1 /* |
|
2 * Copyright (c) 2007 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: Implementation of the IAlfAttributeOwner interface |
|
15 * for AlfElement. |
|
16 * |
|
17 */ |
|
18 |
|
19 |
|
20 #include <alf/alfexceptions.h> |
|
21 #include "alf/alfattribute.h" |
|
22 #include "alf/alfattributecontainer.h" |
|
23 #include "alf/ialfvisualtemplate.h" |
|
24 #include <alf/alfwidgetcontrol.h> |
|
25 #include "alf/ialfattributesetter.h" |
|
26 #include "alf/alfcommonvisualattributesetter.h" |
|
27 #include "alf/alfelement.h" |
|
28 #include <osn/ustring.h> |
|
29 #include "alf/attrproperty.h" |
|
30 #include <alf/alfwidgetcommand.h> |
|
31 |
|
32 |
|
33 #include "alfelementattributeownerimpl.h" |
|
34 |
|
35 using namespace duiuimodel; |
|
36 |
|
37 namespace Alf |
|
38 { |
|
39 |
|
40 // --------------------------------------------------------------------------- |
|
41 // Constructor. |
|
42 // --------------------------------------------------------------------------- |
|
43 // |
|
44 AlfElementAttributeOwnerImpl::AlfElementAttributeOwnerImpl( |
|
45 AlfElement& aElement, CAlfWidgetControl& aControl) : |
|
46 mElement(aElement), mControl(aControl) |
|
47 { |
|
48 mAttributeList.setAutoDelete(true); |
|
49 } |
|
50 |
|
51 // --------------------------------------------------------------------------- |
|
52 // Destructor. |
|
53 // --------------------------------------------------------------------------- |
|
54 // |
|
55 AlfElementAttributeOwnerImpl::~AlfElementAttributeOwnerImpl() |
|
56 { |
|
57 mAttributeList.clear(); |
|
58 } |
|
59 |
|
60 // --------------------------------------------------------------------------- |
|
61 // From class IAlfInterfaceBase. |
|
62 // Getter for interfaces provided by the element. |
|
63 // --------------------------------------------------------------------------- |
|
64 // |
|
65 IAlfInterfaceBase* AlfElementAttributeOwnerImpl::makeInterface( |
|
66 const IfId& aType) |
|
67 { |
|
68 UString param(aType.mImplementationId); |
|
69 if (param == IAlfAttributeOwner::type().mImplementationId) |
|
70 { |
|
71 return static_cast<IAlfAttributeOwner*>(this); |
|
72 } |
|
73 return 0; |
|
74 } |
|
75 |
|
76 // --------------------------------------------------------------------------- |
|
77 // Get the number of available attributes. |
|
78 // From class IAlfAttributeOwner. |
|
79 // --------------------------------------------------------------------------- |
|
80 // |
|
81 int AlfElementAttributeOwnerImpl::attributeCount() const |
|
82 { |
|
83 return mAttributeList.count(); |
|
84 } |
|
85 |
|
86 // --------------------------------------------------------------------------- |
|
87 // Gets the attribute with the given name. |
|
88 // From class IAlfAttributeOwner. |
|
89 // --------------------------------------------------------------------------- |
|
90 // |
|
91 const AlfAttribute* AlfElementAttributeOwnerImpl::getAttribute( |
|
92 const UString& aAttribName) const |
|
93 { |
|
94 AlfAttribute* attribute = 0; |
|
95 for (int i = 0; i < mAttributeList.count(); i++) |
|
96 { |
|
97 if (!strcmp(aAttribName.getUtf8(), mAttributeList[i]->name())) |
|
98 { |
|
99 attribute = mAttributeList[i]; |
|
100 break; |
|
101 } |
|
102 } |
|
103 return attribute; |
|
104 } |
|
105 |
|
106 // --------------------------------------------------------------------------- |
|
107 // Set a value of an attribute. |
|
108 // From class IAlfAttributeOwner. |
|
109 // --------------------------------------------------------------------------- |
|
110 // |
|
111 bool AlfElementAttributeOwnerImpl::setAttribute(const AlfAttribute& aAttribute) |
|
112 { |
|
113 // The attribute must have at least one value set. |
|
