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libreoffice/canvas/source/vcl/canvascustomsprite.cxx

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/*************************************************************************
*
* $RCSfile: canvascustomsprite.cxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: thb $ $Date: 2004-03-18 10:38:40 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 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
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef INCLUDED_RTL_MATH_HXX
#include <rtl/math.hxx>
#endif
#include <canvas/canvastools.hxx>
#include "canvascustomsprite.hxx"
#include "spritecanvas.hxx"
#include "impltools.hxx"
#ifndef _SV_OUTDEV_HXX
#include <vcl/outdev.hxx>
#endif
#ifndef _SV_BITMAP_HXX
#include <vcl/bitmap.hxx>
#endif
#ifndef _SV_GDIMTF_HXX
#include <vcl/gdimtf.hxx>
#endif
#ifndef _SV_METAACT_HXX
#include <vcl/metaact.hxx>
#endif
#ifndef _VCL_CANVASTOOLS_HXX
#include <vcl/canvastools.hxx>
#endif
#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX
#include <basegfx/matrix/b2dhommatrix.hxx>
#endif
#ifndef _BGFX_POINT_B2DPOINT_HXX
#include <basegfx/point/b2dpoint.hxx>
#endif
#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX
#include <basegfx/tools/canvastools.hxx>
#endif
using namespace ::com::sun::star;
using namespace ::drafts::com::sun::star;
namespace vclcanvas
{
CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D& rSpriteSize,
const SpriteCanvas::ImplRef& rSpriteCanvas ) :
maVDev( new VirtualDevice( rSpriteCanvas->getOutDev() ) ), // create from reference device
maMaskVDev( new VirtualDevice( rSpriteCanvas->getOutDev(), 1) ), // create from reference device, bit depth: one
maCanvasHelper(),
mpSpriteCanvas( rSpriteCanvas ),
maPosition(0.0, 0.0),
maSize( ::vcl::unotools::sizeFromRealSize2D( rSpriteSize ) ),
mfAlpha(0.0),
mbActive( false )
{
// setup outdev sizes to total sprite size
maVDev->SetOutputSizePixel( maSize );
maMaskVDev->SetOutputSizePixel( maSize );
// set mask vdev drawmode, such that everything is painted
// black. That leaves us with a binary image, white for
// background, black for painted content
maMaskVDev->SetDrawMode( DRAWMODE_BLACKLINE | DRAWMODE_BLACKFILL | DRAWMODE_BLACKTEXT |
DRAWMODE_BLACKGRADIENT | DRAWMODE_BLACKBITMAP );
maCanvasHelper.setOutDev( *maVDev );
maCanvasHelper.setBackgroundOutDev( *maMaskVDev );
}
CanvasCustomSprite::~CanvasCustomSprite()
{
hide();
}
OutDevProvider::ImplRef CanvasCustomSprite::getImplRef()
{
return OutDevProvider::ImplRef::createFromQuery( this );
}
void SAL_CALL CanvasCustomSprite::drawPoint( const geometry::RealPoint2D& aPoint,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
// TODO: You might consider copying the SpriteCanvas
// background VDev behaviour here, notably the call to
// SpriteSurface::updateSprite(). But on the other hand, there
// are enough external cases that could mess that up (see
// comment on XCustomSprite), that we're maybe wise to keep it
// like this (i.e. invalidating the sprite content only once,
// for the call to getContentCanvas). This way, the inevitable
// errors will show up earlier, not only when multi-threading
// the updateScreen.
maCanvasHelper.drawPoint( aPoint, viewState, renderState, getImplRef() );
}
void SAL_CALL CanvasCustomSprite::drawLine( const geometry::RealPoint2D& aStartPoint, const geometry::RealPoint2D& aEndPoint, const rendering::ViewState& viewState, const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
maCanvasHelper.drawLine(aStartPoint, aEndPoint, viewState, renderState, getImplRef());
}
void SAL_CALL CanvasCustomSprite::drawBezier( const ::drafts::com::sun::star::geometry::RealBezierSegment2D& aBezierSegment,
const ::drafts::com::sun::star::geometry::RealPoint2D& aEndPoint,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
maCanvasHelper.drawBezier(aBezierSegment, aEndPoint, viewState, renderState, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::drawPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.drawPolyPolygon(xPolyPolygon, viewState, renderState, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::strokePolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState, const rendering::StrokeAttributes& strokeAttributes ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.strokePolyPolygon(xPolyPolygon, viewState, renderState, strokeAttributes, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::strokeTexturedPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState, const uno::Sequence< rendering::Texture >& textures, const rendering::StrokeAttributes& strokeAttributes ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.strokeTexturedPolyPolygon(xPolyPolygon, viewState, renderState, textures, strokeAttributes, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::strokeTextureMappedPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState, const uno::Sequence< rendering::Texture >& textures, const uno::Reference< geometry::XMapping2D >& xMapping, const rendering::StrokeAttributes& strokeAttributes ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.strokeTextureMappedPolyPolygon(xPolyPolygon, viewState, renderState, textures, xMapping, strokeAttributes, getImplRef());
}
uno::Reference< rendering::XPolyPolygon2D > SAL_CALL CanvasCustomSprite::queryStrokeShapes( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState, const rendering::StrokeAttributes& strokeAttributes ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.queryStrokeShapes(xPolyPolygon, viewState, renderState, strokeAttributes, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::fillPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.fillPolyPolygon(xPolyPolygon, viewState, renderState, getImplRef() );
