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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 "GfxGeneralPath.h"
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#include "GfxGeneralPathIteratorP.h"
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#include "GfxFlatteningPathIterator.h"
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// ---------------------------------------------------------------------------
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// Constructors
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// ---------------------------------------------------------------------------
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// --------------------------------------------------------------------------
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// CGfxGeneralPath* CGfxGeneralPath::NewL()
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// ---------------------------------------------------------------------------
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CGfxGeneralPath* CGfxGeneralPath::NewL()
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{
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CGfxGeneralPath* self = NewLC();
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CleanupStack::Pop();
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return self;
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}
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// --------------------------------------------------------------------------
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// CGfxGeneralPath* CGfxGeneralPath::NewLC()
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// ---------------------------------------------------------------------------
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CGfxGeneralPath* CGfxGeneralPath::NewLC()
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{
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CGfxGeneralPath* self = new ( ELeave ) CGfxGeneralPath;
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CleanupStack::PushL( self );
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self->ConstructL();
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return self;
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}
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// --------------------------------------------------------------------------
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// CGfxGeneralPath::CGfxGeneralPath()
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// ---------------------------------------------------------------------------
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CGfxGeneralPath::CGfxGeneralPath()
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{
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::ConstructL()
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::ConstructL()
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{
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iPointTypes = new ( ELeave ) RArray<TUint32>( 4 );
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iPointTypes->AppendL(NULL);
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iPointTypes->Remove(0);
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iPointCoords = new ( ELeave ) RArray<TFloatFixPt>( 8 );
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iPointCoords->AppendL(NULL);
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iPointCoords->Remove(0);
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iPathSegmentTypeArray = NULL;
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iCount = 0;
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}
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// --------------------------------------------------------------------------
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// CGfxGeneralPath::~CGfxGeneralPath()
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// ---------------------------------------------------------------------------
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CGfxGeneralPath::~CGfxGeneralPath()
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{
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if ( iPointTypes )
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{
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iPointTypes->Close();
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delete iPointTypes;
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iPointTypes = NULL;
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}
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if ( iPointCoords )
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{
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iPointCoords->Close();
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delete iPointCoords;
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iPointCoords = NULL;
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}
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if (iPathSegmentTypeArray)
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{
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delete [] iPathSegmentTypeArray;
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iPathSegmentTypeArray = NULL;
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}
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}
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const TUint32 KSegClose = ( TUint32 ) EGfxSegClose;
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// --------------------------------------------------------------------------
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// TFloatFixPt CGfxGeneralPath::AreaSize()
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// ---------------------------------------------------------------------------
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TFloatFixPt CGfxGeneralPath::AreaSize()
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{
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return TFloatFixPt(0);
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::ClosePathL()
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::ClosePathL()
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{
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TInt count = iPointTypes->Count();
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if ( count > 0 && (*iPointTypes)[count - 1] != KSegClose )
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{
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iPointTypes->AppendL( KSegClose );
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}
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::HorizonToL( TFloatFixPt& aX, TBool aAbsolute )
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::HorizonToL( TFloatFixPt& aX, TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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aX += iLastX;
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}
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else
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{
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aX += iPointCoords->operator[]( iPointCoords->Count() - 2 );
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}
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}
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TUint32 KSegLineto = ( TUint32 ) EGfxSegLineTo; // const
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iPointTypes->AppendL( KSegLineto );
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iPointCoords->AppendL( aX );
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TFloatFixPt tmpY = ( iPointCoords->Count() < 2 ) ? TFloatFixPt( 0 ) : iPointCoords->operator[]( iPointCoords->Count() - 2 );
