dc3d621411
Let's not hide the assert() in a function whose sole purpose is to call assert(). Change-Id: I7a8a04aad560b0f22398daabf12d00bbe58e89f1
491 lines
15 KiB
C++
491 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <cassert>
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#include <sal/types.h>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <basegfx/polygon/b2dpolypolygontools.hxx>
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#include <memory>
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#include <tools/poly.hxx>
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#include <vcl/outdev.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/window.hxx>
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#include "salgdi.hxx"
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#define OUTDEV_POLYPOLY_STACKBUF 32
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void OutputDevice::DrawPolyPolygon( const tools::PolyPolygon& rPolyPoly )
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{
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assert(!is_double_buffered_window());
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if( mpMetaFile )
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mpMetaFile->AddAction( new MetaPolyPolygonAction( rPolyPoly ) );
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sal_uInt16 nPoly = rPolyPoly.Count();
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if ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || !nPoly || ImplIsRecordLayout() )
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return;
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// we need a graphics
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if ( !mpGraphics && !AcquireGraphics() )
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return;
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if ( mbInitClipRegion )
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InitClipRegion();
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if ( mbOutputClipped )
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return;
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if ( mbInitLineColor )
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InitLineColor();
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if ( mbInitFillColor )
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InitFillColor();
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// use b2dpolygon drawing if possible
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if((mnAntialiasing & AntialiasingFlags::EnableB2dDraw) &&
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mpGraphics->supportsOperation(OutDevSupport_B2DDraw) &&
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ROP_OVERPAINT == GetRasterOp() &&
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(IsLineColor() || IsFillColor()))
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{
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const ::basegfx::B2DHomMatrix aTransform = ImplGetDeviceTransformation();
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basegfx::B2DPolyPolygon aB2DPolyPolygon(rPolyPoly.getB2DPolyPolygon());
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bool bSuccess(true);
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// transform the polygon and ensure closed
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aB2DPolyPolygon.transform(aTransform);
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aB2DPolyPolygon.setClosed(true);
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if(IsFillColor())
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{
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bSuccess = mpGraphics->DrawPolyPolygon(aB2DPolyPolygon, 0.0, this);
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}
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if(bSuccess && IsLineColor())
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{
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const ::basegfx::B2DVector aB2DLineWidth( 1.0, 1.0 );
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if(mnAntialiasing & AntialiasingFlags::PixelSnapHairline)
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{
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aB2DPolyPolygon = basegfx::tools::snapPointsOfHorizontalOrVerticalEdges(aB2DPolyPolygon);
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}
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for(sal_uInt32 a(0); bSuccess && a < aB2DPolyPolygon.count(); a++)
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{
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bSuccess = mpGraphics->DrawPolyLine( aB2DPolyPolygon.getB2DPolygon(a),
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0.0,
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aB2DLineWidth,
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basegfx::B2DLineJoin::NONE,
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css::drawing::LineCap_BUTT,
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this);
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}
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}
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if(bSuccess)
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{
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return;
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}
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}
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if ( nPoly == 1 )
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{
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// #100127# Map to DrawPolygon
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Polygon aPoly = rPolyPoly.GetObject( 0 );
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if( aPoly.GetSize() >= 2 )
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{
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GDIMetaFile* pOldMF = mpMetaFile;
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mpMetaFile = NULL;
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DrawPolygon( aPoly );
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mpMetaFile = pOldMF;
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}
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}
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else
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{
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// #100127# moved real tools::PolyPolygon draw to separate method,
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// have to call recursively, avoiding duplicate
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// ImplLogicToDevicePixel calls
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ImplDrawPolyPolygon( nPoly, ImplLogicToDevicePixel( rPolyPoly ) );
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}
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if( mpAlphaVDev )
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mpAlphaVDev->DrawPolyPolygon( rPolyPoly );
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}
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void OutputDevice::DrawPolygon( const basegfx::B2DPolygon& rB2DPolygon)
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{
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assert(!is_double_buffered_window());
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// AW: Do NOT paint empty polygons
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if(rB2DPolygon.count())
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{
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basegfx::B2DPolyPolygon aPP( rB2DPolygon );
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DrawPolyPolygon( aPP );
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}