114 if (!aAttribute.getTargetValueCount()) |
|
115 { |
|
116 ALF_THROW( |
|
117 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
|
118 } |
|
119 |
|
120 if (!canHandleAttribute(aAttribute.name())) |
|
121 { |
|
122 return false; |
|
123 } |
|
124 |
|
125 // Check whether the attribute exists already. |
|
126 int i = 0; |
|
127 for (i = 0; i < mAttributeList.count() ; i++) |
|
128 { |
|
129 if (!strcmp(aAttribute.name(), mAttributeList[i]->name())) |
|
130 { |
|
131 // Attribute exists already, modify the contents. |
|
132 *mAttributeList[i] = aAttribute; |
|
133 handleAttribute(*mAttributeList[i]); |
|
134 return true; |
|
135 } |
|
136 } |
|
137 |
|
138 // Attribute with the given name does not exist, |
|
139 // clone the given attribute and insert it in the list. |
|
140 mAttributeList.resize(mAttributeList.count() + 1); |
|
141 // Insert cannot fail because already resized. |
|
142 mAttributeList.insert(mAttributeList.count(), |
|
143 const_cast<AlfAttribute&>(aAttribute).clone()); |
|
144 |
|
145 handleAttribute(*mAttributeList[i]); |
|
146 return true; |
|
147 } |
|
148 |
|
149 // --------------------------------------------------------------------------- |
|
150 // Set a value of an attribute. |
|
151 // From class IAlfAttributeOwner. |
|
152 // --------------------------------------------------------------------------- |
|
153 // |
|
154 bool AlfElementAttributeOwnerImpl::setAttribute( |
|
155 const UString& aAttribName, AlfAttributeValueType* aValue) |
|
156 { |
|
157 if (!aValue) |
|
158 { |
|
159 ALF_THROW( |
|
160 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
|
161 } |
|
162 |
|
163 // Create a new attribute. |
|
164 auto_ptr<AlfAttribute> attribute( |
|
165 new (EMM) AlfAttribute(aAttribName.getUtf8(), AlfAttribute::EStatic)); |
|
166 attribute->addTargetValue(aValue); |
|
167 |
|
168 return setAttribute(*attribute.get()); |
|
169 } |
|
170 // --------------------------------------------------------------------------- |
|
171 // Set a value of an attribute. |
|
172 // From class IAlfAttributeOwner. |
|
173 // --------------------------------------------------------------------------- |
|
174 // |
|
175 bool AlfElementAttributeOwnerImpl::setAttribute( const UString& aTargetId , |
|
176 AlfAttribute& aAttribute ) |
|
177 { |
|
178 bool ret(false); |
|
179 |
|
180 // The attribute must have at least one value set. |
|
181 if (!aAttribute.getTargetValueCount()) |
|
182 { |
|
183 ALF_THROW( |
|
184 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
|
185 } |
|
186 |
|
187 //check targetId |
|
188 if (!aTargetId.isEmpty() |
|
189 && !aTargetId.compare(mElement.name()) ) |
|
190 { |
|
191 ret = setAttribute(aAttribute); |
|
192 } |
|
193 |
|
194 return ret; |
|
195 } |
|
196 |
|
197 |
|
198 // --------------------------------------------------------------------------- |
|
199 // Set a value of an attribute. |
|
200 // From class IAlfAttributeOwner. |
|
201 // --------------------------------------------------------------------------- |
|
202 // |
|
203 bool AlfElementAttributeOwnerImpl::setAttribute( const UString& aTargetId, |
|
204 const UString& aAttribName, |
|
205 AlfAttributeValueType* aValue ) |
|
206 { |
|
207 bool ret(false); |
|
208 |
|
209 if (!aValue) |
|
210 { |
|
211 ALF_THROW( |
|
212 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
|
213 } |
|
214 |
|
215 if (!aTargetId.isEmpty()) |
|
216 { |
|
217 // Create a new static attribute. |
|
218 auto_ptr<AlfAttribute> attribute( |
|
219 new (EMM) AlfAttribute(aAttribName.getUtf8(), AlfAttribute::EStatic)); |
|
220 attribute->addTargetValue(aValue); |
|
221 |
|
222 ret = setAttribute(*attribute.get()); |
|
223 |
|
224 } |
|
225 |
|