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iPointCoords->AppendL( tmpY );
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::VertToL( TFloatFixPt& aY, TBool aAbsolute )
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::VertToL( TFloatFixPt& aY, TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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aY += iLastY;
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}
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else
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{
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aY += iPointCoords->operator[]( iPointCoords->Count() - 1 );
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}
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}
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TUint32 KSegLineto = ( TUint32 ) EGfxSegLineTo; // const
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iPointTypes->AppendL( KSegLineto );
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TFloatFixPt tmpX = ( iPointCoords->Count() < 2 ) ? TFloatFixPt( 0 ) : iPointCoords->operator[]( iPointCoords->Count() - 2 );
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iPointCoords->AppendL( tmpX );
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iPointCoords->AppendL( aY );
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::LineToL( TFloatFixPt& aX,
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::LineToL( TFloatFixPt& aX,
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TFloatFixPt& aY,
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TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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TFloatFixPt lastX = iPointCoords->operator[]( iPointCoords->Count() - 2 );
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TFloatFixPt lastY = iPointCoords->operator[]( iPointCoords->Count() - 1 );
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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lastX = iLastX;
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lastY = iLastY;
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}
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aX += lastX;
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aY += lastY;
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}
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TUint32 KSegLineto = ( TUint32 ) EGfxSegLineTo; // const
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iPointTypes->AppendL( KSegLineto );
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iPointCoords->AppendL( aX );
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iPointCoords->AppendL( aY );
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::RemoveLastPathCommand()
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::RemoveLastPathCommand()
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{
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TInt aTypeCount = iPointTypes->Count();
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TInt aPointCount = iPointCoords->Count();
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if ( aPointCount >= 2 )
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{
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//we need to remove the last amount from iLastX
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iLastX -= (*iPointCoords)[aPointCount - 2];
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iLastY -= (*iPointCoords)[aPointCount - 1];
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}
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if ( aTypeCount > 0 )
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{
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iPointTypes->Remove( aTypeCount - 1 );
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if ( aPointCount >= 2 )
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{
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iPointCoords->Remove( aPointCount - 1 );
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iPointCoords->Remove( aPointCount - 2 );
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}
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}
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::MoveToL( TFloatFixPt& aX,
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::MoveToL( TFloatFixPt& aX,
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TFloatFixPt& aY,
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TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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aX += iLastX;
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aY += iLastY;
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}
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else
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{
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TFloatFixPt lastX = iPointCoords->operator[]( iPointCoords->Count() -
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2 );
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TFloatFixPt lastY = iPointCoords->operator[]( iPointCoords->Count() -
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1 );
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aX += lastX;
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aY += lastY;
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}
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}
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TUint32 KSegMoveto = ( TUint32 ) EGfxSegMoveTo; // const
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iPointTypes->AppendL( KSegMoveto );
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iPointCoords->AppendL( aX );
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iPointCoords->AppendL( aY );
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// Save initial point of a new segment
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// Could be the next initial point
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iLastX = aX;
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iLastY = aY;
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::QuadToL( TFloatFixPt& aX1,
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::QuadToL( TFloatFixPt& aX1,
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TFloatFixPt& aY1,
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TFloatFixPt& aX2,
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TFloatFixPt& aY2,
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TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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TFloatFixPt lastX = iPointCoords->operator[]( iPointCoords->Count() - 2 );
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TFloatFixPt lastY = iPointCoords->operator[]( iPointCoords->Count() - 1 );
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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lastX = iLastX;
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lastY = iLastY;
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}
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aX1 += lastX;
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aY1 += lastY;
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aX2 += lastX;
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aY2 += lastY;
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}
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TUint32 KSegQuadto = ( TUint32 ) EGfxSegQuadTo;
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iPointTypes->AppendL( KSegQuadto );
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iPointCoords->AppendL( aX1 );
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iPointCoords->AppendL( aY1 );
