Man page - qwtplotrenderer(3)
Packages contains this manual
Manual
QwtPlotRenderer
NAMESYNOPSIS
Public Types
Public Member Functions
Detailed Description
Member Enumeration Documentation
enum QwtPlotRenderer::DiscardFlag
enum QwtPlotRenderer::LayoutFlag
Constructor & Destructor Documentation
QwtPlotRenderer::QwtPlotRenderer (QObject * parent = NULL) [explicit]
Member Function Documentation
QwtPlotRenderer::DiscardFlags QwtPlotRenderer::discardFlags () const
bool QwtPlotRenderer::exportTo (QwtPlot * plot, const QString &documentName, const QSizeF & sizeMM = QSizeF( 300, 200 ), intresolution = 85)
QwtPlotRenderer::LayoutFlags QwtPlotRenderer::layoutFlags () const
void QwtPlotRenderer::render (QwtPlot * plot, QPainter * painter, constQRectF & plotRect) const [virtual]
void QwtPlotRenderer::renderCanvas (const QwtPlot * plot, QPainter *painter, const QRectF & canvasRect, const QwtScaleMap * maps) const[virtual]
void QwtPlotRenderer::renderDocument (QwtPlot * plot, const QString &fileName, const QSizeF & sizeMM, int resolution = 85)
void QwtPlotRenderer::renderDocument (QwtPlot * plot, const QString &fileName, const QString & format, const QSizeF & sizeMM, int resolution= 85)
void QwtPlotRenderer::renderFooter (const QwtPlot * plot, QPainter *painter, const QRectF & footerRect) const [virtual]
void QwtPlotRenderer::renderLegend (const QwtPlot * plot, QPainter *painter, const QRectF & legendRect) const [virtual]
void QwtPlotRenderer::renderScale (const QwtPlot * plot, QPainter *painter, int axisId, int startDist, int endDist, int baseDist, constQRectF & scaleRect) const [virtual]
void QwtPlotRenderer::renderTitle (const QwtPlot * plot, QPainter *painter, const QRectF & titleRect) const [virtual]
void QwtPlotRenderer::renderTo (QwtPlot * plot, QPrinter & printer) const
void QwtPlotRenderer::renderTo (QwtPlot * plot, QPaintDevice & paintDevice)const
void QwtPlotRenderer::setDiscardFlag (DiscardFlag flag, bool on = true)
void QwtPlotRenderer::setDiscardFlags (DiscardFlags flags)
void QwtPlotRenderer::setLayoutFlag (LayoutFlag flag, bool on = true)
void QwtPlotRenderer::setLayoutFlags (LayoutFlags flags)
bool QwtPlotRenderer::testDiscardFlag (DiscardFlag flag) const
bool QwtPlotRenderer::testLayoutFlag (LayoutFlag flag) const
Author
NAME
QwtPlotRenderer - Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice.
SYNOPSIS
#include <qwt_plot_renderer.h>
Inherits QObject.
Public Types
enum
DiscardFlag
{
DiscardNone
= 0x00,
DiscardBackground
= 0x01,
DiscardTitle
= 0x02,
DiscardLegend
= 0x04,
DiscardCanvasBackground
= 0x08,
DiscardFooter
= 0x10,
DiscardCanvasFrame
= 0x20 }
Disard flags.
enum
LayoutFlag
{
DefaultLayout
= 0x00,
FrameWithScales
= 0x01 }
Layout flags.
typedef QFlags<
DiscardFlag
>
DiscardFlags
Disard flags.
typedef QFlags<
LayoutFlag
>
LayoutFlags
Layout flags.
Public Member Functions
QwtPlotRenderer
(QObject *=NULL)
virtual
ĖQwtPlotRenderer
()
Destructor.
void
setDiscardFlag
(
DiscardFlag
flag, bool
on=true)
bool
testDiscardFlag
(
DiscardFlag
flag) const
void
setDiscardFlags
(
DiscardFlags
flags)
DiscardFlags discardFlags
() const
void
setLayoutFlag
(
LayoutFlag
flag, bool
on=true)
bool
testLayoutFlag
(
LayoutFlag
flag) const
void
setLayoutFlags
(
LayoutFlags
flags)
LayoutFlags layoutFlags
() const
void
renderDocument
(
QwtPlot
*, const QString
&fileName, const QSizeF &sizeMM, int resolution=85)
void
renderDocument
(
QwtPlot
*, const QString
&fileName, const QString &format, const QSizeF
&sizeMM, int resolution=85)
void
renderTo
(
QwtPlot
*, QPrinter &)
const
Render the plot to a QPrinter.
