jars/icu4j-4_4_2-src/demos/src/com/ibm/icu/dev/demo/Launcher.java

   1 /*\r
   2  *******************************************************************************\r
   3  * Copyright (C) 2007, International Business Machines Corporation and         *\r
   4  * others. All Rights Reserved.                                                *\r
   5  *******************************************************************************\r
   6  */\r
   7 package com.ibm.icu.dev.demo;\r
   8 \r
   9 import java.awt.BorderLayout;\r
  10 import java.awt.Button;\r
  11 import java.awt.Color;\r
  12 import java.awt.Frame;\r
  13 import java.awt.GridLayout;\r
  14 import java.awt.Label;\r
  15 import java.awt.Panel;\r
  16 import java.awt.event.ActionEvent;\r
  17 import java.awt.event.ActionListener;\r
  18 import java.awt.event.WindowAdapter;\r
  19 import java.awt.event.WindowEvent;\r
  20 import java.lang.reflect.InvocationTargetException;\r
  21 import java.lang.reflect.Method;\r
  22 \r
  23 import com.ibm.icu.dev.demo.impl.DemoApplet;\r
  24 import com.ibm.icu.dev.demo.impl.DemoUtility;\r
  25 import com.ibm.icu.util.VersionInfo;\r
  26 \r
  27 \r
  28 /**\r
  29  * @author srl\r
  30  * Application to provide a panel of demos to launch\r
  31  */\r
  32 public class Launcher extends DemoApplet {\r
  33     private static final long serialVersionUID = -8054963875776183877L;\r
  34     \r
  35     /**\r
  36      * base package of all demos\r
  37      */\r
  38     public static final String demoBase = "com.ibm.icu.dev.demo";\r
  39     /**\r
  40      * list of classes, relative to the demoBase. all must have a static void main(String[])\r
  41      */\r
  42     public static final String demoList[] = { \r
  43         "calendar.CalendarApp",\r
  44         "charsetdet.DetectingViewer",\r
  45         "holiday.HolidayCalendarDemo",\r
  46 //        "number.CurrencyDemo", -- console\r
  47 //        "rbbi.DBBIDemo",\r
  48 //        "rbbi.RBBIDemo",\r
  49 //        "rbbi.TextBoundDemo",\r
  50         "rbnf.RbnfDemo",\r
  51 //        "timescale.PivotDemo",  -- console\r
  52         "translit.Demo",\r
  53     };\r
  54 \r
  55     public class LauncherFrame extends Frame implements ActionListener {\r
  56         private static final long serialVersionUID = -8054963875776183878L;\r
  57         \r
  58         public Button buttonList[] = new Button[demoList.length]; // one button for each demo\r
  59         public Label statusLabel;\r
  60         private DemoApplet applet;\r
  61         \r
  62         LauncherFrame(DemoApplet applet) {\r
  63             init();\r
  64             this.applet = applet;\r
  65         }\r
  66         \r
  67         public void init() {\r
  68             // close down when close is clicked.\r
  69             // TODO: this should be factored..\r
  70             addWindowListener(\r
  71                     new WindowAdapter() {\r
  72                         public void windowClosing(WindowEvent e) {\r
  73                             setVisible(false);\r
  74                             dispose();\r
  75 \r
  76                             if (applet != null) {\r
  77                                 applet.demoClosed();\r
  78                             } else System.exit(0);\r
  79                         }\r
  80                     } );\r
  81 \r
  82             setBackground(DemoUtility.bgColor);\r
  83             setLayout(new BorderLayout());\r
  84 \r
  85             Panel topPanel = new Panel();\r
  86             topPanel.setLayout(new GridLayout(5,3));\r
  87 \r
  88             for(int i=0;i<buttonList.length;i++) {\r
  89                 String demo = demoList[i];\r
  90                 Button b = new Button(demo);\r
  91                 b.addActionListener(this);\r
  92                 buttonList[i]=b;\r
  93                 topPanel.add(b);\r
  94             }\r
  95             add(BorderLayout.CENTER,topPanel);\r
  96             statusLabel = new Label("");\r
  97             statusLabel.setAlignment(Label.LEFT);\r
  98             String javaVersion = "";\r
  99             try { \r
 100                 javaVersion = "* Java: "+System.getProperty("java.version");\r
 101             } catch (Throwable t) {\r