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}
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void OutputDevice::DrawPolygon( const Polygon& rPoly )
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{
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assert(!is_double_buffered_window());
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if( mpMetaFile )
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mpMetaFile->AddAction( new MetaPolygonAction( rPoly ) );
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sal_uInt16 nPoints = rPoly.GetSize();
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if ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || (nPoints < 2) || ImplIsRecordLayout() )
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return;
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// we need a graphics
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if ( !mpGraphics && !AcquireGraphics() )
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return;
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if ( mbInitClipRegion )
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InitClipRegion();
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if ( mbOutputClipped )
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return;
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if ( mbInitLineColor )
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InitLineColor();
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if ( mbInitFillColor )
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InitFillColor();
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// use b2dpolygon drawing if possible
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if((mnAntialiasing & AntialiasingFlags::EnableB2dDraw) &&
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mpGraphics->supportsOperation(OutDevSupport_B2DDraw) &&
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ROP_OVERPAINT == GetRasterOp() &&
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(IsLineColor() || IsFillColor()))
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{
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const ::basegfx::B2DHomMatrix aTransform = ImplGetDeviceTransformation();
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basegfx::B2DPolygon aB2DPolygon(rPoly.getB2DPolygon());
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bool bSuccess(true);
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// transform the polygon and ensure closed
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aB2DPolygon.transform(aTransform);
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aB2DPolygon.setClosed(true);
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if(IsFillColor())
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{
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bSuccess = mpGraphics->DrawPolyPolygon(basegfx::B2DPolyPolygon(aB2DPolygon), 0.0, this);
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}
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if(bSuccess && IsLineColor())
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{
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const ::basegfx::B2DVector aB2DLineWidth( 1.0, 1.0 );
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if(mnAntialiasing & AntialiasingFlags::PixelSnapHairline)
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{
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aB2DPolygon = basegfx::tools::snapPointsOfHorizontalOrVerticalEdges(aB2DPolygon);
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}
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bSuccess = mpGraphics->DrawPolyLine( aB2DPolygon,
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0.0,
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aB2DLineWidth,
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basegfx::B2DLineJoin::NONE,
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css::drawing::LineCap_BUTT,
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this);
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}
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if(bSuccess)
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{
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return;
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}
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}
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Polygon aPoly = ImplLogicToDevicePixel( rPoly );
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const SalPoint* pPtAry = reinterpret_cast<const SalPoint*>(aPoly.GetConstPointAry());
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// #100127# Forward beziers to sal, if any
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if( aPoly.HasFlags() )
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{
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const sal_uInt8* pFlgAry = aPoly.GetConstFlagAry();
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if( !mpGraphics->DrawPolygonBezier( nPoints, pPtAry, pFlgAry, this ) )
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{
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aPoly = Polygon::SubdivideBezier(aPoly);
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pPtAry = reinterpret_cast<const SalPoint*>(aPoly.GetConstPointAry());
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mpGraphics->DrawPolygon( aPoly.GetSize(), pPtAry, this );
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}
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}
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else
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{
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mpGraphics->DrawPolygon( nPoints, pPtAry, this );
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}
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if( mpAlphaVDev )
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mpAlphaVDev->DrawPolygon( rPoly );
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}
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// Caution: This method is nearly the same as
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// OutputDevice::DrawTransparent( const basegfx::B2DPolyPolygon& rB2DPolyPoly, double fTransparency),
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// so when changes are made here do not forget to make changes there, too
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void OutputDevice::DrawPolyPolygon( const basegfx::B2DPolyPolygon& rB2DPolyPoly )
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{
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assert(!is_double_buffered_window());
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if( mpMetaFile )
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mpMetaFile->AddAction( new MetaPolyPolygonAction( tools::PolyPolygon( rB2DPolyPoly ) ) );
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// call helper
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ImplDrawPolyPolygonWithB2DPolyPolygon(rB2DPolyPoly);
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}
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void OutputDevice::ImplDrawPolyPolygonWithB2DPolyPolygon(const basegfx::B2DPolyPolygon& rB2DPolyPoly)
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{
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// Do not paint empty PolyPolygons
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if(!rB2DPolyPoly.count() || !IsDeviceOutputNecessary())
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return;
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// we need a graphics
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if( !mpGraphics && !AcquireGraphics() )
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return;
