class QTextDocument#

The QTextDocument class holds formatted text. More…

Inheritance diagram of PySide6.QtGui.QTextDocument

Synopsis#

Properties#

Methods#

Virtual methods#

Slots#

Signals#

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#

QTextDocument is a container for structured rich text documents, providing support for styled text and various types of document elements, such as lists, tables, frames, and images. They can be created for use in a QTextEdit, or used independently.

Each document element is described by an associated format object. Each format object is treated as a unique object by QTextDocuments, and can be passed to objectForFormat() to obtain the document element that it is applied to.

A QTextDocument can be edited programmatically using a QTextCursor , and its contents can be examined by traversing the document structure. The entire document structure is stored as a hierarchy of document elements beneath the root frame, found with the rootFrame() function. Alternatively, if you just want to iterate over the textual contents of the document you can use begin() , end() , and findBlock() to retrieve text blocks that you can examine and iterate over.

The layout of a document is determined by the documentLayout() ; you can create your own QAbstractTextDocumentLayout subclass and set it using setDocumentLayout() if you want to use your own layout logic. The document’s title and other meta-information can be obtained by calling the metaInformation() function. For documents that are exposed to users through the QTextEdit class, the document title is also available via the QTextEdit::documentTitle() function.

The toPlainText() and toHtml() convenience functions allow you to retrieve the contents of the document as plain text and HTML. The document’s text can be searched using the find() functions.

Undo/redo of operations performed on the document can be controlled using the setUndoRedoEnabled() function. The undo/redo system can be controlled by an editor widget through the undo() and redo() slots; the document also provides contentsChanged() , undoAvailable() , and redoAvailable() signals that inform connected editor widgets about the state of the undo/redo system. The following are the undo/redo operations of a QTextDocument :

  • Insertion or removal of characters. A sequence of insertions or removals within the same text block are regarded as a single undo/redo operation.

  • Insertion or removal of text blocks. Sequences of insertion or removals in a single operation (e.g., by selecting and then deleting text) are regarded as a single undo/redo operation.

  • Text character format changes.

  • Text block format changes.

  • Text block group format changes.

See also

QTextCursor Rich Text Processing

class MetaInformation#

This enum describes the different types of meta information that can be added to a document.

Constant

Description

QTextDocument.DocumentTitle

The title of the document.

QTextDocument.DocumentUrl

The url of the document. The loadResource() function uses this url as the base when loading relative resources.

QTextDocument.CssMedia

This value is used to select the corresponding ‘@media’ rule, if any, from a specified CSS stylesheet when setHtml() is called. This enum value has been introduced in Qt 6.3.

See also

metaInformation() setMetaInformation() setHtml()

class MarkdownFeature#
class FindFlag#

(inherits enum.Flag) This enum describes the options available to QTextDocument ‘s find function. The options can be OR-ed together from the following list:

Constant

Description

QTextDocument.FindBackward

Search backwards instead of forwards.

QTextDocument.FindCaseSensitively

By default find works case insensitive. Specifying this option changes the behaviour to a case sensitive find operation.

QTextDocument.FindWholeWords

Makes find match only complete words.
class ResourceType#

(inherits enum.IntEnum) This enum describes the types of resources that can be loaded by QTextDocument ‘s loadResource() function or by QTextBrowser::setSource().

Constant

Description

QTextDocument.UnknownResource

No resource is loaded, or the resource type is not known.

QTextDocument.HtmlResource

The resource contains HTML.

QTextDocument.ImageResource

The resource contains image data. Currently supported data types are QMetaType::QPixmap and QMetaType::QImage. If the corresponding variant is of type QMetaType::QByteArray then Qt attempts to load the image using loadFromData . QMetaType::QIcon is currently not supported. The icon needs to be converted to one of the supported types first, for example using pixmap .

QTextDocument.StyleSheetResource

The resource contains CSS.

QTextDocument.MarkdownResource

The resource contains Markdown.

QTextDocument.UserResource

The first available value for user defined resource types.

