added glyph pairing to align zone detector

[swftools.git] / lib / devices / swf.c

diff --git a/lib/devices/swf.c b/lib/devices/swf.c
index 3277938..a3f57e9 100644 (file)
--- a/lib/devices/swf.c
+++ b/lib/devices/swf.c
@@ -623,6 +623,7 @@ static void chararray_writetotag(chararray_t*_chardata, TAG*tag)
     int lastx;
     int lasty;
     int lastsize;
+    int lastchar;
     int charids[128];
     int charadvance[128];
     int charstorepos;
@@ -646,6 +647,7 @@ static void chararray_writetotag(chararray_t*_chardata, TAG*tag)
         lastx = CHARMIDX;
         lasty = CHARMIDY;
         lastsize = -1;
+       lastchar = -1;
 
         if(pass==1)
         {
@@ -670,9 +672,9 @@ static void chararray_writetotag(chararray_t*_chardata, TAG*tag)
 
                charatposition_t*chr = &chardata->chr[t];
 
-               if(lastfont != chardata->chr[t].font || 
-                       lastx!=chardata->chr[t].x ||
-                       lasty!=chardata->chr[t].y ||
+               if(lastfont != chr->font || 
+                       lastx!=chr->x ||
+                       lasty!=chr->y ||
                        !colorcompare(&color, &chardata->chr[t].color) ||
                        charstorepos==127 ||
                        lastsize != chardata->chr[t].size ||
@@ -736,6 +738,12 @@ static void chararray_writetotag(chararray_t*_chardata, TAG*tag)
                    lastx = chr->x;
                    lasty = chr->y;
                    lastsize = chr->size;
+               } else {
+                   assert(lastchar>=0);
+                   if(pass==1 && lastchar!=chr->charid) {
+                       swf_FontUsePair(chr->font, lastchar, chr->charid);
+                       swf_FontUsePair(chr->font, chr->charid, lastchar);
+                   }
                }
 
                if(islast)
@@ -745,7 +753,7 @@ static void chararray_writetotag(chararray_t*_chardata, TAG*tag)
                if(t<chardata->pos-1) nextx = chardata->chr[t+1].x;
                if(t==chardata->pos-1 && chardata->next) nextx = chardata->next->chr[0].x;
                int dx = nextx-chr->x;
-
+               
                int advance;
                if(dx>=0 && (dx<(1<<(advancebits-1)) || pass==0)) {
                   advance = dx;
@@ -754,8 +762,10 @@ static void chararray_writetotag(chararray_t*_chardata, TAG*tag)
                   advance = 0;
                   lastx=chr->x;
                }
+
                charids[charstorepos] = chr->charid;
                charadvance[charstorepos] = advance;
+               lastchar = chr->charid;
                charstorepos ++;
            }
            chardata = chardata->next;