226 return ret; |
|
227 |
|
228 } |
|
229 |
|
230 // --------------------------------------------------------------------------- |
|
231 // Gets the attribute with the given name. |
|
232 // From class IAlfAttributeOwner. |
|
233 // --------------------------------------------------------------------------- |
|
234 // |
|
235 const AlfAttribute* AlfElementAttributeOwnerImpl::getAttribute( const UString& aTargetId , |
|
236 const UString& aAttribName ) const |
|
237 { |
|
238 const AlfAttribute* attr(0); |
|
239 |
|
240 //check targetId |
|
241 if (!aTargetId.isEmpty() |
|
242 && !aTargetId.compare(mElement.name())) |
|
243 { |
|
244 attr = getAttribute(aAttribName); |
|
245 } |
|
246 |
|
247 return attr; |
|
248 } |
|
249 |
|
250 // --------------------------------------------------------------------------- |
|
251 // Sets the attributes from container |
|
252 // From class IAlfAttributeOwner. |
|
253 // --------------------------------------------------------------------------- |
|
254 // |
|
255 bool AlfElementAttributeOwnerImpl::setAttributeContainer( AlfAttributeContainer& aAttributeContainer ) |
|
256 { |
|
257 |
|
258 const int attributeCount = aAttributeContainer.attributeCount(); |
|
259 int numAttributesHandled = 0; |
|
260 |
|
261 for (int i = 0; i < attributeCount ; i++) |
|
262 { |
|
263 AlfAttribute& attribute = aAttributeContainer.getAttribute(i); |
|
264 if (!strcmp(attribute.name(), duiuimodel::tactileattributes::KEventInput)) |
|
265 { |
|
266 |
|
267 // Look for feedback type attribute. |
|
268 try |
|
269 { |
|
270 AlfAttribute& feedBackType = |
|
271 aAttributeContainer.getAttributeByName(duiuimodel::tactileattributes::KFeedbackType); |
|
272 handleTactileAttribute(attribute,feedBackType); |
|
273 numAttributesHandled += 2; |
|
274 } |
|
275 catch(AlfDataException& exception) |
|
276 { |
|
277 // attribute not found,so return false |
|
278 return false; |
|
279 } |
|
280 } |
|
281 |
|
282 else if(setAttribute(attribute)) |
|
283 { |
|
284 numAttributesHandled++; |
|
285 } |
|
286 } |
|
287 |
|
288 |
|
289 return (numAttributesHandled == attributeCount); |
|
290 } |
|
291 |
|
292 // --------------------------------------------------------------------------- |
|
293 // Handles the Tactile Attribute. |
|
294 // --------------------------------------------------------------------------- |
|
295 // |
|
296 void AlfElementAttributeOwnerImpl::handleTactileAttribute( |
|
297 AlfAttribute& aAttributeEvent,AlfAttribute& aAttributeFeedback) |
|
298 { |
|
299 IAlfVisualTemplate* visualTemplate = mElement.getVisualTemplate(); |
|
300 |
|
301 // Find the root layout |
|
302 CAlfVisual* main = mElement.findVisual(0);//needs to be changed because in some cases id may be |
|
303 // set by the user |
|
304 |
|
305 if(visualTemplate ) |
|
306 { |
|
307 AlfAttribute* attrEvent = NULL; |
|
308 AlfAttribute* attrFeedback = NULL; |
|
309 |
|
310 int setterCount = visualTemplate->numAttributeSetters(); |
|
311 bool found(false); |
|
312 for (int j = 0; j < setterCount ; j++) |
|
313 { |
|
314 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
|
315 try |
|
316 { |
|
317 //find the attribute in each container until it is found |
|
318 attrEvent = &(container.getAttributeByName(duiuimodel::tactileattributes::KEventInput)); |
|
319 attrFeedback = &(container.getAttributeByName(duiuimodel::tactileattributes::KFeedbackType)); |
|
320 } |
|
321 catch(AlfDataException& exception) |
|
322 { |
|
323 // attribute not found,so continue |
|
324 continue; |
|
325 } |
|
326 //attribute found in one of the existing containers of the visual template, update it |
|
327 *attrEvent = aAttributeEvent; |
|
328 *attrFeedback = aAttributeFeedback; |
|
