|
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: |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 #include <aknlists.h> |
|
20 #include <eikspmod.h> |
|
21 #include <eikclb.h> |
|
22 #include <eikfrlb.h> |
|
23 #include <eikslb.h> |
|
24 #include <AknUtils.h> |
|
25 #include <aknlayoutscalable_avkon.cdl.h> |
|
26 #include <aknlayoutscalable_apps.cdl.h> |
|
27 #include <layoutmetadata.cdl.h> |
|
28 |
|
29 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
30 #include <aknlistboxtfxinternal.h> |
|
31 #include <akntransitionutils.h> |
|
32 #include <aknlistloadertfx.h> |
|
33 #endif |
|
34 |
|
35 #include "mmlistboxmodel.h" |
|
36 #include "mmlistbox.h" |
|
37 #include "mmlistboxview.h" |
|
38 #include "mmlistboxitemdrawer.h" |
|
39 #include "mmmarqueeadapter.h" |
|
40 #include "mmwidgetcontainer.h" |
|
41 #include "mmwidgetsconstants.h" |
|
42 #include "mmdraweranimator.h" |
|
43 #include "mmtemplatelibrary.h" |
|
44 |
|
45 |
|
46 // ----------------------------------------------------------------------------- |
|
47 // |
|
48 // ----------------------------------------------------------------------------- |
|
49 // |
|
50 CMmListBox::CMmListBox() : AKNDOUBLELISTBOXNAME(R_LIST_PANE_LINES_AB_COLUMN) |
|
51 { |
|
52 // No implementation required |
|
53 } |
|
54 |
|
55 // ----------------------------------------------------------------------------- |
|
56 // |
|
57 // ----------------------------------------------------------------------------- |
|
58 // |
|
59 CMmListBox::~CMmListBox() |
|
60 { |
|
61 delete iRedrawTimer; |
|
62 } |
|
63 |
|
64 // ----------------------------------------------------------------------------- |
|
65 // |
|
66 // ----------------------------------------------------------------------------- |
|
67 // |
|
68 CMmListBox* CMmListBox::NewLC( const CCoeControl* aParent, TInt aFlags, |
|
69 CMmTemplateLibrary* aTemplateLibrary ) |
|
70 { |
|
71 CMmListBox* self = new (ELeave)CMmListBox(); |
|
72 CleanupStack::PushL(self); |
|
73 self->ConstructL( aParent, aFlags, aTemplateLibrary ); |
|
74 return self; |
|
75 } |
|
76 |
|
77 // ----------------------------------------------------------------------------- |
|
78 // |
|
79 // ----------------------------------------------------------------------------- |
|
80 // |
|
81 void CMmListBox::SetListFlag( TInt aFlag ) |
|
82 { |
|
83 iListBoxFlags = iListBoxFlags | aFlag; |
|
84 } |
|
85 |
|
86 // ----------------------------------------------------------------------------- |
|
87 // |
|
88 // ----------------------------------------------------------------------------- |
|
89 // |
|
90 void CMmListBox::ClearListFlag( TInt aFlag ) |
|
91 { |
|
92 iListBoxFlags = iListBoxFlags & !aFlag; |
|
93 } |
|
94 |
|
95 // ----------------------------------------------------------------------------- |
|
96 // |
|
97 // ----------------------------------------------------------------------------- |
|
98 // |
|
99 CMmListBox* CMmListBox::NewL( const CCoeControl* aParent, TInt aFlags, |
|
100 CMmTemplateLibrary* aTemplateLibrary ) |
|
101 { |
|
102 CMmListBox* self = CMmListBox::NewLC( aParent, aFlags, aTemplateLibrary ); |
|
103 CleanupStack::Pop( self ); |
|
104 return self; |
|
105 } |
|
106 |
|
107 // ----------------------------------------------------------------------------- |
|
108 // |
|
109 // ----------------------------------------------------------------------------- |
|
110 // |
|
111 void CMmListBox::ConstructL( const CCoeControl* aParent, TInt aFlags, |
|
112 CMmTemplateLibrary* aTemplateLibrary ) |
|
113 { |
|
114 iDisableChildComponentDrawing = EFalse; |
|
115 iModel = iMmModel = CMmListBoxModel::NewL(); |
|
116 CreateItemDrawerL( aTemplateLibrary ); |
|
117 |
|
118 EnableExtendedDrawingL(); |
|
119 |
|
120 iItemDrawer->SetDrawMark(EFalse); |
|
121 CEikListBox::ConstructL(aParent,aFlags); |
|
122 iMmDrawer->SetView( this ); |
|
123 iRedrawTimer = CPeriodic::NewL( EPriorityRealTime ); |
|
124 } |
|
125 |
|
126 // ----------------------------------------------------------------------------- |
|
127 // Clearing ELeftDownInViewRect flag before invoking the base class |
|
128 // HandlePointerEventL method effectively prevents that method from doing most |
|
129 // of the things it would normally do in response to EButton1Down event. |
|
130 // This flag is explicitly cleared to achieve two things: |
|
131 // 1. Prevent kinetic scrolling (flick) in edit mode. |
|
132 // 2. Prevent highlight removal when popup menu is displayed. |
|
133 // ----------------------------------------------------------------------------- |
