qwtlegenditemmanager(3) [debian man page]
QwtLegendItemManager(3) Qwt User's Guide QwtLegendItemManager(3) NAME
QwtLegendItemManager - Abstract API to bind plot items to the legend. SYNOPSIS
#include <qwt_legend_itemmanager.h> Inherited by QwtPlotItem. Public Member Functions virtual QWidget * legendItem () const =0 QwtLegendItemManager () virtual void updateLegend (QwtLegend *legend) const =0 virtual ~QwtLegendItemManager () Detailed Description Abstract API to bind plot items to the legend. Constructor &; Destructor Documentation QwtLegendItemManager::QwtLegendItemManager () [inline] Constructor. virtual QwtLegendItemManager::~QwtLegendItemManager () [inline, virtual] Destructor. Member Function Documentation virtual QWidget* QwtLegendItemManager::legendItem () const [pure virtual] Allocate the widget that represents the item on the legend Returns: Allocated widget See also: updateLegend() QwtLegend() Implemented in QwtPlotItem. virtual void QwtLegendItemManager::updateLegend (QwtLegend *legend) const [pure virtual] Update the widget that represents the item on the legend Parameters: legend Legend See also: legendItem() Implemented in QwtPlotCurve, and QwtPlotItem. Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 5.2.2 Mon Aug 1 2011 QwtLegendItemManager(3)
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QwtPlotGrid(3) Qwt User's Guide QwtPlotGrid(3) NAME
QwtPlotGrid - A class which draws a coordinate grid. SYNOPSIS
#include <qwt_plot_grid.h> Inherits QwtPlotItem. Public Types enum ItemAttribute { Legend = 1, AutoScale = 2 } enum RenderHint { RenderAntialiased = 1 } enum RttiValues { Rtti_PlotItem = 0, Rtti_PlotGrid, Rtti_PlotScale, Rtti_PlotMarker, Rtti_PlotCurve, Rtti_PlotHistogram, Rtti_PlotSpectrogram, Rtti_PlotSVG, Rtti_PlotUserItem = 1000 } Public Member Functions void attach (QwtPlot *plot) virtual QwtDoubleRect boundingRect () const void detach () virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &rect) const void enableX (bool tf) void enableXMin (bool tf) void enableY (bool tf) void enableYMin (bool tf) void hide () QwtDoubleRect invTransform (const QwtScaleMap &, const QwtScaleMap &, const QRect &) const bool isVisible () const virtual void itemChanged () virtual QWidget * legendItem () const const QPen & majPen () const const QPen & minPen () const QRect paintRect (const QwtScaleMap &, const QwtScaleMap &) const QwtPlot * plot () const QwtPlotGrid () virtual int rtti () const QwtDoubleRect scaleRect (const QwtScaleMap &, const QwtScaleMap &) const void setAxis (int xAxis, int yAxis) void setItemAttribute (ItemAttribute, bool on=true) void setMajPen (const QPen &p) void setMinPen (const QPen &p) void setPen (const QPen &p) void setRenderHint (RenderHint, bool on=true) void setTitle (const QString &title) void setTitle (const QwtText &title) virtual void setVisible (bool) void setXAxis (int axis) void setXDiv (const QwtScaleDiv &sx) void setYAxis (int axis) void setYDiv (const QwtScaleDiv &sy) void setZ (double z) void show () bool testItemAttribute (ItemAttribute) const bool testRenderHint (RenderHint) const const QwtText & title () const QRect transform (const QwtScaleMap &, const QwtScaleMap &, const QwtDoubleRect &) const virtual void updateLegend (QwtLegend *) const virtual void updateScaleDiv (const QwtScaleDiv &xMap, const QwtScaleDiv &yMap) int xAxis () const bool xEnabled () const bool xMinEnabled () const const QwtScaleDiv & xScaleDiv () const int yAxis () const bool yEnabled () const bool yMinEnabled () const const QwtScaleDiv & yScaleDiv () const double z () const virtual ~QwtPlotGrid () Detailed Description A class which draws a coordinate grid. The QwtPlotGrid class can be used to draw a coordinate grid. A coordinate grid consists of major and minor vertical and horizontal gridlines. The locations of the gridlines are determined by the X and Y scale divisions which can be assigned with setXDiv() and setYDiv(). The draw() member draws the grid within a bounding rectangle. Member Enumeration Documentation enum QwtPlotItem::ItemAttribute [inherited] Plot Item Attributes o Legend The item is represented on the legend. o AutoScale The boundingRect() of the item is included in the autoscaling calculation. See also: setItemAttribute(), testItemAttribute() enum QwtPlotItem::RenderHint [inherited] Render hints. enum QwtPlotItem::RttiValues [inherited] Runtime type information. RttiValues is used to cast plot items, without having to enable runtime type information of the compiler. Constructor &; Destructor Documentation QwtPlotGrid::QwtPlotGrid () [explicit] Enables major