1432 lines
62 KiB
C++
1432 lines
62 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <canvas/debug.hxx>
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#include <tools/diagnose_ex.h>
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#include <rtl/math.hxx>
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#include <com/sun/star/rendering/CompositeOperation.hpp>
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#include <com/sun/star/util/Endianness.hpp>
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#include <com/sun/star/rendering/TextDirection.hpp>
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#include <com/sun/star/rendering/TexturingMode.hpp>
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#include <com/sun/star/rendering/PathCapType.hpp>
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#include <com/sun/star/rendering/PathJoinType.hpp>
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#include <tools/poly.hxx>
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#include <vcl/window.hxx>
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#include <vcl/bitmapex.hxx>
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#include <vcl/bmpacc.hxx>
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#include <vcl/canvastools.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/range/b2drectangle.hxx>
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#include <basegfx/point/b2dpoint.hxx>
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#include <basegfx/vector/b2dsize.hxx>
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#include <basegfx/polygon/b2dpolygon.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <basegfx/polygon/b2dpolypolygontools.hxx>
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#include <basegfx/polygon/b2dlinegeometry.hxx>
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#include <basegfx/tools/canvastools.hxx>
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#include <basegfx/numeric/ftools.hxx>
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#include <utility>
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#include <comphelper/sequence.hxx>
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#include <canvas/canvastools.hxx>
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#include "textlayout.hxx"
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#include "canvashelper.hxx"
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#include "canvasbitmap.hxx"
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#include "impltools.hxx"
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#include "canvasfont.hxx"
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using namespace ::com::sun::star;
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namespace vclcanvas
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{
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namespace
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{
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basegfx::B2DLineJoin b2DJoineFromJoin( sal_Int8 nJoinType )
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{
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switch( nJoinType )
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{
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case rendering::PathJoinType::NONE:
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return basegfx::B2DLINEJOIN_NONE;
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case rendering::PathJoinType::MITER:
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return basegfx::B2DLINEJOIN_MITER;
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case rendering::PathJoinType::ROUND:
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return basegfx::B2DLINEJOIN_ROUND;
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case rendering::PathJoinType::BEVEL:
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return basegfx::B2DLINEJOIN_BEVEL;
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default:
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ENSURE_OR_THROW( false,
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"b2DJoineFromJoin(): Unexpected join type" );
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}
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return basegfx::B2DLINEJOIN_NONE;
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}
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}
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CanvasHelper::CanvasHelper() :
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mpDevice(),
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mpProtectedOutDev(),
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mpOutDev(),
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mp2ndOutDev(),
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mbHaveAlpha( false )
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{
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}
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void CanvasHelper::disposing()
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{
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mpDevice = NULL;
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mpProtectedOutDev.reset();
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mpOutDev.reset();
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mp2ndOutDev.reset();
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}
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void CanvasHelper::init( rendering::XGraphicDevice& rDevice,
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const OutDevProviderSharedPtr& rOutDev,
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bool bProtect,
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bool bHaveAlpha )
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{
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// cast away const, need to change refcount (as this is
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// ~invisible to client code, still logically const)
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mpDevice = &rDevice;
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mbHaveAlpha = bHaveAlpha;
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setOutDev( rOutDev, bProtect );
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}
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void CanvasHelper::setOutDev( const OutDevProviderSharedPtr& rOutDev,
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bool bProtect )
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{
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if( bProtect )
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mpProtectedOutDev = rOutDev;
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else
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mpProtectedOutDev.reset();
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mpOutDev = rOutDev;
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}
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void CanvasHelper::setBackgroundOutDev( const OutDevProviderSharedPtr& rOutDev )
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{
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mp2ndOutDev = rOutDev;
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mp2ndOutDev->getOutDev().EnableMapMode( sal_False );
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}
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void CanvasHelper::clear()
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{
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// are we disposed?
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if( mpOutDev )
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{
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OutputDevice& rOutDev( mpOutDev->getOutDev() );
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tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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rOutDev.EnableMapMode( sal_False );
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rOutDev.SetLineColor( COL_WHITE );
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rOutDev.SetFillColor( COL_WHITE );
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rOutDev.SetClipRegion();
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rOutDev.DrawRect( Rectangle( Point(),
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rOutDev.GetOutputSizePixel()) );
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if( mp2ndOutDev )
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{
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OutputDevice& rOutDev2( mp2ndOutDev->getOutDev() );
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rOutDev2.SetDrawMode( DRAWMODE_DEFAULT );
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rOutDev2.EnableMapMode( sal_False );
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rOutDev2.SetLineColor( COL_WHITE );
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rOutDev2.SetFillColor( COL_WHITE );
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rOutDev2.SetClipRegion();
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rOutDev2.DrawRect( Rectangle( Point(),
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rOutDev2.GetOutputSizePixel()) );
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rOutDev2.SetDrawMode( DRAWMODE_BLACKLINE | DRAWMODE_BLACKFILL | DRAWMODE_BLACKTEXT |
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DRAWMODE_BLACKGRADIENT | DRAWMODE_BLACKBITMAP );
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}
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}
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}
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void CanvasHelper::drawPoint( const rendering::XCanvas* ,
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const geometry::RealPoint2D& aPoint,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState )
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{
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// are we disposed?
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if( mpOutDev )
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{
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// nope, render
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tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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setupOutDevState( viewState, renderState, LINE_COLOR );
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const Point aOutPoint( tools::mapRealPoint2D( aPoint,
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viewState, renderState ) );
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// TODO(F1): alpha
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mpOutDev->getOutDev().DrawPixel( aOutPoint );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawPixel( aOutPoint );
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}
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}
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void CanvasHelper::drawLine( const rendering::XCanvas* ,
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const geometry::RealPoint2D& aStartRealPoint2D,
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const geometry::RealPoint2D& aEndRealPoint2D,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState )
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{
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// are we disposed?
