\reentrant More...

#include <qtextobject.h>

Collaboration diagram for QTextFragment:

Public Member Functions
	QTextFragment (const QTextDocumentPrivate *priv, int f, int fe)

	QTextFragment ()
	Creates a new empty text fragment.

	QTextFragment (const QTextFragment &o)
	Copies the content (text and format) of the other text fragment to this text fragment.

QTextFragment &	operator= (const QTextFragment &o)
	Assigns the content (text and format) of the other text fragment to this text fragment.

bool	isValid () const
	Returns `true` if this is a valid text fragment (i.e.

bool	operator== (const QTextFragment &o) const
	Returns `true` if this text fragment is the same (at the same position) as the other text fragment; otherwise returns `false`.

bool	operator!= (const QTextFragment &o) const
	Returns `true` if this text fragment is different (at a different position) from the other text fragment; otherwise returns false.

bool	operator< (const QTextFragment &o) const
	Returns `true` if this text fragment appears earlier in the document than the other text fragment; otherwise returns `false`.

int	position () const
	Returns the position of this text fragment in the document.

int	length () const
	Returns the number of characters in the text fragment.

bool	contains (int position) const
	Returns `true` if the text fragment contains the text at the given position in the document; otherwise returns `false`.

QTextCharFormat	charFormat () const
	Returns the text fragment's character format.

int	charFormatIndex () const
	Returns an index into the document's internal list of character formats for the text fragment's character format.

QString	text () const
	Returns the text fragment's as plain text.

QList< QGlyphRun >	glyphRuns (int from=-1, int length=-1) const
	Returns the glyphs corresponding to len characters of this text fragment starting at position pos.

Detailed Description

\reentrant

The QTextFragment class holds a piece of text in a QTextDocument with a single QTextCharFormat. \inmodule QtGui

A text fragment describes a piece of text that is stored with a single character format. Text in which the character format changes can be represented by sequences of text fragments with different formats.

If the user edits the text in a fragment and introduces a different character format, the fragment's text will be split at each point where the format changes, and new fragments will be created. For example, changing the style of some text in the middle of a sentence will cause the fragment to be broken into three separate fragments: the first and third with the same format as before, and the second with the new style. The first fragment will contain the text from the beginning of the sentence, the second will contain the text from the middle, and the third takes the text from the end of the sentence.

A fragment's text and character format can be obtained with the text() and charFormat() functions. The length() function gives the length of the text in the fragment. position() gives the position in the document of the start of the fragment. To determine whether the fragment contains a particular position within the document, use the contains() function.

See also: QTextDocument, {Rich Text Document Structure}

Definition at line 255 of file qtextobject.h.

Constructor & Destructor Documentation

◆ QTextFragment() [1/3]

QTextFragment::QTextFragment	(	const QTextDocumentPrivate *	priv,
		int	f,
		int	fe )

inline

Definition at line 258 of file qtextobject.h.

◆ QTextFragment() [2/3]

QTextFragment::QTextFragment ( )

inline

Creates a new empty text fragment.

Definition at line 259 of file qtextobject.h.

◆ QTextFragment() [3/3]

QTextFragment::QTextFragment ( const QTextFragment & o )

inline

Copies the content (text and format) of the other text fragment to this text fragment.

Definition at line 260 of file qtextobject.h.

Member Function Documentation

◆ charFormat()

QTextCharFormat QTextFragment::charFormat ( ) const

Returns the text fragment's character format.

See also: text()

Definition at line 1715 of file qtextobject.cpp.

Referenced by QWidgetTextControlPrivate::activateLinkUnderCursor(), QQuickTextControlPrivate::activateLinkUnderCursor(), QQuickTextNodeEngine::addTextBlock(), QWidgetTextControl::anchorPosition(), QWidgetTextControl::findNextPrevAnchor(), main(), and QTextOdfWriter::writeInlineCharacter().

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◆ charFormatIndex()

int QTextFragment::charFormatIndex ( ) const

Returns an index into the document's internal list of character formats for the text fragment's character format.

