author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 18 Aug 2010 10:06:46 +0300 | |
changeset 40 | 2cb9bae34d17 |
parent 23 | f043c81198e3 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0"" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* Provides the CAknFepUICtrlCandidatePane definition. |
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* |
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*/ |
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#ifndef __AKN_FEP_CANDIDATE_PANE_H__ |
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#define __AKN_FEP_CANDIDATE_PANE_H__ |
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#include <e32std.h> |
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#include <coecntrl.h> |
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#include "AknFepUiCtrlContainerChinese.h" |
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/** |
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* TPage holds the start index, end index and start position in buffer of every display page |
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*/ |
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struct TPage |
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{ |
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TInt iStartIndex; |
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TInt iEndIndex; |
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}; |
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/** |
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* Pane which displays the Chinese Candidates. |
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*/ |
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class MAknFepUICtrlCandidatePane |
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{ |
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public: |
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enum |
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{ |
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EOneCandidate = 1, |
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EMaxCandidates = 10, |
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EMaxPages = 10, |
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EPhraseLength = 10 |
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}; |
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/** |
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* each candidate can be in a certain mode, which may affect its layout. Note |
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* that only stroke is needed at this time (for components), but more modes could be added |
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* later if the LAF spec changes. |
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*/ |
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enum TCandidateMode |
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{ |
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ECandidateModeNormal, |
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ECandidateModeStroke |
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}; |
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public: |
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/** |
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* Allows the client to set a descriptor pointer into an existing buffer of |
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* data, avoiding unnecessary copying of data. |
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* <p> Note that if the buffer contains less characters than the current |
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* visible count, then the remaining characters will not be displayed. |
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* <p> Note also that if the current selection falls outside the range |
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* of the size of the new buffer, it will be made not visible. |
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* However, the current highlighted state remains, so if the selection |
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* is set once more to a valid entry (or if the buffer is set to a length that |
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* includes the currently selected position), and the highlight is still enabled, |
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* the highlight will reappear. |
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* |
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* @param aBufferPtr descriptor that contains the candidates for display, |
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* could be a pointer into a subset of a larger descriptor |
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* that contains all the candidates. Note that only the |
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* first EMaxCandidates of aBuffer will be used. |
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* Length must be > 0. |
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*/ |
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virtual void SetCandidateBuffer(const TDesC& aBuffer) = 0; |
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|
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/** |
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* This function sets the highlighted status of the pane for rendering purposes. |
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* If the Pane is highlighted it displays the current selected Candidate, |
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* plus numbers with each of the other Candidates. |
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* |
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* @param aHighlighted ETrue if the highlight is to be set |
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* EFalse if the highlight is to be removed |
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*/ |
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virtual void SetHighlighted(TBool aHighlighted) = 0; |
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/** |
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* enable/disable the rendering of the Horizontal Scroll Arrows. |
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* |
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* @param aValue if ETrue, enable the arrows |
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* if EFalse, disable the arrrows |
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*/ |
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virtual void ShowHorizontalScrollArrows(TBool aValue) = 0; |
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/** |
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* enable/disable the rendering of the up Scroll Arrows. |
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* |
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* @param aValue if ETrue, enable the arrows |
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* if EFalse, disable the arrrows |
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*/ |
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virtual void ShowUpScrollArrows(TBool aValue) = 0; |
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/** |
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* enable/disable the rendering of the down Scroll Arrows. |
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* |
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* @param aValue if ETrue, enable the arrows |
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* if EFalse, disable the arrrows |
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*/ |
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virtual void ShowDownScrollArrows(TBool aValue) = 0; |
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/** |
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* enable/disable the rendering of the left Scroll Arrows. |
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* |
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* @param aValue if ETrue, enable the arrows |
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* if EFalse, disable the arrrows |
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*/ |
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virtual void ShowLeftScrollArrows(TBool aValue) = 0; |
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|
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/** |
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* enable/disable the rendering of the right Scroll Arrows. |
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* |
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* @param aValue if ETrue, enable the arrows |
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* if EFalse, disable the arrrows |
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*/ |
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virtual void ShowRightScrollArrows(TBool aValue) = 0; |
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|
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/** |
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* enable/disable the rendering of the Vertical Scroll Arrows. |
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* |
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* @param aValue if ETrue, enable the arrows |
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* if EFalse, disable the arrrows |
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*/ |
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virtual void ShowVerticalScrollArrows(TBool aValue) = 0; |
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|
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/** |
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* enable/disable the rendering of the candidate ordinal numbers |
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* |
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* @param aValue if ETrue, enable the ordinals |
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* if EFalse, disable the ordinals |
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* |
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*/ |
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virtual void ShowCandidateOrdinals(TBool aValue) = 0; |
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|
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/** |
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* This function returns the number of Candidates that are visible in the pane |
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* in its current configuration. |
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* |
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* @return number of candidates that are currently visible |
