001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.mappaint;
003
004import static org.openstreetmap.josm.tools.Utils.equal;
005
006import java.awt.Color;
007
008import org.openstreetmap.josm.Main;
009import org.openstreetmap.josm.data.osm.OsmPrimitive;
010import org.openstreetmap.josm.data.osm.Relation;
011import org.openstreetmap.josm.data.osm.Way;
012import org.openstreetmap.josm.data.osm.visitor.paint.MapPaintSettings;
013import org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer;
014import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
015import org.openstreetmap.josm.gui.mappaint.MapPaintStyles.IconReference;
016import org.openstreetmap.josm.tools.CheckParameterUtil;
017import org.openstreetmap.josm.tools.Utils;
018
019public class AreaElemStyle extends ElemStyle
020{
021    /**
022     * If fillImage == null, color is the fill-color, otherwise
023     * an arbitrary color value sampled from the fillImage
024     */
025    public Color color;
026    public MapImage fillImage;
027    public TextElement text;
028
029    protected AreaElemStyle(Cascade c, Color color, MapImage fillImage, TextElement text) {
030        super(c, 1f);
031        CheckParameterUtil.ensureParameterNotNull(color);
032        this.color = color;
033        this.fillImage = fillImage;
034        this.text = text;
035    }
036
037    public static AreaElemStyle create(Cascade c) {
038        MapImage fillImage = null;
039        Color color = null;
040
041        IconReference iconRef = c.get(FILL_IMAGE, null, IconReference.class);
042        if (iconRef != null) {
043            fillImage = new MapImage(iconRef.iconName, iconRef.source);
044            fillImage.getImage();
045
046            color = new Color(fillImage.getImage().getRGB(
047                    fillImage.getWidth() / 2, fillImage.getHeight() / 2)
048            );
049
050            fillImage.alpha = Math.min(255, Math.max(0, Integer.valueOf(Main.pref.getInteger("mappaint.fill-image-alpha", 255))));
051            Integer pAlpha = Utils.color_float2int(c.get(FILL_OPACITY, null, float.class));
052            if (pAlpha != null) {
053                fillImage.alpha = pAlpha;
054            }
055        } else {
056            color = c.get(FILL_COLOR, null, Color.class);
057            if (color != null) {
058                int alpha = Math.min(255, Math.max(0, Integer.valueOf(Main.pref.getInteger("mappaint.fillalpha", 50))));
059                Integer pAlpha = Utils.color_float2int(c.get(FILL_OPACITY, null, float.class));
060                if (pAlpha != null) {
061                    alpha = pAlpha;
062                }
063                color = new Color(color.getRed(), color.getGreen(), color.getBlue(), alpha);
064            }
065        }
066
067        TextElement text = null;
068        Keyword textPos = c.get(TEXT_POSITION, null, Keyword.class);
069        if (textPos == null || Utils.equal(textPos.val, "center")) {
070            text = TextElement.create(c, PaintColors.AREA_TEXT.get(), true);
071        }
072
073        if (color != null)
074            return new AreaElemStyle(c, color, fillImage, text);
075        else
076            return null;
077    }
078
079    @Override
080    public void paintPrimitive(OsmPrimitive osm, MapPaintSettings paintSettings, StyledMapRenderer painter, boolean selected, boolean member) {
081        if (osm instanceof Way)
082        {
083            Color myColor = color;
084            if (color != null) {
085                if (osm.isSelected()) {
086                    myColor = paintSettings.getSelectedColor(color.getAlpha());
087                }
088            }
089            painter.drawArea((Way) osm, myColor, fillImage, text);
090        } else if (osm instanceof Relation)
091        {
092            Color myColor = color;
093            if (color != null) {
094                if (selected) {
095                    myColor = paintSettings.getRelationSelectedColor(color.getAlpha());
096                }
097            }
098            painter.drawArea((Relation) osm, myColor, fillImage, text);
099        }
100    }
101
102    @Override
103    public boolean equals(Object obj) {
104        if (obj == null || getClass() != obj.getClass())
105            return false;
106        if (!super.equals(obj))
107            return false;
108        AreaElemStyle other = (AreaElemStyle) obj;
109        // we should get the same image object due to caching
110        if (!equal(fillImage, other.fillImage))
111            return false;
112        if (!equal(color, other.color))
113            return false;
114        if (!equal(text, other.text))
115            return false;
116        return true;
117    }
118
119    @Override
120    public int hashCode() {
121        int hash = 3;
122        hash = 61 * hash + color.hashCode();
123        hash = 61 * hash + (fillImage != null ? fillImage.hashCode() : 0);
124        hash = 61 * hash + (text != null ? text.hashCode() : 0);
125        return hash;
126    }
127
128    @Override
129    public String toString() {
130        return "AreaElemStyle{" + super.toString() + "color=" + Utils.toString(color) +
131                " fillImage=[" + fillImage + "]}";
132    }
133}