meetingrequest/mrgui/mrfieldbuildercommon/src/cesmreditor.cpp
changeset 0 8466d47a6819
child 12 4ce476e64c59
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/meetingrequest/mrgui/mrfieldbuildercommon/src/cesmreditor.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,406 @@
+/*
+* Copyright (c) 2007-2009 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:  ESMR editor impl.
+*
+*/
+
+
+#include "emailtrace.h"
+#include <txtfrmat.h>
+#include <txtglobl.h>
+#include <txtrich.h>
+#include <gulfont.h>
+#include <eikenv.h>
+#include <avkon.hrh>
+
+#include "cesmreditor.h"
+#include "cesmrlayoutmgr.h"
+#include "esmrfieldbuilderdef.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CESMREditor::NewL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CESMREditor* CESMREditor::NewL( )
+    {
+    FUNC_LOG;
+    /*
+     Default parameters for edwin. Note that as the parent
+     is NULL, the edwin MUST be EOwnsWindow-type edwin.
+     */
+    return CESMREditor::NewL (
+		NULL, // parent
+		1, // number of lines
+		KTextLimit, // text limit
+		CEikEdwin::EResizable | CEikEdwin::EOwnsWindow );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::NewL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CESMREditor* CESMREditor::NewL(
+		const CCoeControl* aParent, TInt aNumberOfLines,
+        TInt aTextLimit, TInt aEdwinFlags )
+    {
+    FUNC_LOG;
+    CESMREditor* self = new (ELeave) CESMREditor();
+    CleanupStack::PushL ( self );
+    self->ConstructL ( aParent, aNumberOfLines, aTextLimit, aEdwinFlags );
+    CleanupStack::Pop ( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::~CESMREditor
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CESMREditor::~CESMREditor( )
+    {
+    FUNC_LOG;
+    delete iDefaultText;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::PositionChanged
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMREditor::PositionChanged( )
+    {
+    FUNC_LOG;
+    CTextView* view = TextView();
+    if ( view )
+        {
+        view->SetViewRect ( Rect() );
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::OfferKeyEventL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TKeyResponse CESMREditor::OfferKeyEventL(
+		const TKeyEvent& aKeyEvent,TEventCode aType )
+    {
+    FUNC_LOG;
+
+    TKeyResponse ret = CEikRichTextEditor::OfferKeyEventL(aKeyEvent, aType);
+
+    if ( aType == EEventKey )
+        {
+        TPoint firstRowExtra(0,RowHeight());
+        TextLayout()->DocPosToXyPosL( 0, firstRowExtra);
+        //firstRowExtra.iY
+        TPoint rel(PositionRelativeToScreen());
+        TPoint point(0,0);
+        TextLayout()->DocPosToXyPosL( CursorPos(), point);
+
+        // +1 because first line is zero
+        TInt currentLineNumber = TextLayout()->GetLineNumber( CursorPos() ) + 1;
+        TInt cursorLowerPosition = currentLineNumber * RowHeight();
+        TInt cursorUpperPosition = ( currentLineNumber -1 )* RowHeight();
+
+        if ( aKeyEvent.iCode == EKeyDownArrow && iObserver)
+            {
+            TPoint firstRowExtra(0,RowHeight());
+            TextLayout()->DocPosToXyPosL( 0, firstRowExtra);
+            TPoint cursorPos(0,0);
+            TextLayout()->DocPosToXyPosL( CursorPos(), cursorPos);
+            TInt edwinTlY = Position().iY;
+            TInt listHeight = iObserver->ListHeight();
+
+            // edwinTlY negative
+            if ( cursorLowerPosition > ( listHeight - edwinTlY )) 
+                {
+                iObserver->MoveListAreaUpL(RowHeight());
+                }
+            }
+        else if ( aKeyEvent.iCode == EKeyUpArrow && iObserver)
+            {
+            TPoint firstRowExtra(0,RowHeight());
+            TextLayout()->DocPosToXyPosL( 0, firstRowExtra);
+            TPoint cursorPos(0,0);
+            TextLayout()->DocPosToXyPosL( CursorPos(), cursorPos);
+            TInt hiddenHeight = Position().iY;
+            // upper corner of field not visible
+            if ( hiddenHeight < 0 )
+                {
+                if ( (cursorPos.iY - firstRowExtra.iY * 2) < (-hiddenHeight))
+                    {