|
134 // |
|
135 void CMmListBox::HandlePointerEventInEditModeL( |
|
136 const TPointerEvent& aPointerEvent ) |
|
137 { |
|
138 CMmWidgetContainer* parent = static_cast<CMmWidgetContainer*>( Parent() ); |
|
139 if ( aPointerEvent.iType == TPointerEvent::EButton1Down ) |
|
140 { |
|
141 iButton1DownPos = aPointerEvent.iPosition; |
|
142 } |
|
143 else if ( aPointerEvent.iType == TPointerEvent::EButton1Up ) |
|
144 { |
|
145 TPoint dragDelta = iButton1DownPos - aPointerEvent.iPosition; |
|
146 if ( Abs( dragDelta.iY ) > KDragTreshold || parent->LongTapInProgress() ) |
|
147 { |
|
148 iListBoxFlags &= ~ELeftDownInViewRect; |
|
149 } |
|
150 } |
|
151 |
|
152 TInt itemUnderPointerIndex = KErrNotFound; |
|
153 if ( aPointerEvent.iType == TPointerEvent::EButton1Up || |
|
154 aPointerEvent.iType == TPointerEvent::EButton1Down ) |
|
155 { |
|
156 TBool highlightWasVisible = parent->IsHighlightVisible(); |
|
157 CEikFormattedCellListBoxTypedef::HandlePointerEventL( aPointerEvent ); |
|
158 // Tricky: Do not allow the base class implementation of HandlePointerEventL |
|
159 // to remove the highlight on EButton1Up event when context menu |
|
160 // is displayed for an item |
|
161 if ( aPointerEvent.iType == TPointerEvent::EButton1Up && |
|
162 highlightWasVisible && parent->LongTapInProgress() |
|
163 && !parent->IsHighlightVisible() ) |
|
164 { |
|
165 ItemDrawer()->ClearFlags( CListItemDrawer::ESingleClickDisabledHighlight ); |
|
166 } |
|
167 } |
|
168 else if ( View()->XYPosToItemIndex( |
|
169 aPointerEvent.iPosition, itemUnderPointerIndex ) ) |
|
170 { |
|
171 TInt currentItemIndex = CurrentItemIndex(); |
|
172 if ( currentItemIndex != itemUnderPointerIndex ) |
|
173 { |
|
174 View()->SetCurrentItemIndex( itemUnderPointerIndex ); |
|
175 // remove hightlight from the previously highlighted item |
|
176 } |
|
177 } |
|
178 HandleScrollingInEditMode( aPointerEvent ); |
|
179 } |
|
180 |
|
181 // ----------------------------------------------------------------------------- |
|
182 // |
|
183 // ----------------------------------------------------------------------------- |
|
184 // |
|
185 void CMmListBox::HandleScrollingInEditMode( const TPointerEvent& aPointerEvent ) |
|
186 { |
|
187 if ( aPointerEvent.iType == TPointerEvent::EDrag |
|
188 || aPointerEvent.iType == TPointerEvent::EButtonRepeat ) |
|
189 { |
|
190 TInt nextScrollDelay = ScrollIfNeeded( aPointerEvent ); |
|
191 if ( nextScrollDelay ) |
|
192 { |
|
193 TRect ignoreDragRect( |
|
194 TPoint(aPointerEvent.iParentPosition.iX - MmEffects::KDragIgnoreRectValue, |
|
195 aPointerEvent.iParentPosition.iY - MmEffects::KDragIgnoreRectValue), |
|
196 TPoint(aPointerEvent.iParentPosition.iX + MmEffects::KDragIgnoreRectValue, |
|
197 aPointerEvent.iParentPosition.iY + MmEffects::KDragIgnoreRectValue)); |
|
198 |
|
199 Window().CancelPointerRepeatEventRequest(); |
|
200 Window().RequestPointerRepeatEvent( nextScrollDelay, ignoreDragRect ); |
|
201 } |
|
202 } |
|
203 } |
|
204 |
|
205 // ----------------------------------------------------------------------------- |
|
206 // |
|
207 // ----------------------------------------------------------------------------- |
|
208 // |
|
209 TBool CMmListBox::IsPointerInTopScrollingThreshold( |
|
210 const TPointerEvent& aPointerEvent ) const |
|
211 { |
|
212 TInt topScrollingTreshold = Rect().iTl.iY |
|
213 + ( MmListBox::KFocusScrollingThreshold |
|
214 * TReal( View()->ItemSize().iHeight ) ); |
|
215 |
|
216 return ( aPointerEvent.iPosition.iY < topScrollingTreshold ); |
|
217 } |
|
218 |
|
219 // ----------------------------------------------------------------------------- |
|
220 // |
|
221 // ----------------------------------------------------------------------------- |
|
222 // |
|
223 TBool CMmListBox::IsPointerInBottomScrollingThreshold( |
|
224 const TPointerEvent& aPointerEvent ) const |
|
225 { |
|
226 TInt bottomScrollingTreshold = Rect().iBr.iY |
|
227 - ( MmListBox::KFocusScrollingThreshold |
|
228 * TReal( View()->ItemSize().iHeight ) ); |
|
229 |
|
230 return ( aPointerEvent.iPosition.iY > bottomScrollingTreshold ); |
|
231 } |
|
232 |
|
233 // ----------------------------------------------------------------------------- |
|
234 // |
|
235 // ----------------------------------------------------------------------------- |
|
236 // |
|
237 TInt CMmListBox::ScrollIfNeeded( const TPointerEvent& aPointerEvent ) |
|
238 { |
|
239 TInt nextScrollDelay = 0; |
|
240 |
|
241 TBool readyForScrolling = |
|