329 found = true; |
|
330 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
|
331 if(main) |
|
332 setter.setAttributeValue(*main,&container,0); |
|
333 break; |
|
334 } |
|
335 // attribute not found in any of the containers, so create one attribute container and one |
|
336 // attribute setter and add both to the visual template |
|
337 if (!found) |
|
338 { |
|
339 auto_ptr<AlfAttributeContainer> container( |
|
340 new (EMM) AlfAttributeContainer()); |
|
341 |
|
342 auto_ptr<AlfCommonVisualAttributeSetter> setter( |
|
343 new (EMM) AlfCommonVisualAttributeSetter()); |
|
344 |
|
345 AlfAttribute* attribe =aAttributeEvent.clone(); |
|
346 AlfAttribute* attribf =aAttributeFeedback.clone(); |
|
347 |
|
348 container.get()->addAttribute(attribe); |
|
349 container.get()->addAttribute(attribf); |
|
350 if(main) |
|
351 setter.get()->setAttributeValue(*main, container.get(), 0); |
|
352 |
|
353 visualTemplate->addAttributeSetter(setter.release(), |
|
354 container.release()); |
|
355 } |
|
356 } |
|
357 } |
|
358 |
|
359 // --------------------------------------------------------------------------- |
|
360 // Sets the attributes from container using targetId |
|
361 // From class IAlfAttributeOwner. |
|
362 // --------------------------------------------------------------------------- |
|
363 // |
|
364 bool AlfElementAttributeOwnerImpl::setAttributeContainer( const UString& aTargetId , |
|
365 AlfAttributeContainer& aAttributeContainer ) |
|
366 { |
|
367 |
|
368 |
|
369 const int attributeCount = aAttributeContainer.attributeCount(); |
|
370 int numAttributesHandled = 0; |
|
371 |
|
372 for (int i = 0; i < attributeCount ; i++) |
|
373 { |
|
374 AlfAttribute& attribute = aAttributeContainer.getAttribute(i); |
|
375 if (!strcmp(attribute.name(), duiuimodel::tactileattributes::KEventInput)) |
|
376 { |
|
377 // Look for feedback type attribute. |
|
378 |
|
379 // Look for feedback type attribute. |
|
380 try |
|
381 { |
|
382 AlfAttribute& feedBackType = |
|
383 aAttributeContainer.getAttributeByName(duiuimodel::tactileattributes::KFeedbackType); |
|
384 handleTactileAttribute(attribute,feedBackType); |
|
385 numAttributesHandled += 2; |
|
386 } |
|
387 catch(AlfDataException& exception) |
|
388 { |
|
389 // attribute not found,so return false |
|
390 return false; |
|
391 } |
|
392 } |
|
393 else if(setAttribute(aTargetId,attribute)) |
|
394 { |
|
395 numAttributesHandled++; |
|
396 } |
|
397 } |
|
398 |
|
399 return (numAttributesHandled == attributeCount); |
|
400 |
|
401 } |
|
402 |
|
403 // --------------------------------------------------------------------------- |
|
404 // Handles the attribute, sets proper values. |
|
405 // --------------------------------------------------------------------------- |
|
406 // |
|
407 void AlfElementAttributeOwnerImpl::handleAttribute(AlfAttribute& aAttribute) |
|
408 { |
|
409 const char* attrName = aAttribute.name(); |
|
410 |
|
411 if (!strcmp(attrName, commonvisualattributes::KOpacity)) |
|
412 { |
|
413 handleOpacityAttribute(aAttribute); |
|
414 } |
|
415 else if(!strcmp(attrName, layoutattributes::KPositionX) || |
|
416 !strcmp(attrName, layoutattributes::KPositionY)) |
|
417 { |
|
418 handlePositionAttribute(aAttribute); |
|
419 } |
|
420 else if(!strcmp(attrName, layoutattributes::KWidth) || |
|
421 !strcmp(attrName, layoutattributes::KHeight)) |
|
422 { |
|
423 handleSizeAttribute(aAttribute); |
|
424 } |
|
425 else if(!strcmp(attrName, layoutattributes::KMaxWidth) || |
|
426 !strcmp(attrName, layoutattributes::KMaxHeight)) |
|
427 { |
|
428 handleMaxSizeAttribute(aAttribute); |
|
429 } |
|
430 else if(!strcmp(attrName, layoutattributes::KMinWidth) || |
|
