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

   1 package net.sf.openrocket.gui.main.componenttree;
   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.DropMode;
  10 import javax.swing.Icon;
  11 import javax.swing.JTree;
  12
  13 import net.sf.openrocket.document.OpenRocketDocument;
  14
  15
  16 public class ComponentTree extends JTree {
  17         private static final long serialVersionUID = 1L;
  18
  19         public ComponentTree(OpenRocketDocument document) {
  20                 super();
  21                 this.setModel(new ComponentTreeModel(document.getRocket(), this));
  22                 this.setToggleClickCount(0);
  23
  24                 javax.swing.plaf.basic.BasicTreeUI ui = new javax.swing.plaf.basic.BasicTreeUI();
  25                 this.setUI(ui);
  26
  27                 ui.setExpandedIcon(TreeIcon.MINUS);
  28                 ui.setCollapsedIcon(TreeIcon.PLUS);
  29
  30                 ui.setLeftChildIndent(15);
  31
  32
  33                 setBackground(Color.WHITE);
  34                 setShowsRootHandles(false);
  35
  36                 setCellRenderer(new ComponentTreeRenderer());
  37
  38                 this.setDragEnabled(true);
  39                 this.setDropMode(DropMode.INSERT);
  40                 this.setTransferHandler(new ComponentTreeTransferHandler(document));
  41
  42                 // Expand whole tree by default
  43                 expandTree();
  44         }
  45
  46         public void expandTree() {
  47                 for (int i = 0; i < getRowCount(); i++)
  48                         expandRow(i);
  49
  50         }
  51
  52         private static class TreeIcon implements Icon {
  53                 public static final Icon PLUS = new TreeIcon(true);
  54                 public static final Icon MINUS = new TreeIcon(false);
  55
  56                 // Implementation:
  57
  58                 private final static int width = 9;
  59                 private final static int height = 9;
  60                 private final static BasicStroke stroke = new BasicStroke(2);
  61                 private boolean plus;
  62
  63                 private TreeIcon(boolean plus) {
  64                         this.plus = plus;
  65                 }
  66
  67                 public void paintIcon(Component c, Graphics g, int x, int y) {
  68                         Graphics2D g2 = (Graphics2D) g.create();
  69
  70                         g2.setColor(Color.WHITE);
  71                         g2.fillRect(x, y, width, height);
  72
  73                         g2.setColor(Color.DARK_GRAY);
  74                         g2.drawRect(x, y, width, height);
  75
  76                         g2.setStroke(stroke);
  77                         g2.drawLine(x + 3, y + (height + 1) / 2, x + width - 2, y + (height + 1) / 2);
  78                         if (plus)
  79                                 g2.drawLine(x + (width + 1) / 2, y + 3, x + (width + 1) / 2, y + height - 2);
  80
  81                         g2.dispose();
  82                 }
  83
  84                 public int getIconWidth() {
  85                         return width;
  86                 }
  87
  88                 public int getIconHeight() {
  89                         return height;
  90                 }
  91         }
  92
  93 }