tim/prune/gui/GenericChart.java

   1 package tim.prune.gui;
   2
   3 import java.awt.Color;
   4 import java.awt.Dimension;
   5 import java.awt.Graphics;
   6 import java.awt.event.MouseEvent;
   7 import java.awt.event.MouseListener;
   8
   9 import tim.prune.I18nManager;
  10 import tim.prune.config.ColourScheme;
  11 import tim.prune.config.Config;
  12 import tim.prune.data.TrackInfo;
  13
  14
  15 /**
  16  * Generic chart component to form baseclass for map and profile charts
  17  */
  18 public abstract class GenericChart extends GenericDisplay implements MouseListener
  19 {
  20         protected Dimension MINIMUM_SIZE = new Dimension(200, 250);
  21         protected static final int BORDER_WIDTH = 8;
  22
  23         // Colours
  24         private static final Color COLOR_NODATA_TEXT = Color.GRAY;
  25
  26
  27         /**
  28          * Constructor
  29          * @param inTrackInfo track info object
  30          */
  31         protected GenericChart(TrackInfo inTrackInfo)
  32         {
  33                 super(inTrackInfo);
  34         }
  35
  36         /**
  37          * Override minimum size method to restrict map
  38          */
  39         public Dimension getMinimumSize()
  40         {
  41                 return MINIMUM_SIZE;
  42         }
  43
  44         /**
  45          * Override paint method to draw map
  46          * @param inG graphics object
  47          */
  48         public void paint(Graphics inG)
  49         {
  50                 super.paint(inG);
  51                 int width = getWidth();
  52                 int height = getHeight();
  53                 // Get colours
  54                 ColourScheme colourScheme = Config.getColourScheme();
  55                 final Color borderColour = colourScheme.getColour(ColourScheme.IDX_BORDERS);
  56                 final Color backgroundColour = colourScheme.getColour(ColourScheme.IDX_BACKGROUND);
  57                 final Color insideColour = backgroundColour;
  58                 // border background
  59                 inG.setColor(backgroundColour);
  60                 inG.fillRect(0, 0, width, height);
  61                 if (width < 2*BORDER_WIDTH || height < 2*BORDER_WIDTH) return;
  62                 // blank graph area, with line border
  63                 inG.setColor(insideColour);
  64                 inG.fillRect(BORDER_WIDTH, BORDER_WIDTH, width - 2*BORDER_WIDTH, height-2*BORDER_WIDTH);
  65                 // Display message if no data to be displayed
  66                 if (_track == null || _track.getNumPoints() <= 0)
  67                 {
  68                         inG.setColor(COLOR_NODATA_TEXT);
  69                         inG.drawString(I18nManager.getText("display.nodata"), 50, height/2);
  70                 }
  71                 else {
  72                         inG.setColor(borderColour);
  73                         inG.drawRect(BORDER_WIDTH, BORDER_WIDTH, width - 2*BORDER_WIDTH, height-2*BORDER_WIDTH);
  74                 }
  75         }
  76
  77
  78         /**
  79          * Method to inform map that data has changed
  80          */
  81         public void dataUpdated(byte inUpdateType)
  82         {
  83                 repaint();
  84         }
  85
  86
  87         /**
  88          * mouse enter events ignored
  89          */
  90         public void mouseEntered(MouseEvent e)
  91         {}
  92
  93         /**
  94          * mouse exit events ignored
  95          */
  96         public void mouseExited(MouseEvent e)
  97         {}
  98
  99         /**
 100          * ignore mouse pressed for now too
 101          */
 102         public void mousePressed(MouseEvent e)
 103         {}
 104
 105         /**
 106          * and also ignore mouse released
 107          */
 108         public void mouseReleased(MouseEvent e)
 109         {}
 110 }