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if( mpOutDev )
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{
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// nope, render
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tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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setupOutDevState( viewState, renderState, LINE_COLOR );
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const Point aStartPoint( tools::mapRealPoint2D( aStartRealPoint2D,
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viewState, renderState ) );
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const Point aEndPoint( tools::mapRealPoint2D( aEndRealPoint2D,
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viewState, renderState ) );
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// TODO(F2): alpha
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mpOutDev->getOutDev().DrawLine( aStartPoint, aEndPoint );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawLine( aStartPoint, aEndPoint );
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}
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}
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void CanvasHelper::drawBezier( const rendering::XCanvas* ,
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const geometry::RealBezierSegment2D& aBezierSegment,
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const geometry::RealPoint2D& _aEndPoint,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState )
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{
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if( mpOutDev )
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{
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tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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setupOutDevState( viewState, renderState, LINE_COLOR );
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const Point& rStartPoint( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.Px,
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aBezierSegment.Py),
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viewState, renderState ) );
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const Point& rCtrlPoint1( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.C1x,
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aBezierSegment.C1y),
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viewState, renderState ) );
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const Point& rCtrlPoint2( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.C2x,
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aBezierSegment.C2y),
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viewState, renderState ) );
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const Point& rEndPoint( tools::mapRealPoint2D( _aEndPoint,
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viewState, renderState ) );
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::Polygon aPoly(4);
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aPoly.SetPoint( rStartPoint, 0 );
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aPoly.SetFlags( 0, POLY_NORMAL );
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aPoly.SetPoint( rCtrlPoint1, 1 );
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aPoly.SetFlags( 1, POLY_CONTROL );
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aPoly.SetPoint( rCtrlPoint2, 2 );
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aPoly.SetFlags( 2, POLY_CONTROL );
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aPoly.SetPoint( rEndPoint, 3 );
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aPoly.SetFlags( 3, POLY_NORMAL );
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// TODO(F2): alpha
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mpOutDev->getOutDev().DrawPolygon( aPoly );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawPolygon( aPoly );
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}
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}
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uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawPolyPolygon( const rendering::XCanvas* ,
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const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState )
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{
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ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
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"polygon is NULL");
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if( mpOutDev )
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{
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tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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setupOutDevState( viewState, renderState, LINE_COLOR );
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const ::basegfx::B2DPolyPolygon& rPolyPoly(
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::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
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const PolyPolygon aPolyPoly( tools::mapPolyPolygon( rPolyPoly, viewState, renderState ) );
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if( rPolyPoly.isClosed() )
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{
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mpOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
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}
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else
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{
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// mixed open/closed state. Cannot render open polygon
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// via DrawPolyPolygon(), since that implicitley
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// closed every polygon. OTOH, no need to distinguish
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// further and render closed polygons via
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// DrawPolygon(), and open ones via DrawPolyLine():
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// closed polygons will simply already contain the
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// closing segment.
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sal_uInt16 nSize( aPolyPoly.Count() );
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for( sal_uInt16 i=0; i<nSize; ++i )
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{
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mpOutDev->getOutDev().DrawPolyLine( aPolyPoly[i] );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawPolyLine( aPolyPoly[i] );
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}
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}
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}
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// TODO(P1): Provide caching here.
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return uno::Reference< rendering::XCachedPrimitive >(NULL);
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}
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uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokePolyPolygon( const rendering::XCanvas* ,
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const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState,
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const rendering::StrokeAttributes& strokeAttributes )
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{
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ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
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"polygon is NULL");
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if( mpOutDev )
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{
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tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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::basegfx::B2DHomMatrix aMatrix;
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::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
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::basegfx::B2DSize aLinePixelSize(strokeAttributes.StrokeWidth,
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strokeAttributes.StrokeWidth);
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aLinePixelSize *= aMatrix;
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::basegfx::B2DPolyPolygon aPolyPoly(
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::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
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if( aPolyPoly.areControlPointsUsed() )
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{
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// AW: Not needed for ApplyLineDashing anymore; should be removed
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aPolyPoly = ::basegfx::tools::adaptiveSubdivideByAngle(aPolyPoly);
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}
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// apply dashing, if any
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if( strokeAttributes.DashArray.getLength() )
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{
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const ::std::vector<double>& aDashArray(
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::comphelper::sequenceToContainer< ::std::vector<double> >(strokeAttributes.DashArray) );
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::basegfx::B2DPolyPolygon aDashedPolyPoly;
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for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
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{
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// AW: new interface; You may also get gaps in the same run now
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basegfx::tools::applyLineDashing(aPolyPoly.getB2DPolygon(i), aDashArray, &aDashedPolyPoly);
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//aDashedPolyPoly.append(
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// ::basegfx::tools::applyLineDashing( aPolyPoly.getB2DPolygon(i),
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// aDashArray ) );
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}
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aPolyPoly = aDashedPolyPoly;
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}
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::basegfx::B2DPolyPolygon aStrokedPolyPoly;
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if( aLinePixelSize.getLength() < 1.42 )
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{
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// line width < 1.0 in device pixel, thus, output as a
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// simple hairline poly-polygon
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setupOutDevState( viewState, renderState, LINE_COLOR );
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aStrokedPolyPoly = aPolyPoly;
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}
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else
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{
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// render as a 'thick' line
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setupOutDevState( viewState, renderState, FILL_COLOR );
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for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
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{
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// TODO(F2): Use MiterLimit from StrokeAttributes,
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// need to convert it here to angle.
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// TODO(F2): Also use Cap settings from
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// StrokeAttributes, the
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// createAreaGeometryForLineStartEnd() method does not
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// seem to fit very well here
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// AW: New interface, will create bezier polygons now
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aStrokedPolyPoly.append(basegfx::tools::createAreaGeometry(
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aPolyPoly.getB2DPolygon(i), strokeAttributes.StrokeWidth*0.5, b2DJoineFromJoin(strokeAttributes.JoinType)));
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//aStrokedPolyPoly.append(
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// ::basegfx::tools::createAreaGeometryForPolygon( aPolyPoly.getB2DPolygon(i),
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// strokeAttributes.StrokeWidth*0.5,
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// b2DJoineFromJoin(strokeAttributes.JoinType) ) );
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}
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}
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// transform only _now_, all the StrokeAttributes are in
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// user coordinates.
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aStrokedPolyPoly.transform( aMatrix );
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const PolyPolygon aVCLPolyPoly( aStrokedPolyPoly );
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// TODO(F2): When using alpha here, must handle that via
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// temporary surface or somesuch.
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// Note: the generated stroke poly-polygon is NOT free of
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// self-intersections. Therefore, if we would render it
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// via OutDev::DrawPolyPolygon(), on/off fill would
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// generate off areas on those self-intersections.
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sal_uInt16 nSize( aVCLPolyPoly.Count() );
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for( sal_uInt16 i=0; i<nSize; ++i )
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{
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if( aStrokedPolyPoly.getB2DPolygon( i ).isClosed() ) {
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mpOutDev->getOutDev().DrawPolygon( aVCLPolyPoly[i] );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawPolygon( aVCLPolyPoly[i] );
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} else {
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const sal_uInt16 nPolySize = aVCLPolyPoly[i].GetSize();
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if( nPolySize ) {
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Point rPrevPoint = aVCLPolyPoly[i].GetPoint( 0 );
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Point rPoint;
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for( sal_uInt16 j=1; j<nPolySize; j++ ) {
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rPoint = aVCLPolyPoly[i].GetPoint( j );
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mpOutDev->getOutDev().DrawLine( rPrevPoint, rPoint );
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if( mp2ndOutDev )
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mp2ndOutDev->getOutDev().DrawLine( rPrevPoint, rPoint );
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rPrevPoint = rPoint;
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}
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}
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}
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}
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}
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// TODO(P1): Provide caching here.
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return uno::Reference< rendering::XCachedPrimitive >(NULL);
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}
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uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTexturedPolyPolygon( const rendering::XCanvas* ,
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const uno::Reference< rendering::XPolyPolygon2D >& ,
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const rendering::ViewState& ,
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const rendering::RenderState& ,
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const uno::Sequence< rendering::Texture >& ,
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const rendering::StrokeAttributes& )
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{
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return uno::Reference< rendering::XCachedPrimitive >(NULL);
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}
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uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTextureMappedPolyPolygon( const rendering::XCanvas* ,
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const uno::Reference< rendering::XPolyPolygon2D >& ,
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const rendering::ViewState& ,
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const rendering::RenderState& ,
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const uno::Sequence< rendering::Texture >& ,
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const uno::Reference< geometry::XMapping2D >& ,
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const rendering::StrokeAttributes& )
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{
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return uno::Reference< rendering::XCachedPrimitive >(NULL);
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}
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uno::Reference< rendering::XPolyPolygon2D > CanvasHelper::queryStrokeShapes( const rendering::XCanvas* ,
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const uno::Reference< rendering::XPolyPolygon2D >& ,
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const rendering::ViewState& ,
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const rendering::RenderState& ,
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const rendering::StrokeAttributes& )
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{
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return uno::Reference< rendering::XPolyPolygon2D >(NULL);
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}
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uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillPolyPolygon( const rendering::XCanvas* ,
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const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState )
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|
{
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ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
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|
"polygon is NULL");
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|
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if( mpOutDev )
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|
{
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|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
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|
|
const int nTransparency( setupOutDevState( viewState, renderState, FILL_COLOR ) );
|
|
::basegfx::B2DPolyPolygon aB2DPolyPoly(
|
|
::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
|
|
aB2DPolyPoly.setClosed(true); // ensure closed poly, otherwise VCL does not fill
|
|
const PolyPolygon aPolyPoly( tools::mapPolyPolygon(
|
|
aB2DPolyPoly,
|
|
viewState, renderState ) );
|
|
const bool bSourceAlpha( renderState.CompositeOperation == rendering::CompositeOperation::SOURCE );
|
|
if( !nTransparency || bSourceAlpha )
|
|
{
|
|
mpOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
|
|
}
|
|
else
|
|
{
|
|
const int nTransPercent( (nTransparency * 100 + 128) / 255 ); // normal rounding, no truncation here
|
|
mpOutDev->getOutDev().DrawTransparent( aPolyPoly, (sal_uInt16)nTransPercent );
|
|
}
|
|
|
|
if( mp2ndOutDev )
|
|
{
|
|
// HACK. Normally, CanvasHelper does not care about
|
|
// actually what mp2ndOutDev is... well, here we do &
|
|
// assume a 1bpp target - everything beyond 97%
|
|
// transparency is fully transparent
|
|
if( nTransparency < 253 )
|
|
{
|
|
mp2ndOutDev->getOutDev().SetFillColor( COL_BLACK );
|
|
mp2ndOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO(P1): Provide caching here.
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL);
|
|
}
|
|
|
|
uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTextureMappedPolyPolygon( const rendering::XCanvas* ,
|
|
const uno::Reference< rendering::XPolyPolygon2D >& ,
|
|
const rendering::ViewState& ,
|
|
const rendering::RenderState& ,
|
|
const uno::Sequence< rendering::Texture >& ,
|
|
const uno::Reference< geometry::XMapping2D >& )
|
|
{
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL);
|
|
}
|
|
|
|
uno::Reference< rendering::XCanvasFont > CanvasHelper::createFont( const rendering::XCanvas* ,
|
|
const rendering::FontRequest& fontRequest,
|
|
const uno::Sequence< beans::PropertyValue >& extraFontProperties,
|
|
const geometry::Matrix2D& fontMatrix )
|
|
{
|
|
if( mpOutDev && mpDevice )
|
|
{
|
|
// TODO(F2): font properties and font matrix
|
|
return uno::Reference< rendering::XCanvasFont >(
|
|
new CanvasFont(fontRequest, extraFontProperties, fontMatrix,
|
|
*mpDevice, mpOutDev) );
|
|
}
|
|
|
|
return uno::Reference< rendering::XCanvasFont >();
|
|
}
|
|
|
|
uno::Sequence< rendering::FontInfo > CanvasHelper::queryAvailableFonts( const rendering::XCanvas* ,
|
|
const rendering::FontInfo& ,
|
|
const uno::Sequence< beans::PropertyValue >& )
|
|
{
|
|
// TODO(F2)
|
|
return uno::Sequence< rendering::FontInfo >();
|
|
}
|
|
|
|
uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawText( const rendering::XCanvas* ,
|
|
const rendering::StringContext& text,
|
|
const uno::Reference< rendering::XCanvasFont >& xFont,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState,
|
|
sal_Int8 textDirection )
|
|
{
|
|
ENSURE_ARG_OR_THROW( xFont.is(),
|
|
"font is NULL");
|
|
|
|
if( mpOutDev )
|
|
{
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
|
|
::Point aOutpos;
|
|
if( !setupTextOutput( aOutpos, viewState, renderState, xFont ) )
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL); // no output necessary
|
|
|
|
// change text direction and layout mode
|
|
sal_uIntPtr nLayoutMode(0);
|
|
switch( textDirection )
|
|
{
|
|
case rendering::TextDirection::WEAK_LEFT_TO_RIGHT:
|
|
nLayoutMode |= TEXT_LAYOUT_BIDI_LTR;
|
|
// FALLTHROUGH intended
|
|
case rendering::TextDirection::STRONG_LEFT_TO_RIGHT:
|
|
nLayoutMode |= TEXT_LAYOUT_BIDI_LTR | TEXT_LAYOUT_BIDI_STRONG;
|
|
nLayoutMode |= TEXT_LAYOUT_TEXTORIGIN_LEFT;
|
|
break;
|
|
|
|
case rendering::TextDirection::WEAK_RIGHT_TO_LEFT:
|
|
nLayoutMode |= TEXT_LAYOUT_BIDI_RTL;
|
|
// FALLTHROUGH intended
|
|
case rendering::TextDirection::STRONG_RIGHT_TO_LEFT:
|
|
nLayoutMode |= TEXT_LAYOUT_BIDI_RTL | TEXT_LAYOUT_BIDI_STRONG;
|
|
nLayoutMode |= TEXT_LAYOUT_TEXTORIGIN_RIGHT;
|
|
break;
|
|
}
|
|
|
|
// TODO(F2): alpha
|
|
mpOutDev->getOutDev().SetLayoutMode( nLayoutMode );
|
|
mpOutDev->getOutDev().DrawText( aOutpos,
|
|
text.Text,
|
|
::canvas::tools::numeric_cast<sal_uInt16>(text.StartPosition),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(text.Length) );
|
|
|
|
if( mp2ndOutDev )
|
|
{
|
|
mp2ndOutDev->getOutDev().SetLayoutMode( nLayoutMode );
|
|
mp2ndOutDev->getOutDev().DrawText( aOutpos,
|
|
text.Text,
|
|
::canvas::tools::numeric_cast<sal_uInt16>(text.StartPosition),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(text.Length) );
|
|
}
|
|
}
|
|
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL);
|
|
}
|
|
|
|
uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawTextLayout( const rendering::XCanvas* ,
|
|
const uno::Reference< rendering::XTextLayout >& xLayoutedText,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState )
|
|
{
|
|
ENSURE_ARG_OR_THROW( xLayoutedText.is(),
|
|
"layout is NULL");
|
|
|
|
TextLayout* pTextLayout = dynamic_cast< TextLayout* >( xLayoutedText.get() );
|
|
|
|
if( pTextLayout )
|
|
{
|
|
if( mpOutDev )
|
|
{
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
|
|
// TODO(T3): Race condition. We're taking the font
|
|
// from xLayoutedText, and then calling draw() at it,
|
|
// without exclusive access. Move setupTextOutput(),
|
|
// e.g. to impltools?
