QStyleSheetItem Class Reference

The QStyleSheetItem class provides an encapsulation of a set of text styles. More...

#include <qstylesheet.h>

Inherits Qt.

List of all member functions.

Public Members

QStyleSheetItem ( QStyleSheet * parent, const QString & name )
QStyleSheetItem ( const QStyleSheetItem & other )
~QStyleSheetItem ()
QStyleSheetItem & operator= ( const QStyleSheetItem & other )
QString name () const
QStyleSheet * styleSheet ()
const QStyleSheet * styleSheet () const
enum DisplayMode { DisplayBlock, DisplayInline, DisplayListItem, DisplayNone }
DisplayMode displayMode () const
void setDisplayMode ( DisplayMode m )
int alignment () const
void setAlignment ( int f )
enum VerticalAlignment { VAlignBaseline, VAlignSub, VAlignSuper }
VerticalAlignment verticalAlignment () const
void setVerticalAlignment ( VerticalAlignment valign )
int fontWeight () const
void setFontWeight ( int w )
int logicalFontSize () const
void setLogicalFontSize ( int s )
int logicalFontSizeStep () const
void setLogicalFontSizeStep ( int s )
int fontSize () const
void setFontSize ( int s )
QString fontFamily () const
void setFontFamily ( const QString & fam )
int numberOfColumns () const (obsolete)
void setNumberOfColumns ( int ncols ) (obsolete)
QColor color () const
void setColor ( const QColor & c )
bool fontItalic () const
void setFontItalic ( bool italic )
bool definesFontItalic () const
bool fontUnderline () const
void setFontUnderline ( bool underline )
bool definesFontUnderline () const
bool fontStrikeOut () const
void setFontStrikeOut ( bool strikeOut )
bool definesFontStrikeOut () const
bool isAnchor () const
void setAnchor ( bool anc )
enum WhiteSpaceMode { WhiteSpaceNormal, WhiteSpacePre, WhiteSpaceNoWrap }
WhiteSpaceMode whiteSpaceMode () const
void setWhiteSpaceMode ( WhiteSpaceMode m )
enum Margin { MarginLeft, MarginRight, MarginTop, MarginBottom, MarginFirstLine, MarginAll, MarginVertical, MarginHorizontal }
int margin ( Margin m ) const
void setMargin ( Margin m, int v )
enum ListStyle { ListDisc, ListCircle, ListSquare, ListDecimal, ListLowerAlpha, ListUpperAlpha }
ListStyle listStyle () const
void setListStyle ( ListStyle s )
QString contexts () const
void setContexts ( const QString & c )
bool allowedInContext ( const QStyleSheetItem * s ) const
bool selfNesting () const
void setSelfNesting ( bool nesting )
int lineSpacing () const (obsolete)

Detailed Description

The QStyleSheetItem class provides an encapsulation of a set of text styles.

A style sheet item consists of a name and a set of attributes that specifiy its font, color, etc. When used in a style sheet (see styleSheet()), items define the name() of a rich text tag and the display property changes associated with it.

The display mode attribute indicates whether the item is a block, an inline element or a list element; see setDisplayMode(). The treatment of whitespace is controlled by the white space mode; see setWhiteSpaceMode(). An item's margins are set with setMargin(), In the case of list items, the list style is set with setListStyle(). An item may be a hypertext link anchor; see setAnchor(). Other attributes are set with setAlignment(), setVerticalAlignment(), setFontFamily(), setFontSize(), setFontWeight(), setFontItalic(), setFontUnderline(), setFontStrikeOut and setColor().

Member Type Documentation

QStyleSheetItem::DisplayMode

This enum type defines the way adjacent elements are displayed.

QStyleSheetItem::DisplayBlock - elements are displayed as a rectangular block (e.g. ...).
QStyleSheetItem::DisplayInline - elements are displayed in a horizontally flowing sequence (e.g. ...).
QStyleSheetItem::DisplayListItem - elements are displayed in a vertical sequence (e.g. <li>...</li>).
QStyleSheetItem::DisplayNone - elements are not displayed at all.

QStyleSheetItem::ListStyle

This enum type defines how the items in a list are prefixed when displayed.

QStyleSheetItem::ListDisc - a filled circle (i.e. a bullet)
QStyleSheetItem::ListCircle - an unfilled circle
QStyleSheetItem::ListSquare - a filled square
QStyleSheetItem::ListDecimal - an integer in base 10: 1, 2, 3, ...
QStyleSheetItem::ListLowerAlpha - a lowercase letter: a, b, c, ...
QStyleSheetItem::ListUpperAlpha - an uppercase letter: A, B, C, ...

QStyleSheetItem::Margin

QStyleSheetItem::MarginLeft - left margin
QStyleSheetItem::MarginRight - right margin
QStyleSheetItem::MarginTop - top margin
QStyleSheetItem::MarginBottom - bottom margin
QStyleSheetItem::MarginAll - all margins (left, right, top and bottom)
QStyleSheetItem::MarginVertical - top and bottom margins
QStyleSheetItem::MarginHorizontal - left and right margins
QStyleSheetItem::MarginFirstLine - margin (indentation) of the first line of a paragarph (in addition to the MarginLeft of the paragraph)

QStyleSheetItem::VerticalAlignment

This enum type defines the way elements are aligned vertically. This is only supported for text elements.