grid, disables minor grid. QwtPlotGrid::~QwtPlotGrid () [virtual] Destructor. Member Function Documentation void QwtPlotItem::attach (QwtPlot *plot) [inherited] Attach the item to a plot. This method will attach a QwtPlotItem to the QwtPlot argument. It will first detach the QwtPlotItem from any plot from a previous call to attach (if necessary). If a NULL argument is passed, it will detach from any QwtPlot it was attached to. Parameters: plot Plot widget See also: QwtPlotItem::detach() QwtDoubleRect QwtPlotItem::boundingRect () const [virtual, inherited] Returns: An invalid bounding rect: QwtDoubleRect(1.0, 1.0, -2.0, -2.0) Reimplemented in QwtPlotCurve, QwtPlotMarker, QwtPlotSpectrogram, and QwtPlotSvgItem. void QwtPlotItem::detach () [inline, inherited] This method detaches a QwtPlotItem from any QwtPlot it has been associated with. detach() is equivalent to calling attach( NULL ) See also: attach( QwtPlot* plot ) void QwtPlotGrid::draw (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &canvasRect) const [virtual] Draw the grid. The grid is drawn into the bounding rectangle such that gridlines begin and end at the rectangle's borders. The X and Y maps are used to map the scale divisions into the drawing region screen. Parameters: painter Painter xMap X axis map yMap Y axis canvasRect Contents rect of the plot canvas Implements QwtPlotItem. void QwtPlotGrid::enableX (booltf) Enable or disable vertical gridlines. Parameters: tf Enable (true) or disable See also: Minor gridlines can be enabled or disabled with enableXMin() void QwtPlotGrid::enableXMin (booltf) Enable or disable minor vertical gridlines. Parameters: tf Enable (true) or disable See also: enableX() void QwtPlotGrid::enableY (booltf) Enable or disable horizontal gridlines. Parameters: tf Enable (true) or disable See also: Minor gridlines can be enabled or disabled with enableYMin() void QwtPlotGrid::enableYMin (booltf) Enable or disable minor horizontal gridlines. Parameters: tf Enable (true) or disable See also: enableY() void QwtPlotItem::hide () [inherited] Hide the item. QwtDoubleRect QwtPlotItem::invTransform (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &rect) const [inherited] Transform a rectangle from paint to scale coordinates Parameters: xMap X map yMap Y map rect Rectangle in paint coordinates Returns: Rectangle in scale coordinates See also: transform() bool QwtPlotItem::isVisible () const [inherited] Returns: true if visible See also: setVisible(), show(), hide() void QwtPlotItem::itemChanged () [virtual, inherited] Update the legend and call QwtPlot::autoRefresh for the parent plot. See also: updateLegend() QWidget * QwtPlotItem::legendItem () const [virtual, inherited] Allocate the widget that represents the item on the legend. The default implementation is made for QwtPlotCurve and returns a QwtLegendItem(), but an item could be represented by any type of widget, by overloading legendItem() and updateLegend(). Returns: QwtLegendItem() See also: updateLegend() QwtLegend() Implements QwtLegendItemManager. const QPen & QwtPlotGrid::majPen () const Returns: the pen for the major gridlines See also: setMajPen(), setMinPen(), setPen() const QPen & QwtPlotGrid::minPen () const Returns: the pen for the minor gridlines See also: setMinPen(), setMajPen(), setPen() QRect QwtPlotItem::paintRect (const QwtScaleMap &xMap, const QwtScaleMap &yMap) const [inherited] Calculate the bounding paint rect of 2 maps. Parameters: xMap X map yMap X map Returns: Bounding rect of the scale maps QwtPlot * QwtPlotItem::plot () const [inherited] Return attached plot. int QwtPlotGrid::rtti () const [virtual] Returns: QwtPlotItem::Rtti_PlotGrid Reimplemented from QwtPlotItem. QwtDoubleRect QwtPlotItem::scaleRect (const QwtScaleMap &xMap, const QwtScaleMap &yMap) const [inherited] Calculate the bounding scale rect of 2 maps. Parameters: xMap X map yMap X map Returns: Bounding rect of the scale maps void QwtPlotItem::setAxis (intxAxis, intyAxis) [inherited] Set X and Y axis The item will painted according to the coordinates its Axes. Parameters: xAxis X Axis yAxis Y Axis See also: setXAxis(), setYAxis(), xAxis(), yAxis() void QwtPlotItem::setItemAttribute (ItemAttributeattribute, boolon = true) [inherited] Toggle an item attribute Parameters: attribute Attribute type on true/false See also: testItemAttribute(), ItemAttribute void QwtPlotGrid::setMajPen (const QPen &pen) Assign a pen for the major gridlines The width of non cosmetic pens is scaled according to the resolution of the paint device. Parameters: pen Pen See also: majPen(), setMinPen(), setPen(), QwtPainter::scaledPen() void