242 iMmDrawer->GetAnimator()->IsReadyForNewAnimation() |
|
243 && iMmDrawer->GetFloatingItemCount() != 0; |
|
244 |
|
245 if ( IsPointerInTopScrollingThreshold( aPointerEvent ) ) |
|
246 { |
|
247 // scroll up by one row |
|
248 TInt newCurrentItemIndex = CurrentItemIndex() - 1; |
|
249 |
|
250 if ( newCurrentItemIndex >= 0 ) |
|
251 { |
|
252 nextScrollDelay = MmEffects::KEditModeScrollingDelayFactor * |
|
253 Max( 1, aPointerEvent.iPosition.iY - Rect().iTl.iY ); |
|
254 if (readyForScrolling) |
|
255 { |
|
256 View()->VScrollTo( View()->CalcNewTopItemIndexSoItemIsVisible( |
|
257 newCurrentItemIndex ) ); |
|
258 View()->SetCurrentItemIndex( newCurrentItemIndex ); |
|
259 UpdateScrollBarThumbs(); |
|
260 } |
|
261 } |
|
262 } |
|
263 else if ( IsPointerInBottomScrollingThreshold( aPointerEvent) ) |
|
264 { |
|
265 // scroll down by one row |
|
266 TInt lastItemIndex = iModel->NumberOfItems() - 1; |
|
267 TInt newCurrentItemIndex = CurrentItemIndex() + 1; |
|
268 |
|
269 |
|
270 if ( newCurrentItemIndex <= lastItemIndex ) |
|
271 { |
|
272 nextScrollDelay = MmEffects::KEditModeScrollingDelayFactor * |
|
273 Max( 1, Rect().iBr.iY - aPointerEvent.iPosition.iY ); |
|
274 |
|
275 if (readyForScrolling) |
|
276 { |
|
277 View()->VScrollTo( View()->CalcNewTopItemIndexSoItemIsVisible( |
|
278 newCurrentItemIndex ) ); |
|
279 View()->SetCurrentItemIndex( newCurrentItemIndex ); |
|
280 UpdateScrollBarThumbs(); |
|
281 } |
|
282 } |
|
283 } |
|
284 |
|
285 return nextScrollDelay; |
|
286 } |
|
287 |
|
288 // ----------------------------------------------------------------------------- |
|
289 // |
|
290 // ----------------------------------------------------------------------------- |
|
291 // |
|
292 void CMmListBox::HandlePointerEventL(const TPointerEvent& aPointerEvent) |
|
293 { |
|
294 // if ( aPointerEvent.iType == TPointerEvent::EButton1Down && |
|
295 // iMmDrawer->CachedDataUseIsEnabled() ) |
|
296 // { |
|
297 // // Touching the screen stops flick but avkon does not send us |
|
298 // // MEikListBoxObserver::EEventFlickStopped event in such case. |
|
299 // // Thus this little hack: |
|
300 // iMmDrawer->EnableCachedDataUse( EFalse ); |
|
301 // DrawView(); |
|
302 // } |
|
303 |
|
304 CMmWidgetContainer* parent = static_cast<CMmWidgetContainer*>( Parent() ); |
|
305 |
|
306 if ( parent->IsEditMode() ) |
|
307 { |
|
308 HandlePointerEventInEditModeL( aPointerEvent ); |
|
309 } |
|
310 else |
|
311 { |
|
312 CEikFormattedCellListBoxTypedef::HandlePointerEventL( aPointerEvent ); |
|
313 } |
|
314 |
|
315 } |
|
316 |
|
317 // ----------------------------------------------------------------------------- |
|
318 // |
|
319 // ----------------------------------------------------------------------------- |
|
320 // |
|
321 void CMmListBox::FixViewForMirroredLayout() |
|
322 { |
|
323 TInt scrollbarWidth = |
|
324 ScrollBarFrame()->VerticalScrollBar()->Rect().Width(); |
|
325 TRect r( View()->ViewRect() ); |
|
326 TInt currentShift = r.iTl.iX; |
|
327 TBool scrollbarVisible = ScrollBarFrame()->VerticalScrollBar()->IsVisible(); |
|
328 TBool layoutMirrored = AknLayoutUtils::LayoutMirrored(); |
|
329 |
|
330 if ( layoutMirrored && scrollbarVisible && currentShift != scrollbarWidth ) |
|
331 { |
|
332 // shift view rect to the right |
|
333 r.Move( scrollbarWidth - currentShift, 0 ); |
|
334 View()->SetViewRect( r ); |
|
335 } |
|
336 else if ( ( !layoutMirrored || !scrollbarVisible ) && currentShift != 0 ) |
|
337 { |
|
338 // restore view rect to its normal position |
|
339 r.Move( -currentShift, 0 ); |
|
340 View()->SetViewRect( r ); |
|
341 } |
|
342 } |
|
343 |
|
344 // ----------------------------------------------------------------------------- |
|
345 // |
|
346 // ----------------------------------------------------------------------------- |
|
347 // |
|
348 void CMmListBox::RedrawScrollbarBackground() const |
|
349 { |
|
350 TRect viewRect( View()->ViewRect() ); |
|
351 if ( viewRect.iTl.iX > 0 ) |
|
352 { |
|
353 TRect scrollbarRect( TPoint( 0, 0 ), |
|
354 TSize( viewRect.iTl.iX, viewRect.Height() ) ); |
|
355 |
|
356 CWindowGc* gc = iItemDrawer->Gc(); |
|
357 CMmListBoxItemDrawer* itemDrawer = |
|
358 static_cast<CMmListBoxItemDrawer*>( iItemDrawer ); |
|
359 MAknsSkinInstance *skin = AknsUtils::SkinInstance(); |
|
360 CCoeControl* control = itemDrawer->FormattedCellData()->Control(); |
|
361 MAknsControlContext *cc = AknsDrawUtils::ControlContext( control ); |
|
362 if( gc ) |
|
363 { |
|
364 if ( control ) |
|
365 { |
|
366 AknsDrawUtils::Background( skin, cc, control, *gc, scrollbarRect ); |
