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+// -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4; -*-
+/* This file is part of the KDE project
+ Copyright (C) 1998, 1999 Reginald Stadlbauer <reggie@kde.org>
+
+ This library 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 library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#ifndef kpgradientcollection_h
+#define kpgradientcollection_h
+
+#include <qptrlist.h>
+#include "global.h"
+#include "KPrGradient.h"
+
+class QPixmap;
+
+/**
+ * Class: KPrGradientCollection
+ * Holds a collection of gradients, and is able to provide a gradient
+ * for a given set of gradient parameters.
+ * The idea is to be able to share gradients among pages which need the same one.
+ * This class is currently only used for KPBackground, not for objects with gradients
+ * (those having much less chances of sharing).
+ */
+class KPrGradientCollection
+{
+public:
+ KPrGradientCollection()
+ { gradientList.setAutoDelete( true ); }
+
+ ~KPrGradientCollection()
+ { gradientList.clear(); }
+
+ /** Retrieve or create gradient for the given parameters */
+ const QPixmap& getGradient( const QColor &_color1, const QColor &_color2, BCType _bcType, const QSize &_size,
+ bool _unbalanced, int _xfactor, int _yfactor, bool addref = true );
+
+ /** Remove reference to gradient with the given parameters */
+ void removeRef( const QColor &_color1, const QColor &_color2, BCType _bcType, const QSize &_size,
+ bool _unbalanced, int _xfactor, int _yfactor );
+
+protected:
+ KPrGradient* inGradientList( const QColor &_color1, const QColor &_color2, BCType _bcType, const QSize &_size,
+ bool _unbalanced, int _xfactor, int _yfactor ) const;
+
+private:
+ QPtrList<KPrGradient> gradientList;
+};
+
+#endif