See also

loadResource() sourceType()

class Stacks#

Constant

Description

QTextDocument.UndoStack

The undo stack.

QTextDocument.RedoStack

The redo stack.

QTextDocument.UndoAndRedoStacks

Both the undo and redo stacks.

New in version 4.7.

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property baseUrlᅟ: QUrl#

This property holds the base URL used to resolve relative resource URLs within the document..

Resource URLs are resolved to be within the same directory as the target of the base URL meaning any portion of the path after the last ‘/’ will be ignored.

Access functions:
property blockCountᅟ: int#

This property holds the number of text blocks in the document..

The value of this property is undefined in documents with tables or frames.

By default, if defined, this property contains a value of 1.

Access functions:
property defaultFontᅟ: QFont#

This property holds the default font used to display the document’s text.

Access functions:
property defaultStyleSheetᅟ: str#

The default style sheet is applied to all newly HTML formatted text that is inserted into the document, for example using setHtml() or insertHtml() .

The style sheet needs to be compliant to CSS 2.1 syntax.

Note

Changing the default style sheet does not have any effect to the existing content of the document.

See also

Supported HTML Subset

Access functions:
property documentMarginᅟ: float#

The margin around the document. The default is 4.

Access functions:
property indentWidthᅟ: float#

Returns the width used for text list and text block indenting.

The indent properties of QTextListFormat and QTextBlockFormat specify multiples of this value. The default indent width is 40.

Access functions:
property layoutEnabledᅟ: bool#

This property holds whether QTextDocument should recalculate the layout after every change.

If this property is set to true, any change to the document triggers a layout, which makes everything work as expected but takes time.

Temporarily disabling the layout can save time when making multiple changes (not just text content, but also default font, default text option….) so that the document is only laid out once at the end. This can be useful when the text width or page size isn’t yet known, for instance.

By default, this property is true.

See also

setTextWidth

Access functions:
property maximumBlockCountᅟ: int#

This property Specifies the limit for blocks in the document..

Specifies the maximum number of blocks the document may have. If there are more blocks in the document that specified with this property blocks are removed from the beginning of the document.

A negative or zero value specifies that the document may contain an unlimited amount of blocks.

The default value is 0.

Note that setting this property will apply the limit immediately to the document contents.

Setting this property also disables the undo redo history.

This property is undefined in documents with tables or frames.

Access functions:
property modifiedᅟ: bool#

This property holds whether the document has been modified by the user.

By default, this property is false.

Access functions:
property pageSizeᅟ: QSizeF#

This property holds the page size that should be used for laying out the document.

The units are determined by the underlying paint device. The size is measured in logical pixels when painting to the screen, and in points (1/72 inch) when painting to a printer.

By default, for a newly-created, empty document, this property contains an undefined size.

Access functions:
property sizeᅟ: QSizeF#

This property holds the actual size of the document. This is equivalent to documentLayout() ->documentSize();.

The size of the document can be changed either by setting a text width or setting an entire page size.

Note that the width is always >= pageSize() .width().

By default, for a newly-created, empty document, this property contains a configuration-dependent size.

Access functions:
property textWidthᅟ: float#

The text width specifies the preferred width for text in the document. If the text (or content in general) is wider than the specified with it is broken into multiple lines and grows vertically. If the text cannot be broken into multiple lines to fit into the specified text width it will be larger and the size() and the idealWidth() property will reflect that.

If the text width is set to -1 then the text will not be broken into multiple lines unless it is enforced through an explicit line break or a new paragraph.

The default value is -1.

Setting the text width will also set the page height to -1, causing the document to grow or shrink vertically in a continuous way. If you want the document layout to break the text into multiple pages then you have to set the pageSize property instead.

Access functions:
property undoRedoEnabledᅟ: bool#

This property holds whether undo/redo are enabled for this document.

This defaults to true. If disabled, the undo stack is cleared and no items will be added to it.

Access functions:
property useDesignMetricsᅟ: bool#

This property holds whether the document uses design metrics of fonts to improve the accuracy of text layout.

