xref: /trunk/main/cppcanvas/source/wrapper/implbitmap.cxx (revision 25b11142)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



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

#include "implbitmap.hxx"
#include "implbitmapcanvas.hxx"

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <canvas/canvastools.hxx>


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

namespace cppcanvas
{

    namespace internal
    {

        ImplBitmap::ImplBitmap( const CanvasSharedPtr& 						rParentCanvas,
                                const uno::Reference< rendering::XBitmap >& rBitmap ) :
            CanvasGraphicHelper( rParentCanvas ),
            mxBitmap( rBitmap ),
            mpBitmapCanvas()
        {
            OSL_ENSURE( mxBitmap.is(), "ImplBitmap::ImplBitmap: no valid bitmap" );

            uno::Reference< rendering::XBitmapCanvas > xBitmapCanvas( rBitmap,
                                                                      uno::UNO_QUERY );
            if( xBitmapCanvas.is() )
                mpBitmapCanvas.reset( new ImplBitmapCanvas(
                                          uno::Reference< rendering::XBitmapCanvas >(rBitmap,
                                                                                     uno::UNO_QUERY) ) );
        }

        ImplBitmap::~ImplBitmap()
        {
        }

        bool ImplBitmap::draw() const
        {
            CanvasSharedPtr pCanvas( getCanvas() );

            OSL_ENSURE( pCanvas.get() != NULL &&
                        pCanvas->getUNOCanvas().is(),
                        "ImplBitmap::draw: invalid canvas" );

            if( pCanvas.get() == NULL ||
                !pCanvas->getUNOCanvas().is() )
            {
                return false;
            }

            // TODO(P1): implement caching
            pCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
                                                 pCanvas->getViewState(),
                                                 getRenderState() );

            return true;
        }

        bool ImplBitmap::drawAlphaModulated( double nAlphaModulation ) const
        {
            CanvasSharedPtr pCanvas( getCanvas() );

            OSL_ENSURE( pCanvas.get() != NULL &&
                        pCanvas->getUNOCanvas().is(),
                        "ImplBitmap::drawAlphaModulated(): invalid canvas" );

            if( pCanvas.get() == NULL ||
                !pCanvas->getUNOCanvas().is() )
            {
                return false;
            }

            rendering::RenderState aLocalState( getRenderState() );
            uno::Sequence<rendering::ARGBColor> aCol(1);
            aCol[0] = rendering::ARGBColor( nAlphaModulation, 1.0, 1.0, 1.0 );
            aLocalState.DeviceColor =
                pCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace()->convertFromARGB(aCol);

            // TODO(P1): implement caching
            pCanvas->getUNOCanvas()->drawBitmapModulated( mxBitmap,
                                                          pCanvas->getViewState(),
                                                          aLocalState );

            return true;
        }

        BitmapCanvasSharedPtr ImplBitmap::getBitmapCanvas() const
        {
            return mpBitmapCanvas;
        }

        uno::Reference< rendering::XBitmap > ImplBitmap::getUNOBitmap() const
        {
            return mxBitmap;
        }
    }
}