Viadeo Twitter Google Bookmarks ! Facebook Digg del.icio.us MySpace Yahoo MyWeb Blinklist Netvouz Reddit Simpy StumbleUpon Bookmarks Windows Live Favorites 
Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Classes principales  ·  Annotées  ·  Classes groupées  ·  Modules  ·  Fonctions  · 

QFontComboBox Class

The QFontComboBox widget is a combobox that lets the user select a font family. More...

 #include <QFontComboBox>

Inherits: QComboBox.

This class was introduced in Qt 4.2.

Public Types

enum FontFilter { AllFonts, ScalableFonts, NonScalableFonts, MonospacedFonts, ProportionalFonts }
flags FontFilters
enum PaintDeviceMetric { PdmWidth, PdmHeight, PdmWidthMM, PdmHeightMM, ..., PdmPhysicalDpiY }

Properties

Public Functions

QFontComboBox(QWidget * parent = 0)
~QFontComboBox()
virtual ~QPaintDevice()
int colorCount() const
QFont currentFont() const
int depth() const
FontFilters fontFilters() const
int height() const
int heightMM() const
int logicalDpiX() const
int logicalDpiY() const
virtual QPaintEngine * paintEngine() const = 0
bool paintingActive() const
int physicalDpiX() const
int physicalDpiY() const
void setFontFilters(FontFilters filters)
void setWritingSystem(QFontDatabase::WritingSystem script)
int width() const
int widthMM() const
QFontDatabase::WritingSystem writingSystem() const

Reimplemented Public Functions

virtual QSize sizeHint() const
  • 59 public functions inherited from QComboBox
  • 215 public functions inherited from QWidget
  • 31 public functions inherited from QObject

Public Slots

void setCurrentFont(const QFont & font)
  • 4 public slots inherited from QComboBox
  • 19 public slots inherited from QWidget
  • 1 public slot inherited from QObject

Signals

void currentFontChanged(const QFont & font)

Protected Functions

QPaintDevice()
virtual void init(QPainter * painter) const
virtual int metric(PaintDeviceMetric metric) const
virtual QPaintDevice * redirected(QPoint * offset) const
virtual QPainter * sharedPainter() const

Reimplemented Protected Functions

virtual bool event(QEvent * e)
  • 15 protected functions inherited from QComboBox
  • 37 protected functions inherited from QWidget
  • 9 protected functions inherited from QObject

Additional Inherited Members

  • 4 static public members inherited from QWidget
  • 11 static public members inherited from QObject
  • 1 protected slot inherited from QWidget

Detailed Description

The QFontComboBox widget is a combobox that lets the user select a font family.

The combobox is populated with an alphabetized list of font family names, such as Arial, Helvetica, and Times New Roman. Family names are displayed using the actual font when possible. For fonts such as Symbol, where the name is not representable in the font itself, a sample of the font is displayed next to the family name.

QFontComboBox is often used in toolbars, in conjunction with a QComboBox for controlling the font size and two QToolButtons for bold and italic.

When the user selects a new font, the currentFontChanged() signal is emitted in addition to currentIndexChanged().

Call setWritingSystem() to tell QFontComboBox to show only fonts that support a given writing system, and setFontFilters() to filter out certain types of fonts as e.g. non scalable fonts or monospaced fonts.

Screenshot of QFontComboBox on Windows XP

See also QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase, and Character Map Example.

Member Type Documentation

enum QFontComboBox::FontFilter
flags QFontComboBox::FontFilters

This enum can be used to only show certain types of fonts in the font combo box.

ConstantValueDescription
QFontComboBox::AllFonts0Show all fonts
QFontComboBox::ScalableFonts0x1Show scalable fonts
QFontComboBox::NonScalableFonts0x2Show non scalable fonts
QFontComboBox::MonospacedFonts0x4Show monospaced fonts
QFontComboBox::ProportionalFonts0x8Show proportional fonts

The FontFilters type is a typedef for QFlags<FontFilter>. It stores an OR combination of FontFilter values.

Property Documentation

currentFont : QFont

This property holds the currently selected font.

Access functions:

QFont currentFont() const
void setCurrentFont(const QFont & font)

Notifier signal:

void currentFontChanged(const QFont & font)

See also currentFontChanged(), currentIndex, and currentText.

fontFilters : FontFilters

This property holds the filter for the combobox.

By default, all fonts are listed.

Access functions:

FontFilters fontFilters() const
void setFontFilters(FontFilters filters)

See also writingSystem.

writingSystem : QFontDatabase::WritingSystem

This property holds the writing system that serves as a filter for the combobox.

If script is QFontDatabase::Any (the default), all fonts are listed.

Access functions:

QFontDatabase::WritingSystem writingSystem() const
void setWritingSystem(QFontDatabase::WritingSystem script)

See also fontFilters.

Member Function Documentation

QFontComboBox::QFontComboBox(QWidget * parent = 0)

Constructs a font combobox with the given parent.

QFontComboBox::~QFontComboBox()

Destroys the combobox.

bool QFontComboBox::event(QEvent * e) [virtual protected]

Reimplemented from QObject::event().

QSize QFontComboBox::sizeHint() const [virtual]

Reimplemented from QWidget::sizeHint().

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt 5.0-snapshot
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !
 
 
 
 
Partenaires

Hébergement Web