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package jcgp.gui.population;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.geometry.VPos;
import javafx.scene.control.Label;
import javafx.scene.input.MouseDragEvent;
import javafx.scene.input.MouseEvent;
import javafx.scene.paint.Paint;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Line;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.scene.text.TextAlignment;
import jcgp.GUI;
import jcgp.CGP.Resources;
import jcgp.population.Connection;
import jcgp.population.Input;
import jcgp.population.Node;
import jcgp.population.Output;
public class GUIOutput extends GUIGene {
private Circle socket;
private Label connectionLabel;
private Line sourceLine;
private Output output;
public GUIOutput(ChromosomePane parentRef, final Output output, Resources resources, Line line) {
this.parent = parentRef;
this.output = output;
this.sourceLine = line;
relocate((((int) resources.get("columns") + 1) * (2 * NODE_RADIUS + SPACING)) + NODE_RADIUS,
(output.getIndex() * (2 * NODE_RADIUS + SPACING)) + NODE_RADIUS);
// set the line ends correctly
updateLine();
mainCircle = new Circle(NODE_RADIUS, Paint.valueOf("white"));
mainCircle.setStroke(Paint.valueOf("black"));
text = new Text("O: " + output.getIndex());
text.setFont(Font.font("Arial", 12));
text.setTextOrigin(VPos.CENTER);
text.setTextAlignment(TextAlignment.CENTER);
text.setWrappingWidth(NODE_RADIUS * 2);
text.setX(-NODE_RADIUS);
text.setVisible(true);
socket = new Circle(-NODE_RADIUS, 0, SOCKET_RADIUS, Paint.valueOf("white"));
socket.setId(String.valueOf(0));
socket.setStroke(Paint.valueOf("black"));
connectionLabel = new Label("S");
connectionLabel.setStyle("-fx-background-color:rgb(255, 255, 255); -fx-border-color:rgba(0, 0, 0, 0.5); ");
connectionLabel.relocate(socket.getCenterX() + 5, socket.getCenterY() - 10);
connectionLabel.setVisible(false);
/*
* Mouse event handlers on sockets
*
*/
socket.addEventFilter(MouseDragEvent.DRAG_DETECTED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// the mouse has been dragged out of the socket, this means a full drag is in progress
startFullDrag();
}
});
socket.addEventFilter(MouseEvent.MOUSE_ENTERED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// user is hovering over connection socket
connectionLabel.setVisible(true);
}
});
socket.addEventFilter(MouseEvent.MOUSE_EXITED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// user exits the connection socket
connectionLabel.setVisible(false);
}
});
socket.addEventFilter(MouseDragEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// mouse was pressed on the socket
stateProperty.set(GUIGeneState.SOURCE);
}
});
socket.addEventFilter(MouseDragEvent.MOUSE_DRAGGED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
sourceLine.setEndX(event.getX() + ((Circle) event.getSource()).getParent().getLayoutX());
sourceLine.setEndY(event.getY() + ((Circle) event.getSource()).getParent().getLayoutY());
}
});
socket.addEventFilter(MouseDragEvent.MOUSE_RELEASED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
if (event.isDragDetect()) {
// mouse was released before dragging out of the socket
updateLine();
stateProperty.set(GUIGeneState.HOVER);
}
}
});
/*
* Mouse event handlers on whole gene
*/
addEventFilter(MouseDragEvent.MOUSE_DRAG_ENTERED, new EventHandler<MouseDragEvent>() {
@Override
public void handle(MouseDragEvent event) {
// the drag has entered this node, react appropriately
stateProperty.set(GUIGeneState.FORBIDDEN_TARGET);
}
});
addEventFilter(MouseDragEvent.MOUSE_DRAG_OVER, new EventHandler<MouseDragEvent>() {
@Override
public void handle(MouseDragEvent event) {
// the user is dragging over this node, react appropriately
// this happens even if we are the source of the drag
}
});
addEventFilter(MouseDragEvent.MOUSE_DRAG_EXITED, new EventHandler<MouseDragEvent>() {
@Override
