// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.mappaint;
import java.awt.BasicStroke;
import java.awt.Color;
import java.util.Arrays;
import java.util.Objects;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.osm.Node;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.Way;
import org.openstreetmap.josm.data.osm.visitor.paint.MapPaintSettings;
import org.openstreetmap.josm.data.osm.visitor.paint.PaintColors;
import org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer;
import org.openstreetmap.josm.gui.mappaint.mapcss.Instruction.RelativeFloat;
import org.openstreetmap.josm.tools.Utils;
public class LineElemStyle extends ElemStyle {
public static LineElemStyle createSimpleLineStyle(Color color, boolean isAreaEdge) {
MultiCascade mc = new MultiCascade();
Cascade c = mc.getOrCreateCascade("default");
c.put(WIDTH, Keyword.DEFAULT);
c.put(COLOR, color != null ? color : PaintColors.UNTAGGED.get());
c.put(OPACITY, 1f);
if (isAreaEdge) {
c.put(Z_INDEX, -3f);
}
return createLine(new Environment(null, mc, "default", null));
}
public static final LineElemStyle UNTAGGED_WAY = createSimpleLineStyle(null, false);
private BasicStroke line;
public Color color;
public Color dashesBackground;
public float offset;
public float realWidth; // the real width of this line in meter
private BasicStroke dashesLine;
protected enum LineType {
NORMAL("", 3f),
CASING("casing-", 2f),
LEFT_CASING("left-casing-", 2.1f),
RIGHT_CASING("right-casing-", 2.1f);
public final String prefix;
public final float default_major_z_index;
LineType(String prefix, float default_major_z_index) {
this.prefix = prefix;
this.default_major_z_index = default_major_z_index;
}
}
protected LineElemStyle(Cascade c, float default_major_z_index, BasicStroke line, Color color, BasicStroke dashesLine, Color dashesBackground, float offset, float realWidth) {
super(c, default_major_z_index);
this.line = line;
this.color = color;
this.dashesLine = dashesLine;
this.dashesBackground = dashesBackground;
this.offset = offset;
this.realWidth = realWidth;
}
public static LineElemStyle createLine(Environment env) {
return createImpl(env, LineType.NORMAL);
}
public static LineElemStyle createLeftCasing(Environment env) {
LineElemStyle leftCasing = createImpl(env, LineType.LEFT_CASING);
if (leftCasing != null) {
leftCasing.isModifier = true;
}
return leftCasing;
}
public static LineElemStyle createRightCasing(Environment env) {
LineElemStyle rightCasing = createImpl(env, LineType.RIGHT_CASING);
if (rightCasing != null) {
rightCasing.isModifier = true;
}
return rightCasing;
}
public static LineElemStyle createCasing(Environment env) {
LineElemStyle casing = createImpl(env, LineType.CASING);
if (casing != null) {
casing.isModifier = true;
}
return casing;
}
private static LineElemStyle createImpl(Environment env, LineType type) {
Cascade c = env.mc.getCascade(env.layer);
Cascade c_def = env.mc.getCascade("default");
Float width;
switch (type) {
case NORMAL:
width = getWidth(c, WIDTH, getWidth(c_def, WIDTH, null));
break;
case CASING:
Float casingWidth = c.get(type.prefix + WIDTH, null, Float.class, true);
if (casingWidth == null) {
RelativeFloat rel_casingWidth = c.get(type.prefix + WIDTH, null, RelativeFloat.class, true);
if (rel_casingWidth != null) {
casingWidth = rel_casingWidth.val / 2;
}
}
if (casingWidth == null)
return null;
width = getWidth(c, WIDTH, getWidth(c_def, WIDTH, null));
if (width == null) {
width = 0f;
}
width += 2 * casingWidth;
break;
case LEFT_CASING:
case RIGHT_CASING:
width = getWidth(c, type.prefix + WIDTH, null);
break;
default:
throw new AssertionError();
}
if (width == null)
return null;
float realWidth = c.get(type.prefix + REAL_WIDTH, 0f, Float.class);
if (realWidth > 0 && MapPaintSettings.INSTANCE.isUseRealWidth()) {
/* if we have a "width" tag, try use it */
String widthTag = env.osm.get("width");
