Categories: Symbian C++ | UI | Code Examples

This page was last modified 11:36, 15 February 2008.

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Overview

This code snippet demonstrates how to add scrollbars to a rich text editor.

This snippet can be self-signed.

Header file

CEikRichTextEditor* iEditor;
CEikScrollBarFrame* iScrollBarFrame;

Source file

// Second phase construction.
void CClientAppView::ConstructL(const TRect& aRect)
    {
    // Create the rich text editor (iEditor)
    // (left out for brevity)
    
    // Create the scrollbar for the editor
    iScrollBarFrame = iEditor->CreateScrollBarFrameL();
    // Set horizontal scrollbar invisible (EOff) and vertical scrollbar
    // visible (EOn)
    iScrollBarFrame->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff,
        CEikScrollBarFrame::EOn);
    }

Note: Scrollbars are not included in the inner region of the editor. This must be taken into account when drawing the editor on the screen:

// Called whenever SetExtent(), SetSize(), SetRect(),
// SetCornerAndSize(), or SetExtentToWholeScreen() is
// called on the control.
void CAppView::SizeChanged()
    {
    TRect r = Rect();
    TInt scrollbarWidth = iEditor->ScrollBarFrame()->
        ScrollBarBreadth(CEikScrollBar::EVertical);
    TInt editorWidth = r.Width() - scrollbarWidth;
    TPoint upperLeftCorner = TPoint(0, 0);
    iEditor->SetExtent(upperLeftCorner, TSize(editorWidth, r.Height()));
    }