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/* -*- 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 <basegfx/point/b2dpoint.hxx>
#include <basegfx/range/b2drectangle.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <sal/log.hxx>
#include "emfpregion.hxx"
#include "emfppath.hxx"
namespace emfplushelper
{
EMFPRegion::EMFPRegion()
{
}
EMFPRegion::~EMFPRegion()
{
}
::basegfx::B2DPolyPolygon EMFPRegion::ReadRegionNode(SvStream& s, EmfPlusHelperData& rR)
{
// Regions are specified as a binary tree of region nodes, and each node must either be a terminal node
// (RegionNodeDataTypeRect, RegionNodeDataTypePath, RegionNodeDataTypeEmpty, RegionNodeDataTypeInfinite)
// or specify one or two child nodes
// (RegionNodeDataTypeAnd, RegionNodeDataTypeOr, RegionNodeDataTypeXor,
// RegionNodeDataTypeExclude, RegionNodeDataTypeComplement).
sal_uInt32 dataType;
::basegfx::B2DPolyPolygon polygon;
s.ReadUInt32(dataType);
SAL_INFO("drawinglayer", "EMF+\t Region node data type 0x" << std::hex << dataType << std::dec);
switch (dataType)
{
case RegionNodeDataTypeAnd: // CombineModeIntersect
case RegionNodeDataTypeOr: // CombineModeUnion
case RegionNodeDataTypeXor: // CombineModeXOR
case RegionNodeDataTypeExclude: // CombineModeExclude
case RegionNodeDataTypeComplement: // CombineModeComplement
{
::basegfx::B2DPolyPolygon leftPolygon = ReadRegionNode(s, rR);
::basegfx::B2DPolyPolygon rightPolygon = ReadRegionNode(s, rR);
polygon = EmfPlusHelperData::combineClip(leftPolygon, dataType, rightPolygon);
break;
}
case RegionNodeDataTypeRect:
{
float dx, dy, dw, dh;
s.ReadFloat(dx).ReadFloat(dy).ReadFloat(dw).ReadFloat(dh);
SAL_INFO("drawinglayer", "EMF+\t\t RegionNodeDataTypeRect x:" << dx << ", y:" << dy <<
", width:" << dw << ", height:" << dh);
const ::basegfx::B2DPoint mappedStartPoint(rR.Map(dx, dy));
const ::basegfx::B2DPoint mappedEndPoint(rR.Map(dx + dw, dy + dh));
polygon = ::basegfx::B2DPolyPolygon(
::basegfx::utils::createPolygonFromRect(
::basegfx::B2DRectangle(
mappedStartPoint.getX(),
mappedStartPoint.getY(),
mappedEndPoint.getX(),
mappedEndPoint.getY())));
break;
}
case RegionNodeDataTypePath:
{
sal_Int32 pathLength;
s.ReadInt32(pathLength);
SAL_INFO("drawinglayer", "EMF+\t\t RegionNodeDataTypePath, Path Length: " << pathLength << " bytes");
sal_uInt32 header, pathFlags;
sal_Int32 points;
s.ReadUInt32(header).ReadInt32(points).ReadUInt32(pathFlags);
SAL_INFO("drawinglayer", "EMF+\t\t header: 0x" << std::hex << header <<
" points: " << std::dec << points << " additional flags: 0x" << std::hex << pathFlags << std::dec);
EMFPPath path(points);
path.Read(s, pathFlags);
polygon = path.GetPolygon(rR);
break;
}
case RegionNodeDataTypeEmpty:
{
SAL_INFO("drawinglayer", "EMF+\t\t RegionNodeDataTypeEmpty");
SAL_WARN("drawinglayer", "EMF+\t\t TODO we need to set empty polygon here");
polygon = ::basegfx::B2DPolyPolygon();
break;
}
case RegionNodeDataTypeInfinite:
{
SAL_INFO("drawinglayer", "EMF+\t\t RegionNodeDataTypeInfinite");
polygon = ::basegfx::B2DPolyPolygon();
break;
}
default:
{
SAL_WARN("drawinglayer", "EMF+\t\t Unhandled region type: 0x" << std::hex << dataType << std::dec);
polygon = ::basegfx::B2DPolyPolygon();
}
}
return polygon;
}
void EMFPRegion::ReadRegion(SvStream& s, EmfPlusHelperData& rR)
{
sal_uInt32 header, count;
s.ReadUInt32(header).ReadUInt32(count);
// An array should be RegionNodeCount+1 of EmfPlusRegionNode objects.
SAL_INFO("drawinglayer", "EMF+\t version: 0x" << std::hex << header << std::dec << ", region node count: " << count);
regionPolyPolygon = ReadRegionNode(s, rR);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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