|
367 } |
|
368 else |
|
369 { |
|
370 gc->SetBrushColor( BackColor() ); |
|
371 gc->Clear( scrollbarRect ); |
|
372 } |
|
373 } |
|
374 } |
|
375 } |
|
376 |
|
377 // ----------------------------------------------------------------------------- |
|
378 // |
|
379 // ----------------------------------------------------------------------------- |
|
380 // |
|
381 void CMmListBox::ProcessScrollEventL( CEikScrollBar* aScrollBar, |
|
382 TEikScrollEvent aEventType ) |
|
383 { |
|
384 CEikFormattedCellListBoxTypedef::HandleScrollEventL( |
|
385 aScrollBar, aEventType ); |
|
386 } |
|
387 |
|
388 // ----------------------------------------------------------------------------- |
|
389 // |
|
390 // ----------------------------------------------------------------------------- |
|
391 // |
|
392 void CMmListBox::HandleRedrawTimerEventL() |
|
393 { |
|
394 if ( iSkippedScrollbarEventsCount ) |
|
395 { |
|
396 ProcessScrollEventL( ScrollBarFrame()->VerticalScrollBar(), |
|
397 EEikScrollThumbDragVert ); |
|
398 } |
|
399 iSkippedScrollbarEventsCount = 0; |
|
400 } |
|
401 |
|
402 // ----------------------------------------------------------------------------- |
|
403 // |
|
404 // ----------------------------------------------------------------------------- |
|
405 // |
|
406 TInt CMmListBox::RedrawTimerCallback( TAny* aPtr ) |
|
407 { |
|
408 CMmListBox* self = static_cast<CMmListBox*>( aPtr ); |
|
409 TRAP_IGNORE( self->HandleRedrawTimerEventL() ); |
|
410 // Do not bother returning a meaningful error code, CPeriodic will ignore it |
|
411 // anyway. |
|
412 return 0; |
|
413 } |
|
414 |
|
415 // ----------------------------------------------------------------------------- |
|
416 // |
|
417 // ----------------------------------------------------------------------------- |
|
418 // |
|
419 TKeyResponse CMmListBox::OfferKeyEventL( |
|
420 const TKeyEvent& aKeyEvent,TEventCode aType ) |
|
421 { |
|
422 TInt itemIndex = CurrentItemIndex(); |
|
423 TInt previousItemIndex = CurrentItemIndex(); |
|
424 TKeyResponse ret = CEikFormattedCellListBoxTypedef::OfferKeyEventL( |
|
425 aKeyEvent, aType ); |
|
426 TInt currentItemIndex = CurrentItemIndex(); |
|
427 |
|
428 TInt itemY = View()->ItemPos( currentItemIndex ).iY |
|
429 + View()->ItemSize( currentItemIndex ).iHeight; |
|
430 |
|
431 if ( currentItemIndex == BottomItemIndex() |
|
432 && currentItemIndex != previousItemIndex |
|
433 && itemY > View()->ViewRect().iBr.iY ) |
|
434 { |
|
435 if( aType == EEventKey ) |
|
436 { |
|
437 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
438 MAknListBoxTfxInternal* transApi = CAknListLoader::TfxApiInternal( |
|
439 View()->ItemDrawer()->Gc() ); |
|
440 TBool effects = transApi && !transApi->EffectsDisabled(); |
|
441 if ( effects ) |
|
442 { |
|
443 transApi->SetMoveType( MAknListBoxTfxInternal::EListScrollDown ); |
|
444 } |
|
445 #endif |
|
446 iView->VScrollTo( |
|
447 iView->CalcNewTopItemIndexSoItemIsVisible( currentItemIndex ) ); |
|
448 |
|
449 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
450 if ( effects ) |
|
451 { |
|
452 transApi->Draw( Rect() ); |
|
453 } |
|
454 #endif |
|
455 } |
|
456 SetCurrentItemIndex( currentItemIndex ); |
|
457 } |
|
458 |
|
459 RedrawIfNecessary( itemIndex, CurrentItemIndex()); |
|
460 return ret; |
|
461 } |
|
462 |
|
463 // ----------------------------------------------------------------------------- |
|
464 // |
|
465 // ----------------------------------------------------------------------------- |
|
466 // |
|
467 TBool CMmListBox::RedrawIfNecessary( TInt aPreviousCurrent, TInt aCurrent ) |
|
468 { |
|
469 TBool redrawConsumed( EFalse ); |
|
470 if( aCurrent == KErrNotFound ) |
|
471 { |
|
472 return redrawConsumed; |
|
473 } |
|
474 |
|
475 CMmListBoxView * view = static_cast<CMmListBoxView *>(iView); |
|
476 TInt differenceIndex = Abs( aPreviousCurrent - aCurrent ); |
|
477 if ( aPreviousCurrent == KErrNotFound || differenceIndex == 0 ) |
|
478 { |
|
479 //TODO: It should be checked if this is really necessary |
|
480 view->RedrawBackground(); |
|
481 return redrawConsumed; |
|
482 } |
|
483 |
|
484 TInt sizePrevBefore = iMmDrawer->GetItemHeight(aPreviousCurrent, ETrue); |
|
485 TInt sizeCurBefore = iMmDrawer->GetItemHeight(aCurrent, EFalse); |
|
486 TInt sizePrevAfter = iMmDrawer->GetItemHeight(aPreviousCurrent, EFalse); |
|
487 TInt sizeCurAfter = iMmDrawer->GetItemHeight(aCurrent, ETrue); |
|
488 |
|
489 if ( ( sizePrevBefore == sizePrevAfter ) && (sizeCurBefore == sizeCurAfter) ) |
|
