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00026 #include <QDebug>
00027 #include <QPainter>
00028 #include <QString>
00029 #include <QPainterPath>
00030 #include <QPen>
00031 #include <QVector>
00032
00033 #include "KDChartLineDiagram.h"
00034 #include "KDChartBarDiagram.h"
00035 #include "KDChartPalette.h"
00036 #include "KDChartPosition.h"
00037 #include "KDChartTextAttributes.h"
00038 #include "KDChartAttributesModel.h"
00039 #include "KDChartAbstractGrid.h"
00040 #include "KDChartDataValueAttributes.h"
00041
00042 #include <KDABLibFakes>
00043
00044 #include "KDChartLineDiagram_p.h"
00045 #include "KDChartNormalLineDiagram_p.h"
00046 #include "KDChartStackedLineDiagram_p.h"
00047 #include "KDChartPercentLineDiagram_p.h"
00048
00049 using namespace KDChart;
00050
00051 LineDiagram::Private::Private()
00052 {
00053 }
00054
00055 LineDiagram::Private::~Private() {}
00056
00057
00058 #define d d_func()
00059
00060
00061 LineDiagram::LineDiagram( QWidget* parent, CartesianCoordinatePlane* plane ) :
00062 AbstractCartesianDiagram( new Private(), parent, plane )
00063 {
00064 init();
00065 }
00066
00067 void LineDiagram::init()
00068 {
00069 d->diagram = this;
00070 d->normalDiagram = new NormalLineDiagram( this );
00071 d->stackedDiagram = new StackedLineDiagram( this );
00072 d->percentDiagram = new PercentLineDiagram( this );
00073 d->implementor = d->normalDiagram;
00074 }
00075
00076 LineDiagram::~LineDiagram()
00077 {
00078 }
00079
00083 LineDiagram * LineDiagram::clone() const
00084 {
00085 LineDiagram* newDiagram = new LineDiagram( new Private( *d ) );
00086 newDiagram->setType( type() );
00087 return newDiagram;
00088 }
00089
00090
00091 bool LineDiagram::compare( const LineDiagram* other )const
00092 {
00093 if( other == this ) return true;
00094 if( ! other ){
00095 return false;
00096 }
00097
00098
00099
00100
00101
00102 return
00103 ( static_cast<const AbstractCartesianDiagram*>(this)->compare( other ) ) &&
00104
00105 (type() == other->type());
00106 }
00107
00112 void LineDiagram::setType( const LineType type )
00113 {
00114 if ( d->implementor->type() == type ) return;
00115 if ( type != LineDiagram::Normal && datasetDimension() > 1 ) {
00116 Q_ASSERT_X ( false, "setType()",
00117 "This line chart type can't be used with multi-dimensional data." );
00118 return;
00119 }
00120 switch( type ) {
00121 case Normal:
00122 d->implementor = d->normalDiagram;
00123 break;
00124 case Stacked:
00125 d->implementor = d->stackedDiagram;
00126 break;
00127 case Percent:
00128 d->implementor = d->percentDiagram;
00129 break;
00130 default:
00131 Q_ASSERT_X( false, "LineDiagram::setType", "unknown diagram subtype" );
00132 };
00133
00134
00135 Q_ASSERT( d->implementor->type() == type );
00136
00137
00138 setPercentMode( type == LineDiagram::Percent );
00139 setDataBoundariesDirty();
00140 emit layoutChanged( this );
00141 emit propertiesChanged();
00142 }
00143
00147 LineDiagram::LineType LineDiagram::type() const
00148 {
00149 return d->implementor->type();
00150 }
00151
00155 void LineDiagram::setLineAttributes( const LineAttributes& la )
00156 {
00157 d->attributesModel->setModelData(
00158 qVariantFromValue( la ),
00159 LineAttributesRole );
00160 emit propertiesChanged();
00161 }
00162
00166 void LineDiagram::setLineAttributes(
00167 int column,
00168 const LineAttributes& la )
00169 {
00170 d->attributesModel->setHeaderData(
00171 column,
00172 Qt::Vertical,
00173 qVariantFromValue( la ),
00174 LineAttributesRole );
00175 emit propertiesChanged();
00176 }
00177
00181 void LineDiagram::resetLineAttributes( int column )
00182 {
00183 d->attributesModel->resetHeaderData(
