---
name: "QwtRichTextEngine"
section: "3"
platform: "linux"
package: "libqwt-doc"
version: "6.1.4-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/QwtRichTextEngine"
---

# QwtRichTextEngine(3)

A text engine for Qt rich texts.

## NAME

QwtRichTextEngine - A text engine for Qt rich texts.

## SYNOPSIS

`#include <qwt_text_engine.h>`

Inherits **QwtTextEngine**.

### Public Member Functions

**QwtRichTextEngine** ()\
 Constructor.  virtual double **heightForWidth** (const QFont &font, int flags, const QString &text, double width) const\
 virtual QSizeF **textSize** (const QFont &font, int flags, const QString &text) const\
 virtual void **draw** (QPainter \*painter, const QRectF &rect, int flags, const QString &text) const\
 virtual bool **mightRender** (const QString &) const\
 virtual void **textMargins** (const QFont &, const QString &, double &left, double &right, double &top, double &bottom) const\

### Additional Inherited Members

## Detailed Description

A text engine for Qt rich texts.

**QwtRichTextEngine** renders Qt rich texts using the classes of the Scribe framework of Qt.

## Member Function Documentation

### void QwtRichTextEngine::draw (QPainter \* painter, const QRectF & rect, int flags, const QString & text) const` [virtual]`

Draw the text in a clipping rectangle

**Parameters:**

*painter* Painter \
 *rect* Clipping rectangle \
 *flags* Bitwise OR of the flags like in for QPainter::drawText() \
 *text* Text to be rendered

Implements **QwtTextEngine**.

### double QwtRichTextEngine::heightForWidth (const QFont & font, int flags, const QString & text, double width) const` [virtual]`

Find the height for a given width

**Parameters:**

*font* Font of the text \
 *flags* Bitwise OR of the flags used like in QPainter::drawText() \
 *text* Text to be rendered \
 *width* Width

**Returns:**

Calculated height

Implements **QwtTextEngine**.

### bool QwtRichTextEngine::mightRender (const QString & text) const` [virtual]`

Test if a string can be rendered by this text engine

**Parameters:**

*text* Text to be tested

**Returns:**

Qt::mightBeRichText(text);

Implements **QwtTextEngine**.

### void QwtRichTextEngine::textMargins (const QFont &, const QString &, double & left, double & right, double & top, double & bottom) const` [virtual]`

Return margins around the texts

**Parameters:**

*left* Return 0 \
 *right* Return 0 \
 *top* Return 0 \
 *bottom* Return 0

Implements **QwtTextEngine**.

### QSizeF QwtRichTextEngine::textSize (const QFont & font, int flags, const QString & text) const` [virtual]`

Returns the size, that is needed to render text

**Parameters:**

*font* Font of the text \
 *flags* Bitwise OR of the flags used like in QPainter::drawText() \
 *text* Text to be rendered

**Returns:**

Calculated size

Implements **QwtTextEngine**.

## Author

Generated automatically by Doxygen for Qwt User's Guide from the source code.