2 import SCons.Builder, SCons.Action
4 def dia_getSize(env,source):
6 for line in os.popen(env['DIACOM']+" -e /proc/self/fd/1 -t eps "+str(source[0]),"r"):
7 if line.startswith("%%BoundingBox:"):
8 size=map(int,line.split()[3:])
12 def dia2png_generator(source, target, env, for_signature):
14 return "$DIACOM -t png -s $DIA2PNGDPI,$DIA2PNGMAXWIDTH $TARGET $SOURCE"
15 size = dia_getSize(env,source)
16 if not size: return None;
17 size[0] = size[0]*int(env['DIA2PNGDPI'])/72
18 size[1] = size[1]*int(env['DIA2PNGDPI'])/72
19 if size[0] > env['DIA2PNGMAXWIDTH']:
20 size[1] = size[1]*env['DIA2PNGMAXWIDTH']/size[0]
21 size[0] = env['DIA2PNGMAXWIDTH']
22 return SCons.Action.Action("$DIACOM -t png -s %dx%d -e $TARGET $SOURCE" % tuple(size))
24 Dia2Png = SCons.Builder.Builder(suffix = ".png",
26 generator = dia2png_generator,
30 env['BUILDERS']['Dia2Png'] = Dia2Png
32 env['DIA2PNGDPI'] = 115
33 env['DIA2PNGMAXWIDTH'] = 800
36 return env.Detect("dia")