431 !strcmp(attrName, layoutattributes::KMinHeight)) |
|
432 { |
|
433 handleMinSizeAttribute(aAttribute); |
|
434 } |
|
435 } |
|
436 |
|
437 // --------------------------------------------------------------------------- |
|
438 // Can attribute be handled with this widget. |
|
439 // --------------------------------------------------------------------------- |
|
440 // |
|
441 bool AlfElementAttributeOwnerImpl::canHandleAttribute( |
|
442 const char* aAttributeName) |
|
443 { |
|
444 bool canHandle(false); |
|
445 if (!strcmp(aAttributeName, commonvisualattributes::KOpacity) || |
|
446 !strcmp(aAttributeName, layoutattributes::KPositionX) || |
|
447 !strcmp(aAttributeName, layoutattributes::KPositionY) || |
|
448 !strcmp(aAttributeName, layoutattributes::KWidth) || |
|
449 !strcmp(aAttributeName, layoutattributes::KHeight) || |
|
450 !strcmp(aAttributeName, layoutattributes::KMaxWidth) || |
|
451 !strcmp(aAttributeName, layoutattributes::KMaxHeight) || |
|
452 !strcmp(aAttributeName, layoutattributes::KMinWidth) || |
|
453 !strcmp(aAttributeName, layoutattributes::KMinHeight)) |
|
454 { |
|
455 canHandle = true; |
|
456 } |
|
457 return canHandle; |
|
458 } |
|
459 |
|
460 // --------------------------------------------------------------------------- |
|
461 // Handles the Opacity Attribute. |
|
462 // --------------------------------------------------------------------------- |
|
463 // |
|
464 void AlfElementAttributeOwnerImpl::handleOpacityAttribute( |
|
465 AlfAttribute& aAttribute) |
|
466 { |
|
467 const char* attrName = aAttribute.name(); |
|
468 |
|
469 IAlfVisualTemplate* visualTemplate = mElement.getVisualTemplate(); |
|
470 |
|
471 // Find the root layout |
|
472 CAlfVisual* main = mElement.findVisual(0); |
|
473 |
|
474 if(visualTemplate && main) |
|
475 { |
|
476 int setterCount = visualTemplate->numAttributeSetters(); |
|
477 bool found(false); |
|
478 for (int j = 0; j < setterCount && main; j++) |
|
479 { |
|
480 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
|
481 AlfAttribute* attr = NULL; |
|
482 try |
|
483 { |
|
484 //find the attribute in each container until it is found |
|
485 attr = &(container.getAttributeByName(attrName)); |
|
486 } |
|
487 catch(AlfDataException& exception) |
|
488 { |
|
489 // attribute not found,so continue |
|
490 continue; |
|
491 } |
|
492 //attribute found in one of the existing containers of the visual template, update it |
|
493 *attr = aAttribute; |
|
494 found = true; |
|
495 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
|
496 setter.setAttributeValue(*main,&container,0); |
|
497 break; |
|
498 } |
|
499 // attribute not found in any of the containers, so create one attribute container and one |
|
500 // attribute setter and add both to the visual template |
|
501 if (!found) |
|
502 { |
|
503 auto_ptr<AlfAttributeContainer> container( |
|
504 new (EMM) AlfAttributeContainer()); |
|
505 auto_ptr<AlfCommonVisualAttributeSetter> setter( |
|
506 new (EMM) AlfCommonVisualAttributeSetter()); |
|
507 AlfAttribute* attribute =aAttribute.clone(); |
|
508 container.get()->addAttribute(attribute); |
|
509 |
|
510 setter.get()->setAttributeValue(*main, container.get(), 0); |
|
511 visualTemplate->addAttributeSetter(setter.release(), |
|
512 container.release()); |
|
513 } |
|
514 } |
|
515 } |
|
516 |
|
517 // --------------------------------------------------------------------------- |
|
518 // Handles the Position Attribute |
|
519 // --------------------------------------------------------------------------- |
|
520 // |
|
521 void AlfElementAttributeOwnerImpl::handlePositionAttribute(AlfAttribute& aAttribute) |
|
522 { |
|
523 const char* attrName = aAttribute.name(); |
|
