1 files changed, 161 insertions, 0 deletions
diff --git a/examples/ffcopyglyphs.py b/examples/ffcopyglyphs.py
new file mode 100644
index 0000000..3fcfe76
--- /dev/null
+++ b/examples/ffcopyglyphs.py
@@ -0,0 +1,161 @@
+#!/usr/bin/env python3
+'''FontForge: Copy glyphs from one font to another, without using ffbuilder'''
+__url__ = 'https://github.com/silnrsi/pysilfont'
+__copyright__ = 'Copyright (c) 2015-2019 SIL International (https://www.sil.org)'
+__license__ = 'Released under the MIT License (https://opensource.org/licenses/MIT)'
+__author__ = 'Martin Hosken'
+
+from silfont.core import execute
+import psMat
+import io
+
+
+''' This  will need updating, since FontForge is no longer supported as a tool by execute() So:
+- ifont and ofont will need to be changed to have type 'filename'
+- ifont will then need to be opened using fontforge.open
+- The font will need to be saved with font.save
+- execute will need to be called with the tool set to None instead of "FF"
+'''
+
+
+argspec = [
+    ('ifont',{'help': 'Input font file'}, {'type': 'infont'}),
+    ('ofont',{'help': 'Output font file','nargs': '?' }, {'type': 'outfont', 'def': 'new'}),
+    ('-i','--input',{'help': 'Font to get glyphs from', 'required' : True}, {'type': 'infont'}),
+    ('-r','--range',{'help': 'StartUnicode..EndUnicode no spaces, e.g. 20..7E', 'action' : 'append'}, {}),
+    ('--rangefile',{'help': 'File with USVs e.g. 20 or a range e.g. 20..7E or both', 'action' : 'append'}, {}),
+    ('-n','--name',{'help': 'Include glyph named name', 'action' : 'append'}, {}),
+    ('--namefile',{'help': 'File with glyph names', 'action' : 'append'}, {}),
+    ('-a','--anchors',{'help' : 'Copy across anchor points', 'action' : 'store_true'}, {}),
+    ('-f','--force',{'help' : 'Overwrite existing glyphs in the font', 'action' : 'store_true'}, {}),
+    ('-s','--scale',{'type' : float, 'help' : 'Scale glyphs by this factor'}, {})
+]
+
+def copyglyph(font, infont, g, u, args) :
+    extras = set()
+    if args.scale is None :
+        scale = psMat.identity()
+    else :
+        scale = psMat.scale(args.scale)
+    o = font.findEncodingSlot(u)
+    if o == -1 :
+        glyph = font.createChar(u, g.glyphname)
+    else :
+        glyph = font[o]
+    if len(g.references) == 0 :
+        font.selection.select(glyph)
+        pen = glyph.glyphPen()
+        g.draw(pen)
+        glyph.transform(scale)
+    else :
+        for r in g.references :
+            t = psMat.compose(r[1], scale)
+            newt = psMat.compose(psMat.identity(), psMat.translate(t[4], t[5]))
+            glyph.addReference(r[0], newt)
+            extras.add(r[0])
+    glyph.width = g.width * scale[0]
+    if args.anchors :
+        for a in g.anchorPoints :
+            try :
+                l = font.getSubtableOfAnchor(a[1])
+            except EnvironmentError :
+                font.addAnchorClass("", a[0]*scale[0], a[1]*scale[3])
+        glyph.anchorPoints = g.anchorPoints
+    return list(extras)
+
+def doit(args) :
+    font = args.ifont
+    infont = args.input
+    font.encoding = "Original"
+    infont.encoding = "Original"    # compact the font so findEncodingSlot will work
+    infont.layers["Fore"].is_quadratic = font.layers["Fore"].is_quadratic
+
+    # list of glyphs to copy
+    glist = list()
+
+    # glyphs specified on the command line
+    for n in args.name or [] :
+        glist.append(n)
+
+    # glyphs specified in a file
+    for filename in args.namefile or [] :
+        namefile = io.open(filename, 'r')
+        for line in namefile :
+            # ignore comments
+            line = line.partition('#')[0]
+            line = line.strip()
+
+            # ignore blank lines
+            if (line == ''):
+                continue
+
+            glist.append(line)
+
+    # copy glyphs by name
+    reportErrors = True
+    while len(glist) :
+        tglist = glist[:]
+        glist = []
+        for n in tglist:
+            if n in font and not args.force :
+                if reportErrors :
+                    print("Glyph {} already present. Skipping".format(n))
+                continue
+            if n not in infont :
+                print("Can't find glyph {}".format(n))
+                continue
+            g = infont[n]
+            glist.extend(copyglyph(font, infont, g, -1, args))
+        reportErrors = False
+
+    # list of characters to copy
+    ulist = list()
+
+    # characters specified on the command line
+    for r in args.range or [] :
+        (rstart, rend) = [int(x, 16) for x in r.split('..')]
+        for u in range(rstart, rend + 1) :
+            ulist.append(u)
+
+    # characters specified in a file
+    for filename in args.rangefile or [] :
+        rangefile = io.open(filename, 'r')
+        for line in rangefile :
+            # ignore comments
+            line = line.partition('#')[0]
+            line = line.strip()
+
+            # ignore blank lines
+            if (line == ''):
+                continue
+
+            # obtain USVs
+            try:
+                (rstart, rend) = line.split('..')
+            except ValueError:
+                rstart = line
+                rend = line
+
+            rstart = int(rstart, 16)
+            rend = int(rend, 16)
+
+            for u in range(rstart, rend + 1):
+                ulist.append(u)
+
+    # copy the characters from the generated list
+    for u in ulist:
+        o = font.findEncodingSlot(u)
+        if o != -1 and not args.force :
+            print("Glyph for {:x} already present. Skipping".format(u))
+            continue
+        e = infont.findEncodingSlot(u)
+        if e == -1 :
+            print("Can't find glyph for {:04x}".format(u))
+            continue
+        g = infont[e]
+        copyglyph(font, infont, g, u, args)
+
+    return font
+
+def cmd() : execute("FF",doit,argspec) 
+if __name__ == "__main__": cmd()