490 { |
|
491 return redrawConsumed; |
|
492 } |
|
493 else |
|
494 { |
|
495 TInt sizeAllBefore = sizePrevBefore + sizePrevAfter; |
|
496 TInt sizeAllAfter = sizeCurBefore + sizeCurAfter; |
|
497 |
|
498 TInt lastPotentialItemIndex = Min( iModel->NumberOfItems(), |
|
499 iView->TopItemIndex() + iView->NumberOfItemsThatFitInRect( |
|
500 iView->ViewRect() ) ); |
|
501 TInt redrawIndex = lastPotentialItemIndex; |
|
502 |
|
503 if ( differenceIndex == 1 ) |
|
504 { |
|
505 if( sizeAllBefore != sizeAllAfter ) |
|
506 { |
|
507 redrawIndex = Min( aPreviousCurrent, aCurrent ); |
|
508 } |
|
509 else |
|
510 { |
|
511 return redrawConsumed; |
|
512 } |
|
513 } |
|
514 else if ( differenceIndex > 1 && sizeAllBefore == sizeAllAfter ) |
|
515 { |
|
516 redrawIndex = Min( aPreviousCurrent, aCurrent ); |
|
517 lastPotentialItemIndex = Max( aPreviousCurrent, aCurrent ); |
|
518 } |
|
519 else if ( differenceIndex > 1 ) |
|
520 { |
|
521 redrawIndex = Min( aPreviousCurrent, aCurrent ); |
|
522 } |
|
523 |
|
524 if (redrawIndex < iView->TopItemIndex()) |
|
525 redrawIndex = iView->TopItemIndex(); |
|
526 |
|
527 if (lastPotentialItemIndex > iView->BottomItemIndex()) |
|
528 lastPotentialItemIndex = iView->BottomItemIndex(); |
|
529 |
|
530 if ( aPreviousCurrent < TopItemIndex() ) |
|
531 { |
|
532 lastPotentialItemIndex = BottomItemIndex() ; |
|
533 } |
|
534 else if ( BottomItemIndex() < aPreviousCurrent ) |
|
535 { |
|
536 lastPotentialItemIndex = BottomItemIndex() + 1; |
|
537 } |
|
538 |
|
539 while ( redrawIndex < lastPotentialItemIndex +1 ) |
|
540 { |
|
541 view->DrawSingleItem( redrawIndex++ ); |
|
542 redrawConsumed = ETrue; |
|
543 } |
|
544 |
|
545 view->RedrawBackground(); |
|
546 } |
|
547 return redrawConsumed; |
|
548 } |
|
549 |
|
550 // ----------------------------------------------------------------------------- |
|
551 // |
|
552 // ----------------------------------------------------------------------------- |
|
553 // |
|
554 void CMmListBox::CreateItemDrawerL( CMmTemplateLibrary* aTemplateLibrary ) |
|
555 { |
|
556 CFormattedCellListBoxData* cellData=CFormattedCellListBoxData::NewL(); |
|
557 CleanupStack::PushL( cellData ); |
|
558 iItemDrawer = iMmDrawer = CMmListBoxItemDrawer::NewL( MmModel(), |
|
559 iEikonEnv->NormalFont(), cellData, EListbox, aTemplateLibrary ); |
|
560 CleanupStack::Pop( cellData ); |
|
561 } |
|
562 |
|
563 // ----------------------------------------------------------------------------- |
|
564 // |
|
565 // ----------------------------------------------------------------------------- |
|
566 // |
|
567 CMmListBoxModel* CMmListBox::MmModel() |
|
568 { |
|
569 return iMmModel; |
|
570 } |
|
571 |
|
572 // ----------------------------------------------------------------------------- |
|
573 // |
|
574 // ----------------------------------------------------------------------------- |
|
575 // |
|
576 void CMmListBox::SetMmModel( CMmListBoxModel* aMmModel ) |
|
577 { |
|
578 if ( iMmModel != aMmModel ) |
|
579 { |
|
580 delete iMmModel; |
|
581 iMmModel = aMmModel; |
|
582 } |
|
583 } |
|
584 |
|
585 // ----------------------------------------------------------------------------- |
|
586 // |
|
587 // ----------------------------------------------------------------------------- |
|
588 // |
|
589 CListBoxView* CMmListBox::MakeViewClassInstanceL() |
|
590 { |
|
591 return CMmListBoxView::NewL(); |
|
592 } |
|
593 |
|
594 // ----------------------------------------------------------------------------- |
|
595 // |
|
596 // ----------------------------------------------------------------------------- |
|
597 // |
|
598 TInt CMmListBox::AdjustRectHeightToWholeNumberOfItems(TRect& /*aRect*/) const |
|
599 { |
|
600 return KErrNone; |
|
601 } |
|
602 |
|
603 // ----------------------------------------------------------------------------- |
|
604 // |
|
605 // ----------------------------------------------------------------------------- |
|
606 // |
|
607 void CMmListBox::SetItemDrawerAndViewBgContext (CAknsBasicBackgroundControlContext * aBgContext) |
|
608 { |
|
609 iMmDrawer->SetBgContext (aBgContext); |
|
610 } |
|
611 |
|
612 // ----------------------------------------------------------------------------- |
|
613 // |
|
614 // ----------------------------------------------------------------------------- |
|
615 // |
|
616 TBool CMmListBox::HandleScrollbarVisibilityChangeL() |
|
617 { |
|
618 TBool ret = EFalse; |
|
619 if ( AllItemsFitInViewRect() ) |
|
620 { |
|
621 if ( ScrollBarFrame()->VerticalScrollBar()->IsVisible() |
|
