// GraphSheet落書きペンコントロールパネル
// JDK 1.0.2
// 1998 N.Inoue

import java.awt.*;

public class PaletPanel extends Panel
{
	private final Color COLOR[] = {
		QuickColor.green,
		QuickColor.deepskyblue,
		QuickColor.blueviolet,
		QuickColor.coral,
		QuickColor.gold,
		QuickColor.hotpink,
		QuickColor.greenyellow
	};
	private final String COLORNAME[] = {
		"green",
		"deepskyblue",
		"blueviolet",
		"coral",
		"gold",
		"hotpink",
		"greenyellow"
	};
	private static int COLORS = 7;
	private GraphSheet graph;
	private Choice colorchoice;
	private Choice toolchoice;
	
	public PaletPanel(GraphSheet gs)
	{
		super();
		graph = gs;
		
		GridBagLayout gb = new GridBagLayout();
		GridBagConstraints gbc = new GridBagConstraints();
		gbc.fill = GridBagConstraints.HORIZONTAL;
		gbc.insets = new Insets(0, 2, 0, 2);
		
		colorchoice = new Choice();
		for(int i=0; i<COLORS; i++) colorchoice.addItem(COLORNAME[i]);
		toolchoice = new Choice();
		toolchoice.addItem("freehand");
		toolchoice.addItem("line");
		toolchoice.addItem("tangential line");
		toolchoice.addItem("perpendicular line");
		toolchoice.addItem("eraser");
		Label pcollbl = new Label("Pen color:", Label.RIGHT);
		Label toollbl = new Label("Tool:", Label.RIGHT);
		Button btn = new Button("Refresh");
		gbc.weightx = 1.0;
		gb.setConstraints(pcollbl, gbc);
		gb.setConstraints(toollbl, gbc);
		gb.setConstraints(btn, gbc);
		gbc.weightx = 4.0;
		gb.setConstraints(colorchoice, gbc);
		gb.setConstraints(toolchoice, gbc);
		this.setLayout(gb);
		this.add(pcollbl);
		this.add(colorchoice);
		this.add(toollbl);
		this.add(toolchoice);
		this.add(btn);
		
		this.setBackground(Color.white);
	}
	
	public boolean action(Event evt, Object obj)
	{
		if(evt.target instanceof Choice)
		{
			if(evt.target == colorchoice)
			{
				graph.setPenColor(COLOR[colorchoice.getSelectedIndex()]);
			}
			else if(evt.target == toolchoice)
			{
				switch(toolchoice.getSelectedIndex())
				{
				  case 0: graph.setPentype(GraphSheet.FREEHAND); break;
				  case 1: graph.setPentype(GraphSheet.LINE); break;
				  case 2: graph.setPentype(GraphSheet.TANGENTLINE); break;
				  case 3: graph.setPentype(GraphSheet.PERPLINE); break;
				  case 4: graph.setPentype(GraphSheet.ERASER); break;
				}
			}
		}
		else if(evt.target instanceof Button)
			graph.repaint();
		return true;
	}
}