uiacceltk/hitchcock/Client/src/alfimagebrush.cpp
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     1 /*
       
     2 * Copyright (c) 2006 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:   Image brush
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #include "alf/alfimagebrush.h"
       
    21 #include "alf/alfimage.h"
       
    22 #include "alf/alftexture.h"
       
    23 #include "alf/alfenv.h"
       
    24 #include "alf/alfgencomponent.h"
       
    25 #include "alflogger.h"
       
    26 #include "alfskinnableimage.h"
       
    27 #include "alf/alfconstants.h"
       
    28 
       
    29 #include <uiacceltk/HuiUtil.h>
       
    30 
       
    31 // Private data structure
       
    32 struct CAlfImageBrush::TImageBrushPrivateData
       
    33     {
       
    34     CAlfSkinnableImage* iImage;   // owned
       
    35     TInt iLeftBorderWidth;
       
    36     TInt iRightBorderWidth;
       
    37     TInt iTopBorderWidth;
       
    38     TInt iBottomBorderWidth;     
       
    39     TAlfTimedPoint iOffset;
       
    40     TAlfTimedValue iScale;
       
    41     };
       
    42 
       
    43 
       
    44 // ======== MEMBER FUNCTIONS ========
       
    45 
       
    46 // ---------------------------------------------------------------------------
       
    47 // Constructor
       
    48 // ---------------------------------------------------------------------------
       
    49 //
       
    50 CAlfImageBrush::CAlfImageBrush()
       
    51     : CAlfBrush()
       
    52     {
       
    53     }
       
    54 
       
    55 
       
    56 // ---------------------------------------------------------------------------
       
    57 // ConstructL
       
    58 // ---------------------------------------------------------------------------
       
    59 //
       
    60 void CAlfImageBrush::ConstructL(CAlfEnv& aEnv, const TAlfImage & aImage)
       
    61     {
       
    62     iImageBrushData = new (ELeave) TImageBrushPrivateData;
       
    63     iImageBrushData->iImage = NULL;
       
    64     iImageBrushData->iImage = new (ELeave) CAlfSkinnableImage(&aEnv);
       
    65     iImageBrushData->iImage->SetImage(aImage); // This texturizes skin graphics if needed
       
    66     iImageBrushData->iLeftBorderWidth = 0;
       
    67     iImageBrushData->iRightBorderWidth = 0;
       
    68     iImageBrushData->iTopBorderWidth = 0;
       
    69     iImageBrushData->iBottomBorderWidth = 0;    
       
    70     
       
    71     TAlfImageBrushParams params;
       
    72     params.iTextureHandle = iImageBrushData->iImage->Image().Texture().ServerHandle(); 
       
    73     params.iTl = aImage.TimedTopLeft();
       
    74     params.iBr = aImage.TimedBottomRight();
       
    75     params.iLeftBorderWidth = iImageBrushData->iLeftBorderWidth;
       
    76     params.iRightBorderWidth = iImageBrushData->iRightBorderWidth;
       
    77     params.iTopBorderWidth = iImageBrushData->iTopBorderWidth;
       
    78     params.iBottomBorderWidth = iImageBrushData->iBottomBorderWidth;
       
    79     
       
    80     TPckgC<TAlfImageBrushParams> paramsPckg(params);
       
    81         
       
    82     CAlfBrush::ConstructL(
       
    83         aEnv,
       
    84         EAlfImageBrushCreate,
       
    85         0,
       
    86         paramsPckg
       
    87         );
       
    88     }
       
    89 
       
    90 
       
    91 // ---------------------------------------------------------------------------
       
    92 // Constructor
       
    93 // ---------------------------------------------------------------------------
       
    94 //
       
    95 EXPORT_C CAlfImageBrush* CAlfImageBrush::NewL(CAlfEnv& aEnv, 
       
    96     const TAlfImage & aImage)
       
    97     {
       
    98     CAlfImageBrush* self = CAlfImageBrush::NewLC( aEnv, aImage );
       
    99     CleanupStack::Pop( self );
       
   100     return self;
       
   101     }
       
   102 
       
   103 
       
   104 // ---------------------------------------------------------------------------
       
   105 // Constructor
       
   106 // ---------------------------------------------------------------------------
       
   107 //
       
   108 EXPORT_C CAlfImageBrush* CAlfImageBrush::NewLC(CAlfEnv& aEnv, 
       
   109     const TAlfImage & aImage)
       
   110     {
       
   111     CAlfImageBrush* self = new( ELeave ) CAlfImageBrush;
       
   112     CleanupStack::PushL( self );
       
   113     self->ConstructL(aEnv, aImage);
       
   114     return self;
       
   115     }
       
   116 
       
   117 
       
   118 // ---------------------------------------------------------------------------
       
   119 // Destructor.
       
