Version 1, September 2006

[GpsPrune.git] / tim / prune / gui / GenericChart.java

diff --git a/tim/prune/gui/GenericChart.java b/tim/prune/gui/GenericChart.java
new file mode 100644 (file)
index 0000000..081c823
--- /dev/null
+++ b/tim/prune/gui/GenericChart.java
@@ -0,0 +1,103 @@
+package tim.prune.gui;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+
+import tim.prune.I18nManager;
+import tim.prune.data.TrackInfo;
+
+
+/**
+ * Generic chart component to form baseclass for map and profile charts
+ */
+public abstract class GenericChart extends GenericDisplay implements MouseListener
+{
+       protected Dimension MINIMUM_SIZE = new Dimension(200, 250);
+       protected static final int BORDER_WIDTH = 8;
+
+       // Colours
+       private static final Color COLOR_BORDER_BG   = Color.GRAY;
+       private static final Color COLOR_CHART_BG    = Color.WHITE;
+       private static final Color COLOR_CHART_LINE  = Color.BLACK;
+       private static final Color COLOR_NODATA_TEXT = Color.GRAY;
+
+
+       /**
+        * Constructor
+        * @param inTrackInfo track info object
+        */
+       protected GenericChart(TrackInfo inTrackInfo)
+       {
+               super(inTrackInfo);
+       }
+
+       /**
+        * Override minimum size method to restrict map
+        */
+       public Dimension getMinimumSize()
+       {
+               return MINIMUM_SIZE;
+       }
+
+       /**
+        * Override paint method to draw map
+        */
+       public void paint(Graphics g)
+       {
+               super.paint(g);
+               int width = getWidth();
+               int height = getHeight();
+               // border background
+               g.setColor(COLOR_BORDER_BG);
+               g.fillRect(0, 0, width, height);
+               if (width < 2*BORDER_WIDTH || height < 2*BORDER_WIDTH) return;
+               // blank graph area, with line border
+               g.setColor(COLOR_CHART_BG);
+               g.fillRect(BORDER_WIDTH, BORDER_WIDTH, width - 2*BORDER_WIDTH, height-2*BORDER_WIDTH);
+               g.setColor(COLOR_CHART_LINE);
+               g.drawRect(BORDER_WIDTH, BORDER_WIDTH, width - 2*BORDER_WIDTH, height-2*BORDER_WIDTH);
+               // Display message if no data to be displayed
+               if (_track == null || _track.getNumPoints() <= 0)
+               {
+                       g.setColor(COLOR_NODATA_TEXT);
+                       g.drawString(I18nManager.getText("display.nodata"), 50, height/2);
+               }
+       }
+
+
+       /**
+        * Method to inform map that data has changed
+        */
+       public void dataUpdated()
+       {
+               repaint();
+       }
+
+
+       /**
+        * mouse enter events ignored
+        */
+       public void mouseEntered(MouseEvent e)
+       {}
+
+       /**
+        * mouse exit events ignored
+        */
+       public void mouseExited(MouseEvent e)
+       {}
+
+       /**
+        * ignore mouse pressed for now too
+        */
+       public void mousePressed(MouseEvent e)
+       {}
+
+       /**
+        * and also ignore mouse released
+        */
+       public void mouseReleased(MouseEvent e)
+       {}
+}