00184 column, Qt::Vertical, LineAttributesRole );
00185 emit propertiesChanged();
00186 }
00187
00191 void LineDiagram::setLineAttributes(
00192 const QModelIndex& index,
00193 const LineAttributes& la )
00194 {
00195 d->attributesModel->setData(
00196 d->attributesModel->mapFromSource(index),
00197 qVariantFromValue( la ),
00198 LineAttributesRole );
00199 emit propertiesChanged();
00200 }
00201
00205 void LineDiagram::resetLineAttributes( const QModelIndex & index )
00206 {
00207 d->attributesModel->resetData(
00208 d->attributesModel->mapFromSource(index), LineAttributesRole );
00209 emit propertiesChanged();
00210 }
00211
00215 LineAttributes LineDiagram::lineAttributes() const
00216 {
00217 return qVariantValue<LineAttributes>(
00218 d->attributesModel->data( KDChart::LineAttributesRole ) );
00219 }
00220
00224 LineAttributes LineDiagram::lineAttributes( int column ) const
00225 {
00226 return qVariantValue<LineAttributes>(
00227 d->attributesModel->data(
00228 d->attributesModel->mapFromSource( columnToIndex( column ) ),
00229 KDChart::LineAttributesRole ) );
00230 }
00231
00235 LineAttributes LineDiagram::lineAttributes(
00236 const QModelIndex& index ) const
00237 {
00238 return qVariantValue<LineAttributes>(
00239 d->attributesModel->data(
00240 d->attributesModel->mapFromSource(index),
00241 KDChart::LineAttributesRole ) );
00242 }
00243
00247 void LineDiagram::setThreeDLineAttributes(
00248 const ThreeDLineAttributes& la )
00249 {
00250 setDataBoundariesDirty();
00251 d->attributesModel->setModelData(
00252 qVariantFromValue( la ),
00253 ThreeDLineAttributesRole );
00254 emit propertiesChanged();
00255 }
00256
00260 void LineDiagram::setThreeDLineAttributes(
00261 int column,
00262 const ThreeDLineAttributes& la )
00263 {
00264 setDataBoundariesDirty();
00265 d->attributesModel->setHeaderData(
00266 column,
00267 Qt::Vertical,
00268 qVariantFromValue( la ),
00269 ThreeDLineAttributesRole );
00270 emit propertiesChanged();
00271 }
00272
00276 void LineDiagram::setThreeDLineAttributes(
00277 const QModelIndex & index,
00278 const ThreeDLineAttributes& la )
00279 {
00280 setDataBoundariesDirty();
00281 d->attributesModel->setData(
00282 d->attributesModel->mapFromSource(index),
00283 qVariantFromValue( la ),
00284 ThreeDLineAttributesRole );
00285 emit propertiesChanged();
00286 }
00287
00291 ThreeDLineAttributes LineDiagram::threeDLineAttributes() const
00292 {
00293 return qVariantValue<ThreeDLineAttributes>(
00294 d->attributesModel->data( KDChart::ThreeDLineAttributesRole ) );
00295 }
00296
00300 ThreeDLineAttributes LineDiagram::threeDLineAttributes( int column ) const
00301 {
00302 return qVariantValue<ThreeDLineAttributes>(
00303 d->attributesModel->data(
00304 d->attributesModel->mapFromSource( columnToIndex( column ) ),
00305 KDChart::ThreeDLineAttributesRole ) );
00306 }
00307
00311 ThreeDLineAttributes LineDiagram::threeDLineAttributes( const QModelIndex& index ) const
00312 {
00313 return qVariantValue<ThreeDLineAttributes>(
00314 d->attributesModel->data(
00315 d->attributesModel->mapFromSource( index ),
00316 KDChart::ThreeDLineAttributesRole ) );
00317 }
00318
00319 double LineDiagram::threeDItemDepth( const QModelIndex& index ) const
00320 {
00321 return threeDLineAttributes( index ).validDepth();
00322 }
00323
00324 double LineDiagram::threeDItemDepth( int column ) const
00325 {
00326 return qVariantValue<ThreeDLineAttributes>(
00327 d->attributesModel->headerData (
00328 column,
00329 Qt::Vertical,
00330 KDChart::ThreeDLineAttributesRole ) ).validDepth();
00331 }
00332
00336 void LineDiagram::setValueTrackerAttributes( const QModelIndex & index,
00337 const ValueTrackerAttributes & va )
00338 {
00339 d->attributesModel->setData( d->attributesModel->mapFromSource(index),
00340 qVariantFromValue( va ),
00341 KDChart::ValueTrackerAttributesRole );
00342 emit propertiesChanged();
00343 }
00344
00348 ValueTrackerAttributes LineDiagram::valueTrackerAttributes(
00349 const QModelIndex & index ) const
00350 {
00351 return qVariantValue<ValueTrackerAttributes>( d->attributesModel->data(
00352 d->attributesModel->mapFromSource( index ),
00353 KDChart::ValueTrackerAttributesRole ) );
00354 }
00355
00356 void LineDiagram::resizeEvent ( QResizeEvent* )
00357 {
00358 }
00359
00360 const QPair<QPointF, QPointF> LineDiagram::calculateDataBoundaries() const
00361 {
00362 if ( !checkInvariants( true ) ) return QPair<QPointF, QPointF>( QPointF( 0, 0 ), QPointF( 0, 0 ) );
00363
00364
00365
00366
00367
00368
00369 return d->implementor->calculateDataBoundaries();
00370 }
00371
00372
00373 void LineDiagram::paintEvent ( QPaintEvent*)
00374 {
00375
00376 QPainter painter ( viewport() );
00377 PaintContext ctx;
00378 ctx.setPainter ( &painter );
00379 ctx.setRectangle ( QRectF ( 0, 0, width(), height() ) );
00380 paint ( &ctx );
00381
00382 }
00383
00384
00385 double LineDiagram::valueForCellTesting( int row, int column,
00386 bool& bOK,
00387 bool showHiddenCellsAsInvalid ) const
00388 {
00389 double value;
00390 if( showHiddenCellsAsInvalid && isHidden( model()->index( row, column, rootIndex() ) ) )
00391 bOK = false;
00392 else
00393 value = d->attributesModel->data(
00394 d->attributesModel->index( row, column, attributesModelRootIndex() )
00395 ).toDouble( &bOK );
00396 return bOK ? value : 0.0;
00397 }
00398
00399 LineAttributes::MissingValuesPolicy LineDiagram::getCellValues(
00400 int row, int column,
00401 bool shiftCountedXValuesByHalfSection,
00402 double& valueX, double& valueY ) const
00403 {
00404 LineAttributes::MissingValuesPolicy policy;
00405
00406 bool bOK = true;
00407 valueX = ( datasetDimension() > 1 && column > 0 )
00408 ? valueForCellTesting( row, column-1, bOK, true )
00409 : ((shiftCountedXValuesByHalfSection ? 0.5 : 0.0) + row);
00410 if( bOK )
00411 valueY = valueForCellTesting( row, column, bOK, true );
00412 if( bOK ){
00413 policy = LineAttributes::MissingValuesPolicyIgnored;
00414 }else{
00415
00416 QModelIndex index = model()->index( row, column, rootIndex() );
00417 LineAttributes la = lineAttributes( index );
00418 policy = la.missingValuesPolicy();
00419 }
00420 return policy;
00421 }
00422
00423 void LineDiagram::paint( PaintContext* ctx )
00424 {
00425
00426
00427 if ( !checkInvariants( true ) ) return;
00428 if ( !AbstractGrid::isBoundariesValid(dataBoundaries()) ) return;
00429 const PainterSaver p( ctx->painter() );
00430 if( model()->rowCount() == 0 || model()->columnCount() == 0 )
00431 return;
00432
00433 AbstractCoordinatePlane* const plane = ctx->coordinatePlane();
00434 ctx->setCoordinatePlane( plane->sharedAxisMasterPlane( ctx->painter() ) );
00435
00436
00437
00438 d->implementor->paint( ctx );
00439
00440 ctx->setCoordinatePlane( plane );
00441 }
00442
00443 void LineDiagram::resize ( const QSizeF& size )
00444 {
00445 d->compressor.setResolution( static_cast<int>( size.width() ),
00446 static_cast<int>( size.height() ) );
00447 setDataBoundariesDirty();
00448 }
00449
00450 const int LineDiagram::numberOfAbscissaSegments () const
00451 {
00452 return d->attributesModel->rowCount(attributesModelRootIndex());
00453 }
00454
00455 const int LineDiagram::numberOfOrdinateSegments () const
00456 {
00457 return d->attributesModel->columnCount(attributesModelRootIndex());
00458 }