If this property is set to true, the layout will use design metrics. Otherwise, the metrics of the paint device as set on setPaintDevice() will be used.

Using design metrics makes a layout have a width that is no longer dependent on hinting and pixel-rounding. This means that WYSIWYG text layout becomes possible because the width scales much more linearly based on paintdevice metrics than it would otherwise.

By default, this property is false.

Access functions:
__init__(text[, parent=None])#
Parameters:

Constructs a QTextDocument containing the plain (unformatted) text specified, and with the given parent.

__init__([parent=None])
Parameters:

parent – QObject

Constructs an empty QTextDocument with the given parent.

addResource(type, name, resource)#
Parameters:

  • type – int

  • name – QUrl

  • resource – object

Warning

This section contains snippets that were automatically translated from C++ to Python and may contain errors.

Adds the resource resource to the resource cache, using type and name as identifiers. type should be a value from ResourceType .

For example, you can add an image as a resource in order to reference it from within the document:

document.addResource(QTextDocument.ImageResource,
    QUrl("mydata://image.png"), QVariant(image))

The image can be inserted into the document using the QTextCursor API:

imageFormat = QTextImageFormat()
imageFormat.setName("mydata://image.png")
cursor.insertImage(imageFormat)

Alternatively, you can insert images using the HTML img tag:

editor.append("<img src=\"mydata://image.png\" />")
adjustSize()#

Adjusts the document to a reasonable size.

allFormats()#
Return type:

.list of QTextFormat

Returns a list of text formats for all the formats used in the document.

availableRedoSteps()#
Return type:

int

Returns the number of available redo steps.

availableUndoSteps()#
Return type:

int

Returns the number of available undo steps.

baseUrl()#
Return type:

QUrl

See also

setBaseUrl()

Getter of property baseUrlᅟ .

baseUrlChanged(url)#
Parameters:

url – QUrl

Notification signal of property baseUrlᅟ .

baselineOffset()#
Return type:

float

Returns the baseline offset in % used in the document layout.

begin()#
Return type:

QTextBlock

Returns the document’s first text block.

See also

firstBlock()

blockCount()#
Return type:

int

Getter of property blockCountᅟ .

blockCountChanged(newBlockCount)#
Parameters:

newBlockCount – int

This signal is emitted when the total number of text blocks in the document changes. The value passed in newBlockCount is the new total.

characterAt(pos)#
Parameters:

pos – int

Return type:

QChar

Returns the character at position pos, or a null character if the position is out of range.

See also

characterCount()

characterCount()#
Return type:

int

Returns the number of characters of this document.

Note

As a QTextDocument always contains at least one QChar::ParagraphSeparator, this method will return at least 1.

See also

blockCount() characterAt()

clear()#

Clears the document.

clearUndoRedoStacks([historyToClear=QTextDocument.Stacks.UndoAndRedoStacks])#
Parameters:

historyToClear – Stacks

Clears the stacks specified by stacksToClear.

This method clears any commands on the undo stack, the redo stack, or both (the default). If commands are cleared, the appropriate signals are emitted, undoAvailable() or redoAvailable() .

clone([parent=None])#
Parameters:

parent – QObject

Return type:

QTextDocument

Creates a new QTextDocument that is a copy of this text document. parent is the parent of the returned text document.

contentsChange(from, charsRemoved, charsAdded)#
Parameters:

  • from – int

  • charsRemoved – int

  • charsAdded – int

This signal is emitted whenever the document’s content changes; for example, when text is inserted or deleted, or when formatting is applied.

Information is provided about the position of the character in the document where the change occurred, the number of characters removed (charsRemoved), and the number of characters added (charsAdded).

The signal is emitted before the document’s layout manager is notified about the change. This hook allows you to implement syntax highlighting for the document.

contentsChanged()#

This signal is emitted whenever the document’s content changes; for example, when text is inserted or deleted, or when formatting is applied.

See also

contentsChange()

createObject(f)#
Parameters:

f – QTextFormat

Return type:

QTextObject

Creates and returns a new document object (a QTextObject ), based on the given format.

