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osg::QGenericFieldValueLabel

osg::QGenericFieldValueLabel Class Reference

Flyweight label, that uses the text representation of the fields.

#include <OSGQFieldValueLabel.h>

Inheritance diagram for osg::QGenericFieldValueLabel:

osg::QFieldValueLabelBase osg::QTypedFieldValueLabel< FieldContentsTypeT > List of all members.

Public Member Functions

 QGenericFieldValueLabel (QFieldViewBase *pView, UInt32 uiIndex)
virtual ~QGenericFieldValueLabel (void)
virtual void paint (QPainter *pPainter, const QColorGroup &colGrp, const QRect &rect)
virtual QSize sizeHint (void)
virtual QSize minimumSizeHint (void)
virtual void valueChanged (void)
void setIndex (UInt32 uiIndex)
UInt32 getIndex (void) const

Static Public Member Functions

static QFieldValueLabelBase * create (QFieldViewBase *pView, UInt32 uiIndex)

Protected Member Functions

const QString & getCachedValue (void)
const QSize & getCachedSize (void)
QFieldViewBase * getFieldView (void)
const QFieldViewBase * getFieldView (void) const
FieldContainerPtr & getFieldContainer (void)
const FieldContainerPtr & getFieldContainer (void) const
UInt32 getFieldId (void) const
UInt32 getAspect (void) const
Field * getFieldPtr (void)
const Field * getFieldPtr (void) const

Private Types

typedef QFieldValueLabelBase Inherited

Private Member Functions

void updateCache (void)

Private Attributes

QString _strCachedVal
QSize _cachedSize
bool _bCacheValid

Detailed Description

Definition at line 106 of file OSGQFieldValueLabel.h.

Member Typedef Documentation

typedef QFieldValueLabelBase osg::QGenericFieldValueLabel::Inherited [private]
 

Reimplemented in osg::QTypedFieldValueLabel< FieldContentsTypeT >.

Definition at line 129 of file OSGQFieldValueLabel.h.

Constructor & Destructor Documentation

QGenericFieldValueLabel::QGenericFieldValueLabel (  QFieldViewBase *  pView,
UInt32  uiIndex
) 
 

Constructor

Definition at line 95 of file OSGQFieldValueLabel.cpp.

Referenced by create().

00097     : Inherited    (pView, uiIndex),
00098       _strCachedVal(              ),
00099       _cachedSize  (              ),
00100       _bCacheValid (false         )
00101 {
00102 }

QGenericFieldValueLabel::~QGenericFieldValueLabel (  void   )  [virtual]
 

Destructor

Definition at line 116 of file OSGQFieldValueLabel.cpp.

00117 {
00118 }

Member Function Documentation

QFieldValueLabelBase * QGenericFieldValueLabel::create (  QFieldViewBase *  pView,
UInt32  uiIndex
)  [static]
 

Create function, which is registered at the QFieldLabelFactory.

Definition at line 108 of file OSGQFieldValueLabel.cpp.

References QGenericFieldValueLabel().

00109 {
00110     return new QGenericFieldValueLabel(pView, uiIndex);
00111 }

void QGenericFieldValueLabel::paint (  QPainter *  pPainter,
const QColorGroup &  colGrp,
const QRect &  rect
)  [virtual]
 

Draws the text representation of a field value.

Implements osg::QFieldValueLabelBase.

Definition at line 124 of file OSGQFieldValueLabel.cpp.

References getCachedValue(), and sizeHint().

00126 {
00127     if(!rect.isValid())
00128         return;
00129 
00130     pPainter->save();
00131 
00132     pPainter->setPen  (colGrp.text());
00133     pPainter->setBrush(colGrp.base());
00134 
00135     if( (rect.width() < sizeHint().width())   || 
00136         (rect.height() < sizeHint().height())   )
00137     {
00138         pPainter->drawRect(rect);
00139 
00140         pPainter->drawText(rect, AlignVCenter, getCachedValue());
00141     }
00142     else
00143     {
00144         QRect rectText(rect.x()    +4, rect.y()     +4, 
00145                        rect.width()-8, rect.height()-8 );
00146 
00147         pPainter->drawRect(rect);
00148 
00149         pPainter->drawText(rectText, AlignVCenter, getCachedValue());
00150     }
00151 
00152     pPainter->restore();
00153 }

QSize QGenericFieldValueLabel::sizeHint (  void   )  [virtual]
 

Get the best size for this label.