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iPointCoords->AppendL( aX2 );
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iPointCoords->AppendL( aY2 );
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::CubicToL( TFloatFixPt& aX1,
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::CubicToL( TFloatFixPt& aX1,
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TFloatFixPt& aY1,
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TFloatFixPt& aX2,
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TFloatFixPt& aY2,
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TFloatFixPt& aX3,
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TFloatFixPt& aY3,
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TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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TFloatFixPt lastX = iPointCoords->operator[]( iPointCoords->Count() - 2 );
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TFloatFixPt lastY = iPointCoords->operator[]( iPointCoords->Count() - 1 );
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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lastX = iLastX;
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lastY = iLastY;
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}
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aX1 += lastX;
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aY1 += lastY;
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aX2 += lastX;
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aY2 += lastY;
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aX3 += lastX;
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aY3 += lastY;
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}
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TUint32 KSegCubicto = ( TUint32 ) EGfxSegCubicTo; // const
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iPointTypes->AppendL( KSegCubicto );
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iPointCoords->AppendL( aX1 );
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iPointCoords->AppendL( aY1 );
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iPointCoords->AppendL( aX2 );
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iPointCoords->AppendL( aY2 );
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iPointCoords->AppendL( aX3 );
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iPointCoords->AppendL( aY3 );
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}
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// --------------------------------------------------------------------------
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// void CGfxGeneralPath::ShortQuadToL( TFloatFixPt& aX2,
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// ---------------------------------------------------------------------------
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void CGfxGeneralPath::ShortQuadToL( TFloatFixPt& aX2,
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TFloatFixPt& aY2,
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TBool aAbsolute )
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{
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if ( !aAbsolute && iPointCoords->Count() >= 2 )
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{
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// If the last command was 'Z'/'z'
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// the current point is the initial point
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// of the previous segment - 'M'/'m' usually
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if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
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{
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aX2 += iLastX;
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aY2 += iLastY;
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|
|
365 |
}
|
|
|
366 |
else
|
|
|
367 |
{
|
|
|
368 |
aX2 += iPointCoords->operator[]( iPointCoords->Count() - 2 );
|
|
|
369 |
aY2 += iPointCoords->operator[]( iPointCoords->Count() - 1 );
|
|
|
370 |
}
|
|
|
371 |
}
|
|
|
372 |
|
|
|
373 |
TFloatFixPt aX1, aY1;
|
|
|
374 |
GetCurveRefPoint( aX1, aY1 );
|
|
|
375 |
QuadToL( aX1, aY1, aX2, aY2, ETrue );
|
|
|
376 |
}
|
|
|
377 |
|
|
|
378 |
// --------------------------------------------------------------------------
|
|
|
379 |
// void CGfxGeneralPath::ShortCubicToL( TFloatFixPt& aX2,
|
|
|
380 |
// ---------------------------------------------------------------------------
|
|
|
381 |
void CGfxGeneralPath::ShortCubicToL( TFloatFixPt& aX2,
|
|
|
382 |
TFloatFixPt& aY2,
|
|
|
383 |
TFloatFixPt& aX3,
|
|
|
384 |
TFloatFixPt& aY3,
|
|
|
385 |
TBool aAbsolute )
|
|
|
386 |
{
|
|
|
387 |
if ( !aAbsolute && iPointCoords->Count() >= 2 )
|
|
|
388 |
{
|
|
|
389 |
TFloatFixPt lastX = iPointCoords->operator[]( iPointCoords->Count() - 2 );
|
|
|
390 |
TFloatFixPt lastY = iPointCoords->operator[]( iPointCoords->Count() - 1 );
|
|
|
391 |
// If the last command was 'Z'/'z'
|
|
|
392 |
// the current point is the initial point
|
|
|
393 |
// of the previous segment - 'M'/'m' usually
|
|
|
394 |
if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) == KSegClose )
|
|
|
395 |
{
|
|
|
396 |
lastX = iLastX;
|
|
|
397 |
lastY = iLastY;
|
|
|
398 |
}
|
|
|
399 |
aX2 += lastX;
|
|
|
400 |
aY2 += lastY;
|
|
|
401 |
aX3 += lastX;
|
|
|
402 |
aY3 += lastY;
|
|
|
403 |
}
|
|
|
404 |
TFloatFixPt aX1, aY1;
|
|
|
405 |
GetCurveRefPoint( aX1, aY1 );
|
|
|
406 |
// If there is no previous command or if the previous command
|
|
|
407 |
// was not an C, c, S or s, the first control point shall be coincident
|
|
|
408 |
// with the current point.
|
|
|
409 |
TUint32 KSegCubicto = ( TUint32 ) EGfxSegCubicTo; // const
|
|
|
410 |
if ( iPointTypes->operator[]( iPointTypes->Count() - 1 ) != KSegCubicto )
|
|
|
411 |
{
|
|
|
412 |
aX1 = iLastX;
|
|
|
413 |
aY1 = iLastY;
|
|
|
414 |
}
|
|
|
415 |
|
|
|
416 |
CubicToL( aX1, aY1, aX2, aY2, aX3, aY3, ETrue );
|
|
|
417 |
}
|
|
|
418 |
|
|
|
419 |
// --------------------------------------------------------------------------
|
|
|
420 |
// void CGfxGeneralPath::GetCurveRefPoint( TFloatFixPt& aX, TFloatFixPt& aY )
|
|
|
421 |
// ---------------------------------------------------------------------------
|
|
|
422 |
void CGfxGeneralPath::GetCurveRefPoint( TFloatFixPt& aX, TFloatFixPt& aY )
|
|
|
423 |
{
|
|
|
424 |
if ( iPointCoords->Count() < 4 )
|
|
|
425 |
{
|
|
|
426 |
aX = TFloatFixPt( 0 );
|
|
|
427 |
aY = TFloatFixPt( 0 );
|
|
|
428 |
return;
|
|
|
429 |
}
|
|
|
430 |
TFloatFixPt x0 = iPointCoords->operator[]( iPointCoords->Count() - 4 );
|
|
|
431 |
TFloatFixPt y0 = iPointCoords->operator[]( iPointCoords->Count() - 3 );
|
|
|
432 |
TFloatFixPt x1 = iPointCoords->operator[]( iPointCoords->Count() - 2 );
|
|
|
433 |
TFloatFixPt y1 = iPointCoords->operator[]( iPointCoords->Count() - 1 );
|
|
|
434 |
aX = x1 + x1 - x0;
|
|
|
435 |
aY = y1 + y1 - y0;
|
|
|
436 |
}
|
|
|
437 |
|
|
|
438 |
// --------------------------------------------------------------------------
|
|
|
439 |
// void CGfxGeneralPath::Reset()
|
|
|
440 |
// ---------------------------------------------------------------------------
|
|
|
441 |
void CGfxGeneralPath::Reset()
|
|
|
442 |
{
|
|
|
443 |
iPointTypes->Reset();
|
|
|
444 |
iPointCoords->Reset();
|
|
|
445 |
}
|
|
|
446 |
|
|
|
447 |
// --------------------------------------------------------------------------
|
|
|
448 |
// void CGfxGeneralPath::AppendL( CGfxPathIterator* aItr )
|
|
|
449 |
// ---------------------------------------------------------------------------
|
|
|
450 |
void CGfxGeneralPath::AppendL( CGfxPathIterator* aItr )
|
|
|
451 |
{
|
|
|
452 |
TFloatFixPt tmpcoords[6];
|
|
|
453 |
|
|
|
454 |
// Set path data...