|
|
|
|
::Point aOutpos;
|
|
if( !setupTextOutput( aOutpos, viewState, renderState, xLayoutedText->getFont() ) )
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL); // no output necessary
|
|
|
|
// TODO(F2): What about the offset scalings?
|
|
// TODO(F2): alpha
|
|
pTextLayout->draw( mpOutDev->getOutDev(), aOutpos, viewState, renderState );
|
|
|
|
if( mp2ndOutDev )
|
|
pTextLayout->draw( mp2ndOutDev->getOutDev(), aOutpos, viewState, renderState );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ENSURE_ARG_OR_THROW( false,
|
|
"TextLayout not compatible with this canvas" );
|
|
}
|
|
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL);
|
|
}
|
|
|
|
uno::Reference< rendering::XCachedPrimitive > CanvasHelper::implDrawBitmap( const rendering::XCanvas* pCanvas,
|
|
const uno::Reference< rendering::XBitmap >& xBitmap,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState,
|
|
bool bModulateColors )
|
|
{
|
|
ENSURE_ARG_OR_THROW( xBitmap.is(),
|
|
"bitmap is NULL");
|
|
|
|
::canvas::tools::verifyInput( renderState,
|
|
BOOST_CURRENT_FUNCTION,
|
|
mpDevice,
|
|
4,
|
|
bModulateColors ? 3 : 0 );
|
|
|
|
if( mpOutDev )
|
|
{
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
setupOutDevState( viewState, renderState, IGNORE_COLOR );
|
|
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
|
|
|
|
::basegfx::B2DPoint aOutputPos( 0.0, 0.0 );
|
|
aOutputPos *= aMatrix;
|
|
|
|
BitmapEx aBmpEx( tools::bitmapExFromXBitmap(xBitmap) );
|
|
|
|
// TODO(F2): Implement modulation again for other color
|
|
// channels (currently, works only for alpha). Note: this
|
|
// is already implemented in transformBitmap()
|
|
if( bModulateColors &&
|
|
renderState.DeviceColor.getLength() > 3 )
|
|
{
|
|
// optimize away the case where alpha modulation value
|
|
// is 1.0 - we then simply switch off modulation at all
|
|
bModulateColors = !::rtl::math::approxEqual(
|
|
renderState.DeviceColor[3], 1.0);
|
|
}
|
|
|
|
// check whether we can render bitmap as-is: must not
|
|
// modulate colors, matrix must either be the identity
|
|
// transform (that's clear), _or_ contain only
|
|
// translational components.
|
|
if( !bModulateColors &&
|
|
(aMatrix.isIdentity() ||
|
|
(::basegfx::fTools::equalZero( aMatrix.get(0,1) ) &&
|
|
::basegfx::fTools::equalZero( aMatrix.get(1,0) ) &&
|
|
::rtl::math::approxEqual(aMatrix.get(0,0), 1.0) &&
|
|
::rtl::math::approxEqual(aMatrix.get(1,1), 1.0)) ) )
|
|
{
|
|
// optimized case: identity matrix, or only
|
|
// translational components.
|
|
mpOutDev->getOutDev().DrawBitmapEx( ::vcl::unotools::pointFromB2DPoint( aOutputPos ),
|
|
aBmpEx );
|
|
|
|
if( mp2ndOutDev )
|
|
{
|
|
// HACK. Normally, CanvasHelper does not care about
|
|
// actually what mp2ndOutDev is... well, here we do &
|
|
// assume a 1bpp target - everything beyond 97%
|
|
// transparency is fully transparent
|
|
if( aBmpEx.IsAlpha() )
|
|
{
|
|
Bitmap aMask( aBmpEx.GetAlpha().GetBitmap() );
|
|
aMask.MakeMono( 253 );
|
|
aBmpEx = BitmapEx( aBmpEx.GetBitmap(), aMask );
|
|
}
|
|
else if( aBmpEx.IsTransparent() )
|
|
{
|
|
aBmpEx = BitmapEx( aBmpEx.GetBitmap(), aBmpEx.GetMask() );
|
|
}
|
|
|
|
mp2ndOutDev->getOutDev().DrawBitmapEx( ::vcl::unotools::pointFromB2DPoint( aOutputPos ),
|
|
aBmpEx );
|
|
}
|
|
|
|
// Returning a cache object is not useful, the XBitmap
|
|
// itself serves this purpose
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL);
|
|
}
|
|
else
|
|
{
|
|
// Matrix contains non-trivial transformation (or
|
|
// color modulation is requested), decompose to check
|
|
// whether GraphicObject suffices
|
|
::basegfx::B2DVector aScale;
|
|
double nRotate;
|
|
double nShearX;
|
|
aMatrix.decompose( aScale, aOutputPos, nRotate, nShearX );
|
|
|
|
GraphicAttr aGrfAttr;
|
|
GraphicObjectSharedPtr pGrfObj;
|
|
|
|
::Size aBmpSize( aBmpEx.GetSizePixel() );
|
|
|
|
// setup alpha modulation
|
|
if( bModulateColors )
|
|
{
|
|
const double nAlphaModulation( renderState.DeviceColor[3] );
|
|
|
|
// TODO(F1): Note that the GraphicManager has a
|
|
// subtle difference in how it calculates the
|
|
// resulting alpha value: it's using the inverse
|
|
// alpha values (i.e. 'transparency'), and
|
|
// calculates transOrig + transModulate, instead
|
|
// of transOrig + transModulate -
|
|
// transOrig*transModulate (which would be
|
|
// equivalent to the origAlpha*modulateAlpha the
|
|
// DX canvas performs)
|
|
aGrfAttr.SetTransparency(
|
|
static_cast< sal_uInt8 >(
|
|
::basegfx::fround( 255.0*( 1.0 - nAlphaModulation ) ) ) );
|
|
}
|
|
|
|
if( ::basegfx::fTools::equalZero( nShearX ) )
|
|
{
|
|
// no shear, GraphicObject is enough (the
|
|
// GraphicObject only supports scaling, rotation
|
|
// and translation)
|
|
|
|
// #i75339# don't apply mirror flags, having
|
|
// negative size values is enough to make
|
|
// GraphicObject flip the bitmap
|
|
|
|
// The angle has to be mapped from radian to tenths of
|
|
// degress with the orientation reversed: [0,2Pi) ->
|
|
// (3600,0]. Note that the original angle may have
|
|
// values outside the [0,2Pi) interval.
