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
  22         /**
  23          * Get the (unique) instance of this class.
  24          *
  25          * @return the (unique) instance
  26          */
  27         static public UiColors getInstance() {
  28                 synchronized (lock) {
  29                         if (instance == null)
  30                                 instance = new UiColors();
  31                 }
  32
  33                 return instance;
  34         }
  35
  36         public enum Element {
  37                 DEFAULT, ACTION_KEY, ACTION_DESC, LINE_MESSAGE, LINE_MESSAGE_ERR, LINE_MESSAGE_QUESTION, LINE_MESSAGE_ANS, CONTACT_LINE, CONTACT_LINE_SEPARATOR, CONTACT_LINE_SELECTED, CONTACT_LINE_SEPARATOR_SELECTED;
  38
  39                 /**
  40                  * Get the foreground colour of this element.
  41                  *
  42                  * @return the colour
  43                  */
  44                 public TextColor getForegroundColor() {
  45                         return UiColors.getInstance().getForegroundColor(this);
  46                 }
  47
  48                 /**
  49                  * Get the background colour of this element.
  50                  *
  51                  * @return the colour
  52                  */
  53                 public TextColor getBackgroundColor() {
  54                         return UiColors.getInstance().getBackgroundColor(this);
  55                 }
  56
  57                 public Label createLabel(String text) {
  58                         return UiColors.getInstance().createLabel(this, text);
  59                 }
  60
  61                 public void themeLabel(Label lbl) {
  62                         UiColors.getInstance().themeLabel(this, lbl);
  63                 }
  64         }
  65
  66         private Label createLabel(Element el, String text) {
  67                 Label lbl = new Label(text);
  68                 themeLabel(el, lbl);
  69                 return lbl;
  70         }
  71
  72         private void themeLabel(Element el, Label lbl) {
  73                 lbl.setForegroundColor(el.getForegroundColor());
  74                 lbl.setBackgroundColor(el.getBackgroundColor());
  75         }
  76
  77         private TextColor getForegroundColor(Element el) {
  78                 if (mapForegroundColor.containsKey(el)) {
  79                         return mapForegroundColor.get(el);
  80                 }
  81
  82                 return TextColor.ANSI.BLACK;
  83         }
  84
  85         private TextColor getBackgroundColor(Element el) {
  86                 if (mapBackgroundColor.containsKey(el)) {
  87                         return mapBackgroundColor.get(el);
  88                 }
  89
  90                 return TextColor.ANSI.WHITE;
  91         }
  92
  93         private UiColors() {
  94                 mapForegroundColor = new HashMap<Element, TextColor>();
  95                 mapBackgroundColor = new HashMap<Element, TextColor>();
  96
  97                 // TODO: get from a file instead?
  98                 // TODO: use a theme that doesn't give headaches...
  99                 addEl(Element.ACTION_KEY, TextColor.ANSI.WHITE, TextColor.ANSI.RED);
 100                 addEl(Element.ACTION_DESC, TextColor.ANSI.WHITE, TextColor.ANSI.BLUE);
 101                 addEl(Element.CONTACT_LINE, TextColor.ANSI.WHITE, TextColor.ANSI.BLACK);
 102                 addEl(Element.CONTACT_LINE_SELECTED, TextColor.ANSI.WHITE,
 103                                 TextColor.ANSI.BLUE);
 104                 addEl(Element.CONTACT_LINE_SEPARATOR, TextColor.ANSI.RED, TextColor.ANSI.BLACK);
 105                 addEl(Element.CONTACT_LINE_SEPARATOR_SELECTED, TextColor.ANSI.RED,
 106                                 TextColor.ANSI.BLUE);
 107                 addEl(Element.LINE_MESSAGE, TextColor.ANSI.BLUE, TextColor.ANSI.WHITE);
 108                 addEl(Element.LINE_MESSAGE_ERR, TextColor.ANSI.RED,
 109                                 TextColor.ANSI.WHITE);
 110                 addEl(Element.LINE_MESSAGE_QUESTION, TextColor.ANSI.BLUE,
 111                                 TextColor.ANSI.WHITE);
 112                 addEl(Element.LINE_MESSAGE_ANS, TextColor.ANSI.BLUE,
 113                                 TextColor.ANSI.BLACK);
 114         }
 115
 116         private void addEl(Element el, TextColor fore, TextColor back) {
 117                 mapForegroundColor.put(el, fore);
 118                 mapBackgroundColor.put(el, back);
 119         }
 120
 121 }