box.cpp

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#include <qfiledialog.h>
#include "box.h"
#include "image.h"
#include "runtime.h"

QString BoxValue::toString()
{
  return QString("(")+
    tl.toString()+QString(", ")+
    tr.toString()+QString(", ")+
    br.toString()+QString(", ")+
    bl.toString()+QString(")");
}

bool BoxValue::equals_same_type(Value * other)
{
  BoxValue *o = (BoxValue*)other;
  return tl.equals(o->tl) &&
    tr.equals(o->tr) &&
    bl.equals(o->bl) &&
    br.equals(o->br);
}

Value * Runtime::box(Value * image)
{
  if (image==NULL)  return NULL;
  if (typeid(*image)!=typeid(ImageValue)) return NULL;
  ImageValue * I = (ImageValue*)image;
  BoxPicker ip(I);
  if (ip.exec()==QDialog::Accepted)
    return ip.value();
  return NULL;
}

Value * Runtime::box(vector<Value*> v)
{
  if (v.size()==1) return box(v[0]);
  return NULL;
}

void BoxPicker::nextPoint(PointValue p, bool final)
{
  if (nr == 0)
    {
      box.tl = p;
      nr = 1;
    }
  else if (nr == 1)
    {
      if (final)
        {
          box.br = p;
          box.tr.x = box.br.x;
          box.tr.y = box.tl.y;
          box.bl.x = box.tl.x;
          box.bl.y = box.br.y;
          accept();
        }
      else
        {
          box.tr = p;
          nr = 2;
        }
    }
  else if (nr == 2)
    {
      box.br = p;
      nr = 3;
    }
  else if (nr == 3)
    {
      box.bl = p;
      accept();
    }
}

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