ShowHelp.java

package com.token.view; 
 
import javax.microedition.lcdui.Font; 
import javax.microedition.lcdui.Graphics; 
import javax.microedition.lcdui.game.GameCanvas; 
 
import com.token.util.StringDealMethod; 
import com.token.util.UIController; 
import com.token.view.components.*; 
 
public class ShowHelp extends GameCanvas 
{ 
 private UIController controller; 
 private Graphics graphics; 
 private Font ft; 
 private int width; 
 private int height; 
  
 private Menu menu; 
 private Head head; 
 private BackGroud backGroud; 
  
 private int page = 0; 
 private int currentPageIndex = 0; 
 private int bodyHeight; 
 private int dir = 0; 
  
 public ShowHelp(UIController control) 
  { 
  super(false); 
  this.controller=control; 
  setFullScreenMode(true); 
   
  width = getWidth(); 
  height = getHeight(); 
   
  menu = new Menu(this); 
  head = new Head(this); 
  backGroud = new BackGroud(this); 
  } 
  
 public void show() 
 { 
  int margin = 0; 
  graphics = getGraphics(); 
   
  graphics.clipRect(0,0, width, height); 
  backGroud.drawBackGroud(this, graphics); 
  head.drawHead(this, graphics, "幫助"); 
  menu.drawMenu(this, graphics, "","返回"); 
  //flushGraphics(); 
   
  ft = Font.getFont(Font.FACE_PROPORTIONAL,Font.STYLE_BOLD,Font.SIZE_MEDIUM); 
   
  String info = "1 滾動(dòng)分頁顯示；\n" 
    +"2 滾動(dòng)分頁顯示；\n" 
    +"3 滾動(dòng)分頁顯示；\n" 
    +"4 滾動(dòng)分頁顯示；\n" 
    +"5 滾動(dòng)分頁顯示；\n" 
    +"6 滾動(dòng)分頁顯示；\n" 
    +"7 滾動(dòng)分頁顯示；\n" 
    +"8 滾動(dòng)分頁顯示；\n" 
    +"9 滾動(dòng)分頁顯示；\n" 
    +"10 滾動(dòng)分頁顯示；\n" 
    +"11 滾動(dòng)分頁顯示；\n" 
    +"12 滾動(dòng)分頁顯示；\n" 
    +"13 滾動(dòng)分頁顯示；\n" 
    +"14 滾動(dòng)分頁顯示；\n" 
    +"15 滾動(dòng)分頁顯示；\n" 
    +"16 滾動(dòng)分頁顯示；\n" 
    +"17 滾動(dòng)分頁顯示；\n" 
    +"18 滾動(dòng)分頁顯示；\n" 
    +"19 滾動(dòng)分頁顯示；\n" 
    +"20 滾動(dòng)分頁顯示；\n" 
    +"21 滾動(dòng)分頁顯示；\n" 
    +"22 滾動(dòng)分頁顯示；\n" 
    +"23 滾動(dòng)分頁顯示；\n" 
    +"24 滾動(dòng)分頁顯示；\n" 
    +"25 滾動(dòng)分頁顯示；\n" 
    +"26 滾動(dòng)分頁顯示；\n" 
    +"27 滾動(dòng)分頁顯示；\n" 
    +"28 滾動(dòng)分頁顯示；\n" 
    +"29 滾動(dòng)分頁顯示；\n" 
    +"30 滾動(dòng)分頁顯示；\n" 
    +"31 滾動(dòng)分頁顯示；\n" 
    +"32 滾動(dòng)分頁顯示；\n" 
    +"33 滾動(dòng)分頁顯示；\n" 
    +"34 滾動(dòng)分頁顯示；\n"; 
     
  String info_wrap1[] = StringDealMethod.format(info, width-15, ft); 
 
  page = info_wrap1.length*ft.getHeight()/(height-head.menuHeight-menu.menuHeight-2*margin)+1; 
  bodyHeight = ((int) (height-head.menuHeight-menu.menuHeight)/ft.getHeight())*ft.getHeight(); 
  margin = (height-head.menuHeight-menu.menuHeight-bodyHeight)/2; 
   
  graphics.setFont(ft); 
  graphics.setColor(Color.text); 
  graphics.clipRect(0, head.menuHeight+margin, width, bodyHeight); 
  graphics.translate(0, dir*currentPageIndex*bodyHeight); 
   
  for(int i=0; i<info_wrap1.length;i++) 
  { 
   graphics.drawString(info_wrap1[i],5, i * ft.getHeight()+head.menuHeight+margin, Graphics.TOP|Graphics.LEFT); 
  } 
   
  graphics.translate(0, -dir*currentPageIndex*bodyHeight); 
   
  drawScrollBar(); 
  flushGraphics(); 
   
  //System.out.println(graphics.getTranslateY()); 
   
 } 
  
 private void drawScrollBar() 
 { 
  int barHeight = height-head.menuHeight-menu.menuHeight; 
   
  graphics.setColor(Color.menuFrame); 
  graphics.fillRect(width-3, head.menuHeight, 2, barHeight); 
  graphics.setColor(Color.selectBg); 
  graphics.fillRect(width-4, head.menuHeight+(currentPageIndex)*barHeight/page, 4, barHeight/page); 
 } 
  
 protected void keyPressed(int keyCode) 
 { 
  //System.out.println(keycode); 
  switch(keyCode) 
  { 
   case KeyID.SOFT_RIGHT: 
   { 
    String flag = "0"; 
    Object [] args = {flag,""}; 
    controller.handleEvent(UIController.EventID.EVENT_MAIN_SCREEN,args); 
    break; 
   } 
   default: 
     ; 
  } 
   
  keyCode = getGameAction(keyCode); 
  //System.out.println(page); 
   
  switch(keyCode) 
  { 
    
   case UP: 
   { 
    dir = -1; 
     
     
    if(currentPageIndex>0) 
    { 
     currentPageIndex--; 
    } 
    else 
    { 
     //dir = 0; 
    } 
     
    show(); 
    break; 
     
   } 
   case DOWN: 
   { 
    dir = -1; 
    if(currentPageIndex<page-1) 
    { 
     currentPageIndex++; 
    } 
    else 
    {  
     //dir = 0; 
    } 
     
    show(); 
    break; 
   } 
  } 
 } 
 
}