Classes | Public Member Functions | Private Member Functions | Private Attributes | List of all members
QwtPlotGrid Class Reference

A class which draws a coordinate grid. More...

#include <qwt_plot_grid.h>

Inheritance diagram for QwtPlotGrid:
Inheritance graph
[legend]

Classes

class  PrivateData
 

Public Member Functions

virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &rect) const
 Draw the grid. More...
 
void enableX (bool tf)
 Enable or disable vertical grid lines. More...
 
void enableXMin (bool tf)
 Enable or disable minor vertical grid lines. More...
 
void enableY (bool tf)
 Enable or disable horizontal grid lines. More...
 
void enableYMin (bool tf)
 Enable or disable minor horizontal grid lines. More...
 
const QPen & majorPen () const
 
const QPen & minorPen () const
 
 QwtPlotGrid ()
 Enables major grid, disables minor grid. More...
 
virtual int rtti () const
 
void setMajorPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
 
void setMajorPen (const QPen &)
 
void setMinorPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
 
void setMinorPen (const QPen &p)
 
void setPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
 
void setPen (const QPen &)
 
void setXDiv (const QwtScaleDiv &sx)
 
void setYDiv (const QwtScaleDiv &sy)
 
virtual void updateScaleDiv (const QwtScaleDiv &xMap, const QwtScaleDiv &yMap)
 
bool xEnabled () const
 
bool xMinEnabled () const
 
const QwtScaleDivxScaleDiv () const
 
bool yEnabled () const
 
bool yMinEnabled () const
 
const QwtScaleDivyScaleDiv () const
 
virtual ~QwtPlotGrid ()
 Destructor. More...
 
- Public Member Functions inherited from QwtPlotItem
void attach (QwtPlot *plot)
 Attach the item to a plot. More...
 
virtual QRectF boundingRect () const
 
void detach ()
 This method detaches a QwtPlotItem from any QwtPlot it has been associated with. More...
 
virtual void getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasSize, double &left, double &top, double &right, double &bottom) const
 Calculate a hint for the canvas margin. More...
 
void hide ()
 Hide the item. More...
 
bool isVisible () const
 
virtual void itemChanged ()
 
virtual void legendChanged ()
 
virtual QList< QwtLegendDatalegendData () const
 Return all information, that is needed to represent the item on the legend. More...
 
virtual QwtGraphic legendIcon (int index, const QSizeF &) const
 
QSize legendIconSize () const
 
QRectF paintRect (const QwtScaleMap &, const QwtScaleMap &) const
 Calculate the bounding paint rectangle of 2 maps. More...
 
QwtPlotplot () const
 Return attached plot. More...
 
 QwtPlotItem (const QwtText &title=QwtText())
 
uint renderThreadCount () const
 
QRectF scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
 Calculate the bounding scale rectangle of 2 maps. More...
 
void setAxes (int xAxis, int yAxis)
 
void setItemAttribute (ItemAttribute, bool on=true)
 
void setItemInterest (ItemInterest, bool on=true)
 
void setLegendIconSize (const QSize &)
 
void setRenderHint (RenderHint, bool on=true)
 
void setRenderThreadCount (uint numThreads)
 
void setTitle (const QString &title)
 
void setTitle (const QwtText &title)
 
virtual void setVisible (bool)
 
void setXAxis (int axis)
 
void setYAxis (int axis)
 
void setZ (double z)
 Set the z value. More...
 
void show ()
 Show the item. More...
 
bool testItemAttribute (ItemAttribute) const
 
bool testItemInterest (ItemInterest) const
 
bool testRenderHint (RenderHint) const
 
const QwtTexttitle () const
 
virtual void updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
 Update the item to changes of the legend info. More...
 
int xAxis () const
 Return xAxis. More...
 
int yAxis () const
 Return yAxis. More...
 
double z () const
 
virtual ~QwtPlotItem ()
 Destroy the QwtPlotItem. More...
 

