uifw/EikStd/coctlsrc/AknInlineText.cpp
changeset 0 2f259fa3e83a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uifw/EikStd/coctlsrc/AknInlineText.cpp	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,275 @@
+/*
+* Copyright (c) 2003 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:  ?Description
+*
+*/
+
+
+// INCLUDE FILES
+
+#include "AknInlineText.h"
+
+// LOCAL FUNCTIONS
+
+GLDEF_C void Panic(TAknInlineTextFormattingPanic aPanic)
+	{
+    User::Panic(KAknInlineTextFormatting, aPanic);
+	}
+
+// MODULE TEMPLATES
+
+// MODULE DATA STRUCTURES
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// CAknPositionedInlineText
+//
+////////////////////////////////////////////////////////////////////////////////
+
+// -----------------------------------------------------------------------------
+// 2 stage constructor
+// -----------------------------------------------------------------------------
+
+CAknPositionedInlineText* CAknPositionedInlineText::NewL( const TTmDocPos& aPosition, const TDesC& aInlineText )
+    {
+    CAknPositionedInlineText* self = 
+        new (ELeave) CAknPositionedInlineText( aPosition ); // Only partially constructed at this point
+    CleanupStack::PushL( self );
+    self->ConstructL( aInlineText );
+    CleanupStack::Pop();
+    return self;
+    }
+
+CAknPositionedInlineText::~CAknPositionedInlineText()
+    {
+    delete iText;
+    }
+
+const TTmDocPos& CAknPositionedInlineText::DocPos() const
+    {
+    return iDocPos;
+    }
+
+const TDesC& CAknPositionedInlineText::InlineText() const
+    {
+    return *iText;
+    }
+
+CAknPositionedInlineText::CAknPositionedInlineText( const TTmDocPos& aPosition )
+    : iDocPos(aPosition)
+    {
+    }
+
+void CAknPositionedInlineText::ConstructL( const TDesC& aInlineText )
+    {
+    iText = aInlineText.AllocL();
+    }
+////////////////////////////////////////////////////////////////////////////////
+//
+// CAknInlineTextStore
+//
+////////////////////////////////////////////////////////////////////////////////
+
+const TInt KAknInlineTextStoreGranularity(2);
+
+CAknInlineTextStore* CAknInlineTextStore::NewL()
+    {
+    return new (ELeave) CAknInlineTextStore();
+    }
+       
+CAknInlineTextStore::~CAknInlineTextStore()
+    {
+    ResetAndDestroy();
+    }
+
+void CAknInlineTextStore::Clear()
+    {
+    ResetAndDestroy();
+    }
+
+void CAknInlineTextStore::ClearRange( const TTmDocPos& aStart, const TTmDocPos& aEnd )
+    {
+    TInt nToDelete(0);
+    TInt firstToDelete(0);
+    for (TInt index = Count() - 1; index >=0 ; --index)
+	    {
+        CAknPositionedInlineText* inlineText = At(index);
+        const TTmDocPos& docPos = inlineText->DocPos();
+		if ( aStart <= docPos && docPos <= aEnd )
+            {
+            delete ( inlineText );
+            firstToDelete = index; // running lowest index to delete
+            nToDelete++;
+            }
+		}
+    // Perform deletions from array in one go as this is an expensive operation
+	if ( nToDelete > 0 )
+        Delete( firstToDelete, nToDelete );
+    }
+
+void CAknInlineTextStore::InsertInlineTextL( CAknPositionedInlineText* aInlineText )
+    {
+    TInt insertPosition(0);
+    for (TInt ii = Count()-1; ii >= 0; --ii)
+		{
+		if ( At(ii)->DocPos() <= aInlineText->DocPos() )
+            {
+            insertPosition = ii+1;
+            break;
+            }
+		}
+
+    InsertL( insertPosition, aInlineText );
+    }
+
+const TTmDocPos* CAknInlineTextStore::NextInlineTextDocPos( const TTmDocPos& aDocPos ) const
+    {
+    const TTmDocPos* retPtr = NULL;
+    TInt index = NextIndexStartingAtDocPos( aDocPos );
+    if ( index >=0 )
+        retPtr = &(At( index )->DocPos());
+    return retPtr;
+    }
