LearningCircuitsApp/NodePanel.java at master · nullbites/LearningCircuitsApp · GitHub

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importjava.awt.Color;
importjava.awt.Dimension;
importjava.awt.Graphics;
importjava.awt.event.MouseEvent;
importjava.awt.event.MouseListener;

importjavax.swing.JLabel;
importjavax.swing.JOptionPane;
importjavax.swing.JPanel;

publicclassNodePanelextendsJPanelimplementsMouseListener{

publicstaticString[] abc = {"A","B","C","D","E","F","G","H","I","J","K","L"};
privateintindex;
privateCircuitGraphicPanelcp;

publicNodePanel(intindex, CircuitGraphicPanelcp) {
super();
this.cp=cp;
this.index=index;
this.setPreferredSize(newDimension(30,30));
this.setBackground(Color.WHITE);
this.addMouseListener(this);
this.add(newJLabel(NodePanel.abc[index-1]));
	}

publicvoidpaintComponent(Graphicsg) {
super.paintComponent(g);
g.setColor(newColor(34,139,34));
g.fillOval(0, 0, 30, 30);
g.setColor(Color.GREEN);
g.fillOval(5, 5, 20, 20);
	}

publicintgetIndex() {
returnthis.index;
	}

@Override
publicvoidmouseClicked(MouseEvente) {
if(this.cp.getCN()==null) {
this.cp.setCN(this);
 }
elseif(this.cp.getNN()!=null){
this.cp.setCN(this);
this.cp.setNN(null);
 }
elseif(Math.abs(this.getIndex()-this.cp.getCN().getIndex())==1||(this.getIndex()*this.cp.getCN().getIndex()<40&&this.getIndex()+this.cp.getCN().getIndex()==13)){
this.cp.setNN(this);
 }
else {
JOptionPane.showMessageDialog(null, "These nodes can't be connected. Please try again");
this.cp.setCN(null);
this.cp.setNN(null);
 }
this.cp.drawNodeLabel();
	}

@Override
publicvoidmouseEntered(MouseEventarg0) {
// TODO Auto-generated method stub

	}

@Override
publicvoidmouseExited(MouseEventarg0) {
// TODO Auto-generated method stub

	}

@Override
publicvoidmousePressed(MouseEventarg0) {
// TODO Auto-generated method stub

	}

@Override
publicvoidmouseReleased(MouseEventarg0) {
// TODO Auto-generated method stub

	}
}