|
|
const double nAngleInTenthOfDegrees (3600.0 - nRotate * 3600.0 / (2*M_PI));
|
|
aGrfAttr.SetRotation( static_cast< sal_uInt16 >(::basegfx::fround(nAngleInTenthOfDegrees)) );
|
|
|
|
pGrfObj.reset( new GraphicObject( aBmpEx ) );
|
|
}
|
|
else
|
|
{
|
|
// modify output position, to account for the fact
|
|
// that transformBitmap() always normalizes its output
|
|
// bitmap into the smallest enclosing box.
|
|
::basegfx::B2DRectangle aDestRect;
|
|
::canvas::tools::calcTransformedRectBounds( aDestRect,
|
|
::basegfx::B2DRectangle(0,
|
|
0,
|
|
aBmpSize.Width(),
|
|
aBmpSize.Height()),
|
|
aMatrix );
|
|
|
|
aOutputPos.setX( aDestRect.getMinX() );
|
|
aOutputPos.setY( aDestRect.getMinY() );
|
|
|
|
// complex transformation, use generic affine bitmap
|
|
// transformation
|
|
aBmpEx = tools::transformBitmap( aBmpEx,
|
|
aMatrix,
|
|
renderState.DeviceColor,
|
|
tools::MODULATE_NONE );
|
|
|
|
pGrfObj.reset( new GraphicObject( aBmpEx ) );
|
|
|
|
// clear scale values, generated bitmap already
|
|
// contains scaling
|
|
aScale.setX( 1.0 ); aScale.setY( 1.0 );
|
|
|
|
// update bitmap size, bitmap has changed above.
|
|
aBmpSize = aBmpEx.GetSizePixel();
|
|
}
|
|
|
|
// output GraphicObject
|
|
const ::Point aPt( ::vcl::unotools::pointFromB2DPoint( aOutputPos ) );
|
|
const ::Size aSz( ::basegfx::fround( aScale.getX() * aBmpSize.Width() ),
|
|
::basegfx::fround( aScale.getY() * aBmpSize.Height() ) );
|
|
|
|
pGrfObj->Draw( &mpOutDev->getOutDev(),
|
|
aPt,
|
|
aSz,
|
|
&aGrfAttr );
|
|
|
|
if( mp2ndOutDev )
|
|
pGrfObj->Draw( &mp2ndOutDev->getOutDev(),
|
|
aPt,
|
|
aSz,
|
|
&aGrfAttr );
|
|
|
|
// created GraphicObject, which possibly cached
|
|
// display bitmap - return cache object, to retain
|
|
// that information.
|
|
return uno::Reference< rendering::XCachedPrimitive >(
|
|
new CachedBitmap( pGrfObj,
|
|
aPt,
|
|
aSz,
|
|
aGrfAttr,
|
|
viewState,
|
|
renderState,
|
|
// cast away const, need to
|
|
// change refcount (as this is
|
|
// ~invisible to client code,
|
|
// still logically const)
|
|
const_cast< rendering::XCanvas* >(pCanvas)) );
|
|
}
|
|
}
|
|
|
|
// Nothing rendered
|
|
return uno::Reference< rendering::XCachedPrimitive >(NULL);
|
|
}
|
|
|
|
uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmap( const rendering::XCanvas* pCanvas,
|
|
const uno::Reference< rendering::XBitmap >& xBitmap,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState )
|
|
{
|
|
return implDrawBitmap( pCanvas,
|
|
xBitmap,
|
|
viewState,
|
|
renderState,
|
|
false );
|
|
}
|
|
|
|
uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmapModulated( const rendering::XCanvas* pCanvas,
|
|
const uno::Reference< rendering::XBitmap >& xBitmap,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState )
|
|
{
|
|
return implDrawBitmap( pCanvas,
|
|
xBitmap,
|
|
viewState,
|
|
renderState,
|
|
true );
|
|
}
|
|
|
|
uno::Reference< rendering::XGraphicDevice > CanvasHelper::getDevice()
|
|
{
|
|
// cast away const, need to change refcount (as this is
|
|
// ~invisible to client code, still logically const)
|
|
return uno::Reference< rendering::XGraphicDevice >(mpDevice);
|
|
}
|
|
|
|
void CanvasHelper::copyRect( const rendering::XCanvas* ,
|
|
const uno::Reference< rendering::XBitmapCanvas >& ,
|
|
const geometry::RealRectangle2D& ,
|
|
const rendering::ViewState& ,
|
|
const rendering::RenderState& ,
|
|
const geometry::RealRectangle2D& ,
|
|
const rendering::ViewState& ,
|
|
const rendering::RenderState& )
|
|
{
|
|
// TODO(F1)
|
|
}
|
|
|
|
geometry::IntegerSize2D CanvasHelper::getSize()
|
|
{
|
|
if( !mpOutDev.get() )
|
|
return geometry::IntegerSize2D(); // we're disposed
|
|
|
|
return ::vcl::unotools::integerSize2DFromSize( mpOutDev->getOutDev().GetOutputSizePixel() );
|
|
}
|
|
|
|
uno::Reference< rendering::XBitmap > CanvasHelper::getScaledBitmap( const geometry::RealSize2D& newSize,
|
|
sal_Bool beFast )
|
|
{
|
|
if( !mpOutDev.get() || !mpDevice )
|
|
return uno::Reference< rendering::XBitmap >(); // we're disposed
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
rOutDev.EnableMapMode( sal_False );
|
|
|
|
// TODO(F2): Support alpha vdev canvas here
|
|
const Point aEmptyPoint(0,0);
|
|
const Size aBmpSize( rOutDev.GetOutputSizePixel() );
|
|
|
|
Bitmap aBitmap( rOutDev.GetBitmap(aEmptyPoint, aBmpSize) );
|
|
|
|
aBitmap.Scale( ::vcl::unotools::sizeFromRealSize2D(newSize),
|
|
beFast ? BMP_SCALE_FAST : BMP_SCALE_DEFAULT );
|
|
|
|
return uno::Reference< rendering::XBitmap >(
|
|
new CanvasBitmap( aBitmap, *mpDevice, mpOutDev ) );
|
|
}
|
|
|
|
uno::Sequence< sal_Int8 > CanvasHelper::getData( rendering::IntegerBitmapLayout& rLayout,
|
|
const geometry::IntegerRectangle2D& rect )
|
|
{
|
|
if( !mpOutDev.get() )
|
|
