/* -*- 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 #include #include #include #include "emfppath.hxx" namespace { const unsigned char nTopBitInt7 = 0x80; const unsigned char nSignBitInt7 = 0x40; // include the sign bit so if it's negative we get // that "missing" bit pre-set to 1 const unsigned char nValueMaskInt7 = 0x7F; } namespace emfplushelper { // see 2.2.2.21 EmfPlusInteger7 // 2.2.2.22 EmfPlusInteger15 // and 2.2.2.37 EmfPlusPointR Object static sal_Int16 GetEmfPlusInteger(SvStream& s) { unsigned char u8(0); s.ReadUChar(u8); bool bIsEmfPlusInteger15 = u8 & nTopBitInt7; bool bNegative = u8 & nSignBitInt7; unsigned char val1 = u8 & nValueMaskInt7; if (bNegative) val1 |= nTopBitInt7; if (!bIsEmfPlusInteger15) { return static_cast(val1); } s.ReadUChar(u8); sal_uInt16 nRet = (val1 << 8) | u8; return static_cast(nRet); } EMFPPath::EMFPPath (sal_uInt32 _nPoints, bool bLines) { if (_nPoints > SAL_MAX_UINT32 / (2 * sizeof(float))) { _nPoints = SAL_MAX_UINT32 / (2 * sizeof(float)); } nPoints = _nPoints; pPoints.reset( new float [nPoints*2] ); if (!bLines) pPointTypes.reset( new sal_uInt8 [_nPoints] ); } EMFPPath::~EMFPPath () { } void EMFPPath::Read (SvStream& s, sal_uInt32 pathFlags) { for (sal_uInt32 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_Int32 x = GetEmfPlusInteger(s); sal_Int32 y = GetEmfPlusInteger(s); pPoints [i*2] = x; pPoints [i*2 + 1] = y; SAL_INFO("drawinglayer.emf", "EMF+\t\t\t" << i << ". EmfPlusPointR [x,y]: " << x << ", " << y); } else if (pathFlags & 0x4000) { // EMFPlusPoint: stored in signed short 16bit integer format sal_Int16 x, y; s.ReadInt16( x ).ReadInt16( y ); SAL_INFO ("drawinglayer.emf", "EMF+\t\t\t" << i << ". 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("drawinglayer.emf", "EMF+\t" << i << ". EMFPlusPointF [x,y]: " << pPoints [i * 2] << ", " << pPoints [i * 2 + 1]); } } if (pPointTypes) { for (sal_uInt32 i = 0; i < nPoints; i++) { s.ReadUChar(pPointTypes[i]); SAL_INFO("drawinglayer.emf", "EMF+\tpoint type: 0x" << std::hex << static_cast(pPointTypes[i]) << std::dec); } } aPolygon.clear(); } ::basegfx::B2DPolyPolygon& EMFPPath::GetPolygon (EmfPlusHelperData const & rR, bool bMapIt, bool bAddLineToCloseShape) { ::basegfx::B2DPolygon polygon; aPolygon.clear (); sal_uInt32 last_normal = 0, p = 0; ::basegfx::B2DPoint prev, mapped; bool hasPrev = false; for (sal_uInt32 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 ("drawinglayer.emf", "EMF+\t\tPolygon 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 ("drawinglayer.emf", "EMF+\t\tPoint: " << pPoints [i*2] << "," << pPoints [i*2 + 1] << " mapped: " << mapped.getX () << ":" << mapped.getY ()); if (hasPrev) { polygon.setPrevControlPoint (p, prev); SAL_INFO ("drawinglayer.emf", "EMF+\t\tPolygon 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 ("drawinglayer.emf", "EMF+\t\tClose 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) { polygon.setClosed (true); } if (polygon.count ()) { aPolygon.append (polygon); #if OSL_DEBUG_LEVEL > 1 for (unsigned int i=0; idistro/nisz/libreoffice-7-0 LibreOffice 核心代码仓库文档基金会
summaryrefslogtreecommitdiff