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fet  5.18.0
Public Member Functions | Public Attributes
ConstraintTeachersMinDaysPerWeek Class Reference

#include <timeconstraint.h>

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List of all members.

Public Member Functions

 ConstraintTeachersMinDaysPerWeek ()
 ConstraintTeachersMinDaysPerWeek (double wp, int mindays)
bool computeInternalStructure (QWidget *parent, Rules &r)
 Computes the internal structure for this constraint.
bool hasInactiveActivities (Rules &r)
QString getXmlDescription (Rules &r)
 Returns an XML description of this constraint.
QString getDescription (Rules &r)
 Returns a small description string for this constraint.
QString getDetailedDescription (Rules &r)
 Returns a detailed description string for this constraint.
double fitness (Solution &c, Rules &r, QList< double > &cl, QList< QString > &dl, QString *conflictsString=NULL)
 The function that calculates the fitness of a solution, according to this constraint.
bool isRelatedToActivity (Rules &r, Activity *a)
 Returns true if this constraint is related to this activity.
bool isRelatedToTeacher (Teacher *t)
 Returns true if this constraint is related to this teacher.
bool isRelatedToSubject (Subject *s)
 Returns true if this constraint is related to this subject.
bool isRelatedToActivityTag (ActivityTag *s)
 Returns true if this constraint is related to this activity tag.
bool isRelatedToStudentsSet (Rules &r, StudentsSet *s)
 Returns true if this constraint is related to this students set.
bool hasWrongDayOrHour (Rules &r)
bool canRepairWrongDayOrHour (Rules &r)
bool repairWrongDayOrHour (Rules &r)

Public Attributes

int minDaysPerWeek
double weightPercentage
 The percentage weight of this constraint, 100% compulsory, 0% non-compulsory.
bool active
QString comments
int type
 Specifies the type of this constraint (using the above constants).

Detailed Description

Definition at line 1143 of file timeconstraint.h.


Constructor & Destructor Documentation

Definition at line 14221 of file timeconstraint.cpp.

 : TimeConstraint(wp)
 {
       assert(mindays>0);
       this->minDaysPerWeek=mindays;

       this->type=CONSTRAINT_TEACHERS_MIN_DAYS_PER_WEEK;
}

Member Function Documentation

Implements TimeConstraint.

Definition at line 14396 of file timeconstraint.cpp.

{
       assert(hasWrongDayOrHour(r));
       
       return true;
}

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bool ConstraintTeachersMinDaysPerWeek::computeInternalStructure ( QWidget *  parent,
Rules r 
) [virtual]

Computes the internal structure for this constraint.

It returns false if the constraint is an activity related one and it depends on only inactive activities.

Implements TimeConstraint.

Definition at line 14230 of file timeconstraint.cpp.

{
       Q_UNUSED(parent);
       Q_UNUSED(r);

       return true;
}
double ConstraintTeachersMinDaysPerWeek::fitness ( Solution c,
Rules r,
QList< double > &  cl,
QList< QString > &  dl,
QString *  conflictsString = NULL 
) [virtual]

The function that calculates the fitness of a solution, according to this constraint.

We need the rules to compute this fitness factor. If conflictsString!=NULL, it will be initialized with a text explaining where this restriction is broken.

Implements TimeConstraint.

Definition at line 14295 of file timeconstraint.cpp.

{
       //if the matrices subgroupsMatrix and teachersMatrix are already calculated, do not calculate them again!
       if(!c.teachersMatrixReady || !c.subgroupsMatrixReady){
              c.teachersMatrixReady=true;
              c.subgroupsMatrixReady=true;
              subgroups_conflicts = c.getSubgroupsMatrix(r, subgroupsMatrix);
              teachers_conflicts = c.getTeachersMatrix(r, teachersMatrix);

              c.changedForMatrixCalculation=false;
       }

       int nbrokentotal=0;
       for(int i=0; i<r.nInternalTeachers; i++){
              int nbroken;

              nbroken=0;
              //int i=this->teacher_ID;
              int nd=0;
              for(int d=0; d<r.nDaysPerWeek; d++){
                     for(int h=0; h<r.nHoursPerDay; h++){
                            if(teachersMatrix[i][d][h]>0){
                                   nd++;
                                   break;
                            }
                     }
              }

              if(nd<this->minDaysPerWeek){
                     nbroken+=this->minDaysPerWeek-nd;
                     nbrokentotal+=nbroken;

                     if(conflictsString!=NULL){
                            QString s=(tr(
                             "Time constraint teachers min %1 days per week broken for teacher %2.")
                             .arg(CustomFETString::number(this->minDaysPerWeek))
                             .arg(r.internalTeachersList[i]->name)
                             )
                             +" "
                             +
                             tr("This increases the conflicts total by %1").arg(CustomFETString::number(double(nbroken)*weightPercentage/100));
                                   
                            dl.append(s);
                            cl.append(double(nbroken)*weightPercentage/100);
                     
                            *conflictsString+= s+"\n";
                     }
              }
       }

       if(c.nPlacedActivities==r.nInternalActivities)
              if(weightPercentage==100)
                     assert(nbrokentotal==0);
                     
       return weightPercentage/100 * nbrokentotal;
}

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Returns a small description string for this constraint.

