src/share/classes/javax/swing/tree/DefaultTreeCellRenderer.java

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  32 import java.awt.Graphics;
  33 import java.awt.Insets;
  34 import java.awt.Rectangle;
  35 import javax.swing.plaf.ColorUIResource;
  36 import javax.swing.plaf.FontUIResource;
  37 import javax.swing.plaf.UIResource;
  38 import javax.swing.plaf.basic.BasicGraphicsUtils;
  39 import javax.swing.Icon;
  40 import javax.swing.JLabel;
  41 import javax.swing.JTree;
  42 import javax.swing.LookAndFeel;
  43 import javax.swing.UIManager;
  44 import javax.swing.border.EmptyBorder;
  45 import sun.swing.DefaultLookup;
  46 
  47 /**
  48  * Displays an entry in a tree.
  49  * <code>DefaultTreeCellRenderer</code> is not opaque and
  50  * unless you subclass paint you should not change this.
  51  * See <a
  52  href="http://docs.oracle.com/javase/tutorial/uiswing/components/tree.html">How to Use Trees</a>
  53  * in <em>The Java Tutorial</em>
  54  * for examples of customizing node display using this class.
  55  * <p>
  56  * The set of icons and colors used by {@code DefaultTreeCellRenderer}
  57  * can be configured using the various setter methods. The value for
  58  * each property is initialized from the defaults table. When the
  59  * look and feel changes ({@code updateUI} is invoked), any properties
  60  * that have a value of type {@code UIResource} are refreshed from the
  61  * defaults table. The following table lists the mapping between
  62  * {@code DefaultTreeCellRenderer} property and defaults table key:
  63  * <table border="1" cellpadding="1" cellspacing="0" summary="">
  64  *   <tr valign="top"  align="left">
  65  *     <th style="background-color:#CCCCFF" align="left">Property:
  66  *     <th style="background-color:#CCCCFF" align="left">Key:
  67  *   <tr><td>"leafIcon"<td>"Tree.leafIcon"
  68  *   <tr><td>"closedIcon"<td>"Tree.closedIcon"
  69  *   <tr><td>"openIcon"<td>"Tree.openIcon"
  70  *   <tr><td>"textSelectionColor"<td>"Tree.selectionForeground"
  71  *   <tr><td>"textNonSelectionColor"<td>"Tree.textForeground"
  72  *   <tr><td>"backgroundSelectionColor"<td>"Tree.selectionBackground"




  32 import java.awt.Graphics;
  33 import java.awt.Insets;
  34 import java.awt.Rectangle;
  35 import javax.swing.plaf.ColorUIResource;
  36 import javax.swing.plaf.FontUIResource;
  37 import javax.swing.plaf.UIResource;
  38 import javax.swing.plaf.basic.BasicGraphicsUtils;
  39 import javax.swing.Icon;
  40 import javax.swing.JLabel;
  41 import javax.swing.JTree;
  42 import javax.swing.LookAndFeel;
  43 import javax.swing.UIManager;
  44 import javax.swing.border.EmptyBorder;
  45 import sun.swing.DefaultLookup;
  46 
  47 /**
  48  * Displays an entry in a tree.
  49  * <code>DefaultTreeCellRenderer</code> is not opaque and
  50  * unless you subclass paint you should not change this.
  51  * See <a
  52  href="https://docs.oracle.com/javase/tutorial/uiswing/components/tree.html">How to Use Trees</a>
  53  * in <em>The Java Tutorial</em>
  54  * for examples of customizing node display using this class.
  55  * <p>
  56  * The set of icons and colors used by {@code DefaultTreeCellRenderer}
  57  * can be configured using the various setter methods. The value for
  58  * each property is initialized from the defaults table. When the
  59  * look and feel changes ({@code updateUI} is invoked), any properties
  60  * that have a value of type {@code UIResource} are refreshed from the
  61  * defaults table. The following table lists the mapping between
  62  * {@code DefaultTreeCellRenderer} property and defaults table key:
  63  * <table border="1" cellpadding="1" cellspacing="0" summary="">
  64  *   <tr valign="top"  align="left">
  65  *     <th style="background-color:#CCCCFF" align="left">Property:
  66  *     <th style="background-color:#CCCCFF" align="left">Key:
  67  *   <tr><td>"leafIcon"<td>"Tree.leafIcon"
  68  *   <tr><td>"closedIcon"<td>"Tree.closedIcon"
  69  *   <tr><td>"openIcon"<td>"Tree.openIcon"
  70  *   <tr><td>"textSelectionColor"<td>"Tree.selectionForeground"
  71  *   <tr><td>"textNonSelectionColor"<td>"Tree.textForeground"
  72  *   <tr><td>"backgroundSelectionColor"<td>"Tree.selectionBackground"