|
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 #if !defined(__E32BASE_H__) |
|
20 #include <e32base.h> |
|
21 #endif |
|
22 |
|
23 #include "SVGImageElementImpl.h" |
|
24 #include "SVGDocumentImpl.h" |
|
25 #include "SVGEngineImpl.h" |
|
26 #include "SVGSchemaData.h" |
|
27 |
|
28 #include "GfxAffineTransform.h" |
|
29 |
|
30 #include <imcvcodc.h> |
|
31 |
|
32 #include <caf/caf.h> |
|
33 |
|
34 const TInt KErrNoAttributeSet = -1; |
|
35 #define KSVGWAITFORIMAGEDOWNLOAD 1 |
|
36 |
|
37 #define PERIODIC_DELAY 300000 |
|
38 #define PERIODIC_INTERVAL 1000000 |
|
39 |
|
40 _LIT( KSvg, ".svg" ); |
|
41 _LIT( KSvgb, ".svgb" ); |
|
42 |
|
43 |
|
44 |
|
45 // --------------------------------------------------------------------------- |
|
46 // |
|
47 // --------------------------------------------------------------------------- |
|
48 CSvgImageElementImpl* CSvgImageElementImpl::NewL( const TUint8 aElemID, |
|
49 CSvgDocumentImpl* aDoc ) |
|
50 { |
|
51 CSvgImageElementImpl* self = new ( ELeave ) |
|
52 CSvgImageElementImpl( aDoc ); |
|
53 CleanupStack::PushL( self ); |
|
54 self->ConstructL( aElemID, aDoc ); |
|
55 CleanupStack::Pop(); |
|
56 |
|
57 return self; |
|
58 } |
|
59 |
|
60 // --------------------------------------------------------------------------- |
|
61 // |
|
62 // --------------------------------------------------------------------------- |
|
63 CSvgImageElementImpl* CSvgImageElementImpl::NewLC( const TUint8 aElemID, |
|
64 CSvgDocumentImpl* aDoc ) |
|
65 { |
|
66 CSvgImageElementImpl* self = new ( ELeave ) |
|
67 CSvgImageElementImpl( aDoc ); |
|
68 CleanupStack::PushL( self ); |
|
69 self->ConstructL( aElemID,aDoc ); |
|
70 |
|
71 return self; |
|
72 } |
|
73 |
|
74 // --------------------------------------------------------------------------- |
|
75 // |
|
76 // --------------------------------------------------------------------------- |
|
77 void CSvgImageElementImpl::ConstructL( const TUint8 aElemID, |
|
78 CSvgDocumentImpl* /* aDoc */ ) |
|
79 { |
|
80 CSvgElementImpl::InitializeL( aElemID ); |
|
81 |
|
82 |
|
83 iUsedImage = EFalse; |
|
84 // iBitmap = new ( ELeave ) CFbsBitmap(); |
|
85 iReqAttrFlag=KSVG_IMAGE_ELEMFLAG; |
|
86 |
|
87 iSvgStyleProperties = new(ELeave) RPointerArray<CCssValue>(KCSS_MAX_ATTR); |
|
88 User::LeaveIfError( iSvgStyleProperties->Append( NULL ) ); |
|
89 iSvgStyleProperties->Remove( 0 ); |
|
90 iSvgTransformable = CSvgTransformableImpl::NewL(); |
|
91 iSvgUriReferenceImpl = CSvgUriReferenceImpl::NewL(); |
|
92 |
|
93 iBitmapLoadCalled = EFalse; |
|
94 |
|
95 iImgRect.iHeight = TFloatFixPt(-1); |
|
96 iImgRect.iWidth = TFloatFixPt(-1); |
|
97 |
|
98 iIsBase64 = EFalse; |
|
99 } |
|
100 |
|
101 |
|
102 |
|
103 // --------------------------------------------------------------------------- |
|
104 // |
|
105 // --------------------------------------------------------------------------- |
|
106 CSvgImageElementImpl::~CSvgImageElementImpl() |
|
107 { |
|
108 // Reset the notifiers first. |
|
109 NotifyResetReference(); |
|
110 |
|
111 // Check whether there this element refers to an image element. |
|
112 // This would be the case when use is used to refer to a parent |
|
113 // image element. |
|
114 if ( iRefElement ) |
|
115 { |
|
116 iRefElement->RemoveImageElementListener( this ); |
|
117 iRefElement = NULL; |
|
118 } |
|
119 |
|
120 if ( iImageLoader ) |
|
121 { |
|
122 delete iImageLoader; |
|
123 iImageLoader = NULL; |
|
124 } |
|
125 |
|
126 if ( !iUsedImage ) |
|
127 { |
|
128 delete iBitmap; |
|
129 delete iMask; |
|
130 } |
|
131 if ( !iUsedImage && iPar ) |
|
132 { |
|
133 if ( iPar ) |
|
134 { |
|
135 delete iPar; |
|
136 iPar = NULL; |
|
137 } |
|
138 } |
|
139 |
|
140 if ( iImageData ) |
|
141 { |
|
142 delete iImageData; |
|
143 iImageData = NULL; |
|
144 } |
|
145 |
|
146 if ( iSvgUriReferenceImpl ) |
|
147 { |
|
148 delete iSvgUriReferenceImpl; |
|
149 iSvgUriReferenceImpl = NULL; |
|
150 } |
|
151 |
|
152 |
|
153 if ( iSvgStyleProperties ) |
|
154 { |
|
155 iSvgStyleProperties->Close(); |
|
156 delete iSvgStyleProperties; |
|
157 iSvgStyleProperties = NULL; |
|
158 } |
|
159 |
|
160 iImageElementListeners.Close(); |
|
161 |
|
162 if ( iSessionConnected ) |
|
163 { |
|
164 iSession.Close(); |
|
165 } |
|
166 } |
|
167 |
|
168 // --------------------------------------------------------------------------- |
|
169 // |
|
170 // --------------------------------------------------------------------------- |
|
171 void CSvgImageElementImpl::GetBBox( TGfxRectangle2D& aBbox ) |
|
172 { |
|
173 iImgRect.GetBounds( GetCTM(), aBbox ); |
|
174 } |
|
175 |
|
176 // --------------------------------------------------------------------------- |
|
177 // |
|
178 // --------------------------------------------------------------------------- |
|
179 void CSvgImageElementImpl::GetUnscaledBBox( TGfxRectangle2D& aBbox ) |
|
180 { |
|
181 TGfxAffineTransform identityTx; |
|
182 iImgRect.GetBounds( identityTx, aBbox ); |
|
183 } |
|
184 |
|
185 // ******************************************************* |
|
186 // From SVG DOM |
|
187 |
|
188 // --------------------------------------------------------------------------- |
|
189 // |
|
190 // --------------------------------------------------------------------------- |
|
191 TFloatFixPt CSvgImageElementImpl::X() |
|
192 { |
|
193 return iImgRect.iX; |
|
194 } |
|
195 |
|
196 |
|
197 // --------------------------------------------------------------------------- |
|
198 // |
|
199 // --------------------------------------------------------------------------- |
|
200 TFloatFixPt CSvgImageElementImpl::Y() |
|
201 { |
|
202 return iImgRect.iY; |
|
203 } |
|
204 |
|
205 // --------------------------------------------------------------------------- |
|
206 // |
|
207 // --------------------------------------------------------------------------- |
|
208 TFloatFixPt CSvgImageElementImpl::Width() |
|
209 { |
|
210 if (iImgRect.iWidth == TFloatFixPt(-1)) |
|
211 { |
|
212 return TFloatFixPt(0); |
|
213 } |
|
214 |
|
215 return iImgRect.iWidth; |
|
216 } |
|
217 |
|
218 // --------------------------------------------------------------------------- |
|
219 // |
|
220 // --------------------------------------------------------------------------- |
|
221 TFloatFixPt CSvgImageElementImpl::Height() |
|
222 { |
|
223 if (iImgRect.iHeight == TFloatFixPt(-1) ) |
|
224 { |
|