QTextObjects will always get created through this method, so you must reimplement it if you use custom text objects inside your document.

cursorPositionChanged(cursor)#
Parameters:

cursor – QTextCursor

This signal is emitted whenever the position of a cursor changed due to an editing operation. The cursor that changed is passed in cursor. If the document is used with the QTextEdit class and you need a signal when the cursor is moved with the arrow keys you can use the cursorPositionChanged() signal in QTextEdit.

defaultCursorMoveStyle()#
Return type:

CursorMoveStyle

The default cursor movement style is used by all QTextCursor objects created from the document. The default is Qt::LogicalMoveStyle.

defaultFont()#
Return type:

QFont

Returns the default font to be used in the document layout.

See also

setDefaultFont()

Getter of property defaultFontᅟ .

defaultStyleSheet()#
Return type:

str

See also

setDefaultStyleSheet()

Getter of property defaultStyleSheetᅟ .

defaultTextOption()#
Return type:

QTextOption

The default text option is used on all QTextLayout objects in the document. This allows setting global properties for the document such as the default word wrap mode.

documentLayout()#
Return type:

QAbstractTextDocumentLayout

Returns the document layout for this document.

documentLayoutChanged()#

This signal is emitted when a new document layout is set.

documentMargin()#
Return type:

float

See also

setDocumentMargin()

Getter of property documentMarginᅟ .

drawContents(painter[, rect=QRectF()])#
Parameters:

Draws the content of the document with painter p, clipped to rect. If rect is a null rectangle (default) then the document is painted unclipped.

end()#
Return type:

QTextBlock

Warning

This section contains snippets that were automatically translated from C++ to Python and may contain errors.

This function returns a block to test for the end of the document while iterating over it.

for it in doc:
    print(it.text().toStdString(), "\n")

The block returned is invalid and represents the block after the last block in the document. You can use lastBlock() to retrieve the last valid block of the document.

See also

lastBlock()

find(expr, cursor[, options=QTextDocument.FindFlags()])#
Parameters:
Return type:

QTextCursor

Finds the next occurrence that matches the given regular expression, expr, within the same paragraph in the document.

The search starts at the position of the given cursor, and proceeds forwards through the document unless specified otherwise in the search options. The options control the type of search performed.

Returns a cursor with the match selected if a match was found; otherwise returns a null cursor.

If the given cursor has a selection, the search begins after the selection; otherwise it begins at the cursor’s position.

By default the search is case insensitive, and can match text anywhere in the document.

find(expr[, from=0[, options=QTextDocument.FindFlags()]])
Parameters:
Return type:

QTextCursor

Finds the next occurrence that matches the given regular expression, expr, within the same paragraph in the document.

The search starts at the given from position, and proceeds forwards through the document unless specified otherwise in the search options. The options control the type of search performed.

Returns a cursor with the match selected if a match was found; otherwise returns a null cursor.

If the from position is 0 (the default) the search begins from the beginning of the document; otherwise it begins at the specified position.

Warning

For historical reasons, the case sensitivity option set on expr is ignored. Instead, the options are used to determine if the search is case sensitive or not.

find(subString, cursor[, options=QTextDocument.FindFlags()])
Parameters:
Return type:

QTextCursor

Finds the next occurrence of the string, subString, in the document. The search starts at the position of the given cursor, and proceeds forwards through the document unless specified otherwise in the search options. The options control the type of search performed.

Returns a cursor with the match selected if subString was found; otherwise returns a null cursor.

If the given cursor has a selection, the search begins after the selection; otherwise it begins at the cursor’s position.

By default the search is case insensitive, and can match text anywhere in the document.

find(subString[, from=0[, options=QTextDocument.FindFlags()]])
Parameters:

  • subString – str

  • from – int

  • options – Combination of FindFlag

Return type:

QTextCursor

This is an overloaded function.

Finds the next occurrence of the string, subString, in the document. The search starts at the given position, and proceeds forwards through the document unless specified otherwise in the search options. The options control the type of search performed.