|
|
|
455 |
while ( !aItr->IsDone() )
|
|
|
456 |
{
|
|
|
457 |
switch ( aItr->CurrentSegment( tmpcoords ) )
|
|
|
458 |
{
|
|
|
459 |
case EGfxSegMoveTo:
|
|
|
460 |
MoveToL( tmpcoords[0], tmpcoords[1], ETrue );
|
|
|
461 |
break;
|
|
|
462 |
case EGfxSegLineTo:
|
|
|
463 |
LineToL( tmpcoords[0], tmpcoords[1], ETrue );
|
|
|
464 |
break;
|
|
|
465 |
case EGfxSegQuadTo:
|
|
|
466 |
QuadToL( tmpcoords[0],
|
|
|
467 |
tmpcoords[1],
|
|
|
468 |
tmpcoords[2],
|
|
|
469 |
tmpcoords[3],
|
|
|
470 |
ETrue );
|
|
|
471 |
break;
|
|
|
472 |
case EGfxSegCubicTo:
|
|
|
473 |
CubicToL( tmpcoords[0],
|
|
|
474 |
tmpcoords[1],
|
|
|
475 |
tmpcoords[2],
|
|
|
476 |
tmpcoords[3],
|
|
|
477 |
tmpcoords[4],
|
|
|
478 |
tmpcoords[5],
|
|
|
479 |
ETrue );
|
|
|
480 |
break;
|
|
|
481 |
case EGfxSegClose:
|
|
|
482 |
ClosePathL();
|
|
|
483 |
}
|
|
|
484 |
aItr->NextL();
|
|
|
485 |
}
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
// --------------------------------------------------------------------------
|
|
|
489 |
// void CGfxGeneralPath::GetBounds( const TGfxAffineTransform& aAt,
|
|
|
490 |
// ---------------------------------------------------------------------------
|
|
|
491 |
void CGfxGeneralPath::GetBounds( const TGfxAffineTransform& aAt,
|
|
|
492 |
TGfxRectangle2D& aRect )
|
|
|
493 |
{
|
|
|
494 |
TFloatFixPt xMin(KMAXFLOATFIX), yMin(KMAXFLOATFIX), xMax(KMINFLOATFIX), yMax(KMINFLOATFIX);
|
|
|
495 |
for (TInt i=0; i<iPointCoords->Count(); i+=2)
|
|
|
496 |
{
|
|
|
497 |
TGfxPoint2D p((*iPointCoords)[i], (*iPointCoords)[i+1]);
|
|
|
498 |
aAt.Transform(&p, &p, 1);
|
|
|
499 |
if (p.iX < xMin) xMin = p.iX;
|
|
|
500 |
if (p.iX > xMax) xMax = p.iX;
|
|
|
501 |
if (p.iY < yMin) yMin = p.iY;
|
|
|
502 |
if (p.iY > yMax) yMax = p.iY;
|
|
|
503 |
}
|
|
|
504 |
aRect.iX = xMin;
|
|
|
505 |
aRect.iY = yMin;
|
|
|
506 |
aRect.iWidth = xMax - xMin;
|
|
|
507 |
aRect.iHeight = yMax - yMin;
|
|
|
508 |
}
|
|
|
509 |
|
|
|
510 |
// --------------------------------------------------------------------------
|
|
|
511 |
// void CGfxGeneralPath::GetPathIteratorL( TGfxAffineTransform* aAt,
|
|
|
512 |
// ---------------------------------------------------------------------------
|
|
|
513 |
void CGfxGeneralPath::GetPathIteratorL( TGfxAffineTransform* aAt,
|
|
|
514 |
CGfxPathIterator*& aPitr )
|
|
|
515 |
{
|
|
|
516 |
aPitr = new ( ELeave ) CGfxGeneralPathIteratorP( this, aAt );
|
|
|
517 |
}
|
|
|
518 |
|
|
|
519 |
// --------------------------------------------------------------------------
|
|
|
520 |
// void CGfxGeneralPath::GetPathIteratorL( TGfxAffineTransform* aAt,
|
|
|
521 |
// ---------------------------------------------------------------------------
|
|
|
522 |
void CGfxGeneralPath::GetPathIteratorL( TGfxAffineTransform* aAt,
|
|
|
523 |
TInt aLimit,
|