return uno::Sequence< sal_Int8 >(); // we're disposed
|
|
|
|
rLayout = getMemoryLayout();
|
|
|
|
// TODO(F2): Support alpha canvas here
|
|
const Rectangle aRect( ::vcl::unotools::rectangleFromIntegerRectangle2D(rect) );
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
rOutDev.EnableMapMode( sal_False );
|
|
|
|
Bitmap aBitmap( rOutDev.GetBitmap(aRect.TopLeft(),
|
|
aRect.GetSize()) );
|
|
|
|
Bitmap::ScopedReadAccess pReadAccess( aBitmap );
|
|
|
|
ENSURE_OR_THROW( pReadAccess.get() != NULL,
|
|
"Could not acquire read access to OutDev bitmap" );
|
|
|
|
const sal_Int32 nWidth( rect.X2 - rect.X1 );
|
|
const sal_Int32 nHeight( rect.Y2 - rect.Y1 );
|
|
|
|
rLayout.ScanLines = nHeight;
|
|
rLayout.ScanLineBytes = nWidth*4;
|
|
rLayout.ScanLineStride = rLayout.ScanLineBytes;
|
|
|
|
uno::Sequence< sal_Int8 > aRes( 4*nWidth*nHeight );
|
|
sal_Int8* pRes = aRes.getArray();
|
|
|
|
int nCurrPos(0);
|
|
for( int y=0; y<nHeight; ++y )
|
|
{
|
|
for( int x=0; x<nWidth; ++x )
|
|
{
|
|
pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetRed();
|
|
pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetGreen();
|
|
pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetBlue();
|
|
pRes[ nCurrPos++ ] = -1;
|
|
}
|
|
}
|
|
|
|
return aRes;
|
|
}
|
|
|
|
void CanvasHelper::setData( const uno::Sequence< sal_Int8 >& data,
|
|
const rendering::IntegerBitmapLayout& aLayout,
|
|
const geometry::IntegerRectangle2D& rect )
|
|
{
|
|
if( !mpOutDev.get() )
|
|
return; // we're disposed
|
|
|
|
const rendering::IntegerBitmapLayout aRefLayout( getMemoryLayout() );
|
|
ENSURE_ARG_OR_THROW( aRefLayout.PlaneStride != aLayout.PlaneStride ||
|
|
aRefLayout.ColorSpace != aLayout.ColorSpace ||
|
|
aRefLayout.Palette != aLayout.Palette ||
|
|
aRefLayout.IsMsbFirst != aLayout.IsMsbFirst,
|
|
"Mismatching memory layout" );
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
rOutDev.EnableMapMode( sal_False );
|
|
|
|
const Rectangle aRect( ::vcl::unotools::rectangleFromIntegerRectangle2D(rect) );
|
|
const sal_uInt16 nBitCount( ::std::min( (sal_uInt16)24U,
|
|
(sal_uInt16)rOutDev.GetBitCount() ) );
|
|
const BitmapPalette* pPalette = NULL;
|
|
|
|
if( nBitCount <= 8 )
|
|
{
|
|
// TODO(Q1): Extract this to a common place, e.g. GraphicDevice
|
|
|
|
// try to determine palette from output device (by
|
|
// extracting a 1,1 bitmap, and querying it)
|
|
const Point aEmptyPoint;
|
|
const Size aSize(1,1);
|
|
Bitmap aTmpBitmap( rOutDev.GetBitmap( aEmptyPoint,
|
|
aSize ) );
|
|
|
|
Bitmap::ScopedReadAccess pReadAccess( aTmpBitmap );
|
|
|
|
pPalette = &pReadAccess->GetPalette();
|
|
}
|
|
|
|
// TODO(F2): Support alpha canvas here
|
|
Bitmap aBitmap( aRect.GetSize(), nBitCount, pPalette );
|
|
|
|
bool bCopyBack( false ); // only copy something back, if we
|
|
// actually changed some pixel
|
|
{
|
|
Bitmap::ScopedWriteAccess pWriteAccess( aBitmap );
|
|
|
|
ENSURE_OR_THROW( pWriteAccess.get() != NULL,
|
|
"Could not acquire write access to OutDev bitmap" );
|
|
|
|
// for the time being, always read as RGB
|
|
const sal_Int32 nWidth( rect.X2 - rect.X1 );
|
|
const sal_Int32 nHeight( rect.Y2 - rect.Y1 );
|
|
int x, y, nCurrPos(0);
|
|
for( y=0; y<nHeight; ++y )
|
|
{
|
|
switch( pWriteAccess->GetScanlineFormat() )
|
|
{
|
|
case BMP_FORMAT_8BIT_PAL:
|
|
{
|
|
Scanline pScan = pWriteAccess->GetScanline( y );
|
|
|
|
for( x=0; x<nWidth; ++x )
|
|
{
|
|
*pScan++ = (sal_uInt8)pWriteAccess->GetBestPaletteIndex(
|
|
BitmapColor( data[ nCurrPos ],
|
|
data[ nCurrPos+1 ],
|
|
data[ nCurrPos+2 ] ) );
|
|
|
|
nCurrPos += 4;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BMP_FORMAT_24BIT_TC_BGR:
|
|
{
|
|
Scanline pScan = pWriteAccess->GetScanline( y );
|
|
|
|
for( x=0; x<nWidth; ++x )
|
|
{
|
|
*pScan++ = data[ nCurrPos+2 ];
|
|
*pScan++ = data[ nCurrPos+1 ];
|
|
*pScan++ = data[ nCurrPos ];
|
|
|
|
nCurrPos += 4;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BMP_FORMAT_24BIT_TC_RGB:
|
|
{
|
|
Scanline pScan = pWriteAccess->GetScanline( y );
|
|
|
|
for( x=0; x<nWidth; ++x )
|
|
{
|
|
*pScan++ = data[ nCurrPos ];
|
|
*pScan++ = data[ nCurrPos+1 ];
|
|
*pScan++ = data[ nCurrPos+2 ];
|
|
|
|
nCurrPos += 4;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
{
|
|
for( x=0; x<nWidth; ++x )
|
|
{
|
|
pWriteAccess->SetPixel( y, x, BitmapColor( data[ nCurrPos ],
|
|
data[ nCurrPos+1 ],
|
|
data[ nCurrPos+2 ] ) );
|
|
nCurrPos += 4;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
bCopyBack = true;
|
|
}
|
|
|
|
// copy back only here, since the BitmapAccessors must be
|
|
// destroyed beforehand
|
|
if( bCopyBack )
|
|
{
|
|
// TODO(F2): Support alpha canvas here
|
|
rOutDev.DrawBitmap(aRect.TopLeft(), aBitmap);
|
|
}
|
|
}
|
|
|
|
void CanvasHelper::setPixel( const uno::Sequence< sal_Int8 >& color,
