diff options
Diffstat (limited to 'examples/widgets/widgets')
84 files changed, 498 insertions, 388 deletions
diff --git a/examples/widgets/widgets/analogclock/analogclock.cpp b/examples/widgets/widgets/analogclock/analogclock.cpp index 0dc2fbc708..c7b3f66cca 100644 --- a/examples/widgets/widgets/analogclock/analogclock.cpp +++ b/examples/widgets/widgets/analogclock/analogclock.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "analogclock.h" +#include <QtWidgets> + //! [0] //! [1] AnalogClock::AnalogClock(QWidget *parent) //! [0] //! [2] @@ -61,7 +61,7 @@ AnalogClock::AnalogClock(QWidget *parent) //! [3] //! [4] QTimer *timer = new QTimer(this); //! [4] //! [5] - connect(timer, SIGNAL(timeout()), this, SLOT(update())); + connect(timer, &QTimer::timeout, this, QOverload<>::of(&AnalogClock::update)); //! [5] //! [6] timer->start(1000); //! [6] diff --git a/examples/widgets/widgets/analogclock/analogclock.h b/examples/widgets/widgets/analogclock/analogclock.h index 19e580d1ac..e2486a915f 100644 --- a/examples/widgets/widgets/analogclock/analogclock.h +++ b/examples/widgets/widgets/analogclock/analogclock.h @@ -59,7 +59,7 @@ class AnalogClock : public QWidget Q_OBJECT public: - AnalogClock(QWidget *parent = 0); + AnalogClock(QWidget *parent = nullptr); protected: void paintEvent(QPaintEvent *event) override; diff --git a/examples/widgets/widgets/calculator/button.cpp b/examples/widgets/widgets/calculator/button.cpp index 0d622b1781..a1ce0bf428 100644 --- a/examples/widgets/widgets/calculator/button.cpp +++ b/examples/widgets/widgets/calculator/button.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "button.h" +#include <QtWidgets> + //! [0] Button::Button(const QString &text, QWidget *parent) : QToolButton(parent) diff --git a/examples/widgets/widgets/calculator/button.h b/examples/widgets/widgets/calculator/button.h index 057640700f..7c6f26867f 100644 --- a/examples/widgets/widgets/calculator/button.h +++ b/examples/widgets/widgets/calculator/button.h @@ -59,7 +59,7 @@ class Button : public QToolButton Q_OBJECT public: - explicit Button(const QString &text, QWidget *parent = 0); + explicit Button(const QString &text, QWidget *parent = nullptr); QSize sizeHint() const override; }; diff --git a/examples/widgets/widgets/calculator/calculator.cpp b/examples/widgets/widgets/calculator/calculator.cpp index cbcc29b2a8..dd908cf40a 100644 --- a/examples/widgets/widgets/calculator/calculator.cpp +++ b/examples/widgets/widgets/calculator/calculator.cpp @@ -48,13 +48,13 @@ ** ****************************************************************************/ +#include "button.h" +#include "calculator.h" + #include <QtWidgets> #include <cmath> -#include "button.h" -#include "calculator.h" - //! [0] Calculator::Calculator(QWidget *parent) : QWidget(parent) diff --git a/examples/widgets/widgets/calculator/calculator.h b/examples/widgets/widgets/calculator/calculator.h index 6d7e336347..937de185e7 100644 --- a/examples/widgets/widgets/calculator/calculator.h +++ b/examples/widgets/widgets/calculator/calculator.h @@ -64,7 +64,7 @@ class Calculator : public QWidget Q_OBJECT public: - Calculator(QWidget *parent = 0); + Calculator(QWidget *parent = nullptr); private slots: void digitClicked(); diff --git a/examples/widgets/widgets/calendarwidget/window.cpp b/examples/widgets/widgets/calendarwidget/window.cpp index c3a0e1e3f7..64047aaac9 100644 --- a/examples/widgets/widgets/calendarwidget/window.cpp +++ b/examples/widgets/widgets/calendarwidget/window.cpp @@ -53,7 +53,8 @@ #include "window.h" //! [0] -Window::Window() +Window::Window(QWidget *parent) + : QWidget(parent) { createPreviewGroupBox(); createGeneralOptionsGroupBox(); @@ -220,8 +221,8 @@ void Window::createPreviewGroupBox() calendar->setMaximumDate(QDate(3000, 1, 1)); calendar->setGridVisible(true); - connect(calendar, SIGNAL(currentPageChanged(int,int)), - this, SLOT(reformatCalendarPage())); + connect(calendar, &QCalendarWidget::currentPageChanged, + this, &Window::reformatCalendarPage); previewLayout = new QGridLayout; previewLayout->addWidget(calendar, 0, 0, Qt::AlignCenter); @@ -305,20 +306,20 @@ void Window::createGeneralOptionsGroupBox() verticalHeaderLabel->setBuddy(verticalHeaderCombo); //! [11] - connect(localeCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(localeChanged(int))); - connect(firstDayCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(firstDayChanged(int))); - connect(selectionModeCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(selectionModeChanged(int))); - connect(gridCheckBox, SIGNAL(toggled(bool)), - calendar, SLOT(setGridVisible(bool))); - connect(navigationCheckBox, SIGNAL(toggled(bool)), - calendar, SLOT(setNavigationBarVisible(bool))); - connect(horizontalHeaderCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(horizontalHeaderChanged(int))); - connect(verticalHeaderCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(verticalHeaderChanged(int))); + connect(localeCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::localeChanged); + connect(firstDayCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::firstDayChanged); + connect(selectionModeCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::selectionModeChanged); + connect(gridCheckBox, &QCheckBox::toggled, + calendar, &QCalendarWidget::setGridVisible); + connect(navigationCheckBox, &QCheckBox::toggled, + calendar, &QCalendarWidget::setNavigationBarVisible); + connect(horizontalHeaderCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::horizontalHeaderChanged); + connect(verticalHeaderCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::verticalHeaderChanged); //! [11] QHBoxLayout *checkBoxLayout = new QHBoxLayout; @@ -381,14 +382,14 @@ void Window::createDatesGroupBox() maximumDateLabel->setBuddy(maximumDateEdit); //! [13] //! [14] - connect(currentDateEdit, SIGNAL(dateChanged(QDate)), - calendar, SLOT(setSelectedDate(QDate))); - connect(calendar, SIGNAL(selectionChanged()), - this, SLOT(selectedDateChanged())); - connect(minimumDateEdit, SIGNAL(dateChanged(QDate)), - this, SLOT(minimumDateChanged(QDate))); - connect(maximumDateEdit, SIGNAL(dateChanged(QDate)), - this, SLOT(maximumDateChanged(QDate))); + connect(currentDateEdit, &QDateEdit::dateChanged, + calendar, &QCalendarWidget::setSelectedDate); + connect(calendar, &QCalendarWidget::selectionChanged, + this, &Window::selectedDateChanged); + connect(minimumDateEdit, &QDateEdit::dateChanged, + this, &Window::minimumDateChanged); + connect(maximumDateEdit, &QDateEdit::dateChanged, + this, &Window::maximumDateChanged); //! [14] QGridLayout *dateBoxLayout = new QGridLayout; @@ -438,20 +439,20 @@ void Window::createTextFormatsGroupBox() mayFirstCheckBox = new QCheckBox(tr("May &1 in red")); //! [17] //! [18] - connect(weekdayColorCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(weekdayFormatChanged())); - connect(weekdayColorCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(reformatCalendarPage())); - connect(weekendColorCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(weekendFormatChanged())); - connect(weekendColorCombo, SIGNAL(currentIndexChanged(int)), - this, SLOT(reformatCalendarPage())); - connect(headerTextFormatCombo, SIGNAL(currentIndexChanged(QString)), - this, SLOT(reformatHeaders())); - connect(firstFridayCheckBox, SIGNAL(toggled(bool)), - this, SLOT(reformatCalendarPage())); - connect(mayFirstCheckBox, SIGNAL(toggled(bool)), - this, SLOT(reformatCalendarPage())); + connect(weekdayColorCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::weekdayFormatChanged); + connect(weekdayColorCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::reformatCalendarPage); + connect(weekendColorCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::weekendFormatChanged); + connect(weekendColorCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::reformatCalendarPage); + connect(headerTextFormatCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), + this, &Window::reformatHeaders); + connect(firstFridayCheckBox, &QCheckBox::toggled, + this, &Window::reformatCalendarPage); + connect(mayFirstCheckBox, &QCheckBox::toggled, + this, &Window::reformatCalendarPage); //! [18] QHBoxLayout *checkBoxLayout = new QHBoxLayout; diff --git a/examples/widgets/widgets/calendarwidget/window.h b/examples/widgets/widgets/calendarwidget/window.h index fa01fc4db6..83ea494fc2 100644 --- a/examples/widgets/widgets/calendarwidget/window.h +++ b/examples/widgets/widgets/calendarwidget/window.h @@ -70,7 +70,7 @@ class Window : public QWidget Q_OBJECT public: - Window(); + Window(QWidget *parent = nullptr); private slots: void localeChanged(int index); diff --git a/examples/widgets/widgets/charactermap/characterwidget.cpp b/examples/widgets/widgets/charactermap/characterwidget.cpp index 5bab921516..061c0164b0 100644 --- a/examples/widgets/widgets/charactermap/characterwidget.cpp +++ b/examples/widgets/widgets/charactermap/characterwidget.