + " &" + className + "::operator=(const "
                     + className + " &other)\n";
            block += "{\n";
            if (!baseClass.isEmpty())
                block += "    " + baseClass + "::operator=(other);\n";
            block += "    // missing code\n";
            block += "    return *this;\n";
            block += "}\n";
        }
    }

    QFile implementationFile(outputDir + "/" + implementation);
    if (!implementationFile.open(QFile::WriteOnly | QFile::Text)) {
        QMessageBox::warning(0, QObject::tr("Simple Wizard"),
                             QObject::tr("Cannot write file %1:\n%2")
                             .arg(implementationFile.fileName())
                             .arg(implementationFile.errorString()));
        return;
    }
    implementationFile.write(block);

    QDialog::accept();
}

IntroPage::IntroPage(QWidget *parent)
    : QWizardPage(parent)
{
    setTitle(tr("Introduction"));
    setPixmap(QWizard::WatermarkPixmap, QPixmap(":/images/watermark1.png"));

    label = new QLabel(tr("This wizard will generate a skeleton C++ class "
                          "definition, including a few functions. You simply "
                          "need to specify the class name and set a few "
                          "options to produce a header file and an "
                          "implementation file for your new C++ class."));
    label->setWordWrap(true);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(label);
    setLayout(layout);
}

ClassInfoPage::ClassInfoPage(QWidget *parent)
    : QWizardPage(parent)
{
    setTitle(tr("Class Information"));
    setSubTitle(tr("Specify basic information about the class for which you "
                   "want to generate skeleton source code files."));
    setPixmap(QWizard::LogoPixmap, QPixmap(":/images/logo1.png"));

    classNameLabel = new QLabel(tr("&Class name:"));
    classNameLineEdit = new QLineEdit;
    classNameLabel->setBuddy(classNameLineEdit);

    baseClassLabel = new QLabel(tr("B&ase class:"));
    baseClassLineEdit = new QLineEdit;
    baseClassLabel->setBuddy(baseClassLineEdit);

    qobjectMacroCheckBox = new QCheckBox(tr("Generate Q_OBJECT &macro"));

    groupBox = new QGroupBox(tr("C&onstructor"));

    qobjectCtorRadioButton = new QRadioButton(tr("&QObject-style constructor"));
    qwidgetCtorRadioButton = new QRadioButton(tr("Q&Widget-style constructor"));
    defaultCtorRadioButton = new QRadioButton(tr("&Default constructor"));
    copyCtorCheckBox = new QCheckBox(tr("&Generate copy constructor and "
                                        "operator="));

    defaultCtorRadioButton->setChecked(true);

    connect(defaultCtorRadioButton, SIGNAL(toggled(bool)),
            copyCtorCheckBox, SLOT(setEnabled(bool)));

    registerField("className*", classNameLineEdit);
    registerField("baseClass", baseClassLineEdit);
    registerField("qobjectMacro", qobjectMacroCheckBox);
    registerField("qobjectCtor", qobjectCtorRadioButton);
    registerField("qwidgetCtor", qwidgetCtorRadioButton);
    registerField("defaultCtor", defaultCtorRadioButton);
    registerField("copyCtor", copyCtorCheckBox);

    QVBoxLayout *groupBoxLayout = new QVBoxLayout;
    groupBoxLayout->addWidget(qobjectCtorRadioButton);
    groupBoxLayout->addWidget(qwidgetCtorRadioButton);
    groupBoxLayout->addWidget(defaultCtorRadioButton);
    groupBoxLayout->addWidget(copyCtorCheckBox);
    groupBox->setLayout(groupBoxLayout);

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(classNameLabel, 0, 0);
    layout->addWidget(classNameLineEdit, 0, 1);
    layout->addWidget(baseClassLabel, 1, 0);
    layout->addWidget(baseClassLineEdit, 1, 1);
    layout->addWidget(qobjectMacroCheckBox, 2, 0, 1, 2);
    layout->addWidget(groupBox, 3, 0, 1, 2);
    setLayout(layout);
}

CodeStylePage::CodeStylePage(QWidget *parent)
    : QWizardPage(parent)
{
    setTitle(tr("Code Style Options"));
    setSubTitle(tr("Choose the formatting of the generated code."));
    setPixmap(QWizard::LogoPixmap, QPixmap(":/images/logo2.png"));

    commentCheckBox = new QCheckBox(tr("&Start generated files with a "
                                       "comment"));
    commentCheckBox->setChecked(true);

    protectCheckBox = new QCheckBox(tr("&Protect header file against multiple "
                                       "inclusions"));
    protectCheckBox->setChecked(true);

    macroNameLabel = new QLabel(tr("&Macro name:"));
    macroNameLineEdit = new QLineEdit;
    macroNameLabel->setBuddy(macroNameLineEdit);

