pLogicalFunction.cxx

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//----------------------------------------------------------------------------
// Class definition include
//----------------------------------------------------------------------------
#include "pLogicalFunction.h"
#include <iostream>
#include <fstream>
#include <string>


// ----------------------------------------------------------------------------
// WX headers inclusion.
// For compilers that support precompilation, includes <wx/wx.h>.
// ----------------------------------------------------------------------------

#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif

//----------------------------------------------------------------------------
// Class implementation
//----------------------------------------------------------------------------

IMPLEMENT_CLASS(pLogicalFunction, wxObject)

//----------------------------------------------------------------------------
// Constructors
//----------------------------------------------------------------------------
pLogicalFunction:: pLogicalFunction( )
{

        realPoints.DeleteContents(TRUE); 
        validPointRange = 5;
        leftToRigthDef = true;
        _maxX=0;
        _maxY=0;
        _minX=0;
        _minY=0;
}
pLogicalFunction:: ~pLogicalFunction ()
{
        realPoints.DeleteContents(TRUE);
}
/*
* validate if the function has that point in a sensible area returning the index where the point was found or -1 if is in not part of the function: define the sensible area is  
* x1-validPointRange<x<x1+validPointRange y1-validPointRange<y<y1+validPointRange
*/
int pLogicalFunction::validPointOnFunction(wxPoint realPoint)
{
        int pointIndex = -1;
        wxNode* node= realPoints.GetFirst();
        while(node && pointIndex==-1)
        {
                pFunctionPoint* point=(pFunctionPoint*)node->GetData();
                int x = point->getRealX();
                int y = point->getRealY();
                double  vx=SENSIBLE_REGION/_scaleX;
                double vy=SENSIBLE_REGION/_scaleY;

                bool isInXRange= realPoint.x <= x + vx + SENSIBLE_REGION  && realPoint.x >= x - vx-SENSIBLE_REGION;
                bool isInYRange= realPoint.y <= y + vy + SENSIBLE_REGION && realPoint.y >= y - vy-SENSIBLE_REGION;
                if(isInXRange && isInYRange)
                        pointIndex = realPoints.IndexOf(point);

                node = node->GetNext();
        }
        return pointIndex;
}



/*
* returns the index in the list of the point 
*/
int pLogicalFunction::getIndexOf(wxPoint realpoint)
{
        wxNode* node= realPoints.GetFirst();
        while(node)
        {
                pFunctionPoint* point=(pFunctionPoint*)node->GetData();
                if(point->getRealX()==realpoint.x && point->getRealY()==realpoint.y )
                {
                        return realPoints.IndexOf(point);
                }

                node= node->GetNext();
        }
        return -1;

}

/*
* This metohd returns the node of the point that is the movingPointIndex position in the list of points.
* @param: int movingPointIndex, Is the index value of the searched node. 
* @return: Return a pointer to the node corresponding to the index value by parameter.
*/
wxNode* pLogicalFunction::GetPointAt( int movingPointIndex )
{
        if(!realPoints.IsEmpty())
        {       
                wxNode* node= realPoints.Item(movingPointIndex);
                return node;
        }
        else
                return NULL;
}

/*
* Includes a point between two existing points of this function. The new point (x,y) was not defined when the function was created.
* @return Returns true is the point was succcesfully added to the funcion.
*/
bool pLogicalFunction:: AddNewPoint(int x,int y)
{
        pFunctionPoint * newPoint = new pFunctionPoint ( x, y);
        bool includedPoint = realPoints.Append(newPoint)!=NULL;
        if(includedPoint)
        {
            bool order=orderPoints();
                return order; 
        }
        return includedPoint;
}
/*
* This method orders the list of points taking into account that the last appended node in the list (realPoint) is the only one disordered. 
* @return Returns true if the last point included has a valid value for x and was ordered, according to the definition of function.
*/
bool pLogicalFunction::orderPoints()
{
        bool lastOrdered = false;
        bool validToContinue = false;

        wxNode* lastNodeIncluded = realPoints.GetLast();

        wxNode* node = realPoints.GetFirst();
        pFunctionPoint* lastPointIncluded = (pFunctionPoint*)lastNodeIncluded -> GetData();             
        int xToOrder = lastPointIncluded -> getRealX();
        int actualX;
        int nextX;