|
|
524 |
CGfxPathIterator*& aPitr )
|
|
|
525 |
{
|
|
|
526 |
aPitr = CGfxFlatteningPathIterator::NewL( this, aAt, aLimit );
|
|
|
527 |
|
|
|
528 |
}
|
|
|
529 |
|
|
|
530 |
// --------------------------------------------------------------------------
|
|
|
531 |
// void CGfxGeneralPath::SetPointTypeArrayL( RArray<TUint32>* aTypesArray )
|
|
|
532 |
// ---------------------------------------------------------------------------
|
|
|
533 |
void CGfxGeneralPath::SetPointTypeArrayL( RArray<TUint32>* aTypesArray )
|
|
|
534 |
{
|
|
|
535 |
TInt count = aTypesArray->Count();
|
|
|
536 |
iPointTypes->Reset();
|
|
|
537 |
|
|
|
538 |
for ( TInt i = 0; i < count; i++ )
|
|
|
539 |
{
|
|
|
540 |
iPointTypes->AppendL( (*aTypesArray)[i] );
|
|
|
541 |
}
|
|
|
542 |
}
|
|
|
543 |
|
|
|
544 |
|
|
|
545 |
// --------------------------------------------------------------------------
|
|
|
546 |
// void CGfxGeneralPath::SetPointTypeArrayRef( RArray<TUint32>*& aTypesArray )
|
|
|
547 |
// ---------------------------------------------------------------------------
|
|
|
548 |
void CGfxGeneralPath::SetPointTypeArrayRef( RArray<TUint32>*& aTypesArray )
|
|
|
549 |
{
|
|
|
550 |
if (iPointTypes)
|
|
|
551 |
{
|
|
|
552 |
iPointTypes->Reset();
|
|
|
553 |
delete iPointTypes;
|
|
|
554 |
iPointTypes= NULL;
|
|
|
555 |
}
|
|
|
556 |
iPointTypes= aTypesArray;
|
|
|
557 |
}
|
|
|
558 |
|
|
|
559 |
|
|
|
560 |
// --------------------------------------------------------------------------
|
|
|
561 |
// void CGfxGeneralPath::SetPointCoordsArrayRef( RArray<TFloatFixPt>*& aPointCoords )
|
|
|
562 |
// ---------------------------------------------------------------------------
|
|
|
563 |
void CGfxGeneralPath::SetPointCoordsArrayRef( RArray<TFloatFixPt>*& aPointCoords )
|
|
|
564 |
{
|
|
|
565 |
TInt count = aPointCoords->Count();
|
|
|
566 |
if (iPointCoords)
|
|
|
567 |
{
|
|
|
568 |
iPointCoords->Reset();
|
|
|
569 |
delete iPointCoords;
|
|
|
570 |
iPointCoords= NULL;
|
|
|
571 |
}
|
|
|
572 |
iPointCoords= aPointCoords;
|
|
|
573 |
}
|
|
|
574 |
|
|
|
575 |
|
|
|
576 |
// --------------------------------------------------------------------------
|
|
|
577 |
// void CGfxGeneralPath::SetPointCoordsArrayL( RArray<TFloatFixPt>* aPointCoords )
|
|
|
578 |
// ---------------------------------------------------------------------------
|
|
|
579 |
void CGfxGeneralPath::SetPointCoordsArrayL( RArray<TFloatFixPt>* aPointCoords )
|
|
|
580 |
{
|
|
|
581 |
TInt count = aPointCoords->Count();
|
|
|
582 |
iPointCoords->Reset();
|
|
|
583 |
|
|
|
584 |
for ( TInt i = 0; (i+1) < count; i+=2 )
|
|
|
585 |
{
|
|
|
586 |
iPointCoords->AppendL( (*aPointCoords)[i] );
|
|
|
587 |
iPointCoords->AppendL( (*aPointCoords)[i+1] );
|
|
|
588 |
}
|
|
|
589 |
}
|
|
|
590 |
|
|
|
591 |