if (widthTag == null) {
widthTag = env.osm.get("est_width");
}
if (widthTag != null) {
try {
realWidth = Float.valueOf(widthTag);
} catch(NumberFormatException nfe) {
Main.warn(nfe);
}
}
}
Float offset = c.get(OFFSET, 0f, Float.class);
switch (type) {
case NORMAL:
break;
case CASING:
offset += c.get(type.prefix + OFFSET, 0f, Float.class);
break;
case LEFT_CASING:
case RIGHT_CASING:
{
Float baseWidthOnDefault = getWidth(c_def, WIDTH, null);
Float baseWidth = getWidth(c, WIDTH, baseWidthOnDefault);
if (baseWidth == null || baseWidth < 2f) {
baseWidth = 2f;
}
float casingOffset = c.get(type.prefix + OFFSET, 0f, Float.class);
casingOffset += baseWidth / 2 + width / 2;
/* flip sign for the right-casing-offset */
if (type == LineType.RIGHT_CASING) {
casingOffset *= -1f;
}
offset += casingOffset;
break;
}
}
int alpha = 255;
Color color = c.get(type.prefix + COLOR, null, Color.class);
if (color != null) {
alpha = color.getAlpha();
}
if (type == LineType.NORMAL && color == null) {
color = c.get(FILL_COLOR, null, Color.class);
}
if (color == null) {
color = PaintColors.UNTAGGED.get();
}
Integer pAlpha = Utils.color_float2int(c.get(type.prefix + OPACITY, null, Float.class));
if (pAlpha != null) {
alpha = pAlpha;
}
color = new Color(color.getRed(), color.getGreen(), color.getBlue(), alpha);
float[] dashes = c.get(type.prefix + DASHES, null, float[].class, true);
if (dashes != null) {
boolean hasPositive = false;
for (float f : dashes) {
if (f > 0) {
hasPositive = true;
}
if (f < 0) {
dashes = null;
break;
}
}
if (!hasPositive || (dashes != null && dashes.length == 0)) {
dashes = null;
}
}
float dashesOffset = c.get(type.prefix + DASHES_OFFSET, 0f, Float.class);
Color dashesBackground = c.get(type.prefix + DASHES_BACKGROUND_COLOR, null, Color.class);
if (dashesBackground != null) {
pAlpha = Utils.color_float2int(c.get(type.prefix + DASHES_BACKGROUND_OPACITY, null, Float.class));
if (pAlpha != null) {
alpha = pAlpha;
}
dashesBackground = new Color(dashesBackground.getRed(), dashesBackground.getGreen(),
dashesBackground.getBlue(), alpha);
}
Integer cap = null;
Keyword capKW = c.get(type.prefix + "linecap", null, Keyword.class);
if (capKW != null) {
if ("none".equals(capKW.val)) {
cap = BasicStroke.CAP_BUTT;
} else if ("round".equals(capKW.val)) {
cap = BasicStroke.CAP_ROUND;
} else if ("square".equals(capKW.val)) {
cap = BasicStroke.CAP_SQUARE;
}
}
if (cap == null) {
cap = dashes != null ? BasicStroke.CAP_BUTT : BasicStroke.CAP_ROUND;
}
Integer join = null;
Keyword joinKW = c.get(type.prefix + "linejoin", null, Keyword.class);
if (joinKW != null) {
if ("round".equals(joinKW.val)) {
join = BasicStroke.JOIN_ROUND;
} else if ("miter".equals(joinKW.val)) {
join = BasicStroke.JOIN_MITER;
} else if ("bevel".equals(joinKW.val)) {
join = BasicStroke.JOIN_BEVEL;
}
}
if (join == null) {
join = BasicStroke.JOIN_ROUND;
}
float miterlimit = c.get(type.prefix + "miterlimit", 10f, Float.class);
if (miterlimit < 1f) {
miterlimit = 10f;
}
BasicStroke line = new BasicStroke(width, cap, join, miterlimit, dashes, dashesOffset);
BasicStroke dashesLine = null;
if (dashes != null && dashesBackground != null) {
float[] dashes2 = new float[dashes.length];
System.arraycopy(dashes, 0, dashes2, 1, dashes.length - 1);
dashes2[0] = dashes[dashes.length-1];
dashesLine = new BasicStroke(width, cap, join, miterlimit, dashes2, dashes2[0] + dashesOffset);
}
return new LineElemStyle(c, type.default_major_z_index, line, color, dashesLine, dashesBackground, offset, realWidth);
}
@Override
public void paintPrimitive(OsmPrimitive primitive, MapPaintSettings paintSettings, StyledMapRenderer painter, boolean selected, boolean member) {
Way w = (Way)primitive;
/* show direction arrows, if draw.segment.relevant_directions_only is not set,
the way is tagged with a direction key
