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package jcgp.gui.population;
import java.util.ArrayList;
import javafx.scene.control.ScrollPane;
import javafx.scene.layout.Pane;
import javafx.scene.shape.Line;
import jcgp.backend.population.Chromosome;
import jcgp.backend.population.Connection;
import jcgp.backend.population.Input;
import jcgp.backend.population.Node;
import jcgp.backend.resources.Resources;
import jcgp.gui.GUI;
import jcgp.gui.constants.Constants;
import jcgp.gui.handlers.GUIHandlers;
/**
* This extension of {@code ScrollPane} contains a series of
* nodes, inputs and outputs spread across a grid. It also contains
* all of the connection lines overlaid over the nodes, inputs and outputs.
*
*
* @author Eduardo Pedroni
*
*/
public class ChromosomePane extends ScrollPane {
private GUINode[][] guiNodes;
private GUIInput[] guiInputs;
private GUIOutput[] guiOutputs;
private ArrayList<Line> connectionLines;
private Pane content;
private int rows, columns;
private boolean target = false;
public ChromosomePane(Chromosome chromosome) {
super();
final Resources resources = GUI.resources;
connectionLines = new ArrayList<Line>();
rows = resources.rows();
columns = resources.columns();
content = new Pane();
content.setId("content pane for genes");
// generate the GUIGenes
/*
* inputs
*/
guiInputs = new GUIInput[resources.inputs()];
for (int i = 0; i < guiInputs.length; i++) {
// make the GUI elements
guiInputs[i] = new GUIInput(chromosome.getInput(i));
guiInputs[i].relocate(Constants.NODE_RADIUS,
(chromosome.getInput(i).getIndex() * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS);
GUIHandlers.addHandlers(guiInputs[i]);
}
content.getChildren().addAll(guiInputs);
/*
* nodes
*/
guiNodes = new GUINode[rows][columns];
double angle, xPos, yPos;
for (int r = 0; r < rows; r++) {
for (int c = 0; c < columns; c++) {
// make the connection lines
Line lines[] = new Line[resources.arity()];
for (int l = 0; l < lines.length; l++) {
angle = ((((double) (l + 1)) / ((double) (lines.length + 1))) * Constants.THETA) - (Constants.THETA / 2);
xPos = (-Math.cos(angle) * Constants.NODE_RADIUS) + (((c + 1) * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS);
yPos = (Math.sin(angle) * Constants.NODE_RADIUS) + ((r * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS);
lines[l] = new Line(xPos, yPos, xPos, yPos);
lines[l].setMouseTransparent(true);
//lines[l].setVisible(false);
connectionLines.add(lines[l]);
}
// make the GUI elements
guiNodes[r][c] = new GUINode(chromosome.getNode(r, c), lines) {
@Override
public GUIConnection getGUIConnection(Connection connection) {
if (connection instanceof Input) {
return guiInputs[((Input) connection).getIndex()];
} else if (connection instanceof Node) {
return guiNodes[((Node) connection).getRow()][((Node) connection).getColumn()];
} else {
// something bad happened!
throw new ClassCastException();
}
}
};
guiNodes[r][c].relocate(((chromosome.getNode(r, c).getColumn() + 1) * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS,
(chromosome.getNode(r, c).getRow() * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS);
GUIHandlers.addHandlers(guiNodes[r][c]);
}
content.getChildren().addAll(guiNodes[r]);
}
/*
* outputs
*/
guiOutputs = new GUIOutput[resources.outputs()];
for (int i = 0; i < guiOutputs.length; i++) {
// make the GUI elements
guiOutputs[i] = new GUIOutput(chromosome.getOutput(i)) {
@Override
public GUIConnection getGUIConnection(Connection connection) {
if (connection instanceof Input) {
return guiInputs[((Input) connection).getIndex()];
} else if (connection instanceof Node) {
return guiNodes[((Node) connection).getRow()][((Node) connection).getColumn()];
} else {
// something bad happened!
throw new ClassCastException();
}
}
};
guiOutputs[i].relocate(((resources.columns() + 1) * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS,
(chromosome.getOutput(i).getIndex() * (2 * Constants.NODE_RADIUS + Constants.SPACING)) + Constants.NODE_RADIUS);
GUIHandlers.addHandlers(guiOutputs[i]);
}
content.getChildren().addAll(guiOutputs);
// add lines to the pane as on top of genes
content.getChildren().addAll(connectionLines);
setPrefWidth(620);
setContent(content);
}
// protected GUIGene getGuiGene(Connection gene) {
// if (gene instanceof Input) {
// return guiInputs[((Input) gene).getIndex()];
// } else if (gene instanceof Node) {
// return guiNodes[((Node) gene).getRow()][((Node) gene).getColumn()];
// } else {
// // something bad happened!
// throw new ClassCastException();
// }
// }
protected boolean isTarget() {
return target;
}
protected void setTarget(boolean newValue) {
target = newValue;
}
public void updateGenes(Chromosome chr) {
for (int r = 0; r < rows; r++) {
for (int c = 0; c < columns; c++) {
guiNodes[r][c].setNode(chr.getNode(r, c));
}
}
for (int i = 0; i < guiOutputs.length; i++) {
guiOutputs[i].setOutput(chr.getOutput(i));
}
}
public static boolean isAllowed(GUIMutable source, GUIConnection target) {
if (source instanceof GUINode) {
// if the source is a node, all inputs and some nodes are valid
if (target instanceof GUIInput) {
return true;
} else if (target instanceof GUINode) {
// target and source are nodes, let's look at levels back
Node t = ((GUINode) target).getNode(), s = ((GUINode) source).getNode();
if (s.getColumn() - t.getColumn() > 0 && s.getColumn() - t.getColumn() <= GUI.resources.levelsBack()) {
return true;
}
}
return false;
} else if (source instanceof GUIOutput) {
// if the source is an output, any node or input is valid
if (target instanceof GUINode || target instanceof GUIInput) {
return true;
} else {
// this should never happen...
return false;
}
}
// if the source was neither node nor output, something bad is happening
throw new ClassCastException("Source was neither GUINode nor GUIOutput.");
}
}
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