|
|
const rendering::IntegerBitmapLayout& rLayout,
|
|
const geometry::IntegerPoint2D& pos )
|
|
{
|
|
if( !mpOutDev.get() )
|
|
return; // we're disposed
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
rOutDev.EnableMapMode( sal_False );
|
|
|
|
const Size aBmpSize( rOutDev.GetOutputSizePixel() );
|
|
|
|
ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aBmpSize.Width(),
|
|
"X coordinate out of bounds" );
|
|
ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aBmpSize.Height(),
|
|
"Y coordinate out of bounds" );
|
|
ENSURE_ARG_OR_THROW( color.getLength() > 3,
|
|
"not enough color components" );
|
|
|
|
const rendering::IntegerBitmapLayout aRefLayout( getMemoryLayout() );
|
|
ENSURE_ARG_OR_THROW( aRefLayout.PlaneStride != rLayout.PlaneStride ||
|
|
aRefLayout.ColorSpace != rLayout.ColorSpace ||
|
|
aRefLayout.Palette != rLayout.Palette ||
|
|
aRefLayout.IsMsbFirst != rLayout.IsMsbFirst,
|
|
"Mismatching memory layout" );
|
|
|
|
// TODO(F2): Support alpha canvas here
|
|
rOutDev.DrawPixel( ::vcl::unotools::pointFromIntegerPoint2D( pos ),
|
|
::canvas::tools::stdIntSequenceToColor( color ));
|
|
}
|
|
|
|
uno::Sequence< sal_Int8 > CanvasHelper::getPixel( rendering::IntegerBitmapLayout& rLayout,
|
|
const geometry::IntegerPoint2D& pos )
|
|
{
|
|
if( !mpOutDev.get() )
|
|
return uno::Sequence< sal_Int8 >(); // we're disposed
|
|
|
|
rLayout = getMemoryLayout();
|
|
rLayout.ScanLines = 1;
|
|
rLayout.ScanLineBytes = 4;
|
|
rLayout.ScanLineStride = rLayout.ScanLineBytes;
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
rOutDev.EnableMapMode( sal_False );
|
|
|
|
const Size aBmpSize( rOutDev.GetOutputSizePixel() );
|
|
|
|
ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aBmpSize.Width(),
|
|
"X coordinate out of bounds" );
|
|
ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aBmpSize.Height(),
|
|
"Y coordinate out of bounds" );
|
|
|
|
// TODO(F2): Support alpha canvas here
|
|
return ::canvas::tools::colorToStdIntSequence(
|
|
rOutDev.GetPixel(
|
|
::vcl::unotools::pointFromIntegerPoint2D( pos )));
|
|
}
|
|
|
|
rendering::IntegerBitmapLayout CanvasHelper::getMemoryLayout()
|
|
{
|
|
if( !mpOutDev.get() )
|
|
return rendering::IntegerBitmapLayout(); // we're disposed
|
|
|
|
return ::canvas::tools::getStdMemoryLayout(getSize());
|
|
}
|
|
|
|
int CanvasHelper::setupOutDevState( const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState,
|
|
ColorType eColorType ) const
|
|
{
|
|
ENSURE_OR_THROW( mpOutDev.get(),
|
|
"outdev null. Are we disposed?" );
|
|
|
|
::canvas::tools::verifyInput( renderState,
|
|
BOOST_CURRENT_FUNCTION,
|
|
mpDevice,
|
|
2,
|
|
eColorType == IGNORE_COLOR ? 0 : 3 );
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
OutputDevice* p2ndOutDev = NULL;
|
|
|
|
rOutDev.EnableMapMode( sal_False );
|
|
|
|
if( mp2ndOutDev )
|
|
p2ndOutDev = &mp2ndOutDev->getOutDev();
|
|
|
|
int nTransparency(0);
|
|
|
|
// TODO(P2): Don't change clipping all the time, maintain current clip
|
|
// state and change only when update is necessary
|
|
|
|
// accumulate non-empty clips into one region
|
|
// ==========================================
|
|
|
|
Region aClipRegion( REGION_NULL );
|
|
|
|
if( viewState.Clip.is() )
|
|
{
|
|
::basegfx::B2DPolyPolygon aClipPoly(
|
|
::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(viewState.Clip) );
|
|
|
|
if( aClipPoly.count() )
|
|
{
|
|
// setup non-empty clipping
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
aClipPoly.transform(
|
|
::basegfx::unotools::homMatrixFromAffineMatrix( aMatrix,
|
|
viewState.AffineTransform ) );
|
|
|
|
aClipRegion = Region::GetRegionFromPolyPolygon( ::PolyPolygon( aClipPoly ) );
|
|
}
|
|
else
|
|
{
|
|
// clip polygon is empty
|
|
aClipRegion.SetEmpty();
|
|
}
|
|
}
|
|
|
|
if( renderState.Clip.is() )
|
|
{
|
|
::basegfx::B2DPolyPolygon aClipPoly(
|
|
::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(renderState.Clip) );
|
|
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
aClipPoly.transform(
|
|
::canvas::tools::mergeViewAndRenderTransform( aMatrix,
|
|
viewState,
|
|
renderState ) );
|
|
|
|
if( aClipPoly.count() )
|
|
{
|
|
// setup non-empty clipping
|
|
Region aRegion = Region::GetRegionFromPolyPolygon( ::PolyPolygon( aClipPoly ) );
|
|
aClipRegion.Intersect( aRegion );
|
|
}
|
|
else
|
|
{
|
|
// clip polygon is empty
|
|
aClipRegion.SetEmpty();
|
|
}
|
|
}
|
|
|
|
// setup accumulated clip region. Note that setting an
|
|
// empty clip region denotes "clip everything" on the
|
|
// OutputDevice (which is why we translate that into
|
|
// SetClipRegion() here). When both view and render clip
|
|
// are empty, aClipRegion remains default-constructed,
|
|
// i.e. empty, too.
