QwtGraphic(3)

📦

version 6.3.0 · 4 versions

6.3.0 · alpine 3.24 (latest)
6.1.5 · epel 9
6.2.0 · epel 10, fedora 43, fedora 44
6.1.4 · debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute

🦋 QwtGraphic — scalable-graphics royalty 🦋

okay bestie, this is the QwtGraphic(3) page from the Library Functions Manual, part 1 of 2. We're talking about the QwtGraphic class, and it is literally giving paint-device-for-scalable-graphics energy. No cap, we're keeping every flag, signature, default, enum, line number and warning. ✨

✨ NAME ✨

QwtGraphic — a paint device for scalable graphics. 💅

🌸 SYNOPSIS 🌸

#include <qwt_graphic.h>

Inherits QwtNullPaintDevice.

🎀 Public Types

enum RenderHint { RenderPensUnscaled = 0x1 }
enum CommandType { VectorData = 1 << 0, RasterData = 1 << 1, Transformation = 1 << 2 }
typedef QFlags< RenderHint > RenderHints
typedef QFlags< CommandType > CommandTypes

Public Types inherited from QwtNullPaintDevice:

enum Mode { NormalMode, PolygonPathMode, PathMode } — Render mode.

🌟 Public Member Functions

QwtGraphic () — Constructor.
QwtGraphic (const QwtGraphic &) — Copy constructor.
virtual ~QwtGraphic () — Destructor.
QwtGraphic & operator= (const QwtGraphic &) — Assignment operator.
void reset () — Clear all stored commands.
bool isNull () const
bool isEmpty () const
CommandTypes commandTypes () const
void render (QPainter *) const — Replay all recorded painter commands.
void render (QPainter *, const QSizeF &, Qt::AspectRatioMode=Qt::IgnoreAspectRatio) const — Replay all recorded painter commands.
void render (QPainter *, const QPointF &, Qt::Alignment=Qt::AlignTop|Qt::AlignLeft) const — Replay all recorded painter commands.
void render (QPainter *, const QRectF &, Qt::AspectRatioMode=Qt::IgnoreAspectRatio) const — Replay all recorded painter commands.
QPixmap toPixmap (qreal devicePixelRatio=0.0) const — Convert the graphic to a QPixmap.
QPixmap toPixmap (const QSize &, Qt::AspectRatioMode=Qt::IgnoreAspectRatio, qreal devicePixelRatio=0.0) const — Convert the graphic to a QPixmap.
QImage toImage (qreal devicePixelRatio=0.0) const — Convert the graphic to a QImage.
QImage toImage (const QSize &, Qt::AspectRatioMode=Qt::IgnoreAspectRatio, qreal devicePixelRatio=0.0) const — Convert the graphic to a QImage.
QRectF scaledBoundingRect (qreal sx, qreal sy) const — Calculate the target rectangle for scaling the graphic.
QRectF boundingRect () const
QRectF controlPointRect () const
const QVector< QwtPainterCommand > & commands () const
void setCommands (const QVector< QwtPainterCommand > &) — Append paint commands.
void setDefaultSize (const QSizeF &) — Set a default size.
QSizeF defaultSize () const — Default size.
qreal heightForWidth (qreal width) const
qreal widthForHeight (qreal height) const
void setRenderHint (RenderHint, bool on=true)
bool testRenderHint (RenderHint) const
RenderHints renderHints () const

Public Member Functions inherited from QwtNullPaintDevice:

QwtNullPaintDevice () — Constructor.
virtual ~QwtNullPaintDevice () — Destructor.
void setMode (Mode)
Mode mode () const
virtual QPaintEngine * paintEngine () const override — See QPaintDevice::paintEngine().
virtual int metric (PaintDeviceMetric) const override
virtual void drawRects (const QRect *, int) — See QPaintEngine::drawRects().
virtual void drawRects (const QRectF *, int) — See QPaintEngine::drawRects().
virtual void drawLines (const QLine *, int) — See QPaintEngine::drawLines().
virtual void drawLines (const QLineF *, int) — See QPaintEngine::drawLines().
virtual void drawEllipse (const QRectF &) — See QPaintEngine::drawEllipse().
virtual void drawEllipse (const QRect &) — See QPaintEngine::drawEllipse().
virtual void drawPoints (const QPointF *, int) — See QPaintEngine::drawPoints().
virtual void drawPoints (const QPoint *, int) — See QPaintEngine::drawPoints().
virtual void drawPolygon (const QPointF *, int, QPaintEngine::PolygonDrawMode) — See QPaintEngine::drawPolygon().
virtual void drawPolygon (const QPoint *, int, QPaintEngine::PolygonDrawMode) — See QPaintEngine::drawPolygon().
virtual void drawTextItem (const QPointF &, const QTextItem &) — See QPaintEngine::drawTextItem().
virtual void drawTiledPixmap (const QRectF &, const QPixmap &, const QPointF &) — See QPaintEngine::drawTiledPixmap().