Private Member Functions

void drawLines (QPainter *painter, const QRectF &, Qt::Orientation orientation, const QwtScaleMap &, const QList< double > &) const
 

Private Attributes

PrivateDatad_data
 

Additional Inherited Members

- Public Types inherited from QwtPlotItem
enum  ItemAttribute { Legend = 0x01, AutoScale = 0x02, Margins = 0x04 }
 Plot Item Attributes. More...
 
typedef QFlags< ItemAttributeItemAttributes
 Plot Item Attributes. More...
 
enum  ItemInterest { ScaleInterest = 0x01, LegendInterest = 0x02 }
 Plot Item Interests. More...
 
typedef QFlags< ItemInterestItemInterests
 Plot Item Interests. More...
 
enum  RenderHint { RenderAntialiased = 0x1 }
 Render hints. More...
 
typedef QFlags< RenderHintRenderHints
 Render hints. More...
 
enum  RttiValues {
  Rtti_PlotItem = 0, Rtti_PlotGrid, Rtti_PlotScale, Rtti_PlotLegend,
  Rtti_PlotMarker, Rtti_PlotCurve, Rtti_PlotSpectroCurve, Rtti_PlotIntervalCurve,
  Rtti_PlotHistogram, Rtti_PlotSpectrogram, Rtti_PlotSVG, Rtti_PlotTradingCurve,
  Rtti_PlotBarChart, Rtti_PlotMultiBarChart, Rtti_PlotShape, Rtti_PlotTextLabel,
  Rtti_PlotZone, Rtti_PlotUserItem = 1000
}
 Runtime type information. More...
 
- Protected Member Functions inherited from QwtPlotItem
QwtGraphic defaultIcon (const QBrush &, const QSizeF &) const
 Return a default icon from a brush. More...
 

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 grid lines. The locations of the grid lines 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.

Definition at line 34 of file qwt_plot_grid.h.

Constructor & Destructor Documentation

QwtPlotGrid::QwtPlotGrid ( )
explicit

Enables major grid, disables minor grid.

Definition at line 48 of file qwt_plot_grid.cpp.

QwtPlotGrid::~QwtPlotGrid ( )
virtual

Destructor.

Definition at line 58 of file qwt_plot_grid.cpp.

Member Function Documentation

void QwtPlotGrid::draw ( QPainter *  painter,
const QwtScaleMap xMap,
const QwtScaleMap yMap,
const QRectF &  canvasRect 
) const
virtual

Draw the grid.

The grid is drawn into the bounding rectangle such that grid lines 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
painterPainter
xMapX axis map
yMapY axis
canvasRectContents rectangle of the plot canvas

Implements QwtPlotItem.

Definition at line 282 of file qwt_plot_grid.cpp.

void QwtPlotGrid::drawLines ( QPainter *  painter,
const QRectF &  canvasRect,
Qt::Orientation  orientation,
const QwtScaleMap scaleMap,
const QList< double > &  values 
) const
private

Definition at line 327 of file qwt_plot_grid.cpp.

void QwtPlotGrid::enableX ( bool  on)

Enable or disable vertical grid lines.

Parameters
onEnable (true) or disable
See also
Minor grid lines can be enabled or disabled with enableXMin()

Definition at line 76 of file qwt_plot_grid.cpp.

void QwtPlotGrid::enableXMin ( bool  on)

Enable or disable minor vertical grid lines.

Parameters
onEnable (true) or disable
See also
enableX()

Definition at line 108 of file qwt_plot_grid.cpp.

void QwtPlotGrid::enableY ( bool  on)

Enable or disable horizontal grid lines.

Parameters
onEnable (true) or disable
See also
Minor grid lines can be enabled or disabled with enableYMin()

Definition at line 92 of file qwt_plot_grid.cpp.

void QwtPlotGrid::enableYMin ( bool  on)

Enable or disable minor horizontal grid lines.

Parameters
onEnable (true) or disable
See also
enableY()

Definition at line 124 of file qwt_plot_grid.cpp.

const QPen & QwtPlotGrid::majorPen ( ) const
Returns
the pen for the major grid lines
See also
setMajorPen(), setMinorPen(), setPen()

Definition at line 367 of file qwt_plot_grid.cpp.

const QPen & QwtPlotGrid::minorPen ( ) const
Returns
the pen for the minor grid lines
See also
setMinorPen(), setMajorPen(), setPen()

Definition at line 376 of file qwt_plot_grid.cpp.

int QwtPlotGrid::rtti ( ) const
virtual
Returns
QwtPlotItem::Rtti_PlotGrid

Reimplemented from QwtPlotItem.

