author | Simon Howkins <simonh@symbian.org> |
Mon, 15 Nov 2010 14:00:51 +0000 | |
branch | RCL_3 |
changeset 59 | 7febbd162ded |
parent 0 | eb1f2e154e89 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007 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: Avkon implementation of non-focusing popup menu to show word candidates. |
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* |
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*/ |
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#ifndef __AKN_FEP_AVKON_CANDIDATE_POPUP_H |
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#define __AKN_FEP_AVKON_CANDIDATE_POPUP_H |
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#include "AknFepCandidatePopup.h" |
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#include "AknFepCandidatePopupCallback.h" |
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#include <aknPopup.h> |
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#include <PtiDefs.h> |
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// FORWARD DECLARATIONS |
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class TAknPopupLayouts; |
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class TRect; |
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// CLASS DECLARATION |
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class CAknFepAvkonCandidatePopup : public CAknPopupList, public MAknFepCandidatePopup |
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{ |
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public: // construction and destruction |
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/** |
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* Two-phased constructor |
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* @param aOwner Reference to the owner of the popup which provides |
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* the candidates to be shown |
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* @return A new instance of the class. |
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*/ |
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static CAknFepAvkonCandidatePopup* NewL( MAknFepCandidatePopupCallback& aOwner ); |
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/** |
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* Destructor |
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*/ |
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~CAknFepAvkonCandidatePopup(); |
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public: // methods |
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/** |
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* Getter for the currently active word |
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* @return The currently active word as pointer descriptor |
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*/ |
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TPtrC ActiveWord() const; |
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/** |
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* Getter for the exact word (the word with ordinal 0) |
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* @return The exact word as pointer descriptor. |
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*/ |
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TPtrC ExactWord() const; |
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/** |
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* Makes the pop-up selection list visible and blocks until the dialog has been dismissed. |
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* @param aInlineEditorRect Tells the place of the inline editor. If possible, the popup is opened |
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* so that it does not hide the inline editor. |
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* @param aSelectedIdx Output argument for the selected index. |
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* @param aLastKeyEvent The last key event received by the popup. On return this is the event |
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* which closed the popup. |
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* @param aRightToLeftLanguage Direction of the candidate language.ETrue is right to left. EFalse otherwise |
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* @param aKeyboard Type of keyboard in use. |
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* |
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* @return The command id used to close the window. EAknFepSoftkeySpell, EAknSoftkeyCancel, or EAknSoftkeySelect |
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*/ |
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TInt ExecutePopupL( const TRect& aInlineEditorRect, TInt& aSelectedIdx, TKeyEvent& aLastKeyEvent, TBool aRightToLeftLanguage, TInt aKeyboard ); |
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/** |
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* Function called when the dialog is dismissed. Among other things, this hides the dialog |
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* and deblocks the thread. Unlike in the base class, the instance is not destroyed here. |
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* The same popup instance can be reused by calling ExecutePopupL() again. |
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* @param aAccept EFalse if the dialog was cancelled. |
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* ETrue otherwise. |
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*/ |
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void AttemptExitL(TBool aAccept); |
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/** |
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* Function called when there is a change of resource, typically when there is a layout switch. |
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* Overidden the base implementation for the same. This is because the position of the popup |
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* also chnages when there is a layout change. |
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* @param aType : Specifies the type of layout switch. |
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*/ |
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void HandleResourceChange(TInt aType); |
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/** |
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* Removes the focus from the candidate list and makes the editor to be in focus. |
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*/ |
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void UnFocus(); |
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/** |
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* Changes the position where the candidate list is shown. The position of the candidate list is choosen by the |
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* candidate list itself but can be controlled by the inline text rectangle. |
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* @param aRect The inline text rect. |
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*/ |
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void ShowAtNewPosition(TRect aRect); |
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/** |
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* Reduce the candidate pop up control priority and add it to stack. |
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* Basically, this function is called,if after void UnFocus(); |
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* |
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* Whenever layout Change is happen opencandidate list, then candidatelist priority |
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* should be reduce, otherwise updated inline rect |
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*/ |
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void SetFocusAddStackReducePriorityL(); |
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protected: // methods |
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/** |
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* Handler for key evemts. |
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* @param aKeyEvent The key event to be handled. |
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* @param aType The type of the key event to be handled. |
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* @return EKeyWasConsumed If the offered key event is consumed. |
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* EKeyWasNotConsumed Otherwise. |
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*/ |
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virtual TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType); |
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134 |
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/** |
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* Processing of the CBA commands |
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* @param aCommandId The command to be handled. |
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*/ |
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virtual void ProcessCommandL(TInt aCommandId); |
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/** |
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* Calculates the position for the popup window and places it there |
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* @param aInlineEditorRect The placement of the inline editor is used as reference. |
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* The inline editor is not hidden behind the popup if possible. |
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* The preferred location for the popup is under the inline editor. |
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* The next best place is on the right side of the inline editor, |
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* then on the top of the editor and last on the left side of the editor. |
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*/ |
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virtual void SetupWindowLocation( const TRect& aInlineEditorRect ); |
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|
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/** |
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* Sets up the layout of the popup window. |
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* Modified from CAknPopupList::SetupWindowLayout() |
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*/ |
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virtual void SetupWindowLayout( AknPopupLayouts::TAknPopupLayouts aType ); |
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|
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/** |
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* Calculates the width of the popup window based on the candidates available on the list. |
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* The with is always set to as small as possible without truncation. |
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* The client application area is used as reference to ensure that the popup is never wider |
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* than the application area. |
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* @param aClientRect The client application area. |
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* @return The window widt in pixels. |
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*/ |
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TInt CalculateWindowWidth( const TRect& aClientRect ); |
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|
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/** |
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* Updates the popup window layout. |
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* Modified from AknPopupLayouts::HandleSizeChanged() |
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*/ |
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void HandleSizeChanged( TAknPopupWindowLayoutDef &aDef, |
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AknPopupLayouts::TAknPopupLayouts aLayout_1, |
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TAknPopupLayoutsNode *aNode ); |
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|
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/** |
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* The C++ constructor |
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* @param aOwner Reference to the owner of the popup which provides |
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* the candidates to be shown |
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*/ |
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CAknFepAvkonCandidatePopup( MAknFepCandidatePopupCallback& aOwner ); |
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|
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/** |
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* Second phase constructor. |
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*/ |
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void ConstructL(); |
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static TInt HandleChrKeyMonitorCallback(TAny* aParam); |
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|
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private: // data |
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//! Owner of this popup. Provides the candidates. |
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MAknFepCandidatePopupCallback& iOwner; |
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|
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//! The listbox embedded into this popup |
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CEikFormattedCellListBox* iList; |
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|
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//! Array of candidates shown in the popup list |
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CDesCArray* iCandidates; |
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//! Pointer to variable containing the index of currently selected word. |
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TInt* iSelectedIdx; // not owned |
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//! Pointer to variable containing the last received key event. |
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TKeyEvent* iLastKeyEvent; // not owned |
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//! Last received command. EAknSoftkeySelect, EAknSoftkeySpell, or EAknSoftkeyCancel. |
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TInt iLastCommandId; |
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//! Candidate Language direction. |
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TBool iRightToLeftCandidate; |
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//! Keyboard type in use. |
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TPtiKeyboardType iKeyboard; |
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CPeriodic* iChrKeypressMonitor; |
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//The inline text rectangle that is used as a reference for showing the candidate list. |
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TRect iInlineTextRect; |
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}; |
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#endif // __AKN_FEP_AVKON_CANDIDATE_POPUP_H |
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