source: josm/trunk/src/org/openstreetmap/josm/gui/mappaint/LineElemStyle.java@ 990

package org.openstreetmap.josm.gui.mappaint;

import java.awt.Color;
import java.util.Collection;

public class LineElemStyle extends ElemStyle implements Comparable<LineElemStyle>
{
        public int width;
        public int realWidth; //the real width of this line in meter
        public Color color;
        public boolean dashed;

        public boolean over;
        public enum WidthMode { ABSOLUTE, PERCENT, OFFSET };
        public WidthMode widthMode;

        public Collection<LineElemStyle> overlays;

        public LineElemStyle(LineElemStyle s, long maxScale, long minScale) {
                this.width = s.width;
                this.realWidth = s.realWidth;
                this.color = s.color;
                this.dashed = s.dashed;
                this.over = s.over;
                this.widthMode = s.widthMode;

                this.priority = s.priority;
                this.maxScale = maxScale;
                this.minScale = minScale;
        }

        public LineElemStyle(LineElemStyle s, Collection<LineElemStyle> overlays) {
                this.width = s.width;
                this.realWidth = s.realWidth;
                this.color = s.color;
                this.dashed = s.dashed;
                this.over = s.over;
                this.widthMode = s.widthMode;

                this.priority = s.priority;
                this.maxScale = s.maxScale;
                this.minScale = s.minScale;

                this.overlays = overlays;
        }

        public LineElemStyle() { init(); }

        public void init()
        {
                width = 1;
                realWidth = 0;
                dashed = false;
                priority = 0;
                color = null;
                over = true; // only used for line modifications
                widthMode = WidthMode.ABSOLUTE;
                overlays = null;
        };

        // get width for overlays
        public int getWidth(int ref)
        {
                int res;
                if(widthMode == WidthMode.ABSOLUTE)
                        res = width;
                else if(widthMode == WidthMode.OFFSET)
                        res = ref + width;
                else
                {
                        if(width < 0)
                                res = 0;
                        else
                                res = ref*width/100;
                }
                return res <= 0 ? 1 : res;
        }

        public int compareTo(LineElemStyle s)
        {
                if(s.priority != priority)
                        return s.priority > priority ? 1 : -1;
                if(!over && s.over)
                        return -1;
                // we have no idea how to order other objects :-)
                return 0;
        }
}