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "characterwidget.h" +#include <QtWidgets> + //! [0] CharacterWidget::CharacterWidget(QWidget *parent) : QWidget(parent), columns(16), lastKey(-1) diff --git a/examples/widgets/widgets/charactermap/characterwidget.h b/examples/widgets/widgets/charactermap/characterwidget.h index 53add51e6f..d12a46aa15 100644 --- a/examples/widgets/widgets/charactermap/characterwidget.h +++ b/examples/widgets/widgets/charactermap/characterwidget.h @@ -52,7 +52,6 @@ #define CHARACTERWIDGET_H #include <QFont> -#include <QPoint> #include <QSize> #include <QString> #include <QWidget> @@ -68,7 +67,7 @@ class CharacterWidget : public QWidget Q_OBJECT public: - CharacterWidget(QWidget *parent = 0); + CharacterWidget(QWidget *parent = nullptr); QSize sizeHint() const override; public slots: diff --git a/examples/widgets/widgets/charactermap/mainwindow.cpp b/examples/widgets/widgets/charactermap/mainwindow.cpp index d3ac55483c..77aad145e7 100644 --- a/examples/widgets/widgets/charactermap/mainwindow.cpp +++ b/examples/widgets/widgets/charactermap/mainwindow.cpp @@ -57,7 +57,8 @@ Q_DECLARE_METATYPE(QFontComboBox::FontFilter) -MainWindow::MainWindow() +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent) { QMenu *fileMenu = menuBar()->addMenu(tr("File")); fileMenu->addAction(tr("Quit"), this, &QWidget::close); @@ -113,9 +114,9 @@ MainWindow::MainWindow() this, &MainWindow::findSizes); connect(fontCombo, &QFontComboBox::currentFontChanged, characterWidget, &CharacterWidget::updateFont); - connect(sizeCombo, QOverload<const QString &>::of(&QComboBox::currentIndexChanged), + connect(sizeCombo, &QComboBox::currentTextChanged, characterWidget, &CharacterWidget::updateSize); - connect(styleCombo, QOverload<const QString &>::of(&QComboBox::currentIndexChanged), + connect(styleCombo, &QComboBox::currentTextChanged, characterWidget, &CharacterWidget::updateStyle); //! [4] //! [5] connect(characterWidget, &CharacterWidget::characterSelected, @@ -169,8 +170,8 @@ void MainWindow::findStyles(const QFont &font) //! [7] //! [8] - QString style; - foreach (style, fontDatabase.styles(font.family())) + const QStringList styles = fontDatabase.styles(font.family()); + for (const QString &style : styles) styleCombo->addItem(style); int styleIndex = styleCombo->findText(currentItem); @@ -187,7 +188,7 @@ void MainWindow::filterChanged(int f) const QFontComboBox::FontFilter filter = filterCombo->itemData(f).value<QFontComboBox::FontFilter>(); fontCombo->setFontFilters(filter); - statusBar()->showMessage(tr("%n font(s) found", 0, fontCombo->count())); + statusBar()->showMessage(tr("%n font(s) found", nullptr, fontCombo->count())); } void MainWindow::findSizes(const QFont &font) @@ -200,15 +201,16 @@ void MainWindow::findSizes(const QFont &font) // sizeCombo signals are now blocked until end of scope sizeCombo->clear(); - int size; if (fontDatabase.isSmoothlyScalable(font.family(), fontDatabase.styleString(font))) { - foreach (size, QFontDatabase::standardSizes()) { + const QList<int> sizes = QFontDatabase::standardSizes(); + for (const int size : sizes) { sizeCombo->addItem(QVariant(size).toString()); sizeCombo->setEditable(true); } } else { - foreach (size, fontDatabase.smoothSizes(font.family(), fontDatabase.styleString(font))) { + const QList<int> sizes = fontDatabase.smoothSizes(font.family(), fontDatabase.styleString(font)); + for (const int size : sizes ) { sizeCombo->addItem(QVariant(size).toString()); sizeCombo->setEditable(false); } diff --git a/examples/widgets/widgets/charactermap/mainwindow.h b/examples/widgets/widgets/charactermap/mainwindow.h index eac16b35fa..79fe9f9cc8 100644 --- a/examples/widgets/widgets/charactermap/mainwindow.h +++ b/examples/widgets/widgets/charactermap/mainwindow.h @@ -70,7 +70,7 @@ class MainWindow : public QMainWindow Q_OBJECT public: - MainWindow(); + MainWindow(QWidget *parent = nullptr); public slots: void filterChanged(int); diff --git a/examples/widgets/widgets/codeeditor/codeeditor.cpp b/examples/widgets/widgets/codeeditor/codeeditor.cpp index 7e56a75294..8e29860669 100644 --- a/examples/widgets/widgets/codeeditor/codeeditor.cpp +++ b/examples/widgets/widgets/codeeditor/codeeditor.cpp @@ -58,9 +58,9 @@ CodeEditor::CodeEditor(QWidget *parent) : QPlainTextEdit(parent) { lineNumberArea = new LineNumberArea(this); - connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int))); - connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int))); - connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine())); + connect(this, &CodeEditor::blockCountChanged, this, &CodeEditor::updateLineNumberAreaWidth); + connect(this, &CodeEditor::updateRequest, this, &CodeEditor::updateLineNumberArea); + connect(this, &CodeEditor::cursorPositionChanged, this, &CodeEditor::highlightCurrentLine); updateLineNumberAreaWidth(0); highlightCurrentLine(); diff --git a/examples/widgets/widgets/codeeditor/codeeditor.h b/examples/widgets/widgets/codeeditor/codeeditor.h index 65be76d81d..5a48abafc4 100644 --- a/examples/widgets/widgets/codeeditor/codeeditor.h +++ b/examples/widgets/widgets/codeeditor/codeeditor.h @@ -52,7 +52,6 @@ #define CODEEDITOR_H #include <QPlainTextEdit> -#include <QObject> QT_BEGIN_NAMESPACE class QPaintEvent; @@ -70,7 +69,7 @@ class CodeEditor : public QPlainTextEdit Q_OBJECT public: - CodeEditor(QWidget *parent = 0); + CodeEditor(QWidget *parent = nullptr); void lineNumberAreaPaintEvent(QPaintEvent *event); int lineNumberAreaWidth(); diff --git a/examples/widgets/widgets/digitalclock/digitalclock.cpp b/examples/widgets/widgets/digitalclock/digitalclock.cpp index dec7e64fc3..000334f33b 100644 --- a/examples/widgets/widgets/digitalclock/digitalclock.cpp +++ b/examples/widgets/widgets/digitalclock/digitalclock.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "digitalclock.h" +#include <QtWidgets> + //! [0] DigitalClock::DigitalClock(QWidget *parent) : QLCDNumber(parent) diff --git a/examples/widgets/widgets/digitalclock/digitalclock.h b/examples/widgets/widgets/digitalclock/digitalclock.h index 4365b965bf..31c12f39ab 100644 --- a/examples/widgets/widgets/digitalclock/digitalclock.h +++ b/examples/widgets/widgets/digitalclock/digitalclock.h @@ -59,7 +59,7 @@ class DigitalClock : public QLCDNumber Q_OBJECT public: - DigitalClock(QWidget *parent = 0); + DigitalClock(QWidget *parent = nullptr); private slots: void showTime(); diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.cpp b/examples/widgets/widgets/elidedlabel/elidedlabel.cpp index b12bf118f6..e80f7a9894 100644 --- a/examples/widgets/widgets/elidedlabel/elidedlabel.cpp +++ b/examples/widgets/widgets/elidedlabel/elidedlabel.cpp @@ -51,8 +51,8 @@ #include "elidedlabel.h" #include <QPainter> +#include <QSizePolicy> #include <QTextLayout> -#include <QDebug> //! [0] ElidedLabel::ElidedLabel(const QString &text, QWidget *parent) diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.h b/examples/widgets/widgets/elidedlabel/elidedlabel.h index 8a2a40f49a..0c8d96834e 100644 --- a/examples/widgets/widgets/elidedlabel/elidedlabel.h +++ b/examples/widgets/widgets/elidedlabel/elidedlabel.h @@ -51,11 +51,8 @@ #ifndef ELIDEDLABEL_H #define ELIDEDLABEL_H -#include <QtWidgets/QFrame> -#include <QtCore/QRect> -#include <QtGui/QResizeEvent> -#include <QtCore/QString> -#include <QtWidgets/QWidget> +#include <QFrame> +#include <QString> //! [0] class ElidedLabel : public QFrame @@ -65,7 +62,7 @@ class ElidedLabel : public QFrame Q_PROPERTY(bool isElided READ isElided) public: - explicit ElidedLabel(const QString &text, QWidget *parent = 0); + explicit ElidedLabel(const QString &text, QWidget *parent = nullptr); void setText(const QString &text); const QString & text() const { return content; } diff --git a/examples/widgets/widgets/elidedlabel/main.cpp b/examples/widgets/widgets/elidedlabel/main.cpp index f692db0efc..1c620c1d41 100644 --- a/examples/widgets/widgets/elidedlabel/main.cpp +++ b/examples/widgets/widgets/elidedlabel/main.cpp @@ -50,7 +50,7 @@ #include "testwidget.h" -#include <QtWidgets/QApplication> +#include <QApplication> //! [0] int main( int argc, char *argv[] ) diff --git a/examples/widgets/widgets/elidedlabel/testwidget.cpp b/examples/widgets/widgets/elidedlabel/testwidget.cpp index 6392a4b4fa..4e013cc5de 100644 --- a/examples/widgets/widgets/elidedlabel/testwidget.cpp +++ b/examples/widgets/widgets/elidedlabel/testwidget.cpp @@ -51,14 +51,13 @@ #include "testwidget.h" #include "elidedlabel.h" -#include <QtWidgets/QLabel> -#include <QtWidgets/QPushButton> -#include <QtWidgets/QSizePolicy> -#include <QtWidgets/QGridLayout> +#include <QGridLayout> +#include <QLabel> +#include <QPushButton> //! [0] -TestWidget::TestWidget(QWidget *parent): - QWidget(parent) +TestWidget::TestWidget(QWidget *parent) + : QWidget(parent) { const QString romeo = tr( "But soft, what light through yonder window breaks? / " @@ -116,7 +115,7 @@ TestWidget::TestWidget(QWidget *parent): //! [3] //! [4] - QGridLayout *layout = new QGridLayout(); + QGridLayout *layout = new QGridLayout; layout->addWidget(label, 0, 1, Qt::AlignCenter); layout->addWidget(switchButton, 0, 2); layout->addWidget(exitButton, 0, 3); diff --git a/examples/widgets/widgets/elidedlabel/testwidget.h b/examples/widgets/widgets/elidedlabel/testwidget.h index 840bc98b40..bcb2f33044 100644 --- a/examples/widgets/widgets/elidedlabel/testwidget.h +++ b/examples/widgets/widgets/elidedlabel/testwidget.h @@ -51,10 +51,9 @@ #ifndef TESTWIDGET_H #define TESTWIDGET_H -#include <QtWidgets/QWidget> -#include <QtCore/QStringList> -#include <QtWidgets/QSlider> -#include <QtWidgets/QComboBox> +#include <QSlider> +#include <QStringList> +#include <QWidget> class ElidedLabel; @@ -64,7 +63,7 @@ class TestWidget : public QWidget Q_OBJECT public: - TestWidget(QWidget *parent = 0); + TestWidget(QWidget *parent = nullptr); protected: void resizeEvent(QResizeEvent *event) override; diff --git a/examples/widgets/widgets/groupbox/window.h b/examples/widgets/widgets/groupbox/window.h index 566fafa151..1f041fd003 100644 --- a/examples/widgets/widgets/groupbox/window.h +++ b/examples/widgets/widgets/groupbox/window.h @@ -63,7 +63,7 @@ class Window : public QWidget Q_OBJECT public: - Window(QWidget *parent = 0); + Window(QWidget *parent = nullptr); private: QGroupBox *createFirstExclusiveGroup(); diff --git a/examples/widgets/widgets/icons/iconpreviewarea.cpp b/examples/widgets/widgets/icons/iconpreviewarea.cpp index 9cb54c47f6..1a2f514ba8 100644 --- a/examples/widgets/widgets/icons/iconpreviewarea.cpp +++ b/examples/widgets/widgets/icons/iconpreviewarea.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "iconpreviewarea.h" +#include <QtWidgets> + //! [0] IconPreviewArea::IconPreviewArea(QWidget *parent) : QWidget(parent) diff --git a/examples/widgets/widgets/icons/iconsizespinbox.cpp b/examples/widgets/widgets/icons/iconsizespinbox.cpp index 4c6a850858..e94d943993 100644 --- a/examples/widgets/widgets/icons/iconsizespinbox.cpp +++ b/examples/widgets/widgets/icons/iconsizespinbox.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "iconsizespinbox.h" +#include <QtWidgets> + //! [0] IconSizeSpinBox::IconSizeSpinBox(QWidget *parent) : QSpinBox(parent) diff --git a/examples/widgets/widgets/icons/imagedelegate.cpp b/examples/widgets/widgets/icons/imagedelegate.cpp index 3c873f1e24..786194bae7 100644 --- a/examples/widgets/widgets/icons/imagedelegate.cpp +++ b/examples/widgets/widgets/icons/imagedelegate.cpp @@ -48,11 +48,11 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "imagedelegate.h" #include "iconpreviewarea.h" +#include <QtWidgets> + //! [0] ImageDelegate::ImageDelegate(QObject *parent) : QItemDelegate(parent) diff --git a/examples/widgets/widgets/icons/mainwindow.cpp b/examples/widgets/widgets/icons/mainwindow.cpp index f704b8306f..0cf11c978d 100644 --- a/examples/widgets/widgets/icons/mainwindow.cpp +++ b/examples/widgets/widgets/icons/mainwindow.cpp @@ -60,7 +60,8 @@ enum { OtherSize = QStyle::PM_CustomBase }; //! [40] //! [0] -MainWindow::MainWindow() +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent) { QWidget *centralWidget = new QWidget(this); setCentralWidget(centralWidget); @@ -121,7 +122,8 @@ void MainWindow::changeStyle(bool checked) Q_ASSERT(style); QApplication::setStyle(style); - foreach (QAbstractButton *button, sizeButtonGroup->buttons()) { + const QList<QAbstractButton*> buttons = sizeButtonGroup->buttons(); + for (QAbstractButton *button : buttons) { const QStyle::PixelMetric metric = static_cast<QStyle::PixelMetric>(sizeButtonGroup->id(button)); const int value = style->pixelMetric(metric); switch (metric) { @@ -229,7 +231,8 @@ void MainWindow::addImages(const QString &directory) { QFileDialog fileDialog(this, tr("Open Images"), directory); QStringList mimeTypeFilters; - foreach (const QByteArray &mimeTypeName, QImageReader::supportedMimeTypes()) + const QList<QByteArray> mimeTypes = QImageReader::supportedMimeTypes(); + for (const QByteArray &mimeTypeName : mimeTypes) mimeTypeFilters.append(mimeTypeName); mimeTypeFilters.sort(); fileDialog.setMimeTypeFilters(mimeTypeFilters); @@ -245,7 +248,7 @@ void MainWindow::addImages(const QString &directory) void MainWindow::loadImages(const QStringList &fileNames) { - foreach (const QString &fileName, fileNames) { + for (const QString &fileName : fileNames) { const int row = imagesTable->rowCount(); imagesTable->setRowCount(row + 1); //! [13] @@ -468,7 +471,8 @@ void MainWindow::createActions() QMenu *viewMenu = menuBar()->addMenu(tr("&View")); styleActionGroup = new QActionGroup(this); - foreach (const QString &styleName, QStyleFactory::keys()) { + const QStringList styleKeys = QStyleFactory::keys(); + for (const QString &styleName : styleKeys) { QAction *action = new QAction(tr("%1 Style").arg(styleName), styleActionGroup); action->setData(styleName); action->setCheckable(true); @@ -507,8 +511,9 @@ void MainWindow::createContextMenu() //! [31] void MainWindow::checkCurrentStyle() { - foreach (QAction *action, styleActionGroup->actions()) { - QString styleName = action->data().toString(); + const QList<QAction *> actions = styleActionGroup->actions(); + for (QAction *action : actions) { + const QString styleName = action->data().toString(); QScopedPointer<QStyle> candidate(QStyleFactory::create(styleName)); Q_ASSERT(!candidate.isNull()); if (candidate->metaObject()->className() diff --git a/examples/widgets/widgets/icons/mainwindow.h b/examples/widgets/widgets/icons/mainwindow.h index e3888e5fb1..c67d828cab 100644 --- a/examples/widgets/widgets/icons/mainwindow.h +++ b/examples/widgets/widgets/icons/mainwindow.h @@ -60,8 +60,6 @@ QT_BEGIN_NAMESPACE class QAction; class QActionGroup; class QLabel; -class QMenu; -class QRadioButton; class QButtonGroup; class QTableWidget; QT_END_NAMESPACE @@ -74,7 +72,7 @@ class MainWindow : public QMainWindow Q_OBJECT public: - MainWindow(); + MainWindow(QWidget *parent = nullptr); void loadImages(const QStringList &fileNames); diff --git a/examples/widgets/widgets/imageviewer/imageviewer.cpp b/examples/widgets/widgets/imageviewer/imageviewer.cpp index 327abf7e43..2fc8ff63de 100644 --- a/examples/widgets/widgets/imageviewer/imageviewer.cpp +++ b/examples/widgets/widgets/imageviewer/imageviewer.cpp @@ -48,6 +48,8 @@ ** ****************************************************************************/ +#include "imageviewer.h" + #include <QtWidgets> #if defined(QT_PRINTSUPPORT_LIB) #include <QtPrintSupport/qtprintsupportglobal.h> @@ -56,13 +58,10 @@ #endif #endif -#include "imageviewer.h" - //! [0] -ImageViewer::ImageViewer() - : imageLabel(new QLabel) - , scrollArea(new QScrollArea) - , scaleFactor(1) +ImageViewer::ImageViewer(QWidget *parent) + : QMainWindow(parent), imageLabel(new QLabel), + scrollArea(new QScrollArea), scaleFactor(1) { imageLabel->setBackgroundRole(QPalette::Base); imageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); @@ -107,6 +106,8 @@ bool ImageViewer::loadFile(const QString &fileName) void ImageViewer::setImage(const QImage &newImage) { image = newImage; + if (image.colorSpace().isValid()) + image.convertToColorSpace(QColorSpace::SRgb); imageLabel->setPixmap(QPixmap::fromImage(image)); //! [4] scaleFactor = 1.0; @@ -152,7 +153,7 @@ static void initializeImageFileDialog(QFileDialog &dialog, QFileDialog::AcceptMo QStringList mimeTypeFilters; const QByteArrayList supportedMimeTypes = acceptMode == QFileDialog::AcceptOpen ? QImageReader::supportedMimeTypes() : QImageWriter::supportedMimeTypes(); - foreach (const QByteArray &mimeTypeName, supportedMimeTypes) + for (const QByteArray &mimeTypeName : supportedMimeTypes) mimeTypeFilters.append(mimeTypeName); mimeTypeFilters.sort(); dialog.setMimeTypeFilters(mimeTypeFilters); diff --git a/examples/widgets/widgets/imageviewer/imageviewer.h b/examples/widgets/widgets/imageviewer/imageviewer.h index f4a62cafe9..7e53105b33 100644 --- a/examples/widgets/widgets/imageviewer/imageviewer.h +++ b/examples/widgets/widgets/imageviewer/imageviewer.h @@ -71,7 +71,7 @@ class ImageViewer : public QMainWindow Q_OBJECT public: - ImageViewer(); + ImageViewer(QWidget *parent = nullptr); bool loadFile(const QString &); private slots: diff --git a/examples/widgets/widgets/lineedits/window.cpp b/examples/widgets/widgets/lineedits/window.cpp index ffb1edc5ce..33f09d544d 100644 --- a/examples/widgets/widgets/lineedits/window.cpp +++ b/examples/widgets/widgets/lineedits/window.cpp @@ -53,7 +53,8 @@ #include "window.h" //! [0] -Window::Window() +Window::Window(QWidget *parent) + : QWidget(parent) { QGroupBox *echoGroup = new QGroupBox(tr("Echo")); @@ -122,16 +123,16 @@ Window::Window() //! [4] //! [5] - connect(echoComboBox, SIGNAL(activated(int)), - this, SLOT(echoChanged(int))); - connect(validatorComboBox, SIGNAL(activated(int)), - this, SLOT(validatorChanged(int))); - connect(alignmentComboBox, SIGNAL(activated(int)), - this, SLOT(alignmentChanged(int))); - connect(inputMaskComboBox, SIGNAL(activated(int)), - this, SLOT(inputMaskChanged(int))); - connect(accessComboBox, SIGNAL(activated(int)), - this, SLOT(accessChanged(int))); + connect(echoComboBox, QOverload<int>::of(&QComboBox::activated), + this, &Window::echoChanged); + connect(validatorComboBox, QOverload<int>::of(&QComboBox::activated), + this, &Window::validatorChanged); + connect(alignmentComboBox, QOverload<int>::of(&QComboBox::activated), + this, &Window::alignmentChanged); + connect(inputMaskComboBox, QOverload<int>::of(&QComboBox::activated), + this, &Window::inputMaskChanged); + connect(accessComboBox, QOverload<int>::of(&QComboBox::activated), + this, &Window::accessChanged); //! [5] //! [6] @@ -205,7 +206,7 @@ void Window::validatorChanged(int index) { switch (index) { case 0: - validatorLineEdit->setValidator(0); + validatorLineEdit->setValidator(nullptr); break; case 1: validatorLineEdit->setValidator(new QIntValidator( diff --git a/examples/widgets/widgets/lineedits/window.h b/examples/widgets/widgets/lineedits/window.h index 2070b3b84c..a31634f3a3 100644 --- a/examples/widgets/widgets/lineedits/window.h +++ b/examples/widgets/widgets/lineedits/window.h @@ -54,7 +54,6 @@ #include <QWidget> QT_BEGIN_NAMESPACE -class QComboBox; class QLineEdit; QT_END_NAMESPACE @@ -64,7 +63,7 @@ class Window : public QWidget Q_OBJECT public: - Window(); + Window(QWidget *parent = nullptr); public slots: void echoChanged(int); diff --git a/examples/widgets/widgets/mousebuttons/buttontester.h b/examples/widgets/widgets/mousebuttons/buttontester.h index d99dcceb18..231733bd44 100644 --- a/examples/widgets/widgets/mousebuttons/buttontester.h +++ b/examples/widgets/widgets/mousebuttons/buttontester.h @@ -59,13 +59,14 @@ class ButtonTester : public QTextEdit { Q_OBJECT - +public: + using QTextEdit::QTextEdit; protected: void mousePressEvent(QMouseEvent *event) override; void mouseReleaseEvent(QMouseEvent *event) override; void mouseDoubleClickEvent(QMouseEvent *event) override; #if QT_CONFIG(wheelevent) - void wheelEvent(QWheelEvent * event) override; + void wheelEvent(QWheelEvent *event) override; #endif int buttonByNumber(const Qt::MouseButton button); QString enumNameFromValue(const Qt::MouseButton button); diff --git a/examples/widgets/widgets/mousebuttons/main.cpp b/examples/widgets/widgets/mousebuttons/main.cpp index 28be0ffddf..e35a442181 100644 --- a/examples/widgets/widgets/mousebuttons/main.cpp +++ b/examples/widgets/widgets/mousebuttons/main.cpp @@ -68,7 +68,7 @@ int main(int argv, char **args) testArea->setText("To test your mouse with Qt, press buttons in this area.