QTextEdit

The QTextEdit class provides a widget that is used to edit and display both plain and rich text. More…

Inherited by: QTextBrowser

Synopsis

Functions

• def acceptRichText ()

• def alignment ()

• def anchorAt (pos)

• def autoFormatting ()

• def canPaste ()

• def createStandardContextMenu ()

• def createStandardContextMenu (position)

• def currentCharFormat ()

• def currentFont ()

• def cursorForPosition (pos)

• def cursorRect ()

• def cursorRect (cursor)

• def cursorWidth ()

• def document ()

• def documentTitle ()

• def ensureCursorVisible ()

• def extraSelections ()

• def find (exp[, options=QTextDocument.FindFlags()])

• def find (exp[, options=QTextDocument.FindFlags()])

• def fontFamily ()

• def fontItalic ()

• def fontPointSize ()

• def fontUnderline ()

• def fontWeight ()

• def inputMethodQuery (query, argument)

• def isReadOnly ()

• def isUndoRedoEnabled ()

• def lineWrapColumnOrWidth ()

• def lineWrapMode ()

• def mergeCurrentCharFormat (modifier)

• def moveCursor (operation[, mode=QTextCursor.MoveAnchor])

• def overwriteMode ()

• def placeholderText ()

• def print_ (printer)

• def setAcceptRichText (accept)

• def setAutoFormatting (features)

• def setCurrentCharFormat (format)

• def setCursorWidth (width)

• def setDocument (document)

• def setDocumentTitle (title)

• def setExtraSelections (selections)

• def setLineWrapColumnOrWidth (w)

• def setLineWrapMode (mode)

• def setOverwriteMode (overwrite)

• def setPlaceholderText (placeholderText)

• def setReadOnly (ro)

• def setTabChangesFocus (b)

• def setTabStopDistance (distance)

• def setTextCursor (cursor)

• def setTextInteractionFlags (flags)

• def setUndoRedoEnabled (enable)

• def setWordWrapMode (policy)

• def tabChangesFocus ()

• def tabStopDistance ()

• def textBackgroundColor ()

• def textColor ()

• def textCursor ()

• def textInteractionFlags ()

• def toHtml ()

• def toMarkdown ([features=QTextDocument.MarkdownDialectGitHub])

• def toPlainText ()

• def wordWrapMode ()

• def zoomInF (range)

Virtual functions

• def canInsertFromMimeData (source)

• def createMimeDataFromSelection ()

• def doSetTextCursor (cursor)

• def insertFromMimeData (source)

• def loadResource (type, name)

Slots

• def append (text)

• def clear ()

• def copy ()

• def cut ()

• def insertHtml (text)

• def insertPlainText (text)

• def paste ()

• def redo ()

• def scrollToAnchor (name)

• def selectAll ()

• def setAlignment (a)

• def setCurrentFont (f)

• def setFontFamily (fontFamily)

• def setFontItalic (b)

• def setFontPointSize (s)

• def setFontUnderline (b)

• def setFontWeight (w)

• def setHtml (text)

• def setMarkdown (markdown)

• def setPlainText (text)

• def setText (text)

• def setTextBackgroundColor (c)

• def setTextColor (c)

• def undo ()

• def zoomIn ([range=1])

• def zoomOut ([range=1])

Signals

• def copyAvailable (b)

• def currentCharFormatChanged (format)

• def cursorPositionChanged ()

• def redoAvailable (b)

• def selectionChanged ()

• def textChanged ()

• def undoAvailable (b)

Detailed Description

Introduction and Concepts

QTextEdit is an advanced WYSIWYG viewer/editor supporting rich text formatting using HTML-style tags, or Markdown format. It is optimized to handle large documents and to respond quickly to user input.

QTextEdit works on paragraphs and characters. A paragraph is a formatted string which is word-wrapped to fit into the width of the widget. By default when reading plain text, one newline signifies a paragraph. A document consists of zero or more paragraphs. The words in the paragraph are aligned in accordance with the paragraph’s alignment. Paragraphs are separated by hard line breaks. Each character within a paragraph has its own attributes, for example, font and color.

QTextEdit can display images, lists and tables. If the text is too large to view within the text edit’s viewport, scroll bars will appear. The text edit can load both plain text and rich text files. Rich text can be described using a subset of HTML 4 markup; refer to the Supported HTML Subset page for more information.

If you just need to display a small piece of rich text use QLabel .

The rich text support in Qt is designed to provide a fast, portable and efficient way to add reasonable online help facilities to applications, and to provide a basis for rich text editors. If you find the HTML support insufficient for your needs you may consider the use of Qt WebKit, which provides a full-featured web browser widget.

The shape of the mouse cursor on a QTextEdit is IBeamCursor by default. It can be changed through the viewport() ‘s cursor property.

Using QTextEdit as a Display Widget

QTextEdit can display a large HTML subset, including tables and images.

