libreoffice/canvas/source/cairo/cairo_spritecanvas.cxx

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 * Copyright 2008 by Sun Microsystems, Inc.
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 * OpenOffice.org - a multi-platform office productivity suite
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 * $RCSfile: cairo_spritecanvas.cxx,v $
 * $Revision: 1.11 $
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// 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 <tools/diagnose_ex.h>

#include <osl/mutex.hxx>

#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/NoSupportException.hpp>

#include <toolkit/helper/vclunohelper.hxx>

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <basegfx/numeric/ftools.hxx>

#include "cairo_spritecanvas.hxx"

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

namespace cairocanvas
{
    SpriteCanvas::SpriteCanvas( const uno::Sequence< uno::Any >&                aArguments,
                                const uno::Reference< uno::XComponentContext >& rxContext ) :
        maArguments(aArguments),
        mxComponentContext( rxContext )
    {
    }

    void SpriteCanvas::initialize()
    {
        VERBOSE_TRACE("CairoSpriteCanvas created %p\n", this);

        // #i64742# Only call initialize when not in probe mode
        if( maArguments.getLength() == 0 )
            return;

        /* maArguments:
           0: ptr to creating instance (Window or VirtualDevice)
           1: SystemEnvData as a streamed Any (or empty for VirtualDevice)
           2: current bounds of creating instance
           3: bool, denoting always on top state for Window (always false for VirtualDevice)
           4: XWindow for creating Window (or empty for VirtualDevice)
           5: SystemGraphicsData as a streamed Any
         */
        ENSURE_ARG_OR_THROW( maArguments.getLength() >= 4 &&
                             maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER &&
                             maArguments[4].getValueTypeClass() == uno::TypeClass_INTERFACE,
                             "CairoSpriteCanvas::initialize: wrong number of arguments, or wrong types" );

        awt::Rectangle aRect;
        maArguments[2] >>= aRect;

        sal_Bool bIsFullscreen( sal_False );
        maArguments[3] >>= bIsFullscreen;

        uno::Reference< awt::XWindow > xParentWindow;
        maArguments[4] >>= xParentWindow;

        Window* pParentWindow = VCLUnoHelper::GetWindow(xParentWindow);
        if( !pParentWindow )
            throw lang::NoSupportException(
                ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
                                     "Parent window not VCL window, or canvas out-of-process!")),
                NULL);

        bool bHasXRender = IsCairoWorking(pParentWindow);
        ENSURE_ARG_OR_THROW( bHasXRender == true,
                             "CairoSpriteCanvas::SpriteCanvas: No RENDER extension" );

        Size aPixelSize( pParentWindow->GetOutputSizePixel() );
        const ::basegfx::B2ISize aSize( aPixelSize.Width(),
                                        aPixelSize.Height() );

        ENSURE_ARG_OR_THROW( pParentWindow != NULL,
                             "CairoSpriteCanvas::initialize: invalid Window pointer" );

        // setup helper
        maDeviceHelper.init( *pParentWindow,
                             *this,
                             aSize,
                             bIsFullscreen );

        setWindow(uno::Reference<awt::XWindow2>(xParentWindow, uno::UNO_QUERY_THROW));

        maCanvasHelper.init( maRedrawManager,
                             *this,
                             aSize );

        maArguments.realloc(0);
    }

    void SAL_CALL SpriteCanvas::disposing()
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        mxComponentContext.clear();

        // forward to parent
        SpriteCanvasBaseT::disposing();
    }

    ::sal_Bool SAL_CALL SpriteCanvas::showBuffer( ::sal_Bool bUpdateAll ) throw (uno::RuntimeException)
    {
        return updateScreen( bUpdateAll );
    }

    ::sal_Bool SAL_CALL SpriteCanvas::switchBuffer( ::sal_Bool bUpdateAll ) throw (uno::RuntimeException)
    {
        return updateScreen( bUpdateAll );
    }

    sal_Bool SAL_CALL SpriteCanvas::updateScreen( sal_Bool bUpdateAll ) throw (uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        // avoid repaints on hidden window (hidden: not mapped to
        // screen). Return failure, since the screen really has _not_
        // been updated (caller should try again later)
        return !mbIsVisible ? false : maCanvasHelper.updateScreen(
            ::basegfx::unotools::b2IRectangleFromAwtRectangle(maBounds),
            bUpdateAll,
            mbSurfaceDirty);
    }

    ::rtl::OUString SAL_CALL SpriteCanvas::getServiceName(  ) throw (uno::RuntimeException)
    {
        return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( SPRITECANVAS_SERVICE_NAME ) );
    }

    SurfaceSharedPtr SpriteCanvas::getSurface()
    {
        return maDeviceHelper.getBufferSurface();
    }

    SurfaceSharedPtr SpriteCanvas::createSurface( const ::basegfx::B2ISize& rSize, Content aContent )
    {
        return maDeviceHelper.createSurface( rSize, aContent );
    }

    SurfaceSharedPtr SpriteCanvas::createSurface( ::Bitmap& rBitmap )
    {
        BitmapSystemData aData;
        if( rBitmap.GetSystemData( aData ) ) {
            const Size& rSize = rBitmap.GetSizePixel();

            return maDeviceHelper.createSurface( aData, rSize );
        }

        return SurfaceSharedPtr();
    }

    SurfaceSharedPtr SpriteCanvas::changeSurface( bool, bool )
    {
        // non-modifiable surface here
        return SurfaceSharedPtr();
    }

    OutputDevice* SpriteCanvas::getOutputDevice()
    {
        return maDeviceHelper.getOutputDevice();
    }

    SurfaceSharedPtr SpriteCanvas::getBufferSurface()
    {
        return maDeviceHelper.getBufferSurface();
    }

    SurfaceSharedPtr SpriteCanvas::getWindowSurface()
    {
        return maDeviceHelper.getWindowSurface();
    }

    const ::basegfx::B2ISize& SpriteCanvas::getSizePixel()
    {
        return maDeviceHelper.getSizePixel();
    }

    void SpriteCanvas::setSizePixel( const ::basegfx::B2ISize& rSize )
    {
        maCanvasHelper.setSize( rSize );
        // re-set background surface, in case it needed recreation
        maCanvasHelper.setSurface( maDeviceHelper.getBufferSurface(),
                                   false );
    }

    void SpriteCanvas::flush()
    {
        maDeviceHelper.flush();
    }

    bool SpriteCanvas::repaint( const SurfaceSharedPtr&       pSurface,
                                const rendering::ViewState&   viewState,
                                const rendering::RenderState& renderState )
    {
        return maCanvasHelper.repaint( pSurface, viewState, renderState );
    }
}