\nYou may also scroll or tilt your mouse wheel."); QPushButton *quitButton = new QPushButton("Quit"); - QObject::connect(quitButton, SIGNAL(clicked()), qApp, SLOT(quit())); + QObject::connect(quitButton, &QPushButton::clicked, qApp, &QCoreApplication::quit); QVBoxLayout *layout = new QVBoxLayout; layout->addWidget(testArea); diff --git a/examples/widgets/widgets/movie/movieplayer.cpp b/examples/widgets/widgets/movie/movieplayer.cpp index 61e85537a3..182b258a82 100644 --- a/examples/widgets/widgets/movie/movieplayer.cpp +++ b/examples/widgets/widgets/movie/movieplayer.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "movieplayer.h" +#include <QtWidgets> + MoviePlayer::MoviePlayer(QWidget *parent) : QWidget(parent) { @@ -69,13 +69,12 @@ MoviePlayer::MoviePlayer(QWidget *parent) createControls(); createButtons(); - connect(movie, SIGNAL(frameChanged(int)), this, SLOT(updateFrameSlider())); - connect(movie, SIGNAL(stateChanged(QMovie::MovieState)), - this, SLOT(updateButtons())); - connect(fitCheckBox, SIGNAL(clicked()), this, SLOT(fitToWindow())); - connect(frameSlider, SIGNAL(valueChanged(int)), this, SLOT(goToFrame(int))); - connect(speedSpinBox, SIGNAL(valueChanged(int)), - movie, SLOT(setSpeed(int))); + connect(movie, &QMovie::frameChanged, this, &MoviePlayer::updateFrameSlider); + connect(movie, &QMovie::stateChanged, this, &MoviePlayer::updateButtons); + connect(fitCheckBox, &QCheckBox::clicked, this, &MoviePlayer::fitToWindow); + connect(frameSlider, &QSlider::valueChanged, this, &MoviePlayer::goToFrame); + connect(speedSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), + movie, &QMovie::setSpeed); mainLayout = new QVBoxLayout; mainLayout->addWidget(movieLabel); @@ -182,32 +181,32 @@ void MoviePlayer::createButtons() openButton->setIcon(style()->standardIcon(QStyle::SP_DialogOpenButton)); openButton->setIconSize(iconSize); openButton->setToolTip(tr("Open File")); - connect(openButton, SIGNAL(clicked()), this, SLOT(open())); + connect(openButton, &QToolButton::clicked, this, &MoviePlayer::open); playButton = new QToolButton; playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); playButton->setIconSize(iconSize); playButton->setToolTip(tr("Play")); - connect(playButton, SIGNAL(clicked()), movie, SLOT(start())); + connect(playButton, &QToolButton::clicked, movie, &QMovie::start); pauseButton = new QToolButton; pauseButton->setCheckable(true); pauseButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause)); pauseButton->setIconSize(iconSize); pauseButton->setToolTip(tr("Pause")); - connect(pauseButton, SIGNAL(clicked(bool)), movie, SLOT(setPaused(bool))); + connect(pauseButton, &QToolButton::clicked, movie, &QMovie::setPaused); stopButton = new QToolButton; stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop)); stopButton->setIconSize(iconSize); stopButton->setToolTip(tr("Stop")); - connect(stopButton, SIGNAL(clicked()), movie, SLOT(stop())); + connect(stopButton, &QToolButton::clicked, movie, &QMovie::stop); quitButton = new QToolButton; quitButton->setIcon(style()->standardIcon(QStyle::SP_DialogCloseButton)); quitButton->setIconSize(iconSize); quitButton->setToolTip(tr("Quit")); - connect(quitButton, SIGNAL(clicked()), this, SLOT(close())); + connect(quitButton, &QToolButton::clicked, this, &MoviePlayer::close); buttonsLayout = new QHBoxLayout; buttonsLayout->addStretch(); diff --git a/examples/widgets/widgets/movie/movieplayer.h b/examples/widgets/widgets/movie/movieplayer.h index 9fa9604025..7d143bd37c 100644 --- a/examples/widgets/widgets/movie/movieplayer.h +++ b/examples/widgets/widgets/movie/movieplayer.h @@ -70,7 +70,7 @@ class MoviePlayer : public QWidget Q_OBJECT public: - MoviePlayer(QWidget *parent = 0); + MoviePlayer(QWidget *parent = nullptr); void openFile(const QString &fileName); private slots: diff --git a/examples/widgets/widgets/scribble/mainwindow.cpp b/examples/widgets/widgets/scribble/mainwindow.cpp index d54e5ce0f9..44afa64b94 100644 --- a/examples/widgets/widgets/scribble/mainwindow.cpp +++ b/examples/widgets/widgets/scribble/mainwindow.cpp @@ -54,9 +54,9 @@ #include "scribblearea.h" //! [0] -MainWindow::MainWindow() +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent), scribbleArea(new ScribbleArea(this)) { - scribbleArea = new ScribbleArea; setCentralWidget(scribbleArea); createActions(); @@ -151,40 +151,41 @@ void MainWindow::createActions() { openAct = new QAction(tr("&Open..."), this); openAct->setShortcuts(QKeySequence::Open); - connect(openAct, SIGNAL(triggered()), this, SLOT(open())); + connect(openAct, &QAction::triggered, this, &MainWindow::open); - foreach (QByteArray format, QImageWriter::supportedImageFormats()) { - QString text = tr("%1...").arg(QString(format).toUpper()); + const QList<QByteArray> imageFormats = QImageWriter::supportedImageFormats(); + for (const QByteArray &format : imageFormats) { + QString text = tr("%1...").arg(QString::fromLatin1(format).toUpper()); QAction *action = new QAction(text, this); action->setData(format); - connect(action, SIGNAL(triggered()), this, SLOT(save())); + connect(action, &QAction::triggered, this, &MainWindow::save); saveAsActs.append(action); } printAct = new QAction(tr("&Print..."), this); - connect(printAct, SIGNAL(triggered()), scribbleArea, SLOT(print())); + connect(printAct, &QAction::triggered, scribbleArea, &ScribbleArea::print); exitAct = new QAction(tr("E&xit"), this); exitAct->setShortcuts(QKeySequence::Quit); - connect(exitAct, SIGNAL(triggered()), this, SLOT(close())); + connect(exitAct, &QAction::triggered, this, &MainWindow::close); penColorAct = new QAction(tr("&Pen Color..."), this); - connect(penColorAct, SIGNAL(triggered()), this, SLOT(penColor())); + connect(penColorAct, &QAction::triggered, this, &MainWindow::penColor); penWidthAct = new QAction(tr("Pen &Width..."), this); - connect(penWidthAct, SIGNAL(triggered()), this, SLOT(penWidth())); + connect(penWidthAct, &QAction::triggered, this, &MainWindow::penWidth); clearScreenAct = new QAction(tr("&Clear Screen"), this); clearScreenAct->setShortcut(tr("Ctrl+L")); - connect(clearScreenAct, SIGNAL(triggered()), - scribbleArea, SLOT(clearImage())); + connect(clearScreenAct, &QAction::triggered, + scribbleArea, &ScribbleArea::clearImage); aboutAct = new QAction(tr("&About"), this); - connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); + connect(aboutAct, &QAction::triggered, this, &MainWindow::about); aboutQtAct = new QAction(tr("About &Qt"), this); - connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); + connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt); } //! [14] @@ -193,7 +194,7 @@ void MainWindow::createMenus() //! [15] //! [16] { saveAsMenu = new QMenu(tr("&Save As"), this); - foreach (QAction *action, saveAsActs) + for (QAction *action : qAsConst(saveAsActs)) saveAsMenu->addAction(action); fileMenu = new QMenu(tr("&File"), this); diff --git a/examples/widgets/widgets/scribble/mainwindow.h b/examples/widgets/widgets/scribble/mainwindow.h index 9e0ddaff71..e57ff065ac 100644 --- a/examples/widgets/widgets/scribble/mainwindow.h +++ b/examples/widgets/widgets/scribble/mainwindow.h @@ -62,7 +62,7 @@ class MainWindow : public QMainWindow Q_OBJECT public: - MainWindow(); + MainWindow(QWidget *parent = nullptr); protected: void closeEvent(QCloseEvent *event) override; diff --git a/examples/widgets/widgets/scribble/scribblearea.cpp b/examples/widgets/widgets/scribble/scribblearea.cpp index d32a29697b..13e46f6e1d 100644 --- a/examples/widgets/widgets/scribble/scribblearea.cpp +++ b/examples/widgets/widgets/scribble/scribblearea.cpp @@ -48,6 +48,8 @@ ** ****************************************************************************/ +#include "scribblearea.h" + #include <QtWidgets> #if defined(QT_PRINTSUPPORT_LIB) #include <QtPrintSupport/qtprintsupportglobal.h> @@ -57,8 +59,6 @@ #endif #endif -#include "scribblearea.h" - //! [0] ScribbleArea::ScribbleArea(QWidget *parent) : QWidget(parent) diff --git a/examples/widgets/widgets/scribble/scribblearea.h b/examples/widgets/widgets/scribble/scribblearea.h index 7729fb5b89..100c45e133 100644 --- a/examples/widgets/widgets/scribble/scribblearea.h +++ b/examples/widgets/widgets/scribble/scribblearea.h @@ -62,7 +62,7 @@ class ScribbleArea : public QWidget Q_OBJECT public: - ScribbleArea(QWidget *parent = 0); + ScribbleArea(QWidget *parent = nullptr); bool openImage(const QString &fileName); bool saveImage(const QString &fileName, const char *fileFormat); diff --git a/examples/widgets/widgets/shapedclock/shapedclock.cpp b/examples/widgets/widgets/shapedclock/shapedclock.cpp index af0cd01be5..8e7d831938 100644 --- a/examples/widgets/widgets/shapedclock/shapedclock.cpp +++ b/examples/widgets/widgets/shapedclock/shapedclock.cpp @@ -57,12 +57,12 @@ ShapedClock::ShapedClock(QWidget *parent) : QWidget(parent, Qt::FramelessWindowHint | Qt::WindowSystemMenuHint) { QTimer *timer = new QTimer(this); - connect(timer, SIGNAL(timeout()), this, SLOT(update())); + connect(timer, &QTimer::timeout, this, QOverload<>::of(&ShapedClock::update)); timer->start(1000); QAction *quitAction = new QAction(tr("E&xit"), this); quitAction->setShortcut(tr("Ctrl+Q")); - connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit())); + connect(quitAction, &QAction::triggered, qApp, &QCoreApplication::quit); addAction(quitAction); setContextMenuPolicy(Qt::ActionsContextMenu); diff --git a/examples/widgets/widgets/shapedclock/shapedclock.h b/examples/widgets/widgets/shapedclock/shapedclock.h index 6468d21618..a854d956b3 100644 --- a/examples/widgets/widgets/shapedclock/shapedclock.h +++ b/examples/widgets/widgets/shapedclock/shapedclock.h @@ -59,7 +59,7 @@ class ShapedClock : public QWidget Q_OBJECT public: - ShapedClock(QWidget *parent = 0); + ShapedClock(QWidget *parent = nullptr); QSize sizeHint() const override; protected: diff --git a/examples/widgets/widgets/sliders/slidersgroup.cpp b/examples/widgets/widgets/sliders/slidersgroup.cpp index 365a003047..b4eaf9bb3d 100644 --- a/examples/widgets/widgets/sliders/slidersgroup.cpp +++ b/examples/widgets/widgets/sliders/slidersgroup.