        // Used for validating 'leftToRigthDef'
        pFunctionPoint* ordFirstPoint = (pFunctionPoint*)realPoints.GetFirst()-> GetData();
        pFunctionPoint* ordLastPoint = (pFunctionPoint*)(lastNodeIncluded->GetPrevious())-> GetData();


        // Normal drawing
        if (leftToRigthDef)
        {
                validToContinue = ordFirstPoint->getRealX() < xToOrder; 
        }
        else
        {
                //validToContinue =ordFirstPoint->getRealX() >  xToOrder;
                validToContinue =ordLastPoint->getRealX() >  xToOrder;
        }

        if ( validToContinue)
        {               

                while( node && !lastOrdered )
                {
                        pFunctionPoint* prevPoint =(pFunctionPoint*)node->GetData();
                        actualX = prevPoint ->getRealX();
                        if( actualX == xToOrder)
                        {
                                realPoints.DeleteNode(lastNodeIncluded);
                                lastOrdered = false;
                        }
                        else if ( actualX < xToOrder )
                        {
                                //firstNode
                                wxNode* nextNode = node->GetNext();
                                pFunctionPoint* nextPoint;
                                if( nextNode != lastNodeIncluded )                      
                                {
                                        nextPoint = (pFunctionPoint*)nextNode -> GetData();     
                                        nextX = nextPoint->getRealX();
                                        int nextIndex = realPoints.IndexOf(nextPoint);
                                        if( nextX > xToOrder )
                                        {
                                                //we need to change the direction in memory of our node
                                                pFunctionPoint* pointToInsert=new pFunctionPoint(lastPointIncluded->getRealX(),lastPointIncluded->getRealY());
                                                // The last inserted point is ordered like: prevPoint - lastPointIncluded - nextPoint
                                                lastOrdered = (realPoints.Insert(nextIndex, pointToInsert))!= NULL;
                                                bool lastNodeDeleted=realPoints.DeleteNode(lastNodeIncluded);
                                                return lastOrdered && lastNodeDeleted;

                                        }

                                }
                                else 
                                {
                                        lastOrdered = true;
                                }
                        }
                        else 
                        {
                                //firstNode
                                wxNode* prevNode = node->GetPrevious();
                                int insertIndex=realPoints.IndexOf(prevPoint);
                                pFunctionPoint* prPoint;
                                if(prevNode)
                                {
                                        prPoint = (pFunctionPoint*)prevNode -> GetData();       
                                        int beforeX =prPoint->getRealX();
                                        if( beforeX < xToOrder)
                                        {
                                                //we need to change the direction in memory of our node
                                                pFunctionPoint* pointToInsert=new pFunctionPoint(lastPointIncluded->getRealX(),lastPointIncluded->getRealY());
                                                // The last inserted point is ordered like: prevPoint - lastPointIncluded - nextPoint
                                                lastOrdered = (realPoints.Insert(insertIndex, pointToInsert))!= NULL;
                                                bool lastNodeDeleted=realPoints.DeleteNode(lastNodeIncluded);
                                                return lastOrdered && lastNodeDeleted;
                                        }
                                }
                                //is just the second point
                                else
                                {
                                        //we need to change the direction in memory of our node
                                        pFunctionPoint* pointToInsert=new pFunctionPoint(lastPointIncluded->getRealX(),lastPointIncluded->getRealY());
                                        // The last inserted point is ordered like: prevPoint - lastPointIncluded - nextPoint
                                        lastOrdered = (realPoints.Insert(insertIndex, pointToInsert))!= NULL;
                                        bool lastNodeDeleted=realPoints.DeleteNode(lastNodeIncluded);
                                        return lastOrdered && lastNodeDeleted;
                                }
                        }