225 return TFloatFixPt(0); |
|
226 } |
|
227 |
|
228 return iImgRect.iHeight; |
|
229 } |
|
230 |
|
231 // ******************************************************* |
|
232 // SVG Implementation |
|
233 |
|
234 |
|
235 // --------------------------------------------------------------------------- |
|
236 // |
|
237 // --------------------------------------------------------------------------- |
|
238 void CSvgImageElementImpl::SetWidth( TFloatFixPt aWidth ) |
|
239 { |
|
240 iRenderImage = !(aWidth <= TFloatFixPt(0)); |
|
241 |
|
242 iImgRect.iWidth = aWidth; |
|
243 |
|
244 } |
|
245 |
|
246 // --------------------------------------------------------------------------- |
|
247 // |
|
248 // --------------------------------------------------------------------------- |
|
249 void CSvgImageElementImpl::SetHeight( TFloatFixPt aHeight ) |
|
250 { |
|
251 iRenderImage = !(aHeight <= TFloatFixPt(0)); |
|
252 |
|
253 iImgRect.iHeight = aHeight; |
|
254 |
|
255 } |
|
256 |
|
257 // --------------------------------------------------------------------------- |
|
258 // |
|
259 // --------------------------------------------------------------------------- |
|
260 void CSvgImageElementImpl::SetParL( const TDesC& aName ) |
|
261 { |
|
262 iPar = aName.AllocL(); |
|
263 } |
|
264 |
|
265 // --------------------------------------------------------------------------- |
|
266 // |
|
267 // --------------------------------------------------------------------------- |
|
268 const TDesC& CSvgImageElementImpl::Par() |
|
269 { |
|
270 if ( iPar ) |
|
271 return *iPar; |
|
272 else |
|
273 return KNullDesC; |
|
274 } |
|
275 |
|
276 // --------------------------------------------------------------------------- |
|
277 // |
|
278 // --------------------------------------------------------------------------- |
|
279 void CSvgImageElementImpl::SetUriL( const TDesC& aUri ) |
|
280 { |
|
281 // Indicate that the Uri is set. This is used to decide whether |
|
282 // to indicate an error if xlink:href attribute was not specified |
|
283 // on the image element. |
|
284 iIsUriSet = ETrue; |
|
285 _LIT( KXlinkHref, "xlink:href" ); |
|
286 SetXlinkAttributeL(KXlinkHref, aUri); |
|
287 CheckRequiredAttributes(); |
|
288 |
|
289 if ( Href().Length() == 0) |
|
290 { |
|
291 //empty URI string...do nothing |
|
292 //JSR 226 tests start out with empty string |
|
293 return; |
|
294 } |
|
295 |
|
296 //We have to be careful in this method searching the entire string |
|
297 //because we can get the entire |
|
298 //base64 encoded image coming through this call |
|
299 |
|
300 // Verify xlink for JavaInterface |
|
301 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
302 //if ( document && aUri.Length() > 0) |
|
303 if ( document ) |
|
304 { |
|
305 // Check for local URI (#uri) |
|
306 //if ( aUri.Locate( '#' ) != KErrNotFound || aUri.Length() == 0) |
|
307 if ( Href().Left(1) == _L("#") ) |
|
308 { |
|
309 document->SetError( KErrNotFound, _L( "Usage of local URI in <image>: " ), aUri ); |
|
310 } |
|
311 else |
|
312 { |
|
313 _LIT( KHttp, "http://" ); |
|
314 _LIT( KData, "data:"); |
|
315 |
|
316 if ( ( Href().Length() >= 7 ) && ( Href().Left( 7 ) == KHttp ) ) |
|
317 { |
|
318 //using an http address for the image |
|
319 return; |
|
320 } |
|
321 else if ( ( Href().Length() >= 5 ) && ( Href().Left( 5 ) == KData ) ) |
|
322 { |
|
323 //this is a base 64 image |
|
324 iIsBase64 = ETrue; |
|
325 return; |
|
326 } |
|
327 else |
|
328 { |
|
329 _LIT( KJpgFile, ".jpg"); |
|
330 _LIT( KPngFile, ".png"); |
|
331 _LIT( KSvgFile, ".svg"); |
|
332 |
|
333 // Check for relative URI |
|
334 if ( aUri.Locate( '/' ) == KErrNotFound) |
|
335 { |
|
336 //plain image used...but is this relative?!? |
|
337 //does JSR 226 need an error thrown on this? |
|
338 //i.e. image.jpg |
|
339 if (aUri.Right(4) == KJpgFile) |
|
340 { |
|
341 //this is a plain image.jpg |
|
342 return; |
|
343 } |
|
344 else if (aUri.Right(4) == KPngFile) |
|
345 { |
|
346 //this is a plain image.png file |
|
347 return; |
|
348 } |
|
349 else if (aUri.Right(4) == KSvgFile) |
|
350 { |
|
351 //this is a filename.svg file |
|
352 document->SetError(KErrNotFound, _L("Usage of SVG file in xlink-href:"), aUri); |
|
353 } |
|
354 return; |
|
355 } |
|
356 /*if ( aUri.Find( KFile ) != 1 || !TChar( aUri[0] ).IsAlpha() ) |
|
357 { |
|
358 document->SetError( KErrNotFound, _L( "Usage of relative URI in <image>: " ), aUri ); |
|
359 } |
|
360 else |
|
361 { |
|
362 //this is an absolute image |
|
363 //i.e. c:/folder/image.jpg |
|
364 }*/ |
|
365 } |
|
366 } |
|
367 } |
|
368 } |
|
369 |
|
370 // --------------------------------------------------------------------------- |
|
371 // |
|
372 // --------------------------------------------------------------------------- |
|
373 void CSvgImageElementImpl::LoadUriL() |
|
374 { |
|
375 if ( Href().Length() == 0 ) |
|
376 { |
|
377 #ifdef _DEBUG |
|
378 RDebug::Printf("CSvgImageElementImpl::LoadUriL()--iUri is NULL or empty."); |
|
379 #endif |
|
380 return; |
|
381 } |
|
382 iBitmapLoadCalled = ETrue; |
|
383 iSessionConnected = EFalse; |
|
384 |
|
385 // Cannot continue without SvgEngine instance or |
|
386 // MSvgRequestObserver is not set |
|
387 |
|
388 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
389 if ( document == NULL ) |
|
390 { |
|
391 #ifdef _DEBUG |
|
392 RDebug::Printf("CSvgImageElementImpl::LoadUriL--document handle null"); |
|
393 #endif |
|
394 return; |
|
395 } |
|
396 |
|
397 // Request |
|
398 if ( ( Href().Length() >= 4 && Href().Right( 4 ) == KSvg ) || |
|
399 ( Href().Length() >= 5 && Href().Right( 5 ) == KSvgb ) ) |
|
400 { |
|
401 iIsSvgFile = ETrue; |
|
402 } |
|
403 |
|
404 // Don't call LoadUriL if LoadingListener exists and LoadingListener::WillAssignImageData returns ETrue |
|
405 if ( document ) |
|
406 { |
|
407 const RPointerArray<MSvgLoadingListener>* listeners = document->GetLoadingListeners(); |
|
408 if ( listeners && listeners->Count() > 0 ) |
|
409 { |
|
410 if ( (*listeners)[0]->WillAssignImageData() ) |
|
411 { |
|
412 (*listeners)[0]->ImageDataReference( Href() ); |
|
413 return; |
|
414 } |
|
415 } |
|
416 } |
|
417 |
|
418 // Embedded image |
|
419 if ( ( Href().Length() >= 5 ) && ( Href().Left( 5 ) == _L( "data:" ) ) ) |
|
420 { |
|
421 ProcessEncodedImageL( Href() ); |
|
422 return; |
|
423 } |
|
424 |
|
425 iBitmapOrgReady = EFalse; |
