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+/*************************************************************************
+ *
+ * $RCSfile: b3dcolor.cxx,v $
+ *
+ * $Revision: 1.1.1.1 $
+ *
+ * last change: $Author: hr $ $Date: 2000-09-18 16:30:10 $
+ *
+ * The Contents of this file are made available subject to the terms of
+ * either of the following licenses
+ *
+ * - GNU Lesser General Public License Version 2.1
+ * - Sun Industry Standards Source License Version 1.1
+ *
+ * Sun Microsystems Inc., October, 2000
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2000 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software Foundation.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * Sun Industry Standards Source License Version 1.1
+ * =================================================
+ * The contents of this file are subject to the Sun Industry Standards
+ * Source License Version 1.1 (the "License"); You may not use this file
+ * except in compliance with the License. You may obtain a copy of the
+ * License at http://www.openoffice.org/license.html.
+ *
+ * Software provided under this License is provided on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ * See the License for the specific provisions governing your rights and
+ * obligations concerning the Software.
+ *
+ * The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ * Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#pragma hdrstop
+
+#ifndef _B3D_B3DCOLOR_HXX
+#include "b3dcolor.hxx"
+#endif
+
+/*************************************************************************
+|*
+|* Farbwert interpolieren
+|*
+\************************************************************************/
+
+void B3dColor::CalcInBetween(Color& rOld1, Color& rOld2, double t)
+{
+ if(rOld1 != rOld2)
+ {
+ UINT16 nFac = (UINT16)(t * 256.0);
+ UINT16 nNegFac = 256 - nFac;
+ SetRed((UINT8)(((nFac * (UINT16)rOld2.GetRed())
+ + (nNegFac * (UINT16)rOld1.GetRed())) >> 8));
+ SetGreen((UINT8)(((nFac * (UINT16)rOld2.GetGreen())
+ + (nNegFac * (UINT16)rOld1.GetGreen())) >> 8));
+ SetBlue((UINT8)(((nFac * (UINT16)rOld2.GetBlue())
+ + (nNegFac * (UINT16)rOld1.GetBlue())) >> 8));
+ SetTransparency((UINT8)(((nFac * (UINT16)rOld2.GetTransparency())
+ + (nNegFac * (UINT16)rOld1.GetTransparency())) >> 8));
+ }
+ else
+ {
+ SetColor(rOld1.GetColor());
+ }
+}
+
+/*************************************************************************
+|*
+|* Farbwert Mittelwert finden mit 2 Farben
+|*
+\************************************************************************/
+
+void B3dColor::CalcMiddle(Color& rOld1, Color& rOld2)
+{
+ if(rOld1 != rOld2)
+ {
+ SetRed((UINT8)(((UINT16)rOld1.GetRed()
+ + (UINT16)rOld2.GetRed())>>1));
+ SetGreen((UINT8)(((UINT16)rOld1.GetGreen()
+ + (UINT16)rOld2.GetGreen())>>1));
+ SetBlue((UINT8)(((UINT16)rOld1.GetBlue()
+ + (UINT16)rOld2.GetBlue())>>1));
+ SetTransparency((UINT8)(((UINT16)rOld1.GetTransparency()
+ + (UINT16)rOld2.GetTransparency())>>1));
+ }
+ else
+ {
+ SetColor(rOld1.GetColor());
+ }
+}
+
+/*************************************************************************
+|*
+|* Farbwert Mittelwert finden mit 3 Farben