QStyleSheetItem::VAlignBaseline - align the baseline of the element (or the bottom, if the element doesn't have a baseline) with the baseline of the parent
QStyleSheetItem::VAlignSub - subscript the element
QStyleSheetItem::VAlignSuper - superscript the element

QStyleSheetItem::WhiteSpaceMode

This enum defines the ways in which QStyleSheet can treat whitespace.

QStyleSheetItem::WhiteSpaceNormal - any sequence of whitespace (including line-breaks) is equivalent to a single space.
QStyleSheetItem::WhiteSpacePre - whitespace must be output exactly as given in the input.
QStyleSheetItem::WhiteSpaceNoWrap - multiple spaces are collapsed as with WhiteSpaceNormal, but no automatic line-breaks occur. To break lines manually, use the   tag.

Member Function Documentation

QStyleSheetItem::QStyleSheetItem ( QStyleSheet * parent, const QString & name )

Constructs a new style called name for the stylesheet parent.

All properties in QStyleSheetItem are initially in the "do not change" state, except display mode, which defaults to DisplayInline.

QStyleSheetItem::QStyleSheetItem ( const QStyleSheetItem & other )

Copy constructor. Constructs a copy of other that is not bound to any style sheet.

QStyleSheetItem::~QStyleSheetItem ()

Destroys the style. Note that QStyleSheetItem objects become owned by QStyleSheet when they are created.

int QStyleSheetItem::alignment () const

Returns the alignment of this style. Possible values are AlignAuto, AlignLeft, AlignRight, AlignCenter or AlignJustify.

See also setAlignment() and Qt::AlignmentFlags.

bool QStyleSheetItem::allowedInContext ( const QStyleSheetItem * s ) const

Returns TRUE if this style can be nested into an element of style s; otherwise returns FALSE.

QColor QStyleSheetItem::color () const

Returns the text color of this style or an invalid color if no color has been set.

See also setColor() and QColor::isValid().

QString QStyleSheetItem::contexts () const

Returns a space-separated list of names of styles that may contain elements of this style. If nothing has been set, contexts() returns an empty string, which indicates that this style can be nested everywhere.

bool QStyleSheetItem::definesFontItalic () const

Returns TRUE if the style defines a font shape; otherwise returns FALSE. A style does not define any shape until setFontItalic() is called.

See also setFontItalic() and fontItalic().

bool QStyleSheetItem::definesFontStrikeOut () const

Returns TRUE if the style defines a setting for the strikeOut property of the font; otherwise returns FALSE. A style does not define this until setFontStrikeOut() is called.

See also setFontStrikeOut() and fontStrikeOut().

bool QStyleSheetItem::definesFontUnderline () const

Returns TRUE if the style defines a setting for the underline property of the font; otherwise returns FALSE. A style does not define this until setFontUnderline() is called.

See also setFontUnderline() and fontUnderline().

DisplayMode QStyleSheetItem::displayMode () const

Returns the display mode of the style.

QString QStyleSheetItem::fontFamily () const

Returns the font family setting of the style. This is either a valid font family or QString::null if no family has been set.

See also setFontFamily(), QFont::family(), and QFont::setFamily().

bool QStyleSheetItem::fontItalic () const

Returns TRUE if the style sets an italic font; otherwise returns FALSE.

See also setFontItalic() and definesFontItalic().

int QStyleSheetItem::fontSize () const

Returns the font size setting of the style. This is either a valid point size or QStyleSheetItem::Undefined.

See also setFontSize(), QFont::pointSize(), and QFont::setPointSize().

bool QStyleSheetItem::fontStrikeOut () const

Returns TRUE if the style sets a strike out font; otherwise returns FALSE.

See also setFontStrikeOut() and definesFontStrikeOut().

bool QStyleSheetItem::fontUnderline () const

Returns TRUE if the style sets an underlined font; otherwise returns FALSE.

See also setFontUnderline() and definesFontUnderline().

int QStyleSheetItem::fontWeight () const

Returns the font weight setting of the style. This is either a valid QFont::Weight or the value QStyleSheetItem::Undefined.

bool QStyleSheetItem::isAnchor () const

Returns whether this style is an anchor.

int QStyleSheetItem::lineSpacing () const

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

Returns the linespacing

ListStyle QStyleSheetItem::listStyle () const

Returns the list style of the style.

int QStyleSheetItem::logicalFontSize () const

Returns the logical font size setting of the style. This is either a valid size between 1 and 7 or QStyleSheetItem::Undefined.

int QStyleSheetItem::logicalFontSizeStep () const

Returns the logical font size step of this style.

The default is 0. Tags such as big define +1; small defines -1.

int QStyleSheetItem::margin ( Margin m ) const

Returns the width of margin m in pixels.

