libreoffice/dbaccess/source/ui/control/ScrollHelper.cxx

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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dbui.hxx"

#ifndef DBAUI_SCROLLHELPER_HXX
#include "ScrollHelper.hxx"
#endif
#ifndef _TOOLS_DEBUG_HXX
#include <tools/debug.hxx>
#endif

#define LISTBOX_SCROLLING_AREA  12
namespace dbaui
{
DBG_NAME(OScrollHelper)

// -----------------------------------------------------------------------------


    OScrollHelper::OScrollHelper()
    {
        DBG_CTOR(OScrollHelper,NULL);
    }
    // -----------------------------------------------------------------------------
    OScrollHelper::~OScrollHelper()
    {

        DBG_DTOR(OScrollHelper,NULL);
    }
    // -----------------------------------------------------------------------------
    void OScrollHelper::scroll(const Point& _rPoint, const Size& _rOutputSize)
    {
        // Scrolling Areas
        Rectangle aScrollArea( Point(0, _rOutputSize.Height() - LISTBOX_SCROLLING_AREA),
                                     Size(_rOutputSize.Width(), LISTBOX_SCROLLING_AREA) );

        Link aToCall;
        // if pointer in bottom area begin scroll
        if( aScrollArea.IsInside(_rPoint) )
            aToCall = m_aUpScroll;
        else
        {
            aScrollArea.SetPos(Point(0,0));
            // if pointer in top area begin scroll
            if( aScrollArea.IsInside(_rPoint) )
                aToCall = m_aDownScroll;
        }
        if ( aToCall.IsSet() )
            aToCall.Call( NULL );
    }
    // -----------------------------------------------------------------------------
}
// -----------------------------------------------------------------------------