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QTextFragment Class Reference
[QtGui module]

The QTextFragment class holds a piece of text in a QTextDocument with a single QTextCharFormat. More...


Special Methods

Detailed Description

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

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.

Method Documentation

QTextFragment.__init__ (self)

Creates a new empty text fragment.

QTextFragment.__init__ (self, QTextFragment o)

QTextCharFormat QTextFragment.charFormat (self)

Returns the text fragment's character format.

See also text().

int QTextFragment.charFormatIndex (self)

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

See also QTextDocument.allFormats().

bool QTextFragment.contains (self, int position)

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

list-of-QGlyphRun QTextFragment.glyphRuns (self)

Returns the glyphs of this text fragment. The positions of the glyphs are relative to the position of the QTextBlock's layout.

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

bool QTextFragment.isValid (self)

Returns true if this is a valid text fragment (i.e. has a valid position in a document); otherwise returns false.

int QTextFragment.length (self)

Returns the number of characters in the text fragment.

See also text().

int QTextFragment.position (self)

Returns the position of this text fragment in the document.

QString QTextFragment.text (self)

Returns the text fragment's as plain text.

See also length() and charFormat().

bool QTextFragment.__eq__ (self, QTextFragment o)

bool QTextFragment.__ge__ (self, QTextFragment o)

bool QTextFragment.__lt__ (self, QTextFragment o)

bool QTextFragment.__ne__ (self, QTextFragment o)

PyQt 4.9.4 for WindowsCopyright © Riverbank Computing Ltd and Nokia 2012Qt 4.8.2