// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.mappaint.styleelement;
import java.awt.Color;
import java.util.Objects;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.Relation;
import org.openstreetmap.josm.data.osm.Way;
import org.openstreetmap.josm.data.osm.visitor.paint.MapPaintSettings;
import org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer;
import org.openstreetmap.josm.data.preferences.IntegerProperty;
import org.openstreetmap.josm.gui.mappaint.Cascade;
import org.openstreetmap.josm.gui.mappaint.Environment;
import org.openstreetmap.josm.gui.mappaint.MapPaintStyles.IconReference;
import org.openstreetmap.josm.tools.CheckParameterUtil;
import org.openstreetmap.josm.tools.Utils;
/**
* This is the style that defines how an area is filled.
*/
public class AreaElement extends StyleElement {
/**
* The default opacity for the fill. For historical reasons in range 0.255.
*/
private static final IntegerProperty DEFAULT_FILL_ALPHA = new IntegerProperty("mappaint.fillalpha", 50);
/**
* If fillImage == null, color is the fill-color, otherwise
* an arbitrary color value sampled from the fillImage.
*
* The color may be fully transparent to indicate that the area should not be filled.
*/
public Color color;
/**
* An image to cover this area. May be null to disable this feature.
*/
public MapImage fillImage;
/**
* The text that should be written on this area.
* @deprecated Use {@link TextElement} instead.
*/
@Deprecated
public TextLabel text;
/**
* Fill the area only partially from the borders
* <p>
* Public access is discouraged.
* @see StyledMapRenderer#drawArea(Way, Color, MapImage, Float, Float, boolean, TextLabel)
*/
public Float extent;
/**
* Areas smaller than this are filled no matter what value {@link #extent} has.
* <p>
* Public access is discouraged.
* @see StyledMapRenderer#drawArea(Way, Color, MapImage, Float, Float, boolean, TextLabel)
*/
public Float extentThreshold;
protected AreaElement(Cascade c, Color color, MapImage fillImage, Float extent, Float extentThreshold) {
super(c, 1f);
CheckParameterUtil.ensureParameterNotNull(color);
this.color = color;
this.fillImage = fillImage;
this.extent = extent;
this.extentThreshold = extentThreshold;
}
/**
* Create a new {@link AreaElement}
* @param env The current style definitions
* @return The area element or <code>null</code> if the area should not be filled.
*/
public static AreaElement create(final Environment env) {
final Cascade c = env.mc.getCascade(env.layer);
MapImage fillImage = null;
Color color;
IconReference iconRef = c.get(FILL_IMAGE, null, IconReference.class);
if (iconRef != null) {
fillImage = new MapImage(iconRef.iconName, iconRef.source, false);
color = new Color(fillImage.getImage(false).getRGB(
fillImage.getWidth() / 2, fillImage.getHeight() / 2)
);
fillImage.alpha = Utils.clamp(Main.pref.getInteger("mappaint.fill-image-alpha", 255), 0, 255);
Integer pAlpha = Utils.colorFloat2int(c.get(FILL_OPACITY, null, float.class));
if (pAlpha != null) {
fillImage.alpha = pAlpha;
}
} else {
color = c.get(FILL_COLOR, null, Color.class);
if (color != null) {
float defaultOpacity = Utils.colorInt2float(DEFAULT_FILL_ALPHA.get());
float opacity = c.get(FILL_OPACITY, defaultOpacity, Float.class);
color = Utils.alphaMultiply(color, opacity);
}
}
if (color != null) {
Float extent = c.get(FILL_EXTENT, null, float.class);
Float extentThreshold = c.get(FILL_EXTENT_THRESHOLD, null, float.class);
return new AreaElement(c, color, fillImage, extent, extentThreshold);
} else {
return null;
}
}
@Override
public void paintPrimitive(OsmPrimitive osm, MapPaintSettings paintSettings, StyledMapRenderer painter,
boolean selected, boolean outermember, boolean member) {
Color myColor = color;
if (osm instanceof Way) {
if (color != null) {
if (selected) {
myColor = paintSettings.getSelectedColor(color.getAlpha());
} else if (outermember) {
myColor = paintSettings.getRelationSelectedColor(color.getAlpha());
}
}
painter.drawArea((Way) osm, myColor, fillImage, extent, extentThreshold, painter.isInactiveMode() || osm.isDisabled(), text);
} else if (osm instanceof Relation) {
if (color != null && (selected || outermember)) {
myColor = paintSettings.getRelationSelectedColor(color.getAlpha());
}
painter.drawArea((Relation) osm, myColor, fillImage, extent, extentThreshold, painter.isInactiveMode() || osm.isDisabled(), text);
}
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
if (!super.equals(obj)) return false;
AreaElement that = (AreaElement) obj;
return Objects.equals(color, that.color) &&
Objects.equals(fillImage, that.fillImage) &&
Objects.equals(extent, that.extent) &&
Objects.equals(extentThreshold, that.extentThreshold);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), color, fillImage, extent, extentThreshold);
}
@Override
public String toString() {
return "AreaElemStyle{" + super.toString() + "color=" + Utils.toString(color) +
" fillImage=[" + fillImage + "] extent=[" + extent + "] extentThreshold=[" + extentThreshold + "]}";
}
}