- class QTextFragment#
The
QTextFragment
class holds a piece of text in aQTextDocument
with a singleQTextCharFormat
. More…Synopsis#
Methods#
def
__init__()
def
charFormat()
def
contains()
def
glyphRuns()
def
isValid()
def
length()
def
__ne__()
def
__lt__()
def
__eq__()
def
position()
def
text()
Note
This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE
Detailed Description#
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()
andcharFormat()
functions. Thelength()
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 thecontains()
function.- __init__()#
Creates a new empty text fragment.
- __init__(o)
- Parameters:
o –
QTextFragment
Copies the content (text and format) of the
other
text fragment to this text fragment.- charFormat()#
- Return type:
Returns the text fragment’s character format.
See also
- charFormatIndex()#
- Return type:
int
Returns an index into the document’s internal list of character formats for the text fragment’s character format.
See also
- contains(position)#
- Parameters:
position – int
- Return type:
bool
Returns
true
if the text fragment contains the text at the givenposition
in the document; otherwise returnsfalse
.- glyphRuns([from=-1[, length=-1]])#
- Parameters:
from – int
length – int
- Return type:
.list of QGlyphRun
Returns the glyphs corresponding to
len
characters of this text fragment starting at positionpos
. The positions of the glyphs are relative to the position of theQTextBlock
‘s layout.If
pos
is less than zero, it will default to the start of theQTextFragment
. Iflen
is less than zero, it will default to the length of the fragment.See also
- isValid()#
- Return type:
bool
Returns
true
if this is a valid text fragment (i.e. has a valid position in a document); otherwise returnsfalse
.- length()#
- Return type:
int
Returns the number of characters in the text fragment.
See also
- __ne__(o)#
- Parameters:
o –
QTextFragment
- Return type:
bool
Returns
true
if this text fragment is different (at a different position) from theother
text fragment; otherwise returns false.- __lt__(o)#
- Parameters:
o –
QTextFragment
- Return type:
bool
Returns
true
if this text fragment appears earlier in the document than theother
text fragment; otherwise returnsfalse
.- __eq__(o)#
- Parameters:
o –
QTextFragment
- Return type:
bool
Returns
true
if this text fragment is the same (at the same position) as theother
text fragment; otherwise returnsfalse
.- position()#
- Return type:
int
Returns the position of this text fragment in the document.
- text()#
- Return type:
str
Returns the text fragment’s as plain text.
See also