/* -*- C++ -*-

  $Id: GradientShape.cc,v 1.2 1998/11/02 11:25:04 sattler 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 "GradientShape.h"
#include <qpainter.h>

GradientShape::GradientShape () : isValid (false) {
}

void GradientShape::setRegion (const QRegion& r) {
  region = r;
  setInvalid ();
}

void GradientShape::setBox (const Rect& r) {
  box = r.normalize ();
  setInvalid ();
}

void GradientShape::setGradient (const Gradient& g) {
  gradient = g;
  setInvalid ();
}

void GradientShape::draw (QPainter& p) {
  p.save ();
  p.setClipRegion (region);
  p.setClipping (true);
  p.drawPixmap (box.left (), box.top (), pixmap);
  p.restore ();
}

void GradientShape::updatePixmap () {
  if (!region.isEmpty () && !box.empty ()) {
    isValid = true;
    pixmap = gradient.createPixmap (box.width (), box.height ());
  }
}