See also: QTextDocument::allFormats()

Definition at line 1729 of file qtextobject.cpp.

References QTextFragmentData::format.

◆ contains()

bool QTextFragment::contains ( int position ) const

Returns true if the text fragment contains the text at the given position in the document; otherwise returns false.

Definition at line 1702 of file qtextobject.cpp.

References pos, and position().

Referenced by main().

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◆ glyphRuns()

QList< QGlyphRun > QTextFragment::glyphRuns	(	int	pos = -1,
		int	len = -1 ) const

Returns the glyphs corresponding to len characters of this text fragment starting at position pos.

The positions of the glyphs are relative to the position of the QTextBlock's layout.

If pos is less than zero, it will default to the start of the QTextFragment. If len is less than zero, it will default to the length of the fragment.

See also: QGlyphRun, QTextBlock::layout(), QTextLayout::position(), QPainter::drawGlyphRun()

Definition at line 1640 of file qtextobject.cpp.

References QTextLine::glyphRuns(), i, layout, QLayout::layout(), pos, position(), and ret.

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◆ isValid()

bool QTextFragment::isValid ( ) const

inline

Returns true if this is a valid text fragment (i.e.

has a valid position in a document); otherwise returns false.

Definition at line 263 of file qtextobject.h.

Referenced by main().

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◆ length()

int QTextFragment::length ( ) const

Returns the number of characters in the text fragment.

See also: text()

Definition at line 1684 of file qtextobject.cpp.

Referenced by QWidgetTextControlPrivate::activateLinkUnderCursor(), QQuickTextControlPrivate::activateLinkUnderCursor(), QQuickTextNodeEngine::addTextBlock(), QWidgetTextControl::findNextPrevAnchor(), and main().

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◆ operator!=()

bool QTextFragment::operator!= ( const QTextFragment & o ) const

inline

Returns true if this text fragment is different (at a different position) from the other text fragment; otherwise returns false.

Definition at line 266 of file qtextobject.h.

References o.

◆ operator<()

bool QTextFragment::operator< ( const QTextFragment & o ) const

inline

Returns true if this text fragment appears earlier in the document than the other text fragment; otherwise returns false.

Definition at line 267 of file qtextobject.h.

References o, and position().

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◆ operator=()

QTextFragment & QTextFragment::operator= ( const QTextFragment & o )

inline

Assigns the content (text and format) of the other text fragment to this text fragment.

Definition at line 261 of file qtextobject.h.

References o.

◆ operator==()

bool QTextFragment::operator== ( const QTextFragment & o ) const

inline

Returns true if this text fragment is the same (at the same position) as the other text fragment; otherwise returns false.

Definition at line 265 of file qtextobject.h.

References o.

◆ position()

int QTextFragment::position ( ) const

Returns the position of this text fragment in the document.

Definition at line 1671 of file qtextobject.cpp.

Referenced by QWidgetTextControlPrivate::activateLinkUnderCursor(), QQuickTextControlPrivate::activateLinkUnderCursor(), QWidgetTextControl::anchorPosition(), QWidgetTextControl::findNextPrevAnchor(), and main().

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◆ text()

QString QTextFragment::text ( ) const

Returns the text fragment's as plain text.

See also: length(), charFormat()

Definition at line 1742 of file qtextobject.cpp.

Referenced by QQuickTextNodeEngine::addTextBlock().

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The documentation for this class was generated from the following files:

qtbase/src/gui/text/qtextobject.h (05fc3aef53348fb58be6308076e000825b704e58)
qtbase/src/gui/text/qtextobject.cpp (bd29b03368ae7d5228edc88cb44be89a00a3a21c)

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ QTextFragment() [1/3]

◆ QTextFragment() [2/3]

◆ QTextFragment() [3/3]

Member Function Documentation

◆ charFormat()

◆ charFormatIndex()

◆ contains()

◆ glyphRuns()

◆ isValid()

◆ length()

◆ operator!=()

◆ operator<()

◆ operator=()

◆ operator==()

◆ position()

◆ text()