🔒 Protected Member Functions

virtual QSize sizeMetrics () const override
virtual void drawPath (const QPainterPath &) override
virtual void drawPixmap (const QRectF &, const QPixmap &, const QRectF &) override — Store a pixmap command in the command list.
virtual void drawImage (const QRectF &, const QImage &, const QRectF &, Qt::ImageConversionFlags) override — Store a image command in the command list.
virtual void updateState (const QPaintEngineState &) override — Store a state command in the command list.

🌈 Detailed Description 🌈

A paint device for scalable graphics. 💖

QwtGraphic is the representation of a graphic that is tailored for scalability. Like QPicture, it will be initialized by QPainter operations and can be replayed later to any target paint device. 🎨

While the usual image representations QImage and QPixmap are not scalable, Qt offers two paint devices that might be candidates for representing a vector graphic:

QPicture — unfortunately QPicture had been forgotten when Qt4 introduced floating point based render engines. Its API is still on integers, what make it unusable for proper scaling. 😭
QSvgRenderer/QSvgGenerator — unfortunately QSvgRenderer hides too much information about its nodes in internal APIs that are necessary for proper layout calculations. Also it is derived from QObject and can't be copied like QImage/QPixmap.

QwtGraphic maps all scalable drawing primitives to a QPainterPath and stores them together with the painter state changes (pen, brush, transformation ...) in a list of QwtPaintCommands. For being a complete QPaintDevice, it also stores pixmaps or images, what is somehow against the idea of the class, because these objects can't be scaled without a loss in quality. lowkey tragic, but facts.

The main issue about scaling a QwtGraphic object are the pens used for drawing the outlines of the painter paths. While non cosmetic pens (QPen::isCosmetic()) are scaled with the same ratio as the path, cosmetic pens have a fixed width. A graphic might have paths with different pens — cosmetic and non-cosmetic. 🖊️

QwtGraphic caches 2 different rectangles:

control point rectangle — The control point rectangle is the bounding rectangle of all control point rectangles of the painter paths, or the target rectangle of the pixmaps/images.
bounding rectangle — The bounding rectangle extends the control point rectangle by what is needed for rendering the outline with an unscaled pen.

Because the offset for drawing the outline depends on the shape of the painter path (the peak of a triangle is different than the flat side), scaling with a fixed aspect ratio always needs to be calculated from the control point rectangle. 📐

See also: QwtPainterCommand

📍 Definition at line 75 of file qwt_graphic.h.

🎀 Member Typedef Documentation 🎀

`typedef QFlags<CommandType > QwtGraphic::CommandTypes`

An ORed combination of CommandType values. 🫶

Definition at line 117 of file qwt_graphic.h.

`typedef QFlags<RenderHint > QwtGraphic::RenderHints`

An ORed combination of RenderHint values. ✨

Definition at line 99 of file qwt_graphic.h.

🧚 Member Enumeration Documentation 🧚

`enum QwtGraphic::CommandType`

Indicator if the graphic contains a specific type of painter command. 👑

See also: CommandTypes, commandTypes();

Enumerator:

VectorData — The graphic contains scalable vector data.
RasterData — The graphic contains raster data (QPixmap or QImage).
Transformation — The graphic contains transformations beyond simple translations.

Definition at line 105 of file qwt_graphic.h.

`enum QwtGraphic::RenderHint`

Hint how to render a graphic. 🎨

See also: setRenderHint(), testRenderHint()

Enumerator:

RenderPensUnscaled — When rendering a QwtGraphic a specific scaling between the controlPointRect() and the coordinates of the target rectangle is set up internally in render().

When RenderPensUnscaled is set this specific scaling is applied for the control points only, but not for the pens. All other painter transformations (set up by application code) are supposed to work like usual. 💅

See also: render();

Definition at line 82 of file qwt_graphic.h.