Implements osg::QFieldValueLabelBase.

Definition at line 159 of file OSGQFieldValueLabel.cpp.

References getCachedSize().

Referenced by paint().

00160 {
00161     return QSize(getCachedSize().width()  + 8,
00162                  getCachedSize().height() + 8);
00163 }

QSize QGenericFieldValueLabel::minimumSizeHint (  void   )  [virtual]
 

Get the minimal size for this label.

Implements osg::QFieldValueLabelBase.

Definition at line 169 of file OSGQFieldValueLabel.cpp.

References getCachedSize().

00170 {
00171     return getCachedSize();
00172 }

void QGenericFieldValueLabel::valueChanged (  void   )  [virtual]
 

Tell the label, that the shown field's value has changed.

Implements osg::QFieldValueLabelBase.

Definition at line 178 of file OSGQFieldValueLabel.cpp.

References _bCacheValid.

00179 {
00180     _bCacheValid = false;
00181 }

const QString & QGenericFieldValueLabel::getCachedValue (  void   )  [protected]
 

Definition at line 184 of file OSGQFieldValueLabel.cpp.

References _strCachedVal, and updateCache().

Referenced by paint().

00185 {
00186     updateCache();
00187 
00188     return _strCachedVal;
00189 }

const QSize & QGenericFieldValueLabel::getCachedSize (  void   )  [protected]
 

Definition at line 192 of file OSGQFieldValueLabel.cpp.

References _cachedSize, and updateCache().

Referenced by minimumSizeHint(), and sizeHint().

00193 {
00194     updateCache();
00195 
00196     return _cachedSize;
00197 }

void QGenericFieldValueLabel::updateCache (  void   )  [private]
 

If necessary the cached text representation of the field's value is updated.

Definition at line 204 of file OSGQFieldValueLabel.cpp.

References _bCacheValid, _cachedSize, _strCachedVal, osg::QFieldValueLabelBase::getFieldPtr(), osg::QFieldValueLabelBase::getFieldView(), osg::QFieldValueLabelBase::getIndex(), osg::Field::getSize(), and osg::Field::getValueByStr().

Referenced by getCachedSize(), and getCachedValue().

00205 {
00206     if(_bCacheValid)
00207         return;
00208 
00209     if(getIndex() >= getFieldPtr()->getSize())
00210     {
00211         _strCachedVal = "";
00212         _cachedSize   = QSize(10, getFieldView()->fontMetrics().height());
00213         _bCacheValid  = true;
00214 
00215         return;
00216     }
00217 
00218     std::string strTemp;
00219 
00220     getFieldPtr()->getValueByStr(strTemp, getIndex());
00221     
00222     _strCachedVal = strTemp.c_str();
00223     
00224     _cachedSize   = QSize(getFieldView()->fontMetrics().width (_strCachedVal),
00225                           getFieldView()->fontMetrics().height(             ));
00226     
00227     _bCacheValid = true;
00228 }

void QFieldValueLabelBase::setIndex (  UInt32  uiIndex  )  [inherited]
 

Definition at line 81 of file OSGQFieldValueLabel.cpp.

References osg::QFieldValueLabelBase::_uiIndex, and osg::QFieldValueLabelBase::valueChanged().

Referenced by osg::QMFieldView::acquireLabel().

00082 {
00083     _uiIndex = uiIndex;
00084 
00085     valueChanged();
00086 }

UInt32 osg::QFieldValueLabelBase::getIndex (  void   )  const [inline, inherited]
 

Definition at line 46 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_uiIndex.