// --------------------------------------------------------------------------
|
|
|
592 |
// RArray<TUint32>* CGfxGeneralPath::PointTypeArray()
|
|
|
593 |
// ---------------------------------------------------------------------------
|
|
|
594 |
RArray<TUint32>* CGfxGeneralPath::PointTypeArray()
|
|
|
595 |
{
|
|
|
596 |
return iPointTypes;
|
|
|
597 |
}
|
|
|
598 |
|
|
|
599 |
unsigned char* CGfxGeneralPath::PathSegmentTypeArray()
|
|
|
600 |
{
|
|
|
601 |
return iPathSegmentTypeArray;
|
|
|
602 |
}
|
|
|
603 |
|
|
|
604 |
void CGfxGeneralPath::PathSegmentTypeArray(unsigned char* aSegmentTypeArray)
|
|
|
605 |
{
|
|
|
606 |
iPathSegmentTypeArray = aSegmentTypeArray;
|
|
|
607 |
}
|
|
|
608 |
// --------------------------------------------------------------------------
|
|
|
609 |
// TFloatFixPt* CGfxGeneralPath::PointCoordsArray()
|
|
|
610 |
// ---------------------------------------------------------------------------
|
|
|
611 |
TFloatFixPt* CGfxGeneralPath::PointCoordsArray()
|
|
|
612 |
{
|
|
|
613 |
if((iPointCoords) && (iPointCoords->Count() > 0))
|
|
|
614 |
return &( iPointCoords->operator[]( 0 ) );
|
|
|
615 |
else
|
|
|
616 |
return NULL;
|
|
|
617 |
}
|
|
|
618 |
|
|
|
619 |
// --------------------------------------------------------------------------
|
|
|
620 |
// RArray<TFloatFixPt>* CGfxGeneralPath::PointCoordsArrayAll()
|
|
|
621 |
// ---------------------------------------------------------------------------
|
|
|
622 |
RArray<TFloatFixPt>* CGfxGeneralPath::PointCoordsArrayAll()
|
|
|
623 |
{
|
|
|
624 |
return iPointCoords;
|
|
|
625 |
}
|
|
|
626 |
// --------------------------------------------------------------------------
|
|
|
627 |
// TInt CGfxGeneralPath::GetSegmentCount()
|
|
|
628 |
// ---------------------------------------------------------------------------
|
|
|
629 |
TInt CGfxGeneralPath::GetSegmentCount()
|
|
|
630 |
{
|
|
|
631 |
return iPointTypes->Count();
|
|
|
632 |
}
|
|
|
633 |
// --------------------------------------------------------------------------
|
|
|
634 |
// TInt CGfxGeneralPath::GetSegmentType(TInt aSegmentIndex)
|
|
|
635 |
// ---------------------------------------------------------------------------
|
|
|
636 |
TInt CGfxGeneralPath::GetSegmentType(TInt aSegmentIndex)
|
|
|
637 |
{
|
|
|
638 |
if(aSegmentIndex > 0 && aSegmentIndex <= iPointTypes->Count())
|
|
|
639 |
{
|
|
|
640 |
TInt SegmentType = iPointTypes->operator[]( aSegmentIndex - 1 );
|
|
|
641 |
TInt KSegLineto = ( TInt ) EGfxSegLineTo;
|
|
|
642 |
if( SegmentType == KSegLineto)
|
|
|
643 |
{
|
|
|
644 |
// differentiate between vertical and horizontal lines.
|
|
|
645 |
TBool isVertical = EFalse;
|
|
|
646 |
TBool isHorizontal = EFalse;
|
|
|
647 |
// the following function will tel us that this line segment is horizontal
|
|
|
648 |
// or vertical.
