src/javajs/swing/JPanel.java

   1 package javajs.swing;
   2
   3 import javajs.awt.BorderLayout;
   4 import javajs.awt.LayoutManager;
   5 import javajs.util.SB;
   6
   7 public class JPanel extends JComponent {
   8
   9         //private LayoutManager layoutManager;
  10
  11         private Grid grid;
  12
  13         private int nElements;
  14         private JComponent last;
  15
  16
  17         /**
  18          * @param manager  ignored. we just use the layout designations with a grid
  19          */
  20         public JPanel(LayoutManager manager) {
  21                 super("JP");
  22                 //this.layoutManager = manager;
  23                 grid = new Grid(10,10);
  24         }
  25
  26         public void add(JComponent btn, Object c) {
  27                 last = (++nElements == 1 ? btn : null);
  28                 if (c instanceof String) {
  29                         if (c.equals(BorderLayout.NORTH))
  30                                 c = new GridBagConstraints(0, 0, 3, 1, 0, 0, GridBagConstraints.CENTER,
  31                                                 0, null, 0, 0);
  32                         else if (c.equals(BorderLayout.SOUTH))
  33                                 c = new GridBagConstraints(0, 2, 3, 1, 0, 0, GridBagConstraints.CENTER,
  34                                                 0, null, 0, 0);
  35                         else if (c.equals(BorderLayout.EAST))
  36                                 c = new GridBagConstraints(2, 1, 1, 1, 0, 0, GridBagConstraints.EAST,
  37                                                 0, null, 0, 0);
  38                         else if (c.equals(BorderLayout.WEST))
  39                                 c = new GridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.WEST,
  40                                                 0, null, 0, 0);
  41                         else
  42                                 c = new GridBagConstraints(1, 1, 1, 1, 0, 0, GridBagConstraints.CENTER,
  43                                                 0, null, 0, 0);
  44                 }
  45                 grid.add(btn, (GridBagConstraints) c);
  46         }
  47
  48         @Override
  49         public String toHTML() {
  50                 if (last != null) {
  51                         // only one element
  52                         grid = new Grid(1, 1);
  53                         grid.add(last, new GridBagConstraints(0, 0, 1, 1, 0, 0,
  54                                         GridBagConstraints.CENTER, 0, null, 0, 0));
  55                         last = null;
  56                 }
  57                 SB sb = new SB();
  58                 sb.append("\n<div id='" + id + "' class='JPanel' style='"
  59                                 + getCSSstyle(100, 100) + "'>\n");
  60                 sb.append("\n<span id='" + id + "_minimizer' style='width:" + minWidth
  61                                 + "px;height:" + minHeight + "px;'>");
  62                 sb.append(grid.toHTML(id));
  63                 sb.append("</span>");
  64                 sb.append("\n</div>\n");
  65                 return sb.toString();
  66         }
  67 }