                        node = node->GetNext();
                }

        }
        else
        {
                bool lastNodeDeleted = realPoints.DeleteNode(lastNodeIncluded);
                lastOrdered = lastOrdered && lastNodeDeleted;
        }
        return lastOrdered;
}
/*
* This tries to Add a point to the function if possible it returns true.
* @pre: The list of existing points is ordered.
* @param: int aX, The x value of the point.
* @param: int aY, The y value of the point.
* @param: return Returns TRUE if the point was succesfuly included in the realPoints list.
*/
bool pLogicalFunction::AddPoint(int aX, int aY,bool order) 
{       
        pFunctionPoint * newPoint = new pFunctionPoint (aX, aY);
        wxNode* lastNode = realPoints.GetLast();
        bool addedPoint = false;
        if (lastNode)
        {
                pFunctionPoint* lastPoint = (pFunctionPoint*)lastNode->GetData();               
                if( lastPoint->getRealX() != aX )
                {
                        addedPoint = realPoints.Append(newPoint)!=NULL;
                        //In case that the definition of points is being done backwards.
                        if( (aX < (lastPoint->getRealX()) ) && addedPoint )
                        {
                                if( realPoints.GetCount() == 2 )
                                {
                                        leftToRigthDef = false;                                 
                                }
                        if(order)
                                addedPoint = orderPoints();     
                        
                        }
                        else
                        {
                                if( realPoints.GetCount() == 2 )
                                {
                                        leftToRigthDef = true;                                  
                                }                       
                        }
                }                
        }
        else
        {
                addedPoint = realPoints.Append(newPoint)!=NULL;         
        }
        
        return addedPoint;
}

/*
 * Set Up startPoint, endPoint, maxY,maxX points        
*/
void pLogicalFunction::setUp()
{
        //sets the start point of the function
        setStartPoints();
        //set the Last point of the function
        setEndPoints();
        //set the min value in x and y between all the points of the function
        setMinPoints();
        //set the max value in x and y between all the points of the function
        setMaxPoints();
}


/*
 * sets the start point of the function
 */
void pLogicalFunction:: setStartPoints()
{
  wxNode* first=realPoints.GetFirst();
  if(first)
        {
          pFunctionPoint* startPoint=(pFunctionPoint*)first->GetData();
          setStartX(startPoint->getRealX());
          setStartY(startPoint->getRealY());
        }
  else
  {
          setStartX(-1);
          setStartY(-1);
  }
}
/*
 * sets the end point of the function
 */
void pLogicalFunction:: setEndPoints()
{
  wxNode* last=realPoints.GetLast();
  if(last)
  {
          pFunctionPoint* lastPoint=(pFunctionPoint*)last->GetData();
          setEndX(lastPoint->getRealX());
          setEndY(lastPoint->getRealY());
  }
  else
  {
          setEndX(-1);
          setEndY(-1);
  
  }
}

/*
 * set the min value in x and y between all the points of the function
 */
void pLogicalFunction::setMinPoints()
{
    int minX,minY;  
        wxNode* node=realPoints.GetFirst();
        if(node)
        {
                pFunctionPoint* point=(pFunctionPoint*)node->GetData();
                minX=point->getRealX();
                minY=point->getRealY();
                wxNode* nextNode=node->GetNext();
                while(nextNode)
                        {
                                point=(pFunctionPoint*)nextNode->GetData();
                                int x=point->getRealX();
                                int y=point->getRealY();
                                if(x<minX)
                                        minX=x;
                                if(y<minY)
                                        minY=y;
                                nextNode=nextNode->GetNext();
                        }
                setMinX(minX);
                setMinY(minY);
        }
        else
        {
                setMinX(0);
                setMinY(0);
        }
                
}
/*
 * set the max value in x and y between all the points of the function
 */
void pLogicalFunction::setMaxPoints()
{
    int maxX,maxY;  
        wxNode* node=realPoints.GetFirst();
        if(node)
        {
                pFunctionPoint* point=(pFunctionPoint*)node->GetData();
                maxX=point->getRealX();
                maxY=point->getRealY();
                wxNode* nextNode=node->GetNext();
                while(nextNode)
                        {
                                point=(pFunctionPoint*)nextNode->GetData();
                                int x=point->getRealX();
                                int y=point->getRealY();
                                if(x>maxX)
                                        maxX=x;
                                if(y>maxY)
                                        maxY=y;
                                nextNode=nextNode->GetNext();
                        }
                setMaxX(maxX);
                setMaxY(maxY);
        }
        else
        {
                setMaxX(0);
                setMaxY(0);
        }
}

bool pLogicalFunction::DeletePoint(int aX, int aY) 
{
        wxNode* node= realPoints.GetFirst();
        while(node)
        {
                pFunctionPoint* point=(pFunctionPoint*)node->GetData();
                if(point->getRealX()==aX && point->getRealY()==aY)
                {
                        realPoints.Erase(node);
                        return true;
                }
                node= node->GetNext();
        }