    includeBaseCheckBox = new QCheckBox(tr("&Include base class definition"));
    baseIncludeLabel = new QLabel(tr("Base class include:"));
    baseIncludeLineEdit = new QLineEdit;
    baseIncludeLabel->setBuddy(baseIncludeLineEdit);

    connect(protectCheckBox, SIGNAL(toggled(bool)),
            macroNameLabel, SLOT(setEnabled(bool)));
    connect(protectCheckBox, SIGNAL(toggled(bool)),
            macroNameLineEdit, SLOT(setEnabled(bool)));
    connect(includeBaseCheckBox, SIGNAL(toggled(bool)),
            baseIncludeLabel, SLOT(setEnabled(bool)));
    connect(includeBaseCheckBox, SIGNAL(toggled(bool)),
            baseIncludeLineEdit, SLOT(setEnabled(bool)));

    registerField("comment", commentCheckBox);
    registerField("protect", protectCheckBox);
    registerField("macroName", macroNameLineEdit);
    registerField("includeBase", includeBaseCheckBox);
    registerField("baseInclude", baseIncludeLineEdit);

    QGridLayout *layout = new QGridLayout;
    layout->setColumnMinimumWidth(0, 20);
    layout->addWidget(commentCheckBox, 0, 0, 1, 3);
    layout->addWidget(protectCheckBox, 1, 0, 1, 3);
    layout->addWidget(macroNameLabel, 2, 1);
    layout->addWidget(macroNameLineEdit, 2, 2);
    layout->addWidget(includeBaseCheckBox, 3, 0, 1, 3);
    layout->addWidget(baseIncludeLabel, 4, 1);
    layout->addWidget(baseIncludeLineEdit, 4, 2);
    setLayout(layout);
}

void CodeStylePage::initializePage()
{
    QString className = field("className").toString();
    macroNameLineEdit->setText(className.toUpper() + "_H");

    QString baseClass = field("baseClass").toString();

    includeBaseCheckBox->setChecked(!baseClass.isEmpty());
    includeBaseCheckBox->setEnabled(!baseClass.isEmpty());
    baseIncludeLabel->setEnabled(!baseClass.isEmpty());
    baseIncludeLineEdit->setEnabled(!baseClass.isEmpty());

    if (baseClass.isEmpty()) {
        baseIncludeLineEdit->clear();
    } else if (QRegExp("Q[A-Z].*").exactMatch(baseClass)) {
        baseIncludeLineEdit->setText("<" + baseClass + ">");
    } else {
        baseIncludeLineEdit->setText("\"" + baseClass.toLower() + ".h\"");
    }
}

OutputFilesPage::OutputFilesPage(QWidget *parent)
    : QWizardPage(parent)
{
    setTitle(tr("Output Files"));
    setSubTitle(tr("Specify where you want the wizard to put the generated "
                   "skeleton code."));
    setPixmap(QWizard::LogoPixmap, QPixmap(":/images/logo3.png"));

    outputDirLabel = new QLabel(tr("&Output directory:"));
    outputDirLineEdit = new QLineEdit;
    outputDirLabel->setBuddy(outputDirLineEdit);

    headerLabel = new QLabel(tr("&Header file name:"));
    headerLineEdit = new QLineEdit;
    headerLabel->setBuddy(headerLineEdit);

    implementationLabel = new QLabel(tr("&Implementation file name:"));
    implementationLineEdit = new QLineEdit;
    implementationLabel->setBuddy(implementationLineEdit);

    registerField("outputDir*", outputDirLineEdit);
    registerField("header*", headerLineEdit);
    registerField("implementation*", implementationLineEdit);

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(outputDirLabel, 0, 0);
    layout->addWidget(outputDirLineEdit, 0, 1);
    layout->addWidget(headerLabel, 1, 0);
    layout->addWidget(headerLineEdit, 1, 1);
    layout->addWidget(implementationLabel, 2, 0);
    layout->addWidget(implementationLineEdit, 2, 1);
    setLayout(layout);
}

void OutputFilesPage::initializePage()
{
    QString className = field("className").toString();
    headerLineEdit->setText(className.toLower() + ".h");
    implementationLineEdit->setText(className.toLower() + ".cpp");
    outputDirLineEdit->setText(QDir::convertSeparators(QDir::tempPath()));
}

ConclusionPage::ConclusionPage(QWidget *parent)
    : QWizardPage(parent)
{
    setTitle(tr("Conclusion"));
    setPixmap(QWizard::WatermarkPixmap, QPixmap(":/images/watermark2.png"));

    label = new QLabel;
    label->setWordWrap(true);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(label);
    setLayout(layout);
}

void ConclusionPage::initializePage()
{
    QString finishText = wizard()->buttonText(QWizard::FinishButton);
    finishText.remove('&');
    label->setText(tr("Click %1 to generate the class skeleton.")
                   .arg(finishText));
}

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.