FixedWidthFont.cpp

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/*
Copyright (C) 2005 The Pentagram team

This program 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.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#include "pent_include.h"
#include "FixedWidthFont.h"

#include "Texture.h"
#include "IDataSource.h"
#include "ConfigFileManager.h"
#include "FileSystem.h"

FixedWidthFont * FixedWidthFont::Create(std::string iniroot)
{
        ConfigFileManager *config = ConfigFileManager::get_instance();
        FileSystem *filesys = FileSystem::get_instance();

        std::string     filename;
        if (!config->get(iniroot + "/font/path",filename)) {
                perr << "Error: 'path' key not found in font ini" << std::endl;
                return 0;
        }

        IDataSource *ds = filesys->ReadFile(filename);

        if (!ds) {
                perr << "Error: Unable to open file " << filename << std::endl;
                return 0;
        }

        Texture *fonttex = Texture::Create(ds, filename.c_str());

        if (!fonttex)
        {
                perr << "Error: Unable to read texture " << filename << std::endl;
                return 0;
        }

        delete ds;

        FixedWidthFont *fwf = new FixedWidthFont;

        fwf->tex = fonttex;

        if (!config->get(iniroot + "/font/width",fwf->width)) {
                fwf->width = fwf->tex->width / 16;
        }
        
        if (!config->get(iniroot + "/font/height",fwf->height)) {
                fwf->height = fwf->tex->height / 16;
        }

        if (!config->get(iniroot + "/font/align_x",fwf->align_x)) {
                for (int i = 0; i < 32; i++) {
                        if (fwf->width <= (1 << i)) {
                                fwf->align_x = 1 << i;
                                break;
                        }
                }
        }

        if (!config->get(iniroot + "/font/align_y",fwf->align_y)) {
                for (int i = 0; i < 32; i++) {
                        if (fwf->height <= (1 << i)) {
                                fwf->align_y = 1 << i;
                                break;
                        }
                }
        }

        return fwf;
}

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