fep/aknfep/src/AknFepUiInputStateCandidateChinese.cpp
changeset 0 eb1f2e154e89
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fep/aknfep/src/AknFepUiInputStateCandidateChinese.cpp	Tue Feb 02 01:02:04 2010 +0200
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0""
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:            Implementation of Pinyin phrase predictive Qwerty state
+*
+*/
+
+
+
+
+
+
+
+
+
+
+
+
+// System includes
+#include <PtiEngine.h>                      //CPtiEngine
+
+// User includes
+#include "AknFepUiInputStateCandidateChinese.h"
+#include "AknFepUiCtrlContainerChinese.h"
+#include "AknFepUIManagerStateInterface.h"  //MAknFepUIManagerStateInterface
+#include "AknFepUICtrlCandidatePane.h"      //MAknFepUICtrlCandidatePane
+#include "AknFepManagerUIInterface.h"       //MAknFepManagerUIInterface
+#include "AknFepManager.h"
+
+const TInt KMaxCandidateCountFromCore = 6;
+
+// ---------------------------------------------------------------------------
+// TAknFepInputStateCandidateChinese::
+// TAknFepInputStateCandidateChinese
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+TAknFepInputStateCandidateChinese::TAknFepInputStateCandidateChinese(
+                               MAknFepUIManagerStateInterface* aOwner,
+                               MAknFepUICtrlContainerChinese* aUIContainer)
+    :TAknFepInputStateCandidateBase(aOwner, aUIContainer)
+    {
+    iState = ECandidate;
+    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();
+    uiContainer->CandidatePane()->SelectFirst();
+
+    TBool multiplePages = iOwner->PtiEngine()->MoreCandidatePages();
+    TInt bufLength = iOwner->PtiEngine()->CandidatePage().Length();
+    TBool showHorizontalScrollArrows = multiplePages || bufLength>1;
+
+    uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 
+    uiContainer->ShowVerticalScrollArrows(multiplePages);
+    uiContainer->FocusCandidatePane(ETrue);
+    uiContainer->CandidatePane()->ShowCandidateOrdinals(ETrue);
+    UpdateIndicator();
+    }
+
+// ---------------------------------------------------------------------------
+// TAknFepInputStateCandidateChinese::
+// HandleKeyL
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+TBool TAknFepInputStateCandidateChinese::HandleKeyL(TInt aKey, TKeyPressLength /*aLength*/)
+    {
+    if(aKey==EKeyBackspace)
+        {
+        iOwner->ChangeState(EEntry);
+        return ETrue;
+        }
+        
+    if (aKey == EPtiKeyStar)
+        {
+        iOwner->FepMan()->TryCloseUiL();
+        return EFalse;
+        }   
+
+    if(!( HandleVerticalNavigation(aKey) || HandleHorizontalNavigation(aKey) ))
+        {
+        // it may be one of the 'valid' numbers..
+        TInt index = MapKeyToIndex(aKey);
+        MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+
+        if(candidatePane->SelectIndex(index) || aKey == EKeyOK)
+            {
+            TPtrC text = candidatePane->CurrentCandidate();
+            if(text.Length()) 
+                {            
+                MAknFepManagerUIInterface* fepMan = iOwner->FepMan();
+                fepMan->NewCharacterL(text);
+                fepMan->CommitInlineEditL();
+                
+                if (fepMan->IsFlagSet(CAknFepManager::EFlagEditorFull))
+                    {
+                    fepMan->ClearFlag(CAknFepManager::EFlagEditorFull);
+                    iOwner->FepMan()->TryCloseUiL();
+                    }
+                else
+                    {
+                    iOwner->ChangeState(EPredictiveCandidate);
+                    UpdateIndicator();
+                    }
+                }
+            else
+                {
+                // No candidates available. Back to Entry state.
+                iOwner->ChangeState(EEntry);
+                }
+            }
+        }
+
+    return ETrue;
+    }  
+    
+// ---------------------------------------------------------------------------
+// TAknFepInputStateCandidateChinese::
+// HandleHorizontalNavigation
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+TBool TAknFepInputStateCandidateChinese::HandleHorizontalNavigation(TInt aKey)
+    {
+    MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+    CPtiEngine* ptiengine = iOwner->PtiEngine();
+    TBool response = EFalse;
+
+    // Do navigation...
