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

   1 package net.sf.openrocket.gui.main;
   2
   3 import java.awt.BasicStroke;
   4 import java.awt.Color;
   5 import java.awt.Component;
   6 import java.awt.Graphics;
   7 import java.awt.Graphics2D;
   8
   9 import javax.swing.Icon;
  10 import javax.swing.JTree;
  11
  12 import net.sf.openrocket.rocketcomponent.RocketComponent;
  13
  14
  15 public class ComponentTree extends JTree {
  16         private static final long serialVersionUID = 1L;
  17
  18         public ComponentTree(RocketComponent root) {
  19                 super();
  20                 this.setModel(new ComponentTreeModel(root,this));
  21                 this.setToggleClickCount(0);
  22
  23                 javax.swing.plaf.basic.BasicTreeUI ui = new javax.swing.plaf.basic.BasicTreeUI();
  24                 this.setUI(ui);
  25
  26                 ui.setExpandedIcon(TreeIcon.MINUS);
  27                 ui.setCollapsedIcon(TreeIcon.PLUS);
  28
  29                 ui.setLeftChildIndent(15);
  30
  31
  32                 setBackground(Color.WHITE);
  33                 setShowsRootHandles(false);
  34
  35                 setCellRenderer(new ComponentTreeRenderer());
  36
  37                 // Expand whole tree by default
  38                 expandTree();
  39         }
  40
  41
  42         public void expandTree() {
  43                 for (int i=0; i<getRowCount(); i++)
  44                         expandRow(i);
  45
  46         }
  47
  48         private static class TreeIcon implements Icon{
  49                 public static final Icon PLUS = new TreeIcon(true);
  50                 public static final Icon MINUS = new TreeIcon(false);
  51
  52                 // Implementation:
  53
  54             private final static int width = 9;
  55             private final static int height = 9;
  56             private final static BasicStroke stroke = new BasicStroke(2);
  57             private boolean plus;
  58
  59             private TreeIcon(boolean plus) {
  60                 this.plus = plus;
  61             }
  62
  63             public void paintIcon(Component c, Graphics g, int x, int y) {
  64                 Graphics2D g2 = (Graphics2D)g.create();
  65
  66                 g2.setColor(Color.WHITE);
  67                 g2.fillRect(x,y,width,height);
  68
  69                 g2.setColor(Color.DARK_GRAY);
  70                 g2.drawRect(x,y,width,height);
  71
  72                 g2.setStroke(stroke);
  73                 g2.drawLine(x+3, y+(height+1)/2, x+width-2, y+(height+1)/2);
  74                 if (plus)
  75                         g2.drawLine(x+(width+1)/2, y+3, x+(width+1)/2, y+height-2);
  76
  77                 g2.dispose();
  78             }
  79
  80             public int getIconWidth() {
  81                 return width;
  82             }
  83
  84             public int getIconHeight() {
  85                 return height;
  86             }
  87         }
  88
  89 }
  90
  91