Referenced by osg::QMFieldView::acquireLabel(), osg::QMFieldView::deleteAllLabels(), osg::QMFieldView::LabelInfo::getIndex(), osg::QMFieldView::redrawChanged(), osg::QMFieldView::releaseLabel(), osg::QVectorFieldValueLabel< VectorTypeT >::updateCache(), osg::QPointFieldValueLabel< PointTypeT >::updateCache(), osg::QMatrixFieldValueLabel< MatrixTypeT >::updateCache(), and updateCache().

00047 {
00048     return _uiIndex;
00049 }

QFieldViewBase * osg::QFieldValueLabelBase::getFieldView (  void   )  [inline, protected, inherited]
 

Definition at line 52 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView.

Referenced by osg::QVectorFieldValueLabel< VectorTypeT >::updateCache(), osg::QPointFieldValueLabel< PointTypeT >::updateCache(), osg::QMatrixFieldValueLabel< MatrixTypeT >::updateCache(), and updateCache().

00053 {
00054     return _pView;
00055 }

const QFieldViewBase * osg::QFieldValueLabelBase::getFieldView (  void   )  const [inline, protected, inherited]
 

Definition at line 58 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView.

00059 {
00060     return _pView;
00061 }

FieldContainerPtr & osg::QFieldValueLabelBase::getFieldContainer (  void   )  [inline, protected, inherited]
 

Definition at line 64 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView, and osg::QFieldViewBase::getFieldContainer().

00065 {
00066     return _pView->getFieldContainer();
00067 }

const FieldContainerPtr & osg::QFieldValueLabelBase::getFieldContainer (  void   )  const [inline, protected, inherited]
 

Definition at line 70 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView, and osg::QFieldViewBase::getFieldContainer().

00071 {
00072     return _pView->getFieldContainer();
00073 }

UInt32 osg::QFieldValueLabelBase::getFieldId (  void   )  const [inline, protected, inherited]
 

Definition at line 76 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView, and osg::QFieldViewBase::getFieldId().

00077 {
00078     return _pView->getFieldId();
00079 }

UInt32 osg::QFieldValueLabelBase::getAspect (  void   )  const [inline, protected, inherited]
 

Definition at line 82 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView, and osg::QFieldViewBase::getAspect().

00083 {
00084     return _pView->getAspect();
00085 }

Field * osg::QFieldValueLabelBase::getFieldPtr (  void   )  [inline, protected, inherited]
 

Definition at line 88 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView, and osg::QFieldViewBase::getFieldPtr().

Referenced by osg::QVectorFieldValueLabel< VectorTypeT >::updateCache(), osg::QPointFieldValueLabel< PointTypeT >::updateCache(), osg::QMatrixFieldValueLabel< MatrixTypeT >::updateCache(), and updateCache().

00089 {
00090     return _pView->getFieldPtr();
00091 }

const Field * osg::QFieldValueLabelBase::getFieldPtr (  void   )  const [inline, protected, inherited]
 

Definition at line 94 of file OSGQFieldValueLabel.inl.

References osg::QFieldValueLabelBase::_pView, and osg::QFieldViewBase::getFieldPtr().

00095 {
00096     return _pView->getFieldPtr();
00097 }

Member Data Documentation

QString osg::QGenericFieldValueLabel::_strCachedVal [private]
 

Definition at line 133 of file OSGQFieldValueLabel.h.

Referenced by getCachedValue(), and updateCache().

QSize osg::QGenericFieldValueLabel::_cachedSize [private]
 

Definition at line 134 of file OSGQFieldValueLabel.h.

Referenced by getCachedSize(), and updateCache().

bool osg::QGenericFieldValueLabel::_bCacheValid [private]
 

Definition at line 135 of file OSGQFieldValueLabel.h.

Referenced by updateCache(), and valueChanged().

The documentation for this class was generated from the following files:
Generated on Thu Aug 25 04:31:05 2005 for OpenSG by  doxygen 1.4.3