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 import org.simantics.scenegraph.utils.DPIUtil;
  14
  15 public class MapAttributionNode extends G2DNode {
  16
  17     private static final long serialVersionUID = 7994492218791569147L;
  18
  19     private static final Color GRAY              = new Color(100, 100, 100);
  20
  21     protected boolean enabled = true;
  22
  23     @Override
  24     public void render(Graphics2D g2d) {
  25         if (!enabled)
  26             return;
  27
  28         AffineTransform ot = g2d.getTransform();
  29         Color originalColor = g2d.getColor();
  30         g2d.transform(transform);
  31
  32         g2d.setTransform(new AffineTransform());
  33         // do the rendering magic
  34
  35         Font rulerFont = new Font("Tahoma", Font.PLAIN, DPIUtil.upscale(9));
  36
  37         //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  38         g2d.setStroke(new BasicStroke(1));
  39         g2d.setColor(new Color(0.9f, 0.9f, 0.9f, 0.75f));
  40
  41         Rectangle2D bounds = g2d.getClipBounds();
  42         if (bounds == null)
  43             return; // FIXME
  44
  45         String str = "Map data \u00A9 OpenStreetMap contributors";
  46
  47         g2d.setFont(rulerFont);
  48         FontMetrics fm = g2d.getFontMetrics();
  49         Rectangle2D r = fm.getStringBounds(str, g2d);
  50
  51         double pixels = r.getWidth();
  52         double scaleRight = bounds.getMaxX();
  53         double newScaleLeft = scaleRight - pixels;
  54         double y = bounds.getMaxY();
  55         g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f));
  56
  57
  58         Rectangle2D vertical = new Rectangle2D.Double(newScaleLeft - 10, y - 15, pixels + 10, 15);
  59         g2d.fill(vertical);
  60
  61         g2d.setColor(GRAY);
  62         g2d.setFont(rulerFont);
  63
  64
  65         g2d.setColor(Color.BLACK);
  66         g2d.drawString(str, (int)newScaleLeft - 5, (int)y - 5);
  67
  68         g2d.setColor(originalColor);
  69         g2d.setTransform(ot);
  70     }
  71
  72     @Override
  73     public Rectangle2D getBoundsInLocal() {
  74         return null;
  75     }
  76
  77     public boolean isEnabled() {
  78         return enabled;
  79     }
  80
  81     public void setEnabled(boolean enabled) {
  82         this.enabled = enabled;
  83     }
  84 }