src/be/nikiroo/jvcard/tui/UiColors.java

   1 package be.nikiroo.jvcard.tui;
   2
   3 import java.util.HashMap;
   4 import java.util.Map;
   5
   6 import com.googlecode.lanterna.TextColor;
   7 import com.googlecode.lanterna.gui2.Label;
   8
   9 /**
  10  * All colour information must come from here.
  11  *
  12  * @author niki
  13  *
  14  */
  15 public class UiColors {
  16         static private Object lock = new Object();
  17         static private UiColors instance = null;
  18
  19         private Map<Element, TextColor> mapForegroundColor = null;
  20         private Map<Element, TextColor> mapBackgroundColor = null;
  21         private boolean utf = true;
  22
  23         /**
  24          * Get the (unique) instance of this class.
  25          *
  26          * @return the (unique) instance
  27          */
  28         static public UiColors getInstance() {
  29                 synchronized (lock) {
  30                         if (instance == null)
  31                                 instance = new UiColors();
  32                 }
  33
  34                 return instance;
  35         }
  36
  37         public enum Element {
  38                 DEFAULT, //
  39                 TITLE_MAIN, TITLE_VARIABLE, TITLE_COUNT, //
  40                 ACTION_KEY, ACTION_DESC, //
  41                 LINE_MESSAGE, LINE_MESSAGE_ERR, LINE_MESSAGE_QUESTION, LINE_MESSAGE_ANS, //
  42                 CONTACT_LINE, CONTACT_LINE_SEPARATOR, CONTACT_LINE_SELECTED, CONTACT_LINE_SEPARATOR_SELECTED, CONTACT_LINE_DIRTY, CONTACT_LINE_DIRTY_SELECTED;
  43
  44                 /**
  45                  * Get the foreground colour of this element.
  46                  *
  47                  * @return the colour
  48                  */
  49                 public TextColor getForegroundColor() {
  50                         return UiColors.getInstance().getForegroundColor(this);
  51                 }
  52
  53                 /**
  54                  * Get the background colour of this element.
  55                  *
  56                  * @return the colour
  57                  */
  58                 public TextColor getBackgroundColor() {
  59                         return UiColors.getInstance().getBackgroundColor(this);
  60                 }
  61
  62                 public Label createLabel(String text) {
  63                         return UiColors.getInstance().createLabel(this, text);
  64                 }
  65
  66                 public void themeLabel(Label lbl) {
  67                         UiColors.getInstance().themeLabel(this, lbl);
  68                 }
  69         }
  70
  71         /**
  72          * Check if unicode characters should be used.
  73          *
  74          * @return TRUE to allow unicode
  75          */
  76         public boolean isUnicode() {
  77                 return utf;
  78         }
  79
  80         /**
  81          * Allow or disallow unicode characters in the program.
  82          *
  83          * @param utf
  84          *            TRUE to allow unuciode, FALSE to only allow ASCII characters
  85          */
  86         public void setUnicode(boolean utf) {
  87                 this.utf = utf;
  88         }
  89
  90         private Label createLabel(Element el, String text) {
  91                 Label lbl = new Label(text);
  92                 themeLabel(el, lbl);
  93                 return lbl;
  94         }
  95
  96         private void themeLabel(Element el, Label lbl) {
  97                 lbl.setForegroundColor(el.getForegroundColor());
  98                 lbl.setBackgroundColor(el.getBackgroundColor());
  99         }
 100
 101         private TextColor getForegroundColor(Element el) {
 102                 if (mapForegroundColor.containsKey(el)) {
 103                         return mapForegroundColor.get(el);
 104                 }
 105
 106                 return TextColor.ANSI.BLACK;
 107         }
 108
 109         private TextColor getBackgroundColor(Element el) {
 110                 if (mapBackgroundColor.containsKey(el)) {
 111                         return mapBackgroundColor.get(el);
 112                 }
 113
 114                 return TextColor.ANSI.WHITE;
 115         }
 116
 117         private UiColors() {
 118                 mapForegroundColor = new HashMap<Element, TextColor>();
 119                 mapBackgroundColor = new HashMap<Element, TextColor>();
 120
 121                 // TODO: get from a file instead?
 122                 // TODO: use a theme that doesn't give headaches...
 123                 addEl(Element.ACTION_KEY, TextColor.ANSI.WHITE, TextColor.ANSI.RED);
 124                 addEl(Element.ACTION_DESC, TextColor.ANSI.WHITE, TextColor.ANSI.BLUE);
 125                 addEl(Element.CONTACT_LINE, TextColor.ANSI.WHITE, TextColor.ANSI.BLACK);
 126                 addEl(Element.CONTACT_LINE_SELECTED, TextColor.ANSI.WHITE,
 127                                 TextColor.ANSI.BLUE);
 128                 addEl(Element.CONTACT_LINE_SEPARATOR, TextColor.ANSI.RED,
 129                                 TextColor.ANSI.BLACK);
 130                 addEl(Element.CONTACT_LINE_SEPARATOR_SELECTED, TextColor.ANSI.RED,
 131                                 TextColor.ANSI.BLUE);
 132                 addEl(Element.LINE_MESSAGE, TextColor.ANSI.BLUE, TextColor.ANSI.WHITE);
 133                 addEl(Element.LINE_MESSAGE_ERR, TextColor.ANSI.RED,
 134                                 TextColor.ANSI.WHITE);
 135                 addEl(Element.LINE_MESSAGE_QUESTION, TextColor.ANSI.BLUE,
 136                                 TextColor.ANSI.WHITE);
 137                 addEl(Element.LINE_MESSAGE_ANS, TextColor.ANSI.BLUE,
 138                                 TextColor.ANSI.BLACK);
 139                 addEl(Element.TITLE_MAIN, TextColor.ANSI.WHITE, TextColor.ANSI.BLUE);
 140                 addEl(Element.TITLE_VARIABLE, TextColor.ANSI.GREEN, TextColor.ANSI.BLUE);
 141                 addEl(Element.TITLE_COUNT, TextColor.ANSI.RED, TextColor.ANSI.BLUE);
 142         }
 143
 144         private void addEl(Element el, TextColor fore, TextColor back) {
 145                 mapForegroundColor.put(el, fore);
 146                 mapBackgroundColor.put(el, back);
 147         }
 148 }