libjava/javax/swing/plaf/basic/BasicListUI.java

   1 package javax.swing.plaf.basic;
   2
   3 import javax.swing.plaf.*;
   4 import javax.swing.*;
   5 import java.awt.*;
   6
   7
   8 public class BasicListUI extends ListUI
   9 {
  10     int gap_between_cells;
  11     Color textColor, disabledTextColor, pressedBackgroundColor, normalBackgroundColor;
  12
  13
  14     public static ComponentUI createUI(final JComponent c)
  15     {
  16         return new BasicButtonUI();
  17     }
  18
  19
  20     public void installUI(final JComponent c)
  21     {
  22         super.installUI(c);
  23
  24         textColor                = new Color(0,0,0);
  25         disabledTextColor        = new Color(130, 130, 130);
  26         pressedBackgroundColor   = new Color(150,150,150);
  27         normalBackgroundColor    = new Color(192,192,192);
  28     }
  29
  30     public Dimension getPreferredSize(JComponent c)
  31     {
  32         JList l = (JList) c;
  33
  34         System.out.println("XXXXXXXXXXXXXXXxx   getPreferredSize------------> " + l);
  35
  36
  37         int rows = l.getVisibleRowCount();
  38
  39         ListCellRenderer render = l.getCellRenderer();
  40
  41         int width  = 200;
  42         int height = rows * 16;
  43
  44         if (l.getModel().getSize() == 0)
  45             {
  46                 return new Dimension(width, height);
  47             }
  48
  49         System.out.println("BASIC_LIST_UI ====-> " + l.getModel().getElementAt(0));
  50
  51         Component elt = render.getListCellRendererComponent(l,
  52                                                             l.getModel().getElementAt(0),
  53                                                             0,
  54                                                             false,
  55                                                             false);
  56         Dimension a = elt.getPreferredSize();
  57         if (a == null)
  58             {
  59                 return new Dimension(width, height);
  60             }
  61
  62         return new Dimension(a.width,
  63                              a.height * rows);
  64     }
  65
  66     public void paintBackground(Graphics g,
  67                          JComponent c)
  68     {
  69         Dimension size = getPreferredSize(c);
  70
  71         g.setColor(normalBackgroundColor);
  72         g.fillRect(0,0,size.width, size.height);
  73     }
  74
  75     public void paint(Graphics g,
  76                       JComponent c)
  77     {
  78         JList l = (JList) c;
  79
  80         int rows = l.getVisibleRowCount();
  81
  82         ListCellRenderer render = l.getCellRenderer();
  83
  84         System.out.println("RENDER-JLIST: " + rows + ", " + l.getModel().getSize());
  85
  86         paintBackground(g, c);
  87
  88         if (l.getModel().getSize() == 0)
  89             return;
  90
  91         // use element 0 to figure out how big we are:
  92         Component elt = render.getListCellRendererComponent(l,
  93                                                             l.getModel().getElementAt(0),
  94                                                             0,
  95                                                             false,
  96                                                             false);
  97         Dimension dim = elt.getPreferredSize();
  98
  99         Rectangle a = new Rectangle(0,
 100                                     0,
 101                                     dim.width,
 102                                     dim.height);
 103
 104         for (int i=0;i<l.getModel().getSize();i++)
 105             {
 106                 boolean is_sel = false;
 107                 boolean has_focus = false;
 108
 109                 Component comp = render.getListCellRendererComponent(l,
 110                                                                      l.getModel().getElementAt(i),
 111                                                                      i,
 112                                                                      is_sel,
 113                                                                      has_focus);
 114
 115                 //System.out.println("AAAAA=> " + a + ", " + comp + ", index = " + i);
 116
 117                 comp.setBounds(a);
 118
 119                 comp.paint(g);
 120
 121                 a.y += dim.height + gap_between_cells;
 122             }
 123     }
 124 }
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