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Java/media/ZZDefaultText.java

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+/*   
+ZZDefaultText.java
+ *    
+ *    Copyright (c) 2000, Ted Nelson and Tuomas Lukka
+ *
+ *    You may use and distribute under the terms of either the GNU Lesser
+ *    General Public License, either version 2 of the license or,
+ *    at your choice, any later version. Alternatively, you may use and
+ *    distribute under the terms of the XPL.
+ *
+ *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
+ *    the licenses.
+ *
+ *    This software is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the README
+ *    file for more details.
+ *
+ */
+/*
+ * Written by Tuomas Lukka
+ */
+package org.gzigzag;
+import java.awt.*;
+
+/** A simple implementation of ZZText.
+ */
+
+public class ZZDefaultText extends ZZText {
+String rcsid = "$Id: ZZDefaultText.java,v 1.2 2000/10/19 17:04:26 tjl Exp $";
+
+    public String getText(ZZCell c) {
+	return c.getText();
+    }
+
+    public void setText(ZZCell c, String s) {
+	c.disconnect("d.reftext", 1);
+	// XXX Delete all cells there too?
+	c.setText(s);
+    }
+
+    public boolean isRef(ZZCell c) {
+	return c.s("d.reftext") != null;
+    }
+
+    public void delete(ZZCell c, int start) {
+	// XXX faster
+	delete(c, start, getText(c).length());
+    }
+
+    public void delete(ZZCell c, int start, int end) {
+	if(isRef(c)) {
+	} else {
+	}
+    }
+
+    public void insertNewRef(ZZCell c, String txt, int offs) {
+	ensureRef(c);
+    }
+
+    public void insertRef(ZZCell c, Span sp, int offs) {
+	ensureRef(c);
+    }
+
+    public Span[] getSpans(ZZCell c) {
+	LoopDetector ld = new LoopDetector();
+	ZZCell v = c.s("d.reftext");
+	return null;
+    }
+    public Span[] getSpans(ZZCell c, int start) {
+	LoopDetector ld = new LoopDetector();
+	ZZCell v = c.s("d.reftext");
+	return null;
+    }
+    public Span[] getSpans(ZZCell c, int start, int end) {
+	LoopDetector ld = new LoopDetector();
+	ZZCell v = c.s("d.reftext");
+	return null;
+    }
+    public void setSpans(ZZCell c, Span[] spans) {
+    }
+    
+
+    Span makeSpan(ZZCell c, String s) {
+	StringScroll sc = c.getSpace().getStringScroll();
+	long offs = sc.append(s);
+	return Span.create(Address.scrollOffs(sc, offs),
+		           Address.scrollOffs(sc, offs+s.length()-1));
+    }
+
+    void ensureRef(ZZCell c) {
+	if(c.s("d.reftext") == null) {
+	    Span sp = makeSpan(c, getText(c));
+	    ZZCell n = c.N("d.reftext", 1);
+	    n.setSpan(sp);
+	}
+    }
+
+}
+