+    if (aKey == EKeyLeftArrow)
+        {
+        if (candidatePane->SelectedIndex() == 0 && 
+            ptiengine->NumberOfCandidates() == 0)
+            {
+            return ETrue;
+            }
+        if(!candidatePane->SelectPrev())
+            {
+            ptiengine->PreviousCandidatePage();
+            candidatePane->SetCandidateBuffer(ptiengine->CandidatePage());
+            candidatePane->SelectLast();
+            }
+        response = ETrue;
+        }
+    else if (aKey == EKeyRightArrow)
+        {
+        TInt bufLength = iOwner->PtiEngine()->CandidatePage().Length();
+        
+        if (bufLength != KMaxCandidateCountFromCore &&
+            candidatePane->SelectedIndex() == (bufLength -1))
+            {
+			return ETrue;
+            }
+        if(!candidatePane->SelectNext())
+            {
+            ptiengine->NextCandidatePage();
+            candidatePane->SetCandidateBuffer(ptiengine->CandidatePage());
+            candidatePane->SelectFirst();
+            }
+        response = ETrue;
+        }
+    
+    if (response) 
+        {
+        UpdateIndicator();
+        }
+        
+    return response;
+    }
+
+// ---------------------------------------------------------------------------
+// TAknFepInputStateCandidateChinese::
+// HandleVerticalNavigation
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+TBool TAknFepInputStateCandidateChinese::HandleVerticalNavigation(TInt aKey)
+    {
+    CPtiEngine* ptiengine = iOwner->PtiEngine();
+
+    if (aKey == EKeyDownArrow)
+        {
+        if (iOwner->PtiEngine()->CandidatePage().Length() != 
+            KMaxCandidateCountFromCore)
+            {
+            return ETrue; 
+            }
+        ptiengine->NextCandidatePage();
+        }
+    else if (aKey == EKeyUpArrow)
+        {
+        if (ptiengine->NumberOfCandidates() == 0)
+            {
+            return ETrue;            
+            }
+        ptiengine->PreviousCandidatePage();
+        }
+    else
+        {
+        return EFalse;
+        }
+
+    MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+    candidatePane->SelectFirst();
+    candidatePane->SetCandidateBuffer(ptiengine->CandidatePage());
+    UpdateIndicator();
+
+    return ETrue;
+    }
+    
+// ---------------------------------------------------------------------------
+// TAknFepInputStateCandidateChinese::
+// UpdateIndicator
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+void TAknFepInputStateCandidateChinese::UpdateIndicator()
+    {
+    CPtiEngine* ptiengine = iOwner->PtiEngine();
+    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();        
+    TInt bufLength = iOwner->PtiEngine()->CandidatePage().Length();
+    MAknFepUICtrlCandidatePane* candidatePane = uiContainer->CandidatePane();
+        
+    if (ptiengine->NumberOfCandidates() == 0)
+        {
+        uiContainer->CandidatePane()->ShowUpScrollArrows(EFalse);    
+        }
+    else
+        {
+        uiContainer->CandidatePane()->ShowUpScrollArrows(ETrue);    
+        }
+    
+    uiContainer->CandidatePane()->ShowDownScrollArrows
+        (bufLength == KMaxCandidateCountFromCore ? ETrue : EFalse);
+        
+    if (candidatePane->SelectedIndex() == 0 && 
+        ptiengine->NumberOfCandidates() == 0)
+        {
+        uiContainer->CandidatePane()->ShowLeftScrollArrows(EFalse);
+        }
+    else
+        {
+        uiContainer->CandidatePane()->ShowLeftScrollArrows(ETrue);
+        }
+        
+    if (bufLength != KMaxCandidateCountFromCore &&
+        candidatePane->SelectedIndex() == (bufLength -1))
+        {
+        uiContainer->CandidatePane()->ShowRightScrollArrows(EFalse);        
+        }
+    else
+        {
+        uiContainer->CandidatePane()->ShowRightScrollArrows(ETrue);
+        }
+    }
+
+// End of file