void
renderTo
(
QwtPlot
*, QPaintDevice &)
const
Render the plot to a
QPaintDevice
.
virtual void
render
(
QwtPlot
*, QPainter *,
const QRectF &plotRect) const
virtual void
renderTitle
(const
QwtPlot
*,
QPainter *, const QRectF &titleRect) const
virtual void
renderFooter
(const
QwtPlot
*,
QPainter *, const QRectF &footerRect) const
virtual void
renderScale
(const
QwtPlot
*,
QPainter *, int axisId, int startDist, int endDist, int
baseDist, const QRectF &scaleRect) const
Paint a scale into a given rectangle. Paint the scale into a
given rectangle.
virtual void
renderCanvas
(const
QwtPlot
*,
QPainter *, const QRectF &canvasRect, const
QwtScaleMap
*maps) const
virtual void
renderLegend
(const
QwtPlot
*,
QPainter *, const QRectF &legendRect) const
bool
exportTo
(
QwtPlot
*, const QString
&documentName, const QSizeF &sizeMM=QSizeF(300,
200), int resolution=85)
Execute a file dialog and render the plot to the selected
file.
Detailed Description
Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice.
Member Enumeration Documentation
enum QwtPlotRenderer::DiscardFlag
Disard flags.
Enumerator
DiscardNone
Render all components of the plot.
DiscardBackground
Donāt render the background of the plot.
DiscardTitle
Donāt render the title of the plot.
DiscardLegend
Donāt render the legend of the plot.
DiscardCanvasBackground
Donāt render the background of the canvas.
DiscardFooter
Donāt render the footer of the plot.
DiscardCanvasFrame
Donāt render the frame of the canvas
Note:
This flag has no effect when using style sheets, where the frame is part of the background
enum QwtPlotRenderer::LayoutFlag
Layout flags.
See also:
setLayoutFlag() , testLayoutFlag()
Enumerator
DefaultLayout
Use the default layout as on screen.
FrameWithScales
Instead of the scales a box is painted around the plot canvas, where the scale ticks are aligned to.
Constructor & Destructor Documentation
QwtPlotRenderer::QwtPlotRenderer (QObject * parent = NULL) [explicit]
Constructor
Parameters:
parent Parent object
Member Function Documentation
QwtPlotRenderer::DiscardFlags QwtPlotRenderer::discardFlags () const
Returns:
Flags, indicating what to discard from rendering
See also:
DiscardFlag , setDiscardFlags() , setDiscardFlag() , testDiscardFlag()
bool QwtPlotRenderer::exportTo (QwtPlot * plot, const QString &documentName, const QSizeF & sizeMM = QSizeF( 300, 200 ), intresolution = 85)
Execute a file dialog and render the plot to the selected file.
Parameters:
plot
Plot widget
documentName
Default document name
sizeMM
Size for the document in millimeters.
resolution
Resolution in dots per Inch (dpi)
Returns:
True, when exporting was successful
See also:
renderDocument()
QwtPlotRenderer::LayoutFlags QwtPlotRenderer::layoutFlags () const
Returns:
Layout flags
See also:
LayoutFlag , setLayoutFlags() , setLayoutFlag() , testLayoutFlag()
void QwtPlotRenderer::render (QwtPlot * plot, QPainter * painter, constQRectF & plotRect) const [virtual]
Paint the contents of a QwtPlot instance into a given rectangle.
Parameters:
plot
Plot to be rendered
painter
Painter
plotRect
Bounding rectangle
See also:
renderDocument() , renderTo() , QwtPainter::setRoundingAlignment()
void QwtPlotRenderer::renderCanvas (const QwtPlot * plot, QPainter *painter, const QRectF & canvasRect, const QwtScaleMap * maps) const[virtual]
Render the canvas into a given rectangle.
Parameters:
plot
Plot widget
painter
Painter
maps
Maps mapping between plot and paint device
coordinates
canvasRect
Canvas rectangle
void QwtPlotRenderer::renderDocument (QwtPlot * plot, const QString &fileName, const QSizeF & sizeMM, int resolution = 85)
Render a plot to a file
The format of the document will be auto-detected from the suffix of the file name.
