001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.mappaint.styleelement;
003
004import java.util.Objects;
005
006import org.openstreetmap.josm.data.osm.OsmPrimitive;
007import org.openstreetmap.josm.data.osm.Way;
008import org.openstreetmap.josm.data.osm.visitor.paint.MapPaintSettings;
009import org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer;
010import org.openstreetmap.josm.gui.mappaint.Cascade;
011import org.openstreetmap.josm.gui.mappaint.Environment;
012import org.openstreetmap.josm.gui.mappaint.Keyword;
013import org.openstreetmap.josm.tools.CheckParameterUtil;
014
015public class RepeatImageElement extends StyleElement {
016
017    public enum LineImageAlignment { TOP, CENTER, BOTTOM }
018
019    public MapImage pattern;
020    public float offset;
021    public float spacing;
022    public float phase;
023    public LineImageAlignment align;
024
025    public RepeatImageElement(Cascade c, MapImage pattern, float offset, float spacing, float phase, LineImageAlignment align) {
026        super(c, 2.9f);
027        CheckParameterUtil.ensureParameterNotNull(pattern);
028        CheckParameterUtil.ensureParameterNotNull(align);
029        this.pattern = pattern;
030        this.offset = offset;
031        this.spacing = spacing;
032        this.phase = phase;
033        this.align = align;
034    }
035
036    public static RepeatImageElement create(Environment env) {
037        MapImage pattern = NodeElement.createIcon(env, REPEAT_IMAGE_KEYS);
038        if (pattern == null)
039            return null;
040        Cascade c = env.mc.getCascade(env.layer);
041        float offset = c.get(REPEAT_IMAGE_OFFSET, 0f, Float.class);
042        float spacing = c.get(REPEAT_IMAGE_SPACING, 0f, Float.class);
043        float phase = -c.get(REPEAT_IMAGE_PHASE, 0f, Float.class);
044
045        LineImageAlignment align = LineImageAlignment.CENTER;
046        Keyword alignKW = c.get(REPEAT_IMAGE_ALIGN, Keyword.CENTER, Keyword.class);
047        if ("top".equals(alignKW.val)) {
048            align = LineImageAlignment.TOP;
049        } else if ("bottom".equals(alignKW.val)) {
050            align = LineImageAlignment.BOTTOM;
051        }
052
053        return new RepeatImageElement(c, pattern, offset, spacing, phase, align);
054    }
055
056    @Override
057    public void paintPrimitive(OsmPrimitive primitive, MapPaintSettings paintSettings, StyledMapRenderer painter,
058            boolean selected, boolean outermember, boolean member) {
059        Way w = (Way) primitive;
060        painter.drawRepeatImage(w, pattern, painter.isInactiveMode() || w.isDisabled(), offset, spacing, phase, align);
061    }
062
063    @Override
064    public boolean isProperLineStyle() {
065        return true;
066    }
067
068    @Override
069    public boolean equals(Object obj) {
070        if (this == obj) return true;
071        if (obj == null || getClass() != obj.getClass()) return false;
072        if (!super.equals(obj)) return false;
073        RepeatImageElement that = (RepeatImageElement) obj;
074        return Float.compare(that.offset, offset) == 0 &&
075                Float.compare(that.spacing, spacing) == 0 &&
076                Float.compare(that.phase, phase) == 0 &&
077                Objects.equals(pattern, that.pattern) &&
078                align == that.align;
079    }
080
081    @Override
082    public int hashCode() {
083        return Objects.hash(super.hashCode(), pattern, offset, spacing, phase, align);
084    }
085
086    @Override
087    public String toString() {
088        return "RepeatImageStyle{" + super.toString() + "pattern=[" + pattern +
089                "], offset=" + offset + ", spacing=" + spacing +
090                ", phase=" + (-phase) + ", align=" + align + '}';
091    }
092}