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

   1 package javax.swing.plaf.basic;
   2
   3 import javax.swing.*;
   4 import javax.swing.plaf.*;
   5 import java.awt.*;
   6
   7
   8 public class BasicButtonUI extends ButtonUI
   9 {
  10     int gap = 3;
  11     //    int y_text_space = 2, x_text_space + 5;
  12
  13     Color textColor, disabledTextColor;
  14     Color pressedBackgroundColor;
  15     Color normalBackgroundColor;
  16
  17
  18     public static ComponentUI createUI(final JComponent c)
  19     {
  20         return new BasicButtonUI();
  21     }
  22
  23
  24     public void installUI(final JComponent c)
  25     {
  26         super.installUI(c);
  27
  28         textColor                = new Color(0,0,0);
  29         disabledTextColor        = new Color(130, 130, 130);
  30         pressedBackgroundColor   = new Color(150,150,150);
  31         pressedBackgroundColor   = new Color(150,150,150);
  32         normalBackgroundColor    = new Color(192,192,192);
  33     }
  34
  35
  36     public Dimension getPreferredSize(JComponent c)
  37     {
  38         AbstractButton b = (AbstractButton)c;
  39         Dimension d = BasicGraphicsUtils.getPreferredSize(b,
  40                                                           gap,
  41                                                           b.getText(),
  42                                                           b.getIcon(),
  43                                                           b.getVerticalAlignment(),
  44                                                           b.getHorizontalAlignment(),
  45                                                           b.getHorizontalTextPosition(),
  46                                                           b.getVerticalTextPosition());
  47         //      System.out.println("^^^^^^^^^^^^^^^^^^^^^^   BASIC-PREF="+d + ",T="+b.text);
  48         return d;
  49     }
  50
  51
  52     public void paint(Graphics g, JComponent c)
  53     {
  54         AbstractButton b = (AbstractButton) c;
  55
  56         Rectangle tr = new Rectangle();
  57         Rectangle ir = new Rectangle();
  58         Rectangle vr = new Rectangle();
  59
  60         Font f = c.getFont();
  61
  62         g.setFont(f);
  63
  64         FontMetrics fm = SwingUtilities.getFontMetrics(f);
  65
  66         Insets i = c.getInsets();
  67
  68         vr.x      = i.left;
  69         vr.y      = i.top;
  70         vr.width  = b.getWidth()  - (i.right  + vr.x);
  71         vr.height = b.getHeight() - (i.bottom + vr.y);
  72
  73         //System.out.println("             VIEW-RECT-BUTTON="+vr+", insets="+i+", FONTM="+fm);
  74
  75         String text = SwingUtilities.layoutCompoundLabel(c,
  76                                                          fm,
  77                                                          b.getText(),
  78                                                          b.getIcon(),
  79                                                          b.getVerticalAlignment(),
  80                                                          b.getHorizontalAlignment(),
  81                                                          b.getVerticalTextPosition(),
  82                                                          b.getHorizontalTextPosition(),
  83                                                          vr,
  84                                                          ir,
  85                                                          tr,
  86                                                          gap);
  87
  88         if (b.getModel().isPressed() ||
  89             b.getModel().isSelected())
  90             {
  91               //System.out.println("paint pressed");
  92                 paintButtonPressed(g, c);
  93             }
  94         else
  95             {
  96               //System.out.println("paint normal");
  97                 paintButtonNormal(g, c);
  98             }
  99
 100         paintIcon(g, c, ir);
 101         paintText(g, c, tr, b.getText());
 102         paintFocus(g, c, vr, tr, ir);
 103     }
 104
 105
 106     protected void paintFocus(Graphics g,
 107                               JComponent c,
 108                               Rectangle vr,
 109                               Rectangle tr,
 110                               Rectangle ir)
 111     {
 112     }
 113
 114     protected void paintIcon(Graphics g,
 115                              JComponent c,
 116                              Rectangle iconRect)
 117     {
 118         AbstractButton b = (AbstractButton) c;
 119         if (b.getIcon() != null)
 120             {
 121                 int x = iconRect.x;
 122                 int y = iconRect.y;
 123
 124                 System.out.println("WE HAVE AN ICON: " + b.getIcon());
 125
 126                 b.getIcon().paintIcon(c, g, x, y);
 127             }
 128         else
 129             {
 130                 //System.out.println("NO ICON FOR BUTTON:" + b.text);
 131             }
 132     }
 133
 134     protected void paintButtonPressed(Graphics g,
 135                                       JComponent b)
 136     {
 137         Dimension size = b.getSize();
 138
 139         g.setColor(pressedBackgroundColor);
 140         g.fillRect(1,1,size.width-2, size.height-2);
 141
 142     }
 143
 144     protected void paintButtonNormal(Graphics g,
 145                                      JComponent b)
 146     {
 147         Dimension size = b.getSize();
 148
 149         g.setColor(normalBackgroundColor);
 150         g.fillRect(1,1,size.width-2, size.height-2);
 151
 152     }
 153
 154     protected void paintText(Graphics g,
 155                              JComponent c,
 156                              Rectangle textRect,
 157                              String text)
 158     {
 159         Font f = c.getFont();
 160
 161         g.setFont(f);
 162
 163         FontMetrics fm = SwingUtilities.getFontMetrics(f);
 164
 165         g.setColor(c.isEnabled() ? textColor : disabledTextColor);
 166
 167         BasicGraphicsUtils.drawString(g,
 168                                       text,
 169                                       0,
 170                                       textRect.x,
 171                                       textRect.y + fm.getAscent()/2);
 172     }
 173 }
 174
 175
 176
 177