Tinyray-DotCode (2007)

Die Java−Klasse DotCode ist hier als

Visitor realisiert.

DotCode.java


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import java.util.Iterator; /** * Die Klasse DotCode implementiert einen Besucher (Visitor), * der aus einem Syntaxbaum, der mit Hilfe von LanguageKit erzeugt ist, * einen Dot-Code. / public class DotCode implements Visitor<String, String> { private final static String NEWLINE = "\r\n"; private final static String INDENT = "\t"; private final static String BREAK = NEWLINE + INDENT; private final static String ARROW = " -> "; private final static String TERMINATOR = ";"; private final static String NODE = "node"; private final static String EDGE = "edge"; private boolean compact; private int indexer; private boolean color; private String label(String string) { return "[label=\"" + string + "\"]"; } public DotCode() { this(false); } public DotCode(boolean compact) { this.compact = compact; this.indexer = 0; this.color = false; } public String visit(Tinyray tinyray, String parent) { String node = NODE + indexer++; String result = ""; // Header result += "// Automatisch generierter Dot-Code"; result += NEWLINE; result += "// $ dot -Tpng mein.dot -o mein.png"; result += NEWLINE; result += "// Herkunft: Tinyray (http://www.stefan-baur.de)"; result += NEWLINE; result += NEWLINE; // Dot-Graph result += "digraph TinyrayGraph {"; // Dot-Parameter result += NEWLINE; result += BREAK + "graph[rankdir=LR]" + TERMINATOR; result += BREAK + "graph[ranksep=0.3]" + TERMINATOR; result += BREAK + "edge[fontname=\"Arial\"]" + TERMINATOR; result += BREAK + "edge[fontsize=11]" + TERMINATOR; result += BREAK + "edge[fontcolor=\"#333333\"]" + TERMINATOR; result += BREAK + "edge[color=\"#333333\"]" + TERMINATOR; result += BREAK + "node[height=0.08]" + TERMINATOR; result += BREAK + "node[fontname=\"Arial\"]" + TERMINATOR; result += BREAK + "node[fontsize=10]" + TERMINATOR; result += BREAK + "node[fontcolor=\"#333333\"]" + TERMINATOR; result += BREAK + "node[color=\"#333333\"]" + TERMINATOR; result += NEWLINE; // Tinyray-Knoten Dot-Code result += BREAK + node + this.label("Tinyray") + TERMINATOR; result += BREAK + node + TERMINATOR; // Besuche camera result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += tinyray.camera.accept(this, node); // Besuche ambience result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += tinyray.ambience.accept(this, node); // Besuche background result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += tinyray.background.accept(this, node); // Besuche fog result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += tinyray.fog.accept(this, node); // Besuche suns Iterator<Sun> suns = tinyray.suns.iterator(); while (suns.hasNext()) { result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += suns.next().accept(this, node); } // Besuche Defaults und Geoobjekte Iterator<Visitable> visitables = tinyray.visitables.iterator(); while (visitables.hasNext()) { result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += visitables.next().accept(this, node); } result += NEWLINE; result += "}"; // Sourcecode result += NEWLINE; result += NEWLINE; result += "// Quelle: Tinyray-Code"; result += NEWLINE; result += "//"; result += NEWLINE; result += tinyray.accept(new PrettyPrint(), "// "); result += NEWLINE; return result; } public String visit(Camera camera, String parent) { String node = NODE + indexer++; String result = ""; // Camera-Knoten Dot-Code result += BREAK + node + this.label("Camera") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche location result += NEWLINE; result += BREAK + EDGE + this.label("location") + TERMINATOR; result += camera.location.accept(this, node); // Besuche lookAt result += NEWLINE; result += BREAK + EDGE + this.label("look at") + TERMINATOR; result += camera.lookAt.accept(this, node); // Besuche up result += NEWLINE; result += BREAK + EDGE + this.label("up") + TERMINATOR; result += camera.up.accept(this, node); return result; } public String visit(Background background, String parent) { String node = NODE + indexer++; String result = ""; // Background-Knoten Dot-Code result += BREAK + node + this.label("Background") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche color result += NEWLINE; result += BREAK + EDGE + this.label("color") + TERMINATOR; this.color = true; result += background.color.accept(this, node); return result; } public String visit(Ambience ambience, String parent) { String node = NODE + indexer++; String result = ""; // Ambience-Knoten Dot-Code result += BREAK + node + this.label("Ambience") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche color result += NEWLINE; result += BREAK + EDGE + this.label("color") + TERMINATOR; this.color = true; result += ambience.color.accept(this, node); return result; } public String visit(Fog fog, String parent) { String node = NODE + indexer++; String result = ""; // Fog-Knoten Dot-Code result += BREAK + node + this.label("Fog") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche color result += NEWLINE; result += BREAK + EDGE + this.label("color") + TERMINATOR; this.color = true; result += fog.color.accept(this, node); // Besuche density result += NEWLINE; result += BREAK + EDGE + this.label("density") + TERMINATOR; result += fog.density.accept(this, node); return result; } public String visit(Defaults defaults, String parent) { String node = NODE + indexer++; String result = ""; // Defaults-Knoten Dot-Code result += BREAK + node + this.label("Defaults") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche parameters result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += defaults.parameters.accept(this, node); return result; } public String visit(Sun sun, String parent) { String node = NODE + indexer++; String result = ""; // Sun-Knoten Dot-Code result += BREAK + node + this.label("Sun") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche direction result += NEWLINE; result += BREAK + EDGE + this.label("direction") + TERMINATOR; result += sun.direction.accept(this, node); // Besuche color result += NEWLINE; result += BREAK + EDGE + this.label("color") + TERMINATOR; this.color = true; result += sun.color.accept(this, node); return result; } public String visit(Bounding bounding, String parent) { String node = NODE + indexer++; String result = ""; // Bounding-Knoten Dot-Code result += BREAK + node + this.label("Bounding") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche alle besuchbaren Objekte von bounding Iterator<Visitable> visitables = bounding.visitables.iterator(); while (visitables.hasNext()) { result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += visitables.next().accept(this, node); } return result; } public String visit(Triangle triangle, String parent) { String node = NODE + indexer++; String result = ""; // Triangle-Knoten Dot-Code result += BREAK + node + this.label("Triangle") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche x result += NEWLINE; result += BREAK + EDGE + this.label("x") + TERMINATOR; result += triangle.x.accept(this, node); // Besuche y result += NEWLINE; result += BREAK + EDGE + this.label("y") + TERMINATOR; result += triangle.y.accept(this, node); // Besuche z result += NEWLINE; result += BREAK + EDGE + this.label("z") + TERMINATOR; result += triangle.z.accept(this, node); // Besuche parameters if (triangle.parameters.visitables.size() > 0) { result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += triangle.parameters.accept(this, node); } return result; } public String visit(Sphere sphere, String parent) { String node = NODE + indexer++; String result = ""; // Sphere-Knoten Dot-Code result += BREAK + node + this.label("Sphere") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche center result += NEWLINE; result += BREAK + EDGE + this.label("center") + TERMINATOR; result += sphere.center.accept(this, node); // Besuche radius result += NEWLINE; result += BREAK + EDGE + this.label("radius") + TERMINATOR; result += sphere.radius.accept(this, node); // Besuche parameters if (sphere.parameters.visitables.size() > 0) { result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += sphere.parameters.accept(this, node); } return result; } public String visit(Plane plane, String parent) { String node = NODE + indexer++; String result = ""; // Plane-Knoten Dot-Code result += BREAK + node + this.label("Plane") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche x result += NEWLINE; result += BREAK + EDGE + this.label("x") + TERMINATOR; result += plane.x.accept(this, node); // Besuche y result += NEWLINE; result += BREAK + EDGE + this.label("y") + TERMINATOR; result += plane.y.accept(this, node); // Besuche z result += NEWLINE; result += BREAK + EDGE + this.label("z") + TERMINATOR; result += plane.z.accept(this, node); // Besuche parameters if (plane.parameters.visitables.size() > 0) { result += NEWLINE; result += BREAK + EDGE + this.label("") + TERMINATOR; result += plane.parameters.accept(this, node); } return result; } public String visit(Parameters parameters, String parent) { String node = NODE + indexer++; String result = ""; // Parameters-Knoten Dot-Code result += BREAK + node + this.label("Parameters") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche 1. Parameter, falls vorhanden if (parameters.visitables.size() > 0) { result += NEWLINE; result += BREAK + EDGE + this.label("diffuse") + TERMINATOR; this.color = true; result += parameters.visitables.get(0).accept(this, node); } // Besuche 2. Parameter, falls vorhanden if (parameters.visitables.size() > 1) { result += NEWLINE; result += BREAK + EDGE + this.label("ambient") + TERMINATOR; this.color = true; result += parameters.visitables.get(1).accept(this, node); } // Besuche 3. Parameter, falls vorhanden if (parameters.visitables.size() > 2) { result += NEWLINE; result += BREAK + EDGE + this.label("specular") + TERMINATOR; result += parameters.visitables.get(2).accept(this, node); } // Besuche 4. Parameter, falls vorhanden if (parameters.visitables.size() > 3) { result += NEWLINE; result += BREAK + EDGE + this.label("shininess") + TERMINATOR; result += parameters.visitables.get(3).accept(this, node); } // Besuche 5. Parameter, falls vorhanden if (parameters.visitables.size() > 4) { result += NEWLINE; result += BREAK + EDGE + this.label("mirror") + TERMINATOR; result += parameters.visitables.get(4).accept(this, node); } return result; } public String visit(Vector vector, String parent) { String node = NODE + indexer++; String result = ""; if (this.color) { // Hintergrundfarbe des Vector-Knotens ermitteln und setzen. int r = Math.min(Math.max((int)(vector.x.value 255.0), 0), 255); int g = Math.min(Math.max((int)(vector.y.value * 255.0), 0), 255); int b = Math.min(Math.max((int)(vector.z.value * 255.0), 0), 255); String hexR = ((r <= 0xF) ? "0" : "") + Integer.toHexString(r); String hexG = ((g <= 0xF) ? "0" : "") + Integer.toHexString(g); String hexB = ((b <= 0xF) ? "0" : "") + Integer.toHexString(b); String hexRGB = hexR + hexG + hexB; result += BREAK + node + "[style=filled]" + TERMINATOR; result += BREAK + node + "[fillcolor=\"#"; result += hexRGB + "\"]" + TERMINATOR; // Vordergrundfarbe des Vector-Knotens setzen. if (r + g + b > 255) { result += BREAK + node + "[color=\"#333333\"]" + TERMINATOR; result += BREAK + node + "[fontcolor=\"#333333\"]" + TERMINATOR; } else { result += BREAK + node + "[color=\"#cccccc\"]" + TERMINATOR; result += BREAK + node + "[fontcolor=\"#cccccc\"]" + TERMINATOR; } // Farbe konsumiert. this.color = false; } // Vector-Knoten Dot-Code if (this.compact) { // Kurzfassung result += BREAK + node + "[shape=record]" + TERMINATOR; result += BREAK + node + "[label=\"{ Vector \| { "; result += vector.x.value + " \| "; result += vector.y.value + " \| "; result += vector.z.value + " } }\"]" + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; } else { // Langfassung result += BREAK + node + this.label("Vector") + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; // Besuche x result += NEWLINE; result += BREAK + EDGE + this.label("x") + TERMINATOR; result += vector.x.accept(this, node); // Besuche y result += NEWLINE; result += BREAK + EDGE + this.label("y") + TERMINATOR; result += vector.y.accept(this, node); // Besuche z result += NEWLINE; result += BREAK + EDGE + this.label("z") + TERMINATOR; result += vector.z.accept(this, node); } return result; } public String visit(Real real, String parent) { String node = NODE + indexer++; String result = ""; // Real-Knoten Dot-Code result += BREAK + node + "[shape=record]" + TERMINATOR; result += BREAK + node + "[label=\"{ Real \| "; result += real.value + " }\"]" + TERMINATOR; result += BREAK + parent + ARROW + node + TERMINATOR; return result; } }