+|*
+\************************************************************************/
+
+void B3dColor::CalcMiddle(Color& rOld1, Color& rOld2, Color& rOld3)
+{
+ if(rOld1 != rOld2)
+ {
+ if(rOld1 != rOld3)
+ {
+ // alle 3 unterschiedlich
+ SetRed((UINT8)(((UINT16)rOld1.GetRed()
+ + (UINT16)rOld2.GetRed()
+ + (UINT16)rOld3.GetRed()) / 3L));
+ SetGreen((UINT8)(((UINT16)rOld1.GetGreen()
+ + (UINT16)rOld2.GetGreen()
+ + (UINT16)rOld3.GetGreen()) / 3L));
+ SetBlue((UINT8)(((UINT16)rOld1.GetBlue()
+ + (UINT16)rOld2.GetBlue()
+ + (UINT16)rOld3.GetBlue()) / 3L));
+ SetTransparency((UINT8)(((UINT16)rOld1.GetTransparency()
+ + (UINT16)rOld2.GetTransparency()
+ + (UINT16)rOld3.GetTransparency()) / 3L));
+ }
+ else
+ {
+ // 1 != 2, 1 == 3
+ CalcMiddle(rOld1, rOld2);
+ }
+ }
+ else
+ {
+ // 1 == 2
+ if(rOld1 != rOld3)
+ {
+ CalcMiddle(rOld1, rOld3);
+ }
+ else
+ {
+ // 1==2, 1==3 -> alle gleich
+ SetColor(rOld1.GetColor());
+ }
+ }
+}
+
+/*************************************************************************
+|*
+|* Ermittle den Abstand der beiden Farben im Farbraum
+|* Dies geschieht OHNE Wurzelziehen, d.h. es wird als Metrik im RGB
+|* Farbraum hier das Quadrat der 'echten' (gewohnten) Entfernung benutzt
+|*
+\************************************************************************/
+
+ULONG B3dColor::GetDistance(Color& rOld)
+{
+ // Bei Gleichheit kein Abstand
+ if(*this == rOld)
+ return 0L;
+
+ // Abstand ermitteln
+ long nDistRed = rOld.GetRed() > GetRed() ?
+ rOld.GetRed() - GetRed() :
+ GetRed() - rOld.GetRed();
+ long nDistGreen = rOld.GetGreen() > GetGreen() ?
+ rOld.GetGreen() - GetGreen() :
+ GetGreen() - rOld.GetGreen();
+ long nDistBlue = rOld.GetBlue() > GetBlue() ?
+ rOld.GetBlue() - GetBlue() :
+ GetBlue() - rOld.GetBlue();
+ return (ULONG)(nDistRed * nDistRed
+ + nDistGreen * nDistGreen
+ + nDistBlue * nDistBlue);
+}
+
+/*************************************************************************
+|*
+|* Farbaddition mit clamping
+|*
+\************************************************************************/
+
+B3dColor& B3dColor::operator+= (const B3dColor& rCol)
+{
+ UINT16 nZwi;
+ if(rCol.GetRed())
+ {
+ nZwi = (UINT16)GetRed() + (UINT16)rCol.GetRed();
+ if(nZwi > 255)
+ nZwi = 255;
+ SetRed((UINT8)nZwi);
+ }
+ if(rCol.GetGreen())
+ {
+ nZwi = (UINT16)GetGreen() + (UINT16)rCol.GetGreen();
+ if(nZwi > 255)
+ nZwi = 255;
+ SetGreen((UINT8)nZwi);
+ }
+ if(rCol.GetBlue())
+ {
+ nZwi = (UINT16)GetBlue() + (UINT16)rCol.GetBlue();
+ if(nZwi > 255)
+ nZwi = 255;
+ SetBlue((UINT8)nZwi);
+ }
+ if(rCol.GetTransparency())
+ {
+ nZwi = (UINT16)GetTransparency() + (UINT16)rCol.GetTransparency();
+ if(nZwi > 255)
+ nZwi = 255;
+ SetTransparency((UINT8)nZwi);
+ }
+ return *this;
+}
+
+/*************************************************************************
+|*
+|* Farbsubtraktion mit clamping
+|*
+\************************************************************************/
+
+B3dColor& B3dColor::operator-= (const B3dColor& rCol)
+{
+ INT16 nZwi;
+ if(rCol.GetRed())
+ {
+ nZwi = (INT16)GetRed() - (INT16)rCol.GetRed();
+ if(nZwi < 0)
+ nZwi = 0;
+ SetRed((UINT8)nZwi);
+ }
