From: handa <handa>
Date: Mon, 29 Dec 2008 14:54:02 +0000 (+0000)
Subject: (uvs_area, uvs_label): New variables.
X-Git-Tag: REL-0-9-9~20
X-Git-Url: http://git.chise.org/gitweb/?a=commitdiff_plain;h=7a97ff0e6621fea8d6d1e993e042747e438934eb;p=m17n%2Flibotf.git

(uvs_area, uvs_label): New variables.
(sub14, uvs): New variable.
(update_uvs_area): New function.
(update_seq_area): Set `glyph_id' member only when no charmap is
used.
(update_render_area): Handle a variation selector.
(UVSProc): New function.
(RenderProc): Call update_uvs_area if the font is OpenType.
(create_widgets): Create uvs_area widget if the font has variation
selector.
(main): Setup sub14. Set font in gc_set.
---

diff --git a/example/otfview.c b/example/otfview.c
index d8b8720..3700d9e 100644
--- a/example/otfview.c
+++ b/example/otfview.c
@@ -72,6 +72,9 @@ XtAppContext context;
    | | idxh[7] glyph[112]  ...    glyph[127]| |
    | |         idxl[0]     ...    idxl[15]  | |
    | +--------------------------------------+ |
+   | +---- uvs_area (box) (optional) -------+ |
+   | | uvs[?].w ...                         | |
+   | +--------------------------------------+ |
    | +--- render_area (form) ---------------+ |
    | | clear del bidi alt_subst             | |
    | | +--- raw (box) --------------------+ | |
@@ -88,6 +91,7 @@ Widget shell, frame;
 Widget command_area, quit, dump, *charmap;
 Widget navi_area, FIRST, PREV, prev, range, next, NEXT, LAST;
 Widget glyph_area, glyph[128], index_label[8];
+Widget uvs_area, uvs_label;
 Widget render_area, clear, del, bidi, alt_subst, raw, seq;
 Widget raw_label, raw_image, seq_label, seq_image;
 unsigned long foreground, background;
@@ -154,6 +158,13 @@ struct {
   int codes[64];
 } glyph_rec;
 
+OTF_EncodingSubtable14 *sub14 = NULL;
+
+struct {
+  Widget w;
+  int c;
+} uvs[256];
+
 OTF *otf;
 char *filename;
 int fontindex;
@@ -242,6 +253,27 @@ update_glyph_area ()
   XtSetValues (range, arg, 1);
 }
 
+void
+update_uvs_area (int c)
+{
+  OTF_GlyphID code[256];
+  Arg arg[1];
+  int i;
+
+  OTF_get_variation_glyphs (otf, c, code);
+
+  for (i = 0; i < 256; i++)
+    if (uvs[i].w)
+      {
+	if (code[i])
+	  XtSetArg (arg[0], XtNsensitive, True);
+	else
+	  XtSetArg (arg[0], XtNsensitive, False);
+	XtSetValues (uvs[i].w, arg, 1);
+      }
+}
+
+
 char *
 get_features (OTF_FeatureList *list, FeatureRec *rec)
 {
@@ -313,7 +345,11 @@ update_seq_area ()
   gstring.glyphs = malloc (sizeof (OTF_Glyph) * len);
   memset (gstring.glyphs, 0, sizeof (OTF_Glyph) * len);
   for (i = 0; i < len; i++)
-    gstring.glyphs[i].c = gstring.glyphs[i].glyph_id = glyph_rec.glyphs[i];
+    {
+      gstring.glyphs[i].c = glyph_rec.codes[i];
+      if (charmap_index < 0)
+	gstring.glyphs[i].glyph_id = glyph_rec.glyphs[i];
+    }
 
