/*
 * FigureWindow.java
 *
 */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.Graphics.*;
import java.util.*;

public class FigureWindow extends JPanel{

	// components of the panel
	FigurePanel mFigurePanel;
	JLabel mLabel2;
	JTextField mTextfield;
	
	ButtonGroup mToolsGroup;
	Box mToolVbox;
	Vector mToggleButtons;
	
	// Constructor
	public FigureWindow(){
		super(new BorderLayout()); // calls the constructor of JPanel with BorderLayout

		// add components to FigureWindow's container
		Box box = Box.createHorizontalBox();

		mLabel2 = new JLabel("Grootte: ");
		box.add(mLabel2);
		mTextfield = new JTextField("10", 5);
		box.add(mTextfield);
		add( box, BorderLayout.NORTH);

		mToolVbox = Box.createVerticalBox();
		mToolsGroup = new ButtonGroup();
		mToggleButtons = new Vector();
		AddTool("Vierkant");
		AddTool("Rechthoek");
		AddTool("Circel");
		AddTool("Driehoek");
		AddTool("Vergroot");
		AddTool("Verplaats");
		AddTool("Verwijder");
		AddTool("Groen");
		AddTool("Blauw");
		AddTool("Zwart");
		AddTool("Kleur");
		add( mToolVbox, BorderLayout.WEST);
		
		mFigurePanel = new FigurePanel();
		add(mFigurePanel, BorderLayout.CENTER);

	}
	public void AddTool(String tooltext){
		JToggleButton b = new JToggleButton(tooltext);
		mToolVbox.add(b);
		mToolsGroup.add(b);
		mToggleButtons.add(b);
	}
	// HOOFDPROGRAMMA
	public static void main( String[] args)	{ // called at program start
		JFrame frame = new JFrame("FigureWindow");
		
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // when cross at top right is pressed

		FigureWindow window = new FigureWindow();
		frame.setContentPane(window);

		// figuren toevoegen aan de panel
	   	Quadrangle q = new Quadrangle(50, 50, 30);
	   	window.mFigurePanel.AddFigure(q);
	   	Rectangle r = new Rectangle(150, 100, 50, 30);
	   	window.mFigurePanel.AddFigure(r);
	   	Circle c = new Circle(50, 80, 30);	   
		window.mFigurePanel.AddFigure(c);
		Triangle t = new Triangle(200, 200, 60);
		window.mFigurePanel.AddFigure(t);

		frame.pack(); // berekent grootte vd frame adhv groottes vd componenten (preferred sizes)
		frame.show(); // should be the last operation
	}
	
	// inner class
	class FigurePanel extends JPanel {
	
		Vector mFigures=new Vector();// vector

		int mNbrFigures;
		
	    FigurePanel()
	     {
	     	setBackground(Color.white);
		   	setPreferredSize( new Dimension(400, 400)); // constructor: Dimension(int width, int height); 
		   
	    	enableEvents(AWTEvent.MOUSE_EVENT_MASK); // noodzakelijk om processMouseEvent mogelijk te maken
	    }
	    
		void AddFigure(Figure figure){
			mFigures.add(figure);
		}
		
	  	// overriding the processMouseEvent of JPanel to handle the mouse events
	  	public void processMouseEvent(MouseEvent e) 
		 { 
		 	if (e.getID() == MouseEvent.MOUSE_CLICKED)
		 	{
		 		// get selected figure
		 		int fig_selected_index=-1;
		 		Figure fig_selected = null;
		 		int x = e.getX();
		 		int y = e.getY();
		 		System.out.println("Button " + e.getButton() + " clicked in panel at point (" + x + ", " + y + ")");    
			    for (int i = 0; i < mFigures.size(); i++)
			    {
			    	Figure fig = (Figure)mFigures.get(i);
			    	if (fig.IsPointInFigure(x,y)){
			    		fig_selected_index=i;
			    		fig_selected=fig;
			    	}
			    }
			    	    
			    // get size from textfield	
			    int size;
			    String text = mTextfield.getText();
			    try{
			    	size = Integer.parseInt(text); // omzetten van text naar integer
			    }
			     catch (NumberFormatException exception){
					JOptionPane.showMessageDialog(this, "Please give a number!", "Error with size", JOptionPane.ERROR_MESSAGE);
			     	return;
			    }
			     // Execute tool
			     for(int i = 0; i < mToggleButtons.size();i++){
					JToggleButton b = (JToggleButton)mToggleButtons.get(i); 
					if (b.isSelected()){
						if (b.getText() == "Vierkant"){
							Quadrangle q = new Quadrangle(x, y, size);
							AddFigure(q);
						} else if (b.getText() == "Rechthoek"){
			   				Rectangle r = new Rectangle(x, y, 2*size, size);
			   				AddFigure(r);
			   			} else if (b.getText() == "Circel"){
						   	Circle c = new Circle(x, y, size);	   
							AddFigure(c);
					    } else if (b.getText() == "Driehoek"){
							Triangle t = new Triangle(x, y, size);
							AddFigure(t);
						} else if (b.getText() == "Vergroot"){
							System.out.println("TOOL DOES NOT WORK");
						} else if (b.getText() == "Verplaats"){
							System.out.println("TOOL DOES NOT WORK");
						} else if (b.getText() == "Verwijder"){
							if (fig_selected_index != -1)
								mFigures.remove(fig_selected_index);
						} else if (b.getText() == "Groen"){
							if (fig_selected != null)
								fig_selected.mColor = Color.GREEN;
						} else if (b.getText() == "Blauw"){
							if (fig_selected != null)
								fig_selected.mColor = Color.BLUE;
						}else if (b.getText() == "Zwart"){
							if (fig_selected != null)
								fig_selected.mColor = Color.BLACK;
						}else if (b.getText() == "Kleur"){
							if (fig_selected != null)
								fig_selected.mColor = JColorChooser.showDialog(this, "Kies een kleur voor de figuur", fig_selected.mColor);
						}		
					}
				}
			    repaint(); // om het geheel te hertekenen
		 	}
		  }
	
	 	public void paintComponent(Graphics g) 
	 	{
	 		super.paintComponent(g); // to draw background colors etc
	 		g.clearRect(0, 0, 400, 400); // clear screen
	 		for (int i = 0; i < mFigures.size(); i++)
		    	((Figure)mFigures.get(i)).Draw(g);
	    }
	        
	 }
 }