+ if(rCol.GetGreen())
+ {
+ nZwi = (INT16)GetGreen() - (INT16)rCol.GetGreen();
+ if(nZwi < 0)
+ nZwi = 0;
+ SetGreen((UINT8)nZwi);
+ }
+ if(rCol.GetBlue())
+ {
+ nZwi = (INT16)GetBlue() - (INT16)rCol.GetBlue();
+ if(nZwi < 0)
+ nZwi = 0;
+ SetBlue((UINT8)nZwi);
+ }
+ if(rCol.GetTransparency())
+ {
+ nZwi = (INT16)GetTransparency() - (INT16)rCol.GetTransparency();
+ if(nZwi < 0)
+ nZwi = 0;
+ SetTransparency((UINT8)nZwi);
+ }
+ return *this;
+}
+
+/*************************************************************************
+|*
+|* Farbaddition mit clamping, neue Farbe erzeugen
+|*
+\************************************************************************/
+
+B3dColor B3dColor::operator+ (const B3dColor& rCol) const
+{
+ B3dColor aSum = *this;
+ aSum += rCol;
+ return aSum;
+}
+
+/*************************************************************************
+|*
+|* Farbsubtraktion mit clamping, neue Farbe erzeugen
+|*
+\************************************************************************/
+
+B3dColor B3dColor::operator- (const B3dColor& rCol) const
+{
+ B3dColor aSub = *this;
+ aSub -= rCol;
+ return aSub;
+}
+
+/*************************************************************************
+|*
+|* Farbmultiplikation, d.h. Gewichtung der Farben aneinander
+|*
+\************************************************************************/
+
+B3dColor& B3dColor::operator*= (const B3dColor& rCol)
+{
+ // urspruengliches Objekt ist die Farbe, rCol die zu berechnende
+ // Gewichtung
+ SetRed((UINT8)(((((UINT16)GetRed())+1)
+ * (UINT16)rCol.GetRed()) >> 8));
+ SetGreen((UINT8)(((((UINT16)GetGreen())+1)
+ * (UINT16)rCol.GetGreen()) >> 8));
+ SetBlue((UINT8)(((((UINT16)GetBlue())+1)
+ * (UINT16)rCol.GetBlue()) >> 8));
+ SetTransparency((UINT8)(((((UINT16)GetTransparency())+1)
+ * (UINT16)rCol.GetTransparency()) >> 8));
+ return *this;
+}
+
+/*************************************************************************
+|*
+|* Farbmultiplikation, neue Farbe erzeugen
+|*
+\************************************************************************/
+
+B3dColor B3dColor::operator* (const B3dColor& rCol) const
+{
+ B3dColor aMul = *this;
+ aMul *= rCol;
+ return aMul;
+}
+
+/*************************************************************************
+|*
+|* Farbmultiplikation mit Faktor im Bereich [0.0 .. 1.0]
+|*
+\************************************************************************/
+
+B3dColor& B3dColor::operator*= (const double fVal)
+{
+ ULONG nVal = (ULONG)(fVal * 65536.0);
+ SetRed((UINT8)(((ULONG)GetRed() * nVal) >> 16));
+ SetGreen((UINT8)(((ULONG)GetGreen() * nVal) >> 16));
+ SetBlue((UINT8)(((ULONG)GetBlue() * nVal) >> 16));
+ SetTransparency((UINT8)(((ULONG)GetTransparency() * nVal) >> 16));
+ return *this;
+}
+
+/*************************************************************************
+|*
+|* Farbmultiplikation mit Faktor, neue Farbe erzeugen
+|*
+\************************************************************************/
+
+B3dColor B3dColor::operator* (const double fVal) const
+{
+ B3dColor aMul = *this;
+ aMul *= fVal;
+ return aMul;
+}
+
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