#include "area.h"
#include "listobj.h"
#include "drawing.h"

Drawing* Area::find( int x, int y )
{
  ListIter it(&objs);
  it.first();
  while (! it.end() )
  {
	 Drawing* o = (Drawing*)it.next();
	 if ( o->pick(x,y) ) return o;
  }
  return 0;
}

void Area::redraw()
{
  dgSetColor(dgLIGHT_GRAY);
  dgFill(0,0,dgWidth(), dgHeight());
  ListIter it(&objs);
  it.last();
  while (! it.end() )
  {
	 Drawing* o = (Drawing*)it.prev();
	 o->draw();
  }
}

void Area::click1(int x, int y)
{
	Drawing* d = find(x,y);
	if ( d )
	{
		d->click1(x,y);
		current = d;
		ox = x; oy = y;
		dgSetMode(dgXOR);
		d->draft();
	}
	else emptyclick(x,y);
}

void Area::unclick1(int x, int y)
{
	if (current)
	{
		dgSetMode(dgCOPY);
		redraw();
		current->unclick1(x,y);
		current = 0;
	}
}

void Area::click2  (int x, int y)
{
	Drawing* d = find(x,y);
	if ( d ) d->click2(x,y);
}

void Area::unclick2(int x, int y)
{
	Drawing* d = find(x,y);
	if ( d ) d->unclick2(x,y);
}

void Area::motion  (int x, int y)
{
	if (current)
	{
		current->draft();
		current->move(x-ox, y-oy);
		current->draft();
		ox = x; oy = y;
	}
	else
	{
		Drawing* d = find(x,y);
		if ( d ) d->motion(x,y);
	}
}