Returns a cursor with the match selected if subString was found; otherwise returns a null cursor.

If the position is 0 (the default) the search begins from the beginning of the document; otherwise it begins at the specified position.

findBlock(pos)#
Parameters:

pos – int

Return type:

QTextBlock

Returns the text block that contains the pos-th character.

findBlockByLineNumber(blockNumber)#
Parameters:

blockNumber – int

Return type:

QTextBlock

Returns the text block that contains the specified lineNumber.

findBlockByNumber(blockNumber)#
Parameters:

blockNumber – int

Return type:

QTextBlock

Returns the text block with the specified blockNumber.

See also

blockNumber()

firstBlock()#
Return type:

QTextBlock

Returns the document’s first text block.

frameAt(pos)#
Parameters:

pos – int

Return type:

QTextFrame

idealWidth()#
Return type:

float

Returns the ideal width of the text document. The ideal width is the actually used width of the document without optional alignments taken into account. It is always <= size() .width().

indentWidth()#
Return type:

float

See also

setIndentWidth()

Getter of property indentWidthᅟ .

isEmpty()#
Return type:

bool

Returns true if the document is empty; otherwise returns false.

isLayoutEnabled()#
Return type:

bool

Getter of property layoutEnabledᅟ .

isModified()#
Return type:

bool

Getter of property modifiedᅟ .

isRedoAvailable()#
Return type:

bool

Returns true if redo is available; otherwise returns false.

isUndoAvailable()#
Return type:

bool

Returns true if undo is available; otherwise returns false.

isUndoRedoEnabled()#
Return type:

bool

Getter of property undoRedoEnabledᅟ .

lastBlock()#
Return type:

QTextBlock

Returns the document’s last (valid) text block.

lineCount()#
Return type:

int

Returns the number of lines of this document (if the layout supports this). Otherwise, this is identical to the number of blocks.

loadResource(type, name)#
Parameters:

  • type – int

  • name – QUrl

Return type:

object

Loads data of the specified type from the resource with the given name.

This function is called by the rich text engine to request data that isn’t directly stored by QTextDocument , but still associated with it. For example, images are referenced indirectly by the name attribute of a QTextImageFormat object.

When called by Qt, type is one of the values of ResourceType .

If the QTextDocument is a child object of a QObject that has an invokable loadResource method such as QTextEdit, QTextBrowser or a QTextDocument itself then the default implementation tries to retrieve the data from the parent.

markContentsDirty(from, length)#
Parameters:

  • from – int

  • length – int

Marks the contents specified by the given position and length as “dirty”, informing the document that it needs to be laid out again.

maximumBlockCount()#
Return type:

int

See also

setMaximumBlockCount()

Getter of property maximumBlockCountᅟ .

metaInformation(info)#
Parameters:

info – MetaInformation

Return type:

str

Returns meta information about the document of the type specified by info.

modificationChanged(m)#
Parameters:

m – bool

This signal is emitted whenever the content of the document changes in a way that affects the modification state. If changed is true, the document has been modified; otherwise it is false.

For example, calling setModified (false) on a document and then inserting text causes the signal to get emitted. If you undo that operation, causing the document to return to its original unmodified state, the signal will get emitted again.

object(objectIndex)#
Parameters:

objectIndex – int

Return type:

QTextObject

Returns the text object associated with the given objectIndex.

objectForFormat(arg__1)#
Parameters:

arg__1 – QTextFormat

Return type:

QTextObject

Returns the text object associated with the format f.

pageCount()#
Return type:

int

returns the number of pages in this document.

pageSize()#
Return type:

QSizeF

See also

setPageSize()

Getter of property pageSizeᅟ .

print_(printer)#
Parameters:

printer – QPagedPaintDevice

redo()#

This is an overloaded function.

Redoes the last editing operation on the document if redo is available .

redo(cursor)
Parameters:

cursor – QTextCursor

Redoes the last editing operation on the document if redo is available .

