KD Chart 2: KDChartAbstractAxis.cpp Source File

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# KDChartAbstractAxis.cpp

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    00001 /****************************************************************************
    00002  ** Copyright (C) 2006 Klarälvdalens Datakonsult AB.  All rights reserved.
    00003  **
    00004  ** This file is part of the KD Chart library.
    00005  **
    00006  ** This file may be distributed and/or modified under the terms of the
    00007  ** GNU General Public License version 2 as published by the Free Software
    00008  ** Foundation and appearing in the file LICENSE.GPL included in the
    00009  ** packaging of this file.
    00010  **
    00011  ** Licensees holding valid commercial KD Chart licenses may use this file in
    00012  ** accordance with the KD Chart Commercial License Agreement provided with
    00013  ** the Software.
    00014  **
    00015  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    00016  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    00017  **
    00018  ** See http://www.kdab.net/kdchart for
    00019  **   information about KDChart Commercial License Agreements.
    00020  **
    00021  ** Contact info@kdab.net if any conditions of this
    00022  ** licensing are not clear to you.
    00023  **
    00024  **********************************************************************/
    00025
    00026 #include <QDebug>
    00027
    00028 #include "KDChartAbstractAxis.h"
    00029 #include "KDChartAbstractAxis_p.h"
    00030 #include "KDChartAbstractDiagram.h"
    00031 #include "KDChartAbstractCartesianDiagram.h"
    00032 #include "KDChartEnums.h"
    00033 #include "KDChartMeasure.h"
    00034
    00035 #include <KDABLibFakes>
    00036
    00037 using namespace KDChart;
    00038
    00039 #define d d_func()
    00040
    00041 AbstractAxis::Private::Private( AbstractDiagram* diagram, AbstractAxis* axis )
    00042     : observer( 0 )
    00043     , mDiagram( diagram )
    00044     , mAxis(    axis )
    00045 {
    00046     // Note: We do NOT call setDiagram( diagram, axis );
    00047     //       but it is called in AbstractAxis::delayedInit() instead!
    00048 }
    00049
    00050 AbstractAxis::Private::~Private()
    00051 {
    00052     delete observer;
    00053     observer = 0;
    00054 }
    00055
    00056 bool AbstractAxis::Private::setDiagram(
    00057     AbstractDiagram* diagram_,
    00058     bool delayedInit )
    00059 {
    00060     AbstractDiagram* diagram = delayedInit ? mDiagram : diagram_;
    00061     if( delayedInit ){
    00062         mDiagram = 0;
    00063     }
    00064
    00065     // do not set a diagram again that was already set
    00066     if (  diagram &&
    00067         ((diagram == mDiagram) || secondaryDiagrams.contains( diagram )) )
    00068         return false;
    00069
    00070     bool bNewDiagramStored = false;
    00071     if ( ! mDiagram ) {
    00072         mDiagram = diagram;
    00073         delete observer;
    00074         if ( mDiagram ) {
    00075 //qDebug() << "axis" << (axis != 0);
    00076             observer = new DiagramObserver( mDiagram, mAxis );
    00077             bNewDiagramStored = true;
    00078         }else{
    00079             observer = 0;
    00080         }
    00081     } else {
    00082         if ( diagram )
    00083             secondaryDiagrams.enqueue( diagram );
    00084     }
    00085     return bNewDiagramStored;
    00086 }
    00087
    00088 void AbstractAxis::Private::unsetDiagram( AbstractDiagram* diagram )
    00089 {
    00090     if ( diagram == mDiagram ) {
    00091         mDiagram = 0;
    00092         delete observer;
    00093         observer = 0;
    00094     } else {
    00095         secondaryDiagrams.removeAll( diagram );
    00096     }
    00097     if( !secondaryDiagrams.isEmpty() ) {
    00098         AbstractDiagram *nextDiagram = secondaryDiagrams.dequeue();
    00099         setDiagram( nextDiagram );
    00100     }
    00101 }
    00102
    00103 bool AbstractAxis::Private::hasDiagram( AbstractDiagram* diagram ) const
    00104 {
    00105     return diagram == mDiagram || secondaryDiagrams.contains( diagram );
    00106 }
    00107
    00108 AbstractAxis::AbstractAxis ( AbstractDiagram* diagram )
    00109     : AbstractArea( new Private( diagram, this ) )
    00110 {
    00111     init();
    00112     QTimer::singleShot(0, this, SLOT(delayedInit()));
    00113 }
    00114
    00115 AbstractAxis::~AbstractAxis()
    00116 {
    00117     d->mDiagram = 0;
    00118     d->secondaryDiagrams.clear();
    00119 }
    00120
    00121
    00122 void AbstractAxis::init()
    00123 {
    00124     Measure m(
    00125         12.5,
    00126         KDChartEnums::MeasureCalculationModeAuto,
    00127         KDChartEnums::MeasureOrientationAuto );
    00128     d->textAttributes.setFontSize( m  );
    00129     m.setValue( 5 );
    00130     m.setCalculationMode( KDChartEnums::MeasureCalculationModeAbsolute );
    00131     d->textAttributes.setMinimalFontSize( m  );
    00132 }
    00133
    00134 void AbstractAxis::delayedInit()
    00135 {
    00136     // We call setDiagram() here, because the c'tor of Private
    00137     // only has stored the pointers, but it did not call setDiagram().
    00138     if( d )
    00139         d->setDiagram( 0, true /* delayedInit */ );
    00140 }
    00141
    00142 bool AbstractAxis::compare( const AbstractAxis* other )const
    00143 {
    00144     if( other == this ) return true;
    00145     if( ! other ){
    00146         //qDebug() << "CartesianAxis::compare() cannot compare to Null pointer";
    00147         return false;
    00148     }
    00149     /*
    00150     qDebug() << (textAttributes() == other->textAttributes());
    00151     qDebug() << (labels()         == other->labels());
    00152     qDebug() << (shortLabels()    == other->shortLabels());
    00153     */
    00154     return  ( static_cast<const AbstractAreaBase*>(this)->compare( other ) ) &&
    00155             (textAttributes() == other->textAttributes()) &&
    00156             (labels()         == other->labels()) &&
    00157             (shortLabels()    == other->shortLabels());
    00158 }
    00159
    00160
    00161 const QString AbstractAxis::customizedLabel( const QString& label )const
    00162 {
    00163     return label;
    00164 }
    00165
    00166
    00177 void AbstractAxis::createObserver( AbstractDiagram* diagram )
    00178 {
    00179     if( d->setDiagram( diagram ) )
    00180         connectSignals();
    00181 }
    00182
    00193 void AbstractAxis::deleteObserver( AbstractDiagram* diagram )
    00194 {
    00195     d->unsetDiagram( diagram );
    00196 }
    00197
    00211 void AbstractAxis::connectSignals()
    00212 {
    00213     if( d->observer ){
    00214         connect( d->observer, SIGNAL( diagramDataChanged( AbstractDiagram *) ),
    00215                 this, SLOT( update() ) );
    00216     }
    00217 }
    00218
    00219
    00231 void AbstractAxis::setTextAttributes( const TextAttributes &a )
    00232 {
    00233     d->textAttributes = a;
    00234 }
    00235
    00241 TextAttributes AbstractAxis::textAttributes() const
    00242 {
    00243     return d->textAttributes;
    00244 }
    00245
    00263 void AbstractAxis::setLabels( const QStringList& list )
    00264 {
    00265     d->hardLabels = list;
    00266 }
    00267
    00273 QStringList AbstractAxis::labels() const
    00274 {
    00275     return d->hardLabels;
    00276 }
    00277
    00289 void AbstractAxis::setShortLabels( const QStringList& list )
    00290 {
    00291     d->hardShortLabels = list;
    00292 }
    00293
    00302 QStringList AbstractAxis::shortLabels() const
    00303 {
    00304     return d->hardShortLabels;
    00305 }
    00306
    00312 const AbstractCoordinatePlane* AbstractAxis::coordinatePlane() const
    00313 {
    00314     if( d->diagram() )
    00315         return d->diagram()->coordinatePlane();
    00316     return 0;
    00317 }
    00318
    00319 const AbstractDiagram * KDChart::AbstractAxis::diagram() const
    00320 {
    00321     return d->diagram();
    00322 }
    00323
    00324 bool KDChart::AbstractAxis::observedBy( AbstractDiagram * diagram ) const
    00325 {
    00326     return d->hasDiagram( diagram );
    00327 }
    00328
    00329 void KDChart::AbstractAxis::update()
    00330 {
    00331     if( d->diagram() )
    00332         d->diagram()->update();
    00333 }