   XFillRectangle (display, seq_pixmap, gc, 0, 0, render_width, render_height);
   XDrawLine (display, seq_pixmap, gc_set, 0, glyph_y, render_width, glyph_y);
@@ -477,28 +513,50 @@ update_render_area ()
   XFillRectangle (display, raw_pixmap, gc, 0, 0, render_width, render_height);
   for (i = 0, x = glyph_x; i < glyph_rec.n_glyphs; i++)
     {
-      BitmapRec *bmp = bitmap + glyph_rec.glyphs[i];
-      char buf[5];
-
-      XCopyArea (display, bmp->pixmap, raw_pixmap, gc,
-		 0, 0, glyph_width, glyph_height,
-		 (glyph_width + 4) * i + 1, 1);
-      XDrawRectangle (display, raw_pixmap, gc_set,
-		      (glyph_width + 4) * i, 0,
-		      glyph_width + 1, glyph_height + 1);
-      XDrawLine (display, raw_pixmap, gc_set,
-		 (glyph_width + 4) * i + 1 + glyph_x, 1,
-		 (glyph_width + 4) * i + 1 + glyph_x, glyph_height + 1);
-      XDrawLine (display, raw_pixmap, gc_set,
-		 (glyph_width + 4) * i + 1 + glyph_x + bmp->advance, 1,
-		 (glyph_width + 4) * i + 1 + glyph_x + bmp->advance,
-		 glyph_height + 1);
-
-      sprintf (buf, "%04X", glyph_rec.codes[i]);
-      XDrawString (display, raw_pixmap, gc_inv, 
-		   (glyph_width + 1) * i + 1
-		   + (glyph_width - XTextWidth (font, buf, 4)) / 2,
-		   glyph_height + 2 + FONT_HEIGHT, buf, 4);
+      if (glyph_rec.glyphs[i] >= 0)
+	{
+	  BitmapRec *bmp = bitmap + glyph_rec.glyphs[i];
+	  char buf[5];
+
+	  XCopyArea (display, bmp->pixmap, raw_pixmap, gc,
+		     0, 0, glyph_width, glyph_height,
+		     (glyph_width + 4) * i + 1, 1);
+	  XDrawRectangle (display, raw_pixmap, gc_set,
+			  (glyph_width + 4) * i, 0,
+			  glyph_width + 1, glyph_height + 1);
+	  XDrawLine (display, raw_pixmap, gc_set,
+		     (glyph_width + 4) * i + 1 + glyph_x, 1,
+		     (glyph_width + 4) * i + 1 + glyph_x, glyph_height + 1);
+	  XDrawLine (display, raw_pixmap, gc_set,
+		     (glyph_width + 4) * i + 1 + glyph_x + bmp->advance, 1,
+		     (glyph_width + 4) * i + 1 + glyph_x + bmp->advance,
+		     glyph_height + 1);
+
+	  sprintf (buf, "%04X", glyph_rec.codes[i]);
+	  XDrawString (display, raw_pixmap, gc_inv, 
+		       (glyph_width + 4) * i + 1
+		       + (glyph_width - XTextWidth (font, buf, 4)) / 2,
+		       glyph_height + 2 + FONT_HEIGHT, buf, 4);
+	}
+      else
+	{
+	  /* Variation Selector */
+	  int idx = - glyph_rec.glyphs[i];
+	  char buf[4];
+
+	  sprintf (buf, "%03d", idx);
+	  XDrawRectangle (display, raw_pixmap, gc_set,
+			  (glyph_width + 4) * i, 0,
+			  glyph_width + 1, glyph_height + 1);
+	  XDrawString (display, raw_pixmap, gc_set,
+		       (glyph_width + 4) * i + 1
+		       + (glyph_width - XTextWidth (font, "VS", 2)) / 2,
+		       1 + glyph_height / 2, "VS", 2);
+	  XDrawString (display, raw_pixmap, gc_set,
+		       (glyph_width + 4) * i + 1
+		       + (glyph_width - XTextWidth (font, buf, 3)) / 2,
+		       1 + glyph_height / 2 + FONT_ASCENT, buf, 3);
+	}
     }
   XtSetArg (arg[0], XtNbitmap, raw_pixmap);
   XtSetValues (raw_image, arg, 1);
@@ -679,6 +737,33 @@ CharmapProc (Widget w, XtPointer client_data, XtPointer call_data)
 }
 
