svgtopt/SVG/SVGImpl/src/SVGPaintCssValueImpl.cpp
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     1 /*
       
     2 * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  SVG Implementation source file
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 #include "SVGPaintCssValueImpl.h"
       
    20 #include "SVGFloatCssValueImpl.h"
       
    21 
       
    22 #include "SVGElementImpl.h"
       
    23 #include "SVGColor.h"
       
    24 #include "GfxPaint.h"
       
    25 
       
    26 #include "SVGDocumentImpl.h"
       
    27 #include "SVGGradientElementImpl.h"
       
    28 #include "SVGSolidColorElementImpl.h"
       
    29 
       
    30 
       
    31 
       
    32 // ---------------------------------------------------------------------------
       
    33 //
       
    34 // ---------------------------------------------------------------------------
       
    35 CPaintCssValueImpl::~CPaintCssValueImpl()
       
    36     {
       
    37 
       
    38     if( iUrlId )
       
    39         {
       
    40         delete iUrlId;
       
    41         iUrlId = NULL ;
       
    42         }
       
    43 
       
    44      if ( iValue && iIsValueOwned )
       
    45 
       
    46         {
       
    47         delete ( TSvgColor * ) iValue;
       
    48         }
       
    49      iValue = NULL;
       
    50     }
       
    51 
       
    52 // ---------------------------------------------------------------------------
       
    53 //
       
    54 // ---------------------------------------------------------------------------
       
    55 MGfxPaint* CPaintCssValueImpl::Value()
       
    56     {
       
    57     CSvgElementImpl* lReferencedElement = NULL;
       
    58     if ( iUrlFlag && iSvgElementImpl )
       
    59         {
       
    60         	// iUrlFlag is true means this paint is gradient.
       
    61         	CSvgDocumentImpl *lDoc = (CSvgDocumentImpl *)iSvgElementImpl->OwnerDocument();
       
    62 
       
    63         	if (lDoc)
       
    64         	{
       
    65         		if(iUrlId)
       
    66         		{
       
    67 		        	lReferencedElement = ( CSvgElementImpl*)lDoc->GetElementById( *iUrlId );
       
    68 		        	if(lReferencedElement)
       
    69 		        		TInt elementId = lReferencedElement->ElemID();
       
    70 		        	if ( lReferencedElement && ((lReferencedElement->ElemID() == KSvgLinearGradientElement) ||
       
    71 		              (lReferencedElement->ElemID() == KSvgRadialGradientElement)) )
       
    72 		        	{
       
    73 		         		//Get Attributes from Gradient Element
       
    74 		        		iValue =  ((CSvgGradientElementImpl *)lReferencedElement)->PaintAttribute();
       
    75                         iIsValueOwned = EFalse;
       
    76 		        	}
       
    77 		        	else if (lReferencedElement && lReferencedElement->ElemID() == KSvgSolidColorElement )
       
    78 		        	{
       
    79 		        		// Get Attributes from solidColor element
       
    80 		        		GetColorFromSolidColorElement(lReferencedElement);
       
    81 		        		// delete the reference because we now have a clone.
       
    82 	   					TRAPD(err, SetValueL(iValue->GetColor()));
       
    83 		        		delete iUrlId;
       
    84 		        		iUrlId = NULL;
       
    85 	   					if (err)
       
    86     	   					{
       
    87                             #ifdef _DEBUG
       
    88                             RDebug::Printf("CPaintCssValueImpl::Value() error trapped=%d", err);
       
    89                             #endif
       
    90     	   					}
       
    91 		        		iUrlFlag = EFalse;
       
    92   		        	}
       
    93   		        	else  // id = color value... for some reason like <rect id="red" fill="red"
       
    94   		        		{
       
    95 						TRAPD(err, SetValueL(iUrlId->Des()));
       
    96 	   					if (err)
       
    97     	   					{
       
    98                             #ifdef _DEBUG
       
    99                             RDebug::Printf("CPaintCssValueImpl::Value() error trapped=%d", err);
       
   100                             #endif
       
   101     	   					}
       
   102   		        		}
       
   103         		}
       
   104         	}
       
   105         }
       
   106 
       
   107     return iValue;
       
   108     }
       
   109 
       
   110 // ---------------------------------------------------------------------------
       
   111 //
       
   112 // ---------------------------------------------------------------------------
       
   113 TInt CPaintCssValueImpl::SetValueL( const TDesC& aValue )
       
   114     {
       
   115     if ( iValue )
       
   116         {
       
   117         delete ( TSvgColor * ) iValue;
       
   118         iValue = NULL;
       
