79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include "Exception.h"
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#include "ImageLayer.h"
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#include "Layer.h"
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#include <osgTerrain/TerrainTile>
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#include <osgDB/ReadFile>
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using namespace ive;
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void ImageLayer::write(DataOutputStream* out)
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{
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// Write Layer's identification.
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out->writeInt(IVEIMAGELAYER);
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// If the osg class is inherited by any other class we should also write this to file.
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osgTerrain::Layer* layer = dynamic_cast<osgTerrain::Layer*>(this);
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if (layer)
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((ive::Layer*)(layer))->write(out);
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else
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throw Exception("ImageLayer::write(): Could not cast this osgLayer::ImageLayer to an osgTerrain::Layer.");
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IncludeImageMode imMode = out->getIncludeImageMode(getImage());
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if (getFileName().empty() && imMode==IMAGE_REFERENCE_FILE) imMode = IMAGE_INCLUDE_DATA;
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out->writeChar(imMode);
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out->writeImage(imMode,getImage());
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}
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void ImageLayer::read(DataInputStream* in)
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{
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// Peek on Layer's identification.
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int id = in->peekInt();
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if (id != IVEIMAGELAYER)
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throw Exception("ImageLayer::read(): Expected ImageLayer identification.");
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// Read Layer's identification.
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id = in->readInt();
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// If the osg class is inherited by any other class we should also read this from file.
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osgTerrain::Layer* layer = dynamic_cast<osgTerrain::Layer*>(this);
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if (layer)
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((ive::Layer*)(layer))->read(in);
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else
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throw Exception("ImageLayer::read(): Could not cast this osgLayer::Layer to an osg::Group.");
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bool deferExternalLayerLoading = osgTerrain::TerrainTile::getTileLoadedCallback().valid() ?
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osgTerrain::TerrainTile::getTileLoadedCallback()->deferExternalLayerLoading() : false;
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// Should we read image data from stream
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IncludeImageMode includeImg = (IncludeImageMode)in->readChar();
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if (includeImg==IMAGE_REFERENCE_FILE && deferExternalLayerLoading)
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{
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setFileName(in->readString());
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}
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else
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{
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setImage(in->readImage(includeImg));
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}
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}
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