 void
+UVSProc (Widget w, XtPointer client_data, XtPointer call_data)
+{
+  unsigned idx = (unsigned) client_data;
+  int selector = uvs[idx].c;
+  OTF_VariationSelectorRecord *record;
+  int i;
+
+  if (glyph_rec.n_glyphs >= 64)
+    return;
+  for (i = 0; i < sub14->nRecords; i++)
+    {
+      record = sub14->Records + i;
+      if (record->varSelector == selector)
+	break;
+    }
+  if (i < sub14->nRecords)
+    {
+      if (glyph_rec.n_glyphs > 0
+	  && glyph_rec.glyphs[glyph_rec.n_glyphs - 1] < 0)
+	glyph_rec.n_glyphs--;
+      glyph_rec.codes[glyph_rec.n_glyphs] = selector;
+      glyph_rec.glyphs[glyph_rec.n_glyphs++] = - idx - 1;
+      update_render_area ();
+    }
+}
+
+void
 RenderProc (Widget w, XtPointer client_data, XtPointer call_data)
 {
   if ((int) client_data < 0)
@@ -702,6 +787,8 @@ RenderProc (Widget w, XtPointer client_data, XtPointer call_data)
 	{
 	  glyph_rec.codes[glyph_rec.n_glyphs] = glyph_index + (int) client_data;
 	  glyph_rec.glyphs[glyph_rec.n_glyphs++] = index;
+	  if (otf)
+	    update_uvs_area (glyph_index + (int) client_data);
 	  update_render_area ();
 	}
     }
@@ -1142,7 +1229,41 @@ create_widgets ()
   XtSetArg (arg[6], XtNdefaultDistance, 0);
   glyph_area = XtCreateManagedWidget ("glyph-area", formWidgetClass,
 				      frame, arg, 7);
+
   XtSetArg (arg[5], XtNfromVert, glyph_area);
+  if (sub14)
+    {
+      Arg arg2[3];
+
+      XtSetArg (arg[6], XtNorientation, XtorientHorizontal);
+      uvs_area = XtCreateManagedWidget ("uvs-area", boxWidgetClass,
+					frame, arg, 7);
+      XtSetArg (arg2[0], XtNborderWidth, 0);
+      XtSetArg (arg2[1], XtNlabel, "Variation Selector: ");
+      uvs_label = XtCreateManagedWidget ("uvs-label", labelWidgetClass,
+					 uvs_area, arg2, 2);
+      XtSetArg (arg2[0], XtNborderWidth, 1);
+      for (i = 0; i < sub14->nRecords; i++)
+	{
+	  OTF_VariationSelectorRecord *record = sub14->Records + i;;
+	  unsigned selector = record->varSelector;
+	  unsigned idx;
+	  char lbl[4];
+	  
+	  idx = (selector <= 0xFE0F ? selector - 0xFE00
+		 : selector - 0xE0100 + 16);
+	  if (uvs[idx].c)
+	    continue;
+	  uvs[idx].c = selector;
+	  sprintf (lbl, "%03d", idx + 1);
+	  XtSetArg (arg2[1], XtNlabel, lbl);
+	  XtSetArg (arg2[2], XtNsensitive, False);
+	  uvs[idx].w = XtCreateManagedWidget ("lbl", commandWidgetClass,
+						   uvs_area, arg2, 3);
+	  XtAddCallback (uvs[idx].w, XtNcallback, UVSProc, (XtPointer) idx);
+	}
+      XtSetArg (arg[5], XtNfromVert, uvs_area);
+    }
   render_area = XtCreateManagedWidget ("render-area", formWidgetClass,
 				       frame, arg, 6);
 
@@ -1443,6 +1564,12 @@ main (int argc, char **argv)
 	  || (OTF_check_table (otf, "GSUB") < 0
 	      && OTF_check_table (otf, "GPOS") < 0))
 	otf = NULL;
+      for (i = 0; i < otf->cmap->numTables; i++)
+	if (otf->cmap->EncodingRecord[i].subtable.format == 14)
+	  {
+	    sub14 = otf->cmap->EncodingRecord[i].subtable.f.f14;
+	    break;
+	  }
     }
 
   {
@@ -1481,9 +1608,11 @@ main (int argc, char **argv)
     XGCValues values;
 
     gc = XCreateGC (display, none_pixmap, (unsigned long) 0, NULL);
+    XSetFont (display, gc, font->fid);
     values.function = GXset;
     values.line_width = 1;
     gc_set = XCreateGC (display, none_pixmap, valuemask, &values);
+    XSetFont (display, gc_set, font->fid);
     values.function = GXor;
     gc_or = XCreateGC (display, none_pixmap, valuemask, &values);
     values.function = GXcopyInverted;