[Gzz-commits] fenfire/org/fenfire/view TextNodeView.java

[Asko Soukka]

CVSROOT:        /cvsroot/fenfire
Module name:    fenfire
Branch:         
Changes by:     Asko Soukka <address@hidden>    03/08/13 18:58:10

Modified files:
        org/fenfire/view: TextNodeView.java 

Log message:
        A couple of methods for querying the cursor positiong.

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/fenfire/fenfire/org/fenfire/view/TextNodeView.java.diff?tr1=1.11&tr2=1.12&r1=text&r2=text

Patches:
Index: fenfire/org/fenfire/view/TextNodeView.java
diff -u fenfire/org/fenfire/view/TextNodeView.java:1.11 
fenfire/org/fenfire/view/TextNodeView.java:1.12
--- fenfire/org/fenfire/view/TextNodeView.java:1.11     Wed Jul 30 11:04:21 2003
+++ fenfire/org/fenfire/view/TextNodeView.java  Wed Aug 13 18:58:10 2003
@@ -39,7 +39,7 @@
  */
 public class TextNodeView extends org.fenfire.view.lava.TextHandler 
        implements NodeFunction {
-public static final String rcsid = "$Id: TextNodeView.java,v 1.11 2003/07/30 
15:04:21 mudyc Exp $";
+public static final String rcsid = "$Id: TextNodeView.java,v 1.12 2003/08/13 
22:58:10 humppake Exp $";
     public static boolean dbg = false;
     private static void pa(String s) { System.out.println("TextNodeView::"+s); 
}
 
@@ -64,6 +64,73 @@
     public void setContext(org.fenfire.view.lava.TextHandler.Context context) 
     { this.context = context; }
 
+    /** Get position of the first character placed
+     * after given coordinates.
+     */
+    public int getPos(ConstGraph g, Object node, float x, float y) {
+       Enfilade1D enf = (Enfilade1D)nodeContent.f(g, node);
+       final Object objNode = node;
+       String s = enf.makeString();
+       if (s.length() == 0) return 0;
+
+       HChain ch = getChain(s);
+       final HBroken br = breaker.breakLines(ch, width, scale);
+
+       int pos = 0;
+       int line = 0;
+       if (y < 0) return 0;
+       while (line < br.getLineCount()){
+           if (y >= br.getLineOffset(line)) line++;
+           else break;
+       }
+
+       float xoffs = 0;
+       for (int i=0; i<ch.length(); i++) {
+           int newLine = br.getLine(pos, null);
+           if (newLine < line) pos += ch.getBox(i).getLength();
+           else if (newLine == line) {
+               if (xoffs + ch.getBox(i).getWidth(scale) < x) {
+                   pos += ch.getBox(i).getLength();
+                   xoffs += ch.getBox(i).getWidth(scale);
+               } else {
+                   for (int j=0; j<ch.getBox(i).getLength(); j++)
+                       if (xoffs + ch.getBox(i).getX(j, scale) < x) pos++;
+                       else break;
+                   break;
+               }
+           } else break;
+       }
+       while (br.getLine(pos, null) > line) pos--;
+       return pos;
+    }
+
+    /** Get coordinates before the given character.
+     */
+    public void getXY(ConstGraph g, Object node, int pos, float[] xy) {
+       Enfilade1D enf = (Enfilade1D)nodeContent.f(g, node);
+       final Object objNode = node;
+       String s = enf.makeString();
+       if (s.length() == 0) {
+           if (xy != null && xy.length >= 2) {
+               xy[0] = 0;
+               xy[1] = style.getHeight(scale) + style.getAscent(scale);
+           }
+           return;
+       }
+
+       HChain ch = getChain(s);
+       final HBroken br = breaker.breakLines(ch, width, scale);
+
+       float xoffs[] = new float[1];
+       int line = br.getLine(pos, xoffs);
+       
+       if (xy != null && xy.length >= 2) {
+           // XXX the x offs doesn't seem to be exact, when there is a lot of 
spaces
+           xy[0] = xoffs[0];
+           xy[1] = br.getLineOffset(line);
+       }
+    }
+
     public Object f(ConstGraph g, Object node) {
         if (hasContext) {
             if (context == null) throw new Error("No context set");
@@ -87,10 +154,13 @@
        final float height = br.getHeight();
 
        final float width;
-       if(br.getLineCount() > 1)
-           width = this.width;
-       else
-           width = br.getLineWidth(0);
+       if(br.getLineCount() > 1) { // Let's get the longest line
+           float maxWidth = br.getLineWidth(0);
+           for (int i=1; i<br.getLineCount(); i++)
+               if (br.getLineWidth(i) > maxWidth)
+                   maxWidth = br.getLineWidth(i);
+           width = maxWidth;
+       } else width = br.getLineWidth(0);
 
        //final TextVob vob = new TextVob(style, s, false);
        //final float width = style.getWidth(s, scale);
@@ -111,7 +181,7 @@
     }
 
 
-    protected HChain getChain(String s) {
+    protected  HChain getChain(String s) {
        HChain ch = new LinebreakableChain();
 
        int pos = 0;