622 || iMmDrawer->TemplateLibrary()->GetScrollbarVisibility() ) |
|
623 { |
|
624 ScrollBarFrame()->VerticalScrollBar()->MakeVisible( EFalse ); |
|
625 iMmDrawer->SetScrollbarVisibilityL( EFalse ); |
|
626 |
|
627 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
628 MAknListBoxTfxInternal *trans = CAknListLoader::TfxApiInternal( ItemDrawer()->Gc() ); |
|
629 if ( trans ) |
|
630 { |
|
631 trans->Remove( MAknListBoxTfxInternal::EListEverything ); |
|
632 } |
|
633 #endif |
|
634 |
|
635 ret = ETrue; //redraw is needed |
|
636 } |
|
637 } |
|
638 else if ( !ScrollBarFrame()->VerticalScrollBar()->IsVisible() |
|
639 || !iMmDrawer->TemplateLibrary()->GetScrollbarVisibility() ) |
|
640 { |
|
641 ScrollBarFrame()->VerticalScrollBar()->MakeVisible( ETrue ); |
|
642 iMmDrawer->SetScrollbarVisibilityL( ETrue ); |
|
643 ret = ETrue; //redraw is needed |
|
644 } |
|
645 return ret; |
|
646 } |
|
647 |
|
648 |
|
649 // ----------------------------------------------------------------------------- |
|
650 // |
|
651 // ----------------------------------------------------------------------------- |
|
652 // |
|
653 TBool CMmListBox::AllItemsFitInViewRect() |
|
654 { |
|
655 CMmListBoxView* view = static_cast< CMmListBoxView* >(iView); |
|
656 TInt totalHeight = view->GetTotalHeight( view->TopItemIndex(), view->BottomItemIndex()); |
|
657 if ( view->TopItemIndex() == 0 && iMmModel->NumberOfItems() <= view->BottomItemIndex() + 1 |
|
658 && totalHeight <= iView->ViewRect().Height() ) |
|
659 { |
|
660 return ETrue; |
|
661 } |
|
662 else |
|
663 { |
|
664 return EFalse; |
|
665 } |
|
666 } |
|
667 |
|
668 /** |
|
669 * Helper class whose only purpose is to ensure that |
|
670 * ScrollToItem method will be always re-enabled. |
|
671 */ |
|
672 struct TScrollToItemEnabler |
|
673 { |
|
674 CMmListBoxView* iV; |
|
675 void Close() { iV->DisableScrollToItem( EFalse ); } |
|
676 }; |
|
677 |
|
678 // ----------------------------------------------------------------------------- |
|
679 // |
|
680 // ----------------------------------------------------------------------------- |
|
681 // |
|
682 void CMmListBox::UpdateScrollBarsL() |
|
683 { |
|
684 TBool redrawNeeded = HandleScrollbarVisibilityChangeL(); |
|
685 if (ScrollBarFrame()->VerticalScrollBar()->IsVisible()) |
|
686 { |
|
687 CMmListBoxView* view = static_cast<CMmListBoxView*>( View() ); |
|
688 view->DisableScrollToItem( ETrue ); |
|
689 TScrollToItemEnabler reverter = { view }; |
|
690 CleanupClosePushL( reverter ); |
|
691 CEikFormattedCellListBoxTypedef::UpdateScrollBarsL(); |
|
692 CleanupStack::PopAndDestroy( &reverter ); |
|
693 } |
|
694 iMmDrawer->TemplateLibrary()->SetScrollbarWidthL( |
|
695 ScrollBarFrame()->VerticalScrollBar()->Rect().Width() ); |
|
696 FixViewForMirroredLayout(); |
|
697 if ( redrawNeeded ) |
|
698 { |
|
699 DrawNow(); |
|
700 } |
|
701 } |
|
702 |
|
703 // ----------------------------------------------------------------------------- |
|
704 // |
|
705 // ----------------------------------------------------------------------------- |
|
706 // |
|
707 void CMmListBox::UpdateScrollBarsNoRedrawL() |
|
708 { |
|
709 HandleScrollbarVisibilityChangeL(); |
|
710 if ( ScrollBarFrame()->VerticalScrollBar()->IsVisible() ) |
|
711 { |
|
712 CMmListBoxView* view = static_cast<CMmListBoxView*>( View() ); |
|
713 view->DisableScrollToItem( ETrue ); |
|
714 TScrollToItemEnabler reverter = { view }; |
|
715 CleanupClosePushL( reverter ); |
|
716 CEikFormattedCellListBoxTypedef::UpdateScrollBarsL(); |
|
717 CleanupStack::PopAndDestroy( &reverter ); |
|
718 iMmDrawer->TemplateLibrary()->SetScrollbarWidthL( |
|
719 ScrollBarFrame()->VerticalScrollBar()->Rect().Width() ); |
|
720 } |
|
721 } |
|
722 |
|
723 // ----------------------------------------------------------------------------- |
|
724 // |
|
725 // ----------------------------------------------------------------------------- |
|
726 // |
|
727 void CMmListBox::SetMarqueeAdapter( CMmMarqueeAdapter* aAdapter ) |
|
728 { |
|
729 iMarqueeAdapter = aAdapter; |
|
730 iMarqueeAdapter->SetControl( const_cast< CMmListBox *>(this) ); |
|
731 } |
|
732 |
|
733 // ----------------------------------------------------------------------------- |
|
734 // |
|
735 // ----------------------------------------------------------------------------- |
|
736 // |
|
737 void CMmListBox::SetMarqueeDrawing( TBool aIsMarqueeBeingDrawn ) |
|
738 { |
|
739 iMmDrawer->SetMarqueeDrawing( aIsMarqueeBeingDrawn ); |
|
740 } |
|
741 |
|
742 // ----------------------------------------------------------------------------- |
