source: josm/trunk/src/org/openstreetmap/josm/gui/mappaint/MapPaintStyles.java@ 999

package org.openstreetmap.josm.gui.mappaint;

import java.util.LinkedList;
import java.util.List;

import javax.swing.ImageIcon;

import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.gui.mappaint.ElemStyles;
import org.openstreetmap.josm.io.MirroredInputStream;
import org.openstreetmap.josm.tools.ImageProvider;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;

public class MapPaintStyles {

        private static ElemStyles styles = new ElemStyles();
        private static String iconDirs;
        
        public static ElemStyles getStyles()
        {
                return styles;
        }

        public static ImageIcon getIcon(String name, String styleName)
        {
                List<String> dirs = new LinkedList<String>();
                for(String fileset : iconDirs.split(";"))
                {
                        String[] a;
                        if(fileset.indexOf("=") >= 0)
                                a = fileset.split("=", 2);
                        else
                                a = new String[] {"", fileset};

                        /* non-prefixed path is generic path, always take it */
                        if(a[0].length() == 0 || styleName.equals(a[0]))
                                dirs.add(a[1]);
                }
                ImageIcon i = ImageProvider.getIfAvailable(dirs, "mappaint."+styleName, null, name);            
                if(i == null)
                {
                        System.out.println("Mappaint-Style \""+styleName+"\" icon \"" + name + "\" not found.");
                        i = ImageProvider.getIfAvailable(dirs, "mappaint."+styleName, null, "misc/no_icon.png");
                }
                return i;
        }

        public static void readFromPreferences() {
                /* don't prefix icon path, as it should be generic */
                String internalicon = "resource://images/styles/standard/;resource://images/styles/";
                String internalfile = "standard=resource://styles/standard/elemstyles.xml";

                iconDirs = Main.pref.get("mappaint.iconpaths");
                iconDirs = iconDirs == null || iconDirs.length() == 0 ? internalicon : iconDirs + ";" + internalicon;

                String file = Main.pref.get("mappaint.sources");
                file = file == null || file.length() == 0 ? internalfile : internalfile + ";" + file;

                for(String fileset : file.split(";"))
                {
                        try
                        {
                                String[] a;
                                if(fileset.indexOf("=") >= 0)
                                        a = fileset.split("=", 2);
                                else
                                        a = new String[] {"standard", fileset};
                                XMLReader xmlReader = XMLReaderFactory.createXMLReader();
                                ElemStyleHandler handler = new ElemStyleHandler(a[0]);
                                xmlReader.setContentHandler(handler);
                                xmlReader.setErrorHandler(handler);
                                xmlReader.parse(new InputSource(new MirroredInputStream(a[1])));
                        }
                        catch (Exception e)
                        {
                                System.out.println("Mappaint-Style problems: \"" + fileset + "\"");
                        }
                } 
                iconDirs = null;
        }

}