The text can be set or replaced using setHtml() which deletes any existing text and replaces it with the text passed in the setHtml() call. If you call setHtml() with legacy HTML, and then call toHtml() , the text that is returned may have different markup, but will render the same. The entire text can be deleted with clear() .

Text can also be set or replaced using setMarkdown() , and the same caveats apply: if you then call toMarkdown() , the text that is returned may be different, but the meaning is preserved as much as possible. Markdown with some embedded HTML can be parsed, with the same limitations that setHtml() has; but toMarkdown() only writes “pure” Markdown, without any embedded HTML.

Text itself can be inserted using the QTextCursor class or using the convenience functions insertHtml() , insertPlainText() , append() or paste() . QTextCursor is also able to insert complex objects like tables or lists into the document, and it deals with creating selections and applying changes to selected text.

By default the text edit wraps words at whitespace to fit within the text edit widget. The setLineWrapMode() function is used to specify the kind of line wrap you want, or NoWrap if you don’t want any wrapping. Call setLineWrapMode() to set a fixed pixel width FixedPixelWidth , or character column (e.g. 80 column) FixedColumnWidth with the pixels or columns specified with setLineWrapColumnOrWidth() . If you use word wrap to the widget’s width WidgetWidth , you can specify whether to break on whitespace or anywhere with setWordWrapMode() .

The find() function can be used to find and select a given string within the text.

If you want to limit the total number of paragraphs in a QTextEdit , as for example it is often useful in a log viewer, then you can use QTextDocument ‘s maximumBlockCount property for that.

Read-only Key Bindings

When QTextEdit is used read-only the key bindings are limited to navigation, and text may only be selected with the mouse:

Keypresses	Action
Up	Moves one line up.
Down	Moves one line down.
Left	Moves one character to the left.
Right	Moves one character to the right.
PageUp	Moves one (viewport) page up.
PageDown	Moves one (viewport) page down.
Home	Moves to the beginning of the text.
End	Moves to the end of the text.
Alt+Wheel	Scrolls the page horizontally (the Wheel is the mouse wheel).
Ctrl+Wheel	Zooms the text.
Ctrl+A	Selects all text.

The text edit may be able to provide some meta-information. For example, the documentTitle() function will return the text from within HTML <title> tags.

Note

Zooming into HTML documents only works if the font-size is not set to a fixed size.

Using QTextEdit as an Editor

All the information about using QTextEdit as a display widget also applies here.

The current char format’s attributes are set with setFontItalic() , setFontWeight() , setFontUnderline() , setFontFamily() , setFontPointSize() , setTextColor() and setCurrentFont() . The current paragraph’s alignment is set with setAlignment() .

Selection of text is handled by the QTextCursor class, which provides functionality for creating selections, retrieving the text contents or deleting selections. You can retrieve the object that corresponds with the user-visible cursor using the textCursor() method. If you want to set a selection in QTextEdit just create one on a QTextCursor object and then make that cursor the visible cursor using setTextCursor() . The selection can be copied to the clipboard with copy() , or cut to the clipboard with cut() . The entire text can be selected using selectAll() .

When the cursor is moved and the underlying formatting attributes change, the currentCharFormatChanged() signal is emitted to reflect the new attributes at the new cursor position.

The textChanged() signal is emitted whenever the text changes (as a result of setText() or through the editor itself).

QTextEdit holds a QTextDocument object which can be retrieved using the document() method. You can also set your own document object using setDocument() .

QTextDocument provides an isModified() function which will return true if the text has been modified since it was either loaded or since the last call to setModified with false as argument. In addition it provides methods for undo and redo.

Drag and Drop

QTextEdit also supports custom drag and drop behavior. By default, QTextEdit will insert plain text, HTML and rich text when the user drops data of these MIME types onto a document. Reimplement canInsertFromMimeData() and insertFromMimeData() to add support for additional MIME types.

For example, to allow the user to drag and drop an image onto a QTextEdit , you could the implement these functions in the following way:

def canInsertFromMimeData(self, QMimeData source ):

    if (source.hasImage())
        return True
else:
        return QTextEdit.canInsertFromMimeData(source)

We add support for image MIME types by returning true. For all other MIME types, we use the default implementation.

def insertFromMimeData(self, source):

    if (source.hasImage())

        image = qvariant_cast<QImage>(source.imageData())
        cursor = self.textCursor()
        document = self.document()
        document.addResource(QTextDocument.ImageResource, QUrl("image"), image)
        cursor.insertImage("image")

We unpack the image from the QVariant held by the MIME source and insert it into the document as a resource.

