Cre@te Online 2000 December/Cre@teOnline CD05.iso/MacSoft/XML Instance.sea/XML Instance/Required/plugins/HTMLWindow.jar/horst/EditableHTMLDocument.class

Java Class File | 2000-03-18 | 4.9 KB | 174 lines

package horst;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.Vector;

public class EditableHTMLDocument extends HTMLDocument {
   public EditableHTMLDocument(HTMLPane renderer) {
      super(renderer);
   }

   void findSelectedElements(Element e, Vector selectedElements, int p0, int p1) {
      if (e.getType() == 9 && inRange(e, p0, p1)) {
         selectedElements.addElement(e);
      }

      int nCount = e.getElementCount();

      for(int i = 0; i < nCount; ++i) {
         this.findSelectedElements(e.getElementAt(i), selectedElements, p0, p1);
      }

   }

   public Vector getSelectedElements() {
      Vector v = new Vector();
      if (((HTMLDocument)this).isTextSelected()) {
         this.findSelectedElements(super.m_rootElement, v, super.m_selectedP0, super.m_selectedP1);
      }

      return v;
   }

   Element getTextAttributeElement(int type) {
      switch (type) {
         case 38:
         case 40:
         case 41:
         case 42:
         case 46:
         case 48:
         case 52:
         case 55:
         case 56:
         case 57:
         case 58:
         case 59:
         case 60:
         case 68:
         case 72:
         case 73:
         case 74:
            return new Element(type);
         default:
            return null;
      }
   }

   static boolean inRange(Element e, int p0, int p1) {
      return e.m_p0 <= p0 && e.m_p1 >= p0 || e.m_p0 >= p0 && e.m_p0 <= p1 || e.m_p0 >= p0 && e.m_p1 <= p1;
   }

   static boolean isTotallyInRange(Element e, int p0, int p1) {
      return e.m_p0 >= p0 && e.m_p1 <= p1;
   }

   public void setSelectedTextProperties(int[] atts) {
      ((HTMLDocument)this).printTree(super.m_rootElement, 0);
      HTMLDocument.closeLog();
      Vector selectedElements = new Vector();
      Vector v = this.getSelectedElements();

      for(int i = v.size() - 1; i >= 0; --i) {
         Element e = (Element)v.elementAt(i);
         new String(e.getCharData());
         if (isTotallyInRange(e, super.m_selectedP0, super.m_selectedP1)) {
            selectedElements.addElement(e);
         } else {
            ElementSplit[] splits = splitElement(e, super.m_selectedP0, super.m_selectedP1);
            if (e.m_parent != null) {
               Element[] newElems = new Element[splits.length];

               for(int h = 0; h < splits.length; ++h) {
                  newElems[h] = splits[h].m_elem;
               }

               e.m_parent.replaceChildElement(e, newElems);

               for(int h = 0; h < splits.length; ++h) {
                  if (splits[h].m_bSelected) {
                     selectedElements.addElement(splits[h].m_elem);
                  }
               }
            }
         }
      }

      boolean bRebuildViews = false;

      for(int i = 0; i < atts.length; ++i) {
         for(int j = 0; j < selectedElements.size(); ++j) {
            Element attElement = this.getTextAttributeElement(atts[i]);
            if (attElement != null) {
               bRebuildViews = true;
               Element selectedElem = (Element)selectedElements.elementAt(j);
               selectedElem.m_parent.replaceChildElement(selectedElem, attElement);
               new String(selectedElem.getCharData());
               attElement.addChild(selectedElem);
               attElement.m_doc = selectedElem.m_doc;
            }

            ((HTMLDocument)this).printTree(super.m_rootElement, 0);
            HTMLDocument.closeLog();
         }
      }

      if (bRebuildViews) {
         try {
            File f = new File("c:\\browser\\out.html");
            FileOutputStream os = new FileOutputStream(f);
            PrintWriter pw = new PrintWriter(os);
            ((HTMLDocument)this).writeToStream(pw);
            pw.flush();
            pw.close();
         } catch (Exception ex) {
            System.out.println("Exception: " + ex);
         }
      }

   }

   static ElementSplit[] splitElement(Element e, int p0, int p1) {
      if (p0 > p1) {
         int temp = p0;
         p0 = p1;
         p1 = temp;
      }

      new String(e.getCharData());
      ElementSplit[] splits = new ElementSplit[0];
      if (e.m_p0 < p0 && e.m_p1 > p1) {
         splits = new ElementSplit[3];
         Element newElem = new Element(e);
         newElem.setTextPointers(e.m_p0, p0 - 1);
         splits[0] = new ElementSplit(newElem, false);
         newElem = new Element(e);
         newElem.setTextPointers(p0, p1);
         splits[1] = new ElementSplit(newElem, true);
         newElem = new Element(e);
         newElem.setTextPointers(p1 + 1, e.m_p1);
         splits[2] = new ElementSplit(newElem, false);
      } else if (e.m_p0 < p0 && e.m_p1 > p0) {
         splits = new ElementSplit[2];
         Element newElem = new Element(e);
         newElem.setTextPointers(e.m_p0, p0 - 1);
         splits[0] = new ElementSplit(newElem, false);
         newElem = new Element(e);
         newElem.setTextPointers(p0, e.m_p1);
         splits[1] = new ElementSplit(newElem, true);
      } else if (e.m_p0 > p0 && e.m_p0 < p1 && e.m_p1 > p1) {
         splits = new ElementSplit[2];
         Element newElem = new Element(e);
         newElem.setTextPointers(e.m_p0, p1);
         splits[0] = new ElementSplit(newElem, true);
         newElem = new Element(e);
         newElem.setTextPointers(p1 + 1, e.m_p1);
         splits[1] = new ElementSplit(newElem, false);
      }

      return splits;
   }
}