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::fillTexturedPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState, const uno::Sequence< rendering::Texture >& textures ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.fillTexturedPolyPolygon(xPolyPolygon, viewState, renderState, textures, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::fillTextureMappedPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon, const rendering::ViewState& viewState, const rendering::RenderState& renderState, const uno::Sequence< rendering::Texture >& textures, const uno::Reference< geometry::XMapping2D >& xMapping ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.fillTextureMappedPolyPolygon(xPolyPolygon, viewState, renderState, textures, xMapping, getImplRef());
}
uno::Reference< rendering::XCanvasFont > SAL_CALL CanvasCustomSprite::queryFont( const rendering::FontRequest& fontRequest ) throw (uno::RuntimeException)
{
return maCanvasHelper.queryFont( fontRequest, getImplRef() );
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::drawText( const rendering::StringContext& text,
const uno::Reference< rendering::XCanvasFont >& xFont,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState,
sal_Int8 textDirection ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.drawText(text, xFont, viewState, renderState, textDirection, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::drawOffsettedText( const rendering::StringContext& text, const uno::Reference< rendering::XCanvasFont >& xFont, const uno::Sequence< double >& offsets, const rendering::ViewState& viewState, const rendering::RenderState& renderState, sal_Int8 textDirection ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.drawOffsettedText(text, xFont, offsets, viewState, renderState, textDirection, getImplRef());
}
uno::Reference< rendering::XCachedPrimitive > SAL_CALL CanvasCustomSprite::drawBitmap( const uno::Reference< rendering::XBitmap >& xBitmap, const rendering::ViewState& viewState, const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
return maCanvasHelper.drawBitmap(xBitmap, viewState, renderState, getImplRef());
}
uno::Reference< rendering::XGraphicDevice > SAL_CALL CanvasCustomSprite::getDevice() throw (uno::RuntimeException)
{
return maCanvasHelper.getDevice( getImplRef() );
}
void SAL_CALL CanvasCustomSprite::copyRect( const uno::Reference< rendering::XBitmapCanvas >& sourceCanvas,
const geometry::RealRectangle2D& sourceRect,
const rendering::ViewState& sourceViewState,
const rendering::RenderState& sourceRenderState,
const geometry::RealRectangle2D& destRect,
const rendering::ViewState& destViewState,
const rendering::RenderState& destRenderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
tools::LocalGuard aGuard;
}
void SAL_CALL CanvasCustomSprite::setAlpha( double alpha ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
::canvas::tools::checkRange(alpha, 0.0, 1.0);
if( alpha != mfAlpha )
{
if( mbActive )
mpSpriteCanvas->updateSprite( Sprite::ImplRef( this ),
::vcl::unotools::pointFromB2DPoint( maPosition ),
Rectangle( ::vcl::unotools::pointFromB2DPoint( maPosition ),
maSize ) );
mfAlpha = alpha;
}
}
void SAL_CALL CanvasCustomSprite::move( const ::drafts::com::sun::star::geometry::RealPoint2D& aNewPos,
const ::drafts::com::sun::star::rendering::ViewState& viewState,
const ::drafts::com::sun::star::rendering::RenderState& renderState ) throw (lang::IllegalArgumentException, uno::RuntimeException)
{
::basegfx::B2DHomMatrix aTransform;
::canvas::tools::mergeViewAndRenderTransform(aTransform,
viewState,
renderState);
::basegfx::B2DPoint aPoint( ::basegfx::unotools::b2DPointFromRealPoint2D(aNewPos) );
aPoint *= aTransform;
if( aPoint != maPosition )
{
if( mbActive )
mpSpriteCanvas->moveSprite( Sprite::ImplRef( this ),
::vcl::unotools::pointFromB2DPoint( maPosition ),
::vcl::unotools::pointFromB2DPoint( aPoint ) );
maPosition = aPoint;
}
}
void SAL_CALL CanvasCustomSprite::transform( const geometry::AffineMatrix2D& aTransformation ) throw (lang::IllegalArgumentException,
uno::RuntimeException)
{
// TODO
}
void SAL_CALL CanvasCustomSprite::clip( const uno::Reference< rendering::XPolyPolygon2D >& aClip,
const rendering::ViewState& viewState,
const rendering::RenderState& renderState ) throw (lang::IllegalArgumentException,
uno::RuntimeException)
{
// TODO
}
void SAL_CALL CanvasCustomSprite::show( ) throw (::com::sun::star::uno::RuntimeException)
{
if( !mbActive )
{
mpSpriteCanvas->showSprite( Sprite::ImplRef( this ) );
mbActive = true;
if( mfAlpha != 0.0 )
{
mpSpriteCanvas->updateSprite( Sprite::ImplRef( this ),
::vcl::unotools::pointFromB2DPoint( maPosition ),
Rectangle( ::vcl::unotools::pointFromB2DPoint( maPosition ),
maSize ) );
}
}
}
void SAL_CALL CanvasCustomSprite::hide( ) throw (::com::sun::star::uno::RuntimeException)
{
if( mbActive )
{
mpSpriteCanvas->hideSprite( Sprite::ImplRef( this ) );
mbActive = false;
if( mfAlpha != 0.0 )
{
mpSpriteCanvas->updateSprite( Sprite::ImplRef( this ),
::vcl::unotools::pointFromB2DPoint( maPosition ),
Rectangle( ::vcl::unotools::pointFromB2DPoint( maPosition ),
maSize ) );
}
}
}
uno::Reference< rendering::XCanvas > SAL_CALL CanvasCustomSprite::getContentCanvas() throw (uno::RuntimeException)
{
if( mbActive )
{
// the client is about to render into the sprite. Thus,
// potentially the whole sprite area has changed.
