~ubuntu-branches/ubuntu/oneiric/tuxguitar/oneiric

package org.herac.tuxguitar.gui.tools.scale;

 

import java.io.File;

import java.util.ArrayList;

import java.util.List;

 

import org.herac.tuxguitar.gui.TuxGuitar;

import org.herac.tuxguitar.gui.tools.scale.xml.ScaleReader;

import org.herac.tuxguitar.gui.util.TGMusicKeyUtils;

import org.herac.tuxguitar.gui.util.TGFileUtils;

import org.herac.tuxguitar.song.models.TGScale;

 

public class ScaleManager {

        private static final String[] KEY_NAMES = TGMusicKeyUtils.getSharpKeyNames(TGMusicKeyUtils.PREFIX_SCALE);

        

        private static final String KEY_SEPARATOR = ",";

        

        public static final int NONE_SELECTION = -1;

        

        private List scales;

        

        private TGScale scale;

        

        private int selectionIndex;

        

        private int selectionKey;

        

        public ScaleManager(){

                this.scales = new ArrayList();

                this.scale = TuxGuitar.instance().getSongManager().getFactory().newScale();

                this.selectionKey = 0;

                this.selectionIndex = NONE_SELECTION;

                this.loadScales();

        }

        

        public TGScale getScale() {

                return this.scale;

        }

        

        public void selectScale(int index,int key){

                if(index == NONE_SELECTION){

                        getScale().clear();

                }

                else if(index >= 0 && index < this.scales.size()){

                        getScale().clear();

                        ScaleInfo info = (ScaleInfo)this.scales.get(index);

                        String[] keys = info.getKeys().split(KEY_SEPARATOR);

                        for (int i = 0; i < keys.length; i ++){

                                int note = (Integer.parseInt(keys[i]) - 1);

                                if(note >= 0 && note < 12){

                                        getScale().setNote(note,true);

                                }

                        }

                        getScale().setKey(key);

                }

                this.selectionIndex = index;

                this.selectionKey = key;

        }

        

        public String[] getScaleNames(){

                String[] names = new String[this.scales.size()];

                for(int i = 0;i < this.scales.size();i ++){

                        ScaleInfo info = (ScaleInfo)this.scales.get(i);

                        names[i] = info.getName();

                }

                return names;

        }

        

        public String[] getKeyNames(){

                return KEY_NAMES;

        }

        

        public int getSelectionIndex() {

                return this.selectionIndex;

        }

        

        public int getSelectionKey() {

                return this.selectionKey;

        }

        

        private void loadScales(){

                try{

                        new ScaleReader().loadScales(this.scales,getScalesFileName());

                } catch (Throwable e) {

                        e.printStackTrace();

                } 

        }

        

        private String getScalesFileName(){

                return TGFileUtils.PATH_SCALES + File.separator + "scales.xml";

        }

}