🌸 Constructor & Destructor Documentation 🌸

`QwtGraphic::QwtGraphic ()`

Constructor. Initializes a null graphic. 🐣

See also: isNull()

Definition at line 355 of file qwt_graphic.cpp.

`QwtGraphic::QwtGraphic (const QwtGraphic & other)`

Copy constructor. 📋

Parameters:

other — Source

See also: operator=()

Definition at line 367 of file qwt_graphic.cpp.

`QwtGraphic::~QwtGraphic () [virtual]`

Destructor. 💀

Definition at line 374 of file qwt_graphic.cpp.

💖 Member Function Documentation 💖

`QRectF QwtGraphic::boundingRect () const`

The bounding rectangle is the controlPointRect() extended by the areas needed for rendering the outlines with unscaled pens. 🖼️

Returns: Bounding rectangle of the graphic

See also: controlPointRect(), scaledBoundingRect()

Definition at line 477 of file qwt_graphic.cpp.

`const QVector< QwtPainterCommand > & QwtGraphic::commands () const`

Returns: List of recorded paint commands

See also: setCommands()

Definition at line 1131 of file qwt_graphic.cpp.

`QwtGraphic::CommandTypes QwtGraphic::commandTypes () const`

Returns: Types of painter commands being used

Definition at line 430 of file qwt_graphic.cpp.

`QRectF QwtGraphic::controlPointRect () const`

The control point rectangle is the bounding rectangle of all control points of the paths and the target rectangles of the images/pixmaps. 🎯

Returns: Control point rectangle

See also: boundingRect(), scaledBoundingRect()

Definition at line 493 of file qwt_graphic.cpp.

`QSizeF QwtGraphic::defaultSize () const`

Default size. When a non empty size has been assigned by setDefaultSize() this size will be returned. Otherwise the default size is the size of the bounding rectangle. 📏

The default size is used in all methods rendering the graphic, where no size is explicitly specified.

Returns: Default size

See also: setDefaultSize(), boundingRect()

Definition at line 574 of file qwt_graphic.cpp.

🖼️ `drawImage` — image command time

void QwtGraphic::drawImage (const QRectF & rect, const QImage & image, const QRectF & subRect, Qt::ImageConversionFlags flags) [override], [protected],  [virtual]

Store a image command in the command list. 🫶

rect — the target rectangle (where it lands)
image — the Image to be painted
subRect — the Reactangle of the pixmap to be painted 💅
flags — image conversion flags

See also QPaintEngine::drawImage()

Reimplemented from QwtNullPaintDevice.

Definition at line 1059 of file qwt_graphic.cpp.

`void QwtGraphic::drawPath (const QPainterPath & path)` — [override], [protected], [virtual]

Stores a path command straight into the command list ✨

path — the painter path

See also QPaintEngine::drawPath()

Reimplemented from QwtNullPaintDevice.

Definition at line 995 of file qwt_graphic.cpp.

`void QwtGraphic::drawPixmap (const QRectF & rect, const QPixmap & pixmap, const QRectF & subRect)` — [override], [protected], [virtual]

Stores a pixmap command in the command list 🎀

rect — target rectangle
pixmap — the pixmap being painted
subRect — Reactangle of the pixmap to be painted

See also QPaintEngine::drawPixmap()

Reimplemented from QwtNullPaintDevice.

Definition at line 1034 of file qwt_graphic.cpp.

`qreal QwtGraphic::heightForWidth (qreal width) const`

Finds the height for a given width 🔥

The height gets calculated using the aspect ratio of defaultSize().

width — the width

Returns the calculated height

See also defaultSize()

Definition at line 592 of file qwt_graphic.cpp.

`bool QwtGraphic::isEmpty () const`

Returns True when the bounding rectangle is empty 🫶

See also boundingRect(), isNull()

Definition at line 422 of file qwt_graphic.cpp.

`bool QwtGraphic::isNull () const`

Returns True when no painter commands have been stored — like, nothing at all, bestie 💀

See also isEmpty(), commands()

Definition at line 413 of file qwt_graphic.cpp.

`QwtGraphic & QwtGraphic::operator= (const QwtGraphic & other)`

The assignment operator 🦋

other — the source

Returns a reference to this object

Definition at line 385 of file qwt_graphic.cpp.

`void QwtGraphic::render (QPainter * painter) const`

Replays all the recorded painter commands 🎬

painter — Qt painter

Definition at line 624 of file qwt_graphic.cpp.

