17   class HistogramWidget;
 
   43                   const QString &name, 
const QColor &color);
 
void savePairs()
This asks the user for a file and saves the current stretch pairs to that file. 
 
virtual Stretch getStretch()
Returns the current stretch object. 
 
QTableWidget * createStretchTable()
This creates the stretch pairs table. 
 
void stretchChanged()
Emitted when a new Stretch object is available. 
 
Stretch * p_stretch
Current stretch pairs stored here. 
 
QTableWidget * p_table
Pairs table. 
 
Container of a cube histogram. 
 
virtual void setHistogram(const Histogram &)
This should be called when the visible area changes. 
 
virtual void setStretch(Stretch)=0
Children must re-implement this to update their stretch pairs and GUI elements appropriately. 
 
StretchType(const Histogram &hist, const Stretch &stretch, const QString &name, const QColor &color)
This constructs a stretch type. 
 
void updateGraph()
This updates the graph with the current stretch object. 
 
HistogramWidget * p_graph
Histogram graph. 
 
This is the base class for advanced stretches. 
 
void updateTable()
This updates the table with the current stretch pairs. 
 
virtual ~StretchType()
Destructor. 
 
Histogram * p_cubeHist
Visible area histogram. 
 
QGridLayout * p_mainLayout
Main layout.