Nt Widgets C++ Classes

Widgets, layouts and styles for desktop user interfaces.

Using the Module

target_link_libraries(app PRIVATE Nt::Widgets)

Nt Widgets builds user interfaces from widgets: QWidget and its subclasses such as QLabel, QPushButton and QCheckBox, arranged by layouts (QVBoxLayout, QHBoxLayout) and drawn by a QStyle. Create a QApplication, then a window, add widgets to it, and show it. See Using Nt Widgets.

Link with Nt::Widgets and include <QApplication> and the widget headers you use.

Classes

QAbstractButton	The QAbstractButton class is the abstract base class of button widgets.
QAbstractItemDelegate	The QAbstractItemDelegate class is used to display and edit data items from a model.
QAbstractItemView	The QAbstractItemView class provides the basic functionality for item view classes.
QAbstractScrollArea	The QAbstractScrollArea class is the base class of widgets that scroll their contents.
QAbstractSlider	The QAbstractSlider class is the base of the widgets that pick an integer value from a range.
QAbstractSpinBox	The QAbstractSpinBox class is the base of the widgets that show a value in a text with two buttons that step it.
QApplication	The QApplication class manages the GUI application's control flow and main settings.
QBoxLayout	The QBoxLayout class lines up child widgets horizontally or vertically.
QButtonGroup	The QButtonGroup class organizes buttons that belong together, such as a choice of radio buttons.
QCalendarWidget	The QCalendarWidget class shows a month and lets the user pick a date.
QCheckBox	The QCheckBox class provides a checkbox with a text label.
QColorDialog	The QColorDialog class lets the user choose a color.
QComboBox	The QComboBox class is a button that drops down a list of items to choose from.
QCommandLinkButton	The QCommandLinkButton class provides a large flat button with an arrow, a title and a description.
QCompleter	The QCompleter class completes what the user types from a list of words.
QDateEdit	The QDateEdit class lets the user edit a date.
QDateTimeEdit	The QDateTimeEdit class lets the user edit a date and a time.
QDial	The QDial class provides a round knob that picks a value from a range.
QDialog	The QDialog class is the base class of dialog windows.
QDialogButtonBox	The QDialogButtonBox class lays out the buttons of a dialog in the order of the platform.
QDockWidget	The QDockWidget class provides a panel that sits at a side of a QMainWindow or floats as a window.
QDoubleSpinBox	The QDoubleSpinBox class lets the user pick a floating-point number by typing it or stepping with two buttons.
QErrorMessage	The QErrorMessage class shows error messages that the user can choose not to see again.
QFileDialog	The QFileDialog class lets the user choose files or a directory.
QFocusFrame	The QFocusFrame class draws a frame around a widget, outside it.
QFontComboBox	The QFontComboBox class lets the user choose a font family from a list.
QFontDialog	The QFontDialog class lets the user choose a font.
QFormLayout	The QFormLayout class lays out a form of labels and fields.
QFrame	The QFrame class is the base class of widgets that can have a frame.
QGridLayout	The QGridLayout class lays out widgets in a grid of rows and columns.
QGroupBox	The QGroupBox class is a frame with a title that groups other widgets.
QHBoxLayout	The QHBoxLayout class lines up widgets horizontally.
QHeaderView	The QHeaderView class provides the row or column headers of a table.
QInputDialog	The QInputDialog class asks the user for a single value: a text, an item of a list, or a number.
QKeySequenceEdit	The QKeySequenceEdit class lets the user enter a key sequence, such as a shortcut.
QLCDNumber	The QLCDNumber class shows a number with digits that look like those of a calculator.
QLabel	The QLabel class displays text.
QLayout	The QLayout class is the base class of geometry managers.
QLayoutItem	The QLayoutItem class provides an abstract item that a QLayout manipulates.
QLineEdit	The QLineEdit class is a one-line text editor.
QListWidget	The QListWidget class provides a list of items, one on each row.
QListWidgetItem	The QListWidgetItem class is a row of a QListWidget.
QMainWindow	The QMainWindow class provides the main window of an application.
QMdiArea	The QMdiArea class provides an area in which sub-windows are shown, for an application with many documents.
QMdiSubWindow	The QMdiSubWindow class is a window inside a QMdiArea.
QMenu	The QMenu class provides a menu: a list of actions to choose from.
QMenuBar	The QMenuBar class provides a row of menu titles, usually at the top of a window.
QMessageBox	The QMessageBox class shows a message and asks the user to answer with a button.
QPlainTextEdit	The QPlainTextEdit class is an editor for text of many lines.
