S283 Planetary Science &n…he Search for Life DVD 2/DVD-ROM.iso/install/jre1_3/lib/rt.jar/javax/swing/text/TextLayoutStrategy.class

Java Class File | 1979-12-31 | 5.0 KB | 190 lines

package javax.swing.text;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import javax.swing.event.DocumentEvent;
import javax.swing.text.Position.Bias;

class TextLayoutStrategy extends FlowView.FlowStrategy {
   private LineBreakMeasurer measurer;
   private AttributedSegment text = new AttributedSegment();

   public TextLayoutStrategy() {
   }

   public void insertUpdate(FlowView var1, DocumentEvent var2, Rectangle var3) {
      this.sync(var1);
      super.insertUpdate(var1, var2, var3);
   }

   public void removeUpdate(FlowView var1, DocumentEvent var2, Rectangle var3) {
      this.sync(var1);
      super.removeUpdate(var1, var2, var3);
   }

   public void changedUpdate(FlowView var1, DocumentEvent var2, Rectangle var3) {
      this.sync(var1);
      super.changedUpdate(var1, var2, var3);
   }

   public void layout(FlowView var1) {
      super.layout(var1);
   }

   protected int layoutRow(FlowView var1, int var2, int var3) {
      int var4 = super.layoutRow(var1, var2, var3);
      View var5 = ((CompositeView)var1).getView(var2);
      Document var6 = ((View)var1).getDocument();
      Object var7 = var6.getProperty("i18n");
      if (var7 != null && var7.equals(Boolean.TRUE)) {
         int var8 = var5.getViewCount();
         if (var8 > 1) {
            AbstractDocument var9 = (AbstractDocument)((View)var1).getDocument();
            Element var10 = var9.getBidiRootElement();
            byte[] var11 = new byte[var8];
            View[] var12 = new View[var8];

            for(int var13 = 0; var13 < var8; ++var13) {
               View var14 = var5.getView(var13);
               int var15 = var10.getElementIndex(var14.getStartOffset());
               Element var16 = var10.getElement(var15);
               var11[var13] = (byte)StyleConstants.getBidiLevel(var16.getAttributes());
               var12[var13] = var14;
            }

            Bidi.reorderVisually(var11, var12);
            var5.replace(0, var8, var12);
         }
      }

      return var4;
   }

   protected void adjustRow(FlowView var1, int var2, int var3, int var4) {
   }

   protected View createView(FlowView var1, int var2, int var3, int var4) {
      View var5 = ((FlowView.FlowStrategy)this).getLogicalView(var1);
      View var6 = ((CompositeView)var1).getView(var4);
      boolean var7 = var6.getViewCount() != 0;
      int var8 = var5.getViewIndex(var2, Bias.Forward);
      View var9 = var5.getView(var8);
      int var10 = this.getLimitingOffset(var9, var2, var3, var7);
      if (var10 == var2) {
         return null;
      } else {
         View var11;
         if (var2 == var9.getStartOffset() && var10 == var9.getEndOffset()) {
            var11 = var9;
         } else {
            var11 = var9.createFragment(var2, var10);
         }

         if (var11 instanceof GlyphView && this.measurer != null) {
            boolean var12 = false;
            int var13 = var11.getStartOffset();
            int var14 = var11.getEndOffset();
            if (var14 - var13 == 1) {
               Segment var15 = ((GlyphView)var11).getText(var13, var14);
               char var16 = var15.first();
               if (var16 == '\t') {
                  var12 = true;
               }
            }

            TextLayout var17 = var12 ? null : this.measurer.nextLayout((float)var3, this.text.toIteratorIndex(var10), var7);
            if (var17 != null) {
               ((GlyphView)var11).setGlyphPainter(new GlyphPainter2(var17));
            }
         }

         return var11;
      }
   }

   int getLimitingOffset(View var1, int var2, int var3, boolean var4) {
      int var5 = var1.getEndOffset();
      Document var6 = var1.getDocument();
      if (var6 instanceof AbstractDocument) {
         AbstractDocument var7 = (AbstractDocument)var6;
         Element var8 = var7.getBidiRootElement();
         if (var8.getElementCount() > 1) {
            int var9 = var8.getElementIndex(var2);
            Element var10 = var8.getElement(var9);
            var5 = Math.min(var10.getEndOffset(), var5);
         }
      }

      if (var1 instanceof GlyphView) {
         Segment var11 = ((GlyphView)var1).getText(var2, var5);
         char var13 = var11.first();
         if (var13 == '\t') {
            var5 = var2 + 1;
         } else {
            for(char var14 = var11.next(); var14 != '\uffff'; var14 = var11.next()) {
               if (var14 == '\t') {
                  var5 = var2 + var11.getIndex() - var11.getBeginIndex();
                  break;
               }
            }
         }
      }

      int var12 = this.text.toIteratorIndex(var5);
      if (this.measurer != null) {
         int var15 = this.text.toIteratorIndex(var2);
         if (this.measurer.getPosition() != var15) {
            this.measurer.setPosition(var15);
         }

         var12 = this.measurer.nextOffset((float)var3, var12, var4);
      }

      int var16 = this.text.toModelPosition(var12);
      return var16;
   }

   void sync(FlowView var1) {
      View var2 = ((FlowView.FlowStrategy)this).getLogicalView(var1);
      this.text.setView(var2);
      Graphics2D var3 = (Graphics2D)((View)var1).getContainer().getGraphics();

      FontRenderContext var4;
      try {
         if (var3 != null) {
            var4 = var3.getFontRenderContext();
         } else {
            AffineTransform var5 = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration().getDefaultTransform();
            var4 = new FontRenderContext(var5, false, false);
         }
      } finally {
         if (var3 != null) {
            ((Graphics)var3).dispose();
         }

      }

      this.measurer = new LineBreakMeasurer(this.text, var4);
      int var13 = var2.getViewCount();

      for(int var6 = 0; var6 < var13; ++var6) {
         View var7 = var2.getView(var6);
         if (var7 instanceof GlyphView) {
            int var8 = var7.getStartOffset();
            int var9 = var7.getEndOffset();
            this.measurer.setPosition(this.text.toIteratorIndex(var8));
            TextLayout var10 = this.measurer.nextLayout(Float.MAX_VALUE, this.text.toIteratorIndex(var9), false);
            ((GlyphView)var7).setGlyphPainter(new GlyphPainter2(var10));
         }
      }

      this.measurer.setPosition(this.text.getBeginIndex());
   }
}