The provided cursor is positioned at the end of the location where the edition operation was redone.

redoAvailable(arg__1)#
Parameters:

arg__1 – bool

This signal is emitted whenever redo operations become available (available is true) or unavailable (available is false).

resource(type, name)#
Parameters:

  • type – int

  • name – QUrl

Return type:

object

Returns data of the specified type from the resource with the given name.

This function is called by the rich text engine to request data that isn’t directly stored by QTextDocument , but still associated with it. For example, images are referenced indirectly by the name attribute of a QTextImageFormat object.

Resources are cached internally in the document. If a resource can not be found in the cache, loadResource is called to try to load the resource. loadResource should then use addResource to add the resource to the cache.

If loadResource does not load the resource, then the resourceProvider and lastly the defaultResourceProvider will be called, if set. Note that the result from the provider will not be added automatically to the cache.

See also

ResourceType resourceProvider()

revision()#
Return type:

int

Returns the document’s revision (if undo is enabled).

The revision is guaranteed to increase when a document that is not modified is edited.

rootFrame()#
Return type:

QTextFrame

Returns the document’s root frame.

setBaseUrl(url)#
Parameters:

url – QUrl

See also

baseUrl()

Setter of property baseUrlᅟ .

setBaselineOffset(baseline)#
Parameters:

baseline – float

Sets the base line as a% of font height to use in the document layout to baseline. The default value is 0. A positive value moves up the text, by the corresponding %; a negative value moves it down.

setDefaultCursorMoveStyle(style)#
Parameters:

style – CursorMoveStyle

Sets the default cursor movement style to the given style.

setDefaultFont(font)#
Parameters:

font – QFont

Sets the default font to use in the document layout.

See also

defaultFont()

Setter of property defaultFontᅟ .

setDefaultStyleSheet(sheet)#
Parameters:

sheet – str

See also

defaultStyleSheet()

Setter of property defaultStyleSheetᅟ .

setDefaultTextOption(option)#
Parameters:

option – QTextOption

Sets the default text option to option.

setDocumentLayout(layout)#
Parameters:

layout – QAbstractTextDocumentLayout

Sets the document to use the given layout. The previous layout is deleted.

setDocumentMargin(margin)#
Parameters:

margin – float

See also

documentMargin()

Setter of property documentMarginᅟ .

setHtml(html)#
Parameters:

html – str

Replaces the entire contents of the document with the given HTML-formatted text in the html string. The undo/redo history is reset when this function is called.

The HTML formatting is respected as much as possible; for example, “<b>bold</b> text” will produce text where the first word has a font weight that gives it a bold appearance: “bold text”.

To select a css media rule other than the default “screen” rule, use setMetaInformation() with ‘ CssMedia ‘ as “info” parameter.

Note

It is the responsibility of the caller to make sure that the text is correctly decoded when a QString containing HTML is created and passed to setHtml().

See also

setPlainText() Supported HTML Subset setMetaInformation()

setIndentWidth(width)#
Parameters:

width – float

Sets the width used for text list and text block indenting.

The indent properties of QTextListFormat and QTextBlockFormat specify multiples of this value. The default indent width is 40 .

See also

indentWidth()

Setter of property indentWidthᅟ .

setLayoutEnabled(b)#
Parameters:

b – bool

See also

isLayoutEnabled()

Setter of property layoutEnabledᅟ .

setMarkdown(markdown[, features=QTextDocument.MarkdownFeature.MarkdownDialectGitHub])#
Parameters:

Replaces the entire contents of the document with the given Markdown-formatted text in the markdown string, with the given features supported. By default, all supported GitHub-style Markdown features are included; pass MarkdownDialectCommonMark for a more basic parse.

The Markdown formatting is respected as much as possible; for example, “*bold* text” will produce text where the first word has a font weight that gives it an emphasized appearance.

Parsing of HTML included in the markdown string is handled in the same way as in setHtml ; however, Markdown formatting inside HTML blocks is not supported.

