/* -*- C++ -*-

  $Id: ScaleCmd.cc,v 1.2 1998/08/19 10:44:12 kulow Exp $

  This file is part of KIllustrator.
  Copyright (C) 1998 Kai-Uwe Sattler (kus@iti.cs.uni-magdeburg.de)

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU Library General Public License as
  published by  
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU Library General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <iostream.h>
#include "ScaleCmd.h"

ScaleCmd::ScaleCmd (GDocument* doc, int mask, float x, float y) : 
  ObjectManipCmd (doc, i18n("Scale")) 
{
  box = doc->boundingBoxForSelection ();
  sx = x; sy = y;
  hmask = mask;
}

ScaleCmd::ScaleCmd (GDocument* doc, int mask, float x, float y, Rect r) :
  ObjectManipCmd (doc, i18n("Scale")) {
  sx = x; sy = y;
  hmask = mask;
  box = r;
}

void ScaleCmd::execute () {
  QWMatrix m1, m2, m3;

  float xoff = box.x (), yoff = box.y ();
  float xback = xoff, yback = yoff;

  if (hmask & Handle_Left)
    xback = box.left () + box.width () * (1 - sx);
  if (hmask & Handle_Top)
    yback = box.top () + box.height () * (1 - sy);

  m1.translate (-xoff, -yoff);
  m2.scale (sx, sy);
  m3.translate (xback, yback);

  ObjectManipCmd::execute ();

  for (unsigned int i = 0; i < objects.count (); i++) {
    objects[i]->transform (m1);
    objects[i]->transform (m2);
    objects[i]->transform (m3, true);
  }
}