QProgressBar	The QProgressBar class shows how far an operation has come.
QProgressDialog	The QProgressDialog class shows the progress of a long task and lets the user cancel it.
QPushButton	The QPushButton class provides a command button.
QRadioButton	The QRadioButton class provides a radio button with a text label.
QRubberBand	The QRubberBand class draws a rectangle or a line that shows a selection or a new position.
QScrollArea	The QScrollArea class provides a scrolling view of another widget.
QScrollBar	The QScrollBar class provides a bar that scrolls the contents of a widget.
QSizeGrip	The QSizeGrip class provides a corner handle for resizing a window.
QSizePolicy	The QSizePolicy class is a layout attribute describing horizontal and vertical resizing policy.
QSlider	The QSlider class provides a slider that picks a value from a range.
QSpacerItem	The QSpacerItem class provides blank space in a layout.
QSpinBox	The QSpinBox class lets the user pick an integer by typing it or stepping with two buttons.
QSplashScreen	The QSplashScreen class shows a picture while the application starts.
QSplitter	The QSplitter class lets the user change the sizes of the widgets in it by dragging the bars between them.
QStackedLayout	The QStackedLayout class lays out widgets so that only one of them is visible at a time.
QStackedWidget	The QStackedWidget class is a stack of widgets of which only one is visible at a time.
QStatusBar	The QStatusBar class is a bar for messages and small widgets at the bottom of a window.
QStyle	The QStyle class is an abstract base class that encapsulates the look and feel of a GUI.
QStyleFactory	The QStyleFactory class creates QStyle objects.
QStyleOption	The QStyleOption class stores the parameters that QStyle functions use to draw.
QStyleOptionButton	The QStyleOptionButton class describes the parameters for drawing buttons.
QStyleOptionComboBox	The QStyleOptionComboBox class describes the parameters for drawing a combo box.
QStyleOptionFrame	The QStyleOptionFrame class describes the parameters for drawing a frame.
QStyleOptionGroupBox	The QStyleOptionGroupBox class describes the parameters for drawing a group box.
QStyleOptionHeader	The QStyleOptionHeader class describes the parameters for drawing one section of a header.
QStyleOptionMenuItem	The QStyleOptionMenuItem class describes the parameters for drawing an entry of a menu, or a title of a menu bar.
QStyleOptionProgressBar	The QStyleOptionProgressBar class describes the parameters for drawing a progress bar.
QStyleOptionSlider	The QStyleOptionSlider class describes the parameters for drawing a slider.
QStyleOptionSpinBox	The QStyleOptionSpinBox class describes the parameters for drawing a spin box.
QStyleOptionTab	The QStyleOptionTab class describes the parameters for drawing a tab of a tab bar.
QStyleOptionViewItem	The QStyleOptionViewItem class describes how an item of an item view is drawn.
QStyledItemDelegate	The QStyledItemDelegate class provides display and editing facilities for data items from a model.
QTabBar	The QTabBar class provides a row of tabs.
QTabWidget	The QTabWidget class is a stack of pages with a row of tabs to choose the page.
QTableWidget	The QTableWidget class provides a table of items.
QTableWidgetItem	The QTableWidgetItem class is a cell of a QTableWidget.
QTextBrowser	The QTextBrowser class shows documents that the user can go back and forward through.
QTextCursor	The QTextCursor class is a position in the text of a QPlainTextEdit, with a selection, which can move and change the text.
QTextEdit	The QTextEdit class shows rich text, and edits plain text.
QTimeEdit	The QTimeEdit class lets the user edit a time.
QToolBar	The QToolBar class provides a bar of buttons for actions.
QToolBox	The QToolBox class provides a column of items, one of which shows its widget at a time.
QToolButton	The QToolButton class is a small button for a command, usually with a short text or an arrow.
QToolTip	The QToolTip class shows a text in a small label next to the mouse.
QTreeView	The QTreeView class provides a default model/view implementation of a tree view.
QTreeWidget	The QTreeWidget class provides a tree view that uses a predefined tree model.
QTreeWidgetItem	The QTreeWidgetItem class provides an item for use with the QTreeWidget convenience class.
QVBoxLayout	The QVBoxLayout class lines up widgets vertically.
QWidget	The QWidget class is the base class of all user interface objects.
QWidgetAction	The QWidgetAction class is an action that a widget stands for in a tool bar.
QWidgetItem	The QWidgetItem class is a layout item that represents a widget.
QWizard	The QWizard class leads the user through a task in a sequence of pages.
QWizardPage	The QWizardPage class is a page of a QWizard.