/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.circuit.appear;
import java.util.Map;
import org.w3c.dom.Element;
import com.cburch.draw.model.AbstractCanvasObject;
import com.cburch.draw.shapes.SvgReader;
import com.cburch.logisim.data.Direction;
import com.cburch.logisim.data.Location;
import com.cburch.logisim.instance.Instance;
public class AppearanceSvgReader {
public static AbstractCanvasObject createShape(Element elt, Map<Location, Instance> pins) {
String name = elt.getTagName();
if (name.equals("circ-anchor") || name.equals("circ-origin")) {
Location loc = getLocation(elt);
AbstractCanvasObject ret = new AppearanceAnchor(loc);
if (elt.hasAttribute("facing")) {
Direction facing = Direction.parse(elt.getAttribute("facing"));
ret.setValue(AppearanceAnchor.FACING, facing);
}
return ret;
} else if (name.equals("circ-port")) {
Location loc = getLocation(elt);
String[] pinStr = elt.getAttribute("pin").split(",");
Location pinLoc = Location.create(Integer.parseInt(pinStr[0].trim()),
Integer.parseInt(pinStr[1].trim()));
Instance pin = pins.get(pinLoc);
if (pin == null) {
return null;
} else {
return new AppearancePort(loc, pin);
}
} else {
return SvgReader.createShape(elt);
}
}
private static Location getLocation(Element elt) {
double x = Double.parseDouble(elt.getAttribute("x"));
double y = Double.parseDouble(elt.getAttribute("y"));
double w = Double.parseDouble(elt.getAttribute("width"));
double h = Double.parseDouble(elt.getAttribute("height"));
int px = (int) Math.round(x + w / 2);
int py = (int) Math.round(y + h / 2);
return Location.create(px, py);
}
}