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

# QwtColumnSymbol(3)

A drawing primitive for columns.

## NAME

QwtColumnSymbol - A drawing primitive for columns.

## SYNOPSIS

`#include <qwt_column_symbol.h>`

### Public Types

enum **Style** { **NoStyle** = -1, **Box**, **UserStyle** = 1000 }\
 enum **FrameStyle** { **NoFrame**, **Plain**, **Raised** }\

### Public Member Functions

**QwtColumnSymbol** (**Style**=**NoStyle**)\
 virtual **~QwtColumnSymbol** ()\
 Destructor.  void **setFrameStyle** (**FrameStyle**)\
 **FrameStyle** **frameStyle** () const\
 void **setLineWidth** (int width)\
 int **lineWidth** () const\
 void **setPalette** (const QPalette &)\
 const QPalette & **palette** () const\
 void **setStyle** (**Style**)\
 **Style** **style** () const\
 virtual void **draw** (QPainter \*, const **QwtColumnRect** &) const\

### Protected Member Functions

void **drawBox** (QPainter \*, const **QwtColumnRect** &) const\

## Detailed Description

A drawing primitive for columns.

## Member Enumeration Documentation

### enum QwtColumnSymbol::FrameStyle

Frame Style used in Box **style()**.

**See also:**

**Style**, **setFrameStyle()**, **frameStyle()**, **setStyle()**, **setPalette()**

**Enumerator**

- *NoFrame*

  *No frame.*

- *Plain*

  *A plain frame style.*

- *Raised*

  *A raised frame style.*

### enum QwtColumnSymbol::Style

*Style*

**See also:**

**setStyle()***,* **style()**

**Enumerator**

- *NoStyle*

  *No Style, the symbol draws nothing.*

- *Box*

  *The column is painted with a frame depending on the* **frameStyle()** *and* **lineWidth()** *using the* **palette()***.*

- *UserStyle*

  *Styles \>=* **QwtColumnSymbol::UserStyle** *are reserved for derived classes of* **QwtColumnSymbol** *that overload* **draw()** *with additional application specific symbol types.*

## Constructor & Destructor Documentation

### QwtColumnSymbol::QwtColumnSymbol (Style style = NoStyle)

*Constructor*

**Parameters:**

*style Style of the symbol*

**See also:**

**setStyle()***,* **style()***,* **Style**

## Member Function Documentation

### void QwtColumnSymbol::draw (QPainter \* painter, const QwtColumnRect & rect) const` [virtual]`

*Draw the symbol depending on its style.*

**Parameters:**

*painter Painter* \
 *rect Directed rectangle*

**See also:**

**drawBox()**

### void QwtColumnSymbol::drawBox (QPainter \* painter, const QwtColumnRect & rect) const` [protected]`

*Draw the symbol when it is in Box style.*

**Parameters:**

*painter Painter* \
 *rect Directed rectangle*

**See also:**

**draw()**

### QwtColumnSymbol::FrameStyle QwtColumnSymbol::frameStyle () const

**Returns:**

*Current frame style, that is used for the Box style.*

**See also:**

**setFrameStyle()***,* **lineWidth()***,* **setStyle()**

### int QwtColumnSymbol::lineWidth () const

**Returns:**

*Line width of the frame, that is used for the Box style.*

**See also:**

**setLineWidth()***,* **frameStyle()***,* **setStyle()**

### const QPalette & QwtColumnSymbol::palette () const

**Returns:**

*Current palette*

**See also:**

**setPalette()**

### void QwtColumnSymbol::setFrameStyle (FrameStyle frameStyle)

*Set the frame, that is used for the Box style.*

**Parameters:**

*frameStyle Frame style*

**See also:**

**frameStyle()***,* **setLineWidth()***,* **setStyle()**

### void QwtColumnSymbol::setLineWidth (int width)

*Set the line width of the frame, that is used for the Box style.*

**Parameters:**

*width Width*

**See also:**

**lineWidth()***,* **setFrameStyle()**

### void QwtColumnSymbol::setPalette (const QPalette & palette)

*Assign a palette for the symbol*

**Parameters:**

*palette Palette*

**See also:**

**palette()***,* **setStyle()**

### void QwtColumnSymbol::setStyle (Style style)

*Specify the symbol style*

**Parameters:**

*style Style*

**See also:**

**style()***,* **setPalette()**

### QwtColumnSymbol::Style QwtColumnSymbol::style () const

**Returns:**

*Current symbol style*

**See also:**

**setStyle()**

## Author

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