   119         iIsValueOwned = EFalse;
       
   120         }
       
   121 
       
   122     _LIT( KNone, "none" );
       
   123 
       
   124     _LIT( KCurrentColor, "currentColor" );
       
   125     _LIT(KUrl,"url");
       
   126 
       
   127 
       
   128     TUint32 tempVal = 0x000000;//default is 'black'
       
   129     if ( aValue == KNone )
       
   130         {
       
   131         tempVal = KGfxColorNull;
       
   132         }
       
   133     else if ( aValue == KCurrentColor )
       
   134         {
       
   135         tempVal = KSvgCurrentColor;
       
   136         }
       
   137     else if (aValue.Left(3) == KUrl)
       
   138         {
       
   139         // URL = gradient at the moment...
       
   140         iUrlFlag=ETrue;
       
   141 
       
   142         HBufC* lReferenceId = (aValue.Right(aValue.Length()-5)).AllocL();
       
   143 
       
   144 
       
   145         if( iUrlId )
       
   146             {
       
   147             delete iUrlId;
       
   148             iUrlId = NULL;
       
   149             }
       
   150 
       
   151         iUrlId = (lReferenceId->Left(lReferenceId->Length()-1)).AllocL();
       
   152 
       
   153         delete lReferenceId;
       
   154         lReferenceId = NULL;
       
   155 
       
   156         // Return it from here otherwise a memory Leak will occur
       
   157         return KErrNone;
       
   158 
       
   159         }
       
   160     else
       
   161         {
       
   162 
       
   163 
       
   164         TSvgColor tColor(KGfxColorNull);
       
   165         if( tColor.GetStringL( aValue,tempVal) != EFalse )
       
   166             {
       
   167             }
       
   168         else
       
   169             {
       
   170             tempVal = 0;
       
   171             iDefaultSet = ETrue;
       
   172             }
       
   173         }
       
   174     iValue = new ( ELeave ) TSvgColor( tempVal );
       
   175     iIsValueOwned = ETrue;
       
   176     return KErrNone;
       
   177     }
       
   178 
       
   179 // ---------------------------------------------------------------------------
       
   180 //
       
   181 // ---------------------------------------------------------------------------
       
   182 TInt CPaintCssValueImpl::SetValueL( const TInt& aValue )
       
   183     {
       
   184      if ( iValue && !iUrlFlag)
       
   185         {
       
   186         delete ( TSvgColor * ) iValue;
       
   187         iValue = NULL;
       
   188         }
       
   189 		iUrlFlag = EFalse;
       
   190     iValue = new ( ELeave ) TSvgColor( aValue );
       
   191     iIsValueOwned = ETrue;
       
   192     return KErrNone;
       
   193     }
       
   194 // ---------------------------------------------------------------------------
       
   195 // This method gets the color value from the referenced solidColor element
       
   196 // ---------------------------------------------------------------------------
       
   197 void CPaintCssValueImpl::GetColorFromSolidColorElement(CSvgElementImpl* aReferencedElement)
       
   198     {
       
   199     CCssValue*  lCssValue = NULL;
       
   200     aReferencedElement->FindProperty( KCSS_ATTR_FILL, lCssValue, aReferencedElement );
       
   201     if (lCssValue != NULL)
       
   202        {
       
   203        iValue = ((CPaintCssValueImpl*)lCssValue)->Value();
       
   204        ((CSvgSolidColorElementImpl*)aReferencedElement)->ApplyOpacitytoElement( iSvgElementImpl );
       
   205        }
       
   206     }
       
   207 
       
   208 /*// ---------------------------------------------------------------------------
       
   209 //
       
   210 // ---------------------------------------------------------------------------
       
   211 void CPaintCssValueImpl::SetL( CPaintCssValueImpl* aValue )
       
   212 {
       
   213 	iSvgElementImpl = aValue->iSvgElementImpl;
       
   214 	iValueType = aValue->iValueType;
       
   215 
       
   216 	if (aValue->iValue && !aValue->iUrlFlag)
       
   217 	{
       
   218 		CloneRGBValueL( ((TSvgColor*)(aValue->iValue))->Value());
       
   219 	}
       
   220 	else if (aValue->iValue)
       
   221 	{
       
   222 		iValue = aValue->iValue;
       
   223 	}
       
   224 
       
   225 	iDefaultSet = aValue->iDefaultSet;
       
   226 	iUrlFlag = aValue->iUrlFlag;
       
   227 
       
   228     if( aValue->iUrlFlag )
       