mpSpriteCanvas->updateSprite( Sprite::ImplRef( this ),
::vcl::unotools::pointFromB2DPoint( maPosition ),
Rectangle( ::vcl::unotools::pointFromB2DPoint( maPosition ),
maSize ) );
}
// TODO: Locking! Everywhere!
tools::LocalGuard aGuard;
// clear surface
maVDev->EnableMapMode( FALSE );
maVDev->SetFillColor( Color( COL_WHITE ) );
maVDev->SetLineColor();
maVDev->DrawRect( Rectangle(Point(), maSize) );
maMaskVDev->SetDrawMode( DRAWMODE_DEFAULT );
maMaskVDev->EnableMapMode( FALSE );
maMaskVDev->SetFillColor( Color( COL_WHITE ) );
maMaskVDev->SetLineColor();
maMaskVDev->DrawRect( Rectangle(Point(), maSize) );
maMaskVDev->SetDrawMode( DRAWMODE_BLACKLINE | DRAWMODE_BLACKFILL | DRAWMODE_BLACKTEXT |
DRAWMODE_BLACKGRADIENT | DRAWMODE_BLACKBITMAP );
return this;
}
#define SERVICE_NAME "drafts.com.sun.star.rendering.Canvas"
::rtl::OUString SAL_CALL CanvasCustomSprite::getImplementationName() throw( uno::RuntimeException )
{
return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( CANVASCUSTOMSPRITE_IMPLEMENTATION_NAME ) );
}
sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const ::rtl::OUString& ServiceName ) throw( uno::RuntimeException )
{
return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
}
uno::Sequence< ::rtl::OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames() throw( uno::RuntimeException )
{
uno::Sequence< ::rtl::OUString > aRet(1);
aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
return aRet;
}
// Sprite
void CanvasCustomSprite::redraw( OutputDevice& rTargetSurface ) const
{
redraw( rTargetSurface,
::vcl::unotools::pointFromB2DPoint( maPosition ) );
}
void CanvasCustomSprite::redraw( OutputDevice& rTargetSurface, const Point& rOutputPos ) const
{
tools::OutDevStateKeeper aStateKeeper(rTargetSurface);
const Point aEmptyPoint;
const Bitmap aMaskBitmap( maMaskVDev->GetBitmap( aEmptyPoint, maSize ) );
const Bitmap aContentBitmap( maVDev->GetBitmap( aEmptyPoint, maSize ) );
// TODO: Support for alpha-VDev
rTargetSurface.EnableMapMode( FALSE );
if( ::rtl::math::approxEqual(mfAlpha, 1.0) )
{
// copy to output
rTargetSurface.DrawBitmapEx( rOutputPos,
BitmapEx( aContentBitmap, aMaskBitmap ) );
}
else if( mfAlpha != 0.0 ) // TODO: be a little bit more tolerant here
{
// Only draw something if we're not completely transparent
BYTE nColor( static_cast<UINT8>(255.0*(1.0 - mfAlpha) + .5) );
AlphaMask aAlpha( maSize, &nColor );
// mask out fully transparent areas
aAlpha.Replace( aMaskBitmap, 255 );
// alpha-blend to output
rTargetSurface.DrawBitmapEx( rOutputPos,
BitmapEx( aContentBitmap, aAlpha ) );
}
}
::basegfx::B2DSize CanvasCustomSprite::getSize() const
{
// TODO: Use AW's wrappers once resynced
return ::basegfx::B2DSize( maSize.Width(),
maSize.Height() );
}
// OutDevProvider
::OutputDevice& CanvasCustomSprite::getOutDev()
{
return *maVDev;
}
const ::OutputDevice& CanvasCustomSprite::getOutDev() const
{
return *maVDev;
}
}