|
426 iBitmapReady = EFalse; |
|
427 |
|
428 CSvgEngineImpl* engine = document->Engine(); |
|
429 if ( engine == NULL || engine->iRequestObserver == NULL ) |
|
430 { |
|
431 #ifdef _DEBUG |
|
432 RDebug::Printf("CSvgImageElementImpl::LoadUriL--engine handle null"); |
|
433 #endif |
|
434 return; |
|
435 } |
|
436 |
|
437 // Connect session |
|
438 RFile fileHandle; |
|
439 if ( iSession.Connect() != KErrNone ) |
|
440 { |
|
441 return; |
|
442 } |
|
443 iSessionConnected = ETrue; |
|
444 TInt status = engine->iRequestObserver->FetchImage( Href(), iSession, fileHandle ); |
|
445 if ( status == KErrNone ) |
|
446 { |
|
447 // prevent division by zero (DrawL) when image fails to load |
|
448 CFbsBitmap* aBitmap = new ( ELeave ) CFbsBitmap(); |
|
449 CleanupStack::PushL( aBitmap ); |
|
450 TInt lCreateErr = aBitmap->Create( TSize( 1, 1 ), EColor64K ); |
|
451 if ( lCreateErr != KErrNone ) |
|
452 { |
|
453 // Error in creation, destroy the bitmap and return |
|
454 CleanupStack::PopAndDestroy( aBitmap ); |
|
455 return; |
|
456 } |
|
457 // Ownership is about to be tranferred to Image Element |
|
458 CleanupStack::Pop( aBitmap ); |
|
459 TInt lDecodeErr = StartImageDecoding( fileHandle, aBitmap, ETrue ); |
|
460 if ( lDecodeErr != KErrNone ) |
|
461 { |
|
462 // No error Processing |
|
463 } |
|
464 } |
|
465 else |
|
466 { |
|
467 iSession.Close(); |
|
468 iSessionConnected = EFalse; |
|
469 } |
|
470 } |
|
471 |
|
472 void CSvgImageElementImpl::PrepareImageFromSvgFile(const TDesC8& aImageData) |
|
473 { |
|
474 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
475 if ( !document ) |
|
476 { |
|
477 return; |
|
478 } |
|
479 |
|
480 CSvgEngineImpl* engine = document->Engine(); |
|
481 if ( !engine ) |
|
482 { |
|
483 return; |
|
484 } |
|
485 TSize bitmapSize( (TInt32)Width(), (TInt32)Height() ); |
|
486 if ( !iBitmap ) |
|
487 { |
|
488 iBitmap = new CFbsBitmap(); |
|
489 } |
|
490 if(!iMask) |
|
491 { |
|
492 iMask = new CFbsBitmap(); |
|
493 } |
|
494 if(iMask) |
|
495 { |
|
496 iMask->Create( bitmapSize, EGray256); |
|
497 } |
|
498 // Can't use ELeave because this function can't leave |
|
499 // Using ELeave but didn't handle (no trap or propagate to parents) causes more confusing. |
|
500 // Check for NULL is good enough. |
|
501 // Ignore CodeScanner error (Code Review Guide) |
|
502 if (iBitmap) |
|
503 { |
|
504 iBitmap->Create( bitmapSize, EColor16MU ); |
|
505 |
|
506 TBool preserveRatio = !( iPar != NULL && *iPar == _L( "none" ) ); |
|
507 // RenderFileToBuffer if uri is a svg file |
|
508 TInt err = engine->RenderFileToBuffer( aImageData, iBitmap,iMask, preserveRatio ); |
|
509 ImageLoadingCompleted(err); |
|
510 } |
|
511 iSession.Close(); |
|
512 } |
|
513 // --------------------------------------------------------------------------- |
|
514 // |
|
515 // --------------------------------------------------------------------------- |
|
516 |
|
517 void CSvgImageElementImpl::ProcessEncodedImageL( const TDesC& aXlinkHrefValue ) |
|
518 { |
|
519 // find positions for ';' and ',' to determine encoding, mimetype |
|
520 TInt startIndex = aXlinkHrefValue.Locate( ';' ); |
|
521 TInt endIndex = aXlinkHrefValue.Locate( ',' ); |
|
522 |
|
523 // mimetype is after 'data:' : xlink:href="data:image/png;base64, |
|
524 // ignore mimetype extraction, decode will detect mimetype from decoded data. |
|
525 |
|
526 if ( startIndex != KErrNotFound && endIndex != KErrNotFound && |
|
527 startIndex < endIndex ) |
|
528 { |
|
529 // extract encoding type |
|
530 TPtrC encoding( aXlinkHrefValue.Left( endIndex ).Right( endIndex - startIndex - 1 ) ); |
|
531 // handle Base64 encoding |
|
532 _LIT( KEncodingBase64, "base64" ); |
|
533 if ( encoding == KEncodingBase64 ) |
|
534 { |
|
535 // find index of first character after white-space |
|
536 TInt index = endIndex + 1; |
|
537 while ( index < aXlinkHrefValue.Length() && TChar( aXlinkHrefValue[index] ).IsSpace() ) |
|
538 index++; |
|
539 |
|
540 // must be 8-bit |
|
541 TInt length = aXlinkHrefValue.Length() - index; |
|
542 HBufC8* encoded = HBufC8::NewLC( length ); |
|
543 encoded->Des().Copy( aXlinkHrefValue.Right( length ) ); |
|
544 |
|
545 // Assign to member variable to destroy after image is process. |
|
546 iImageData = HBufC8::NewL( length ); |
|
547 TPtr8 decodedDes = iImageData->Des(); |
|
548 |
|
549 // decode |
|
550 TImCodecB64 encodingBase64; |
|
551 TInt decodeError = encodingBase64.Decode( *encoded, decodedDes ); |
|
552 CleanupStack::PopAndDestroy( encoded ); |
|
553 |
|
554 if ( decodeError == KErrNone ) |
|
555 { |
|
556 // prevent division by zero (DrawL) when image fails to load |
|
557 CFbsBitmap* lBitmap = new ( ELeave ) CFbsBitmap(); |
|
558 CleanupStack::PushL( lBitmap ); |
|
559 TInt lCreateErr = lBitmap->Create( TSize( 1, 1 ), EColor64K ); |
|
560 if ( lCreateErr != KErrNone ) |
|
561 { |
|
562 // Error creating bitmap, delete bitmap and return |
|
563 CleanupStack::PopAndDestroy( lBitmap ); |
|
564 return; |
|
565 } |
|
566 // Ownership of aBitmap is about to be transferred to image |
|
567 // element |
|
568 CleanupStack::Pop( lBitmap ); |
|
569 // If bitmap was already present, release it |
|
570 if ( iBitmap ) |
|
571 { |
|
572 delete iBitmap; |
|
573 iBitmap = NULL; |
|
574 } |
|
575 iBitmap = lBitmap; |
|
576 TInt lImgDecErr = StartImageDecoding( *iImageData, |
|
577 ETrue ); // ETrue means Synchronous Loading |
|
578 if ( lImgDecErr != KErrNone ) |
|
579 { |
|
580 // No Error Processing |
|
581 } |
|
582 } |
|
583 } |
|
584 } |
|
585 } |
|
586 |
|
587 // ******************************************************* |
|
588 // From MXmlElement |
|
589 |
|
590 // --------------------------------------------------------------------------- |
|
591 // |
|
592 // --------------------------------------------------------------------------- |
|
593 TInt CSvgImageElementImpl::SetAttributeL( const TDesC& aName, |
|
594 const TDesC& aValue ) |
|
595 { |
|
596 _LIT( KTmpUri, "xlink:href" ); |
|
597 _LIT( KTmpPreserveAspectRatio, "preserveAspectRatio" ); |
|
598 |
|
599 if ( this->SetXlinkAttributeL( aName, aValue ) ) |
|
600 { |
|
601 if ( aName == KTmpUri ) |
|
602 { |
|
603 SetUriL( aValue ); |
|
604 CheckRequiredAttributes(); |
|
605 } |
|
606 return KErrNone; |
|
607 } |
|
608 |
|
609 |
|
610 CSvgElementImpl::SetAttributeL(aName,aValue); |
|
611 |
|
612 if ( aName == KTmpPreserveAspectRatio ) |
