libreoffice/canvas/source/null/null_devicehelper.cxx

/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: null_devicehelper.cxx,v $
 *
 *  $Revision: 1.4 $
 *
 *  last change: $Author: obo $ $Date: 2006-09-17 03:23:32 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

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

#include <canvas/debug.hxx>
#include <canvas/verbosetrace.hxx>
#include <canvas/canvastools.hxx>
#include <canvas/base/linepolypolygonbase.hxx>

#include <osl/mutex.hxx>
#include <cppuhelper/compbase1.hxx>

#include <com/sun/star/lang/NoSupportException.hpp>

#include <basegfx/tools/canvastools.hxx>

#include "null_spritecanvas.hxx"
#include "null_canvasbitmap.hxx"
#include "null_devicehelper.hxx"


using namespace ::com::sun::star;

namespace nullcanvas
{
    DeviceHelper::DeviceHelper() :
        mpSpriteCanvas( NULL ),
        maSize(),
        mbFullScreen(false)
    {
    }

    void DeviceHelper::init( SpriteCanvas&              rSpriteCanvas,
                             const ::basegfx::B2ISize&  rSize,
                             bool                       bFullscreen )
    {
        mpSpriteCanvas = &rSpriteCanvas;
        maSize = rSize;
        mbFullScreen = bFullscreen;
    }

    void DeviceHelper::disposing()
    {
        // release all references
        mpSpriteCanvas = NULL;
    }

    geometry::RealSize2D DeviceHelper::getPhysicalResolution()
    {
        return geometry::RealSize2D( 75, 75 );
    }

    geometry::RealSize2D DeviceHelper::getPhysicalSize()
    {
        return geometry::RealSize2D( 210, 280 );
    }

    uno::Reference< rendering::XLinePolyPolygon2D > DeviceHelper::createCompatibleLinePolyPolygon(
        const uno::Reference< rendering::XGraphicDevice >&              /*rDevice*/,
        const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >&  points )
    {
        // disposed?
        if( !mpSpriteCanvas )
            return uno::Reference< rendering::XLinePolyPolygon2D >(); // we're disposed

        return uno::Reference< rendering::XLinePolyPolygon2D >(
            new ::canvas::LinePolyPolygonBase(
                ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence( points ) ) );
    }

    uno::Reference< rendering::XBezierPolyPolygon2D > DeviceHelper::createCompatibleBezierPolyPolygon(
        const uno::Reference< rendering::XGraphicDevice >&                      /*rDevice*/,
        const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >&  points )
    {
        // disposed?
        if( !mpSpriteCanvas )
            return uno::Reference< rendering::XBezierPolyPolygon2D >(); // we're disposed

        return uno::Reference< rendering::XBezierPolyPolygon2D >(
            new ::canvas::LinePolyPolygonBase(
                ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence( points ) ) );
    }

    uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleBitmap(
        const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
        const geometry::IntegerSize2D&                      size )
    {
        // disposed?
        if( !mpSpriteCanvas )
            return uno::Reference< rendering::XBitmap >(); // we're disposed

        return uno::Reference< rendering::XBitmap >(
            new CanvasBitmap(
                ::basegfx::unotools::b2ISizeFromIntegerSize2D( size ),
                mpSpriteCanvas,
                false ));
    }

    uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileBitmap(
        const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
        const geometry::IntegerSize2D&                      /*size*/ )
    {
        return uno::Reference< rendering::XVolatileBitmap >();
    }

    uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleAlphaBitmap(
        const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
        const geometry::IntegerSize2D&                      size )
    {
        // disposed?
        if( !mpSpriteCanvas )
            return uno::Reference< rendering::XBitmap >(); // we're disposed

        return uno::Reference< rendering::XBitmap >(
            new CanvasBitmap(
                ::basegfx::unotools::b2ISizeFromIntegerSize2D( size ),
                mpSpriteCanvas,
                true ));
    }

    uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileAlphaBitmap(
        const uno::Reference< rendering::XGraphicDevice >&  /*rDevice*/,
        const geometry::IntegerSize2D&                      /*size*/ )
    {
        return uno::Reference< rendering::XVolatileBitmap >();
    }

    sal_Bool DeviceHelper::hasFullScreenMode()
    {
        // TODO(F3): offer fullscreen mode the XCanvas way
        return false;
    }

    sal_Bool DeviceHelper::enterFullScreenMode( sal_Bool /*bEnter*/ )
    {
        // TODO(F3): offer fullscreen mode the XCanvas way
        return false;
    }

    ::sal_Int32 DeviceHelper::createBuffers( ::sal_Int32 /*nBuffers*/ )
    {
        // TODO(F3): implement XBufferStrategy interface. For now, we
        // _always_ will have exactly one backbuffer
        return 1;
    }

    void DeviceHelper::destroyBuffers()
    {
        // TODO(F3): implement XBufferStrategy interface. For now, we
        // _always_ will have exactly one backbuffer
    }

    ::sal_Bool DeviceHelper::showBuffer( ::sal_Bool bUpdateAll )
    {
        // forward to sprite canvas helper
        if( !mpSpriteCanvas )
            return false;

        return mpSpriteCanvas->updateScreen( bUpdateAll );
    }

    ::sal_Bool DeviceHelper::switchBuffer( ::sal_Bool bUpdateAll )
    {
        // no difference for VCL canvas
        return showBuffer( bUpdateAll );
    }

    uno::Any DeviceHelper::getDeviceHandle() const
    {
        return uno::Any();
    }

    uno::Any DeviceHelper::getSurfaceHandle() const
    {
        return uno::Any();
    }

    void DeviceHelper::notifySizeUpdate( const awt::Rectangle& /*rBounds*/ )
    {
        // TODO
    }

    void DeviceHelper::dumpScreenContent() const
    {
        OSL_TRACE( "%s\n",
                   BOOST_CURRENT_FUNCTION );
    }
}