/* -*- 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 . */ #pragma once #include #include #include namespace basegfx { /** A two-dimensional interval over integers This is most easily depicted as a set of integers, bounded by a lower and an upper value - but excluding the upper value. All inbetween values are included in the set (see also http://en.wikipedia.org/wiki/Interval_%28mathematics%29). The set is half-open, i.e. the lower bound is included, the upper bound not (if you're used to the notation - we're talking about [a,b) here, compared to closed [a,b] or fully open intervals (a,b)). If you don't need a half-open interval, check B2IRange. That means, isInside(val) will return true also for values of val=a, but not for val=b. Alternatively, consider this a rectangle, where the rightmost pixel column and the bottommost pixel row are excluded - this is much like polygon filling. As a result, filling a given rectangle with basebmp::BitmapDevice::fillPolyPolygon(), will affect exactly the same set of pixel as isInside() would return true for. @see B2IRange */ class B2IBox { public: typedef sal_Int32 ValueType; typedef Int32Traits TraitsType; B2IBox() {} /// Create degenerate interval that's still empty explicit B2IBox(const B2ITuple& rTuple) : maRangeX(rTuple.getX()), maRangeY(rTuple.getY()) { } /// Create proper interval between the two given points B2IBox(sal_Int32 x1, sal_Int32 y1, sal_Int32 x2, sal_Int32 y2) : maRangeX(x1), maRangeY(y1) { maRangeX.expand(x2); maRangeY.expand(y2); } /// Create proper interval between the two given points B2IBox(const B2ITuple& rTuple1, const B2ITuple& rTuple2) : maRangeX(rTuple1.getX()), maRangeY(rTuple1.getY()) { expand( rTuple2 ); } /** Check if the interval set is empty @return false, if no value is in this set - having a single value included will still return false. */ bool isEmpty() const { return maRangeX.isEmpty() || maRangeY.isEmpty(); } bool operator==( const B2IBox& rBox ) const { return (maRangeX == rBox.maRangeX && maRangeY == rBox.maRangeY); } bool operator!=( const B2IBox& rBox ) const { return (maRangeX != rBox.maRangeX || maRangeY != rBox.maRangeY); } /// get lower bound of the set. returns arbitrary values for empty sets. sal_Int32 getMinX() const { return maRangeX.getMinimum(); } /// get lower bound of the set. returns arbitrary values for empty sets. sal_Int32 getMinY() const { return maRangeY.getMinimum(); } /// get upper bound of the set. returns arbitrary values for empty sets. sal_Int32 getMaxX() const { return maRangeX.getMaximum(); } /// get upper bound of the set. returns arbitrary values for empty sets. sal_Int32 getMaxY() const { return maRangeY.getMaximum(); } /// return difference between upper and lower X value. returns 0 for empty sets. sal_Int64 getWidth() const { return maRangeX.getRange(); } /// return difference between upper and lower Y value. returns 0 for empty sets. sal_Int64 getHeight() const { return maRangeY.getRange(); } /// yields true if point is contained in set bool isInside(const B2ITuple& rTuple) const { return ( maRangeX.isInside(rTuple.getX()) && maRangeY.isInside(rTuple.getY()) ); } /// add point to the set, expanding as necessary void expand(const B2ITuple& rTuple) { maRangeX.expand(rTuple.getX()); maRangeY.expand(rTuple.getY()); } /// calc set intersection void intersect(const B2IBox& rBox) { maRangeX.intersect(rBox.maRangeX); maRangeY.intersect(rBox.maRangeY); } private: BasicBox maRangeX; BasicBox maRangeY; }; } // end of namespace basegfx template< typename charT, typename traits > inline std::basic_ostream & operator <<( std::basic_ostream & stream, const basegfx::B2IBox& box ) { if (box.isEmpty()) return stream << "EMPTY"; else return stream << box.getWidth() << 'x' << box.getHeight() << "@(" << box.getMinX() << "," << box.getMinY() << ")"; } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ on value='distro/lhm/libreoffice-5-2+backports'>distro/lhm/libreoffice-5-2+backports LibreOffice 核心代码仓库文档基金会
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authorTomaž Vajngerl <tomaz.vajngerl@collabora.co.uk>2024-11-22 15:21:34 +0900
committerTomaž Vajngerl <quikee@gmail.com>2024-12-23 15:23:06 +0100
commit31427786778946b9d6f0f23731fdaae40e967e21 (patch)
tree7f5712a7df400b6d8644e20f325b54e2f1d6b0a6 /icon-themes/karasa_jaga/res/helpimg/zh-TW
parentb8ea5a835ec07d0f84cd8ec2d0dab976edcfcebe (diff)
pdf: move PDFStructureWriter into own file, rename to COSWriter