ParseUtils.java

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/*
 * This file is part of JXClient, the Fullscreen Java Crossfire Client.
 *
 * JXClient 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.
 *
 * JXClient 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 JXClient; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Copyright (C) 2005-2008 Yann Chachkoff.
 * Copyright (C) 2006-2011 Andreas Kirschbaum.
 */

package com.realtime.crossfire.jxclient.skin.io;

import com.realtime.crossfire.jxclient.gui.gauge.Orientation;
import com.realtime.crossfire.jxclient.gui.gauge.OrientationParser;
import com.realtime.crossfire.jxclient.settings.options.CheckBoxOption;
import com.realtime.crossfire.jxclient.settings.options.OptionException;
import com.realtime.crossfire.jxclient.settings.options.OptionManager;
import com.realtime.crossfire.jxclient.stats.StatsParser;
import com.realtime.crossfire.jxclient.util.NumberParser;
import java.awt.Color;
import java.io.IOException;
import java.io.LineNumberReader;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class ParseUtils {

    private ParseUtils() {
    }

    public static int parseStat(@NotNull final String name) throws IOException {
        try {
            return StatsParser.parseStat(name);
        } catch (final IllegalArgumentException ignored) {
            // ignore
        }

        throw new IOException("invalid stat name: "+name);
    }

    @NotNull
    public static Orientation parseOrientation(@NotNull final String name) throws IOException {
        try {
            return OrientationParser.parseOrientation(name);
        } catch (final IllegalArgumentException ignored) {
            // ignore
        }

        throw new IOException("invalid orientation: "+name);
    }

    @NotNull
    public static Color parseColor(@NotNull final String name) throws IOException {
        final Color color = parseColorNull(name);
        if (color != null) {
            return color;
        }
        throw new IOException("unknown color name "+name);
    }

    @Nullable
    public static Color parseColorNull(@NotNull final String name) {
        final int pos = name.lastIndexOf('/');
        if (pos == -1) {
            return parseColorName(name);
        }

        int alpha = 255;
        try {
            alpha = Math.round(255*NumberParser.parseFloat(name.substring(pos+1)));
        } catch (final IOException ignored) {
            // ignore
        }
        if (alpha < 0 || alpha > 255) {
            return parseColorName(name);
        }

        final String colorName = name.substring(0, pos);
        final Color color = parseColorName(colorName);
        if (color == null) {
            return null;
        }
        if (alpha == 255) {
            return color;
        }

        return new Color(color.getRed(), color.getGreen(), color.getBlue(), alpha);
    }

    @Nullable
    private static Color parseColorName(@NotNull final String name) {
        if (name.equals("BLACK")) {
            return Color.BLACK;
        }
        if (name.equals("BLUE")) {
            return Color.BLUE;
        }
        if (name.equals("DARK_GRAY")) {
            return Color.DARK_GRAY;
        }
        if (name.equals("GRAY")) {
            return Color.GRAY;
        }
        if (name.equals("WHITE")) {
            return Color.WHITE;
        }
        if (name.length() == 7 && name.charAt(0) == '#' && name.charAt(1) != '-') {
            try {
                return new Color(Integer.parseInt(name.substring(1), 16));
            } catch (final NumberFormatException ignored) {
                // ignore
            }
        }
        return null;
    }

    @NotNull
    public static String parseText(@NotNull final Args args, @NotNull final LineNumberReader lnr) throws IOException {
        final StringBuilder text = new StringBuilder();
        if (args.hasMore()) {
            text.append(args.get());
            while (args.hasMore()) {
                text.append(' ');
                text.append(args.get());
            }
        }
        if (text.toString().equals("<<EOF")) {
            text.setLength(0);
            while (true) {
                final String line = lnr.readLine();
                if (line == null) {
                    throw new IOException("EOF");
                }
                if (line.equals("EOF")) {
                    break;
                }
                if (line.startsWith("#")) {
                    continue;
                }

                text.append(line);
                text.append('\n');
            }
            if (text.length() > 0) {
                text.setLength(text.length()-1);
            }
        }

        return text.toString().replaceFirst("_$", " ");
    }

    @NotNull
    public static CheckBoxOption parseCheckBoxOption(@NotNull final String name, @NotNull final OptionManager optionManager) throws IOException {
        try {
            return optionManager.getCheckBoxOption(name);
        } catch (final OptionException ex) {
            throw new IOException(ex.getMessage(), ex);
        }
    }

}