|
743 // |
|
744 // ----------------------------------------------------------------------------- |
|
745 // |
|
746 void CMmListBox::HandleItemRemovalL() |
|
747 { |
|
748 CEikFormattedCellListBoxTypedef::HandleItemRemovalL(); |
|
749 DrawNow(); |
|
750 //avkon does not redraw the items for listbox when item is |
|
751 //removed. This needs to be forced here. |
|
752 UpdateScrollBarsL(); |
|
753 } |
|
754 |
|
755 // ----------------------------------------------------------------------------- |
|
756 // If a parent to the supplied control has its Gc set, this function will find |
|
757 // it and return it. (Copied from EIKLBX.CPP, needed by CMmListBox::Draw) |
|
758 // ----------------------------------------------------------------------------- |
|
759 // |
|
760 LOCAL_C CWindowGc* ReplaceGcWithCustomGc( const CEikListBox* aListBox ) |
|
761 { |
|
762 const CCoeControl* parent = aListBox; |
|
763 CWindowGc* customGc; |
|
764 while(parent) |
|
765 { |
|
766 customGc = parent->GetGc(); |
|
767 if ( customGc ) |
|
768 { |
|
769 CListItemDrawer* itemDrawer = aListBox->View()->ItemDrawer(); |
|
770 CWindowGc* originalGc = itemDrawer->Gc(); |
|
771 if ( customGc == originalGc ) |
|
772 { |
|
773 return NULL; |
|
774 } |
|
775 else |
|
776 { |
|
777 itemDrawer->SetGc( customGc ); |
|
778 return originalGc; |
|
779 } |
|
780 } |
|
781 parent = parent->Parent(); |
|
782 } |
|
783 return NULL; |
|
784 } |
|
785 |
|
786 // ----------------------------------------------------------------------------- |
|
787 // |
|
788 // ----------------------------------------------------------------------------- |
|
789 // |
|
790 void CMmListBox::Draw(const TRect& aRect) const |
|
791 { |
|
792 // if (!iResized) |
|
793 // { |
|
794 // return; |
|
795 // } |
|
796 |
|
797 CWindowGc* gc = this->iItemDrawer->Gc(); |
|
798 |
|
799 // If a parent has a custom gc, draw listbox using that gc |
|
800 CWindowGc* replacedGc = ReplaceGcWithCustomGc( |
|
801 static_cast<const CEikListBox*>( this ) ); |
|
802 |
|
803 if (this->iModel->NumberOfItems() == 0) |
|
804 { |
|
805 this->iView->DrawEmptyList(this->Rect()); |
|
806 |
|
807 if ( replacedGc ) |
|
808 { |
|
809 // Stop using the custom gc |
|
810 this->iItemDrawer->SetGc( replacedGc ); |
|
811 } |
|
812 return; |
|
813 } |
|
814 |
|
815 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
816 MAknListBoxTfxInternal *transApi = CAknListLoader::TfxApiInternal( gc ); |
|
817 |
|
818 if ( transApi ) |
|
819 { |
|
820 transApi->SetListType( MAknListBoxTfxInternal::EListBoxTypeMainPane ); |
|
821 // ViewRect might have been moved to the right to prevent grid items |
|
822 // from overlapping the scrollbar in mirrored layout. |
|
823 // However, we still have to draw scrollbar background, thus the |
|
824 // rectangle object passed to MAknListBoxTfxInternal::BeginRedraw must |
|
825 // be placed at (0, 0) so that it covers the area where scrollbar is |
|
826 // drawn. |
|
827 TRect r( View()->ViewRect().Size() ); |
|
828 transApi->BeginRedraw( MAknListBoxTfxInternal::EListView, r ); |
|
829 } |
|
830 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
831 if (!this->iView->RedrawDisabled()) |
|
832 { |
|
833 MAknsControlContext *cc = AknsDrawUtils::ControlContext( this ); |
|
834 if (!cc) cc = ItemDrawer()->FormattedCellData()->SkinBackgroundContext(); |
|
835 |
|
836 if (gc) |
|
837 { |
|
838 TRect clientRect; |
|
839 this->RestoreClientRectFromViewRect(clientRect); |
|
840 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
841 if ( transApi ) |
|
842 { |
|
843 transApi->StartDrawing( MAknListBoxTfxInternal::EListView ); |
|
844 } |
|
845 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
846 gc->SetBrushColor(this->BackColor()); |
|
847 AknsDrawUtils::BackgroundBetweenRects( AknsUtils::SkinInstance(), cc, this, *gc, clientRect, this->iView->ViewRect() ); |
|
848 RedrawScrollbarBackground(); |
|
849 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
850 if ( transApi ) |
|
851 { |
|
852 transApi->StopDrawing(); |
|
853 } |
|
854 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
855 } |
|
856 } |
|
857 if ( this->iModel->NumberOfItems() ) |
|
858 { |
|
859 // finally, draw the actual list |
|
860 this->iView->Draw(&aRect); |
|
861 } |
|
862 #ifdef RD_UI_TRANSITION_EFFECTS_LIST |
|
863 if ( transApi ) |
|
864 { |
|
865 CMmListBoxView* view = static_cast<CMmListBoxView*>( View() ); |
|
866 view->DisableScrollToItem( ETrue ); |
|
867 transApi->EndViewRedraw( aRect ); |
|