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*/ |
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virtual TInt VisibleCandidateCount() const = 0; |
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|
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/** |
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* Select the first visible item in the candidate buffer |
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* |
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* @return ETrue if success, EFalse if no items visible |
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* |
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*/ |
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virtual TBool SelectFirst() = 0; |
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|
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/** |
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* Select the first visible phrase item in the candidate buffer |
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* |
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* @return ETrue if success, EFalse if no items visible |
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* |
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*/ |
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virtual TBool SelectFirstPhrase() = 0; |
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|
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/** |
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* Select the last visible item in the candidate buffer |
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* |
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* @return ETrue if success, EFalse if no items visible |
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* |
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*/ |
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virtual TBool SelectLast() = 0; |
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|
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/** |
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* Select the last visible phrase item in the candidate buffer |
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* |
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* @return ETrue if success, EFalse if no items visible |
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* |
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*/ |
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virtual TBool SelectLastPhrase() = 0; |
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|
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/** |
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* Select the next visible item |
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* |
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* @return ETrue if success, |
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* EFalse if no items visible, or if already on last visible item |
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*/ |
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virtual TBool SelectNext() = 0; |
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/** |
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* Select the previous visible item |
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* |
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* @return ETrue if success, |
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* EFalse if no items visible, or if already on first visible item |
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*/ |
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virtual TBool SelectPrev() = 0; |
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|
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/** |
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* This function selects the given index. |
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* <p> Note that if the new selected index is within the visible count, |
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* but falls on a candidate that is not valid (i.e. if it falls outside the |
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* length of the candidate buffer) then nothing happens and EFalse is returned |
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* |
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* @param aIndex If aIndex falls outside length of candidate buffer, |
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* then return EFalse to indicate failure. |
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* @return ETrue if index was valid, EFalse if index not valid |
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*/ |
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virtual TBool SelectIndex(TInt aIndex, TBool selected = ETrue) = 0; |
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/** |
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* This function returns the selected index of the Candidate Pane. |
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* |
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* @return the index of the selected item. If the Pane is not highlighted it returns 0. |
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* |
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*/ |
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virtual TInt SelectedIndex() const = 0; |
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/** |
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* This function returns the character at index of the current selection |
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* |
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* @return a descrptor containing the character that is currently selected. |
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* If the currect selection falls outside the length of the current buffer, |
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* then return a null descriptor |
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* |
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*/ |
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virtual TPtrC CurrentCandidate() const = 0; |
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/** |
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* This function returns the phrase at index of the current selection |
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* |
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* @return a descrptor containing the character that is currently selected. |
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* If the currect selection falls outside the length of the current buffer, |
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* then return a null descriptor |
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* |
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*/ |
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virtual TPtrC CurrentPhraseCandidate() const = 0; |
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/** |
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* Split phrase candidates into pages |
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*/ |
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virtual void SplitPhraseCandidatesIntoPages() = 0; |
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|
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/** |
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* Navigate to next page |
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*/ |
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virtual void NextCandidatePage(void) = 0; |
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|
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/** |
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* Navigate to previous page |
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*/ |
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virtual void PreviousCandidatePage(void) = 0; |
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|
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/** |
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* Return candidate array |
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*/ |
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virtual CDesCArrayFlat* CandidateArray(void) = 0; |
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|
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/** |
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* Set phrase candidate buffer |
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*/ |
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virtual void SetCandidateBuffer(void) = 0; |
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|
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/** |
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* Reset candidate pane state and variables |
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*/ |
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virtual void ResetCandidateState() = 0; |
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|
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/** |
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* To test whether current page is the first page |
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*/ |
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virtual TBool IsFirstPage() = 0; |
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|
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/** |
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* To test whether current page is the last page |
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*/ |
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virtual TBool IsLastPage() = 0; |
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|
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/** |
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* To set all the cnadidate label invisible(phrase creation) |
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*/ |
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virtual void SetInVisiable() = 0; |
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|
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/** |
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* To test whether need to get new candidate page |
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*/ |
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virtual TBool NeedGetNewCandidatePage() = 0; |
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}; |
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#endif //__AKN_FEP_CANDIDATE_PANE_H__ |
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// End of file |