Obsolete Members for QFont

The following members of class QFont are obsolete. They are provided to keep old source code working. We strongly advise against using them in new code.

Public Functions

(obsolete) QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false)
(obsolete) int legacyWeight() const
(obsolete) void setLegacyWeight(int legacyWeight)

Member Function Documentation

QFont::QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false)

This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.

Constructs a font object with the specified family, pointSize, weight and italic settings.

If pointSize is zero or negative, the point size of the font is set to a system-dependent default value. Generally, this is 12 points.

The family name may optionally also include a foundry name, e.g. "Helvetica [Cronyx]". If the family is available from more than one foundry and the foundry isn't specified, an arbitrary foundry is chosen. If the family isn't available a family will be set using the font matching algorithm.

This will split the family string on a comma and call setFamilies() with the resulting list. To preserve a font that uses a comma in its name, use the constructor that takes a QStringList.

See also Weight, setFamily(), setPointSize(), setWeight(), setItalic(), setStyleHint(), setFamilies(), and QGuiApplication::font().

int QFont::legacyWeight() const

This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.

Use weight() instead.

Returns the weight of the font converted to the non-standard font weight scale used in Qt 5 and earlier versions.

Since Qt 6, the OpenType standard's font weight scale is used instead of a non-standard scale. This requires conversion from values that use the old scale. For convenience, this function may be used when porting from code which uses the old weight scale.

See also setLegacyWeight(), setWeight(), weight(), and QFontInfo.

void QFont::setLegacyWeight(int legacyWeight)

This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.

Use setWeight() instead.

Sets the weight of the font to legacyWeight using the legacy font weight scale of Qt 5 and previous versions.

Since Qt 6, the OpenType standard's font weight scale is used instead of a non-standard scale. This requires conversion from values that use the old scale. For convenience, this function may be used when porting from code which uses the old weight scale.

Note: If styleName() is set, this value may be ignored for font selection.

See also setWeight(), weight(), legacyWeight(), and QFontInfo.

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