|
613 { |
|
614 SetParL( aValue ); |
|
615 } |
|
616 |
|
617 return KErrNoAttributeSet; |
|
618 } |
|
619 |
|
620 |
|
621 |
|
622 // From MXmlElementOpt |
|
623 |
|
624 // --------------------------------------------------------------------------- |
|
625 // |
|
626 // --------------------------------------------------------------------------- |
|
627 TInt CSvgImageElementImpl::GetAttributeFloat( const TInt aNameId, |
|
628 TFloatFixPt& aValue ) |
|
629 { |
|
630 switch ( aNameId ) |
|
631 { |
|
632 case KAtrX: |
|
633 case KAtrRefX: |
|
634 aValue = X(); |
|
635 break; |
|
636 case KAtrY: |
|
637 case KAtrRefY: |
|
638 aValue = Y(); |
|
639 break; |
|
640 case KAtrHeight: |
|
641 aValue = Height(); |
|
642 break; |
|
643 case KAtrWidth: |
|
644 aValue = Width(); |
|
645 break; |
|
646 default: |
|
647 return CSvgElementImpl::GetAttributeFloat( aNameId, aValue ); |
|
648 } |
|
649 |
|
650 return KErrNone; |
|
651 } |
|
652 |
|
653 // --------------------------------------------------------------------------- |
|
654 // |
|
655 // --------------------------------------------------------------------------- |
|
656 TInt CSvgImageElementImpl::SetAttributeFloatL( const TInt aNameId, |
|
657 const TFloatFixPt aValue ) |
|
658 { |
|
659 switch ( aNameId ) |
|
660 { |
|
661 case KAtrX: |
|
662 iImgRect.iX = aValue; |
|
663 break; |
|
664 case KAtrY: |
|
665 iImgRect.iY = aValue; |
|
666 break; |
|
667 |
|
668 case KAtrHeight: |
|
669 SetHeight( aValue ); |
|
670 CheckRequiredAttributes(); |
|
671 break; |
|
672 |
|
673 case KAtrWidth: |
|
674 SetWidth( aValue ); |
|
675 CheckRequiredAttributes(); |
|
676 break; |
|
677 |
|
678 default: |
|
679 return CSvgElementImpl::SetAttributeFloatL( aNameId, aValue ); |
|
680 } |
|
681 |
|
682 return KErrNone; |
|
683 } |
|
684 |
|
685 // --------------------------------------------------------------------------- |
|
686 // |
|
687 // --------------------------------------------------------------------------- |
|
688 TInt CSvgImageElementImpl::SetAttributeDesL( const TInt aNameId, |
|
689 const TDesC& aValue ) |
|
690 { |
|
691 switch ( aNameId ) |
|
692 { |
|
693 case KAtrXlinkhref: |
|
694 SetUriL( aValue ); |
|
695 CheckRequiredAttributes(); |
|
696 break; |
|
697 default: |
|
698 return CSvgElementImpl::SetAttributeDesL( aNameId, aValue ); |
|
699 } |
|
700 return KErrNone; |
|
701 } |
|
702 |
|
703 void CSvgImageElementImpl::ImageLoadingCompleted( TInt aError ) |
|
704 { |
|
705 iBitmapReady = aError != KErrCancel; |
|
706 if ( aError == KErrNone ) |
|
707 { |
|
708 |
|
709 PrepareImageWithMask(); |
|
710 iBitmapOrgReady = ETrue; |
|
711 // Notify clones that the bitmap is ready. |
|
712 |
|
713 |
|
714 NotifyImageDecoded(); |
|
715 |
|
716 // The redraw needs to be done once the image element is decoded, |
|
717 // so that the image is rendered in place in the content. |
|
718 // If the decoding is done asynchronously, the client does not know |
|
719 // when the decoding was completed hence it cannot perform a redraw() |
|
720 // In such a scenario, the image element itself triggers a redraw. |
|
721 |
|
722 if(iImageLoader && !(iImageLoader->IsSynchronousLoading())) |
|
723 { |
|
724 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
725 if(document) |
|
726 { |
|
727 CSvgEngineImpl* engine =document->Engine(); |
|
728 if(engine) |
|
729 { |
|
730 engine->ImageLoadingCompleted(aError); |
|
731 } |
|
732 } |
|
733 } |
|
734 } // if ( aError == KErrNone ) |
|
735 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
736 if(document) |
|
737 { |
|
738 document->ImageLoadingCompleted(aError); |
|
739 } |
|
740 |
|
741 |
|
742 |
|
743 |
|
744 if ( iSessionConnected ) |
|
745 { |
|
746 iSession.Close(); |
|
747 iSessionConnected = EFalse; |
|
748 } |
|
749 } |
|
750 |
|
751 // --------------------------------------------------------------------------- |
|
752 // void CSvgImageElementImpl::PrepareImageWithMask() |
|
753 // Combines mask information into main bitmap for use with OpenVG |
|
754 // --------------------------------------------------------------------------- |
|
755 void CSvgImageElementImpl::PrepareImageWithMask() |
|
756 { |
|
757 if ( iBitmap && iMask ) |
|
758 { |
|
759 TSize size = iMask->SizeInPixels(); |
|
760 // If size of bitmap and mask do not match, cannot process mask |
|
761 if ( size != iBitmap->SizeInPixels() ) |
|
762 { |
|
763 return; |
|
764 } |
|
765 iBitmap->LockHeap(); |
|
766 iMask->LockHeap(); |
|
767 |
|
768 TUint32* bitmapData = (TUint32*)iBitmap->DataAddress(); |
|
769 TUint8* maskData = (TUint8*)iMask->DataAddress(); |
|
770 |
|
771 TInt lBmpSLLen = CFbsBitmap::ScanLineLength( size.iWidth, |
|
772 iBitmap->DisplayMode() ); |
|
773 |
|
774 TInt lMaskSLLen = CFbsBitmap::ScanLineLength( size.iWidth, |
|
775 iMask->DisplayMode() ); |
|
776 |
|
777 TInt count = size.iWidth * size.iHeight; |
|
778 TUint32* lBitmapCurPtr = bitmapData; |
|
779 TUint8* lMaskCurPtr = maskData; |
|
780 |
|
781 for ( TInt lIndex = 1; lIndex < count; lIndex++ ) |
|
782 { |
|
783 // Converting from ARGB to RGBA8888 |
|
784 *lBitmapCurPtr = ( *lBitmapCurPtr & 0x00FFFFFF ) << 8 | *lMaskCurPtr; |
|
785 // Check if one row is complete |
|
786 if ( lIndex % size.iWidth == 0 ) |
|
787 { |
|
788 // One row of pixels is complete. Now reposition the |
|
789 // lBitmapCurPtr, lMaskCurPtr to point to beginning of new row. |
|
790 // Current row is given by (index/widthMask) |
|
791 // |
|
792 // In order to get offset to first pixel, we need to |
|
793 // perform following |
|
794 // BasePtr + Current row * (row width in bytes) |
|
795 lBitmapCurPtr =(TUint32*)((TUint8*)bitmapData + ( ( lIndex / size.iWidth ) |
|
796 * lBmpSLLen )); |
|
797 lMaskCurPtr = maskData + ( ( lIndex / size.iWidth ) |
|
798 * lMaskSLLen ); |
|
799 } |
|
800 else |
|
801 { |
|
802 // Still within the row, keep incrementing |
|
803 lBitmapCurPtr++; |
|
804 lMaskCurPtr++; |
|
805 } |
|
806 } |
|
807 iMask->UnlockHeap(); |
|
808 iBitmap->UnlockHeap(); |
|
809 } |
|
810 } |
|
811 |
|
812 // ******************************************************* |
|
813 // From CSvgElementImpl |
|
814 |
|
815 // perform a deep clone of this object |
|
816 // --------------------------------------------------------------------------- |
|
817 // |
|
818 // --------------------------------------------------------------------------- |
|
