PC Plus SuperCD (UK) 2000 March/pcp161a.iso/handson/files/copyjava.exe/com/sun/java/swing/text/WrappedPlainView.class

Java Class File | 1998-02-26 | 6.2 KB | 181 lines

package com.sun.java.swing.text;

import com.sun.java.swing.event.DocumentEvent;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.Shape;

public class WrappedPlainView extends BoxView implements TabExpander {
   FontMetrics metrics;
   Segment lineBuffer = new Segment();
   int layoutWidth = 32767;
   int tabSize;
   int sel0;
   int sel1;
   Color unselected;
   Color selected;

   public WrappedPlainView(Element var1) {
      super(var1, 1);
   }

   protected int getTabSize() {
      Integer var1 = (Integer)((View)this).getDocument().getProperty("tabSize");
      int var2 = var1 != null ? var1 : 8;
      return var2;
   }

   protected void drawLine(int var1, int var2, Graphics var3, int var4, int var5) {
      try {
         var2 = Math.min(((View)this).getDocument().getLength(), var2);
         if (this.sel0 == this.sel1) {
            this.drawUnselectedText(var3, var4, var5, var1, var2);
         } else if (var1 >= this.sel0 && var1 <= this.sel1 && var2 >= this.sel0 && var2 <= this.sel1) {
            this.drawSelectedText(var3, var4, var5, var1, var2);
         } else if (this.sel0 >= var1 && this.sel0 <= var2) {
            if (this.sel1 >= var1 && this.sel1 <= var2) {
               var4 = this.drawUnselectedText(var3, var4, var5, var1, this.sel0);
               var4 = this.drawSelectedText(var3, var4, var5, this.sel0, this.sel1);
               this.drawUnselectedText(var3, var4, var5, this.sel1, var2);
            } else {
               var4 = this.drawUnselectedText(var3, var4, var5, var1, this.sel0);
               this.drawSelectedText(var3, var4, var5, this.sel0, var2);
            }
         } else if (this.sel1 >= var1 && this.sel1 <= var2) {
            var4 = this.drawSelectedText(var3, var4, var5, var1, this.sel1);
            this.drawUnselectedText(var3, var4, var5, this.sel1, var2);
         } else {
            this.drawUnselectedText(var3, var4, var5, var1, var2);
         }
      } catch (BadLocationException var6) {
         throw new StateInvariantError("Can't render: " + var1 + "," + var2);
      }
   }

   protected int drawUnselectedText(Graphics var1, int var2, int var3, int var4, int var5) throws BadLocationException {
      var1.setColor(this.unselected);
      Document var6 = ((View)this).getDocument();
      var6.getText(var4, var5 - var4, this.lineBuffer);
      return Utilities.drawTabbedText(this.lineBuffer, var2, var3, var1, this, var4);
   }

   protected int drawSelectedText(Graphics var1, int var2, int var3, int var4, int var5) throws BadLocationException {
      var1.setColor(this.selected);
      Document var6 = ((View)this).getDocument();
      var6.getText(var4, var5 - var4, this.lineBuffer);
      return Utilities.drawTabbedText(this.lineBuffer, var2, var3, var1, this, var4);
   }

   protected final Segment getLineBuffer() {
      return this.lineBuffer;
   }

   protected void loadChildren(ViewFactory var1) {
      Element var2 = ((View)this).getElement();
      int var3 = var2.getElementCount();
      if (var3 > 0) {
         View[] var4 = new View[var3];

         for(int var5 = 0; var5 < var3; ++var5) {
            var4[var5] = new WrappedLine(this, var2.getElement(var5));
         }

         ((BoxView)this).replace(0, 0, var4);
      }

   }

   void updateChildren(DocumentEvent var1, Shape var2) {
      Element var3 = ((View)this).getElement();
      DocumentEvent.ElementChange var4 = var1.getChange(var3);
      if (var4 != null) {
         Element[] var5 = var4.getChildrenRemoved();
         Element[] var6 = var4.getChildrenAdded();
         View[] var7 = new View[var6.length];

         for(int var8 = 0; var8 < var6.length; ++var8) {
            var7[var8] = new WrappedLine(this, var6[var8]);
         }

         ((BoxView)this).replace(var4.getIndex(), var5.length, var7);
         if (var2 != null) {
            ((BoxView)this).preferenceChanged((View)null, true, true);
            ((View)this).getContainer().repaint();
         }
      }

      this.updateMetrics();
   }

   final void updateMetrics() {
      Container var1 = ((View)this).getContainer();
      Font var2 = ((Component)var1).getFont();
      this.metrics = ((Component)var1).getFontMetrics(var2);
      this.tabSize = this.getTabSize() * this.metrics.charWidth('m');
   }

   public float nextTabStop(float var1, int var2) {
      int var3 = (int)var1 / this.tabSize;
      return (float)((var3 + 1) * this.tabSize);
   }

   public void paint(Graphics var1, Shape var2) {
      Rectangle var3 = var2.getBounds();
      if (var3.width != this.layoutWidth) {
         this.layoutWidth = var3.width;
         ((BoxView)this).preferenceChanged((View)null, true, true);
      }

      JTextComponent var4 = (JTextComponent)((View)this).getContainer();
      this.sel0 = var4.getSelectionStart();
      this.sel1 = var4.getSelectionEnd();
      this.unselected = ((Component)var4).isEnabled() ? ((Component)var4).getForeground() : var4.getDisabledTextColor();
      Caret var5 = var4.getCaret();
      this.selected = var5.isSelectionVisible() ? var4.getSelectedTextColor() : this.unselected;
      this.updateMetrics();
      var1.setFont(((Component)var4).getFont());
      super.paint(var1, var2);
   }

   public void setSize(float var1, float var2) {
      this.updateMetrics();
      super.setSize(var1, var2);
   }

   public float getPreferredSpan(int var1) {
      this.updateMetrics();
      return super.getPreferredSpan(var1);
   }

   public void insertUpdate(DocumentEvent var1, Shape var2, ViewFactory var3) {
      this.updateChildren(var1, var2);
      Rectangle var4 = var2 != null && ((BoxView)this).isAllocationValid() ? ((CompositeView)this).getInsideAllocation(var2) : null;
      int var5 = var1.getOffset();
      View var6 = ((CompositeView)this).getViewAtPosition(var5, var4);
      if (var6 != null) {
         var6.insertUpdate(var1, var4, var3);
      }

   }

   public void removeUpdate(DocumentEvent var1, Shape var2, ViewFactory var3) {
      this.updateChildren(var1, var2);
      Rectangle var4 = var2 != null && ((BoxView)this).isAllocationValid() ? ((CompositeView)this).getInsideAllocation(var2) : null;
      int var5 = var1.getOffset();
      View var6 = ((CompositeView)this).getViewAtPosition(var5, var4);
      if (var6 != null) {
         var6.removeUpdate(var1, var4, var3);
      }

   }

   public void changedUpdate(DocumentEvent var1, Shape var2, ViewFactory var3) {
      this.updateChildren(var1, var2);
   }
}