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