git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/gui/main/componenttree/ComponentTreeRenderer.java

   1 package net.sf.openrocket.gui.main.componenttree;
   2
   3
   4
   5 import java.awt.Component;
   6
   7 import javax.swing.JTree;
   8 import javax.swing.tree.DefaultTreeCellRenderer;
   9
  10 import net.sf.openrocket.gui.main.ComponentIcons;
  11 import net.sf.openrocket.rocketcomponent.RocketComponent;
  12 import net.sf.openrocket.unit.UnitGroup;
  13 import net.sf.openrocket.util.TextUtil;
  14
  15 public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
  16
  17         @Override
  18         public Component getTreeCellRendererComponent(
  19                         JTree tree,
  20                         Object value,
  21                         boolean sel,
  22                         boolean expanded,
  23                         boolean leaf,
  24                         int row,
  25                         boolean hasFocus1) {
  26
  27                 super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus1);
  28
  29                 // Set icon
  30                 setIcon(ComponentIcons.getSmallIcon(value.getClass()));
  31
  32                 // Set tooltip
  33                 RocketComponent c = (RocketComponent) value;
  34                 this.setToolTipText(getToolTip(c));
  35
  36                 return this;
  37         }
  38
  39
  40         private String getToolTip(RocketComponent c) {
  41                 StringBuilder sb = new StringBuilder();
  42                 sb.append("<html>");
  43
  44                 sb.append("<b>").append(c.getName()).append("</b>");
  45                 if (c.isMassive()) {
  46                         sb.append(" (").append(UnitGroup.UNITS_MASS.toStringUnit(c.getMass())).append(")");
  47                 }
  48
  49                 String comment = c.getComment().trim();
  50                 if (comment.length() > 0) {
  51                         comment = TextUtil.htmlEncode(comment);
  52                         comment = comment.replace("\n", "<br>");
  53                         sb.append("<br>").append(comment);
  54                 }
  55
  56                 return sb.toString();
  57         }
  58
  59 }