GridRemoval Class Reference

Strategy class for grid removal. More...

#include <GridRemoval.h>

Collaboration diagram for GridRemoval:

Public Member Functions
	GridRemoval (bool isGnuplot)
	Single constructor.
QPixmap	remove (const Transformation &transformation, const DocumentModelGridRemoval &modelGridRemoval, const QImage &imageBefore)
	Process QImage into QPixmap, removing the grid lines.

Detailed Description

Strategy class for grid removal.

Definition at line 24 of file GridRemoval.h.

Constructor & Destructor Documentation

GridRemoval()

GridRemoval::GridRemoval

(

bool

isGnuplot

)

Single constructor.

Definition at line 20 of file GridRemoval.cpp.

                                        :
  m_gridLog (isGnuplot)
{
}

Member Function Documentation

remove()

QPixmap GridRemoval::remove	(	const Transformation &	transformation,
		const DocumentModelGridRemoval &	modelGridRemoval,
		const QImage &	imageBefore )

Process QImage into QPixmap, removing the grid lines.

Definition at line 53 of file GridRemoval.cpp.

{
  qCInfo(ENGAUGE_LOG) << "GridRemoval::remove"
                              << " transformationIsDefined=" << (transformation.transformIsDefined() ? "true" : "false")
                              << " removeDefinedGridLines=" << (modelGridRemoval.removeDefinedGridLines() ? "true" : "false");
 
  QImage image = imageBefore;
 
  // Collect GridHealers instances, one per grid line
  GridHealers gridHealers;
 
  // Make sure grid line removal is wanted, and possible. Otherwise all processing is skipped
  if (modelGridRemoval.removeDefinedGridLines() &&
      transformation.transformIsDefined()) {
 
    double yGraphMin = modelGridRemoval.startY();
    double yGraphMax = modelGridRemoval.stopY();
    for (int i = 0; i < modelGridRemoval.countX(); i++) {
      double xGraph = modelGridRemoval.startX() + i * modelGridRemoval.stepX();
 
      // Convert line between graph coordinates (xGraph,yGraphMin) and (xGraph,yGraphMax) to screen coordinates
      QPointF posScreenMin, posScreenMax;
      transformation.transformRawGraphToScreen (QPointF (xGraph,
                                                         yGraphMin),
                                                posScreenMin);
      transformation.transformRawGraphToScreen (QPointF (xGraph,
                                                         yGraphMax),
                                                posScreenMax);
 
      removeLine (posScreenMin,
                  posScreenMax,
                  image,
                  modelGridRemoval,
                  gridHealers);
    }
 
    double xGraphMin = modelGridRemoval.startX();
    double xGraphMax = modelGridRemoval.stopX();
    for (int j = 0; j < modelGridRemoval.countY(); j++) {
      double yGraph = modelGridRemoval.startY() + j * modelGridRemoval.stepY();
 
      // Convert line between graph coordinates (xGraphMin,yGraph) and (xGraphMax,yGraph) to screen coordinates
      QPointF posScreenMin, posScreenMax;
      transformation.transformRawGraphToScreen (QPointF (xGraphMin,
                                                         yGraph),
                                                posScreenMin);
      transformation.transformRawGraphToScreen (QPointF (xGraphMax,
                                                         yGraph),
                                                posScreenMax);
 
      removeLine (posScreenMin,
                  posScreenMax,
                  image,
                  modelGridRemoval,
                  gridHealers);
    }
 
    // Heal the broken lines now that all grid lines have been removed and the image has stabilized
    GridHealers::iterator itr;
    for (itr = gridHealers.begin(); itr != gridHealers.end(); itr++) {
      GridHealerAbstractBase *gridHealer = *itr;
      gridHealer->healed (image);
      delete gridHealer;
    }
  }
 
  return QPixmap::fromImage (image);
}

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The documentation for this class was generated from the following files:

• Grid/GridRemoval.h
• Grid/GridRemoval.cpp