819 MXmlElement* CSvgImageElementImpl::CloneL(MXmlElement* aParentElement) |
|
820 { |
|
821 CSvgImageElementImpl* newElement = CSvgImageElementImpl::NewL( this->ElemID(), ((CSvgDocumentImpl*)iOwnerDocument) ); |
|
822 |
|
823 CleanupStack::PushL(newElement); |
|
824 newElement->iParentNode = aParentElement; |
|
825 // copy everything over |
|
826 this->CopyL(newElement); |
|
827 CleanupStack::Pop(); |
|
828 // Add the cloned element to image decode notification list. |
|
829 // This is done to ensure that the image is decoded only once. |
|
830 AddImageElementListener( newElement ); |
|
831 newElement->SetReferenceElement( this ); |
|
832 return newElement; |
|
833 } |
|
834 |
|
835 // --------------------------------------------------------------------------- |
|
836 // |
|
837 // --------------------------------------------------------------------------- |
|
838 TBool CSvgImageElementImpl::DrawL( CGfx2dGc* aGc, CSvgElementImpl* aElement ) |
|
839 { |
|
840 // Set Gc |
|
841 this->DrawShapeL( aGc, aElement ); |
|
842 |
|
843 if ( iBitmap == NULL ) |
|
844 return ETrue; |
|
845 TSize imageSize = iBitmap->SizeInPixels(); //. |
|
846 if ( imageSize.iWidth == 0 || imageSize.iHeight == 0 ) |
|
847 return ETrue; |
|
848 |
|
849 const TGfxAffineTransform& currentTM = GetCTM(); |
|
850 |
|
851 aGc->SetTransform( currentTM ); |
|
852 |
|
853 if ( iBitmapReady && iRenderImage && iBitmap ) |
|
854 { |
|
855 aGc->DrawImage( iBitmap, iImgRect, iMask != NULL ); |
|
856 } |
|
857 else if ( iBitmapOrgReady && iRenderImage ) |
|
858 { |
|
859 aGc->SetForegroundColor( TGfxColor( 0xaaaaaa ) ); |
|
860 aGc->SetPaint( NULL ); |
|
861 aGc->DrawL( &iImgRect ); |
|
862 } |
|
863 return ETrue; |
|
864 } |
|
865 |
|
866 // ******************************************************* |
|
867 // Private |
|
868 |
|
869 // --------------------------------------------------------------------------- |
|
870 // |
|
871 // --------------------------------------------------------------------------- |
|
872 CSvgImageElementImpl::CSvgImageElementImpl( CSvgDocumentImpl* aDoc ) : |
|
873 iRenderImage ( ETrue ), |
|
874 iIsUriSet( EFalse ), |
|
875 iImageDecodingDone(EFalse), |
|
876 iBitmapReady( EFalse ) |
|
877 { |
|
878 SetOwnerDocument(aDoc); |
|
879 iBitmap = NULL; |
|
880 iMask = NULL; |
|
881 } |
|
882 |
|
883 // --------------------------------------------------------------------------- |
|
884 // perform a deep copy of this object |
|
885 // --------------------------------------------------------------------------- |
|
886 void CSvgImageElementImpl::CopyL( CSvgImageElementImpl* aDestElement ) |
|
887 { |
|
888 if(aDestElement) |
|
889 { |
|
890 // copy stuff from superclass |
|
891 this->CSvgElementImpl::CopyL(aDestElement); |
|
892 |
|
893 // copy items special to CSvgImageElementImpl |
|
894 aDestElement->iUsedImage = ETrue; // this is not original image |
|
895 delete aDestElement->iBitmap; // delete old |
|
896 aDestElement->iBitmap = this->iBitmap; // borrow new |
|
897 aDestElement->iImgRect = this->iImgRect; |
|
898 aDestElement->iPar = this->iPar; |
|
899 aDestElement->iBitmapOrgReady = ETrue; |
|
900 aDestElement->iBitmapReady = ETrue; |
|
901 aDestElement->iRenderImage = ETrue; |
|
902 aDestElement->iIsBase64 = this->iIsBase64; |
|
903 |
|
904 // copy the reference to idoc (CSvgDocumentImpl) |
|
905 aDestElement->iOwnerDocument = this->iOwnerDocument; |
|
906 } |
|
907 |
|
908 |
|
909 } |
|
910 |
|
911 /********************* Helping Class **************************/ |
|
912 |
|
913 // --------------------------------------------------------------------------- |
|
914 // Two-phased constructor |
|
915 // --------------------------------------------------------------------------- |
|
916 CSvgImageElementImpl::CSvgImageLoaderUtil* CSvgImageElementImpl::CSvgImageLoaderUtil::NewL( |
|
917 MSVGImageLoadingObserver* aObserver, |
|
918 RFile& aFileHandle, |
|
919 TBool aSyncLoading ) |
|
920 { |
|
921 CSvgImageLoaderUtil* self = new ( ELeave ) CSvgImageLoaderUtil( ); |
|
922 CleanupStack::PushL( self ); |
|
923 self->ConstructL( aObserver, aFileHandle, aSyncLoading ); |
|
924 CleanupStack::Pop(); |
|
925 return self; |
|
926 } |
|
927 |
|
928 // --------------------------------------------------------------------------- |
|
929 // Two-phased constructor |
|
930 // --------------------------------------------------------------------------- |
|
931 CSvgImageElementImpl::CSvgImageLoaderUtil* CSvgImageElementImpl::CSvgImageLoaderUtil::NewL( |
|
932 MSVGImageLoadingObserver* aObserver, |
|
933 const TDesC8& aEncodedData, |
|
934 TBool aSyncLoading ) |
|
935 { |
|
936 CSvgImageLoaderUtil* self = new ( ELeave ) CSvgImageLoaderUtil( ); |
|
937 CleanupStack::PushL( self ); |
|
938 self->ConstructL( aObserver, aEncodedData, aSyncLoading ); |
|
939 CleanupStack::Pop(); |
|
940 return self; |
|
941 } |
|
942 |
|
943 // --------------------------------------------------------------------------- |
|
944 // Destructor |
|
945 // --------------------------------------------------------------------------- |
|
946 CSvgImageElementImpl::CSvgImageLoaderUtil::~CSvgImageLoaderUtil() |
|
947 { |
|
948 Cancel(); |
|
949 if(iImageDecoder) |
|
950 { |
|
951 delete iImageDecoder; |
|
952 iImageDecoder = NULL; |
|
953 } |
|
954 if ( iActiveSchedulerWait ) |
|
955 { |
|
956 delete iActiveSchedulerWait; |
|
957 } |
|
958 if(iImageByteData) |
|
959 { |
|
960 delete iImageByteData; |
|
961 iImageByteData=NULL; |
|
962 } |
|
963 } |
|
964 |
|
965 // --------------------------------------------------------------------------- |
|
966 // Set the display mode (color mode), the default value is EColor64K. |
|
967 // --------------------------------------------------------------------------- |
|
968 void CSvgImageElementImpl::CSvgImageLoaderUtil::SetDisplayMode( TDisplayMode aDisplayMode ) |
|
969 { |
|
970 iDisplayMode = aDisplayMode; |
|
971 } |
|
972 |
|
973 // --------------------------------------------------------------------------- |
|
974 // Returns the FrameInfo of Image |
|
975 // --------------------------------------------------------------------------- |
|
976 TFrameInfo CSvgImageElementImpl::CSvgImageLoaderUtil::GetFrameInfo() |
|
977 { |
|
978 return iImageDecoder->FrameInfo(); |
|
979 } |
|
980 |
|
981 |
|
982 // --------------------------------------------------------------------------- |
|
983 // Request asynchronously for the image, sized to the image size. |
|
984 // --------------------------------------------------------------------------- |
|
985 void CSvgImageElementImpl::CSvgImageLoaderUtil::RequestForImageL( CFbsBitmap& aBitmap, |
|
986 CFbsBitmap& aMask, |
|
987 TBool aHasAlpha, |
|
988 TFrameInfo aFrameInfo ) |
|
989 { |
|
990 if ( iImageDecoder != NULL ) |
|
991 { |
|
992 if ( aHasAlpha ) |
|
993 { |
|
994 User::LeaveIfError( aMask.Create( aFrameInfo.iOverallSizeInPixels, EGray256 ) ); |
|
995 User::LeaveIfError( aBitmap.Create( aFrameInfo.iOverallSizeInPixels, EColor16MU ) ); |
|
996 iImageDecoder->Convert( &iStatus, aBitmap, aMask, 0 ); |
|
997 } |
|
998 else |
|
999 { |
|
1000 User::LeaveIfError( aBitmap.Create( aFrameInfo.iOverallSizeInPixels, EColor64K ) ); |
|
1001 iImageDecoder->Convert( &iStatus, aBitmap, 0 ); |
|
1002 } |
|
1003 |
|
1004 SetActive(); |
|
1005 if ( iActiveSchedulerWait ) |
|
1006 { |
|
1007 iActiveSchedulerWait->Start(); |
|
1008 } |
|
1009 } |
|
1010 else |
|
1011 { |
|
1012 iObserver->ImageLoadingCompleted( KErrNotFound ); |
|
1013 } |
|
1014 } |
|
1015 |
|
1016 // --------------------------------------------------------------------------- |
|
1017 // Override method from CActive, called upon successful completion of request |
|
1018 // --------------------------------------------------------------------------- |
|
1019 void CSvgImageElementImpl::CSvgImageLoaderUtil::RunL() |
|
1020 { |
|
1021 if ( iActiveSchedulerWait ) |
|
1022 { |
|
1023 iActiveSchedulerWait->AsyncStop(); |
|
1024 } |
|
1025 if ( iObserver ) |
|
1026 { |
|
1027 iObserver->ImageLoadingCompleted( iStatus.Int() ); |
|
1028 } |
|
1029 } |
|
1030 |
|
1031 // --------------------------------------------------------------------------- |
|
1032 // Override method from CActive, called upon a cancel of request |
|
1033 // --------------------------------------------------------------------------- |
|
1034 void CSvgImageElementImpl::CSvgImageLoaderUtil::DoCancel() |
|
1035 { |
|
1036 if ( iImageDecoder != NULL ) |
|
1037 { |
|
1038 iImageDecoder->Cancel(); |
|
1039 } |
|
1040 |
|
1041 // must delete decoder immediate or exception occurs in destructor. |
|
1042 delete iImageDecoder; |
|
1043 iImageDecoder = NULL; |
|
1044 iObserver->ImageLoadingCompleted( KErrCancel ); |
|
1045 } |
|
1046 |
|
1047 // --------------------------------------------------------------------------- |
|
1048 // Override method from CActive, called upon an error from request |
|
1049 // --------------------------------------------------------------------------- |
|
1050 TInt CSvgImageElementImpl::CSvgImageLoaderUtil::RunError( TInt aError ) |
|
1051 { |
|
1052 // must delete decoder immediate or exception occurs in destructor. |
|
1053 delete iImageDecoder; |
|
1054 iImageDecoder = NULL; |
|
1055 iObserver->ImageLoadingCompleted( aError ); |
|
1056 return KErrNone; |
|
1057 } |
|
1058 |
|
1059 // --------------------------------------------------------------------------- |
|
1060 // Constructor |
|
1061 // --------------------------------------------------------------------------- |
|
1062 CSvgImageElementImpl::CSvgImageLoaderUtil::CSvgImageLoaderUtil() : CActive( EPriorityNormal ) |
|
1063 { |
|
1064 SetDisplayMode( EColor64K ); |
|
1065 CActiveScheduler::Add( this ); |
|
1066 } |
|
1067 |
|
1068 // --------------------------------------------------------------------------- |
|
1069 // Second phase Construction |
|
1070 // --------------------------------------------------------------------------- |
|
1071 void CSvgImageElementImpl::CSvgImageLoaderUtil::ConstructL( |
|
1072 MSVGImageLoadingObserver* aObserver, |
|
1073 RFile& aFileHandle, |
|
1074 TBool aSyncLoading ) |
|
1075 { |
|
1076 iObserver = aObserver; |
|
1077 iIsSyncLoading=aSyncLoading; |
|
1078 |
|
1079 // Reset to start of file |
|
1080 TInt zero = 0; |
|
1081 aFileHandle.Seek( ESeekStart, zero ); |
|
1082 |
|
1083 TInt fileSize = 0; |
|
1084 TInt sizeError = aFileHandle.Size( fileSize ); |
|
1085 if ( sizeError != KErrNone ) |
|
1086 { |
|
1087 |
|
1088 return; |
|
1089 } |
|
1090 |
|
1091 |
|
1092 iImageByteData = HBufC8::New ( fileSize ); |
|
1093 |
|
1094 if (!iImageByteData) |
|
1095 { |
|
1096 |
|
1097 return; |
|
1098 } |
|
1099 |
|
1100 TPtr8 binaryBufferPtr = iImageByteData->Des(); |
|
1101 |
|
1102 // Read the image data into a buffer. |
|
1103 TInt readError = aFileHandle.Read(binaryBufferPtr, fileSize); |
|
1104 if ( readError != KErrNone ) |
|
1105 { |
|
1106 delete iImageByteData; |
|
1107 iImageByteData = NULL; |
|
1108 return; |
|
1109 } |
|
1110 // Unused parameter |
|
1111 RFs session; |
|
1112 iImageDecoder = CImageDecoder::DataNewL( session, *iImageByteData, CImageDecoder::TOptions( CImageDecoder::EAllowGeneratedMask | |
|
1113 CImageDecoder::EOptionAlwaysThread )); |
|
1114 iImageDecoder->SetDecoderThreadPriority( EPriorityNormal ); |
|
1115 |
|
1116 if ( aSyncLoading ) |
|
1117 { |
|
1118 iActiveSchedulerWait = new (ELeave) CActiveSchedulerWait(); |
|
1119 } |
|
1120 } |
|
1121 |
|
1122 void CSvgImageElementImpl::CSvgImageLoaderUtil::ConstructL( MSVGImageLoadingObserver* aObserver, |
|
1123 const TDesC8& aEncodedData, |
|
1124 TBool aSyncLoading ) |
|
1125 { |
|
1126 iObserver = aObserver; |
|
1127 iIsSyncLoading=aSyncLoading; |
|
1128 // Unused parameter |
|
1129 RFs session; |
|
1130 iImageDecoder = CImageDecoder::DataNewL( session, aEncodedData, CImageDecoder::TOptions( CImageDecoder::EAllowGeneratedMask | |
|
1131 CImageDecoder::EOptionAlwaysThread )); |
|
1132 iImageDecoder->SetDecoderThreadPriority( EPriorityNormal ); |
|
1133 if ( aSyncLoading ) |
|
1134 { |
|
1135 iActiveSchedulerWait = new (ELeave) CActiveSchedulerWait(); |
|
1136 } |
|
1137 } |
|
1138 |
|
1139 TInt CSvgImageElementImpl::GetAttributeDes( const TInt aNameId, |
|
1140 TPtrC16& aValue ) |
|
1141 { |
|
1142 if(aNameId == KAtrPreserveAspectRatio) |
|
1143 { |
|
1144 aValue.Set( Par() ); |
|
1145 return KErrNone; |
|
1146 } |
|
1147 // added for updation of Get/Set |
|
1148 if( aNameId == KAtrXlinkhref ) |
|
1149 { |
|
1150 aValue.Set( Href() ); |
|
1151 return KErrNone; |
|
1152 } |
|
1153 return CSvgElementImpl::GetAttributeDes( aNameId, aValue ); |
|
1154 |
|
1155 } |
|
1156 |
|
1157 // MSvgImageDecodingRequester method |
|
1158 TInt CSvgImageElementImpl::StartImageDecoding( const TDesC8& aImageData, |
|