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if( mbInitClipRegion )
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InitClipRegion();
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if( mbOutputClipped )
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return;
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if( mbInitLineColor )
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InitLineColor();
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if( mbInitFillColor )
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InitFillColor();
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if((mnAntialiasing & AntialiasingFlags::EnableB2dDraw) &&
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mpGraphics->supportsOperation(OutDevSupport_B2DDraw) &&
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ROP_OVERPAINT == GetRasterOp() &&
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(IsLineColor() || IsFillColor()))
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{
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const basegfx::B2DHomMatrix aTransform(ImplGetDeviceTransformation());
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basegfx::B2DPolyPolygon aB2DPolyPolygon(rB2DPolyPoly);
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bool bSuccess(true);
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// transform the polygon and ensure closed
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aB2DPolyPolygon.transform(aTransform);
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aB2DPolyPolygon.setClosed(true);
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if(IsFillColor())
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{
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bSuccess = mpGraphics->DrawPolyPolygon(aB2DPolyPolygon, 0.0, this);
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}
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if(bSuccess && IsLineColor())
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{
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const ::basegfx::B2DVector aB2DLineWidth( 1.0, 1.0 );
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if(mnAntialiasing & AntialiasingFlags::PixelSnapHairline)
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{
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aB2DPolyPolygon = basegfx::tools::snapPointsOfHorizontalOrVerticalEdges(aB2DPolyPolygon);
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}
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for(sal_uInt32 a(0);bSuccess && a < aB2DPolyPolygon.count(); a++)
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{
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bSuccess = mpGraphics->DrawPolyLine( aB2DPolyPolygon.getB2DPolygon(a),
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0.0,
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aB2DLineWidth,
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basegfx::B2DLineJoin::NONE,
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css::drawing::LineCap_BUTT,
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this);
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}
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}
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if(bSuccess)
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{
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return;
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}
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}
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// fallback to old polygon drawing if needed
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const tools::PolyPolygon aToolsPolyPolygon( rB2DPolyPoly );
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const tools::PolyPolygon aPixelPolyPolygon = ImplLogicToDevicePixel( aToolsPolyPolygon );
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ImplDrawPolyPolygon( aPixelPolyPolygon.Count(), aPixelPolyPolygon );
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}
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// #100127# Extracted from OutputDevice::DrawPolyPolygon()
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void OutputDevice::ImplDrawPolyPolygon( sal_uInt16 nPoly, const tools::PolyPolygon& rPolyPoly )
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{
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// AW: This crashes on empty PolyPolygons, avoid that
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if(!nPoly)
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return;
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sal_uInt32 aStackAry1[OUTDEV_POLYPOLY_STACKBUF];
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PCONSTSALPOINT aStackAry2[OUTDEV_POLYPOLY_STACKBUF];
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sal_uInt8* aStackAry3[OUTDEV_POLYPOLY_STACKBUF];
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sal_uInt32* pPointAry;
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PCONSTSALPOINT* pPointAryAry;
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const sal_uInt8** pFlagAryAry;
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sal_uInt16 i = 0;
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sal_uInt16 j = 0;
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sal_uInt16 last = 0;
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bool bHaveBezier = false;
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if ( nPoly > OUTDEV_POLYPOLY_STACKBUF )
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{
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pPointAry = new sal_uInt32[nPoly];
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pPointAryAry = new PCONSTSALPOINT[nPoly];
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pFlagAryAry = new const sal_uInt8*[nPoly];
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}
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else
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{
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pPointAry = aStackAry1;
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pPointAryAry = aStackAry2;
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pFlagAryAry = const_cast<const sal_uInt8**>(aStackAry3);
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}
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do
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{
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const Polygon& rPoly = rPolyPoly.GetObject( i );
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sal_uInt16 nSize = rPoly.GetSize();
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if ( nSize )
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{
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pPointAry[j] = nSize;
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pPointAryAry[j] = reinterpret_cast<PCONSTSALPOINT>(rPoly.GetConstPointAry());
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pFlagAryAry[j] = rPoly.GetConstFlagAry();
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last = i;
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if( pFlagAryAry[j] )
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bHaveBezier = true;
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++j;
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}
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++i;
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}
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while ( i < nPoly );
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if ( j == 1 )
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{
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// #100127# Forward beziers to sal, if any
