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Diffstat (limited to 'writerfilter/source/dmapper/WrapPolygonHandler.cxx')
| -rw-r--r-- | writerfilter/source/dmapper/WrapPolygonHandler.cxx | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/writerfilter/source/dmapper/WrapPolygonHandler.cxx b/writerfilter/source/dmapper/WrapPolygonHandler.cxx new file mode 100644 index 000000000..319fae5c4 --- /dev/null +++ b/writerfilter/source/dmapper/WrapPolygonHandler.cxx @@ -0,0 +1,214 @@ +/* -*- 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/drawing/PointSequence.hpp> +#include <com/sun/star/text/GraphicCrop.hpp> +#include <comphelper/sequence.hxx> +#include <tools/UnitConversion.hxx> + +#include <ooxml/resourceids.hxx> + +#include "WrapPolygonHandler.hxx" +#include "util.hxx" + +#include <sal/log.hxx> + +namespace writerfilter { + +using namespace com::sun::star; + +namespace dmapper { + +WrapPolygon::WrapPolygon() +{ +} + +WrapPolygon::~WrapPolygon() +{ +} + +void WrapPolygon::addPoint(const awt::Point & rPoint) +{ + mPoints.push_back(rPoint); +} + +WrapPolygon::Points_t::const_iterator WrapPolygon::begin() const +{ + return mPoints.begin(); +} + +WrapPolygon::Points_t::const_iterator WrapPolygon::end() const +{ + return mPoints.end(); +} + +WrapPolygon::Pointer_t WrapPolygon::move(const awt::Point & rPoint) const +{ + WrapPolygon::Pointer_t pResult(new WrapPolygon); + + Points_t::const_iterator aIt = begin(); + Points_t::const_iterator aItEnd = end(); + + while (aIt != aItEnd) + { + awt::Point aPoint(aIt->X + rPoint.X, aIt->Y + rPoint.Y); + pResult->addPoint(aPoint); + ++aIt; + } + + return pResult; +} + +WrapPolygon::Pointer_t WrapPolygon::scale(const Fraction & rFractionX, const Fraction & rFractionY) const +{ + WrapPolygon::Pointer_t pResult(new WrapPolygon); + + Points_t::const_iterator aIt = begin(); + Points_t::const_iterator aItEnd = end(); + + while (aIt != aItEnd) + { + awt::Point aPoint((Fraction(tools::Long(aIt->X)) * rFractionX).operator long(), (Fraction(tools::Long(aIt->Y)) * rFractionY).operator long()); + pResult->addPoint(aPoint); + ++aIt; + } + + return pResult; +} + +WrapPolygon::Pointer_t WrapPolygon::correctWordWrapPolygon(const awt::Size & rSrcSize) const +{ + WrapPolygon::Pointer_t pResult; + + const tools::Long nWrap100Percent = 21600; + + Fraction aMove(nWrap100Percent, rSrcSize.Width); + aMove = aMove * Fraction(convertTwipToMm100(15), 1); + awt::Point aMovePoint(aMove.operator long(), 0); + pResult = move(aMovePoint); + + Fraction aScaleX = nWrap100Percent / (nWrap100Percent + aMove); + Fraction aScaleY = nWrap100Percent / (nWrap100Percent - aMove); + pResult = pResult->scale(aScaleX, aScaleY); + + Fraction aScaleSrcX(rSrcSize.Width, nWrap100Percent); + Fraction aScaleSrcY(rSrcSize.Height, nWrap100Percent); + pResult = pResult->scale(aScaleSrcX, aScaleSrcY); + + return pResult; +} + +WrapPolygon::Pointer_t WrapPolygon::correctWordWrapPolygonPixel(const awt::Size & rSrcSize) const +{ + WrapPolygon::Pointer_t pResult; + + /* + * https://msdn.microsoft.com/en-us/library/ee342530.aspx + * + * Image wrapping polygons in Microsoft Word use a fixed coordinate space + * that is 21600 units x 21600 units. Coordinate (0,0) is the upper left + * corner of the image and coordinate (21600,21600) is the lower right + * corner of the image. Microsoft Word scales the size of the wrapping + * polygon units to fit the size of the image. The 21600 value is a legacy + * artifact from the drawing layer of early versions of Microsoft Office. + */ + const tools::Long nWrap100Percent = 21600; + + Fraction aScaleX(rSrcSize.Width, nWrap100Percent); + Fraction aScaleY(rSrcSize.Height, nWrap100Percent); + pResult = scale(aScaleX, aScaleY); + + return pResult; +} + +WrapPolygon::Pointer_t WrapPolygon::correctCrop(const awt::Size& rGraphicSize, + const text::GraphicCrop& rGraphicCrop) const +{ + WrapPolygon::Pointer_t pResult; + + Fraction aScaleX(rGraphicSize.Width - rGraphicCrop.Left - rGraphicCrop.Right, + rGraphicSize.Width); + Fraction aScaleY(rGraphicSize.Height - rGraphicCrop.Top - rGraphicCrop.Bottom, + rGraphicSize.Height); + pResult = scale(aScaleX, aScaleY); + + awt::Point aMove(rGraphicCrop.Left, rGraphicCrop.Top); + pResult = pResult->move(aMove); + + return pResult; +} + +drawing::PointSequenceSequence WrapPolygon::getPointSequenceSequence() const +{ + return { comphelper::containerToSequence(mPoints) }; +} + +WrapPolygonHandler::WrapPolygonHandler() + : LoggedProperties("WrapPolygonHandler") + , mpPolygon(new WrapPolygon) + , mnX(0) + , mnY(0) +{ +} + +WrapPolygonHandler::~WrapPolygonHandler() +{ +} + +void WrapPolygonHandler::lcl_attribute(Id Name, Value & val) +{ + sal_Int32 nIntValue = val.getInt(); + + switch(Name) + { + case NS_ooxml::LN_CT_Point2D_x: + mnX = nIntValue; + break; + case NS_ooxml::LN_CT_Point2D_y: + mnY = nIntValue; + break; + default: + SAL_WARN("writerfilter", "WrapPolygonHandler::lcl_attribute: unhandled token: " << Name); + break; + } +} + +void WrapPolygonHandler::lcl_sprm(Sprm & _sprm) +{ + switch (_sprm.getId()) + { + case NS_ooxml::LN_CT_WrapPath_lineTo: + case NS_ooxml::LN_CT_WrapPath_start: + { + resolveSprmProps(*this, _sprm); + + awt::Point aPoint(mnX, mnY); + mpPolygon->addPoint(aPoint); + } + break; + default: + SAL_WARN("writerfilter", "WrapPolygonHandler::lcl_sprm: unhandled token: " << _sprm.getId()); + break; + } +} + + +}} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |