org.simantics.district.maps/src/org/simantics/maps/sg/MapAttributionNode.java

   1 package org.simantics.maps.sg;
   2
   3 import java.awt.AlphaComposite;
   4 import java.awt.BasicStroke;
   5 import java.awt.Color;
   6 import java.awt.Font;
   7 import java.awt.FontMetrics;
   8 import java.awt.Graphics2D;
   9 import java.awt.geom.AffineTransform;
  10 import java.awt.geom.Rectangle2D;
  11
  12 import org.simantics.scenegraph.g2d.G2DNode;
  13
  14 public class MapAttributionNode extends G2DNode {
  15
  16     private static final long serialVersionUID = 7994492218791569147L;
  17
  18     private static final Color GRAY              = new Color(100, 100, 100);
  19
  20     protected boolean enabled = true;
  21
  22     @Override
  23     public void render(Graphics2D g2d) {
  24         if (!enabled)
  25             return;
  26
  27         AffineTransform ot = g2d.getTransform();
  28         Color originalColor = g2d.getColor();
  29         g2d.transform(transform);
  30
  31         AffineTransform tr = g2d.getTransform();
  32
  33         g2d.setTransform(new AffineTransform());
  34         // do the rendering magic
  35
  36         Font rulerFont = new Font("Tahoma", Font.PLAIN, 9);
  37
  38         //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  39         g2d.setStroke(new BasicStroke(1));
  40         g2d.setColor(new Color(0.9f, 0.9f, 0.9f, 0.75f));
  41
  42         Rectangle2D bounds = g2d.getClipBounds();
  43         if (bounds == null)
  44             return; // FIXME
  45
  46         String str = "Map data © OpenStreetMap contributors";
  47         FontMetrics fm = g2d.getFontMetrics();
  48         Rectangle2D r = fm.getStringBounds(str, g2d);
  49
  50         double pixels = r.getWidth();
  51         double scaleRight = bounds.getMaxX();
  52         double newScaleLeft = scaleRight - pixels;
  53         double y = bounds.getMaxY();
  54         g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f));
  55
  56
  57         Rectangle2D vertical = new Rectangle2D.Double(newScaleLeft - 10, y - 15, pixels + 10, 15);
  58         g2d.fill(vertical);
  59
  60         g2d.setColor(GRAY);
  61         g2d.setFont(rulerFont);
  62
  63
  64         g2d.setColor(Color.BLACK);
  65         g2d.drawString(str, (int)newScaleLeft - 5, (int)y - 5);
  66
  67         g2d.setColor(originalColor);
  68         g2d.setTransform(ot);
  69     }
  70
  71     @Override
  72     public Rectangle2D getBoundsInLocal() {
  73         return null;
  74     }
  75
  76     public boolean isEnabled() {
  77         return enabled;
  78     }
  79
  80     public void setEnabled(boolean enabled) {
  81         this.enabled = enabled;
  82     }
  83 }