1159 TBool aSyncLoading ) |
|
1160 { |
|
1161 if ( iBitmap != NULL ) |
|
1162 { |
|
1163 |
|
1164 if( iIsSvgFile ) |
|
1165 { |
|
1166 // SVG files are decoded by engine and do not follow the ImageDecoder Path |
|
1167 PrepareImageFromSvgFile(aImageData); |
|
1168 return KErrNone; |
|
1169 } |
|
1170 if( iImageDecodingDone ) |
|
1171 { |
|
1172 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
1173 if(document) |
|
1174 { |
|
1175 TInt incCnt = document->GetImageElementsCount() + 1; |
|
1176 document->SetImageElementsCount(incCnt); |
|
1177 } |
|
1178 |
|
1179 } |
|
1180 else |
|
1181 { |
|
1182 iImageDecodingDone = ETrue; |
|
1183 } |
|
1184 // Check if the iImageLoader already exists for the ImageElement |
|
1185 TInt err = KErrNone; |
|
1186 |
|
1187 if( iImageLoader == NULL ) |
|
1188 { |
|
1189 TRAP(err, iImageLoader = CSvgImageLoaderUtil::NewL( this, |
|
1190 aImageData, |
|
1191 aSyncLoading )); // EFalse means Asynchronous decoding |
|
1192 } |
|
1193 else |
|
1194 { |
|
1195 // Cancel the currently active request if the request is pending. |
|
1196 if( iImageLoader) |
|
1197 { |
|
1198 delete iImageLoader; |
|
1199 iImageLoader = NULL; |
|
1200 } |
|
1201 |
|
1202 TRAP(err, iImageLoader = CSvgImageLoaderUtil::NewL( this, |
|
1203 aImageData, |
|
1204 aSyncLoading )); // EFalse means Asynchronous decoding |
|
1205 } |
|
1206 |
|
1207 if ( err != KErrNone || !iImageLoader ) |
|
1208 { |
|
1209 #ifdef _DEBUG |
|
1210 RDebug::Printf("CSvgImageElementImpl::StartImageDecoding failed"); |
|
1211 #endif |
|
1212 ImageLoadingCompleted(err); |
|
1213 return err; |
|
1214 } |
|
1215 |
|
1216 TFrameInfo lFrameInfo( iImageLoader->GetFrameInfo() ); |
|
1217 TBool lHasAlpha = (lFrameInfo.iFlags & TFrameInfo::ETransparencyPossible) != 0; |
|
1218 |
|
1219 if( lHasAlpha ) |
|
1220 { |
|
1221 if( iMask ) |
|
1222 { |
|
1223 delete iMask; |
|
1224 iMask = NULL; |
|
1225 } |
|
1226 |
|
1227 iMask = new (ELeave) CFbsBitmap(); |
|
1228 } |
|
1229 |
|
1230 TRAPD(err2, iImageLoader->RequestForImageL( *iBitmap, *iMask, lHasAlpha, lFrameInfo )); |
|
1231 if ( err2 != KErrNone ) |
|
1232 { |
|
1233 #ifdef _DEBUG |
|
1234 RDebug::Printf("CSvgImageElementImpl::StartImageDecoding RequestForImageL() failed"); |
|
1235 #endif |
|
1236 ImageLoadingCompleted(err2); |
|
1237 return err2; |
|
1238 } |
|
1239 } |
|
1240 return KErrNone; |
|
1241 } |
|
1242 |
|
1243 |
|
1244 TInt CSvgImageElementImpl::StartImageDecoding( RFile& aImageFile, |
|
1245 CFbsBitmap* aBitmap, |
|
1246 TBool aSyncLoading ) |
|
1247 { |
|
1248 if ( iBitmap ) |
|
1249 { |
|
1250 // Destroy the existing bitmap |
|
1251 delete iBitmap; |
|
1252 } |
|
1253 // Take ownership of the bitmap |
|
1254 iBitmap = aBitmap; |
|
1255 |
|
1256 if ( iBitmap != NULL ) |
|
1257 { |
|
1258 if( iIsSvgFile ) |
|
1259 { |
|
1260 |
|
1261 TInt length; |
|
1262 aImageFile.Size(length); |
|
1263 |
|
1264 HBufC8 *aImageData = HBufC8::NewL( length ); |
|
1265 TPtr8 des = aImageData->Des(); |
|
1266 |
|
1267 TInt readError = aImageFile.Read( des ); |
|
1268 if ( readError != KErrNone ) |
|
1269 { |
|
1270 delete aImageData; |
|
1271 return KErrGeneral; |
|
1272 } |
|
1273 else |
|
1274 { |
|
1275 // SVG files are decoded by engine and do not follow the ImageDecoder Path |
|
1276 PrepareImageFromSvgFile(des); |
|
1277 return KErrNone; |
|
1278 } |
|
1279 } |
|
1280 if( iImageDecodingDone ) |
|
1281 { |
|
1282 CSvgDocumentImpl* document = (CSvgDocumentImpl*)OwnerDocument(); |
|
1283 if(document) |
|
1284 { |
|
1285 TInt incCnt = document->GetImageElementsCount() + 1; |
|
1286 document->SetImageElementsCount(incCnt); |
|
1287 } |
|
1288 |
|
1289 } |
|
1290 else |
|
1291 { |
|
1292 iImageDecodingDone = ETrue; |
|
1293 } |
|
1294 |
|
1295 TInt err = KErrNone; |
|
1296 // Check if the iImageLoader already exists for the ImageElement |
|
1297 if( iImageLoader == NULL ) |
|
1298 { |
|
1299 TRAP( err, iImageLoader = CSvgImageLoaderUtil::NewL( this, |
|
1300 aImageFile, |
|
1301 aSyncLoading )); // EFalse means Asynchronous decoding |
|
1302 } |
|
1303 else |
|
1304 { |
|
1305 // Cancel the currently active request if the request is pending. |
|
1306 if( iImageLoader) |
|
1307 { |
|
1308 delete iImageLoader; |
|
1309 iImageLoader = NULL; |
|
1310 } |
|
1311 |
|
1312 TRAP(err, iImageLoader = CSvgImageLoaderUtil::NewL( this, |
|
1313 aImageFile, |
|
1314 aSyncLoading )); // EFalse means Asynchronous decoding |
|
1315 } |
|
1316 |
|
1317 if ( err != KErrNone || !iImageLoader ) |
|
1318 { |
|
1319 #ifdef _DEBUG |
|
1320 RDebug::Printf("CSvgImageElementImpl::StartImageDecoding failed"); |
|
1321 #endif |
|
1322 ImageLoadingCompleted(err); |
|
1323 return err; |
|
1324 } |
|
1325 // Get the Frame info and based on it create the iMask if required. |
|
1326 TFrameInfo lFrameInfo( iImageLoader->GetFrameInfo() ); |
|
1327 TBool lHasAlpha = (lFrameInfo.iFlags & TFrameInfo::ETransparencyPossible) != 0; |
|
1328 |
|
1329 if( lHasAlpha ) |
|
1330 { |
|
1331 if( iMask ) |
|
1332 { |
|
1333 delete iMask; |
|
1334 iMask = NULL; |
|
1335 } |
|
1336 |
|
1337 iMask = new (ELeave) CFbsBitmap(); |
|
1338 } |
|
1339 |
|
1340 |
|
1341 TRAPD(err2, iImageLoader->RequestForImageL( *iBitmap, *iMask, lHasAlpha, lFrameInfo )); |
|
1342 |
|
1343 if ( err2 != KErrNone ) |
|
1344 { |
|
1345 #ifdef _DEBUG |
|
1346 RDebug::Printf("CSvgImageElementImpl::StartImageDecoding RequestForImageL() failed"); |
|
1347 #endif |
|
1348 ImageLoadingCompleted(err); |
|
1349 return err2; |
|
1350 } |
|
1351 } |
|
1352 return KErrNone; |
|
1353 } |
|
1354 // --------------------------------------------------------------------------- |
|
1355 // CSvgImageElementImpl::SetReferenceElement |
|
1356 // Informs the image element that it is referring to a particular image |
|
1357 // element. |
|
1358 // --------------------------------------------------------------------------- |
|
1359 void CSvgImageElementImpl::SetReferenceElement( CSvgImageElementImpl* |
|
1360 aImageElement ) |
|
1361 { |
|
1362 iRefElement = aImageElement; |
|
1363 } |
|
1364 |
|
1365 // --------------------------------------------------------------------------- |
|
1366 // CSvgImageElementImpl::GetReferenceElement |
|
1367 // Get Function for reference element |
|
1368 // --------------------------------------------------------------------------- |
|
1369 CSvgImageElementImpl* CSvgImageElementImpl::ReferenceElement() |