`void QwtGraphic::render (QPainter * painter, const QPointF & pos, Qt::Alignment alignment = Qt::AlignTop | Qt::AlignLeft) const`

Replays all recorded painter commands. The graphic gets scaled to the defaultSize() and aligned to a position 🌸

painter — Qt painter
pos — reference point, where to render
alignment — flags for how to align the target rectangle to pos.

Definition at line 762 of file qwt_graphic.cpp.

`void QwtGraphic::render (QPainter * painter, const QRectF & rect, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio) const`

Replays all recorded painter commands. The graphic is scaled to fit into the given rectangle ✨

painter — Qt painter
rect — rectangle for the scaled graphic
aspectRatioMode — mode for how to scale — see Qt::AspectRatioMode

Definition at line 676 of file qwt_graphic.cpp.

`void QwtGraphic::render (QPainter * painter, const QSizeF & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio) const`

Replays all recorded painter commands. The graphic is scaled to fit into the rectangle of the given size, starting at ( 0, 0 ) 👑

painter — Qt painter
size — size for the scaled graphic
aspectRatioMode — mode for how to scale — see Qt::AspectRatioMode

Definition at line 660 of file qwt_graphic.cpp.

`QwtGraphic::RenderHints QwtGraphic::renderHints () const`

Returns the render hints 💅

Definition at line 464 of file qwt_graphic.cpp.

`void QwtGraphic::reset ()`

Clears all stored commands — poof, gone, no cap 🧹

See also isNull()

Definition at line 397 of file qwt_graphic.cpp.

`QRectF QwtGraphic::scaledBoundingRect (qreal sx, qreal sy) const`

Calculates the target rectangle for scaling the graphic 🎯

sx — horizontal scaling factor
sy — vertical scaling factor

Note: for paths that are painted with a cosmetic pen (see QPen::isCosmetic()) the target rectangle is different from just multiplying the bounding rectangle. little heads up, bestie 🙈

Returns the scaled bounding rectangle

See also boundingRect(), controlPointRect()

Definition at line 514 of file qwt_graphic.cpp.

`void QwtGraphic::setCommands (const QVector< QwtPainterCommand > & commands)`

Appends paint commands 📥

commands — paint commands

See also commands()

Definition at line 1142 of file qwt_graphic.cpp.

`void QwtGraphic::setDefaultSize (const QSizeF & size)`

Sets a default size. The default size is used in every method that renders the graphic where no size is explicitly specified. Assigning an empty size means the default size will be calculated from the bounding rectangle 🌈

The default setting is an empty size.

size — default size

See also defaultSize(), boundingRect()

Definition at line 553 of file qwt_graphic.cpp.

`void QwtGraphic::setRenderHint (RenderHint hint, bool on = true)`

Toggles a render hint 🔘

hint — render hint
on — true/false

See also testRenderHint(), RenderHint

Definition at line 443 of file qwt_graphic.cpp.

`QSize QwtGraphic::sizeMetrics () const` — [override], [protected], [virtual]

Returns the ceiled defaultSize() 📐

Implements QwtNullPaintDevice.

Definition at line 533 of file qwt_graphic.cpp.

`bool QwtGraphic::testRenderHint (RenderHint hint) const`

Tests a render hint 🔍

hint — render hint

Returns true/false

See also setRenderHint(), RenderHint

Definition at line 458 of file qwt_graphic.cpp.

`QImage QwtGraphic::toImage (const QSize & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio, qreal devicePixelRatio = 0.0) const`

Converts the graphic to a QImage 🖼️ All pixels of the image get initialized by 0 (transparent) before the graphic is scaled and rendered on it.

The format of the image is QImage::Format_ARGB32_Premultiplied.

size — size of the image (will be multiplied by the devicePixelRatio)
aspectRatioMode — aspect ratio for how to scale the graphic
devicePixelRatio — device pixel ratio for the image. If devicePixelRatio <= 0.0 the pixmap is initialized with the system default.

Returns the graphic as image

See also toPixmap(), render()

Definition at line 907 of file qwt_graphic.cpp.

`QImage QwtGraphic::toImage (qreal devicePixelRatio = 0.0) const`

Converts the graphic to a QImage. All pixels of the image get initialized by 0 (transparent) before the graphic is scaled and rendered on it 💖

The format of the image is QImage::Format_ARGB32_Premultiplied.