   120 // ---------------------------------------------------------------------------
       
   121 //
       
   122 CAlfImageBrush::~CAlfImageBrush()
       
   123     {
       
   124     if ( iImageBrushData )
       
   125         {
       
   126         delete iImageBrushData->iImage;
       
   127         iImageBrushData->iImage = NULL;
       
   128         }
       
   129     delete iImageBrushData;
       
   130     iImageBrushData = NULL;
       
   131     }
       
   132 
       
   133 
       
   134 // ---------------------------------------------------------------------------
       
   135 // Set image
       
   136 // ---------------------------------------------------------------------------
       
   137 //
       
   138 EXPORT_C void CAlfImageBrush::SetImage(const TAlfImage& aImage)
       
   139     {
       
   140     iImageBrushData->iImage->SetImage(aImage); // This texturizes skin graphics if needed
       
   141     
       
   142     TAlfImageBrushParams params;
       
   143     params.iTextureHandle = aImage.Texture().ServerHandle(); 
       
   144     params.iTl = aImage.TimedTopLeft();
       
   145     params.iBr = aImage.TimedBottomRight();
       
   146     params.iLeftBorderWidth = iImageBrushData->iLeftBorderWidth;
       
   147     params.iRightBorderWidth = iImageBrushData->iRightBorderWidth;
       
   148     params.iTopBorderWidth = iImageBrushData->iTopBorderWidth;
       
   149     params.iBottomBorderWidth = iImageBrushData->iBottomBorderWidth;    
       
   150     TPckgC<TAlfImageBrushParams> paramsPckg(params);        
       
   151 
       
   152     TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetImage, paramsPckg);    
       
   153     
       
   154     if ( err )
       
   155         {
       
   156         __ALFLOGSTRING1( "CAlfImageBrush::SetImage ignore error %d", err )
       
   157         }
       
   158     }
       
   159  
       
   160 // ---------------------------------------------------------------------------
       
   161 // Get image
       
   162 // ---------------------------------------------------------------------------
       
   163 //   
       
   164 EXPORT_C const TAlfImage& CAlfImageBrush::Image() const
       
   165     {
       
   166     return iImageBrushData->iImage->Image();
       
   167     }
       
   168 
       
   169 // ---------------------------------------------------------------------------
       
   170 // 
       
   171 // ---------------------------------------------------------------------------
       
   172 //
       
   173 EXPORT_C void CAlfImageBrush::SetBorders(TInt aLeftBorderWidth,
       
   174                              TInt aRightBorderWidth,
       
   175                              TInt aTopBorderHeight,
       
   176                              TInt aBottomBorderHeight)
       
   177     {
       
   178     iImageBrushData->iLeftBorderWidth = aLeftBorderWidth;
       
   179     iImageBrushData->iRightBorderWidth = aRightBorderWidth;
       
   180     iImageBrushData->iTopBorderWidth = aTopBorderHeight;
       
   181     iImageBrushData->iBottomBorderWidth = aBottomBorderHeight;    
       
   182 
       
   183     TAlfImageBrushParams params;
       
   184     params.iLeftBorderWidth = iImageBrushData->iLeftBorderWidth;
       
   185     params.iRightBorderWidth = iImageBrushData->iRightBorderWidth;
       
   186     params.iTopBorderWidth = iImageBrushData->iTopBorderWidth;
       
   187     params.iBottomBorderWidth = iImageBrushData->iBottomBorderWidth;    
       
   188     TPckgC<TAlfImageBrushParams> paramsPckg(params);        
       
   189 
       
   190     TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetBorders, paramsPckg);    
       
   191     
       
   192     if ( err )
       
   193         {
       
   194         __ALFLOGSTRING1( "CAlfImageBrush::SetBorders ignore error %d", err )
       
   195         }
       
   196     }
       
   197 
       
   198 // ---------------------------------------------------------------------------
       
   199 // 
       
   200 // ---------------------------------------------------------------------------
       
   201 //
       
   202 EXPORT_C TBool CAlfImageBrush::BorderDrawingEnabled() const
       
   203     {
       
   204 	return ((iImageBrushData->iLeftBorderWidth!=0) || (iImageBrushData->iRightBorderWidth!=0)		
       
   205 		    || (iImageBrushData->iTopBorderWidth!=0) || (iImageBrushData->iBottomBorderWidth!=0));
       
   206         
       
   207     }
       
   208 
       
   209 // ---------------------------------------------------------------------------
       
   210 // 
       
   211 // ---------------------------------------------------------------------------
       
   212 //
       
   213 EXPORT_C TBool CAlfImageBrush::CenterDrawingEnabled() const
       
   214     {
       
   215 	if(!iImageBrushData->iImage->Image().HasTexture()) 
       
   216 		{
       
   217 		return EFalse;
       
   218 		}				
       
   219 	// determine if there are center pixels available inside borders
       
   220 	// if not, we can't draw the center..
       