|
|
|
649 |
IsHorizontalLineOrVertical(aSegmentIndex-1, isHorizontal, isVertical);
|
|
|
650 |
if( !isHorizontal )
|
|
|
651 |
{
|
|
|
652 |
if(isVertical)
|
|
|
653 |
{
|
|
|
654 |
TUint32 KVertical = 6;
|
|
|
655 |
return KVertical ;
|
|
|
656 |
}
|
|
|
657 |
}
|
|
|
658 |
else
|
|
|
659 |
{
|
|
|
660 |
TUint32 KHorizontal = 5;
|
|
|
661 |
return KHorizontal ;
|
|
|
662 |
}
|
|
|
663 |
return SegmentType;
|
|
|
664 |
}
|
|
|
665 |
return SegmentType;
|
|
|
666 |
}
|
|
|
667 |
else
|
|
|
668 |
{
|
|
|
669 |
return KErrBadHandle;
|
|
|
670 |
}
|
|
|
671 |
}
|
|
|
672 |
// --------------------------------------------------------------------------
|
|
|
673 |
// TReal32 CGfxGeneralPath::GetSegmentParameter(TInt aSegmentIndex , TInt aParameterIndex)
|
|
|
674 |
// ---------------------------------------------------------------------------
|
|
|
675 |
TReal32 CGfxGeneralPath::GetSegmentParameter(TInt aSegmentIndex , TInt aParameterIndex)
|
|
|
676 |
{
|
|
|
677 |
if( aSegmentIndex <= 0 && aSegmentIndex >= iPointTypes->Count())
|
|
|
678 |
{
|
|
|
679 |
return 0.0;
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
TInt count =0;
|
|
|
683 |
TInt Param = 0;
|
|
|
684 |
|
|
|
685 |
while(count < (aSegmentIndex -1))
|
|
|
686 |
{
|
|
|
687 |
|
|
|
688 |
switch(iPointTypes->operator[]( count))
|
|
|
689 |
{
|
|
|
690 |
|
|
|
691 |
case EGfxSegClose:
|
|
|
692 |
break;
|
|
|
693 |
case EGfxSegLineTo:
|
|
|
694 |
Param+=2;
|
|
|
695 |
break;
|
|
|
696 |
case EGfxSegQuadTo:
|
|
|
697 |
Param+= 4;
|
|
|
698 |
break;
|
|
|
699 |
case EGfxSegCubicTo:
|
|
|
700 |
Param +=6;
|
|
|
701 |
break;
|
|
|
702 |
case EGfxSegMoveTo:
|
|
|
703 |
Param+= 2;
|
|
|
704 |
break;
|
|
|
705 |
default:
|
|
|
706 |
break;
|
|
|
707 |
}
|
|
|
708 |
count++;
|
|
|
709 |
}
|
|
|
710 |
|
|
|
711 |
Param--;
|
|
|
712 |
|
|
|
713 |
if((Param + aParameterIndex) >= iPointCoords->Count())
|
|
|
714 |
{
|
|
|
715 |
return 0;
|
|
|
716 |
}
|
|
|
717 |
|
|
|
718 |
return (TReal32)iPointCoords->operator[](Param + aParameterIndex);
|
|
|
719 |
}
|
|
|
720 |
// --------------------------------------------------------------------------
|
|
|
721 |
// void CGfxGeneralPath::IsHorizontalLineOrVertical(TInt aSegmentIndex, TBool& aHorizontal, TBool& aVertical)
|
|
|
722 |
// ---------------------------------------------------------------------------
|
|
|
723 |
void CGfxGeneralPath::IsHorizontalLineOrVertical(TInt aSegmentIndex, TBool& aHorizontal, TBool& aVertical)
|
|
|
724 |
{
|
|
|
725 |
// see the previous segment.
|
|
|
726 |
if( aSegmentIndex <= 0 && aSegmentIndex >= iPointTypes->Count())
|
|
|
727 |
{
|
|
|
728 |
return;
|
|
|
729 |
}
|
|
|
730 |
TInt count =0;
|
|
|
731 |
TInt Param =0;
|
|
|
732 |
TInt LastPram = 0;
|
|
|
733 |
while(count <= aSegmentIndex )
|
|
|
734 |
{
|
|
|
735 |
// this will contain the Index to the last Segment.
|
|
|
736 |
LastPram= Param;
|
|
|
737 |
|
|
|
738 |
// search for the current segment.
|
|
|
739 |
switch(iPointTypes->operator[]( count))
|
|
|
740 |
{
|
|
|
741 |
// here increment the Param based on the number of attribute each command needs.