Some features of the parser can be enabled or disabled via the features argument:

  • MarkdownNoHTML

  • Any HTML tags in the Markdown text will be discarded

The default is MarkdownDialectGitHub.

The undo/redo history is reset when this function is called.

setMaximumBlockCount(maximum)#
Parameters:

maximum – int

See also

maximumBlockCount()

Setter of property maximumBlockCountᅟ .

setMetaInformation(info, arg__2)#
Parameters:

Sets the document’s meta information of the type specified by info to the given string.

setModified([m=true])#
Parameters:

m – bool

See also

isModified()

Setter of property modifiedᅟ .

setPageSize(size)#
Parameters:

size – QSizeF

See also

pageSize()

Setter of property pageSizeᅟ .

setPlainText(text)#
Parameters:

text – str

Replaces the entire contents of the document with the given plain text. The undo/redo history is reset when this function is called.

See also

setHtml()

setSubScriptBaseline(baseline)#
Parameters:

baseline – float

Sets the default subscript’s base line as a % of font height to use in the document layout to baseline. The default value is 16.67% (1/6 of height).

setSuperScriptBaseline(baseline)#
Parameters:

baseline – float

Sets the default superscript’s base line as a % of font height to use in the document layout to baseline. The default value is 50% (1/2 of height).

setTextWidth(width)#
Parameters:

width – float

See also

textWidth()

Setter of property textWidthᅟ .

setUndoRedoEnabled(enable)#
Parameters:

enable – bool

See also

isUndoRedoEnabled()

Setter of property undoRedoEnabledᅟ .

setUseDesignMetrics(b)#
Parameters:

b – bool

See also

useDesignMetrics()

Setter of property useDesignMetricsᅟ .

size()#
Return type:

QSizeF

Getter of property sizeᅟ .

subScriptBaseline()#
Return type:

float

Returns the superscript’s base line as a % of font height used in the document layout.

superScriptBaseline()#
Return type:

float

Returns the superscript’s base line as a % of font height used in the document layout.

textWidth()#
Return type:

float

See also

setTextWidth()

Getter of property textWidthᅟ .

toHtml()#
Return type:

str

Returns a string containing an HTML representation of the document.

The content of the document specifies its encoding to be UTF-8. If you later on convert the returned html string into a byte array for transmission over a network or when saving to disk you should use QString::toUtf8() to convert the string to a QByteArray.

toMarkdown([features=QTextDocument.MarkdownFeature.MarkdownDialectGitHub])#
Parameters:

features – Combination of MarkdownFeature

Return type:

str

Returns a string containing a Markdown representation of the document with the given features, or an empty string if writing fails for any reason.

See also

setMarkdown

toPlainText()#
Return type:

str

Returns the plain text contained in the document. If you want formatting information use a QTextCursor instead.

This function returns the same as toRawText() , but will replace some unicode characters with ASCII alternatives. In particular, no-break space (U+00A0) is replaced by a regular space (U+0020), and both paragraph (U+2029) and line (U+2028) separators are replaced by line feed (U+000A). If you need the precise contents of the document, use toRawText() instead.

Note

Embedded objects, such as images, are represented by a Unicode value U+FFFC (OBJECT REPLACEMENT CHARACTER).

See also

toHtml()

toRawText()#
Return type:

str

Returns the raw text contained in the document without any formatting information. If you want formatting information use a QTextCursor instead.

See also

toPlainText()

undo()#

This is an overloaded function.

undo(cursor)
Parameters:

cursor – QTextCursor

Undoes the last editing operation on the document if undo is available. The provided cursor is positioned at the end of the location where the edition operation was undone.

See the Qt Undo Framework documentation for details.

undoAvailable(arg__1)#
Parameters:

arg__1 – bool

This signal is emitted whenever undo operations become available (available is true) or unavailable (available is false).

See the Qt Undo Framework documentation for details.

undoCommandAdded()#

This signal is emitted every time a new level of undo is added to the QTextDocument .

useDesignMetrics()#
Return type:

bool

See also

setUseDesignMetrics()

Getter of property useDesignMetricsᅟ .