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qwtplotrenderer(3) [debian man page]

QwtPlotRenderer(3)						 Qwt User's Guide						QwtPlotRenderer(3)

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> Public Types enum DiscardFlag { DiscardNone = 0x00, DiscardBackground = 0x01, DiscardTitle = 0x02, DiscardLegend = 0x04, DiscardCanvasBackground = 0x08 } enum LayoutFlag { DefaultLayout = 0x00, KeepFrames = 0x01, FrameWithScales = 0x02 } typedef QFlags< DiscardFlag > DiscardFlags typedef QFlags< LayoutFlag > LayoutFlags Public Member Functions QwtPlotRenderer (QObject *=NULL) virtual ~QwtPlotRenderer () 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 &format, const QSizeF &sizeMM, int resolution=85) void renderDocument (QwtPlot *, const QString &title, const QString &format, const QSizeF &sizeMM, int resolution=85) void renderTo (QwtPlot *, QPrinter &) const void renderTo (QwtPlot *, QPaintDevice &p) const virtual void render (QwtPlot *, QPainter *, const QRectF &rect) const virtual void renderLegendItem (const QwtPlot *, QPainter *, const QWidget *, const QRectF &) const virtual void renderTitle (const QwtPlot *, QPainter *, const QRectF &) const virtual void renderScale (const QwtPlot *, QPainter *, int axisId, int startDist, int endDist, int baseDist, const QRectF &) const virtual void renderCanvas (const QwtPlot *, QPainter *, const QRectF &canvasRect, const QwtScaleMap *maps) const virtual void renderLegend (const QwtPlot *, QPainter *, const QRectF &) const Protected Member Functions void buildCanvasMaps (const QwtPlot *, const QRectF &, QwtScaleMap maps[]) const Detailed Description Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice. Member Typedef Documentation typedef QFlags<DiscardFlag> QwtPlotRenderer::DiscardFlags Disard flags. typedef QFlags<LayoutFlag> QwtPlotRenderer::LayoutFlags Layout flags. Member Enumeration Documentation enum QwtPlotRenderer::DiscardFlag Disard flags. Enumerator: DiscardNone Render all components of the plot. DiscardBackground Don't render the background of the plot. DiscardTitle Don't render the title of the plot. DiscardLegend Don't render the legend of the plot. DiscardCanvasBackground Don't render the background of the canvas. enum QwtPlotRenderer::LayoutFlag Layout flags. See also: setLayoutFlag(), testLayoutFlag() Enumerator: DefaultLayout Use the default layout without margins and frames. KeepFrames Render all frames of the plot. 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 QwtPlotRenderer::~QwtPlotRenderer () [virtual] Destructor. Member Function Documentation void QwtPlotRenderer::buildCanvasMaps (const QwtPlot *plot, const QRectF &canvasRect, QwtScaleMapmaps[]) const [protected] Calculated the scale maps for rendering the canvas Parameters: plot Plot widget canvasRect Target rectangle maps Scale maps to be calculated QwtPlotRenderer::DiscardFlags QwtPlotRenderer::discardFlags () const Returns: Flags, indicating what to discard from rendering See also: DiscardFlag, setDiscardFlags(), setDiscardFlag(), testDiscardFlag() QwtPlotRenderer::LayoutFlags QwtPlotRenderer::layoutFlags () const Returns: Layout flags See also: LayoutFlag, setLayoutFlags(), setLayoutFlag(), testLayoutFlag() void QwtPlotRenderer::render (QwtPlot *plot, QPainter *painter, const QRectF &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 *map) const [virtual] Render the canvas into a given rectangle. Parameters: plot Plot widget painter Painter map Maps mapping between plot and paint device coordinates canvasRect Canvas rectangle void QwtPlotRenderer::renderDocument (QwtPlot *plot, const QString &fileName, const QSizeF &sizeMM, intresolution = 85) Render a plot to a file The format of the document will be autodetected from the suffix of the filename. 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, intresolution = 85) Render a plot to a file Supported formats are: o pdf Portable Document Format PDF o ps Postcript o svg Scalable Vector Graphics SVG o 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::renderLegend (const QwtPlot *plot, QPainter *painter, const QRectF &rect) const [virtual] Render the legend into a given rectangle. Parameters: plot Plot widget painter Painter rect Bounding rectangle void QwtPlotRenderer::renderLegendItem (const QwtPlot *plot, QPainter *painter, const QWidget *widget, const QRectF &rect) const [virtual] Render the legend item into a given rectangle. Parameters: plot Plot widget painter Painter widget Widget representing a legend item rect Bounding rectangle Note: When widget is not derived from QwtLegendItem renderLegendItem does nothing and needs to be overloaded void QwtPlotRenderer::renderScale (const QwtPlot *plot, QPainter *painter, intaxisId, intstartDist, intendDist, intbaseDist, const QRectF &rect) 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 rect Bounding rectangle void QwtPlotRenderer::renderTitle (const QwtPlot *plot, QPainter *painter, const QRectF &rect) const [virtual] Render the title into a given rectangle. Parameters: plot Plot widget painter Painter rect Bounding rectangle 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 (DiscardFlagflag, boolon = 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 (DiscardFlagsflags) Set the flags, indicating what to discard from rendering Parameters: flags Flags See also: DiscardFlag, setDiscardFlag(), testDiscardFlag(), discardFlags() void QwtPlotRenderer::setLayoutFlag (LayoutFlagflag, boolon = true) Change a layout flag Parameters: flag Flag to change on On/Off See also: LayoutFlag, testLayoutFlag(), setLayoutFlags(), layoutFlags() void QwtPlotRenderer::setLayoutFlags (LayoutFlagsflags) Set the layout flags Parameters: flags Flags See also: LayoutFlag, setLayoutFlag(), testLayoutFlag(), layoutFlags() bool QwtPlotRenderer::testDiscardFlag (DiscardFlagflag) const Check if a flag is set. Parameters: flag Flag to be tested See also: DiscardFlag, setDiscardFlag(), setDiscardFlags(), discardFlags() bool QwtPlotRenderer::testLayoutFlag (LayoutFlagflag) const Check if a flag is set. Parameters: flag Flag to be tested See also: LayoutFlag, setLayoutFlag(), setLayoutFlags(), layoutFlags() Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 6.0.0 Fri Apr 15 2011 QwtPlotRenderer(3)
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