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "slidersgroup.h" +#include <QtWidgets> + //! [0] SlidersGroup::SlidersGroup(Qt::Orientation orientation, const QString &title, QWidget *parent) @@ -69,11 +69,11 @@ SlidersGroup::SlidersGroup(Qt::Orientation orientation, const QString &title, dial = new QDial; dial->setFocusPolicy(Qt::StrongFocus); - connect(slider, SIGNAL(valueChanged(int)), scrollBar, SLOT(setValue(int))); - connect(scrollBar, SIGNAL(valueChanged(int)), dial, SLOT(setValue(int))); - connect(dial, SIGNAL(valueChanged(int)), slider, SLOT(setValue(int))); + connect(slider, &QSlider::valueChanged, scrollBar, &QScrollBar::setValue); + connect(scrollBar, &QScrollBar::valueChanged, dial, &QDial::setValue); + connect(dial, &QDial::valueChanged, slider, &QSlider::setValue); //! [0] //! [1] - connect(dial, SIGNAL(valueChanged(int)), this, SIGNAL(valueChanged(int))); + connect(dial, &QDial::valueChanged, this, &SlidersGroup::valueChanged); //! [1] //! [2] //! [2] //! [3] diff --git a/examples/widgets/widgets/sliders/slidersgroup.h b/examples/widgets/widgets/sliders/slidersgroup.h index 76dcbee0d8..7be8a3b4f8 100644 --- a/examples/widgets/widgets/sliders/slidersgroup.h +++ b/examples/widgets/widgets/sliders/slidersgroup.h @@ -66,7 +66,7 @@ class SlidersGroup : public QGroupBox public: SlidersGroup(Qt::Orientation orientation, const QString &title, - QWidget *parent = 0); + QWidget *parent = nullptr); signals: void valueChanged(int value); diff --git a/examples/widgets/widgets/sliders/window.cpp b/examples/widgets/widgets/sliders/window.cpp index 16b60dde49..d73fafec10 100644 --- a/examples/widgets/widgets/sliders/window.cpp +++ b/examples/widgets/widgets/sliders/window.cpp @@ -54,7 +54,8 @@ #include "window.h" //! [0] -Window::Window() +Window::Window(QWidget *parent) + : QWidget(parent) { horizontalSliders = new SlidersGroup(Qt::Horizontal, tr("Horizontal")); verticalSliders = new SlidersGroup(Qt::Vertical, tr("Vertical")); @@ -67,13 +68,13 @@ Window::Window() //! [0] //! [1] - connect(horizontalSliders, SIGNAL(valueChanged(int)), + connect(horizontalSliders, &SlidersGroup::valueChanged, //! [1] //! [2] - verticalSliders, SLOT(setValue(int))); - connect(verticalSliders, SIGNAL(valueChanged(int)), - valueSpinBox, SLOT(setValue(int))); - connect(valueSpinBox, SIGNAL(valueChanged(int)), - horizontalSliders, SLOT(setValue(int))); + verticalSliders, &SlidersGroup::setValue); + connect(verticalSliders, &SlidersGroup::valueChanged, + valueSpinBox, &QSpinBox::setValue); + connect(valueSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), + horizontalSliders, &SlidersGroup::setValue); QHBoxLayout *layout = new QHBoxLayout; layout->addWidget(controlsGroup); @@ -120,25 +121,25 @@ void Window::createControls(const QString &title) orientationCombo->addItem(tr("Vertical slider-like widgets")); //! [6] //! [7] - connect(orientationCombo, SIGNAL(activated(int)), + connect(orientationCombo, QOverload<int>::of(&QComboBox::activated), //! [7] //! [8] - stackedWidget, SLOT(setCurrentIndex(int))); - connect(minimumSpinBox, SIGNAL(valueChanged(int)), - horizontalSliders, SLOT(setMinimum(int))); - connect(minimumSpinBox, SIGNAL(valueChanged(int)), - verticalSliders, SLOT(setMinimum(int))); - connect(maximumSpinBox, SIGNAL(valueChanged(int)), - horizontalSliders, SLOT(setMaximum(int))); - connect(maximumSpinBox, SIGNAL(valueChanged(int)), - verticalSliders, SLOT(setMaximum(int))); - connect(invertedAppearance, SIGNAL(toggled(bool)), - horizontalSliders, SLOT(invertAppearance(bool))); - connect(invertedAppearance, SIGNAL(toggled(bool)), - verticalSliders, SLOT(invertAppearance(bool))); - connect(invertedKeyBindings, SIGNAL(toggled(bool)), - horizontalSliders, SLOT(invertKeyBindings(bool))); - connect(invertedKeyBindings, SIGNAL(toggled(bool)), - verticalSliders, SLOT(invertKeyBindings(bool))); + stackedWidget, &QStackedWidget::setCurrentIndex); + connect(minimumSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), + horizontalSliders, &SlidersGroup::setMinimum); + connect(minimumSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), + verticalSliders, &SlidersGroup::setMinimum); + connect(maximumSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), + horizontalSliders, &SlidersGroup::setMaximum); + connect(maximumSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), + verticalSliders, &SlidersGroup::setMaximum); + connect(invertedAppearance, &QCheckBox::toggled, + horizontalSliders, &SlidersGroup::invertAppearance); + connect(invertedAppearance, &QCheckBox::toggled, + verticalSliders, &SlidersGroup::invertAppearance); + connect(invertedKeyBindings, &QCheckBox::toggled, + horizontalSliders, &SlidersGroup::invertKeyBindings); + connect(invertedKeyBindings, &QCheckBox::toggled, + verticalSliders, &SlidersGroup::invertKeyBindings); QGridLayout *controlsLayout = new QGridLayout; controlsLayout->addWidget(minimumLabel, 0, 0); diff --git a/examples/widgets/widgets/sliders/window.h b/examples/widgets/widgets/sliders/window.h index 9c4c14fa37..4894781ac2 100644 --- a/examples/widgets/widgets/sliders/window.h +++ b/examples/widgets/widgets/sliders/window.h @@ -69,7 +69,7 @@ class Window : public QWidget Q_OBJECT public: - Window(); + Window(QWidget *parent = nullptr); private: void createControls(const QString &title); diff --git a/examples/widgets/widgets/spinboxes/window.cpp b/examples/widgets/widgets/spinboxes/window.cpp index 54604e35aa..82e19527a7 100644 --- a/examples/widgets/widgets/spinboxes/window.cpp +++ b/examples/widgets/widgets/spinboxes/window.cpp @@ -53,7 +53,8 @@ #include "window.h" //! [0] -Window::Window() +Window::Window(QWidget *parent) + : QWidget(parent) { createSpinBoxes(); createDateTimeEdits(); @@ -175,8 +176,8 @@ void Window::createDateTimeEdits() formatComboBox->addItem("hh:mm ap"); //! [9] //! [10] - connect(formatComboBox, SIGNAL(activated(QString)), - this, SLOT(setFormatString(QString))); + connect(formatComboBox, &QComboBox::textActivated, + this, &Window::setFormatString); //! [10] setFormatString(formatComboBox->currentText()); @@ -255,9 +256,9 @@ void Window::createDoubleSpinBoxes() priceSpinBox->setPrefix("$"); priceSpinBox->setValue(99.99); - connect(precisionSpinBox, SIGNAL(valueChanged(int)), + connect(precisionSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), //! [17] - this, SLOT(changePrecision(int))); + this, &Window::changePrecision); groupSeparatorSpinBox_d = new QDoubleSpinBox; groupSeparatorSpinBox_d->setRange(-99999999, 99999999); diff --git a/examples/widgets/widgets/spinboxes/window.h b/examples/widgets/widgets/spinboxes/window.h index 97e9ac1083..138773a5aa 100644 --- a/examples/widgets/widgets/spinboxes/window.h +++ b/examples/widgets/widgets/spinboxes/window.h @@ -67,7 +67,7 @@ class Window : public QWidget Q_OBJECT public: - Window(); + Window(QWidget *parent = nullptr); public slots: void changePrecision(int decimals); diff --git a/examples/widgets/widgets/styles/norwegianwoodstyle.cpp b/examples/widgets/widgets/styles/norwegianwoodstyle.cpp index 8aca91a686..1d7ef2637b 100644 --- a/examples/widgets/widgets/styles/norwegianwoodstyle.cpp +++ b/examples/widgets/widgets/styles/norwegianwoodstyle.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "norwegianwoodstyle.h" +#include <QtWidgets> + NorwegianWoodStyle::NorwegianWoodStyle() : QProxyStyle(QStyleFactory::create("windows")) { @@ -85,8 +85,8 @@ void NorwegianWoodStyle::polish(QPalette &palette) setTexture(palette, QPalette::Mid, midImage); setTexture(palette, QPalette::Window, backgroundImage); - QBrush brush = palette.background(); - brush.setColor(brush.color().dark()); + QBrush brush = palette.window(); + brush.setColor(brush.color().darker()); palette.setBrush(QPalette::Disabled, QPalette::WindowText, brush); palette.setBrush(QPalette::Disabled, QPalette::Text, brush); @@ -185,7 +185,7 @@ void NorwegianWoodStyle::drawPrimitive(PrimitiveElement element, qstyleoption_cast<const QStyleOptionButton *>(option); if (buttonOption && (buttonOption->features & QStyleOptionButton::Flat)) { - brush = option->palette.background(); + brush = option->palette.window(); darker = (option->state & (State_Sunken | State_On)); } else { if (option->state & (State_Sunken | State_On)) { @@ -261,7 +261,7 @@ void NorwegianWoodStyle::drawPrimitive(PrimitiveElement element, painter->setPen(bottomPen); painter->drawPath(roundRect); - painter->setPen(option->palette.foreground().color()); + painter->setPen(option->palette.windowText().color()); painter->setClipping(false); painter->drawPath(roundRect); diff --git a/examples/widgets/widgets/styles/widgetgallery.cpp b/examples/widgets/widgets/styles/widgetgallery.cpp index d44547d905..34c010df74 100644 --- a/examples/widgets/widgets/styles/widgetgallery.cpp +++ b/examples/widgets/widgets/styles/widgetgallery.