Editing Key Bindings

The list of key bindings which are implemented for editing:

Keypresses	Action
Backspace	Deletes the character to the left of the cursor.
Delete	Deletes the character to the right of the cursor.
Ctrl+C	Copy the selected text to the clipboard.
Ctrl+Insert	Copy the selected text to the clipboard.
Ctrl+K	Deletes to the end of the line.
Ctrl+V	Pastes the clipboard text into text edit.
Shift+Insert	Pastes the clipboard text into text edit.
Ctrl+X	Deletes the selected text and copies it to the clipboard.
Shift+Delete	Deletes the selected text and copies it to the clipboard.
Ctrl+Z	Undoes the last operation.
Ctrl+Y	Redoes the last operation.
Left	Moves the cursor one character to the left.
Ctrl+Left	Moves the cursor one word to the left.
Right	Moves the cursor one character to the right.
Ctrl+Right	Moves the cursor one word to the right.
Up	Moves the cursor one line up.
Down	Moves the cursor one line down.
PageUp	Moves the cursor one page up.
PageDown	Moves the cursor one page down.
Home	Moves the cursor to the beginning of the line.
Ctrl+Home	Moves the cursor to the beginning of the text.
End	Moves the cursor to the end of the line.
Ctrl+End	Moves the cursor to the end of the text.
Alt+Wheel	Scrolls the page horizontally (the Wheel is the mouse wheel).

To select (mark) text hold down the Shift key whilst pressing one of the movement keystrokes, for example, Shift+Right will select the character to the right, and Shift+Ctrl+Right will select the word to the right, etc.

See also

QTextDocument QTextCursor Qt Widgets - Application Example Syntax Highlighter Example Rich Text Processing

class PySide6.QtWidgets.QTextEdit([parent=None])

PySide6.QtWidgets.QTextEdit(text[, parent=None])

Parameters

• text – str

• parent – PySide6.QtWidgets.QWidget

Constructs an empty QTextEdit with parent parent.

Constructs a QTextEdit with parent parent. The text edit will display the text text. The text is interpreted as html.

PySide6.QtWidgets.QTextEdit.LineWrapMode

Constant	Description
QTextEdit.NoWrap
QTextEdit.WidgetWidth
QTextEdit.FixedPixelWidth
QTextEdit.FixedColumnWidth

PySide6.QtWidgets.QTextEdit.AutoFormattingFlag

Constant	Description
QTextEdit.AutoNone	Don’t do any automatic formatting.
QTextEdit.AutoBulletList	Automatically create bullet lists (e.g. when the user enters an asterisk (’*’) in the left most column, or presses Enter in an existing list item.
QTextEdit.AutoAll	Apply all automatic formatting. Currently only automatic bullet lists are supported.

PySide6.QtWidgets.QTextEdit.acceptRichText()

Return type

bool

This property holds whether the text edit accepts rich text insertions by the user.

When this propery is set to false text edit will accept only plain text input from the user. For example through clipboard or drag and drop.

This property’s default is true.

PySide6.QtWidgets.QTextEdit.alignment()

Return type

Alignment

Returns the alignment of the current paragraph.

See also

setAlignment()

PySide6.QtWidgets.QTextEdit.anchorAt(pos)

Parameters

pos – PySide6.QtCore.QPoint

Return type

str

Returns the reference of the anchor at position pos, or an empty string if no anchor exists at that point.

PySide6.QtWidgets.QTextEdit.append(text)

Parameters

text – str

Appends a new paragraph with text to the end of the text edit.

Note

The new paragraph appended will have the same character format and block format as the current paragraph, determined by the position of the cursor.

See also

currentCharFormat() blockFormat()

PySide6.QtWidgets.QTextEdit.autoFormatting()

Return type

AutoFormatting

This property holds the enabled set of auto formatting features.

The value can be any combination of the values in the AutoFormattingFlag enum. The default is AutoNone . Choose AutoAll to enable all automatic formatting.

Currently, the only automatic formatting feature provided is AutoBulletList ; future versions of Qt may offer more.

PySide6.QtWidgets.QTextEdit.canInsertFromMimeData(source)

Parameters

source – PySide6.QtCore.QMimeData

Return type

bool

This function returns true if the contents of the MIME data object, specified by source, can be decoded and inserted into the document. It is called for example when during a drag operation the mouse enters this widget and it is necessary to determine whether it is possible to accept the drag and drop operation.

Reimplement this function to enable drag and drop support for additional MIME types.

PySide6.QtWidgets.QTextEdit.canPaste()

Return type

bool

Returns whether text can be pasted from the clipboard into the textedit.

PySide6.QtWidgets.QTextEdit.clear()

Deletes all the text in the text edit.

Notes:

• The undo/redo history is also cleared.

• currentCharFormat() is reset, unless textCursor() is already at the beginning of the document.

See also

cut() setPlainText() setHtml()

PySide6.QtWidgets.QTextEdit.copy()

Copies any selected text to the clipboard.

See also

copyAvailable()

PySide6.QtWidgets.QTextEdit.copyAvailable(b)

Parameters

b – bool

PySide6.QtWidgets.QTextEdit.createMimeDataFromSelection()

Return type

PySide6.QtCore.QMimeData

This function returns a new MIME data object to represent the contents of the text edit’s current selection. It is called when the selection needs to be encapsulated into a new QMimeData object; for example, when a drag and drop operation is started, or when data is copied to the clipboard.

If you reimplement this function, note that the ownership of the returned QMimeData object is passed to the caller. The selection can be retrieved by using the textCursor() function.

PySide6.QtWidgets.QTextEdit.createStandardContextMenu()

Return type

PySide6.QtWidgets.QMenu

This function creates the standard context menu which is shown when the user clicks on the text edit with the right mouse button. It is called from the default contextMenuEvent() handler. The popup menu’s ownership is transferred to the caller.

We recommend that you use the ( QPoint ) version instead which will enable the actions that are sensitive to where the user clicked.

PySide6.QtWidgets.QTextEdit.createStandardContextMenu(position)

Parameters

position – PySide6.QtCore.QPoint

Return type

PySide6.QtWidgets.QMenu

This function creates the standard context menu which is shown when the user clicks on the text edit with the right mouse button. It is called from the default contextMenuEvent() handler and it takes the position in document coordinates where the mouse click was. This can enable actions that are sensitive to the position where the user clicked. The popup menu’s ownership is transferred to the caller.

PySide6.QtWidgets.QTextEdit.currentCharFormat()

Return type

PySide6.QtGui.QTextCharFormat

Returns the char format that is used when inserting new text.

See also

setCurrentCharFormat()

PySide6.QtWidgets.QTextEdit.currentCharFormatChanged(format)

Parameters

format – PySide6.QtGui.QTextCharFormat

PySide6.QtWidgets.QTextEdit.currentFont()

Return type

PySide6.QtGui.QFont

Returns the font of the current format.

See also

setCurrentFont() setFontFamily() setFontPointSize()

PySide6.QtWidgets.QTextEdit.cursorForPosition(pos)

Parameters

pos – PySide6.QtCore.QPoint

Return type

PySide6.QtGui.QTextCursor

returns a QTextCursor at position pos (in viewport coordinates).

PySide6.QtWidgets.QTextEdit.cursorPositionChanged()

PySide6.QtWidgets.QTextEdit.cursorRect()

Return type

PySide6.QtCore.QRect

returns a rectangle (in viewport coordinates) that includes the cursor of the text edit.

PySide6.QtWidgets.QTextEdit.cursorRect(cursor)

Parameters

cursor – PySide6.QtGui.QTextCursor

Return type

PySide6.QtCore.QRect

returns a rectangle (in viewport coordinates) that includes the cursor.

PySide6.QtWidgets.QTextEdit.cursorWidth()

Return type

int

This property specifies the width of the cursor in pixels. The default value is 1.

PySide6.QtWidgets.QTextEdit.cut()

Copies the selected text to the clipboard and deletes it from the text edit.

If there is no selected text nothing happens.

See also

copy() paste()

PySide6.QtWidgets.QTextEdit.doSetTextCursor(cursor)

Parameters

cursor – PySide6.QtGui.QTextCursor

PySide6.QtWidgets.QTextEdit.document()

Return type

PySide6.QtGui.QTextDocument

This property holds the underlying document of the text editor..

Note

The editor does not take ownership of the document unless it is the document’s parent object. The parent object of the provided document remains the owner of the object. If the previously assigned document is a child of the editor then it will be deleted.

PySide6.QtWidgets.QTextEdit.documentTitle()

Return type

str

This property holds the title of the document parsed from the text..

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

PySide6.QtWidgets.QTextEdit.ensureCursorVisible()

Ensures that the cursor is visible by scrolling the text edit if necessary.

PySide6.QtWidgets.QTextEdit.extraSelections()

Return type

Returns previously set extra selections.

See also

setExtraSelections()

PySide6.QtWidgets.QTextEdit.find(exp[, options=QTextDocument.FindFlags()])

Parameters

• exp – PySide6.QtCore.QRegularExpression

• options – FindFlags

Return type

bool

This is an overloaded function.

Finds the next occurrence, matching the regular expression, exp, using the given options. The FindCaseSensitively option is ignored for this overload, use CaseInsensitiveOption instead.

Returns true if a match was found and changes the cursor to select the match; otherwise returns false.

PySide6.QtWidgets.QTextEdit.find(exp[, options=QTextDocument.FindFlags()])

Parameters

• exp – str

• options – FindFlags

Return type

bool

Finds the next occurrence of the string, exp, using the given options. Returns true if exp was found and changes the cursor to select the match; otherwise returns false.

PySide6.QtWidgets.QTextEdit.fontFamily()

Return type

str

Returns the font family of the current format.

See also

setFontFamily() setCurrentFont() setFontPointSize()

PySide6.QtWidgets.QTextEdit.fontItalic()

Return type

bool

Returns true if the font of the current format is italic; otherwise returns false.

See also

setFontItalic()

PySide6.QtWidgets.QTextEdit.fontPointSize()

Return type

float

Returns the point size of the font of the current format.

See also

setFontFamily() setCurrentFont() setFontPointSize()

PySide6.QtWidgets.QTextEdit.fontUnderline()

Return type

bool

Returns true if the font of the current format is underlined; otherwise returns false.

See also

setFontUnderline()

PySide6.QtWidgets.QTextEdit.fontWeight()

Return type

int

Returns the font weight of the current format.

See also

setFontWeight() setCurrentFont() setFontPointSize() Weight

PySide6.QtWidgets.QTextEdit.inputMethodQuery(query, argument)

Parameters

• query – InputMethodQuery

• argument – object

Return type

object

PySide6.QtWidgets.QTextEdit.insertFromMimeData(source)

Parameters

source – PySide6.QtCore.QMimeData

This function inserts the contents of the MIME data object, specified by source, into the text edit at the current cursor position. It is called whenever text is inserted as the result of a clipboard paste operation, or when the text edit accepts data from a drag and drop operation.

Reimplement this function to enable drag and drop support for additional MIME types.

PySide6.QtWidgets.QTextEdit.insertHtml(text)

Parameters

text – str

Convenience slot that inserts text which is assumed to be of html formatting at the current cursor position.

It is equivalent to:

edit.textCursor().insertHtml(fragment)

Note

When using this function with a style sheet, the style sheet will only apply to the current block in the document. In order to apply a style sheet throughout a document, use setDefaultStyleSheet() instead.

PySide6.QtWidgets.QTextEdit.insertPlainText(text)

Parameters

text – str

Convenience slot that inserts text at the current cursor position.

It is equivalent to

edit.textCursor().insertText(text)

PySide6.QtWidgets.QTextEdit.isReadOnly()

Return type

bool

This property holds whether the text edit is read-only.

In a read-only text edit the user can only navigate through the text and select text; modifying the text is not possible.

This property’s default is false.

PySide6.QtWidgets.QTextEdit.isUndoRedoEnabled()

Return type

bool

This property holds whether undo and redo are enabled..

Users are only able to undo or redo actions if this property is true, and if there is an action that can be undone (or redone).

PySide6.QtWidgets.QTextEdit.lineWrapColumnOrWidth()

Return type

int

This property holds the position (in pixels or columns depending on the wrap mode) where text will be wrapped.

If the wrap mode is FixedPixelWidth , the value is the number of pixels from the left edge of the text edit at which text should be wrapped. If the wrap mode is FixedColumnWidth , the value is the column number (in character columns) from the left edge of the text edit at which text should be wrapped.

By default, this property contains a value of 0.

See also

lineWrapMode

PySide6.QtWidgets.QTextEdit.lineWrapMode()

Return type

LineWrapMode

This property holds the line wrap mode.

The default mode is WidgetWidth which causes words to be wrapped at the right edge of the text edit. Wrapping occurs at whitespace, keeping whole words intact. If you want wrapping to occur within words use setWordWrapMode() . If you set a wrap mode of FixedPixelWidth or FixedColumnWidth you should also call setLineWrapColumnOrWidth() with the width you want.

See also

lineWrapColumnOrWidth

PySide6.QtWidgets.QTextEdit.loadResource(type, name)

Parameters

• type – int

• name – PySide6.QtCore.QUrl

Return type

object

Loads the resource specified by the given type and name.

This function is an extension of loadResource() .

See also

loadResource()

PySide6.QtWidgets.QTextEdit.mergeCurrentCharFormat(modifier)

Parameters

modifier – PySide6.QtGui.QTextCharFormat

Merges the properties specified in modifier into the current character format by calling mergeCharFormat on the editor’s cursor. If the editor has a selection then the properties of modifier are directly applied to the selection.

See also

mergeCharFormat()

PySide6.QtWidgets.QTextEdit.moveCursor(operation[, mode=QTextCursor.MoveAnchor])

Parameters

• operation – MoveOperation

• mode – MoveMode

Moves the cursor by performing the given operation.

If mode is KeepAnchor , the cursor selects the text it moves over. This is the same effect that the user achieves when they hold down the Shift key and move the cursor with the cursor keys.

See also

movePosition()

PySide6.QtWidgets.QTextEdit.overwriteMode()

Return type

bool

This property holds whether text entered by the user will overwrite existing text.

As with many text editors, the text editor widget can be configured to insert or overwrite existing text with new text entered by the user.

If this property is true, existing text is overwritten, character-for-character by new text; otherwise, text is inserted at the cursor position, displacing existing text.

By default, this property is false (new text does not overwrite existing text).

PySide6.QtWidgets.QTextEdit.paste()

Pastes the text from the clipboard into the text edit at the current cursor position.

If there is no text in the clipboard nothing happens.

To change the behavior of this function, i.e. to modify what QTextEdit can paste and how it is being pasted, reimplement the virtual canInsertFromMimeData() and insertFromMimeData() functions.

See also

cut() copy()

PySide6.QtWidgets.QTextEdit.placeholderText()

Return type

str

This property holds the editor placeholder text.

Setting this property makes the editor display a grayed-out placeholder text as long as the document() is empty.

By default, this property contains an empty string.

See also

document()

PySide6.QtWidgets.QTextEdit.print_(printer)

Parameters

printer – PySide6.QtGui.QPagedPaintDevice

Convenience function to print the text edit’s document to the given printer. This is equivalent to calling the print method on the document directly except that this function also supports Selection as print range.

See also

print()

PySide6.QtWidgets.QTextEdit.redo()

Redoes the last operation.

If there is no operation to redo, i.e. there is no redo step in the undo/redo history, nothing happens.

See also

undo()

PySide6.QtWidgets.QTextEdit.redoAvailable(b)

Parameters

b – bool

PySide6.QtWidgets.QTextEdit.scrollToAnchor(name)

Parameters

name – str

Scrolls the text edit so that the anchor with the given name is visible; does nothing if the name is empty, or is already visible, or isn’t found.

PySide6.QtWidgets.QTextEdit.selectAll()

Selects all text.

See also

copy() cut() textCursor()

PySide6.QtWidgets.QTextEdit.selectionChanged()

PySide6.QtWidgets.QTextEdit.setAcceptRichText(accept)

Parameters

accept – bool

This property holds whether the text edit accepts rich text insertions by the user.

When this propery is set to false text edit will accept only plain text input from the user. For example through clipboard or drag and drop.

This property’s default is true.

PySide6.QtWidgets.QTextEdit.setAlignment(a)

Parameters

a – Alignment

Sets the alignment of the current paragraph to a. Valid alignments are AlignLeft , AlignRight , AlignJustify and AlignCenter (which centers horizontally).

See also

alignment()

PySide6.QtWidgets.QTextEdit.setAutoFormatting(features)

Parameters

features – AutoFormatting

This property holds the enabled set of auto formatting features.

The value can be any combination of the values in the AutoFormattingFlag enum. The default is AutoNone . Choose AutoAll to enable all automatic formatting.

Currently, the only automatic formatting feature provided is AutoBulletList ; future versions of Qt may offer more.

PySide6.QtWidgets.QTextEdit.setCurrentCharFormat(format)

Parameters

format – PySide6.QtGui.QTextCharFormat

Sets the char format that is be used when inserting new text to format by calling setCharFormat() on the editor’s cursor. If the editor has a selection then the char format is directly applied to the selection.

See also

currentCharFormat()

PySide6.QtWidgets.QTextEdit.setCurrentFont(f)

Parameters

f – PySide6.QtGui.QFont

Sets the font of the current format to f.

See also

currentFont() setFontPointSize() setFontFamily()

PySide6.QtWidgets.QTextEdit.setCursorWidth(width)

Parameters

width – int

This property specifies the width of the cursor in pixels. The default value is 1.

PySide6.QtWidgets.QTextEdit.setDocument(document)

Parameters

document – PySide6.QtGui.QTextDocument

This property holds the underlying document of the text editor..

Note

The editor does not take ownership of the document unless it is the document’s parent object. The parent object of the provided document remains the owner of the object. If the previously assigned document is a child of the editor then it will be deleted.

PySide6.QtWidgets.QTextEdit.setDocumentTitle(title)

Parameters

title – str

This property holds the title of the document parsed from the text..

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

PySide6.QtWidgets.QTextEdit.setExtraSelections(selections)

Parameters

selections –

This function allows temporarily marking certain regions in the document with a given color, specified as selections. This can be useful for example in a programming editor to mark a whole line of text with a given background color to indicate the existence of a breakpoint.

See also

ExtraSelection extraSelections()

PySide6.QtWidgets.QTextEdit.setFontFamily(fontFamily)

Parameters

fontFamily – str

Sets the font family of the current format to fontFamily.

See also

fontFamily() setCurrentFont()

PySide6.QtWidgets.QTextEdit.setFontItalic(b)

Parameters

b – bool

If italic is true, sets the current format to italic; otherwise sets the current format to non-italic.

See also

fontItalic()

PySide6.QtWidgets.QTextEdit.setFontPointSize(s)

Parameters

s – float

Sets the point size of the current format to s.

Note that if s is zero or negative, the behavior of this function is not defined.

See also

fontPointSize() setCurrentFont() setFontFamily()

PySide6.QtWidgets.QTextEdit.setFontUnderline(b)

Parameters

b – bool

If underline is true, sets the current format to underline; otherwise sets the current format to non-underline.

See also

fontUnderline()

PySide6.QtWidgets.QTextEdit.setFontWeight(w)

Parameters

w – int

Sets the font weight of the current format to the given weight, where the value used is in the range defined by the Weight enum.

See also

fontWeight() setCurrentFont() setFontFamily()

PySide6.QtWidgets.QTextEdit.setHtml(text)

Parameters

text – str

This property provides an HTML interface to the text of the text edit.

returns the text of the text edit as html.

changes the text of the text edit. Any previous text is removed and the undo/redo history is cleared. The input text is interpreted as rich text in html format. currentCharFormat() is also reset, unless textCursor() is already at the beginning of the document.

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 .

By default, for a newly-created, empty document, this property contains text to describe an HTML 4.0 document with no body text.

See also

Supported HTML Subset plainText

PySide6.QtWidgets.QTextEdit.setLineWrapColumnOrWidth(w)

Parameters

w – int

This property holds the position (in pixels or columns depending on the wrap mode) where text will be wrapped.

If the wrap mode is FixedPixelWidth , the value is the number of pixels from the left edge of the text edit at which text should be wrapped. If the wrap mode is FixedColumnWidth , the value is the column number (in character columns) from the left edge of the text edit at which text should be wrapped.

By default, this property contains a value of 0.

See also

lineWrapMode

PySide6.QtWidgets.QTextEdit.setLineWrapMode(mode)

Parameters

mode – LineWrapMode

This property holds the line wrap mode.

The default mode is WidgetWidth which causes words to be wrapped at the right edge of the text edit. Wrapping occurs at whitespace, keeping whole words intact. If you want wrapping to occur within words use setWordWrapMode() . If you set a wrap mode of FixedPixelWidth or FixedColumnWidth you should also call setLineWrapColumnOrWidth() with the width you want.

See also

lineWrapColumnOrWidth

PySide6.QtWidgets.QTextEdit.setMarkdown(markdown)

Parameters

markdown – str

This property provides a Markdown interface to the text of the text edit.

toMarkdown() returns the text of the text edit as “pure” Markdown, without any embedded HTML formatting. Some features that QTextDocument supports (such as the use of specific colors and named fonts) cannot be expressed in “pure” Markdown, and they will be omitted.

setMarkdown() changes the text of the text edit. Any previous text is removed and the undo/redo history is cleared. The input text is interpreted as rich text in Markdown format.

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.

See also

plainText html toMarkdown() setMarkdown()

PySide6.QtWidgets.QTextEdit.setOverwriteMode(overwrite)

Parameters

overwrite – bool

This property holds whether text entered by the user will overwrite existing text.

As with many text editors, the text editor widget can be configured to insert or overwrite existing text with new text entered by the user.

If this property is true, existing text is overwritten, character-for-character by new text; otherwise, text is inserted at the cursor position, displacing existing text.

By default, this property is false (new text does not overwrite existing text).

PySide6.QtWidgets.QTextEdit.setPlaceholderText(placeholderText)

Parameters

placeholderText – str

This property holds the editor placeholder text.

Setting this property makes the editor display a grayed-out placeholder text as long as the document() is empty.

By default, this property contains an empty string.

See also

document()

PySide6.QtWidgets.QTextEdit.setPlainText(text)

Parameters

text – str

This property holds the text editor’s contents as plain text..

Previous contents are removed and undo/redo history is reset when the property is set. currentCharFormat() is also reset, unless textCursor() is already at the beginning of the document.

If the text edit has another content type, it will not be replaced by plain text if you call toPlainText() . The only exception to this is the non-break space, nbsp;, that will be converted into standard space.

By default, for an editor with no contents, this property contains an empty string.

See also

html

PySide6.QtWidgets.QTextEdit.setReadOnly(ro)

Parameters

ro – bool

This property holds whether the text edit is read-only.

In a read-only text edit the user can only navigate through the text and select text; modifying the text is not possible.

This property’s default is false.

PySide6.QtWidgets.QTextEdit.setTabChangesFocus(b)

Parameters

b – bool

This property holds whether Tab changes focus or is accepted as input.

In some occasions text edits should not allow the user to input tabulators or change indentation using the Tab key, as this breaks the focus chain. The default is false.

PySide6.QtWidgets.QTextEdit.setTabStopDistance(distance)

Parameters

distance – float

This property holds the tab stop distance in pixels.

By default, this property contains a value of 80 pixels.

Do not set a value less than the horizontalAdvance() of the VisualTabCharacter character, otherwise the tab-character will be drawn incompletely.

See also

ShowTabsAndSpaces defaultTextOption

PySide6.QtWidgets.QTextEdit.setText(text)

Parameters

text – str

Sets the text edit’s text. The text can be plain text or HTML and the text edit will try to guess the right format.

Use setHtml() or setPlainText() directly to avoid text edit’s guessing.

See also

toPlainText() toHtml()

PySide6.QtWidgets.QTextEdit.setTextBackgroundColor(c)

Parameters

c – PySide6.QtGui.QColor

Sets the text background color of the current format to c.

