CD Actual Thematic 7: Programming/CDAT7.iso/demos/VisualAge for Java 2.0 Entry/setup/data1.cab/ide-e/IDE/cache/USIN6P

Java Class File | 1998-09-16 | 5.1 KB | 174 lines

package com.sun.java.swing.plaf.basic;

import com.sun.java.swing.Icon;
import com.sun.java.swing.JComponent;
import com.sun.java.swing.JLabel;
import com.sun.java.swing.JTree;
import com.sun.java.swing.UIManager;
import com.sun.java.swing.tree.TreeCellRenderer;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;

public class BasicTreeCellRenderer extends JLabel implements TreeCellRenderer {
   protected boolean selected;
   protected transient Icon closedIcon;
   protected transient Icon leafIcon;
   protected transient Icon openIcon;
   protected Color textSelectionColor;
   protected Color textNonSelectionColor;
   protected Color backgroundSelectionColor;
   protected Color backgroundNonSelectionColor;
   protected Color borderSelectionColor;

   public BasicTreeCellRenderer() {
      ((JLabel)this).setHorizontalAlignment(2);
      this.setLeafIcon(UIManager.getIcon("Tree.leafIcon"));
      this.setClosedIcon(UIManager.getIcon("Tree.closedIcon"));
      this.setOpenIcon(UIManager.getIcon("Tree.openIcon"));
      this.setTextSelectionColor(UIManager.getColor("Tree.textSelectionColor"));
      this.setTextNonSelectionColor(UIManager.getColor("Tree.textNonSelectionColor"));
      this.setBackgroundSelectionColor(UIManager.getColor("Tree.backgroundSelectionColor"));
      this.setBackgroundNonSelectionColor(UIManager.getColor("Tree.backgroundNonSelectionColor"));
      this.setBorderSelectionColor(UIManager.getColor("Tree.borderSelectionColor"));
   }

   public Color getBackgroundNonSelectionColor() {
      return this.backgroundNonSelectionColor;
   }

   public Color getBackgroundSelectionColor() {
      return this.backgroundSelectionColor;
   }

   public Color getBorderSelectionColor() {
      return this.borderSelectionColor;
   }

   public Icon getClosedIcon() {
      return this.closedIcon;
   }

   public Icon getDefaultClosedIcon() {
      return this.closedIcon;
   }

   public Icon getDefaultLeafIcon() {
      return this.leafIcon;
   }

   public Icon getDefaultOpenIcon() {
      return this.openIcon;
   }

   public Icon getLeafIcon() {
      return this.leafIcon;
   }

   public Icon getOpenIcon() {
      return this.openIcon;
   }

   public Dimension getPreferredSize() {
      Dimension retDimension = super.getPreferredSize();
      if (retDimension != null) {
         retDimension = new Dimension(retDimension.width + 3, retDimension.height);
      }

      return retDimension;
   }

   public Color getTextNonSelectionColor() {
      return this.textNonSelectionColor;
   }

   public Color getTextSelectionColor() {
      return this.textSelectionColor;
   }

   public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus) {
      String stringValue = tree.convertValueToText(value, sel, expanded, leaf, row, hasFocus);
      ((JLabel)this).setFont(((Component)tree).getFont());
      ((JLabel)this).setText(stringValue);
      if (sel) {
         ((Component)this).setForeground(this.getTextSelectionColor());
      } else {
         ((Component)this).setForeground(this.getTextNonSelectionColor());
      }

      if (leaf) {
         ((JLabel)this).setIcon(this.getLeafIcon());
      } else if (expanded) {
         ((JLabel)this).setIcon(this.getOpenIcon());
      } else {
         ((JLabel)this).setIcon(this.getClosedIcon());
      }

      this.selected = sel;
      return this;
   }

   public void paint(Graphics g) {
      Color bColor;
      if (this.selected) {
         bColor = this.getBackgroundSelectionColor();
      } else {
         bColor = this.getBackgroundNonSelectionColor();
         if (bColor == null) {
            bColor = ((Component)this).getBackground();
         }
      }

      if (bColor != null) {
         Icon currentI = ((JLabel)this).getIcon();
         g.setColor(bColor);
         if (currentI != null && ((JLabel)this).getText() != null) {
            int offset = currentI.getIconWidth() + ((JLabel)this).getIconTextGap();
            g.fillRect(offset, 0, ((JComponent)this).getWidth() - 1 - offset, ((JComponent)this).getHeight() - 1);
         } else {
            g.fillRect(0, 0, ((JComponent)this).getWidth() - 1, ((JComponent)this).getHeight() - 1);
         }
      }

      if (this.selected) {
         g.setColor(this.getBorderSelectionColor());
         g.drawRect(0, 0, ((JComponent)this).getWidth() - 1, ((JComponent)this).getHeight() - 1);
      }

      super.paint(g);
   }

   public void setBackgroundNonSelectionColor(Color newColor) {
      this.backgroundNonSelectionColor = newColor;
   }

   public void setBackgroundSelectionColor(Color newColor) {
      this.backgroundSelectionColor = newColor;
   }

   public void setBorderSelectionColor(Color newColor) {
      this.borderSelectionColor = newColor;
   }

   public void setClosedIcon(Icon newIcon) {
      this.closedIcon = newIcon;
   }

   public void setLeafIcon(Icon newIcon) {
      this.leafIcon = newIcon;
   }

   public void setOpenIcon(Icon newIcon) {
      this.openIcon = newIcon;
   }

   public void setTextNonSelectionColor(Color newColor) {
      this.textNonSelectionColor = newColor;
   }

   public void setTextSelectionColor(Color newColor) {
      this.textSelectionColor = newColor;
   }
}