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - -#include "norwegianwoodstyle.h" #include "widgetgallery.h" +#include "norwegianwoodstyle.h" + +#include <QtWidgets> //! [0] WidgetGallery::WidgetGallery(QWidget *parent) @@ -79,19 +79,19 @@ WidgetGallery::WidgetGallery(QWidget *parent) //! [0] //! [1] - connect(styleComboBox, SIGNAL(activated(QString)), + connect(styleComboBox, &QComboBox::textActivated, //! [1] //! [2] - this, SLOT(changeStyle(QString))); - connect(useStylePaletteCheckBox, SIGNAL(toggled(bool)), - this, SLOT(changePalette())); - connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)), - topLeftGroupBox, SLOT(setDisabled(bool))); - connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)), - topRightGroupBox, SLOT(setDisabled(bool))); - connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)), - bottomLeftTabWidget, SLOT(setDisabled(bool))); - connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)), - bottomRightGroupBox, SLOT(setDisabled(bool))); + this, &WidgetGallery::changeStyle); + connect(useStylePaletteCheckBox, &QCheckBox::toggled, + this, &WidgetGallery::changePalette); + connect(disableWidgetsCheckBox, &QCheckBox::toggled, + topLeftGroupBox, &QGroupBox::setDisabled); + connect(disableWidgetsCheckBox, &QCheckBox::toggled, + topRightGroupBox, &QGroupBox::setDisabled); + connect(disableWidgetsCheckBox, &QCheckBox::toggled, + bottomLeftTabWidget, &QGroupBox::setDisabled); + connect(disableWidgetsCheckBox, &QCheckBox::toggled, + bottomRightGroupBox, &QGroupBox::setDisabled); //! [2] //! [3] @@ -212,7 +212,7 @@ void WidgetGallery::createBottomLeftTabWidget() tableWidget = new QTableWidget(10, 10); QHBoxLayout *tab1hbox = new QHBoxLayout; - tab1hbox->setMargin(5); + tab1hbox->setContentsMargins(5,5, 5, 5); tab1hbox->addWidget(tableWidget); tab1->setLayout(tab1hbox); @@ -227,7 +227,7 @@ void WidgetGallery::createBottomLeftTabWidget() "How I wonder what you are!\n")); QHBoxLayout *tab2hbox = new QHBoxLayout; - tab2hbox->setMargin(5); + tab2hbox->setContentsMargins(5, 5, 5, 5); tab2hbox->addWidget(textEdit); tab2->setLayout(tab2hbox); @@ -279,7 +279,7 @@ void WidgetGallery::createProgressBar() progressBar->setValue(0); QTimer *timer = new QTimer(this); - connect(timer, SIGNAL(timeout()), this, SLOT(advanceProgressBar())); + connect(timer, &QTimer::timeout, this, &WidgetGallery::advanceProgressBar); timer->start(1000); } //! [13] diff --git a/examples/widgets/widgets/styles/widgetgallery.h b/examples/widgets/widgets/styles/widgetgallery.h index ec6edff536..9ee65c21c4 100644 --- a/examples/widgets/widgets/styles/widgetgallery.h +++ b/examples/widgets/widgets/styles/widgetgallery.h @@ -78,7 +78,7 @@ class WidgetGallery : public QDialog Q_OBJECT public: - WidgetGallery(QWidget *parent = 0); + WidgetGallery(QWidget *parent = nullptr); private slots: void changeStyle(const QString &styleName); diff --git a/examples/widgets/widgets/stylesheet/mainwindow.cpp b/examples/widgets/widgets/stylesheet/mainwindow.cpp index 9acd90658a..f187c007dd 100644 --- a/examples/widgets/widgets/stylesheet/mainwindow.cpp +++ b/examples/widgets/widgets/stylesheet/mainwindow.cpp @@ -53,7 +53,8 @@ #include "mainwindow.h" #include "stylesheeteditor.h" -MainWindow::MainWindow() +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent) { ui.setupUi(this); @@ -63,8 +64,8 @@ MainWindow::MainWindow() statusBar()->addWidget(new QLabel(tr("Ready"))); - connect(ui.exitAction, SIGNAL(triggered()), qApp, SLOT(quit())); - connect(ui.aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt())); + connect(ui.exitAction, &QAction::triggered, qApp, &QApplication::quit); + connect(ui.aboutQtAction, &QAction::triggered, qApp, &QApplication::aboutQt); } void MainWindow::on_editStyleAction_triggered() diff --git a/examples/widgets/widgets/stylesheet/mainwindow.h b/examples/widgets/widgets/stylesheet/mainwindow.h index 46d3ecbb93..8af4c01da0 100644 --- a/examples/widgets/widgets/stylesheet/mainwindow.h +++ b/examples/widgets/widgets/stylesheet/mainwindow.h @@ -62,7 +62,7 @@ class MainWindow : public QMainWindow Q_OBJECT public: - MainWindow(); + MainWindow(QWidget *parent = nullptr); private slots: void on_editStyleAction_triggered(); diff --git a/examples/widgets/widgets/stylesheet/stylesheeteditor.cpp b/examples/widgets/widgets/stylesheet/stylesheeteditor.cpp index 3247fa774d..0874cc3554 100644 --- a/examples/widgets/widgets/stylesheet/stylesheeteditor.cpp +++ b/examples/widgets/widgets/stylesheet/stylesheeteditor.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "stylesheeteditor.h" +#include <QtWidgets> + StyleSheetEditor::StyleSheetEditor(QWidget *parent) : QDialog(parent) { diff --git a/examples/widgets/widgets/stylesheet/stylesheeteditor.h b/examples/widgets/widgets/stylesheet/stylesheeteditor.h index 65a3018adb..f51af7877c 100644 --- a/examples/widgets/widgets/stylesheet/stylesheeteditor.h +++ b/examples/widgets/widgets/stylesheet/stylesheeteditor.h @@ -60,7 +60,7 @@ class StyleSheetEditor : public QDialog Q_OBJECT public: - StyleSheetEditor(QWidget *parent = 0); + StyleSheetEditor(QWidget *parent = nullptr); private slots: void on_styleCombo_activated(const QString &styleName); diff --git a/examples/widgets/widgets/tablet/tabletapplication.cpp b/examples/widgets/widgets/tablet/tabletapplication.cpp index 2e5ac07c95..37be018276 100644 --- a/examples/widgets/widgets/tablet/tabletapplication.cpp +++ b/examples/widgets/widgets/tablet/tabletapplication.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "tabletapplication.h" +#include <QtWidgets> + //! [0] bool TabletApplication::event(QEvent *event) { diff --git a/examples/widgets/widgets/tablet/tabletapplication.h b/examples/widgets/widgets/tablet/tabletapplication.h index 6b3b2a1730..9b4a4f1886 100644 --- a/examples/widgets/widgets/tablet/tabletapplication.h +++ b/examples/widgets/widgets/tablet/tabletapplication.h @@ -61,15 +61,14 @@ class TabletApplication : public QApplication Q_OBJECT public: - TabletApplication(int &argv, char **args) - : QApplication(argv, args) {} + using QApplication::QApplication; bool event(QEvent *event) override; void setCanvas(TabletCanvas *canvas) { m_canvas = canvas; } private: - TabletCanvas *m_canvas; + TabletCanvas *m_canvas = nullptr; }; //! [0] diff --git a/examples/widgets/widgets/tablet/tabletcanvas.cpp b/examples/widgets/widgets/tablet/tabletcanvas.cpp index bfcc84e182..dc56702142 100644 --- a/examples/widgets/widgets/tablet/tabletcanvas.cpp +++ b/examples/widgets/widgets/tablet/tabletcanvas.cpp @@ -224,7 +224,7 @@ void TabletCanvas::paintPixmap(QPainter &painter, QTabletEvent *event) qWarning() << error; #endif } - // FALL-THROUGH + Q_FALLTHROUGH(); case QTabletEvent::Stylus: painter.setPen(m_pen); painter.drawLine(lastPoint.pos, event->posF()); diff --git a/examples/widgets/widgets/tetrix/main.cpp b/examples/widgets/widgets/tetrix/main.cpp index 2698190e76..92f245ca14 100644 --- a/examples/widgets/widgets/tetrix/main.cpp +++ b/examples/widgets/widgets/tetrix/main.cpp @@ -48,12 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - -#include <stdlib.h> - #include "tetrixwindow.h" +#include <QApplication> + int main(int argc, char *argv[]) { QApplication app(argc, argv); diff --git a/examples/widgets/widgets/tetrix/tetrixboard.cpp b/examples/widgets/widgets/tetrix/tetrixboard.cpp index 222ab1fb4d..ef3ac4fc38 100644 --- a/examples/widgets/widgets/tetrix/tetrixboard.cpp +++ b/examples/widgets/widgets/tetrix/tetrixboard.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "tetrixboard.h" +#include <QtWidgets> + //! [0] TetrixBoard::TetrixBoard(QWidget *parent) : QFrame(parent) @@ -358,7 +358,7 @@ void TetrixBoard::showNextPiece() QPixmap pixmap(dx * squareWidth(), dy * squareHeight()); QPainter painter(&pixmap); - painter.fillRect(pixmap.rect(), nextPieceLabel->palette().background()); + painter.fillRect(pixmap.rect(), nextPieceLabel->palette().window()); for (int i = 0; i < 4; ++i) { int x = nextPiece.x(i) - nextPiece.minX(); @@ -405,11 +405,11 @@ void TetrixBoard::drawSquare(QPainter &painter, int x, int y, TetrixShape shape) painter.fillRect(x + 1, y + 1, squareWidth() - 2, squareHeight() - 2, color); - painter.setPen(color.light()); + painter.setPen(color.lighter()); painter.drawLine(x, y + squareHeight() - 1, x, y); painter.drawLine(x, y, x + squareWidth() - 1, y); - painter.setPen(color.dark()); + painter.setPen(color.darker()); painter.drawLine(x + 1, y + squareHeight() - 1, x + squareWidth() - 1, y + squareHeight() - 1); painter.drawLine(x + squareWidth() - 1, y + squareHeight() - 1, diff --git a/examples/widgets/widgets/tetrix/tetrixboard.h b/examples/widgets/widgets/tetrix/tetrixboard.h index 7c6871dfbd..86bcfa4d6e 100644 --- a/examples/widgets/widgets/tetrix/tetrixboard.h +++ b/examples/widgets/widgets/tetrix/tetrixboard.h @@ -67,7 +67,7 @@ class TetrixBoard : public QFrame Q_OBJECT public: - TetrixBoard(QWidget *parent = 0); + TetrixBoard(QWidget *parent = nullptr); void setNextPieceLabel(QLabel *label); QSize sizeHint() const override; diff --git a/examples/widgets/widgets/tetrix/tetrixpiece.cpp b/examples/widgets/widgets/tetrix/tetrixpiece.cpp index 