package nt.UI.display;

import java.awt.Color;
import java.awt.Component;
import java.net.URL;
import java.util.HashMap;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;

import nt.UI.util.IconResizer;
import nt.UI.util.Icons;

public class ObjTableCellRenderer implements TableCellRenderer{

	private HashMap<Class<?>, Icon> mappedIcons = new HashMap<>();
	private Color bgEven = new Color(Integer.decode("#e8e8e8"));
	private Color bgOdd = Color.WHITE;
	private Color bgSelect = new Color(Integer.decode("#5e87ed"));
	
	public ObjTableCellRenderer() {
		putIcon(String.class, Icons.STRING_SYMBOL_URL);
		putIcon(Long.class, Icons.NUMBER_SYMBOL_URL);
		putIcon(Integer.class, Icons.NUMBER_SYMBOL_URL);
		putIcon(Short.class, Icons.NUMBER_SYMBOL_URL);
		putIcon(Float.class, Icons.NUMBER_SYMBOL_URL);
		putIcon(Double.class, Icons.NUMBER_SYMBOL_URL);
		putIcon(Object.class, Icons.OBJECT_SYMBOL_URL);
	}
	
	@Override
	public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
			int row, int column) {
		JLabel label = new JLabel(value == null? "" : value.toString());;
		if (column == 0) {
			Class<?> clazz = value.getClass();
			if(clazz == String.class) {
				try {
					clazz = Class.forName(value.toString());
				} catch (ClassNotFoundException e) {
					clazz = value.getClass();
				}
			}
			Icon icon = mappedIcons.get(clazz);
			icon = icon == null ? new ImageIcon(Icons.FILE_SYMBOL_URL) : icon;

			int fHeight = table.getFontMetrics(table.getFont()).getHeight() - 4;
			int iWidth = (int) ((fHeight / (float) icon.getIconHeight()) * icon.getIconWidth());
			icon = IconResizer.resizeIcon(icon, iWidth, fHeight);

			label.setIcon(icon);
		}

		Color bg = (row % 2)==0?bgEven:bgOdd;
		bg = isSelected? bgSelect : bg;
		Color fg = isSelected? table.getSelectionForeground() : table.getForeground();
		label.setIconTextGap(10);
		label.setFont(table.getFont());
		label.setOpaque(true);
		label.setBackground(bg);
		label.setForeground(fg);
		return label;
	}
	
	public void putIcon(Class<?> clazz, Icon icon) {
		this.mappedIcons.put(clazz, icon);
	}
	public void putIcon(Class<?> clazz, URL url) {
		putIcon(clazz, new ImageIcon(url));
	}
	
	public Color getBackgroundEven() {
		return this.bgEven;
	}
	public void setBackgroundEven(Color bg) {
		this.bgEven = bg;
	}
	public Color getBackgroundOdd() {
		return this.bgOdd;
	}
	public void setBackgroundOdd(Color bg) {
		this.bgOdd = bg;
	}

}