QwtPlotGrid::setMinPen (const QPen &pen) Assign a pen for the minor gridlines The width of non cosmetic pens is scaled according to the resolution of the paint device. Parameters: pen Pen See also: minPen(), setMajPen(), setPen(), QwtPainter::scaledPen() void QwtPlotGrid::setPen (const QPen &pen) Assign a pen for both major and minor gridlines The width of non cosmetic pens is scaled according to the resolution of the paint device. Parameters: pen Pen See also: setMajPen(), setMinPen(), QwtPainter::scaledPen() void QwtPlotItem::setRenderHint (RenderHinthint, boolon = true) [inherited] Toggle an render hint Parameters: hint Render hint on true/false See also: testRenderHint(), RenderHint void QwtPlotItem::setTitle (const QwtText &title) [inherited] Set a new title Parameters: title Title See also: title() void QwtPlotItem::setTitle (const QString &title) [inherited] Set a new title Parameters: title Title See also: title() void QwtPlotItem::setVisible (boolon) [virtual, inherited] Show/Hide the item Parameters: on Show if true, otherwise hide See also: isVisible(), show(), hide() void QwtPlotItem::setXAxis (intaxis) [inherited] Set the X axis The item will painted according to the coordinates its Axes. Parameters: axis X Axis See also: setAxis(), setYAxis(), xAxis() void QwtPlotGrid::setXDiv (const QwtScaleDiv &scaleDiv) Assign an x axis scale division Parameters: scaleDiv Scale division void QwtPlotItem::setYAxis (intaxis) [inherited] Set the Y axis The item will painted according to the coordinates its Axes. Parameters: axis Y Axis See also: setAxis(), setXAxis(), yAxis() void QwtPlotGrid::setYDiv (const QwtScaleDiv &scaleDiv) Assign a y axis division Parameters: scaleDiv Scale division void QwtPlotItem::setZ (doublez) [inherited] Set the z value. Plot items are painted in increasing z-order. Parameters: z Z-value See also: z(), QwtPlotDict::itemList() void QwtPlotItem::show () [inherited] Show the item. bool QwtPlotItem::testItemAttribute (ItemAttributeattribute) const [inherited] Test an item attribute Parameters: attribute Attribute type Returns: true/false See also: setItemAttribute(), ItemAttribute bool QwtPlotItem::testRenderHint (RenderHinthint) const [inherited] Test a render hint Parameters: hint Render hint Returns: true/false See also: setRenderHint(), RenderHint const QwtText & QwtPlotItem::title () const [inherited] Returns: Title of the item See also: setTitle() QRect QwtPlotItem::transform (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtDoubleRect &rect) const [inherited] Transform a rectangle Parameters: xMap X map yMap Y map rect Rectangle in scale coordinates Returns: Rectangle in paint coordinates See also: invTransform() void QwtPlotItem::updateLegend (QwtLegend *legend) const [virtual, inherited] Update the widget that represents the item on the legend. updateLegend() is called from itemChanged() to adopt the widget representing the item on the legend to its new configuration. The default implementation is made for QwtPlotCurve and updates a QwtLegendItem(), but an item could be represented by any type of widget, by overloading legendItem() and updateLegend(). Parameters: legend Legend See also: legendItem(), itemChanged(), QwtLegend() Implements QwtLegendItemManager. Reimplemented in QwtPlotCurve. void QwtPlotGrid::updateScaleDiv (const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv) [virtual] Update the grid to changes of the axes scale division Parameters: xScaleDiv Scale division of the x-axis yScaleDiv Scale division of the y-axis See also: QwtPlot::updateAxes() Reimplemented from QwtPlotItem. int QwtPlotItem::xAxis () const [inherited] Return xAxis. bool QwtPlotGrid::xEnabled () const Returns: true if vertical gridlines are enabled See also: enableX() bool QwtPlotGrid::xMinEnabled () const Returns: true if minor vertical gridlines are enabled See also: enableXMin() const QwtScaleDiv & QwtPlotGrid::xScaleDiv () const Returns: the scale division of the x axis int QwtPlotItem::yAxis () const [inherited] Return yAxis. bool QwtPlotGrid::yEnabled () const Returns: true if horizontal gridlines are enabled See also: enableY() bool QwtPlotGrid::yMinEnabled () const Returns: true if minor horizontal gridlines are enabled See also: enableYMin() const QwtScaleDiv & QwtPlotGrid::yScaleDiv () const Returns: the scale division of the y axis double QwtPlotItem::z () const [inherited] Plot items are painted in increasing z-order. Returns: setZ(), QwtPlotDict::itemList() Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 5.2.2 Mon Aug 1 2011 QwtPlotGrid(3)