|
|
|
742 |
case EGfxSegClose:
|
|
|
743 |
break;
|
|
|
744 |
case EGfxSegLineTo:
|
|
|
745 |
Param+=2;
|
|
|
746 |
break;
|
|
|
747 |
case EGfxSegQuadTo:
|
|
|
748 |
Param+= 4;
|
|
|
749 |
break;
|
|
|
750 |
case EGfxSegCubicTo:
|
|
|
751 |
Param +=6;
|
|
|
752 |
break;
|
|
|
753 |
case EGfxSegMoveTo:
|
|
|
754 |
Param+= 2;
|
|
|
755 |
break;
|
|
|
756 |
default:
|
|
|
757 |
break;
|
|
|
758 |
}
|
|
|
759 |
count++;
|
|
|
760 |
}
|
|
|
761 |
|
|
|
762 |
|
|
|
763 |
Param--;
|
|
|
764 |
LastPram--;
|
|
|
765 |
|
|
|
766 |
if ( ( (Param-1) >= 0) && ( (LastPram - 1) >= 0) )
|
|
|
767 |
{
|
|
|
768 |
|
|
|
769 |
if(iPointCoords->operator[](Param-1) == iPointCoords->operator[](LastPram-1))
|
|
|
770 |
{
|
|
|
771 |
aVertical = ETrue;
|
|
|
772 |
return;
|
|
|
773 |
}
|
|
|
774 |
if(iPointCoords->operator[](Param) == iPointCoords->operator[](LastPram))
|
|
|
775 |
{
|
|
|
776 |
aHorizontal = ETrue;
|
|
|
777 |
return;
|
|
|
778 |
}
|
|
|
779 |
}
|
|
|
780 |
else if ( (Param - 1 ) >= 0 )
|
|
|
781 |
{
|
|
|
782 |
//this is the case where there is just a LineTo and nothing else
|
|
|
783 |
if ( iPointCoords->operator[](Param - 1) >= TFloatFixPt(0) )
|
|
|
784 |
{
|
|
|
785 |
aHorizontal = ETrue;
|
|
|
786 |
return;
|
|
|
787 |
}
|
|
|
788 |
else if ( iPointCoords->operator[](Param) >= TFloatFixPt(0) )
|
|
|
789 |
{
|
|
|
790 |
aVertical = ETrue;
|
|
|
791 |
return;
|
|
|
792 |
}
|
|
|
793 |
}
|
|
|
794 |
}
|
|
|
795 |
|
|
|
796 |
TUint8 CGfxGeneralPath::Count()
|
|
|
797 |
{
|
|
|
798 |
return iCount;
|
|
|
799 |
}
|
|
|
800 |
|
|
|
801 |
void CGfxGeneralPath::Count(TUint8 aCount)
|
|
|
802 |
{
|
|
|
803 |
iCount = aCount;
|
|
|
804 |
}
|
|
|
805 |
// --------------------------------------------------------------------------
|
|
|
806 |
// CGfxGeneralPath* CGfxGeneralPath::CloneL()
|
|
|
807 |
// ---------------------------------------------------------------------------
|
|
|
808 |
CGfxGeneralPath* CGfxGeneralPath::CloneL()
|
|
|
809 |
{
|
|
|
810 |
CGfxGeneralPath* path = CGfxGeneralPath::NewLC();
|
|
|
811 |
TInt index = 0;
|
|
|
812 |
|
|
|
813 |
for( index = 0; index < iPointTypes->Count(); index++ )
|
|
|
814 |
{
|
|
|
815 |
path->iPointTypes->AppendL( iPointTypes->operator[]( index ) );
|
|
|
816 |
}
|
|
|
817 |
for( index = 0; index < iPointCoords->Count(); index++ )
|
|
|
818 |
{
|
|
|
819 |
path->iPointCoords->AppendL( iPointCoords->operator[]( index ) );
|
|
|
820 |
}
|
|
|
821 |
path->iLastX = iLastX;
|
|
|
822 |
path->iLastY = iLastY;
|
|
|
823 |
if(TUint8 count = path->Count())
|
|
|
824 |
{
|
|
|
825 |
path->iPathSegmentTypeArray = new unsigned char[count];
|
|
|
826 |
for(int i =0; i<count ; i++)
|
|
|
827 |
path->iPathSegmentTypeArray[i] = iPathSegmentTypeArray[i];
|
|
|
828 |
}
|
|
|
829 |
else
|
|
|
830 |
{
|
|
|
831 |
path->iPathSegmentTypeArray = NULL;
|
|
|
832 |
}
|
|
|
833 |
CleanupStack::Pop();
|
|
|
834 |
return path;
|
|
|
835 |
}
|
|
|
836 |
|
|
|
837 |
// --------------------------------------------------------------------------
|
|
|
838 |
// void CGfxGeneralPath::QuadToLWithNoControlPoint()
|
|
|
839 |
// If there is no previous command or if the previous command was not a
|
|
|
840 |
// Q, q, T or t, the control point shall be current point.
|
|
|
841 |
// ---------------------------------------------------------------------------
|
|
|
842 |
void CGfxGeneralPath::QuadToLWithNoControlPoint(TFloatFixPt aX, TFloatFixPt aY)
|
|
|
843 |
{
|
|
|
844 |
TUint32 KSegQuadto = ( TUint32 ) EGfxSegQuadTo;
|
|
|
845 |
iPointTypes->AppendL( KSegQuadto );
|
|
|
846 |
iPointCoords->AppendL( iLastX );
|
|
|
847 |
iPointCoords->AppendL( iLastY );
|
|
|
848 |
iPointCoords->AppendL( aX );
|
|
|
849 |
iPointCoords->AppendL( aY );
|
|
|
850 |
}
|