public void handle(MouseDragEvent event) {
// the drag has exited this node, react appropriately
// this happens even if we are the source of the drag
if (event.isPrimaryButtonDown()) {
if (event.getGestureSource() == event.getSource()) {
stateProperty.set(GUIGeneState.SOURCE);
} else {
if (stateProperty.get() == GUIGeneState.NO_CHANGE_TARGET) {
stateProperty.set(GUIGeneState.INDIRECT_HOVER);
} else {
stateProperty.set(GUIGeneState.NEUTRAL);
}
}
}
}
});
addEventFilter(MouseDragEvent.MOUSE_DRAG_RELEASED, new EventHandler<MouseDragEvent>() {
@Override
public void handle(MouseDragEvent event) {
// making a connection to an output is illegal
// set states to reflect the new situation
((GUIGene) event.getGestureSource()).setState(GUIGeneState.NEUTRAL);
((GUIGene) event.getGestureSource()).setConnections(GUIGeneState.NEUTRAL);
stateProperty.set(GUIGeneState.HOVER);
}
});
addEventFilter(MouseEvent.MOUSE_ENTERED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// cursor has entered this node without dragging, or it is dragging and this is the source
if (stateProperty.get() == GUIGeneState.NEUTRAL) {
stateProperty.set(GUIGeneState.HOVER);
}
}
});
addEventFilter(MouseEvent.MOUSE_EXITED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// cursor has left this node without dragging, or it is dragging and this is the source
if (stateProperty.get() == GUIGeneState.HOVER) {
stateProperty.set(GUIGeneState.NEUTRAL);
setConnections(GUIGeneState.NEUTRAL);
}
}
});
getChildren().addAll(mainCircle, text, socket, connectionLabel);
stateProperty.addListener(new ChangeListener<GUIGeneState>() {
@Override
public void changed(ObservableValue<? extends GUIGeneState> observable, GUIGeneState oldValue, GUIGeneState newValue) {
switch (newValue) {
case ACTIVE_HOVER:
break;
case FORBIDDEN_TARGET:
mainCircle.setFill(Paint.valueOf(GUI.BAD_SELECTION_COLOUR));
break;
case HOVER:
mainCircle.setFill(Paint.valueOf(GUI.HARD_HIGHLIGHT_COLOUR));
sourceLine.setVisible(true);
setConnections(GUIGeneState.ACTIVE_HOVER);
break;
case INDIRECT_HOVER:
mainCircle.setFill(Paint.valueOf(GUI.SOFT_HIGHLIGHT_COLOUR));
break;
case NEUTRAL:
mainCircle.setFill(Paint.valueOf(GUI.NEUTRAL_COLOUR));
sourceLine.setVisible(false);
break;
case NO_CHANGE_TARGET:
mainCircle.setFill(Paint.valueOf(GUI.NEUTRAL_SELECTION_COLOUR));
break;
case SOURCE:
mainCircle.setFill(Paint.valueOf(GUI.HARD_HIGHLIGHT_COLOUR));
break;
case TARGET:
mainCircle.setFill(Paint.valueOf(GUI.GOOD_SELECTION_COLOUR));
break;
default:
break;
}
}
});
output.sourceProperty().addListener(new ChangeListener<Connection>() {
@Override
public void changed(ObservableValue<? extends Connection> observable,
Connection oldValue, Connection newValue) {
updateLine();
}
});
}
public void updateLine() {
if (output.getSource() instanceof Node) {
int row = ((Node) output.getSource()).getRow(),
column = ((Node) output.getSource()).getColumn();
sourceLine.setEndX(((column + 1) * (2 * NODE_RADIUS + SPACING)) + 2 * NODE_RADIUS);
sourceLine.setEndY((row * (2 * NODE_RADIUS + SPACING)) + NODE_RADIUS);
} else if (output.getSource() instanceof Input) {
int inputIndex = ((Input) output.getSource()).getIndex();
sourceLine.setEndX(2 * NODE_RADIUS);
sourceLine.setEndY(inputIndex * (2 * NODE_RADIUS + SPACING) + NODE_RADIUS);
}
}
@Override
public Output getGene() {
return output;
}
@Override
public void setConnections(GUIGeneState newState) {
if (output.getSource() instanceof Node) {
parent.getGuiNode(((Node) output.getSource()).getRow(), ((Node) output.getSource()).getColumn()).setState(newState);
} else if (output.getSource() instanceof Input) {
parent.getGuiInput(((Input) output.getSource()).getIndex()).setState(newState);
}
}
@Override
public void resetState() {
stateProperty.set(GUIGeneState.NEUTRAL);
setConnections(GUIGeneState.NEUTRAL);
}
}
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