(even if the tag is negated as in oneway=false) or the way is selected */
boolean showOrientation = !isModifier && (selected || paintSettings.isShowDirectionArrow()) && !paintSettings.isUseRealWidth();
boolean showOneway = !isModifier && !selected &&
!paintSettings.isUseRealWidth() &&
paintSettings.isShowOnewayArrow() && w.hasDirectionKeys();
boolean onewayReversed = w.reversedDirection();
/* head only takes over control if the option is true,
the direction should be shown at all and not only because it's selected */
boolean showOnlyHeadArrowOnly = showOrientation && !selected && paintSettings.isShowHeadArrowOnly();
Node lastN;
Color myDashedColor = dashesBackground;
BasicStroke myLine = line, myDashLine = dashesLine;
if (realWidth > 0 && paintSettings.isUseRealWidth() && !showOrientation) {
float myWidth = (int) (100 / (float) (painter.getCircum() / realWidth));
if (myWidth < line.getLineWidth()) {
myWidth = line.getLineWidth();
}
myLine = new BasicStroke(myWidth, line.getEndCap(), line.getLineJoin(),
line.getMiterLimit(), line.getDashArray(), line.getDashPhase());
if (dashesLine != null) {
myDashLine = new BasicStroke(myWidth, dashesLine.getEndCap(), dashesLine.getLineJoin(),
dashesLine.getMiterLimit(), dashesLine.getDashArray(), dashesLine.getDashPhase());
}
}
Color myColor = color;
if (selected) {
myColor = paintSettings.getSelectedColor(color.getAlpha());
} else if (member) {
myColor = paintSettings.getRelationSelectedColor(color.getAlpha());
} else if(w.isDisabled()) {
myColor = paintSettings.getInactiveColor();
myDashedColor = paintSettings.getInactiveColor();
}
painter.drawWay(w, myColor, myLine, myDashLine, myDashedColor, offset, showOrientation,
showOnlyHeadArrowOnly, showOneway, onewayReversed);
if(paintSettings.isShowOrderNumber() && !painter.isInactiveMode()) {
int orderNumber = 0;
lastN = null;
for(Node n : w.getNodes()) {
if(lastN != null) {
orderNumber++;
painter.drawOrderNumber(lastN, n, orderNumber, myColor);
}
lastN = n;
}
}
}
@Override
public boolean isProperLineStyle() {
return !isModifier;
}
@Override
public boolean equals(Object obj) {
if (obj == null || getClass() != obj.getClass())
return false;
if (!super.equals(obj))
return false;
final LineElemStyle other = (LineElemStyle) obj;
return Objects.equals(line, other.line) &&
Objects.equals(color, other.color) &&
Objects.equals(dashesLine, other.dashesLine) &&
Objects.equals(dashesBackground, other.dashesBackground) &&
offset == other.offset &&
realWidth == other.realWidth;
}
@Override
public int hashCode() {
int hash = super.hashCode();
hash = 29 * hash + line.hashCode();
hash = 29 * hash + color.hashCode();
hash = 29 * hash + (dashesLine != null ? dashesLine.hashCode() : 0);
hash = 29 * hash + (dashesBackground != null ? dashesBackground.hashCode() : 0);
hash = 29 * hash + Float.floatToIntBits(offset);
hash = 29 * hash + Float.floatToIntBits(realWidth);
return hash;
}
@Override
public String toString() {
return "LineElemStyle{" + super.toString() + "width=" + line.getLineWidth() +
" realWidth=" + realWidth + " color=" + Utils.toString(color) +
" dashed=" + Arrays.toString(line.getDashArray()) +
(line.getDashPhase() == 0f ? "" : " dashesOffses=" + line.getDashPhase()) +
" dashedColor=" + Utils.toString(dashesBackground) +
" linejoin=" + linejoinToString(line.getLineJoin()) +
" linecap=" + linecapToString(line.getEndCap()) +
(offset == 0 ? "" : " offset=" + offset) +
'}';
}
public String linejoinToString(int linejoin) {
switch (linejoin) {
case BasicStroke.JOIN_BEVEL: return "bevel";
case BasicStroke.JOIN_ROUND: return "round";
case BasicStroke.JOIN_MITER: return "miter";
default: return null;
}
}
public String linecapToString(int linecap) {
switch (linecap) {
case BasicStroke.CAP_BUTT: return "none";
case BasicStroke.CAP_ROUND: return "round";
case BasicStroke.CAP_SQUARE: return "square";
default: return null;
}
}
}