The margin, m, can be MarginLeft, MarginRight, MarginTop, MarginBottom, MarginAll, MarginVertical or MarginHorizontal.

QString QStyleSheetItem::name () const

Returns the name of the style item.

int QStyleSheetItem::numberOfColumns () const

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

Returns the number of columns for this style.

See also setNumberOfColumns(), displayMode(), and setDisplayMode().

QStyleSheetItem & QStyleSheetItem::operator= ( const QStyleSheetItem & other )

Assignment. Assings a copy of other that is not bound to any style sheet. Unbounds first from previous style sheet.

bool QStyleSheetItem::selfNesting () const

Returns TRUE if this style has self-nesting enabled; otherwise returns FALSE.

void QStyleSheetItem::setAlignment ( int f )

Sets the alignment to f. This only makes sense for styles with a display mode of DisplayBlock. Possible values are AlignAuto, AlignLeft, AlignRight, AlignCenter or AlignJustify.

See also alignment(), displayMode(), and Qt::AlignmentFlags.

void QStyleSheetItem::setAnchor ( bool anc )

If anc is TRUE, sets this style to be an anchor (hypertext link); otherwise sets it to not be an anchor. Elements in this style link to other documents or anchors.

void QStyleSheetItem::setColor ( const QColor & c )

Sets the text color of this style to c.

void QStyleSheetItem::setContexts ( const QString & c )

Sets a space-separated list of names of styles that may contain elements of this style. If c is empty, the style can be nested everywhere.

void QStyleSheetItem::setDisplayMode ( DisplayMode m )

Sets the display mode of the style to m.

void QStyleSheetItem::setFontFamily ( const QString & fam )

Sets the font family setting of the style to fam.

See also fontFamily(), QFont::family(), and QFont::setFamily().

void QStyleSheetItem::setFontItalic ( bool italic )

If italic is TRUE sets italic for the style; otherwise sets upright.

See also fontItalic() and definesFontItalic().

void QStyleSheetItem::setFontSize ( int s )

Sets the font size setting of the style to s points.

See also fontSize(), QFont::pointSize(), and QFont::setPointSize().

void QStyleSheetItem::setFontStrikeOut ( bool strikeOut )

If strikeOut is TRUE, sets strike out for the style; otherwise sets no strike out.

See also fontStrikeOut() and definesFontStrikeOut().

void QStyleSheetItem::setFontUnderline ( bool underline )

If underline is TRUE, sets underline for the style; otherwise sets no underline.

See also fontUnderline() and definesFontUnderline().

void QStyleSheetItem::setFontWeight ( int w )

Sets the font weight setting of the style to w. Valid values are those defined by QFont::Weight.

void QStyleSheetItem::setListStyle ( ListStyle s )

Sets the list style of the style to s.

This is used by nested elements that have a display mode of DisplayListItem.

See also listStyle(), DisplayMode, and ListStyle.

void QStyleSheetItem::setLogicalFontSize ( int s )

Sets the logical font size setting of the style to s. Valid logical sizes are 1 to 7.

See also logicalFontSize(), QFont::pointSize(), and QFont::setPointSize().

void QStyleSheetItem::setLogicalFontSizeStep ( int s )

Sets the logical font size step of this style to s.

void QStyleSheetItem::setMargin ( Margin m, int v )

Sets the width of margin m to v pixels.

The margin, m, can be MarginLeft, MarginRight, MarginTop, MarginBottom, MarginAll, MarginVertical or MarginHorizontal. The value v must be >= 0.

void QStyleSheetItem::setNumberOfColumns ( int ncols )

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

Sets the number of columns for this style. Elements in the style are divided into columns.

This makes sense only if the style uses a block display mode (see QStyleSheetItem::DisplayMode).

void QStyleSheetItem::setSelfNesting ( bool nesting )

Sets the self-nesting property for this style to nesting.

In order to support "dirty" HTML, paragraphs  and list items <li> are not self-nesting. This means that starting a new paragraph or list item automatically closes the previous one.

void QStyleSheetItem::setVerticalAlignment ( VerticalAlignment valign )

Sets the vertical alignment to valign. Possible values are VAlignBaseline, VAlignSub or VAlignSuper.

The vertical alignment property is not inherited.

void QStyleSheetItem::setWhiteSpaceMode ( WhiteSpaceMode m )

Sets the whitespace mode to m.

QStyleSheet * QStyleSheetItem::styleSheet ()

Returns the style sheet this item is in.

const QStyleSheet * QStyleSheetItem::styleSheet () const

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Returns the style sheet this item is in.

VerticalAlignment QStyleSheetItem::verticalAlignment () const

Returns the vertical alignment of the style. Possible values are VAlignBaseline, VAlignSub or VAlignSuper.

WhiteSpaceMode QStyleSheetItem::whiteSpaceMode () const

Returns the whitespace mode.

See also setWhiteSpaceMode() and WhiteSpaceMode.

Trademarks

Qt version 3.1.2