Parameters:
plot
Plot widget
fileName
Path of the file, where the document will be
stored
sizeMM
Size for the document in millimeters.
resolution
Resolution in dots per Inch (dpi)
void QwtPlotRenderer::renderDocument (QwtPlot * plot, const QString &fileName, const QString & format, const QSizeF & sizeMM, int resolution= 85)
Render a plot to a file
Supported formats are:
|
ā¢ |
|
Portable Document Format PDF
|
ā¢ |
ps |
Postcript
|
ā¢ |
svg |
Scalable Vector Graphics SVG
|
ā¢ |
all image formats supported by Qt |
see QImageWriter::supportedImageFormats()
Scalable vector graphic formats like PDF or SVG are superior to raster graphics formats.
Parameters:
plot
Plot widget
fileName
Path of the file, where the document will be
stored
format
Format for the document
sizeMM
Size for the document in millimeters.
resolution
Resolution in dots per Inch (dpi)
See also:
renderTo() , render() , QwtPainter::setRoundingAlignment()
void QwtPlotRenderer::renderFooter (const QwtPlot * plot, QPainter *painter, const QRectF & footerRect) const [virtual]
Render the footer into a given rectangle.
Parameters:
plot
Plot widget
painter
Painter
footerRect
Bounding rectangle for the footer
void QwtPlotRenderer::renderLegend (const QwtPlot * plot, QPainter *painter, const QRectF & legendRect) const [virtual]
Render the legend into a given rectangle.
Parameters:
plot
Plot widget
painter
Painter
legendRect
Bounding rectangle for the legend
void QwtPlotRenderer::renderScale (const QwtPlot * plot, QPainter *painter, int axisId, int startDist, int endDist, int baseDist, constQRectF & scaleRect) const [virtual]
Paint a scale into a given rectangle. Paint the scale into a given rectangle.
Parameters:
plot
Plot widget
painter
Painter
axisId
Axis
startDist
Start border distance
endDist
End border distance
baseDist
Base distance
scaleRect
Bounding rectangle for the scale
void QwtPlotRenderer::renderTitle (const QwtPlot * plot, QPainter *painter, const QRectF & titleRect) const [virtual]
Render the title into a given rectangle.
Parameters:
plot
Plot widget
painter
Painter
titleRect
Bounding rectangle for the title
void QwtPlotRenderer::renderTo (QwtPlot * plot, QPrinter & printer) const
Render the plot to a QPrinter. This function renders the contents of a QwtPlot instance to QPaintDevice object. The size is derived from the printer metrics.
Parameters:
plot
Plot to be rendered
printer
Printer to paint on
See also:
renderDocument() , render() , QwtPainter::setRoundingAlignment()
void QwtPlotRenderer::renderTo (QwtPlot * plot, QPaintDevice & paintDevice)const
Render the plot to a QPaintDevice . This function renders the contents of a QwtPlot instance to QPaintDevice object. The target rectangle is derived from its device metrics.
Parameters:
plot
Plot to be rendered
paintDevice
device to paint on, f.e a QImage
See also:
renderDocument() , render() , QwtPainter::setRoundingAlignment()
void QwtPlotRenderer::setDiscardFlag (DiscardFlag flag, bool on = true)
Change a flag, indicating what to discard from rendering
Parameters:
flag
Flag to change
on
On/Off
See also:
DiscardFlag , testDiscardFlag() , setDiscardFlags() , discardFlags()
void QwtPlotRenderer::setDiscardFlags (DiscardFlags flags)
Set the flags, indicating what to discard from rendering
Parameters:
flags Flags
See also:
DiscardFlag , setDiscardFlag() , testDiscardFlag() , discardFlags()
void QwtPlotRenderer::setLayoutFlag (LayoutFlag flag, bool on = true)
Change a layout flag
Parameters:
flag
Flag to change
on
On/Off
See also:
LayoutFlag , testLayoutFlag() , setLayoutFlags() , layoutFlags()
void QwtPlotRenderer::setLayoutFlags (LayoutFlags flags)
Set the layout flags
Parameters:
flags Flags
See also:
LayoutFlag , setLayoutFlag() , testLayoutFlag() , layoutFlags()
bool QwtPlotRenderer::testDiscardFlag (DiscardFlag flag) const
Returns:
True, if flag is enabled.
Parameters:
flag Flag to be tested
See also:
DiscardFlag , setDiscardFlag() , setDiscardFlags() , discardFlags()
bool QwtPlotRenderer::testLayoutFlag (LayoutFlag flag) const
Returns:
True, if flag is enabled.
Parameters:
flag Flag to be tested
See also:
LayoutFlag , setLayoutFlag() , setLayoutFlags() , layoutFlags()
Author
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