style.java

j2me开发框架

package com.podome.style;

import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Image;

import com.podome.log.Logger;

/**
 * 和图片或背景图片相关的属性都放到样式中，文字前面需要显示小图标，不同的状态显示不
 * 同的图标等。
 */
public class Style {  
    /***************布局参数***********************/
	public final static int disableColor = 0x75CCCCCC;
	//参考屏幕
	public static int LAYOUT_LEFT   = -1;
	public static int LAYOUT_RIGHT  = -2;
	public static int LAYOUT_TOP    = -3;
	public static int LAYOUT_BOTTOM = -4;
    
    //参考上一个元素
    public final byte LAYOUT_PRE_LEFT   = -10;  //左对齐
    public final byte LAYOUT_PRE_CENTER = -20;  //居中
    public final byte LAYOUT_PRE_RIGHT  = -30;  //右对齐
    
    /******************字体对象**************************/    
    public  Font dfont;      // 默认字体
	public  int  charHeight; // 一个字符的默认高度
	public  int  wCharCH;    // 一个中文的默认宽度
	public  int  wCharEN;    // 一个英文半角字符的默认宽度	
	
    /************************样式:填充和空白边************************/
    public int marginTop = 2;
    public int marginLeft = 1;    
    public int marginBottom = 1;
    public int marginRight = 1;
   
	
    public int paddingTop = 2;
    public int paddingRight = 2;
    public int paddingBottom = 2;
    public int paddingLeft = 2;
    
    /**
     * 和背景色
     */
    public int bColorNormal  = 0xFFFFFF;  //正常显示文字背景色
    public int bColorFocus   = 0x00FF00;  //获得焦点文字背景色
    public int bColorEnable  = 0xCCCCCC;  //获得焦点文字背景色   
   
    
    /**
     * 前景色颜色
     */
    public int fColorNormal  = 0x000000;  
    public int fColorFocus   = 0xFFFFFF;  
    public int fColorEnable  = 0x666666;  
    
    /**
     * 边框颜色
     */
    public int sColorNormal  = 0x000000; 
    public int sColorFocus   = 0x339933;  
    public int sColorEnable  = 0x999999;  
    
    /****************************圆角设置*********************/
    public int roundHeight = 5;
    public int rountWidth  = 5;
    
    public Image bImageLeftTop = null;   
    public Image bImageRightTop = null;
    public Image bImageLeftBottom = null;   
    public Image bImageRightBottom = null;
    public Image bImageMid   = null;
    
    public Image bImageLeftTopFocus = null;   
    public Image bImageRightTopFocus = null;
    public Image bImageLeftBottomFocus = null;   
    public Image bImageRightBottomFocus = null;
    
    public Image bImageMidFocus   = null;
    
    public boolean isImageRepeat = true; //中间图片是否重复
    
    
    private static Style defaultStyle;
    
   /**
    * 新建一个默认样式
    */
   public Style(){
	   setFontSize(Font.SIZE_SMALL);
   }
   /**
    * 创建一个指定字体大小的默认样式
    * @param size
    */
   public Style(int fontSize){
	   setFontSize(fontSize); 
   }
     
   /**
    * 获取系统默认样式
    * @return
    */
   public static Style getDefaultStyle(){
	   if( defaultStyle == null ){
		   defaultStyle = new Style();
	   }
	   return defaultStyle;
   }
   
   /**
    * 获取系统默认样式
    * @return
    */
   public static Style getStyle(String url,String styleName){
	   if( defaultStyle == null ){
		   defaultStyle = new Style();
	   }
	   return defaultStyle;
   }
   
   /**
	 * 设置字体大小
	 */
	public void setFontSize(int size){
		dfont      = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_PLAIN,size);
		wCharCH    = dfont.stringWidth("中文") /2;
		wCharEN    = dfont.stringWidth("EN") /2;
		charHeight = dfont.getHeight();
	}
	
	public void debug(){
		String s = " Left:"  + paddingLeft +
		           " Right:" + paddingRight +
		           " TOP:"   + paddingTop +
		           " BOTTOM:" + paddingBottom;
	   Logger.info(s);
	}
}