1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "graphicscontextstate.h"

    17 #include "cliwin.h"

    18 

    19 /*------------------------------------------------------------------------------

    20   Description: Resets internal status of the graphics context to pre-defined values.

    21  -----------------------------------------------------------------------------*/

    22 void TInternalGcStatus::ResetInternalStatus(CWsClientWindow* aWin)

    23 	{

    24 	iDrawMode = CGraphicsContext::EDrawModePEN;

    25 	iPenColor = KRgbBlack;

    26 	iBrushColor = aWin ? aWin->BackColor() : KRgbWhite;

    27 	iPenStyle = CGraphicsContext::ESolidPen;

    28 	iBrushStyle = CGraphicsContext::ENullBrush;

    29 	iPenSize = TSize(1,1);

    30 	iFontHandle = NULL;

    31 	iUnderline = EUnderlineOff;

    32 	iStrikethrough = EStrikethroughOff;

    33 	iBrushPatternHandle = NULL;

    34 	iBrushOrigin = TPoint(0,0);

    35 	iCharExcessWidth = 0;

    36 	iCharNumChars = 0;

    37 	iWordExcessWidth = 0;

    38 	iWordNumChars = 0;

    39 	iOrigin = TPoint(0,0);

    40 	iShadowColor = KRgbGray; 

    41 	}

    42 

    43 /*------------------------------------------------------------------------------

    44   Description: Helper function to retrieve current data from the given buffer and 

    45   set graphics context.

    46  -----------------------------------------------------------------------------*/

    47 void TInternalGcStatus::InternalizeGcAttributesL(MWsGraphicsContext* aGc, RReadStream& aReadStream)

    48 	{

    49 	aGc->SetDrawMode((MWsGraphicsContext::TDrawMode)(aReadStream.ReadUint8L()));

    50 	

    51 	MWsGraphicsContext::TBrushStyle brushStyle = (MWsGraphicsContext::TBrushStyle) (aReadStream.ReadUint8L());

    52 	aGc->SetPenStyle((MWsGraphicsContext::TPenStyle) (aReadStream.ReadUint8L()));

    53 

    54 	TRgb penColor;

    55 	penColor.InternalizeL(aReadStream); 

    56 	aGc->SetPenColor(penColor);

    57 

    58 	TRgb brushColor;

    59 	brushColor.InternalizeL(aReadStream);

    60 	aGc->SetBrushColor(brushColor);

    61 	

    62 	TSize size;

    63 	aReadStream >> size;

    64 	aGc->SetPenSize(size);

    65 

    66 	aGc->ResetBrushPattern();

    67 	TInt brushHandle = aReadStream.ReadInt32L();

    68 	if(brushHandle)

    69 		{

    70 		aGc->SetBrushPattern(brushHandle);

    71 		if (!aGc->HasBrushPattern() && brushStyle == MWsGraphicsContext::EPatternedBrush)

    72 			{

    73 			// Panic may occur if trying to set EPatternedBrush when a bitmap has not been

    74 			// successfully set, so revert to null brush.

    75 			brushStyle = MWsGraphicsContext::ENullBrush;

    76 			}

    77 		}

    78 	// Wait until any brush pattern has been set before setting the brush style.

    79 	aGc->SetBrushStyle(brushStyle);

    80 	

    81 	TInt wordExcessWidth = aReadStream.ReadUint32L();

    82 	TInt wordNumChars = aReadStream.ReadUint32L();

    83 	aGc->SetWordJustification(wordExcessWidth, wordNumChars);

    84 

    85 	TInt charExcessWidth = aReadStream.ReadUint32L();

    86 	TInt charNumChars = aReadStream.ReadUint32L();

    87 	aGc->SetCharJustification(charExcessWidth, charNumChars);

    88 	

    89 	TRgb shadowColor;

    90 	shadowColor.InternalizeL(aReadStream);

    91 	aGc->SetTextShadowColor(shadowColor);

    92 	

    93 	TPoint origin;

    94 	aReadStream >> origin;

    95 	aGc->SetOrigin(origin);

    96 

    97 	TPoint brushOrigin;

    98 	aReadStream >> brushOrigin;

    99 	aGc->SetBrushOrigin(brushOrigin);

   100 	

   101 	aGc->SetUnderlineStyle((MWsGraphicsContext::TFontUnderline) (aReadStream.ReadUint8L()));

   102  	aGc->SetStrikethroughStyle((MWsGraphicsContext::TFontStrikethrough) (aReadStream.ReadUint8L()));

   103 	

   104 	aGc->ResetFont();

   105 	TInt fontHandle = aReadStream.ReadInt32L();

   106 	if(fontHandle)

   107 		{

   108 		CFbsBitGcFont font;

   109 		TInt res = font.Duplicate(fontHandle);

   110 		if(res == KErrNone)

   111 			{

   112 			aGc->SetFont(&font);

   113 			font.Reset();

   114 			}

   115 		}

   116 	}

   117 

   118 /*------------------------------------------------------------------------------

   119   Description: Helper function to save graphics context information into a given buffer.

   120  -----------------------------------------------------------------------------*/

   121 void TInternalGcStatus::ExternalizeGcAttributesL(RWriteStream& aWriteStream)

   122 	{

   123 	aWriteStream.WriteUint8L(iDrawMode);

   124 	aWriteStream.WriteUint8L(iBrushStyle);

   125 	aWriteStream.WriteUint8L(iPenStyle);

   126 	iPenColor.ExternalizeL(aWriteStream); 

   127 	iBrushColor.ExternalizeL(aWriteStream);

   128 	aWriteStream << iPenSize;

   129 	aWriteStream.WriteInt32L(iBrushPatternHandle);

   130 	aWriteStream.WriteUint32L(iWordExcessWidth);

   131 	aWriteStream.WriteUint32L(iWordNumChars);

   132 	aWriteStream.WriteUint32L(iCharExcessWidth);

   133 	aWriteStream.WriteUint32L(iCharNumChars);

   134 	iShadowColor.ExternalizeL(aWriteStream);

   135 	aWriteStream << iOrigin;

   136 	aWriteStream << iBrushOrigin;

   137 	aWriteStream.WriteUint8L(iUnderline);

   138 	aWriteStream.WriteUint8L(iStrikethrough);

   139 	aWriteStream.WriteInt32L(iFontHandle);

   140 	}

   141