From b9337e22ce1dbf2eba0e8c8db294ae99f4111f91 Mon Sep 17 00:00:00 2001 From: Bjoern Michaelsen Date: Thu, 18 Apr 2013 18:26:28 +0200 Subject: execute move of global headers see https://gerrit.libreoffice.org/#/c/3367/ and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a --- include/vcl/regband.hxx | 142 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 include/vcl/regband.hxx (limited to 'include/vcl/regband.hxx') diff --git a/include/vcl/regband.hxx b/include/vcl/regband.hxx new file mode 100644 index 000000000000..0b60a801d83e --- /dev/null +++ b/include/vcl/regband.hxx @@ -0,0 +1,142 @@ +/* -*- 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 . + */ + +#ifndef _SV_REGBAND_HXX +#define _SV_REGBAND_HXX + +#include +#include + +/* ======================================================================= + +class ImplRegionBand + +This class handles one y-band of the region. In this band may contain one +or more seprarations in x-direction. The y-Band do not contain any +separation after creation. + +The separations are modified with basic clipping functions like Union and +Intersection - the Class will process the clipping for the actual band. + +The actual separations may be checked by functions like IsInside or +IsOver. + +======================================================================= */ + +// ------------------------ +// - ImplRegionBand-Types - +// ------------------------ + +// element for the list with x-separations +struct ImplRegionBandSep +{ + ImplRegionBandSep* mpNextSep; + long mnXLeft; + long mnXRight; + sal_Bool mbRemoved; +}; + +enum LineType { LINE_ASCENDING, LINE_DESCENDING, LINE_HORIZONTAL }; + +// element for the list with x-separations +struct ImplRegionBandPoint +{ + ImplRegionBandPoint* mpNextBandPoint; + long mnX; + long mnLineId; + sal_Bool mbEndPoint; + LineType meLineType; +}; + +// ------------------ +// - ImplRegionBand - +// ------------------ + +class ImplRegionBand +{ +public: + ImplRegionBand* mpNextBand; // pointer to the next element of the list + ImplRegionBand* mpPrevBand; // pointer to the previous element of the list (only used temporaery) + ImplRegionBandSep* mpFirstSep; // root of the list with x-separations + ImplRegionBandPoint* mpFirstBandPoint; // root of the list with lines + long mnYTop; // actual boundary of the band + long mnYBottom; + sal_Bool mbTouched; + + // create y-band with boundaries + ImplRegionBand( long nYTop, long nYBottom ); + /** copy y-band with with all data + @param theSourceBand + The new ImplRegionBand object will + be a copy of this band. + @param bIgnorePoints + When (the default) the + band points pointed to by + mpFirstBandPoint are not copied. + When they are copied. + You need the points when you are + planning to call ProcessPoints() + later on. + */ + ImplRegionBand( const ImplRegionBand & theSourceBand, + const bool bIgnorePoints = true); + ~ImplRegionBand(); + + long GetXLeftBoundary() const; + long GetXRightBoundary() const; + + // combine overlapping bands + sal_Bool OptimizeBand(); + + // generate separations from lines and process + // union with existing separations + void ProcessPoints(); + // insert point in the list for later processing + sal_Bool InsertPoint( long nX, long nLineID, + sal_Bool bEndPoint, LineType eLineType ); + + void Union( long nXLeft, long nXRight ); + void Intersect( long nXLeft, long nXRight ); + void Exclude( long nXLeft, long nXRight ); + void XOr( long nXLeft, long nXRight ); + + void MoveX( long nHorzMove ); + void ScaleX( double fHorzScale ); + + sal_Bool IsInside( long nX ); + + sal_Bool IsEmpty() const { return ((!mpFirstSep) && (!mpFirstBandPoint)); } + + sal_Bool operator==( const ImplRegionBand& rRegionBand ) const; + + /** Split the called band at the given vertical coordinate. After the + split the called band will cover the upper part not including nY. + The new band will cover the lower part including nY. + @param nY + The band is split at this y coordinate. The new, lower band + will include this very value. + @return + Returns the new, lower band. + */ + ImplRegionBand* SplitBand (const sal_Int32 nY); +}; + +#endif // _SV_REGBAND_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3