|
1370 { |
|
1371 return iRefElement; |
|
1372 } |
|
1373 |
|
1374 // --------------------------------------------------------------------------- |
|
1375 // CSvgImageElementImpl::AddImageElementListener |
|
1376 // Adds an image element listener - used in the case of cloning of image |
|
1377 // element. |
|
1378 // --------------------------------------------------------------------------- |
|
1379 void CSvgImageElementImpl::AddImageElementListener( |
|
1380 MSvgImageElementListener* aListener ) |
|
1381 { |
|
1382 if ( iImageElementListeners.Find( aListener ) != KErrNotFound ) |
|
1383 { |
|
1384 return; |
|
1385 } |
|
1386 if ( iImageElementListeners.Append( aListener ) != KErrNone ) |
|
1387 { |
|
1388 #ifdef _DEBUG |
|
1389 RDebug::Printf("iImageElementListeners.Append failed"); |
|
1390 #endif |
|
1391 } |
|
1392 } |
|
1393 |
|
1394 // --------------------------------------------------------------------------- |
|
1395 // CSvgImageElementImpl::RemoveImageElementListener |
|
1396 // Removes an image element listener - used in the case of cloning of image |
|
1397 // element. |
|
1398 // --------------------------------------------------------------------------- |
|
1399 void CSvgImageElementImpl::RemoveImageElementListener( |
|
1400 MSvgImageElementListener* aListener ) |
|
1401 { |
|
1402 TInt index = iImageElementListeners.Find( aListener ); |
|
1403 if ( index == KErrNotFound ) |
|
1404 { |
|
1405 return; |
|
1406 } |
|
1407 iImageElementListeners.Remove( index ); |
|
1408 } |
|
1409 |
|
1410 // --------------------------------------------------------------------------- |
|
1411 // CSvgImageElementImpl::BitmapDecoded |
|
1412 // This is the callback implementation for updating the decoded image |
|
1413 // and mask from referenced image element. |
|
1414 // --------------------------------------------------------------------------- |
|
1415 void CSvgImageElementImpl::BitmapDecoded( CFbsBitmap* aBitmap, |
|
1416 CFbsBitmap* aMask ) |
|
1417 { |
|
1418 // Save the pointers to the decoded bitmap in this element, |
|
1419 // this can be used in subsequent draw. |
|
1420 // Note: Both the bitmap and mask are not owned by this element. |
|
1421 // It is owned by the reference element. |
|
1422 iBitmap = aBitmap; |
|
1423 iMask = aMask; |
|
1424 |
|
1425 iBitmapReady = iBitmap != NULL; |
|
1426 } |
|
1427 |
|
1428 // --------------------------------------------------------------------------- |
|
1429 // CSvgImageElementImpl::ResetReference |
|
1430 // This is the callback implementation for resetting reference element |
|
1431 // pointer |
|
1432 // --------------------------------------------------------------------------- |
|
1433 void CSvgImageElementImpl::ResetReference() |
|
1434 { |
|
1435 // Stop referring to the reference element. |
|
1436 iRefElement = NULL; |
|
1437 } |
|
1438 |
|
1439 // --------------------------------------------------------------------------- |
|
1440 // CSvgImageElementImpl::NotifyImageDecoded |
|
1441 // Notify listeners that image has been decoded. |
|
1442 // --------------------------------------------------------------------------- |
|
1443 void CSvgImageElementImpl::NotifyImageDecoded() |
|
1444 { |
|
1445 TInt imageEleListenersCnt = iImageElementListeners.Count(); |
|
1446 for ( TInt i = 0; i < imageEleListenersCnt; i++ ) |
|
1447 { |
|
1448 iImageElementListeners[i]->BitmapDecoded( iBitmap, iMask ); |
|
1449 } |
|
1450 } |
|
1451 |
|
1452 // --------------------------------------------------------------------------- |
|
1453 // CSvgImageElementImpl::ResetReference |
|
1454 // Notify listeners to reset their reference element pointers |
|
1455 // --------------------------------------------------------------------------- |
|
1456 void CSvgImageElementImpl::NotifyResetReference() |
|
1457 { |
|
1458 TInt imageEleListenersCnt = iImageElementListeners.Count(); |
|
1459 for ( TInt i = 0; i < imageEleListenersCnt; i++ ) |
|
1460 { |
|
1461 iImageElementListeners[i]->ResetReference(); |
|
1462 } |
|
1463 } |
|
1464 |
|
1465 void CSvgImageElementImpl::Print( TBool aIsEncodeOn ) |
|
1466 { |
|
1467 if (!aIsEncodeOn) |
|
1468 { |
|
1469 #ifdef _DEBUG |
|
1470 RDebug::Printf("<image x=\"%d\" y=\"%d\" width=\"%d\" height=\"%d\" xlink:href=\"hmm\" \\>", (int)X(), (int)Y(), (int)Width(), (int)Height()/*, Href()*/); |
|
1471 #endif |
|
1472 } |
|
1473 } |
|
1474 |
|
1475 CFbsBitmap* CSvgImageElementImpl::GetBitmap() |
|
1476 { |
|
1477 return iBitmap; |
|
1478 } |
|
1479 |
|
1480 void CSvgImageElementImpl::SetBitmap( CFbsBitmap* aBitmap ) |
|
1481 { |
|
1482 if ( iBitmap ) |
|
1483 { |
|
1484 delete iBitmap; |
|
1485 iBitmap = NULL; |
|
1486 } |
|
1487 iBitmap = aBitmap; |
|
1488 } |
|
1489 |
|
1490 void CSvgImageElementImpl::AssignImageData( HBufC8* aData ) |
|
1491 { |
|
1492 if(iImageData) |
|
1493 { |
|
1494 delete iImageData; |
|
1495 iImageData = NULL; |
|
1496 } |
|
1497 iImageData = aData; |
|
1498 } |
|
1499 |
|
1500 TInt CSvgImageElementImpl::CheckRequiredAttributes() |
|
1501 { |
|
1502 if ( !( iImgRect.iHeight >= TFloatFixPt(0) ) ) |
|
1503 { |
|
1504 //need a height |
|
1505 iReqAttrFlag = KAtrHeight; |
|
1506 return iReqAttrFlag; |
|
1507 } |
|
1508 |
|
1509 if ( !( iImgRect.iWidth >= TFloatFixPt(0)) ) |
|
1510 { |
|
1511 iReqAttrFlag = KAtrWidth; |
|
1512 return iReqAttrFlag; |
|
1513 } |
|
1514 |
|
1515 |
|
1516 if ( !iIsUriSet ) |
|
1517 { |
|
1518 iReqAttrFlag = KAtrXlinkhref; |
|
1519 return iReqAttrFlag; |
|
1520 } |
|
1521 |
|
1522 iReqAttrFlag = 0; |
|
1523 |
|
1524 // check if the diplay property is turned off programatically |
|
1525 if( WasTurnedOff() ) |
|
1526 { |
|
1527 _LIT(KInline, "inline"); |
|
1528 // turn it on. this means all the required attributes Are present and |
|
1529 // hence we can render it. |
|
1530 CSvgElementImpl::SetPropertyL(KCSS_ATTR_DISPLAY, KInline); |
|
1531 SetTurnOff( EFalse ); |
|
1532 } |
|
1533 |
|
1534 return 0; |
|
1535 } |
|
1536 // --------------------------------------------------------------------------- |
|
1537 // CSvgImageElementImpl::IsSynchronousLoading |
|
1538 // Returns whether the image decoding was synchronous or not |
|
1539 // --------------------------------------------------------------------------- |
|
1540 TBool CSvgImageElementImpl::CSvgImageLoaderUtil::IsSynchronousLoading() |
|
1541 { |
|
1542 return iIsSyncLoading; |
|
1543 } |