+                    iObserver->MoveListAreaDownL(RowHeight());
+                    }
+                }
+            }
+        }
+
+
+    return ret;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::ClearSelectionAndSetTextL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMREditor::FocusChanged(TDrawNow aDrawNow)
+    {
+    FUNC_LOG;
+    CEikRichTextEditor::FocusChanged( aDrawNow );
+    TRAPD( error, TryToSetSelectionL() );
+    if ( error != KErrNone )
+        {
+        CEikonEnv::Static()->HandleError( error );// codescanner::eikonenvstatic
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::TryToSetSelectionL
+// ---------------------------------------------------------------------------
+//
+void CESMREditor::TryToSetSelectionL()
+    {
+    FUNC_LOG;
+    if ( IsFocused() )
+        {
+        // set selection to text if it is the default text
+        HBufC* text = GetTextInHBufL();
+        if ( text )
+            {
+            CleanupStack::PushL( text );
+            if ( iDefaultText->Compare( *text ) == KErrNone )
+                {
+                SetSelectionL(0, text->Length() );
+                }
+            CleanupStack::PopAndDestroy( text );
+            }
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::HandleEdwinEventL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMREditor::HandleEdwinEventL(
+		CEikEdwin* aEdwin,TEdwinEvent aEventType )
+    {
+    FUNC_LOG;
+    if ( aEdwin == this && aEventType == EEventNavigation && iObserver)
+        {
+        TInt curPos = CursorPos ();
+        TInt textLength = TextLength();
+        // Update viewarea scrolling in cases where the cursor location 
+        // is changed directly from bottom to upmost position or vise versa.
+        if ( CursorPos () == TextLength() )
+            {
+            // KErrNotFound as field id is interpret as focused field:
+            iObserver->ScrollItemVisible( KErrNotFound );
+            }
+        if ( CursorPos () == 0 )
+            {
+            // KErrNotFound as field id is interpret as focused field:
+            iObserver->ScrollItemVisible( KErrNotFound );
+            }
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::ClearSelectionAndSetTextL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMREditor::ClearSelectionAndSetTextL( const TDesC& aText )
+    {
+    FUNC_LOG;
+    ClearSelectionL();
+    SetCursorPosL(0, EFalse );
+    SetTextL( &aText );
+    SetCursorPosL(0, EFalse );
+    HandleTextChangedL();
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::SetFontL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMREditor::SetFontL( 
+		const CFont* aFont, CESMRLayoutManager* aLayout )
+    {
+    FUNC_LOG;
+    const CFont* font = aFont;
+    TFontSpec fontSpec = font->FontSpecInTwips();
+
+    CParaFormat* paraFormat = CParaFormat::NewLC();
+    TParaFormatMask paraFormatMask;
+    paraFormat->iLineSpacingControl = CParaFormat::ELineSpacingExactlyInPixels;
+
+    paraFormatMask.SetAttrib( EAttLineSpacing );
+    paraFormat->iHorizontalAlignment = CParaFormat::ELeftAlign;
+    paraFormatMask.SetAttrib( EAttAlignment );
+
+    TCharFormat charFormat;
+    TCharFormatMask formatMask;
+    charFormat.iFontSpec = fontSpec;
+
+    formatMask.SetAttrib( EAttFontTypeface );
+    formatMask.SetAttrib( EAttFontHeight );
+    formatMask.SetAttrib( EAttFontPosture );
+    formatMask.SetAttrib( EAttFontStrokeWeight );
+
+    charFormat.iFontPresentation.iTextColor = aLayout->NormalTextColor();
+    formatMask.SetAttrib( EAttColor );
+
+    CParaFormatLayer* paraFormatLayer =
+        CParaFormatLayer::NewL( paraFormat, paraFormatMask );
+    CleanupStack::PushL( paraFormatLayer );
+    CCharFormatLayer* charFormatLayer =
+        CCharFormatLayer::NewL( charFormat, formatMask );
+
+    SetParaFormatLayer( paraFormatLayer );
+    CleanupStack::Pop( paraFormatLayer );
+    CleanupStack::PopAndDestroy( paraFormat );
+    SetCharFormatLayer( charFormatLayer );
+    
+    // This forces CEikEdwin::OnReformatL to notify observer
+    // through HandleEdwinSizeEventL about changed size.