+
+TInt CAknInlineTextStore::NextIndexStartingAtDocPos( const TTmDocPos& aDocPos ) const
+    {
+
+    TInt count = Count();
+    if ( count == 0 )
+        return -1;
+      
+    if ( At(count-1)->DocPos() < aDocPos  ) // even biggest is at lower docpos
+        return -1;
+
+    TInt index;
+    for (index = 0; index < count ; ++index)
+	    {
+		if ( At(index)->DocPos() >= aDocPos  )
+            {
+            break;
+            }
+		}
+
+    __ASSERT_DEBUG( index < count , Panic( EAknInlineTextFormattingStoreCorrupted) );
+
+    return index;
+    }
+
+TInt CAknInlineTextStore::IndexFromDocPos( const TTmDocPos& aDocPos ) const
+    {
+    TInt matchedIndex = -1;
+    TInt indexFound = NextIndexStartingAtDocPos( aDocPos );
+    if (indexFound != -1 &&  At(indexFound)->DocPos() == aDocPos )
+        matchedIndex = indexFound;
+    return matchedIndex;
+    }
+
+CAknInlineTextStore::CAknInlineTextStore() : CArrayPtrFlat<CAknPositionedInlineText>( KAknInlineTextStoreGranularity )
+    {}
+ 
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// CAknInlineTextSource
+//
+////////////////////////////////////////////////////////////////////////////////
+
+CAknInlineTextSource::CAknInlineTextSource()
+    {}
+
+void CAknInlineTextSource::ConstructL()
+    {
+    iInlineTextStore = CAknInlineTextStore::NewL();
+    }
+
+CAknInlineTextSource::~CAknInlineTextSource()
+    {
+    delete iInlineTextStore;
+    }
+
+TInt CAknInlineTextSource::GetNextInlineTextPosition(
+    const TTmDocPos& aFrom, 
+    TInt aMaxLength, 
+    TTmDocPos& aNext)
+    {
+
+    TInt errReturn = KErrNotFound; // Default is that there is nothing found
+
+    const TTmDocPos* nextPos = iInlineTextStore->NextInlineTextDocPos( aFrom );
+    // This returns NULL if nothing found   
+    if ( nextPos )
+        {
+
+        if ( // pos must be strictly less than aFrom + aMaxLength, but may be 1 further if trailing
+            (nextPos->iPos < (aFrom.iPos + aMaxLength) )
+            || 
+            (!nextPos->iLeadingEdge && (nextPos->iPos <= (aFrom.iPos + aMaxLength)) ) 
+           )
+            {
+            aNext = *nextPos; // Copies the structure
+            errReturn = KErrNone; // Report valid data
+            }
+        }
+        
+    return errReturn;
+    }
+
+TPtrC CAknInlineTextSource::GetInlineText(const TTmDocPos& aPos)
+    {
+    TInt index = iInlineTextStore->IndexFromDocPos( aPos );
+    if ( index >= 0 )
+        return iInlineTextStore->At( index )->InlineText();
+    else
+        {
+        __ASSERT_DEBUG( EFalse, Panic(EAknInlineTextFormattingBadInlineTextFetch) );
+        return KNullDesC();
+        }
+    }
+
+TBool CAknInlineTextSource::HasInlineTextAt(const TTmDocPos& aPos, TPtrC& aPtrFound) const
+    {
+    TBool retVal( EFalse );
+    TInt index = iInlineTextStore->IndexFromDocPos( aPos );
+    if ( index != -1 )
+        {
+        retVal = ETrue;
+        aPtrFound.Set(iInlineTextStore->At( index )->InlineText()) ;
+        }
+    return retVal;
+    }
+
+CAknInlineTextStore* CAknInlineTextSource::InlineTextStore() const
+    {
+    return iInlineTextStore;
+    }
+
+/**
+* Empty implementation as all "when to format policy" is determined by sub-classes.  However, 
+* this class implements so that sub-classes only have to implement what they need.
+*/
+void CAknInlineTextSource::CheckFormattingL(const TTmDocPos& /*aFrom*/, const TTmDocPos& /*aTo*/ )
+    {}
+
+/**
+* Empty implementation as all upon-edit policy is determined by sub-classes.  However, 
+* this class implements so that sub-classes only have to implement what they need.
+*/
+void CAknInlineTextSource::EditObserver( TInt /*aStart*/, TInt /*aExtent*/ ) 
+    {}
+
+
+
+//  End of File