musicitem.java

有关手机游戏网络对战方面的源码

package unicoco;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.CustomItem;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;

public class MusicItem extends CustomItem implements Runnable {
	String[] strings;

	byte selection;

	boolean condi;

	Font font;

	int curIndex;

	boolean isFocus;

	public MusicItem() {
		super("Music");
		strings = new String[] { "close", "open" };
		condi = true;
		font = Font.getFont(Font.FONT_STATIC_TEXT);
	}

	public void run() {
		while (condi) {
			int target = selection * 10;
			if (curIndex != target) {
				curIndex = (curIndex + 1) % (strings.length * 10);
				repaint();
			}
			try {
				Thread.sleep(50);
			} catch (Exception e) {

			}
		}
	}

	protected int getMinContentHeight() {

		return font.getHeight();
	}

	protected int getMinContentWidth() {
		int max = 0;
		for (int i = 0; i < strings.length; i++) {
			String v = strings[i];
			int width = font.stringWidth(v);
			max = Math.max(max, width);
		}
		int width = font.stringWidth(getLabel() + 10);
		max = Math.max(max, width);
		return max;
	}

	protected int getPrefContentHeight(int arg0) {

		return font.getHeight();
	}

	protected int getPrefContentWidth(int arg0) {

		return getMinContentWidth();
	}

	protected void paint(Graphics g, int w, int h) {
		int fraction = curIndex % 10;
		int realIndex = (curIndex - fraction) / 10;
		String v = strings[realIndex];
		g.setFont(font);
		int bc = MIDGame.display.getColor(Display.COLOR_BACKGROUND);
		int fc = MIDGame.display.getColor(Display.COLOR_FOREGROUND);
		g.setColor(bc);
		g.fillRect(0, 0, w, h);
		g.setColor(fc);
		if (fraction == 0) {
			g.drawString(v, 0, 0, Graphics.TOP | Graphics.LEFT);
			return;
		}
		int lineHeight = font.getHeight();
		int divider = lineHeight - lineHeight * fraction / 10;
		g.drawString(v, 0, divider - lineHeight, Graphics.TOP | Graphics.LEFT);
		realIndex = (realIndex + 1) % strings.length;
		v = strings[realIndex];
		g.setStrokeStyle(Graphics.DOTTED);
		g.drawLine(0, divider, w, divider);
		g.drawString(v, 0, divider, Graphics.TOP | Graphics.LEFT);
	}

	boolean changed = false;

	protected void keyPressed(int arg0) {
		if (getGameAction(arg0) == Canvas.FIRE) {
			if (!changed) {
				changed = true;
			}
			selection = (byte) ((selection + 1) % strings.length);
		}
	}

	protected boolean traverse(int arg0, int arg1, int arg2, int[] arg3) {
		isFocus = true;
		repaint();
		return false;
	}

	protected void traverseOut() {
		isFocus = false;
		repaint();
	}

	protected void showNotify() {
		selection = MIDGame.game.music;
		condi = true;
		Thread t = new Thread(this);
		t.start();
	}

	protected void hideNotify() {
		condi = false;
	}
}