+    // It is notified only if linecount changes.
+    CEikEdwin::iNumberOfLines = 0;
+    CEikEdwin::FormatTextL();
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::CursorLinePos
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CESMREditor::CursorLinePos( ) const
+    {
+    FUNC_LOG;
+    return TextLayout()->GetLineNumber ( CursorPos ( ) );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::LineCount
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CESMREditor::LineCount( ) const
+    {
+    FUNC_LOG;
+    return TextLayout()->GetLineNumber ( TextLength ( ) );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::RowHeight
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CESMREditor::RowHeight()
+    {
+    FUNC_LOG;
+    TInt bandHeight = TextLayout()->BandHeight();
+    // Starts from zero, so let's increase the count by one.
+    TInt lineNumberCount = TextLayout()->GetLineNumber(TextLength()) + 1;
+
+    return ( bandHeight / lineNumberCount );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::CurrentLineNumber
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CESMREditor::CurrentLineNumber()
+    {
+    FUNC_LOG;
+    // first line is zero, let's increase it by one
+    return TextLayout()->GetLineNumber( CursorPos() ) + 1;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::LineCount
+// ---------------------------------------------------------------------------
+//
+EXPORT_C  void CESMREditor::SetDefaultTextL(
+        HBufC* aDefaultText ) // codescanner::nonconsthbufc
+    {
+    FUNC_LOG;
+    SetTextL( aDefaultText );
+    
+    if ( iDefaultText )
+        {
+        delete iDefaultText;
+        iDefaultText = NULL;
+        }
+    iDefaultText = aDefaultText;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::LineCount
+// ---------------------------------------------------------------------------
+//
+EXPORT_C const TDesC& CESMREditor::DefaultText()
+    {
+    FUNC_LOG;
+    return *iDefaultText;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::LineCount
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMREditor::SetListObserver( MESMRListObserver* aObserver )
+    {
+    FUNC_LOG;
+    iObserver = aObserver;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::CESMREditor
+// ---------------------------------------------------------------------------
+//
+CESMREditor::CESMREditor( )
+    {
+    FUNC_LOG;
+    // Do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CESMREditor::ConstructL(const CCoeControl* aParent, TInt aNumberOfLines,
+        TInt aTextLimit, TInt aEdwinFlags )
+    {
+    FUNC_LOG;
+    CEikRichTextEditor::ConstructL (aParent, aNumberOfLines, aTextLimit,
+            aEdwinFlags );
+
+    AddEdwinObserverL(this);
+
+    SetUpperFullFormattingLength( aTextLimit );
+
+    iLimitLength = aTextLimit;
+    
+    SetAlignment ( CESMRLayoutManager::IsMirrored ( ) ? EAknEditorAlignRight
+            : EAknEditorAlignLeft );
+    SetHighlightStyleL ( EEikEdwinHighlightLink );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMREditor::GetLimitLength
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CESMREditor::GetLimitLength() const
+	{
+    FUNC_LOG;
+	return iLimitLength;
+	}
+
+//EOF