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KDChart::GlobalMeasureScaling Class Reference

#include <KDChartMeasure.h>

Collaboration diagram for KDChart::GlobalMeasureScaling:

[legend]
List of all members.

Detailed Description

Auxiliary class used by the KDChart::Measure and KDChart::Chart class.

Normally there should be no need to call any of these methods yourself.

They are used by KDChart::Chart::paint( QPainter*, const QRect& ) to adjust all of the relative Measures according to the target rectangle's size.

Default factors are (1.0, 1.0)

Definition at line 148 of file KDChartMeasure.h.

Public Member Functions

 GlobalMeasureScaling ()
virtual ~GlobalMeasureScaling ()

Static Public Member Functions

const QPair< qreal, qreal > currentFactors ()
 Returns the currently active factors.

GlobalMeasureScalinginstance ()
void resetFactors ()
 Reset factors to the values active before the previous call of setFactors.

void setFactors (qreal factorX, qreal factorY)
 Set new factors to be used by all Measure objects from now on.


Constructor & Destructor Documentation

KDChart::GlobalMeasureScaling::GlobalMeasureScaling  ) 
 

Definition at line 187 of file KDChartMeasure.cpp.

00188 {
00189     mFactors.push( qMakePair(1.0, 1.0) );
00190 }

KDChart::GlobalMeasureScaling::~GlobalMeasureScaling  )  [virtual]
 

Definition at line 192 of file KDChartMeasure.cpp.

00193 {
00194     // this space left empty intentionally
00195 }


Member Function Documentation

const QPair< qreal, qreal > KDChart::GlobalMeasureScaling::currentFactors  )  [static]
 

Returns the currently active factors.

Definition at line 215 of file KDChartMeasure.cpp.

References instance(), and mFactors.

00216 {
00217     return instance()->mFactors.top();
00218 }

GlobalMeasureScaling * KDChart::GlobalMeasureScaling::instance  )  [static]
 

Definition at line 197 of file KDChartMeasure.cpp.

References instance().

Referenced by currentFactors(), instance(), resetFactors(), and setFactors().

00198 {
00199     static GlobalMeasureScaling instance;
00200     return &instance;
00201 }

void KDChart::GlobalMeasureScaling::resetFactors  )  [static]
 

Reset factors to the values active before the previous call of setFactors.

This works on a stack, so recursive calls works fine, like: setFactors, setFactors, unserFactors, unsetFactors

Definition at line 208 of file KDChartMeasure.cpp.

References instance(), and mFactors.

00209 {
00210     // never remove the initial (1.0. 1.0) setting
00211     if( instance()->mFactors.count() > 1 )
00212         instance()->mFactors.pop();
00213 }

void KDChart::GlobalMeasureScaling::setFactors qreal  factorX,
qreal  factorY
[static]
 

Set new factors to be used by all Measure objects from now on.

Previous values will be stored.

Definition at line 203 of file KDChartMeasure.cpp.

References instance(), and mFactors.

00204 {
00205     instance()->mFactors.push( qMakePair(factorX, factorY) );
00206 }


The documentation for this class was generated from the following files:
Generated on Thu May 10 11:06:32 2007 for KD Chart 2 by doxygen 1.3.6