524 const char* attrPair = layoutattributes::KPositionX; |
|
525 bool isPositionXAttr = false; |
|
526 if(!strcmp(attrName, layoutattributes::KPositionX)) |
|
527 { |
|
528 attrPair = layoutattributes::KPositionY; |
|
529 isPositionXAttr = true; |
|
530 } |
|
531 if (handleAttributePairs(aAttribute, attrPair)) |
|
532 { |
|
533 CAlfVisual* main = mElement.findVisual(0); |
|
534 if (main) |
|
535 { |
|
536 bool needsRelayouting = false; |
|
537 TAlfRealPoint pos(main->Pos().Target()); |
|
538 |
|
539 //for optimizing relayouting, which is expensive. Check, whether we need to do it. |
|
540 if (isPositionXAttr) |
|
541 { |
|
542 //check against visual x position |
|
543 needsRelayouting = (pos.iX != aAttribute.realValue()); |
|
544 } |
|
545 else |
|
546 { |
|
547 needsRelayouting = (pos.iY != aAttribute.realValue()); |
|
548 } |
|
549 |
|
550 if (needsRelayouting) |
|
551 { |
|
552 main->UpdateChildrenLayout(); |
|
553 mControl.updateParentLayout(); |
|
554 } |
|
555 } |
|
556 } |
|
557 } |
|
558 |
|
559 // --------------------------------------------------------------------------- |
|
560 // Handles the Size Attribute. |
|
561 // --------------------------------------------------------------------------- |
|
562 // |
|
563 void AlfElementAttributeOwnerImpl::handleSizeAttribute(AlfAttribute& aAttribute) |
|
564 { |
|
565 const char* attrName = aAttribute.name(); |
|
566 const char* attrPair = layoutattributes::KWidth; |
|
567 bool isWidthAttr = false; |
|
568 |
|
569 if(!strcmp(attrName, layoutattributes::KWidth)) |
|
570 { |
|
571 attrPair = layoutattributes::KHeight; |
|
572 isWidthAttr = true; |
|
573 } |
|
574 if (handleAttributePairs(aAttribute, attrPair)) |
|
575 { |
|
576 CAlfVisual* main = mElement.findVisual(0); |
|
577 if (main) |
|
578 { |
|
579 bool needsRelayouting = false; |
|
580 TAlfRealPoint size(main->Size().Target()); |
|
581 |
|
582 //for optimizing relayouting, which is expensive. Check, whether we need to do it. |
|
583 if (isWidthAttr) |
|
584 { |
|
585 needsRelayouting = (size.iX != aAttribute.realValue()); |
|
586 } |
|
587 else |
|
588 { |
|
589 needsRelayouting = (size.iY != aAttribute.realValue()); |
|
590 } |
|
591 |
|
592 if (needsRelayouting) |
|
593 { |
|
594 main->UpdateChildrenLayout(); |
|
595 mControl.updateParentLayout(); |
|
596 } |
|
597 } |
|
598 } |
|
599 } |
|
600 |
|
601 // --------------------------------------------------------------------------- |
|
602 // Handles the Max Size Attribute. |
|
603 // --------------------------------------------------------------------------- |
|
604 // |
|
605 void AlfElementAttributeOwnerImpl::handleMaxSizeAttribute(AlfAttribute& aAttribute) |
|
606 { |
|
607 const char* attrName = aAttribute.name(); |
|
608 const char* attrPair = layoutattributes::KMaxWidth; |
|
609 if(!strcmp(attrName, layoutattributes::KMaxWidth)) |
|
610 { |
|
611 attrPair = layoutattributes::KMaxHeight; |
|
612 } |
|
613 handleAttributePairs(aAttribute, attrPair); |
|
614 } |
|
615 |
|
616 // --------------------------------------------------------------------------- |
|
617 // Handles the Min Size Attribute. |
|
618 // --------------------------------------------------------------------------- |
|
619 // |
|
620 void AlfElementAttributeOwnerImpl::handleMinSizeAttribute(AlfAttribute& aAttribute) |
|
621 { |
|
622 const char* attrName = aAttribute.name(); |
|
623 const char* attrPair = layoutattributes::KMinWidth; |
|
624 if(!strcmp(attrName, layoutattributes::KMinWidth)) |
|
625 { |
|
626 attrPair = layoutattributes::KMinHeight; |
|
627 } |
|
628 handleAttributePairs(aAttribute, attrPair); |
|
629 } |
|
630 |
|
631 // --------------------------------------------------------------------------- |
