gdBDown.widthHint = iSize;
gdBDown.widthHint = iSize - 2;
    private void placeComponents()    {        // THE LAYOUT OF THIS COMPOSITE (FILLS EVERYTHING INSIDE IT)        FillLayout flMain = new FillLayout();        flMain.marginHeight = 0;        flMain.marginWidth = 0;        setLayout(flMain);        // THE LAYOUT OF THE OUTER COMPOSITE (THAT GROWS VERTICALLY BUT ANCHORS        // ITS CONTENT NORTH)        cmpContentOuter = new Composite(this, SWT.NONE);        GridLayout glContentOuter = new GridLayout();        glContentOuter.verticalSpacing = 0;        glContentOuter.horizontalSpacing = 0;        glContentOuter.marginHeight = 0;        glContentOuter.marginWidth = 0;        glContentOuter.numColumns = 1;        cmpContentOuter.setLayout(glContentOuter);        GridData gdContentOuter = new GridData(GridData.FILL_HORIZONTAL);        cmpContentOuter.setLayoutData(gdContentOuter);        // THE LAYOUT OF THE INNER COMPOSITE (ANCHORED NORTH AND ENCAPSULATES        // THE CANVAS + BUTTON)        cmpContentInner = new Composite(cmpContentOuter, SWT.BORDER);        GridLayout glContentInner = new GridLayout();        glContentInner.verticalSpacing = 0;        glContentInner.horizontalSpacing = 0;        glContentInner.marginHeight = 0;        glContentInner.marginWidth = 0;        glContentInner.numColumns = 2;        cmpContentInner.setLayout(glContentInner);        GridData gdContentInner = new GridData(GridData.FILL_HORIZONTAL);        cmpContentInner.setLayoutData(gdContentInner);        // THE CANVAS        cnvSelection = new LineCanvas(cmpContentInner, SWT.NONE, SWT.LINE_SOLID, 1);        GridData gdCNVSelection = new GridData(GridData.FILL_BOTH);        gdCNVSelection.heightHint = iSize;        cnvSelection.setLayoutData(gdCNVSelection);        cnvSelection.setLineWidth(iCurrentWidth);        cnvSelection.addMouseListener(this);        btnDown = new Button(cmpContentInner, SWT.ARROW | SWT.DOWN);        GridData gdBDown = new GridData(GridData.FILL);        gdBDown.verticalAlignment = GridData.BEGINNING;        gdBDown.widthHint = iSize;        gdBDown.heightHint = iSize;        btnDown.setLayoutData(gdBDown);        btnDown.addSelectionListener(this);    }