ImageID.cpp

Go to the documentation of this file.

////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    Scorched3D is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#include <common/ImageID.h>
#include <common/Defines.h>
#include <XML/XMLParser.h>

ImageID::ImageID()
{
}

ImageID::~ImageID()
{
}

bool ImageID::initFromString(
                const char *type,
                const char *imageName,
                const char *alphaName,
                bool invert)
{
        type_ = type;
        imageName_ = imageName;
        alphaName_ = alphaName;
        invert_ = invert;
        return true;
}


bool ImageID::initFromNode(const char *directory, XMLNode *imageNode)
{
        XMLNode *typeNode = 0;
        if (!imageNode->getNamedParameter("type", typeNode)) return false;
        type_ = typeNode->getContent();
        if (0 != strcmp("bmp", type_.c_str()) &&
                0 != strcmp("png", type_.c_str()))
        {
                return imageNode->returnError(
                        S3D::formatStringBuffer(
                                "Unknown image type \"%s\"",
                                type_.c_str()));
        }

        std::string image, alpha;
        if (!imageNode->getNamedChild("image", image)) return false;
        imageName_ = std::string(directory) + std::string("/") + image;
        if (!S3D::fileExists(S3D::getDataFile(imageName_.c_str())))
        {
                return imageNode->returnError(
                        S3D::formatStringBuffer(
                                "Image file \"%s\" does not exist",
                                imageName_.c_str()));
        }

        if (imageNode->getNamedChild("alpha", alpha, false))
        {
                alphaName_ = std::string(directory) + std::string("/") + alpha;
                if (!S3D::fileExists(S3D::getDataFile(alphaName_.c_str())))
                {
                        return imageNode->returnError(
                                S3D::formatStringBuffer(
                                        "Alpha file \"%s\" does not exist",
                                        alphaName_.c_str()));
                        return false;
                }
        }

        invert_ = false;
        imageNode->getNamedChild("invert", invert_, false);

        return imageNode->failChildren();
}

const char *ImageID::getStringHash()
{ 
        hash_ = imageName_ + "-" + alphaName_ + (invert_?"A":"B");
        return hash_.c_str(); 
}

---