Turn images to grayscale by default

legi2pdf/lib/legi2pdf/pdfGenerator.py

@@ -51,6 +51,12 @@ from pythonlib.ziputils import unzipToDirectory
 from pythonlib.utf8utils import utf8encode
 from pythonlib import magic
 
+try:
+    import PIL
+    import PIL.Image
+except ImportError:
+    PIL = None
+
 tempfilelock = threading.Lock()
 tempfile.template = "F%ld-" % time.time()
 
@@ -289,7 +295,9 @@ def convertTex2Pdf(d, latexFileName):
     subprocess.call([cmd], cwd=d, shell=True)
     subprocess.call([cmd], cwd=d, shell=True )
 
-def convertLegi2Pdf(inputFileName, pdfFileName, latexFileName, keepLatex=0, debug=0, annexes=[], draft=0, toc=True, style="normal", useFont=None, legacyMode=True):
+def convertLegi2Pdf(inputFileName, pdfFileName, latexFileName, keepLatex=0,
+                    debug=0, annexes=[], draft=0, toc=True, style="normal", useFont=None,
+                    legacyMode=True, grayscale=True):
     """
     Based on input .legi document, generatePdf is responsible
     to generate a PDF documents.
@@ -315,6 +323,14 @@ def convertLegi2Pdf(inputFileName, pdfFileName, latexFileName, keepLatex=0, debu
             contentEntryInfo, contentEntryData = allEntries.get( nameContentLegi, (None, None))
             if contentEntryInfo == None or contentEntryData == None:
                 raise PdfGeneratorException, 'Corrupted legi file: No %s entry' % (nameContentLegi)
+            if grayscale and PIL:
+                for filename in os.listdir(tempDir):
+                    if not os.path.splitext(filename)[-1] in ('.jpg', '.png'):
+                        continue
+                    # image, convert it to grayscale
+                    image = PIL.Image.open(os.path.join(tempDir, filename))
+                    grayscaled = image.convert('L')
+                    grayscaled.save(os.path.join(tempDir, filename))
         elif fmt == "xml":
             contentEntryData = f.read()
             _writeToFile(os.path.join(tempDir, nameContentLegi), contentEntryData)

legi2pdf/script/db2pdf.py

@@ -43,6 +43,7 @@ Usage: pdfGenerator.py [options]
       --parchemin or -p: style parchemin
       --bqr or -q: style BQR
       --legacy: legacy mode (old XSL and TeX)
+      --nograyscale: do not convert to grayscale
         
         annexe definition = "filename|title|scale"
 
@@ -69,12 +70,14 @@ if __name__ == '__main__':
     style= "normal"
     annexes = []
     legacyMode = False
+    grayscale = True
 
     optlist, args = getopt.getopt(sys.argv[1:], 
             'i:o:t:a:hldbpq',
             ['input-file=', 'output-pdf-file=', 'output-latex-file=', 
              'annexe=', 'help', 'latex', 'debug', 'brouillon', 'notoc',
-             'parchemin', 'bqr', 'use-font=', 'legacy', 'ng'])
+             'parchemin', 'bqr', 'use-font=', 'legacy', 'ng',
+             'nograyscale'])
     
     for option,value in optlist:
         if option == '-i' or option == '--input-file':
@@ -103,6 +106,8 @@ if __name__ == '__main__':
             style = "bqr"
         elif option == '--notoc':
             toc = False
+        elif option == '--nograyscale':
+            grayscale = False
         elif option == '-a' or option == '--annexe':
             r = value.split('|')
             if len(r) == 1:
@@ -133,7 +138,8 @@ if __name__ == '__main__':
                 outputLatexFile = outputPdfFile + '.tex'
 
         convertLegi2Pdf(inputFile, outputPdfFile, outputLatexFile, keepLatex,
-                debug, annexes, draft, toc, style, useFont, legacyMode)
+                        debug, annexes, draft, toc, style, useFont, legacyMode,
+                        grayscale)
         if help:
             printUsage()
     else: