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# QPlainTextDocumentLayout Class Reference
[QtGui module]

The QPlainTextDocumentLayout class implements a plain text layout for QTextDocument More...

     #include <QPlainTextDocumentLayout>

Inherits QAbstractTextDocumentLayout.

- List of all members, including inherited members

### Public Functions

- QPlainTextDocumentLayout ( QTextDocument * document )
- ~QPlainTextDocumentLayout ()
- void ensureBlockLayout ( const QTextBlock & block ) const
- void requestUpdate ()

- 12 public functions inherited from QAbstractTextDocumentLayout
- 29 public functions inherited from QObject

### Additional Inherited Members

- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 4 signals inherited from QAbstractTextDocumentLayout
- 1 signal inherited from QObject
- 5 static public members inherited from QObject
- 5 protected functions inherited from QAbstractTextDocumentLayout
- 7 protected functions inherited from QObject

## Detailed Description

The QPlainTextDocumentLayout class implements a plain text layout for QTextDocument

A QPlainTextDocumentLayout is required for text documents that can be display or edited in a QPlainTextEdit. See QTextDocument::setDocumentLayout().

QPlainTextDocumentLayout uses the QAbstractTextDocumentLayout API that QTextDocument requires, but redefines it partially in order to support plain text better. For instances, it does not operate on vertical pixels, but on paragraphs (called blocks) instead. The height of a document is identical to the number of paragraphs it contains. The layout also doesn't support tables or nested frames, or any sort of advanced text layout that goes beyond a list of paragraphs with syntax highlighting.

## Member Function Documentation

### QPlainTextDocumentLayout::QPlainTextDocumentLayout ( QTextDocument * document )

Constructs a plain text document layout for the text document.

### QPlainTextDocumentLayout::~QPlainTextDocumentLayout ()

Destructs a plain text document layout.

### void QPlainTextDocumentLayout::ensureBlockLayout ( const QTextBlock & block ) const

Ensures that block has a valid layout

### void QPlainTextDocumentLayout::requestUpdate ()

Requests a complete update on all views.