|
632 // Handles setting of paired attributes: widget & height, xpos & ypos etc. |
|
633 // --------------------------------------------------------------------------- |
|
634 // |
|
635 bool AlfElementAttributeOwnerImpl::handleAttributePairs(AlfAttribute& aAttribute, |
|
636 const char* aAttributeNamePair) |
|
637 { |
|
638 const char* attrName = aAttribute.name(); |
|
639 bool changed(false); |
|
640 IAlfVisualTemplate* visualTemplate = mElement.getVisualTemplate(); |
|
641 |
|
642 // Find the root layout |
|
643 CAlfVisual* main = mElement.findVisual(0); |
|
644 if(visualTemplate && main) |
|
645 { |
|
646 int setterCount = visualTemplate->numAttributeSetters(); |
|
647 bool found(false); |
|
648 |
|
649 //find the attribute in all the existing containers |
|
650 for (int j = 0; j < setterCount; j++) |
|
651 { |
|
652 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
|
653 AlfAttribute* attri = NULL; |
|
654 try |
|
655 { |
|
656 attri = &(container.getAttributeByName(attrName)); |
|
657 } |
|
658 catch(AlfDataException& exception) |
|
659 { |
|
660 // attribute not found in the container |
|
661 // continue to find in other containers |
|
662 continue; |
|
663 } |
|
664 // attribute found, update it |
|
665 *attri = aAttribute; |
|
666 found = true; |
|
667 |
|
668 //check, that attribute pair exists. |
|
669 try |
|
670 { |
|
671 AlfAttribute& attr = |
|
672 container.getAttributeByName(aAttributeNamePair); |
|
673 } |
|
674 catch(AlfDataException& exception) |
|
675 { |
|
676 //attribute pair not found in the same container, so break |
|
677 break; |
|
678 } |
|
679 |
|
680 // attribute pair found, so call setAttributeValue() |
|
681 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
|
682 setter.setAttributeValue(*main, &container, 0); |
|
683 changed = true; |
|
684 break; |
|
685 } |
|
686 |
|
687 // the attribute not found in any of the existing containers |
|
688 if(!found) |
|
689 { |
|
690 bool foundAttrPair(false); |
|
691 |
|
692 // again try to find the attribute pair |
|
693 // this is for the situation where the attribute already exists |
|
694 for (int j = 0; j < setterCount; j++) |
|
695 { |
|
696 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
|
697 |
|
698 try |
|
699 { |
|
700 AlfAttribute& attr = |
|
701 container.getAttributeByName(aAttributeNamePair); |
|
702 } |
|
703 catch(AlfDataException& exception) |
|
704 { |
|
705 // attribute not found,so continue |
|
706 continue; |
|
707 } |
|
708 // attribute pair found, so add the attribute to the same container |
|
709 // and call setAttributeValue() |
|
710 AlfAttribute* attribute = aAttribute.clone(); |
|
711 container.addAttribute(attribute); |
|
712 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
|
713 setter.setAttributeValue(*main, &container, 0); |
|
714 changed = true; |
|
715 foundAttrPair = true; |
|
716 break; |
|
717 } |
|
718 |
|
719 // counter-part also does not exist, so create a new container and a attribute setter, add |
|
720 // the attribute to the container, and the container and attribute setter to the visual template |
|
721 if(!foundAttrPair) |
|
722 { |
|
723 auto_ptr<AlfAttributeContainer> container( |
|
724 new (EMM) AlfAttributeContainer()); |
|
725 auto_ptr<AlfCommonVisualAttributeSetter> setter( |
|
726 new (EMM) AlfCommonVisualAttributeSetter()); |
|
727 AlfAttribute* attribute = aAttribute.clone(); |
|
728 container.get()->addAttribute(attribute); |
|
729 visualTemplate->addAttributeSetter(setter.get(), |
|
730 container.get()); |
|
731 container.release(); |
|
732 setter.release(); |
|
733 } |
|
734 } |
|
735 } |
|
736 return changed; |
|
737 } |
|
738 |
|
739 } // namespace Alf |
|