   221 	TSize imageSize = iImageBrushData->iImage->Image().Texture().Size();	
       
   222 	if((imageSize.iWidth - iImageBrushData->iLeftBorderWidth - iImageBrushData->iRightBorderWidth <= 0)
       
   223 	   || (imageSize.iHeight - iImageBrushData->iTopBorderWidth - iImageBrushData->iBottomBorderWidth <= 0))
       
   224 		{
       
   225 		return EFalse;
       
   226 		}	  
       
   227 		
       
   228 	return ETrue;        
       
   229     }
       
   230 
       
   231 // ---------------------------------------------------------------------------
       
   232 // Set scale mode for the image brush
       
   233 // ---------------------------------------------------------------------------
       
   234 //
       
   235 EXPORT_C void CAlfImageBrush::SetScaleMode(CAlfImageVisual::TScaleMode aScaleMode)
       
   236     {
       
   237     TPckgC<TInt> paramsPckg(aScaleMode);        
       
   238 
       
   239     TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetScaleMode, paramsPckg );    
       
   240     
       
   241     if ( err )
       
   242         {
       
   243         __ALFLOGSTRING1( "CAlfImageBrush::SetScaleMode panic error %d", err )
       
   244         USER_INVARIANT();
       
   245         }
       
   246     }
       
   247 
       
   248 // ---------------------------------------------------------------------------
       
   249 // Sets offfset for the image
       
   250 // ---------------------------------------------------------------------------
       
   251 //    
       
   252 EXPORT_C void CAlfImageBrush::SetOffset(const TAlfTimedPoint& aOffset)
       
   253     {
       
   254     iImageBrushData->iOffset.iX = aOffset.iX;
       
   255     iImageBrushData->iOffset.iY = aOffset.iY;
       
   256 
       
   257 
       
   258     TPckgC<TAlfTimedPoint> offsetPckg(iImageBrushData->iOffset);
       
   259     
       
   260     TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetOffset, offsetPckg);
       
   261     
       
   262     if ( err )
       
   263         {
       
   264         __ALFLOGSTRING1( "CAlfImageBrush::SetOffset panic error %d", err )
       
   265         USER_INVARIANT();
       
   266         }
       
   267     }
       
   268 
       
   269 // ---------------------------------------------------------------------------
       
   270 // Returns the offset
       
   271 // ---------------------------------------------------------------------------
       
   272 //    
       
   273 EXPORT_C const TAlfTimedPoint& CAlfImageBrush::Offset() const
       
   274     {
       
   275     TPckg<TAlfTimedPoint> offsetPckg(iImageBrushData->iOffset);
       
   276     
       
   277     TInt err = Comms()->DoSynchronousCmd(EAlfImageBrushOffset, KNullDesC8, offsetPckg);
       
   278     
       
   279     if ( err )
       
   280         {
       
   281         __ALFLOGSTRING1( "CAlfImageBrush::Offset ignore error %d", err )
       
   282         }
       
   283 
       
   284     return iImageBrushData->iOffset;
       
   285     }
       
   286 
       
   287 // ---------------------------------------------------------------------------
       
   288 // Sets scale factor
       
   289 // ---------------------------------------------------------------------------
       
   290 //    
       
   291 EXPORT_C void CAlfImageBrush::SetScale(const TAlfTimedValue& aScale)
       
   292     {
       
   293     TPckgC<TAlfTimedValue> buf(aScale);
       
   294 
       
   295     TInt err = Comms()->DoCmdNoReply( EAlfImageBrushSetScale, buf );
       
   296 
       
   297     if ( err == KErrNone )
       
   298         {
       
   299         iImageBrushData->iScale = aScale;
       
   300         }
       
   301     else
       
   302         {
       
   303         __ALFLOGSTRING1( "CAlfImageBrush::SetScale panic error %d", err )
       
   304         USER_INVARIANT();
       
   305         }
       
   306     }
       
   307 
       
   308 // ---------------------------------------------------------------------------
       
   309 // Returns scale factor
       
   310 // ---------------------------------------------------------------------------
       
   311 //    
       
   312 EXPORT_C const TAlfTimedValue& CAlfImageBrush::Scale() const
       
   313     {
       
   314     TPckg<TAlfTimedValue> buf(iImageBrushData->iScale);
       
   315     TInt err = Comms()->DoSynchronousCmd( EAlfImageBrushScale, KNullDesC8, buf);
       
   316 
       
   317     if ( err != KErrNone )
       
   318         {
       
   319         __ALFLOGSTRING1( "CAlfImageBrush::Scale panic error %d", err )
       
   320         USER_INVARIANT();
       
   321         }
       
   322     
       
   323     return iImageBrushData->iScale;
       
   324     }