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Diffstat (limited to 'drawinglayer/source/tools/emfppath.cxx')
| -rw-r--r-- | drawinglayer/source/tools/emfppath.cxx | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/drawinglayer/source/tools/emfppath.cxx b/drawinglayer/source/tools/emfppath.cxx new file mode 100644 index 000000000000..ae4cfa60149a --- /dev/null +++ b/drawinglayer/source/tools/emfppath.cxx @@ -0,0 +1,192 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <com/sun/star/rendering/PathCapType.hpp> +#include <com/sun/star/rendering/PathJoinType.hpp> +#include <com/sun/star/rendering/TexturingMode.hpp> +#include <com/sun/star/rendering/XCanvas.hpp> +#include <basegfx/tools/canvastools.hxx> +#include <basegfx/tools/gradienttools.hxx> +#include <basegfx/tools/tools.hxx> +#include <basegfx/numeric/ftools.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <basegfx/vector/b2dsize.hxx> +#include <basegfx/range/b2drange.hxx> +#include <basegfx/range/b2drectangle.hxx> +#include <basegfx/polygon/b2dlinegeometry.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolypolygon.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <vcl/canvastools.hxx> +#include <emfppath.hxx> + +using namespace ::com::sun::star; +using namespace ::basegfx; + +namespace emfplushelper +{ + EMFPPath::EMFPPath (sal_Int32 _nPoints, bool bLines) + { + if( _nPoints<0 || sal_uInt32(_nPoints)>SAL_MAX_INT32/(2*sizeof(float)) ) + _nPoints = SAL_MAX_INT32/(2*sizeof(float)); + nPoints = _nPoints; + pPoints = new float [nPoints*2]; + if (!bLines) + pPointTypes = new sal_uInt8 [_nPoints]; + else + pPointTypes = nullptr; + } + + EMFPPath::~EMFPPath () + { + delete [] pPoints; + delete [] pPointTypes; + } + + // TODO: remove rR argument when debug code is no longer needed + void EMFPPath::Read (SvStream& s, sal_uInt32 pathFlags, EmfPlusHelperData& rR) + { + for (int i = 0; i < nPoints; i ++) { + if (pathFlags & 0x800) { + // EMFPlusPointR: points are stored in EMFPlusInteger7 or + // EMFPlusInteger15 objects, see section 2.2.2.21/22 + // If 0x800 bit is set, the 0x4000 bit is undefined and must be ignored + SAL_WARN("cppcanvas.emf", "EMF+\t\t TODO - parse EMFPlusPointR object (section 2.2.1.6)"); + } else if (pathFlags & 0x4000) { + // EMFPlusPoint: stored in signed short 16bit integer format + sal_Int16 x, y; + + s.ReadInt16( x ).ReadInt16( y ); + SAL_INFO ("cppcanvas.emf", "EMF+\t EMFPlusPoint [x,y]: " << x << "," << y); + pPoints [i*2] = x; + pPoints [i*2 + 1] = y; + } else { + // EMFPlusPointF: stored in Single (float) format + s.ReadFloat( pPoints [i*2] ).ReadFloat( pPoints [i*2 + 1] ); + SAL_INFO ("cppcanvas.emf", "EMF+\t EMFPlusPointF [x,y]: " << pPoints [i*2] << "," << pPoints [i*2 + 1]); + } + + } + + if (pPointTypes) + for (int i = 0; i < nPoints; i ++) { + s.ReadUChar( pPointTypes [i] ); + SAL_INFO ("cppcanvas.emf", "EMF+\tpoint type: " << (int)pPointTypes [i]); + } + + aPolygon.clear (); + +#if OSL_DEBUG_LEVEL > 1 + const ::basegfx::B2DRectangle aBounds (::basegfx::tools::getRange (GetPolygon (rR))); + + SAL_INFO ("cppcanvas.emf", + "EMF+\tpolygon bounding box: " << aBounds.getMinX () << "," << aBounds.getMinY () << aBounds.getWidth () << "x" << aBounds.getHeight () << " (mapped)"); +#else + (void) rR; // avoid warnings +#endif + } + + ::basegfx::B2DPolyPolygon& EMFPPath::GetPolygon (EmfPlusHelperData& rR, bool bMapIt, bool bAddLineToCloseShape) + { + ::basegfx::B2DPolygon polygon; + + aPolygon.clear (); + + int last_normal = 0, p = 0; + ::basegfx::B2DPoint prev, mapped; + bool hasPrev = false; + for (int i = 0; i < nPoints; i ++) { + if (p && pPointTypes && (pPointTypes [i] == 0)) { + aPolygon.append (polygon); + last_normal = i; + p = 0; + polygon.clear (); + } + + if (bMapIt) + mapped = rR.Map (pPoints [i*2], pPoints [i*2 + 1]); + else + mapped = ::basegfx::B2DPoint (pPoints [i*2], pPoints [i*2 + 1]); + if (pPointTypes) { + if ((pPointTypes [i] & 0x07) == 3) { + if (((i - last_normal )% 3) == 1) { + polygon.setNextControlPoint (p - 1, mapped); + SAL_INFO ("cppcanvas.emf", "polygon append next: " << p - 1 << " mapped: " << mapped.getX () << "," << mapped.getY ()); + continue; + } else if (((i - last_normal) % 3) == 2) { + prev = mapped; + hasPrev = true; + continue; + } + } else + last_normal = i; + } + polygon.append (mapped); + SAL_INFO ("cppcanvas.emf", "polygon append point: " << pPoints [i*2] << "," << pPoints [i*2 + 1] << " mapped: " << mapped.getX () << ":" << mapped.getY ()); + if (hasPrev) { + polygon.setPrevControlPoint (p, prev); + SAL_INFO ("cppcanvas.emf", "polygon append prev: " << p << " mapped: " << prev.getX () << "," << prev.getY ()); + hasPrev = false; + } + p ++; + if (pPointTypes && (pPointTypes [i] & 0x80)) { // closed polygon + polygon.setClosed (true); + aPolygon.append (polygon); + SAL_INFO ("cppcanvas.emf", "close polygon"); + last_normal = i + 1; + p = 0; + polygon.clear (); + } + } + // Draw an extra line between the last point and the first point, to close the shape. + if (bAddLineToCloseShape) { + if (bMapIt) + polygon.append (rR.Map (pPoints [0], pPoints [1]) ); + else + polygon.append (::basegfx::B2DPoint (pPoints [0], pPoints [1]) ); + } + if (polygon.count ()) { + aPolygon.append (polygon); + +#if OSL_DEBUG_LEVEL > 1 + for (unsigned int i=0; i<aPolygon.count(); i++) { + polygon = aPolygon.getB2DPolygon(i); + SAL_INFO ("cppcanvas.emf", "polygon: " << i); + for (unsigned int j=0; j<polygon.count(); j++) { + ::basegfx::B2DPoint point = polygon.getB2DPoint(j); + SAL_INFO ("cppcanvas.emf", "point: " << point.getX() << "," << point.getY()); + if (polygon.isPrevControlPointUsed(j)) { + point = polygon.getPrevControlPoint(j); + SAL_INFO ("cppcanvas.emf", "prev: " << point.getX() << "," << point.getY()); + } + if (polygon.isNextControlPointUsed(j)) { + point = polygon.getNextControlPoint(j); + SAL_INFO ("cppcanvas.emf", "next: " << point.getX() << "," << point.getY()); + } + } + } +#endif + } + + return aPolygon; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |