qt5base-lts/examples/widgets/dialogs/classwizard/classwizard.cpp
Samuel Gaist 0a96d8fb38 Example: migrate the classwizard example to use QRegularExpression
Update the classwizard example to use the new QRegularExpression class
in place of the deprecated QRegExp.

Change-Id: I125664549e249c4156f8c664fac7648f1c41f9d5
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
2017-01-24 20:28:41 +00:00

442 lines
15 KiB
C++

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#include <QtWidgets>
#include "classwizard.h"
//! [0] //! [1]
ClassWizard::ClassWizard(QWidget *parent)
: QWizard(parent)
{
addPage(new IntroPage);
addPage(new ClassInfoPage);
addPage(new CodeStylePage);
addPage(new OutputFilesPage);
addPage(new ConclusionPage);
//! [0]
setPixmap(QWizard::BannerPixmap, QPixmap(":/images/banner.png"));
setPixmap(QWizard::BackgroundPixmap, QPixmap(":/images/background.png"));
setWindowTitle(tr("Class Wizard"));
//! [2]
}
//! [1] //! [2]
//! [3]
void ClassWizard::accept()
//! [3] //! [4]
{
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();
//! [4]
QByteArray block;
if (field("comment").toBool()) {
block += "/*\n";
block += " " + header.toLatin1() + '\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.toLatin1() + '\n';
block += "*/\n";
block += '\n';
}
block += "#include \"" + header.toLatin1() + "\"\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);
//! [5]
QDialog::accept();
//! [5] //! [6]
}
//! [6]
//! [7]
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);
}
//! [7]
//! [8] //! [9]
ClassInfoPage::ClassInfoPage(QWidget *parent)
: QWizardPage(parent)
{
//! [8]
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"));
//! [10]
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"));
//! [10]
groupBox = new QGroupBox(tr("C&onstructor"));
//! [9]
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, &QAbstractButton::toggled,
copyCtorCheckBox, &QWidget::setEnabled);
//! [11] //! [12]
registerField("className*", classNameLineEdit);
registerField("baseClass", baseClassLineEdit);
registerField("qobjectMacro", qobjectMacroCheckBox);
//! [11]
registerField("qobjectCtor", qobjectCtorRadioButton);
registerField("qwidgetCtor", qwidgetCtorRadioButton);
registerField("defaultCtor", defaultCtorRadioButton);
registerField("copyCtor", copyCtorCheckBox);
QVBoxLayout *groupBoxLayout = new QVBoxLayout;
//! [12]
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);
//! [13]
}
//! [13]
//! [14]
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 "
//! [14]
"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, &QAbstractButton::toggled,
macroNameLabel, &QWidget::setEnabled);
connect(protectCheckBox, &QAbstractButton::toggled,
macroNameLineEdit, &QWidget::setEnabled);
connect(includeBaseCheckBox, &QAbstractButton::toggled,
baseIncludeLabel, &QWidget::setEnabled);
connect(includeBaseCheckBox, &QAbstractButton::toggled,
baseIncludeLineEdit, &QWidget::setEnabled);
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);
//! [15]
setLayout(layout);
}
//! [15]
//! [16]
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());
QRegularExpression rx("Q[A-Z].*");
if (baseClass.isEmpty()) {
baseIncludeLineEdit->clear();
} else if (rx.match(baseClass).hasMatch()) {
baseIncludeLineEdit->setText('<' + baseClass + '>');
} else {
baseIncludeLineEdit->setText('"' + baseClass.toLower() + ".h\"");
}
}
//! [16]
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);
}
//! [17]
void OutputFilesPage::initializePage()
{
QString className = field("className").toString();
headerLineEdit->setText(className.toLower() + ".h");
implementationLineEdit->setText(className.toLower() + ".cpp");
outputDirLineEdit->setText(QDir::toNativeSeparators(QDir::tempPath()));
}
//! [17]
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));
}