868 view->DisableScrollToItem( EFalse ); |
|
869 } |
|
870 #endif //RD_UI_TRANSITION_EFFECTS_LIST |
|
871 if ( replacedGc ) |
|
872 { |
|
873 // Stop using the custom gc |
|
874 this->iItemDrawer->SetGc( replacedGc ); |
|
875 } |
|
876 } |
|
877 |
|
878 // ----------------------------------------------------------------------------- |
|
879 // |
|
880 // ----------------------------------------------------------------------------- |
|
881 // |
|
882 void CMmListBox::DrawView() |
|
883 { |
|
884 iDisableChildComponentDrawing = ETrue; |
|
885 DrawNow(Rect()); |
|
886 iDisableChildComponentDrawing = EFalse; |
|
887 } |
|
888 |
|
889 // ----------------------------------------------------------------------------- |
|
890 // |
|
891 // ----------------------------------------------------------------------------- |
|
892 // |
|
893 void CMmListBox::SetVerticalItemOffset( TInt aOffset ) |
|
894 { |
|
895 static_cast<CMmListBoxView*>( View() )->SetItemOffsetInPixels( aOffset ); |
|
896 UpdateScrollBarThumbs(); |
|
897 } |
|
898 |
|
899 // ----------------------------------------------------------------------------- |
|
900 // |
|
901 // ----------------------------------------------------------------------------- |
|
902 // |
|
903 TInt CMmListBox::VerticalItemOffset() const |
|
904 { |
|
905 return static_cast<CMmListBoxView*>( View() )->VerticalItemOffset(); |
|
906 } |
|
907 |
|
908 // ----------------------------------------------------------------------------- |
|
909 // |
|
910 // ----------------------------------------------------------------------------- |
|
911 // |
|
912 void CMmListBox::SetItemHeight( TInt aItemHeight ) |
|
913 { |
|
914 if ( aItemHeight != iItemHeight ) |
|
915 { |
|
916 iItemHeight = aItemHeight; |
|
917 TRAP_IGNORE( UpdateScrollBarsNoRedrawL() ); |
|
918 } |
|
919 } |
|
920 |
|
921 // ----------------------------------------------------------------------------- |
|
922 // |
|
923 // ----------------------------------------------------------------------------- |
|
924 // |
|
925 void CMmListBox::UpdateScrollBarThumbs() |
|
926 { |
|
927 CEikFormattedCellListBox::UpdateScrollBarThumbs(); |
|
928 } |
|
929 |
|
930 // ----------------------------------------------------------------------------- |
|
931 // |
|
932 // ----------------------------------------------------------------------------- |
|
933 // |
|
934 TInt CMmListBox::CountComponentControls() const |
|
935 { |
|
936 TInt componentControls(0); |
|
937 if ( !iDisableChildComponentDrawing ) |
|
938 { |
|
939 componentControls = CEikFormattedCellListBoxTypedef::CountComponentControls(); |
|
940 } |
|
941 return componentControls; |
|
942 } |
|
943 // ----------------------------------------------------------------------------- |
|
944 // |
|
945 // ----------------------------------------------------------------------------- |
|
946 // |
|
947 void CMmListBox::SetDisableChildComponentDrawing( TBool aDisable ) |
|
948 { |
|
949 iDisableChildComponentDrawing = aDisable; |
|
950 } |
|
951 |
|
952 // ----------------------------------------------------------------------------- |
|
953 // |
|
954 // ----------------------------------------------------------------------------- |
|
955 // |
|
956 void CMmListBox::HandleScrollEventL( CEikScrollBar* aScrollBar, |
|
957 TEikScrollEvent aEventType ) |
|
958 { |
|
959 if ( aEventType == EEikScrollThumbDragVert && !iScrollbarThumbIsBeingDragged ) |
|
960 { |
|
961 iScrollbarThumbIsBeingDragged = ETrue; |
|
962 static_cast<CMmListBoxItemDrawer*>( |
|
963 View()->ItemDrawer() )->EnableCachedDataUse( ETrue ); |
|
964 iRedrawTimer->Start( KScrollingRedrawInterval, KScrollingRedrawInterval, |
|
965 TCallBack( &CMmListBox::RedrawTimerCallback, static_cast<TAny*>( this ) ) ); |
|
966 } |
|
967 else if ( aEventType == EEikScrollThumbReleaseVert ) |
|
968 { |
|
969 iScrollbarThumbIsBeingDragged = EFalse; |
|
970 static_cast<CMmListBoxItemDrawer*>( |
|
971 View()->ItemDrawer() )->EnableCachedDataUse( EFalse ); |
|
972 // The view will be redrawn with cache disabled when ProcessScrollEventL |
|
973 // calls the base class's HandleScrollEventL method -- no need to |
|
974 // explicitly redraw the view. |
|
975 iRedrawTimer->Cancel(); |
|
976 } |
|
977 |
|
978 if ( !iScrollbarThumbIsBeingDragged ) |
|
979 { |
|
980 ProcessScrollEventL( aScrollBar, aEventType ); |
|
981 } |
|
982 else |
|
983 { |
|
984 __ASSERT_DEBUG( aEventType == EEikScrollThumbDragVert, User::Invariant() ); |
|
985 ++iSkippedScrollbarEventsCount; |
|
986 } |
|
987 } |
|
988 |
|
989 // End of file |