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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Graphics Extension Library source file
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*
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*/
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#include "GfxEllipseIteratorP.h"
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#include "GfxEllipse2D.h"
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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// --------------------------------------------------------------------------
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// CGfxEllipseIteratorP::CGfxEllipseIteratorP( TGfxEllipse2D* aEllipse,
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// ---------------------------------------------------------------------------
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CGfxEllipseIteratorP::CGfxEllipseIteratorP( TGfxEllipse2D* aEllipse,
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TGfxAffineTransform* aTransform )
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{
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TFloatFixPt KZero;
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if ( aEllipse->iWidth < KZero )
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aEllipse->iWidth = KZero;
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if ( aEllipse->iHeight < KZero )
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aEllipse->iHeight = KZero;
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iEllipse = aEllipse;
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iTransform = aTransform;
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}
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// --------------------------------------------------------------------------
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// TGfxSegType CGfxEllipseIteratorP::CurrentSegment( TFloatFixPt* aCoords )
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// ---------------------------------------------------------------------------
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TGfxSegType CGfxEllipseIteratorP::CurrentSegment( TFloatFixPt* aCoords )
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{
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TGfxSegType segtype;
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TInt32 pts = 3;
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TFloatFixPt px[12], py[12];
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#ifdef SVG_FLOAT_BUILD
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TFloatFixPt cx = iEllipse->iX + (iEllipse->iWidth * TFloatFixPt(.5f));
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TFloatFixPt cy = iEllipse->iY + (iEllipse->iHeight * TFloatFixPt(.5f));
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TFloatFixPt offx = iEllipse->iWidth * TFloatFixPt(.257f);
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TFloatFixPt offy = iEllipse->iHeight * TFloatFixPt(.257f);
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#else
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TFloatFixPt cx = iEllipse->iX + (iEllipse->iWidth >> 1);
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TFloatFixPt cy = iEllipse->iY + (iEllipse->iHeight >> 1);
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TFloatFixPt offx = TFloatFixPt( 0x41ca, ETrue ) * iEllipse->iWidth;
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TFloatFixPt offy = TFloatFixPt( 0x41ca, ETrue ) * iEllipse->iHeight;
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#endif
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px[0] = px[1] = px[11] = iEllipse->iX;
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px[2] = px[10] = cx - offx;
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px[3] = px[9] = cx;
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px[4] = px[8] = cx + offx;
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px[5] = px[6] = px[7] = iEllipse->iX + iEllipse->iWidth;
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py[2] = py[3] = py[4] = iEllipse->iY;
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py[1] = py[5] = cy - offy;
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py[0] = py[6] = cy;
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py[7] = py[11] = cy + offy;
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py[8] = py[9] = py[10] = iEllipse->iY + iEllipse->iHeight;
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TFloatFixPt* p = aCoords;
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switch ( iIdx )
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{
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case 0:
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p[0] = px[0];
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p[1] = py[0];
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segtype = EGfxSegMoveTo;
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pts = 1;
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break;
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case 1:
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p[0] = px[1];
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p[1] = py[1];
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p[2] = px[2];
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p[3] = py[2];
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p[4] = px[3];
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p[5] = py[3];
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segtype = EGfxSegCubicTo;
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break;
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case 2:
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p[0] = px[4];
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p[1] = py[4];
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p[2] = px[5];
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p[3] = py[5];
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p[4] = px[6];
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p[5] = py[6];
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segtype = EGfxSegCubicTo;
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break;
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case 3:
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p[0] = px[7];
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p[1] = py[7];
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p[2] = px[8];
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p[3] = py[8];
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p[4] = px[9];
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p[5] = py[9];
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segtype = EGfxSegCubicTo;
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break;
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case 4:
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p[0] = px[10];
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p[1] = py[10];
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p[2] = px[11];
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p[3] = py[11];
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p[4] = px[0];
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p[5] = py[0];
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segtype = EGfxSegCubicTo;
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break;
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default:
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segtype = EGfxSegClose;
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pts = 0;
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}
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if ( !iTransform->IsIdentity() && pts > 0 )
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{
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iTransform->Transform( aCoords, aCoords, pts );
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}
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return segtype;
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}
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// --------------------------------------------------------------------------
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// TBool CGfxEllipseIteratorP::IsDone()
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// ---------------------------------------------------------------------------
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TBool CGfxEllipseIteratorP::IsDone()
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{
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return ( iIdx > 4 );
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}
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// --------------------------------------------------------------------------
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// void CGfxEllipseIteratorP::NextL()
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// ---------------------------------------------------------------------------
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void CGfxEllipseIteratorP::NextL()
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{
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iIdx++;
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}
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