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      1 //  2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html#License
      3 /*
      4  *******************************************************************************
      5  * Copyright (C) 1997-2014, International Business Machines Corporation and    *
      6  * others. All Rights Reserved.                                                *
      7  *******************************************************************************
      8  */
      9 package com.ibm.icu.dev.demo.impl;
     10 
     11 import java.awt.Color;
     12 import java.awt.Component;
     13 import java.awt.Container;
     14 import java.awt.Font;
     15 import java.awt.GridBagConstraints;
     16 import java.awt.GridBagLayout;
     17 import java.awt.Insets;
     18 import java.awt.Label;
     19 import java.awt.Panel;
     20 import java.awt.TextComponent;
     21 import java.util.Locale;
     22 
     23 import com.ibm.icu.util.Calendar;
     24 
     25 public class DemoUtility
     26 {
     27     public static final Font titleFont = new Font("TimesRoman",Font.BOLD,18);
     28     public static final Font labelFont = new Font("TimesRoman",Font.BOLD,14);
     29     public static final Font choiceFont = new Font("Helvetica",Font.BOLD,12);
     30     public static final Font editFont = new Font("Helvetica",Font.PLAIN,14);
     31     public static final Font creditFont = new Font("Helvetica",Font.PLAIN,10);
     32     public static final Font numberFont = new Font("sansserif", Font.PLAIN, 14);
     33 
     34     public static final Color bgColor = Color.lightGray;
     35     public static final Color choiceColor = Color.white;
     36 
     37     private static final int getCurrentYear() {
     38         return Calendar.getInstance().get(Calendar.YEAR);
     39     }
     40     public static final String copyright1 =
     41         "Copyright (C) IBM Corp and others. 1997 - "+getCurrentYear()+" All Rights Reserved";
     42 
     43     /**
     44     Provides easy way to use basic functions of GridBagLayout, without
     45     the complications. After building a panel, and inserting all the
     46     * subcomponents, call this to lay it out in the desired number of columns.
     47     */
     48     public static void fixGrid(Container cont, int columns) {
     49         GridBagLayout gridbag = new GridBagLayout();
     50         cont.setLayout(gridbag);
     51 
     52         GridBagConstraints c = new GridBagConstraints();
     53         c.fill = GridBagConstraints.VERTICAL;
     54         c.weightx = 1.0;
     55         c.insets = new Insets(2,2,2,2);
     56 
     57         Component[] components = cont.getComponents();
     58         for (int i = 0; i < components.length; ++i) {
     59             // not used int colNumber = i%columns;
     60             c.gridwidth = 1;    // default
     61             if ((i%columns) == columns - 1)
     62                 c.gridwidth = GridBagConstraints.REMAINDER;    // last in grid
     63             if (components[i] instanceof Label) {
     64                 switch (((Label)components[i]).getAlignment()) {
     65                 case Label.CENTER: c.anchor = GridBagConstraints.CENTER; break;
     66                 case Label.LEFT: c.anchor = GridBagConstraints.WEST; break;
     67                 case Label.RIGHT: c.anchor = GridBagConstraints.EAST; break;
     68                 }
     69             }
     70             gridbag.setConstraints(components[i], c);
     71         }
     72 
     73     }
     74 
     75     /**
     76     Provides easy way to change the spacing around an object in a GridBagLayout.
     77     Call AFTER fixGridBag, passing in the container, the component, and the
     78     new insets.
     79     */
     80     public static void setInsets(Container cont, Component comp, Insets insets) {
     81         GridBagLayout gbl = (GridBagLayout)cont.getLayout();
     82         GridBagConstraints g = gbl.getConstraints(comp);
     83         g.insets = insets;
     84         gbl.setConstraints(comp,g);
     85     }
     86 
     87     public static Panel createSpacer() {
     88         Panel spacer = new Panel();
     89         spacer.setLayout(null);
     90         spacer.setSize(1000, 1);
     91         return spacer;
     92     }
     93 
     94     // to avoid goofy updates and misplaced cursors
     95     public static void setText(TextComponent area, String newText) {
     96         String foo = area.getText();
     97         if (foo.equals(newText)) return;
     98         area.setText(newText);
     99     }
    100 
    101     /**
    102      * Compares two locals. Return value is negative
    103      * if they're different, and more positive the more
    104      * fields that match.
    105      */
    106 
    107     public static int compareLocales(Locale l1, Locale l2)
    108     {
    109         int result = -1;
    110 
    111         if (l1.getLanguage().equals(l2.getLanguage())) {
    112             result += 1;
    113 
    114             if (l1.getCountry().equals(l2.getCountry())) {
    115                 result += 1;
    116 
    117                 if (l1.getVariant().equals(l2.getVariant())) {
    118                     result += 1;
    119                 }
    120             }
    121         }
    122 
    123         return result;
    124     }
    125 
    126     /**
    127      * Get the G7 locale list for demos.
    128      */
    129     public static Locale[] getG7Locales() {
    130         return localeList;
    131     }
    132     private static Locale[] localeList = {
    133         new Locale("DA", "DK", ""),
    134         new Locale("EN", "US", ""),
    135         new Locale("EN", "GB", ""),
    136         new Locale("EN", "CA", ""),
    137         new Locale("FR", "FR", ""),
    138         new Locale("FR", "CA", ""),
    139         new Locale("DE", "DE", ""),
    140         new Locale("IT", "IT", ""),
    141     //new Locale("JA", "JP", ""),
    142     };
    143 }
    144