See also

textBackgroundColor()

PySide6.QtWidgets.QTextEdit.setTextColor(c)

Parameters

c – PySide6.QtGui.QColor

Sets the text color of the current format to c.

See also

textColor()

PySide6.QtWidgets.QTextEdit.setTextCursor(cursor)

Parameters

cursor – PySide6.QtGui.QTextCursor

Sets the visible cursor.

See also

textCursor()

PySide6.QtWidgets.QTextEdit.setTextInteractionFlags(flags)

Parameters

flags – TextInteractionFlags

Specifies how the widget should interact with user input.

The default value depends on whether the QTextEdit is read-only or editable, and whether it is a QTextBrowser or not.

PySide6.QtWidgets.QTextEdit.setUndoRedoEnabled(enable)

Parameters

enable – bool

This property holds whether undo and redo are enabled..

Users are only able to undo or redo actions if this property is true, and if there is an action that can be undone (or redone).

PySide6.QtWidgets.QTextEdit.setWordWrapMode(policy)

Parameters

policy – WrapMode

See also

wordWrapMode()

PySide6.QtWidgets.QTextEdit.tabChangesFocus()

Return type

bool

This property holds whether Tab changes focus or is accepted as input.

In some occasions text edits should not allow the user to input tabulators or change indentation using the Tab key, as this breaks the focus chain. The default is false.

PySide6.QtWidgets.QTextEdit.tabStopDistance()

Return type

float

This property holds the tab stop distance in pixels.

By default, this property contains a value of 80 pixels.

Do not set a value less than the horizontalAdvance() of the VisualTabCharacter character, otherwise the tab-character will be drawn incompletely.

See also

ShowTabsAndSpaces defaultTextOption

PySide6.QtWidgets.QTextEdit.textBackgroundColor()

Return type

PySide6.QtGui.QColor

Returns the text background color of the current format.

See also

setTextBackgroundColor()

PySide6.QtWidgets.QTextEdit.textChanged()

PySide6.QtWidgets.QTextEdit.textColor()

Return type

PySide6.QtGui.QColor

Returns the text color of the current format.

See also

setTextColor()

PySide6.QtWidgets.QTextEdit.textCursor()

Return type

PySide6.QtGui.QTextCursor

Returns a copy of the QTextCursor that represents the currently visible cursor. Note that changes on the returned cursor do not affect QTextEdit ‘s cursor; use setTextCursor() to update the visible cursor.

See also

setTextCursor()

PySide6.QtWidgets.QTextEdit.textInteractionFlags()

Return type

TextInteractionFlags

Specifies how the widget should interact with user input.

The default value depends on whether the QTextEdit is read-only or editable, and whether it is a QTextBrowser or not.

PySide6.QtWidgets.QTextEdit.toHtml()

Return type

str

This property provides an HTML interface to the text of the text edit.

returns the text of the text edit as html.

changes the text of the text edit. Any previous text is removed and the undo/redo history is cleared. The input text is interpreted as rich text in html format. currentCharFormat() is also reset, unless textCursor() is already at the beginning of the document.

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 .

By default, for a newly-created, empty document, this property contains text to describe an HTML 4.0 document with no body text.

See also

Supported HTML Subset plainText

PySide6.QtWidgets.QTextEdit.toMarkdown([features=QTextDocument.MarkdownDialectGitHub])

Parameters

features – MarkdownFeatures

Return type

str

PySide6.QtWidgets.QTextEdit.toPlainText()

Return type

str

This property holds the text editor’s contents as plain text..

Previous contents are removed and undo/redo history is reset when the property is set. currentCharFormat() is also reset, unless textCursor() is already at the beginning of the document.

If the text edit has another content type, it will not be replaced by plain text if you call toPlainText() . The only exception to this is the non-break space, nbsp;, that will be converted into standard space.

By default, for an editor with no contents, this property contains an empty string.

See also

html

PySide6.QtWidgets.QTextEdit.undo()

Undoes the last operation.

If there is no operation to undo, i.e. there is no undo step in the undo/redo history, nothing happens.

See also

redo()

PySide6.QtWidgets.QTextEdit.undoAvailable(b)

Parameters

b – bool

PySide6.QtWidgets.QTextEdit.wordWrapMode()

Return type

WrapMode

See also

setWordWrapMode()

PySide6.QtWidgets.QTextEdit.zoomIn([range=1])

Parameters

range – int

Zooms in on the text by making the base font size range points larger and recalculating all font sizes to be the new size. This does not change the size of any images.

See also

zoomOut()

PySide6.QtWidgets.QTextEdit.zoomInF(range)

Parameters

range – float

PySide6.QtWidgets.QTextEdit.zoomOut([range=1])

Parameters

range – int

Zooms out on the text by making the base font size range points smaller and recalculating all font sizes to be the new size. This does not change the size of any images.

See also

zoomIn()