        return false;
}

bool pLogicalFunction::deletePointAt(int index)
{
        if(index!=-1)  
        {       
                wxNode* node=GetPointAt(index);
                
                if(node)//point!=NULL)
                {
                        //pFunctionPoint* point=(pFunctionPoint*)node->GetData(); // JPRx
                        bool deleted=realPoints.DeleteNode(node);
                        //delete point;
                        //delete node;
                        /*
                        if(index==0)
                                realPoints=realPoints.;
                        */
                        return deleted;
                }
        }
        return false;
}

bool pLogicalFunction::changePoint(wxPoint newCoords, int movingIndexPoint) 
{
        wxNode* changingNode = GetPointAt(movingIndexPoint);
        bool validChange = false; 
        int newX = newCoords.x;
        int newY = newCoords.y;
        pFunctionPoint* changingPoint = (pFunctionPoint*)changingNode -> GetData();
        bool hasPrevious = movingIndexPoint>0;
        bool hasNext = movingIndexPoint < realPoints.size()-1;
        
        wxNode* prevNode = hasPrevious ? changingNode ->GetPrevious() : NULL;
        wxNode* nextNode = hasNext ? changingNode -> GetNext() : NULL;
        
        if( hasPrevious )
        {
                pFunctionPoint* prevPoint = (pFunctionPoint*)prevNode -> GetData();
                if ( hasNext )
                {
                        pFunctionPoint* nextPoint = (pFunctionPoint*) nextNode -> GetData();
                        validChange = ((prevPoint->getRealX()) < newX) && ((nextPoint->getRealX()) > newX);
                        if ( (prevPoint->getRealX()) > newX )
                        {
                                newX = prevPoint->getRealX()+1;
                                validChange = true;
                        }
                        else if ( (nextPoint->getRealX()) < newX )
                        {
                                newX = nextPoint->getRealX()-1;
                                validChange = true;
                        }
                }
                else
                {
                        // Is the last point of the function.
                        if ( (prevPoint->getRealX()) < newX )
                        {
                                validChange = true;
                        }
                        else
                        {
                                newX = prevPoint->getRealX();
                                validChange = true;
                        }
                }               
        }       
        else
        {
                if ( hasNext )
                {
                        // Is the first point of the function.
                        pFunctionPoint* nextPoint = (pFunctionPoint*) nextNode -> GetData();
                        if ((nextPoint->getRealX()) > newX )
                        {
                                validChange = true;
                        }
                        else
                        {
                                newX = nextPoint->getRealX();
                                validChange = true;
                        }
                }               
        }
        if( validChange )
        {
                changingPoint -> setRealX( newX );
                changingPoint -> setRealY( newY );
        }
        return validChange;
}
/*
bool pLogicalFunction::hasPoint(wxPoint aPoint) 
{
        bool existPoint = false;
        wxNode *nextNode = realPoints.GetFirst();                 

        while (nextNode && !existPoint)
        {
                pFunctionPoint* nextPoint = (pFunctionPoint*)nextNode->GetData();
                if( nextPoint -> getRealX() == aPoint.x && nextPoint-> getRealY() == aPoint.y)          
                {
                        existPoint = true;
                }
                nextNode = nextNode->GetNext();
        }
        return existPoint;
}
*/
double* pLogicalFunction::getX_RealValues() 
{
        wxNode *nextNode = realPoints.GetFirst();
        int size = realPoints.GetCount();
        double * x_Values;
        int i=0;

        x_Values= new double[size];

        while (nextNode)
        {
                pFunctionPoint* nextPoint = (pFunctionPoint*)nextNode->GetData();
                x_Values[i] = nextPoint-> getRealX();
                nextNode = nextNode->GetNext();
                i++;
        }
        return x_Values;
}

double * pLogicalFunction::getY_RealValues() 
{  
        wxNode *nextNode = realPoints.GetFirst();
        int i =0;
        int size = realPoints.GetCount();
        double * y_Values;

        y_Values= new double[size];

        while (nextNode)
        {
                pFunctionPoint*  nextPoint = (pFunctionPoint*)nextNode->GetData();
                y_Values[i] = nextPoint-> getRealY();
                nextNode = nextNode->GetNext();
                i++;
        }
        return y_Values;
}