The size of the image is the default size (ceiled to integers) of the graphic multiplied by the devicePixelRatio.

devicePixelRatio — device pixel ratio for the image. If devicePixelRatio <= 0.0 the pixmap is initialized with the system default.

Returns the graphic as image in default size

See also defaultSize(), toPixmap(), render()

Definition at line 953 of file qwt_graphic.cpp.

`QPixmap QwtGraphic::toPixmap (const QSize & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio, qreal devicePixelRatio = 0.0) const`

Converts the graphic to a QPixmap 🌟 All pixels of the pixmap get initialized by Qt::transparent before the graphic is scaled and rendered on it.

size — size of the image
aspectRatioMode — aspect ratio for how to scale the graphic
devicePixelRatio — device pixel ratio for the pixmap. If devicePixelRatio <= 0.0 the pixmap is initialized with the system default.

Returns the graphic as pixmap

See also toImage(), render()

Definition at line 863 of file qwt_graphic.cpp.

`QPixmap QwtGraphic::toPixmap (qreal devicePixelRatio = 0.0) const`

Converts the graphic to a QPixmap 🎀 All pixels of the pixmap get initialized by Qt::transparent before the graphic is scaled and rendered on it.

The size of the pixmap is the default size (ceiled to integers) of the graphic.

devicePixelRatio — device pixel ratio for the pixmap. If devicePixelRatio <= 0.0 the pixmap is initialized with the system default.

Returns the graphic as pixmap in default size

See also defaultSize(), toImage(), render()

Definition at line 812 of file qwt_graphic.cpp.

`void QwtGraphic::updateState (const QPaintEngineState & state)` — [override], [protected], [virtual]

Stores a state command in the command list 💾

state — state to be stored

See also QPaintEngine::updateState()

Reimplemented from QwtNullPaintDevice.

Definition at line 1081 of file qwt_graphic.cpp.

`qreal QwtGraphic::widthForHeight (qreal height) const`

Finds the width for a given height ✨

The width gets calculated using the aspect ratio of defaultSize().

height — height

Returns the calculated width

See also defaultSize()

Definition at line 611 of file qwt_graphic.cpp.

💜 AUTHOR 💜

Generated automatically by Doxygen for Qwt User's Guide from the source code. yeah, our girl Doxygen wrote this entire thing for us, absolutely iconic of her 🫶

and that's the whole page bestie, we did it 🌈 the guide comes from the Qwt User's Guide and it's dated QwtGraphic(3) — go forth and render, mwah 💅🎀

📦 where this page comes from

alpine 3.24: qwt-doc 6.3.0-r0 · custom
💖 girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on 2026-11-04: a language model's rewrite of the original, under its terms

QwtGraphic(3)

🦋 QwtGraphic — scalable-graphics royalty 🦋

✨ NAME ✨

🌸 SYNOPSIS 🌸

🎀 Public Types

🌟 Public Member Functions

🔒 Protected Member Functions

🌈 Detailed Description 🌈

🎀 Member Typedef Documentation 🎀

typedef QFlags<CommandType > QwtGraphic::CommandTypes

typedef QFlags<RenderHint > QwtGraphic::RenderHints

🧚 Member Enumeration Documentation 🧚

enum QwtGraphic::CommandType

enum QwtGraphic::RenderHint

🌸 Constructor & Destructor Documentation 🌸

QwtGraphic::QwtGraphic ()

QwtGraphic::QwtGraphic (const QwtGraphic & other)

QwtGraphic::~QwtGraphic () [virtual]

💖 Member Function Documentation 💖

QRectF QwtGraphic::boundingRect () const

const QVector< QwtPainterCommand > & QwtGraphic::commands () const

QwtGraphic::CommandTypes QwtGraphic::commandTypes () const

QRectF QwtGraphic::controlPointRect () const

QSizeF QwtGraphic::defaultSize () const

🖼️ drawImage — image command time

void QwtGraphic::drawPath (const QPainterPath & path) — [override], [protected], [virtual]

void QwtGraphic::drawPixmap (const QRectF & rect, const QPixmap & pixmap, const QRectF & subRect) — [override], [protected], [virtual]

qreal QwtGraphic::heightForWidth (qreal width) const

bool QwtGraphic::isEmpty () const

bool QwtGraphic::isNull () const

QwtGraphic & QwtGraphic::operator= (const QwtGraphic & other)

void QwtGraphic::render (QPainter * painter) const

void QwtGraphic::render (QPainter * painter, const QPointF & pos, Qt::Alignment alignment = Qt::AlignTop | Qt::AlignLeft) const

void QwtGraphic::render (QPainter * painter, const QRectF & rect, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio) const

void QwtGraphic::render (QPainter * painter, const QSizeF & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio) const

