dialog.cpp Example File

dialogs/standarddialogs/dialog.cpp
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#include <QtWidgets> #include "dialog.h" #define MESSAGE \ Dialog::tr("<p>Message boxes have a caption, a text, " \ "and any number of buttons, each with standard or custom texts." \ "<p>Click a button to close the message box. Pressing the Esc button " \ "will activate the detected escape button (if any).") #define MESSAGE_DETAILS \ Dialog::tr("If a message box has detailed text, the user can reveal it " \ "by pressing the Show Details... button.") class DialogOptionsWidget : public QGroupBox { public: explicit DialogOptionsWidget(QWidget *parent = 0); void addCheckBox(const QString &text, int value); void addSpacer(); int value() const; private: typedef QPair<QCheckBox *, int> CheckBoxEntry; QVBoxLayout *layout; QList<CheckBoxEntry> checkBoxEntries; }; DialogOptionsWidget::DialogOptionsWidget(QWidget *parent) : QGroupBox(parent) , layout(new QVBoxLayout) { setTitle(Dialog::tr("Options")); setLayout(layout); } void DialogOptionsWidget::addCheckBox(const QString &text, int value) { QCheckBox *checkBox = new QCheckBox(text); layout->addWidget(checkBox); checkBoxEntries.append(CheckBoxEntry(checkBox, value)); } void DialogOptionsWidget::addSpacer() { layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding)); } int DialogOptionsWidget::value() const { int result = 0; foreach (const CheckBoxEntry &checkboxEntry, checkBoxEntries) if (checkboxEntry.first->isChecked()) result |= checkboxEntry.second; return result; } Dialog::Dialog(QWidget *parent) : QWidget(parent) { QVBoxLayout *verticalLayout; if (QGuiApplication::styleHints()->showIsFullScreen() || QGuiApplication::styleHints()->showIsMaximized()) { QHBoxLayout *horizontalLayout = new QHBoxLayout(this); QGroupBox *groupBox = new QGroupBox(QGuiApplication::applicationDisplayName(), this); horizontalLayout->addWidget(groupBox); verticalLayout = new QVBoxLayout(groupBox); } else { verticalLayout = new QVBoxLayout(this); } QToolBox *toolbox = new QToolBox; verticalLayout->addWidget(toolbox); errorMessageDialog = new QErrorMessage(this); int frameStyle = QFrame::Sunken | QFrame::Panel; integerLabel = new QLabel; integerLabel->setFrameStyle(frameStyle); QPushButton *integerButton = new QPushButton(tr("QInputDialog::get&Int()")); doubleLabel = new QLabel; doubleLabel->setFrameStyle(frameStyle); QPushButton *doubleButton = new QPushButton(tr("QInputDialog::get&Double()")); itemLabel = new QLabel; itemLabel->setFrameStyle(frameStyle); QPushButton *itemButton = new QPushButton(tr("QInputDialog::getIte&m()")); textLabel = new QLabel; textLabel->setFrameStyle(frameStyle); QPushButton *textButton = new QPushButton(tr("QInputDialog::get&Text()")); multiLineTextLabel = new QLabel; multiLineTextLabel->setFrameStyle(frameStyle); QPushButton *multiLineTextButton = new QPushButton(tr("QInputDialog::get&MultiLineText()")); colorLabel = new QLabel; colorLabel->setFrameStyle(frameStyle); QPushButton *colorButton = new QPushButton(tr("QColorDialog::get&Color()")); fontLabel = new QLabel; fontLabel->setFrameStyle(frameStyle); QPushButton *fontButton = new QPushButton(tr("QFontDialog::get&Font()")); directoryLabel = new QLabel; directoryLabel->setFrameStyle(frameStyle); QPushButton *directoryButton = new QPushButton(tr("QFileDialog::getE&xistingDirectory()")); openFileNameLabel = new QLabel; openFileNameLabel->setFrameStyle(frameStyle); QPushButton *openFileNameButton = new QPushButton(tr("QFileDialog::get&OpenFileName()")); openFileNamesLabel = new QLabel; openFileNamesLabel->setFrameStyle(frameStyle); QPushButton *openFileNamesButton = new QPushButton(tr("QFileDialog::&getOpenFileNames()")); saveFileNameLabel = new QLabel; saveFileNameLabel->setFrameStyle(frameStyle); QPushButton *saveFileNameButton = new QPushButton(tr("QFileDialog::get&SaveFileName()")); criticalLabel = new QLabel; criticalLabel->setFrameStyle(frameStyle); QPushButton *criticalButton = new QPushButton(tr("QMessageBox::critica&l()")); informationLabel = new QLabel; informationLabel->setFrameStyle(frameStyle); QPushButton *informationButton = new QPushButton(tr("QMessageBox::i&nformation()")); questionLabel = new QLabel; questionLabel->setFrameStyle(frameStyle); QPushButton *questionButton = new QPushButton(tr("QMessageBox::&question()")); warningLabel = new QLabel; warningLabel->setFrameStyle(frameStyle); QPushButton *warningButton = new QPushButton(tr("QMessageBox::&warning()")); errorLabel = new QLabel; errorLabel->setFrameStyle(frameStyle); QPushButton *errorButton = new QPushButton(tr("QErrorMessage::showM&essage()")); connect(integerButton, &QAbstractButton::clicked, this, &Dialog::setInteger); connect(doubleButton, &QAbstractButton::clicked, this, &Dialog::setDouble); connect(itemButton, &QAbstractButton::clicked, this, &Dialog::setItem); connect(textButton, &QAbstractButton::clicked, this, &Dialog::setText); connect(multiLineTextButton, &QAbstractButton::clicked, this, &Dialog::setMultiLineText); connect(colorButton, &QAbstractButton::clicked, this, &Dialog::setColor); connect(fontButton, &QAbstractButton::clicked, this, &Dialog::setFont); connect(directoryButton, &QAbstractButton::clicked, this, &Dialog::setExistingDirectory); connect(openFileNameButton, &QAbstractButton::clicked, this, &Dialog::setOpenFileName); connect(openFileNamesButton, &QAbstractButton::clicked, this, &Dialog::setOpenFileNames); connect(saveFileNameButton, &QAbstractButton::clicked, this, &Dialog::setSaveFileName); connect(criticalButton, &QAbstractButton::clicked, this, &Dialog::criticalMessage); connect(informationButton, &QAbstractButton::clicked, this, &Dialog::informationMessage); connect(questionButton, &QAbstractButton::clicked, this, &Dialog::questionMessage); connect(warningButton, &QAbstractButton::clicked, this, &Dialog::warningMessage); connect(errorButton, &QAbstractButton::clicked, this, &Dialog::errorMessage); QWidget *page = new QWidget; QGridLayout *layout = new QGridLayout(page); layout->setColumnStretch(1, 1); layout->setColumnMinimumWidth(1, 250); layout->addWidget(integerButton, 0, 0); layout->addWidget(integerLabel, 0, 1); layout->addWidget(doubleButton, 1, 0); layout->addWidget(doubleLabel, 1, 1); layout->addWidget(itemButton, 2, 0); layout->addWidget(itemLabel, 2, 1); layout->addWidget(textButton, 3, 0); layout->addWidget(textLabel, 3, 1); layout->addWidget(multiLineTextButton, 4, 0); layout->addWidget(multiLineTextLabel, 4, 1); layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 5, 0); toolbox->addItem(page, tr("Input Dialogs")); const QString doNotUseNativeDialog = tr("Do not use native dialog"); page = new QWidget; layout = new QGridLayout(page); layout->setColumnStretch(1, 1); layout->addWidget(colorButton, 0, 0); layout->addWidget(colorLabel, 0, 1); colorDialogOptionsWidget = new DialogOptionsWidget; colorDialogOptionsWidget->addCheckBox(doNotUseNativeDialog, QColorDialog::DontUseNativeDialog); colorDialogOptionsWidget->addCheckBox(tr("Show alpha channel") , QColorDialog::ShowAlphaChannel); colorDialogOptionsWidget->addCheckBox(tr("No buttons") , QColorDialog::NoButtons); layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 1, 0); layout->addWidget(colorDialogOptionsWidget, 2, 0, 1 ,2); toolbox->addItem(page, tr("Color Dialog")); page = new QWidget; layout = new QGridLayout(page); layout->setColumnStretch(1, 1); layout->addWidget(fontButton, 0, 0); layout->addWidget(fontLabel, 0, 1); fontDialogOptionsWidget = new DialogOptionsWidget; fontDialogOptionsWidget->addCheckBox(doNotUseNativeDialog, QFontDialog::DontUseNativeDialog); fontDialogOptionsWidget->addCheckBox(tr("Show scalable fonts"), QFontDialog::ScalableFonts); fontDialogOptionsWidget->addCheckBox(tr("Show non scalable fonts"), QFontDialog::NonScalableFonts); fontDialogOptionsWidget->addCheckBox(tr("Show monospaced