//-----------------------
// Persistence
//-----------------------

/*
 Save the points of the function
 format: 
        #number of points
        x<<"\t"<<y<<endl 
        for all (x,y) in the function
*/
void pLogicalFunction::save(wxString fileName)
{

        std::ofstream file;
        file.open( (const char*)(fileName.mb_str()) );
        if(file.is_open())
        {
                file << getSizePoints()<< std::endl;
                wxNode* node= realPoints.GetFirst();
                pFunctionPoint* p;
                while(node)
                {
                        p=(pFunctionPoint*)node->GetData();
                        file <<p->getRealX()<<"\t"<<p->getRealY()<<std::endl;
                        node=node->GetNext();
                }
        }
        file.close();
}
/*
 Load the points of a function 
*/
void pLogicalFunction::load(wxString fileName)
{
        std::string line;
        std::ifstream file;
        file.open( (const char*)(fileName.mb_str()) );
        
        if(file.is_open())
        {
                std::getline(file,line);
                int nPoints=atoi(line.c_str());
                int i=0;
                while(!file.eof() && i<nPoints)
                {
                        std::getline(file,line);
                        int pos=line.find("\t");
                        int size=line.size();
                        std::string x=line.substr(0,pos);
                        std::string y=line.substr(pos+1,size);
                        int x0=atoi(x.c_str());
                        int y0=atoi(y.c_str());
                        AddPoint(x0,y0);
                        i++;

                }
        }
}


//---------------------
//Getters and Setters
//---------------------

/*
 * STARTS
 */
void pLogicalFunction::setStartX(double aStartX) {
        this->_startX = aStartX;
}

double pLogicalFunction::getStartX() {
        return this->_startX;
}

void pLogicalFunction::setStartY(double aStartY) {
        this->_startY = aStartY;
}

double pLogicalFunction::getStartY() {
        return this->_startY;
}

/*
 * ENDS
 */
void pLogicalFunction::setEndX(double aEndX) {
        this->_endX = aEndX;
}

double pLogicalFunction::getEndX() {
        return this->_endX;
}

void pLogicalFunction::setEndY(double aEndY) {
        this->_endY = aEndY;
}

double pLogicalFunction::getEndY() {
        return this->_endY;
}
/*
 * SCALES
 */
void pLogicalFunction::setScaleX(double aScaleX) {
        this->_scaleX = aScaleX;
}

double pLogicalFunction::getScaleX() {
        return this->_scaleX;
}

void pLogicalFunction::setScaleY(double aScaleY) {
        this->_scaleY = aScaleY;
}

double pLogicalFunction::getScaleY() {
        return this->_scaleY;
}
/*
 * MINS
 */
void pLogicalFunction::setMinX(double aMinX) {
        this->_minX = aMinX;
}

double pLogicalFunction::getMinX() {
        return this->_minX;
}

void pLogicalFunction::setMinY(double aMinY) {
        this->_minY = aMinY;
}

double pLogicalFunction::getMinY() {
        return this->_minY;
}
/*
 * MAXS
 */
void pLogicalFunction::setMaxX(double aMaxX) {
        this->_maxX = aMaxX;
}

double pLogicalFunction::getMaxX() {
        return this->_maxX;
}

void pLogicalFunction::setMaxY(double aMaxY) {
        this->_maxY = aMaxY;
}

double pLogicalFunction::getMaxY() {
        return this->_maxY;
}

/*
 * OFFSETS
 */
void pLogicalFunction::setOffsetX(double aOffsetX) {
        this->_offsetX = aOffsetX;
}

double pLogicalFunction:: getOffsetX() {
        return this->_offsetX;
}

void pLogicalFunction:: setOffsetY(double aOffsetY) {
        this->_offsetY = aOffsetY;
}

double pLogicalFunction:: getOffsetY() {
        return this->_offsetY;
}

/*
 * TYPE
 */
void pLogicalFunction:: setType(int aType) {
        this->_type = aType;
}

int pLogicalFunction :: getType() {
        return this->_type;
}

/*
 * ValidPoint
 */
int pLogicalFunction :: getValidPointRange()
{
        return validPointRange;
}

void pLogicalFunction :: setValidPointRange(int theRange)
{
        validPointRange = theRange;
}
/*
* Returns the number of points that the function
* has
*/
int pLogicalFunction::getSizePoints()
{
        return realPoints.GetCount();
}
void pLogicalFunction::getDirection(bool &dir)
{
        dir = leftToRigthDef;
}

---