browserutilities/feedsengine/FeedsUI/Common/src/RichTextEditor.cpp
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browserutilities/feedsengine/FeedsUI/Common/src/RichTextEditor.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,102 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:  Specialization of CEikRichTextEditor. Needed for enabling view 
+*                by view scrolling.
+*
+*/
+
+
+
+#include <frmtlay.h>
+
+#include "FeedsViewMgr.hrh"
+#include "RichTextEditor.h"
+
+
+// -----------------------------------------------------------------------------
+// CRichTextEditor::GetNumberOfLines
+//
+// Returns the total number of formatted lines in this text.
+// -----------------------------------------------------------------------------
+//
+TInt CRichTextEditor::GetNumberOfLines()
+    {
+    return CEikEdwin::iLayout->NumFormattedLines();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CRichTextEditor::MoveCursorL
+//
+// Handles the view by view scrolling.
+// -----------------------------------------------------------------------------
+//
+void CRichTextEditor::MoveCursorL(TCursorPosition::TMovementType aMovement, TBool aSelect)
+    {
+    TInt numberOfLines(GetNumberOfLines());
+    TInt currentLine(GetLinePos(CursorPos()));
+    TInt targetLine(0);
+
+    switch(aMovement)
+        {
+        case TCursorPosition::EFPageDown:
+            targetLine = currentLine + KNumberOfLinesInRichTextEditor;
+    
+            if (targetLine < numberOfLines)
+                {
+                SetCursorPosL(Get1stCharInLine(numberOfLines), aSelect);
+                SetCursorPosL(Get1stCharInLine(targetLine), aSelect);
+                }
+            break;
+
+        case TCursorPosition::EFPageUp:
+            targetLine = currentLine - KNumberOfLinesInRichTextEditor;
+    
+            if (targetLine >= 0)
+                {
+                SetCursorPosL(0, aSelect);
+                SetCursorPosL(Get1stCharInLine(targetLine), aSelect);
+                }
+            break;
+
+        default:
+            break;
+        }
+    }
+
+
+// -----------------------------------------------------------------------------
+// CRichTextEditor::GetLinePos
+//
+// Returns the line number of a given char position.
+// -----------------------------------------------------------------------------
+//
+TInt CRichTextEditor::GetLinePos(TInt aPos) 
+    { 
+    return CEikEdwin::iLayout->GetLineNumber(aPos) + 1;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CRichTextEditor::Get1stCharInLine
+//
+// The 1st character in the given line.
+// -----------------------------------------------------------------------------
+//
+TInt CRichTextEditor::Get1stCharInLine(TInt aLinePos) 
+    {
+    return CEikEdwin::iLayout->FirstCharOnLine(aLinePos);
+    }
+
+