QwtGraphic::RenderHints QwtGraphic::renderHints () const

void QwtGraphic::reset ()

QRectF QwtGraphic::scaledBoundingRect (qreal sx, qreal sy) const

void QwtGraphic::setCommands (const QVector< QwtPainterCommand > & commands)

void QwtGraphic::setDefaultSize (const QSizeF & size)

void QwtGraphic::setRenderHint (RenderHint hint, bool on = true)

QSize QwtGraphic::sizeMetrics () const — [override], [protected], [virtual]

bool QwtGraphic::testRenderHint (RenderHint hint) const

QImage QwtGraphic::toImage (const QSize & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio, qreal devicePixelRatio = 0.0) const

QImage QwtGraphic::toImage (qreal devicePixelRatio = 0.0) const

QPixmap QwtGraphic::toPixmap (const QSize & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio, qreal devicePixelRatio = 0.0) const

QPixmap QwtGraphic::toPixmap (qreal devicePixelRatio = 0.0) const

void QwtGraphic::updateState (const QPaintEngineState & state) — [override], [protected], [virtual]

qreal QwtGraphic::widthForHeight (qreal height) const

💜 AUTHOR 💜

`typedef QFlags<CommandType > QwtGraphic::CommandTypes`

`typedef QFlags<RenderHint > QwtGraphic::RenderHints`

`enum QwtGraphic::CommandType`

`enum QwtGraphic::RenderHint`

`QwtGraphic::QwtGraphic ()`

`QwtGraphic::QwtGraphic (const QwtGraphic & other)`

`QwtGraphic::~QwtGraphic () [virtual]`

`QRectF QwtGraphic::boundingRect () const`

`const QVector< QwtPainterCommand > & QwtGraphic::commands () const`

`QwtGraphic::CommandTypes QwtGraphic::commandTypes () const`

`QRectF QwtGraphic::controlPointRect () const`

`QSizeF QwtGraphic::defaultSize () const`

🖼️ `drawImage` — image command time

`void QwtGraphic::drawPath (const QPainterPath & path)` — [override], [protected], [virtual]

`void QwtGraphic::drawPixmap (const QRectF & rect, const QPixmap & pixmap, const QRectF & subRect)` — [override], [protected], [virtual]

`qreal QwtGraphic::heightForWidth (qreal width) const`

`bool QwtGraphic::isEmpty () const`

`bool QwtGraphic::isNull () const`

`QwtGraphic & QwtGraphic::operator= (const QwtGraphic & other)`

`void QwtGraphic::render (QPainter * painter) const`

`void QwtGraphic::render (QPainter * painter, const QPointF & pos, Qt::Alignment alignment = Qt::AlignTop | Qt::AlignLeft) const`

`void QwtGraphic::render (QPainter * painter, const QRectF & rect, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio) const`

`void QwtGraphic::render (QPainter * painter, const QSizeF & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio) const`

`QwtGraphic::RenderHints QwtGraphic::renderHints () const`

`void QwtGraphic::reset ()`

`QRectF QwtGraphic::scaledBoundingRect (qreal sx, qreal sy) const`

`void QwtGraphic::setCommands (const QVector< QwtPainterCommand > & commands)`

`void QwtGraphic::setDefaultSize (const QSizeF & size)`

`void QwtGraphic::setRenderHint (RenderHint hint, bool on = true)`

`QSize QwtGraphic::sizeMetrics () const` — [override], [protected], [virtual]

`bool QwtGraphic::testRenderHint (RenderHint hint) const`

`QImage QwtGraphic::toImage (const QSize & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio, qreal devicePixelRatio = 0.0) const`

`QImage QwtGraphic::toImage (qreal devicePixelRatio = 0.0) const`

`QPixmap QwtGraphic::toPixmap (const QSize & size, Qt::AspectRatioMode aspectRatioMode = Qt::IgnoreAspectRatio, qreal devicePixelRatio = 0.0) const`

`QPixmap QwtGraphic::toPixmap (qreal devicePixelRatio = 0.0) const`

`void QwtGraphic::updateState (const QPaintEngineState & state)` — [override], [protected], [virtual]

`qreal QwtGraphic::widthForHeight (qreal height) const`