de.po

[lyx.git] / development / tools / generate_symbols_images.py

diff --git a/development/tools/generate_symbols_images.py b/development/tools/generate_symbols_images.py
index 69261ad603004664d71acbf4217a2a459203f1ef..91d685c0a3f72c99d2eac7d6c92871476d5d4365 100755 (executable)
--- a/development/tools/generate_symbols_images.py
+++ b/development/tools/generate_symbols_images.py
@@ -6,13 +6,15 @@
 # Licence details can be found in the file COPYING.
 
 # author Georg Baum
+# author Juergen Spitzmueller (adaptation for SVG)
 
 # Full author contact details are available in file CREDITS
 
-# This script generates a toolbar image for each missing math symbol
-# It needs the template document generate_symbols_images.lyx, which must
-# contain the placeholder formula '$a$' for generating the png image via
-# preview.sty and dvipng.
+# This script generates a toolbar image for each missing math symbol.
+# It needs the template document generate_symbols_images.lyx for generating
+# the png image via preview.sty and dvipng, or the template document
+# generate_symbols_svg.lyx for generating the SVG image via dvisvgm.
+# Either document must contain the placeholder formula '$a$'.
 # The created images are not always optimal, therefore the existing manually
 # created images should never be replaced by automatically created ones.
 
@@ -23,7 +25,7 @@ import Image
 import io
 
 def usage(prog_name):
-    return ("Usage: %s lyxexe outputpath\n" % prog_name)
+    return ("Usage: %s png|svg lyxexe outputpath\n" % prog_name)
 
 
 def error(message):
@@ -104,7 +106,7 @@ def getmakefileentries(filename):
     return items
 
 
-def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolbaritems, makefileentries):
+def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolbaritems, makefileentries, usepng):
     """ Create the image file for symbol name in path. """
 
     if name in replacements.keys():
@@ -116,10 +118,13 @@ def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolb
         skipchars = ['|', '/', '\\', '*', '!', '?', ':', ';', '^', '<', '>']
         for i in skipchars:
             if name.find(i) >= 0:
-                print( 'Skipping ' + name)
+                print('Skipping ' + name)
                 return
         filename = name
-    pngname = os.path.join(path, filename + '.png')
+    if usepng:
+        imgname = os.path.join(path, filename + '.png')
+    else:
+        imgname = os.path.join(path, filename + '.svgz')
     if name in toolbaritems:
         if filename in makefileentries:
             suffix = ' (found in toolbar and makefile)'
@@ -130,7 +135,7 @@ def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolb
             suffix = ' (found only in makefile)'
         else:
             suffix = ' (not found)'
-    if os.path.exists(pngname):
+    if os.path.exists(imgname):
         print('Skipping ' + name + suffix)
         return
     print('Generating ' + name + suffix)
@@ -150,13 +155,21 @@ def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolb
     # The magnifaction factor is calculated such that we get an image of
     # height 18 px for most symbols and document font size 11. Then we can
     # add a small border to get the standard math image height of 20 px.
-    cmd = "dvipng %s.dvi -bg Transparent -D 115 -o %s" % (lyxname, pngname)
+    if usepng:
+        cmd = "dvipng %s.dvi -bg Transparent -D 115 -o %s" % (lyxname, imgname)
+    else:
+        cmd = "dvisvgm -z --no-fonts --exact --output=%s%s%%f %s.dvi" % (path, os.path.sep, lyxname)
     proc = subprocess.Popen(cmd, shell=True)
     proc.wait()
     if proc.returncode != 0:
-        print('Error in PNG creation for ' + name)
+        if png:
+            print('Error in PNG creation for ' + name)
+        else:
+            print('Error in SVG creation for ' + name)
         return
-    image = Image.open(pngname)
+    if not usepng:
+        return
+    image = Image.open(imgname)
     (width, height) = image.size
     if width < 20 and height < 20:
         if width == 19 and height == 19:
@@ -172,29 +185,36 @@ def createimage(name, path, template, lyxexe, tempdir, math, replacements, toolb
             padded = Image.new('RGBA', (width+2, height+2), (0, 0, 0, 0))
             padded.paste(image, (1, 1))
         padded.convert(image.mode)
-        padded.save(pngname, "PNG")
+        padded.save(imgname, "PNG")
 
 
 def main(argv):
 
-    if len(argv) == 3:
+    if len(argv) == 4:
         (base, ext) = os.path.splitext(argv[0])
-        (mathsymbols, textsymbols) = getlist(argv[1], base)
+        (mathsymbols, textsymbols) = getlist(argv[2], base)
         cppfile = os.path.join(os.path.dirname(base), '../../src/frontends/qt4/GuiApplication.cpp')
         replacements = getreplacements(cppfile)
         uifile = os.path.join(os.path.dirname(base), '../../lib/ui/stdtoolbars.inc')
         toolbaritems = gettoolbaritems(uifile)
         makefile = os.path.join(os.path.dirname(base), '../../lib/Makefile.am')
         makefileentries = getmakefileentries(makefile)
-        lyxtemplate = base + '.lyx'
+        if argv[1] == 'png':
+            lyxtemplate = base + '.lyx'
+            usepng = True
+        elif argv[1] == 'svg':
+            lyxtemplate = os.path.join(os.path.dirname(base), 'generate_symbols_svg.lyx')
+            usepng = False
+        else:
+            error(usage(argv[0]))
         templatefile = io.open(base + '.lyx', 'r', encoding='utf_8')
         template = templatefile.read()
         templatefile.close()
         tempdir = tempfile.mkdtemp()
         for i in mathsymbols:
-            createimage(i, argv[2], template, argv[1], tempdir, True, replacements, toolbaritems, makefileentries)
+            createimage(i, argv[3], template, argv[2], tempdir, True, replacements, toolbaritems, makefileentries, usepng)
         for i in textsymbols:
-            createimage(i, argv[2], template, argv[1], tempdir, False, replacements, toolbaritems, makefileentries)
+            createimage(i, argv[3], template, argv[2], tempdir, False, replacements, toolbaritems, makefileentries, usepng)
         shutil.rmtree(tempdir)
     else:
         error(usage(argv[0]))