fonts"), QFontDialog::MonospacedFonts); fontDialogOptionsWidget->addCheckBox(tr("Show proportional fonts"), QFontDialog::ProportionalFonts); fontDialogOptionsWidget->addCheckBox(tr("No buttons") , QFontDialog::NoButtons); layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 1, 0); layout->addWidget(fontDialogOptionsWidget, 2, 0, 1 ,2); toolbox->addItem(page, tr("Font Dialog")); page = new QWidget; layout = new QGridLayout(page); layout->setColumnStretch(1, 1); layout->addWidget(directoryButton, 0, 0); layout->addWidget(directoryLabel, 0, 1); layout->addWidget(openFileNameButton, 1, 0); layout->addWidget(openFileNameLabel, 1, 1); layout->addWidget(openFileNamesButton, 2, 0); layout->addWidget(openFileNamesLabel, 2, 1); layout->addWidget(saveFileNameButton, 3, 0); layout->addWidget(saveFileNameLabel, 3, 1); fileDialogOptionsWidget = new DialogOptionsWidget; fileDialogOptionsWidget->addCheckBox(doNotUseNativeDialog, QFileDialog::DontUseNativeDialog); fileDialogOptionsWidget->addCheckBox(tr("Show directories only"), QFileDialog::ShowDirsOnly); fileDialogOptionsWidget->addCheckBox(tr("Do not resolve symlinks"), QFileDialog::DontResolveSymlinks); fileDialogOptionsWidget->addCheckBox(tr("Do not confirm overwrite"), QFileDialog::DontConfirmOverwrite); fileDialogOptionsWidget->addCheckBox(tr("Do not use sheet"), QFileDialog::DontUseSheet); fileDialogOptionsWidget->addCheckBox(tr("Readonly"), QFileDialog::ReadOnly); fileDialogOptionsWidget->addCheckBox(tr("Hide name filter details"), QFileDialog::HideNameFilterDetails); fileDialogOptionsWidget->addCheckBox(tr("Do not use custom directory icons (Windows)"), QFileDialog::DontUseCustomDirectoryIcons); layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 4, 0); layout->addWidget(fileDialogOptionsWidget, 5, 0, 1 ,2); toolbox->addItem(page, tr("File Dialogs")); page = new QWidget; layout = new QGridLayout(page); layout->setColumnStretch(1, 1); layout->addWidget(criticalButton, 0, 0); layout->addWidget(criticalLabel, 0, 1); layout->addWidget(informationButton, 1, 0); layout->addWidget(informationLabel, 1, 1); layout->addWidget(questionButton, 2, 0); layout->addWidget(questionLabel, 2, 1); layout->addWidget(warningButton, 3, 0); layout->addWidget(warningLabel, 3, 1); layout->addWidget(errorButton, 4, 0); layout->addWidget(errorLabel, 4, 1); layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 5, 0); toolbox->addItem(page, tr("Message Boxes")); setWindowTitle(QGuiApplication::applicationDisplayName()); } void Dialog::setInteger() { bool ok; int i = QInputDialog::getInt(this, tr("QInputDialog::getInteger()"), tr("Percentage:"), 25, 0, 100, 1, &ok); if (ok) integerLabel->setText(tr("%1%").arg(i)); } void Dialog::setDouble() { bool ok; double d = QInputDialog::getDouble(this, tr("QInputDialog::getDouble()"), tr("Amount:"), 37.56, -10000, 10000, 2, &ok); if (ok) doubleLabel->setText(QString("$%1").arg(d)); } void Dialog::setItem() { QStringList items; items << tr("Spring") << tr("Summer") << tr("Fall") << tr("Winter"); bool ok; QString item = QInputDialog::getItem(this, tr("QInputDialog::getItem()"), tr("Season:"), items, 0, false, &ok); if (ok && !item.isEmpty()) itemLabel->setText(item); } void Dialog::setText() { bool ok; QString text = QInputDialog::getText(this, tr("QInputDialog::getText()"), tr("User name:"), QLineEdit::Normal, QDir::home().dirName(), &ok); if (ok && !text.isEmpty()) textLabel->setText(text); } void Dialog::setMultiLineText() { bool ok; QString text = QInputDialog::getMultiLineText(this, tr("QInputDialog::getMultiLineText()"), tr("Address:"), "John Doe\nFreedom Street", &ok); if (ok && !text.isEmpty()) multiLineTextLabel->setText(text); } void Dialog::setColor() { const QColorDialog::ColorDialogOptions options = QFlag(colorDialogOptionsWidget->value()); const QColor color = QColorDialog::getColor(Qt::green, this, "Select Color", options); if (color.isValid()) { colorLabel->setText(color.name()); colorLabel->setPalette(QPalette(color)); colorLabel->setAutoFillBackground(true); } } void Dialog::setFont() { const QFontDialog::FontDialogOptions options = QFlag(fontDialogOptionsWidget->value()); bool ok; QFont font = QFontDialog::getFont(&ok, QFont(fontLabel->text()), this, "Select Font", options); if (ok) { fontLabel->setText(font.key()); fontLabel->setFont(font); } } void Dialog::setExistingDirectory() { QFileDialog::Options options = QFlag(fileDialogOptionsWidget->value()); options |= QFileDialog::DontResolveSymlinks | QFileDialog::ShowDirsOnly; QString directory = QFileDialog::getExistingDirectory(this, tr("QFileDialog::getExistingDirectory()"), directoryLabel->text(), options); if (!directory.isEmpty()) directoryLabel->setText(directory); } void Dialog::setOpenFileName() { const QFileDialog::Options options = QFlag(fileDialogOptionsWidget->value()); QString selectedFilter; QString fileName = QFileDialog::getOpenFileName(this, tr("QFileDialog::getOpenFileName()"), openFileNameLabel->text(), tr("All Files (*);;Text Files (*.txt)"), &selectedFilter, options); if (!fileName.isEmpty()) openFileNameLabel->setText(fileName); } void Dialog::setOpenFileNames() { const QFileDialog::Options options = QFlag(fileDialogOptionsWidget->value()); QString selectedFilter; QStringList files = QFileDialog::getOpenFileNames( this, tr("QFileDialog::getOpenFileNames()"), openFilesPath, tr("All Files (*);;Text Files (*.txt)"), &selectedFilter, options); if (files.count()) { openFilesPath = files[0]; openFileNamesLabel->setText(QString("[%1]").arg(files.join(", "))); } } void Dialog::setSaveFileName() { const QFileDialog::Options options = QFlag(fileDialogOptionsWidget->value()); QString selectedFilter; QString fileName = QFileDialog::getSaveFileName(this, tr("QFileDialog::getSaveFileName()"), saveFileNameLabel->text(), tr("All Files (*);;Text Files (*.txt)"), &selectedFilter, options); if (!fileName.isEmpty()) saveFileNameLabel->setText(fileName); } void Dialog::criticalMessage() { QMessageBox::StandardButton reply; reply = QMessageBox::critical(this, tr("QMessageBox::critical()"), MESSAGE, QMessageBox::Abort | QMessageBox::Retry | QMessageBox::Ignore); if (reply == QMessageBox::Abort) criticalLabel->setText(tr("Abort")); else if (reply == QMessageBox::Retry) criticalLabel->setText(tr("Retry")); else criticalLabel->setText(tr("Ignore")); } void Dialog::informationMessage() { QMessageBox::StandardButton reply; reply = QMessageBox::information(this, tr("QMessageBox::information()"), MESSAGE); if (reply == QMessageBox::Ok) informationLabel->setText(tr("OK")); else informationLabel->setText(tr("Escape")); } void Dialog::questionMessage() { QMessageBox::StandardButton reply; reply = QMessageBox::question(this, tr("QMessageBox::question()"), MESSAGE, QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel); if (reply == QMessageBox::Yes) questionLabel->setText(tr("Yes")); else if (reply == QMessageBox::No) questionLabel->setText(tr("No")); else questionLabel->setText(tr("Cancel")); } void Dialog::warningMessage() { QMessageBox msgBox(QMessageBox::Warning, tr("QMessageBox::warning()"), MESSAGE, 0, this); msgBox.setDetailedText(MESSAGE_DETAILS); msgBox.addButton(tr("Save &Again"), QMessageBox::AcceptRole); msgBox.addButton(tr("&Continue"), QMessageBox::RejectRole); if (msgBox.exec() == QMessageBox::AcceptRole) warningLabel->setText(tr("Save Again")); else warningLabel->setText(tr("Continue")); } void Dialog::errorMessage() { errorMessageDialog->showMessage( tr("This dialog shows and remembers error messages. " "If the checkbox is checked (as it is by default), " "the shown message will be shown again, " "but if the user unchecks the box the message " "will not appear again if QErrorMessage::showMessage() " "is called with the same message.")); errorLabel->setText(tr("If the box is unchecked, the message " "won't appear again.")); }

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