|
|
if( aClipRegion.IsNull() )
|
|
{
|
|
rOutDev.SetClipRegion();
|
|
|
|
if( p2ndOutDev )
|
|
p2ndOutDev->SetClipRegion();
|
|
}
|
|
else
|
|
{
|
|
rOutDev.SetClipRegion( aClipRegion );
|
|
|
|
if( p2ndOutDev )
|
|
p2ndOutDev->SetClipRegion( aClipRegion );
|
|
}
|
|
|
|
Color aColor( COL_WHITE );
|
|
|
|
if( renderState.DeviceColor.getLength() > 2 )
|
|
{
|
|
aColor = ::vcl::unotools::stdColorSpaceSequenceToColor(
|
|
renderState.DeviceColor );
|
|
}
|
|
|
|
// extract alpha, and make color opaque
|
|
// afterwards. Otherwise, OutputDevice won't draw anything
|
|
nTransparency = aColor.GetTransparency();
|
|
aColor.SetTransparency(0);
|
|
|
|
if( eColorType != IGNORE_COLOR )
|
|
{
|
|
switch( eColorType )
|
|
{
|
|
case LINE_COLOR:
|
|
rOutDev.SetLineColor( aColor );
|
|
rOutDev.SetFillColor();
|
|
|
|
if( p2ndOutDev )
|
|
{
|
|
p2ndOutDev->SetLineColor( aColor );
|
|
p2ndOutDev->SetFillColor();
|
|
}
|
|
break;
|
|
|
|
case FILL_COLOR:
|
|
rOutDev.SetFillColor( aColor );
|
|
rOutDev.SetLineColor();
|
|
|
|
if( p2ndOutDev )
|
|
{
|
|
p2ndOutDev->SetFillColor( aColor );
|
|
p2ndOutDev->SetLineColor();
|
|
}
|
|
break;
|
|
|
|
case TEXT_COLOR:
|
|
rOutDev.SetTextColor( aColor );
|
|
|
|
if( p2ndOutDev )
|
|
p2ndOutDev->SetTextColor( aColor );
|
|
break;
|
|
|
|
default:
|
|
ENSURE_OR_THROW( false,
|
|
"Unexpected color type");
|
|
break;
|
|
}
|
|
}
|
|
|
|
return nTransparency;
|
|
}
|
|
|
|
bool CanvasHelper::setupTextOutput( ::Point& o_rOutPos,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState,
|
|
const uno::Reference< rendering::XCanvasFont >& xFont ) const
|
|
{
|
|
ENSURE_OR_THROW( mpOutDev.get(),
|
|
"outdev null. Are we disposed?" );
|
|
|
|
setupOutDevState( viewState, renderState, TEXT_COLOR );
|
|
|
|
OutputDevice& rOutDev( mpOutDev->getOutDev() );
|
|
|
|
::Font aVCLFont;
|
|
|
|
CanvasFont* pFont = dynamic_cast< CanvasFont* >( xFont.get() );
|
|
|
|
ENSURE_ARG_OR_THROW( pFont,
|
|
"Font not compatible with this canvas" );
|
|
|
|
aVCLFont = pFont->getVCLFont();
|
|
|
|
Color aColor( COL_BLACK );
|
|
|
|
if( renderState.DeviceColor.getLength() > 2 )
|
|
{
|
|
aColor = ::vcl::unotools::stdColorSpaceSequenceToColor(
|
|
renderState.DeviceColor );
|
|
}
|
|
|
|
// setup font color
|
|
aVCLFont.SetColor( aColor );
|
|
aVCLFont.SetFillColor( aColor );
|
|
|
|
// no need to replicate this for mp2ndOutDev, we're modifying only aVCLFont here.
|
|
if( !tools::setupFontTransform( o_rOutPos, aVCLFont, viewState, renderState, rOutDev ) )
|
|
return false;
|
|
|
|
rOutDev.SetFont( aVCLFont );
|
|
|
|
if( mp2ndOutDev )
|
|
mp2ndOutDev->getOutDev().SetFont( aVCLFont );
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CanvasHelper::repaint( const GraphicObjectSharedPtr& rGrf,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState,
|
|
const ::Point& rPt,
|
|
const ::Size& rSz,
|
|
const GraphicAttr& rAttr ) const
|
|
{
|
|
ENSURE_OR_RETURN_FALSE( rGrf,
|
|
"Invalid Graphic" );
|
|
|
|
if( !mpOutDev )
|
|
return false; // disposed
|
|
else
|
|
{
|
|
tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
|
|
setupOutDevState( viewState, renderState, IGNORE_COLOR );
|
|
|
|
if( !rGrf->Draw( &mpOutDev->getOutDev(), rPt, rSz, &rAttr ) )
|
|
return false;
|
|
|
|
// #i80779# Redraw also into mask outdev
|
|
if( mp2ndOutDev )
|
|
return rGrf->Draw( &mp2ndOutDev->getOutDev(), rPt, rSz, &rAttr );
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
void CanvasHelper::flush() const
|
|
{
|
|
if( mpOutDev && mpOutDev->getOutDev().GetOutDevType() == OUTDEV_WINDOW )
|
|
{
|
|
// TODO(Q3): Evil downcast. And what's more, Window::Flush is
|
|
// not even const. Wah.
|
|
static_cast<Window&>(mpOutDev->getOutDev()).Flush();
|
|
}
|
|
|
|
if( mp2ndOutDev && mp2ndOutDev->getOutDev().GetOutDevType() == OUTDEV_WINDOW )
|
|
{
|
|
// TODO(Q3): Evil downcast. And what's more, Window::Flush is
|
|
// not even const. Wah.
|
|
static_cast<Window&>(mp2ndOutDev->getOutDev()).Flush();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|