3d8fa86860..b1b3ca9a99 100644 --- a/examples/widgets/widgets/tetrix/tetrixpiece.cpp +++ b/examples/widgets/widgets/tetrix/tetrixpiece.cpp @@ -48,12 +48,10 @@ ** ****************************************************************************/ -#include <QtCore> - -#include <stdlib.h> - #include "tetrixpiece.h" +#include <QtCore> + //! [0] void TetrixPiece::setRandomShape() { diff --git a/examples/widgets/widgets/tetrix/tetrixwindow.cpp b/examples/widgets/widgets/tetrix/tetrixwindow.cpp index 7e951aceb8..970a38c1dc 100644 --- a/examples/widgets/widgets/tetrix/tetrixwindow.cpp +++ b/examples/widgets/widgets/tetrix/tetrixwindow.cpp @@ -54,7 +54,8 @@ #include "tetrixwindow.h" //! [0] -TetrixWindow::TetrixWindow() +TetrixWindow::TetrixWindow(QWidget *parent) + : QWidget(parent) { board = new TetrixBoard; //! [0] diff --git a/examples/widgets/widgets/tetrix/tetrixwindow.h b/examples/widgets/widgets/tetrix/tetrixwindow.h index a21cef2ecf..3743d6cd2a 100644 --- a/examples/widgets/widgets/tetrix/tetrixwindow.h +++ b/examples/widgets/widgets/tetrix/tetrixwindow.h @@ -51,7 +51,6 @@ #ifndef TETRIXWINDOW_H #define TETRIXWINDOW_H -#include <QFrame> #include <QWidget> QT_BEGIN_NAMESPACE @@ -67,7 +66,7 @@ class TetrixWindow : public QWidget Q_OBJECT public: - TetrixWindow(); + TetrixWindow(QWidget *parent = nullptr); private: QLabel *createLabel(const QString &text); diff --git a/examples/widgets/widgets/tooltips/shapeitem.cpp b/examples/widgets/widgets/tooltips/shapeitem.cpp index 70c1cc03dc..68cc744b84 100644 --- a/examples/widgets/widgets/tooltips/shapeitem.cpp +++ b/examples/widgets/widgets/tooltips/shapeitem.cpp @@ -48,8 +48,6 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "shapeitem.h" //! [0] diff --git a/examples/widgets/widgets/tooltips/sortingbox.cpp b/examples/widgets/widgets/tooltips/sortingbox.cpp index 4769a30c64..685eaa7d1d 100644 --- a/examples/widgets/widgets/tooltips/sortingbox.cpp +++ b/examples/widgets/widgets/tooltips/sortingbox.cpp @@ -48,14 +48,13 @@ ** ****************************************************************************/ -#include <QtWidgets> - -#include <stdlib.h> - #include "sortingbox.h" +#include <QtWidgets> + //! [0] -SortingBox::SortingBox() +SortingBox::SortingBox(QWidget *parent) + : QWidget(parent) { //! [0] //! [1] setMouseTracking(true); @@ -63,7 +62,7 @@ SortingBox::SortingBox() setBackgroundRole(QPalette::Base); //! [2] - itemInMotion = 0; + itemInMotion = nullptr; //! [3] newCircleButton = createToolButton(tr("New Circle"), @@ -139,7 +138,7 @@ void SortingBox::paintEvent(QPaintEvent * /* event */) { QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing); - foreach (ShapeItem shapeItem, shapeItems) { + for (const ShapeItem &shapeItem : qAsConst(shapeItems)) { //! [8] //! [9] painter.translate(shapeItem.position()); //! [9] //! [10] @@ -178,7 +177,7 @@ void SortingBox::mouseReleaseEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton && itemInMotion) { moveItemTo(event->pos()); - itemInMotion = 0; + itemInMotion = nullptr; } } //! [13] diff --git a/examples/widgets/widgets/tooltips/sortingbox.h b/examples/widgets/widgets/tooltips/sortingbox.h index 2ac27614a5..3d0cecea2b 100644 --- a/examples/widgets/widgets/tooltips/sortingbox.h +++ b/examples/widgets/widgets/tooltips/sortingbox.h @@ -51,10 +51,10 @@ #ifndef SORTINGBOX_H #define SORTINGBOX_H -#include <QWidget> - #include "shapeitem.h" +#include <QWidget> + QT_BEGIN_NAMESPACE class QAction; class QPoint; @@ -67,7 +67,7 @@ class SortingBox : public QWidget Q_OBJECT public: - SortingBox(); + SortingBox(QWidget *parent = nullptr); protected: bool event(QEvent *event) override; diff --git a/examples/widgets/widgets/validators/CMakeLists.txt b/examples/widgets/widgets/validators/CMakeLists.txt index a1770d5337..9da1da775e 100644 --- a/examples/widgets/widgets/validators/CMakeLists.txt +++ b/examples/widgets/widgets/validators/CMakeLists.txt @@ -13,7 +13,8 @@ add_qt_executable(validators localeselector.cpp localeselector.h main.cpp validators.ui - LIBRARIES + validatorwidget.cpp validatorwidget.h + PUBLIC_LIBRARIES Qt::Widgets ) diff --git a/examples/widgets/widgets/validators/ledwidget.cpp b/examples/widgets/widgets/validators/ledwidget.cpp index 65248741b5..462f416c86 100644 --- a/examples/widgets/widgets/validators/ledwidget.cpp +++ b/examples/widgets/widgets/validators/ledwidget.cpp @@ -56,7 +56,7 @@ LEDWidget::LEDWidget(QWidget *parent) setPixmap(offPixmap); flashTimer.setInterval(200); flashTimer.setSingleShot(true); - connect(&flashTimer, SIGNAL(timeout()), this, SLOT(extinguish())); + connect(&flashTimer, &QTimer::timeout, this, &LEDWidget::extinguish); }; void LEDWidget::extinguish() diff --git a/examples/widgets/widgets/validators/ledwidget.h b/examples/widgets/widgets/validators/ledwidget.h index dcbfb176c2..c4b406db23 100644 --- a/examples/widgets/widgets/validators/ledwidget.h +++ b/examples/widgets/widgets/validators/ledwidget.h @@ -59,7 +59,7 @@ class LEDWidget : public QLabel { Q_OBJECT public: - LEDWidget(QWidget *parent = 0); + LEDWidget(QWidget *parent = nullptr); public slots: void flash(); diff --git a/examples/widgets/widgets/validators/localeselector.cpp b/examples/widgets/widgets/validators/localeselector.cpp index 2f702c9753..1382da0cc9 100644 --- a/examples/widgets/widgets/validators/localeselector.cpp +++ b/examples/widgets/widgets/validators/localeselector.cpp @@ -59,7 +59,9 @@ LocaleSelector::LocaleSelector(QWidget *parent) int index = 0; for (int _lang = QLocale::C; _lang <= QLocale::LastLanguage; ++_lang) { QLocale::Language lang = static_cast<QLocale::Language>(_lang); - foreach (const QLocale &l, QLocale::matchingLocales(lang, QLocale::AnyScript, QLocale::AnyCountry)) { + const QList<QLocale> locales = + QLocale::matchingLocales(lang, QLocale::AnyScript, QLocale::AnyCountry); + for (const QLocale &l : locales) { QString label = QLocale::languageToString(l.language()); label += QLatin1Char('/'); label += QLocale::countryToString(l.country()); @@ -79,7 +81,8 @@ LocaleSelector::LocaleSelector(QWidget *parent) if (curIndex != -1) setCurrentIndex(curIndex); - connect(this, SIGNAL(activated(int)), this, SLOT(emitLocaleSelected(int))); + connect(this, QOverload<int>::of(&LocaleSelector::activated), + this, &LocaleSelector::emitLocaleSelected); } void LocaleSelector::emitLocaleSelected(int index) diff --git a/examples/widgets/widgets/validators/localeselector.h b/examples/widgets/widgets/validators/localeselector.h index 05290eae81..611e2da66e 100644 --- a/examples/widgets/widgets/validators/localeselector.h +++ b/examples/widgets/widgets/validators/localeselector.h @@ -58,7 +58,7 @@ class LocaleSelector : public QComboBox Q_OBJECT public: - LocaleSelector(QWidget *parent = 0); + LocaleSelector(QWidget *parent = nullptr); signals: void localeSelected(const QLocale &locale); diff --git a/examples/widgets/widgets/validators/main.cpp b/examples/widgets/widgets/validators/main.cpp index d8ba2943d0..1fbf12410d 100644 --- a/examples/widgets/widgets/validators/main.cpp +++ b/examples/widgets/widgets/validators/main.cpp @@ -48,88 +48,9 @@ ** ****************************************************************************/ -#include <qdebug.h> -#include <QApplication> -#include <QLineEdit> -#include <QValidator> - -#include "ui_validators.h" - -class ValidatorWidget : public QWidget, public Ui::ValidatorsForm -{ - Q_OBJECT -public: - ValidatorWidget(QWidget *parent = 0); - -private slots: - void updateValidator(); - void updateDoubleValidator(); - void _setLocale(const QLocale &l) { setLocale(l); updateValidator(); updateDoubleValidator(); } - -private: - QIntValidator *validator; - QDoubleValidator *doubleValidator; -}; - -ValidatorWidget::ValidatorWidget(QWidget *parent) - : QWidget(parent) -{ - setupUi(this); - - connect(localeSelector, SIGNAL(localeSelected(QLocale)), this, SLOT(_setLocale(QLocale))); - - connect(minVal, SIGNAL(editingFinished()), this, SLOT(updateValidator())); - connect(maxVal, SIGNAL(editingFinished()), this, SLOT(updateValidator())); - connect(editor, SIGNAL(editingFinished()), ledWidget, SLOT(flash())); - - connect(doubleMaxVal, SIGNAL(editingFinished()), this, SLOT(updateDoubleValidator())); - connect(doubleMinVal, SIGNAL(editingFinished()), this, SLOT(updateDoubleValidator())); - connect(doubleDecimals, SIGNAL(valueChanged(int)), this, SLOT(updateDoubleValidator())); - connect(doubleFormat, SIGNAL(activated(int)), this, SLOT(updateDoubleValidator())); - connect(doubleEditor, SIGNAL(editingFinished()), doubleLedWidget, SLOT(flash())); +#include "validatorwidget.h" - validator = 0; - doubleValidator = 0; - updateValidator(); - updateDoubleValidator(); -}; - -void ValidatorWidget::updateValidator() -{ - QIntValidator *v = new QIntValidator(minVal->value(), maxVal->value(), this); - v->setLocale(locale()); - editor->setValidator(v); - delete validator; - validator = v; - - QString s = editor->text(); - int i = 0; - if (validator->validate(s, i) == QValidator::Invalid) { - editor->clear(); - } else { - editor->setText(s); - } -} - -void ValidatorWidget::updateDoubleValidator() -{ - QDoubleValidator *v - = new QDoubleValidator(doubleMinVal->value(), doubleMaxVal->value(), - doubleDecimals->value(), this); - v->setNotation(static_cast<QDoubleValidator::Notation>(doubleFormat->currentIndex())); - v->setLocale(locale()); - doubleEditor->setValidator(v); - delete doubleValidator; - doubleValidator = v; - - QString s = doubleEditor->text(); - int i = 0; - if (doubleValidator->validate(s, i) == QValidator::Invalid) { - doubleEditor->clear(); - } else { - doubleEditor->setText(s); - } -} +#include <QApplication> int main(int argc, char **argv) { @@ -142,5 +63,3 @@ int main(int argc, char **argv) return app.exec(); } - -#include "main.moc" diff --git a/examples/widgets/widgets/validators/validators.pro b/examples/widgets/widgets/validators/validators.pro index ab1eb7809b..029cf95aca 100644 --- a/examples/widgets/widgets/validators/validators.pro +++ b/examples/widgets/widgets/validators/validators.pro @@ -4,8 +4,8 @@ requires(qtConfig(combobox)) FORMS += validators.ui RESOURCES += validators.qrc -SOURCES += main.cpp ledwidget.cpp localeselector.cpp -HEADERS += ledwidget.h localeselector.h +SOURCES += main.cpp ledwidget.cpp localeselector.cpp validatorwidget.cpp +HEADERS += ledwidget.h localeselector.h validatorwidget.h # install target.path = $$[QT_INSTALL_EXAMPLES]/widgets/widgets/validators diff --git a/examples/widgets/widgets/validators/validatorwidget.cpp b/examples/widgets/widgets/validators/validatorwidget.cpp new file mode 100644 index 0000000000..fa0a55aa52 --- /dev/null +++ b/examples/widgets/widgets/validators/validatorwidget.cpp @@ -0,0 +1,122 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "validatorwidget.h" + +#include <QtWidgets> + +ValidatorWidget::ValidatorWidget(QWidget *parent) + : QWidget(parent) +{ + setupUi(this); + + connect(localeSelector, &LocaleSelector::localeSelected, + this, &ValidatorWidget::setLocale); + connect(localeSelector, &LocaleSelector::localeSelected, + this, &ValidatorWidget::updateValidator); + connect(localeSelector, &LocaleSelector::localeSelected, + this, &ValidatorWidget::updateDoubleValidator); + + connect(minVal, &QSpinBox::editingFinished, + this, &ValidatorWidget::updateValidator); + connect(maxVal, &QSpinBox::editingFinished, + this, &ValidatorWidget::updateValidator); + connect(editor, &QLineEdit::editingFinished, + ledWidget, &LEDWidget::flash); + + connect(doubleMaxVal, &QDoubleSpinBox::editingFinished, + this, &ValidatorWidget::updateDoubleValidator); + connect(doubleMinVal, &QDoubleSpinBox::editingFinished, + this, &ValidatorWidget::updateDoubleValidator); + connect(doubleDecimals, QOverload<int>::of(&QSpinBox::valueChanged), + this, &ValidatorWidget::updateDoubleValidator); + connect(doubleFormat, QOverload<int>::of(&QComboBox::activated), + this, &ValidatorWidget::updateDoubleValidator); + connect(doubleEditor, &QLineEdit::editingFinished, + doubleLedWidget, &LEDWidget::flash); + + updateValidator(); + updateDoubleValidator(); +} + +void ValidatorWidget::updateValidator() +{ + QIntValidator *v = new QIntValidator(minVal->value(), maxVal->value(), this); + v->setLocale(locale()); + delete editor->validator(); + editor->setValidator(v); + + QString s = editor->text(); + int i = 0; + if (v->validate(s, i) == QValidator::Invalid) { + editor->clear(); + } else { + editor->setText(s); + } +} + +void ValidatorWidget::updateDoubleValidator() +{ + QDoubleValidator *v + = new QDoubleValidator(doubleMinVal->value(), doubleMaxVal->value(), + doubleDecimals->value(), this); + v->setNotation(static_cast<QDoubleValidator::Notation>(doubleFormat->currentIndex())); + v->setLocale(locale()); + delete doubleEditor->validator(); + doubleEditor->setValidator(v); + + QString s = doubleEditor->text(); + int i = 0; + if (v->validate(s, i) == QValidator::Invalid) { + doubleEditor->clear(); + } else { + doubleEditor->setText(s); + } +} diff --git a/examples/widgets/widgets/validators/validatorwidget.h b/examples/widgets/widgets/validators/validatorwidget.h new file mode 100644 index 0000000000..bcc4a9b91e --- /dev/null +++ b/examples/widgets/widgets/validators/validatorwidget.h @@ -0,0 +1,64 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QWidget> + +#include "ui_validators.h" + +class ValidatorWidget : public QWidget, public Ui::ValidatorsForm +{ + Q_OBJECT +public: + ValidatorWidget(QWidget *parent = nullptr); + +private slots: + void updateValidator(); + void updateDoubleValidator(); +}; diff --git a/examples/widgets/widgets/wiggly/dialog.cpp b/examples/widgets/widgets/wiggly/dialog.cpp index 010648eda6..a7a72b3570 100644 --- a/examples/widgets/widgets/wiggly/dialog.cpp +++ b/examples/widgets/widgets/wiggly/dialog.cpp @@ -48,12 +48,12 @@ ** ****************************************************************************/ -#include <QLineEdit> -#include <QVBoxLayout> - #include "dialog.h" #include "wigglywidget.h" +#include <QLineEdit> +#include <QVBoxLayout> + //! [0] Dialog::Dialog(QWidget *parent) : QDialog(parent) diff --git a/examples/widgets/widgets/wiggly/dialog.h b/examples/widgets/widgets/wiggly/dialog.h index a0981dc6b6..357b6354b5 100644 --- a/examples/widgets/widgets/wiggly/dialog.h +++ b/examples/widgets/widgets/wiggly/dialog.h @@ -59,7 +59,7 @@ class Dialog : public QDialog Q_OBJECT public: - explicit Dialog(QWidget *parent = 0); + explicit Dialog(QWidget *parent = nullptr); }; //! [0] diff --git a/examples/widgets/widgets/wiggly/main.cpp b/examples/widgets/widgets/wiggly/main.cpp index bd2a50a8eb..cd888c4084 100644 --- a/examples/widgets/widgets/wiggly/main.cpp +++ b/examples/widgets/widgets/wiggly/main.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QApplication> - #include "dialog.h" +#include <QApplication> + int main(int argc, char *argv[]) { QApplication app(argc, argv); diff --git a/examples/widgets/widgets/wiggly/wigglywidget.cpp b/examples/widgets/widgets/wiggly/wigglywidget.cpp index 1b8f3cffad..0399fe9056 100644 --- a/examples/widgets/widgets/wiggly/wigglywidget.cpp +++ b/examples/widgets/widgets/wiggly/wigglywidget.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "wigglywidget.h" +#include <QtWidgets> + //! [0] WigglyWidget::WigglyWidget(QWidget *parent) : QWidget(parent) diff --git a/examples/widgets/widgets/wiggly/wigglywidget.h b/examples/widgets/widgets/wiggly/wigglywidget.h index 58a7d045e1..1d909c34da 100644 --- a/examples/widgets/widgets/wiggly/wigglywidget.h +++ b/examples/widgets/widgets/wiggly/wigglywidget.h @@ -60,7 +60,7 @@ class WigglyWidget : public QWidget Q_OBJECT public: - WigglyWidget(QWidget *parent = 0); + WigglyWidget(QWidget *parent = nullptr); public slots: void setText(const QString &newText) { text = newText; } diff --git a/examples/widgets/widgets/windowflags/controllerwindow.cpp b/examples/widgets/widgets/windowflags/controllerwindow.cpp index 78323810ed..e2abad89f4 100644 --- a/examples/widgets/widgets/windowflags/controllerwindow.cpp +++ b/examples/widgets/widgets/windowflags/controllerwindow.cpp @@ -53,7 +53,8 @@ #include "controllerwindow.h" //! [0] -ControllerWindow::ControllerWindow() +ControllerWindow::ControllerWindow(QWidget *parent) + : QWidget(parent) { previewWindow = new PreviewWindow(this); @@ -61,7 +62,8 @@ ControllerWindow::ControllerWindow() createHintsGroupBox(); quitButton = new QPushButton(tr("&Quit")); - connect(quitButton, SIGNAL(clicked()), qApp, SLOT(quit())); + connect(quitButton, &QPushButton::clicked, + qApp, &QApplication::quit); QHBoxLayout *bottomLayout = new QHBoxLayout; bottomLayout->addStretch(); @@ -219,7 +221,8 @@ void ControllerWindow::createHintsGroupBox() QCheckBox *ControllerWindow::createCheckBox(const QString &text) { QCheckBox *checkBox = new QCheckBox(text); - connect(checkBox, SIGNAL(clicked()), this, SLOT(updatePreview())); + connect(checkBox, &QCheckBox::clicked, + this, &ControllerWindow::updatePreview); return checkBox; } //! [7] @@ -228,7 +231,8 @@ QCheckBox *ControllerWindow::createCheckBox(const QString &text) QRadioButton *ControllerWindow::createRadioButton(const QString &text) { QRadioButton *button = new QRadioButton(text); - connect(button, SIGNAL(clicked()), this, SLOT(updatePreview())); + connect(button, &QRadioButton::clicked, + this, &ControllerWindow::updatePreview); return button; } //! [8] diff --git a/examples/widgets/widgets/windowflags/controllerwindow.h b/examples/widgets/widgets/windowflags/controllerwindow.h index cfb88ed20f..43ec67e27f 100644 --- a/examples/widgets/widgets/windowflags/controllerwindow.h +++ b/examples/widgets/widgets/windowflags/controllerwindow.h @@ -69,7 +69,7 @@ class ControllerWindow : public QWidget Q_OBJECT public: - ControllerWindow(); + ControllerWindow(QWidget *parent = nullptr); private slots: void updatePreview(); diff --git a/examples/widgets/widgets/windowflags/previewwindow.cpp b/examples/widgets/widgets/windowflags/previewwindow.cpp index 725a134daf..8773dccb05 100644 --- a/examples/widgets/widgets/windowflags/previewwindow.cpp +++ b/examples/widgets/widgets/windowflags/previewwindow.cpp @@ -48,10 +48,10 @@ ** ****************************************************************************/ -#include <QtWidgets> - #include "previewwindow.h" +#include <QtWidgets> + //! [0] PreviewWindow::PreviewWindow(QWidget *parent) : QWidget(parent) @@ -61,7 +61,8 @@ PreviewWindow::PreviewWindow(QWidget *parent) textEdit->setLineWrapMode(QTextEdit::NoWrap); closeButton = new QPushButton(tr("&Close")); - connect(closeButton, SIGNAL(clicked()), this, SLOT(close())); + connect(closeButton, &QPushButton::clicked, + this, &PreviewWindow::close); QVBoxLayout *layout = new QVBoxLayout; layout->addWidget(textEdit); diff --git a/examples/widgets/widgets/windowflags/previewwindow.h b/examples/widgets/widgets/windowflags/previewwindow.h index e9efd09507..9bb487e8ab 100644 --- a/examples/widgets/widgets/windowflags/previewwindow.h +++ b/examples/widgets/widgets/windowflags/previewwindow.h @@ -64,7 +64,7 @@ class PreviewWindow : public QWidget Q_OBJECT public: - PreviewWindow(QWidget *parent = 0); + PreviewWindow(QWidget *parent = nullptr); void setWindowFlags(Qt::WindowFlags flags); |