Definition at line 64 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setMajorPen ( const QColor &  color,
qreal  width = 0.0,
Qt::PenStyle  style = Qt::SolidLine 
)

Build and assign a pen for both major grid lines

In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() ). This method has been introduced to hide this incompatibility.

Parameters
colorPen color
widthPen width
stylePen style
See also
pen(), brush()

Definition at line 212 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setMajorPen ( const QPen &  pen)

Assign a pen for the major grid lines

Parameters
penPen
See also
majorPen(), setMinorPen(), setPen()

Definition at line 223 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setMinorPen ( const QColor &  color,
qreal  width = 0.0,
Qt::PenStyle  style = Qt::SolidLine 
)

Build and assign a pen for the minor grid lines

In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() ). This method has been introduced to hide this incompatibility.

Parameters
colorPen color
widthPen width
stylePen style
See also
pen(), brush()

Definition at line 247 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setMinorPen ( const QPen &  pen)

Assign a pen for the minor grid lines

Parameters
penPen
See also
minorPen(), setMajorPen(), setPen()

Definition at line 258 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setPen ( const QColor &  color,
qreal  width = 0.0,
Qt::PenStyle  style = Qt::SolidLine 
)

Build and assign a pen for both major and minor grid lines

In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() ). This method has been introduced to hide this incompatibility.

Parameters
colorPen color
widthPen width
stylePen style
See also
pen(), brush()

Definition at line 176 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setPen ( const QPen &  pen)

Assign a pen for both major and minor grid lines

Parameters
penPen
See also
setMajorPen(), setMinorPen()

Definition at line 187 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setXDiv ( const QwtScaleDiv scaleDiv)

Assign an x axis scale division

Parameters
scaleDivScale division

Definition at line 140 of file qwt_plot_grid.cpp.

void QwtPlotGrid::setYDiv ( const QwtScaleDiv scaleDiv)

Assign a y axis division

Parameters
scaleDivScale division

Definition at line 154 of file qwt_plot_grid.cpp.

void QwtPlotGrid::updateScaleDiv ( const QwtScaleDiv xScaleDiv,
const QwtScaleDiv yScaleDiv 
)
virtual

Update the grid to changes of the axes scale division

Parameters
xScaleDivScale division of the x-axis
yScaleDivScale division of the y-axis
See also
QwtPlot::updateAxes()

Reimplemented from QwtPlotItem.

Definition at line 438 of file qwt_plot_grid.cpp.

bool QwtPlotGrid::xEnabled ( ) const
Returns
true if vertical grid lines are enabled
See also
enableX()

Definition at line 385 of file qwt_plot_grid.cpp.

bool QwtPlotGrid::xMinEnabled ( ) const
Returns
true if minor vertical grid lines are enabled
See also
enableXMin()

Definition at line 394 of file qwt_plot_grid.cpp.

const QwtScaleDiv & QwtPlotGrid::xScaleDiv ( ) const
Returns
the scale division of the x axis

Definition at line 419 of file qwt_plot_grid.cpp.

bool QwtPlotGrid::yEnabled ( ) const
Returns
true if horizontal grid lines are enabled
See also
enableY()

Definition at line 403 of file qwt_plot_grid.cpp.

bool QwtPlotGrid::yMinEnabled ( ) const
Returns
true if minor horizontal grid lines are enabled
See also
enableYMin()

Definition at line 412 of file qwt_plot_grid.cpp.

const QwtScaleDiv & QwtPlotGrid::yScaleDiv ( ) const
Returns
the scale division of the y axis

Definition at line 425 of file qwt_plot_grid.cpp.

Member Data Documentation

PrivateData* QwtPlotGrid::d_data
private

Definition at line 83 of file qwt_plot_grid.h.


The documentation for this class was generated from the following files:


plotjuggler
Author(s): Davide Faconti
autogenerated on Sat Jul 6 2019 03:44:18