 102                 javaVersion = "";\r
 103             }\r
 104             add(BorderLayout.NORTH, new Label(\r
 105                    "ICU Demos * ICU version "+VersionInfo.ICU_VERSION +\r
 106                    " * http://icu-project.org "+javaVersion));\r
 107             add(BorderLayout.SOUTH,statusLabel);\r
 108             // set up an initial status.\r
 109             showStatus(buttonList.length+" demos ready. ");\r
 110         }\r
 111         \r
 112         /**\r
 113          * Change the 'status' field, and set it to black\r
 114          * @param status\r
 115          */\r
 116         void showStatus(String status) {\r
 117             statusLabel.setText(status);\r
 118             statusLabel.setForeground(Color.BLACK);\r
 119             statusLabel.setBackground(Color.WHITE);\r
 120 //            statusLabel.setFont(Font.PLAIN);\r
 121             doLayout();\r
 122         }\r
 123         void showStatus(String demo, String status) {\r
 124             showStatus(demo+": "+status);\r
 125         }\r
 126         void showFailure(String status) {\r
 127             statusLabel.setText(status);\r
 128             statusLabel.setBackground(Color.GRAY);\r
 129             statusLabel.setForeground(Color.RED);\r
 130 //            statusLabel.setFont(Font.BOLD);\r
 131             doLayout();\r
 132         }\r
 133         void showFailure(String demo, String status) {\r
 134             showFailure(demo+": "+status);\r
 135         }\r
 136 \r
 137         \r
 138         public void actionPerformed(ActionEvent e) {\r
 139             // find button\r
 140             for(int i=0;i<buttonList.length;i++) {\r
 141                 if(e.getSource() == buttonList[i]) {\r
 142                     String demoShort = demoList[i];\r
 143                     String demo = demoBase+'.'+demoShort;\r
 144                     showStatus(demoShort, "launching");\r
 145                     try {\r
 146                         Class c = Class.forName(demo);\r
 147                         String args[] = new String[0];\r
 148                         Class params[] = new Class[1];\r
 149                         params[0] = args.getClass();\r
 150                         Method m = c.getMethod("main", params );\r
 151                         Object[] argList = { args };\r
 152                         m.invoke(null, argList);\r
 153                         showStatus(demoShort, "launched.");\r
 154                     } catch (ClassNotFoundException e1) {\r
 155                         showFailure(demoShort,e1.toString());\r
 156                         e1.printStackTrace();\r
 157                     } catch (SecurityException se) {\r
 158                         showFailure(demoShort,se.toString());\r
 159                         se.printStackTrace();\r
 160                     } catch (NoSuchMethodException nsme) {\r
 161                         showFailure(demoShort,nsme.toString());\r
 162                         nsme.printStackTrace();\r
 163                     } catch (IllegalArgumentException iae) {\r
 164                         showFailure(demoShort,iae.toString());\r
 165                         iae.printStackTrace();\r
 166                     } catch (IllegalAccessException iae) {\r
 167                         showFailure(demoShort,iae.toString());\r
 168                         iae.printStackTrace();\r
 169                     } catch (InvocationTargetException ite) {\r
 170                         showFailure(demoShort,ite.toString());\r
 171                         ite.printStackTrace();\r
 172                     }\r
 173                     repaint();\r
 174                 }\r
 175             }\r
 176         }\r
 177 \r
 178     }\r
 179     \r
 180     /* This creates a Frame for the demo applet. */\r
 181     protected Frame createDemoFrame(DemoApplet applet) {\r
 182         return new LauncherFrame(applet);\r
 183     }\r
 184 \r
 185     /**\r
 186      * The main function which defines the behavior of the Demo\r
 187      * applet when an applet is started.\r
 188      */\r
 189     public static void main(String[] args) {\r
 190         new Launcher().showDemo();\r
 191     }\r
 192 }\r