   229         {
       
   230         SetUrlIdL(aValue->iUrlId->Des());
       
   231         }
       
   232 }
       
   233 */
       
   234 
       
   235 // *******************************************************
       
   236 // Private
       
   237 
       
   238 
       
   239 // ---------------------------------------------------------------------------
       
   240 //
       
   241 // ---------------------------------------------------------------------------
       
   242 CPaintCssValueImpl::CPaintCssValueImpl() :iUrlId(NULL), iValue( NULL ),
       
   243                                           iUrlFlag(EFalse), 
       
   244                                           iDefaultSet (EFalse), 
       
   245                                           iIsValueOwned( EFalse )
       
   246     {
       
   247     }
       
   248 
       
   249 
       
   250 
       
   251 // ---------------------------------------------------------------------------
       
   252 //
       
   253 // ---------------------------------------------------------------------------
       
   254 void  CPaintCssValueImpl::SetUrlflag()
       
   255     {
       
   256     iUrlFlag= ETrue;
       
   257     }
       
   258 
       
   259 // ---------------------------------------------------------------------------
       
   260 //
       
   261 // ---------------------------------------------------------------------------
       
   262 TBool CPaintCssValueImpl::GetUrlflag()
       
   263 {
       
   264     return iUrlFlag;
       
   265 }
       
   266 
       
   267 // ---------------------------------------------------------------------------
       
   268 //
       
   269 // ---------------------------------------------------------------------------
       
   270 void  CPaintCssValueImpl::SetUrlIdL(const TDesC& aValue)
       
   271     {
       
   272     if( iUrlId )
       
   273         {
       
   274         delete iUrlId;
       
   275         iUrlId = NULL;
       
   276         }
       
   277     iUrlId  = aValue.AllocL();
       
   278     }
       
   279 
       
   280 
       
   281 // ---------------------------------------------------------------------------
       
   282 //
       
   283 // ---------------------------------------------------------------------------
       
   284 TInt CPaintCssValueImpl::CloneRGBValueL(const TInt& aValue)
       
   285     {
       
   286     if (!iUrlFlag)
       
   287         {
       
   288         if(iValue)
       
   289         	{
       
   290         	delete ( TSvgColor * ) iValue;
       
   291         	}
       
   292    		iValue = new ( ELeave ) TSvgColor( (TUint32)aValue );
       
   293    		iIsValueOwned = ETrue;
       
   294         }
       
   295 
       
   296     return KErrNone;
       
   297     }
       
   298 
       
   299 // ---------------------------------------------------------------------------
       
   300 //
       
   301 // ---------------------------------------------------------------------------
       
   302 HBufC*  CPaintCssValueImpl::GetUrlId()
       
   303     {
       
   304     return iUrlId;
       
   305     }
       
   306 
       
   307 // ---------------------------------------------------------------------------
       
   308 //
       
   309 // ---------------------------------------------------------------------------
       
   310 TBool CPaintCssValueImpl::IsEqual( CCssValue* aValue )
       
   311 {
       
   312     if (((CPaintCssValueImpl*)aValue)->iValue == iValue)
       
   313     {
       
   314         return ETrue;
       
   315     }
       
   316 
       
   317     return EFalse;
       
   318 }
       
   319 
       
   320 
       
   321 // ---------------------------------------------------------------------------
       
   322 // IsDefaultSet check if default color is set
       
   323 // ---------------------------------------------------------------------------
       
   324 TBool CPaintCssValueImpl::IsDefaultSet()
       
   325 	{
       
   326 	return iDefaultSet;
       
   327 	}
       
   328 
       
   329 
       
   330 // ---------------------------------------------------------------------------
       
   331 //
       
   332 // ---------------------------------------------------------------------------
       
   333 void CPaintCssValueImpl::SetElement(CSvgElementImpl* aElement)
       
   334 {
       
   335 	iSvgElementImpl = aElement;
       
   336 }
       
   337 
       
   338 // ---------------------------------------------------------------------------
       
   339 //
       
   340 // ---------------------------------------------------------------------------
       
   341 CSvgElementImpl* CPaintCssValueImpl::GetElement()
       
   342 {
       
   343 	return iSvgElementImpl;
       
   344 }
       
   345 
       
   346 // ---------------------------------------------------------------------------
       
   347 //
       
   348 // ---------------------------------------------------------------------------
       
   349 void CPaintCssValueImpl::Print()
       
   350 {
       
   351 #ifdef _DEBUG
       
   352 	if (iValue)
       
   353 	{
       
   354 		RDebug::Printf("%d", (( TSvgColor* )iValue)->GetColor() );
       
   355 	}
       
   356 #endif
       
   357 }