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if( bHaveBezier )
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{
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if( !mpGraphics->DrawPolygonBezier( *pPointAry, *pPointAryAry, *pFlagAryAry, this ) )
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{
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Polygon aPoly = Polygon::SubdivideBezier( rPolyPoly.GetObject( last ) );
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mpGraphics->DrawPolygon( aPoly.GetSize(), reinterpret_cast<const SalPoint*>(aPoly.GetConstPointAry()), this );
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}
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}
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else
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{
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mpGraphics->DrawPolygon( *pPointAry, *pPointAryAry, this );
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}
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}
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else
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{
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// #100127# Forward beziers to sal, if any
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if( bHaveBezier )
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{
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if( !mpGraphics->DrawPolyPolygonBezier( j, pPointAry, pPointAryAry, pFlagAryAry, this ) )
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{
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tools::PolyPolygon aPolyPoly = tools::PolyPolygon::SubdivideBezier( rPolyPoly );
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ImplDrawPolyPolygon( aPolyPoly.Count(), aPolyPoly );
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}
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}
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else
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{
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mpGraphics->DrawPolyPolygon( j, pPointAry, pPointAryAry, this );
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}
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}
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if ( pPointAry != aStackAry1 )
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{
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delete[] pPointAry;
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delete[] pPointAryAry;
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delete[] pFlagAryAry;
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}
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}
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void OutputDevice::ImplDrawPolygon( const Polygon& rPoly, const tools::PolyPolygon* pClipPolyPoly )
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{
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if( pClipPolyPoly )
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{
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ImplDrawPolyPolygon( rPoly, pClipPolyPoly );
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}
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else
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{
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sal_uInt16 nPoints = rPoly.GetSize();
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if ( nPoints < 2 )
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return;
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const SalPoint* pPtAry = reinterpret_cast<const SalPoint*>(rPoly.GetConstPointAry());
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mpGraphics->DrawPolygon( nPoints, pPtAry, this );
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}
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}
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void OutputDevice::ImplDrawPolyPolygon( const tools::PolyPolygon& rPolyPoly, const tools::PolyPolygon* pClipPolyPoly )
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{
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tools::PolyPolygon* pPolyPoly;
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if( pClipPolyPoly )
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{
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pPolyPoly = new tools::PolyPolygon;
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rPolyPoly.GetIntersection( *pClipPolyPoly, *pPolyPoly );
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}
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else
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{
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pPolyPoly = const_cast<tools::PolyPolygon*>(&rPolyPoly);
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}
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if( pPolyPoly->Count() == 1 )
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{
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const Polygon rPoly = pPolyPoly->GetObject( 0 );
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sal_uInt16 nSize = rPoly.GetSize();
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if( nSize >= 2 )
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{
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const SalPoint* pPtAry = reinterpret_cast<const SalPoint*>(rPoly.GetConstPointAry());
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mpGraphics->DrawPolygon( nSize, pPtAry, this );
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}
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}
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else if( pPolyPoly->Count() )
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{
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sal_uInt16 nCount = pPolyPoly->Count();
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std::unique_ptr<sal_uInt32[]> pPointAry(new sal_uInt32[nCount]);
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std::unique_ptr<PCONSTSALPOINT[]> pPointAryAry(new PCONSTSALPOINT[nCount]);
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sal_uInt16 i = 0;
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do
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{
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const Polygon& rPoly = pPolyPoly->GetObject( i );
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sal_uInt16 nSize = rPoly.GetSize();
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if ( nSize )
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{
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pPointAry[i] = nSize;
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pPointAryAry[i] = reinterpret_cast<PCONSTSALPOINT>(rPoly.GetConstPointAry());
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i++;
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}
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else
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nCount--;
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}
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while( i < nCount );
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if( nCount == 1 )
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mpGraphics->DrawPolygon( pPointAry[0], pPointAryAry[0], this );
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else
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mpGraphics->DrawPolyPolygon( nCount, pPointAry.get(), pPointAryAry.get(), this );
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}
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if( pClipPolyPoly )
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delete pPolyPoly;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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