Implements TimeConstraint.

Definition at line 14256 of file timeconstraint.cpp.

                                                                {
       Q_UNUSED(r);

       QString begin=QString("");
       if(!active)
              begin="X - ";
              
       QString end=QString("");
       if(!comments.isEmpty())
              end=", "+tr("C: %1", "Comments").arg(comments);
              
       QString s;
       s+=tr("Teachers min days per week");s+=", ";
       s+=tr("WP:%1\%", "Weight percentage").arg(CustomFETString::number(this->weightPercentage));s+=", ";
       s+=tr("mD:%1", "Minimum days per week").arg(this->minDaysPerWeek);

       return begin+s+end;
}

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Returns a detailed description string for this constraint.

Implements TimeConstraint.

Definition at line 14275 of file timeconstraint.cpp.

                                                                        {
       Q_UNUSED(r);

       QString s=tr("Time constraint");s+="\n";
       s+=tr("All teachers must respect the minimum number of days per week");s+="\n";
       s+=tr("Weight (percentage)=%1\%").arg(CustomFETString::number(this->weightPercentage));s+="\n";
       s+=tr("Minimum days per week=%1").arg(this->minDaysPerWeek);s+="\n";

       if(!active){
              s+=tr("Active=%1", "Refers to a constraint").arg(yesNoTranslated(active));
              s+="\n";
       }
       if(!comments.isEmpty()){
              s+=tr("Comments=%1").arg(comments);
              s+="\n";
       }

       return s;
}

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Returns an XML description of this constraint.

Implements TimeConstraint.

Definition at line 14244 of file timeconstraint.cpp.

                                                                   {
       Q_UNUSED(r);

       QString s="<ConstraintTeachersMinDaysPerWeek>\n";
       s+="   <Weight_Percentage>"+CustomFETString::number(this->weightPercentage)+"</Weight_Percentage>\n";
       s+="   <Minimum_Days_Per_Week>"+CustomFETString::number(this->minDaysPerWeek)+"</Minimum_Days_Per_Week>\n";
       s+="   <Active>"+trueFalse(active)+"</Active>\n";
       s+="   <Comments>"+protect(comments)+"</Comments>\n";
       s+="</ConstraintTeachersMinDaysPerWeek>\n";
       return s;
}

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Implements TimeConstraint.

Definition at line 14238 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       return false;
}

Implements TimeConstraint.

Definition at line 14388 of file timeconstraint.cpp.

{
       if(minDaysPerWeek>r.nDaysPerWeek)
              return true;
       
       return false;
}

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Returns true if this constraint is related to this activity.

Implements TimeConstraint.

Definition at line 14352 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       Q_UNUSED(a);

       return false;
}

Returns true if this constraint is related to this activity tag.

Implements TimeConstraint.

Definition at line 14373 of file timeconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this students set.

Implements TimeConstraint.

Definition at line 14380 of file timeconstraint.cpp.

{
       Q_UNUSED(r);
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this subject.

Implements TimeConstraint.

Definition at line 14366 of file timeconstraint.cpp.

{
       Q_UNUSED(s);

       return false;
}

Returns true if this constraint is related to this teacher.

Implements TimeConstraint.

Definition at line 14360 of file timeconstraint.cpp.

{
       Q_UNUSED(t);
       return true;
}

Implements TimeConstraint.

Definition at line 14403 of file timeconstraint.cpp.

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Member Data Documentation

bool TimeConstraint::active [inherited]

Definition at line 146 of file timeconstraint.h.

QString TimeConstraint::comments [inherited]

Definition at line 148 of file timeconstraint.h.

Definition at line 1147 of file timeconstraint.h.

int TimeConstraint::type [inherited]

Specifies the type of this constraint (using the above constants).

Definition at line 153 of file timeconstraint.h.

The percentage weight of this constraint, 100% compulsory, 0% non-compulsory.

Definition at line 144 of file timeconstraint.h.


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