[waterfallplot] fix crash

update pdflib/fontpdf.py to address crash closes #1092
adobe-type-tools · Feb 19, 2020 · 8bb24c9 · 8bb24c9
1 parent ba14c29
commit 8bb24c9
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/python/afdko/pdflib/fontpdf.py b/python/afdko/pdflib/fontpdf.py
@@ -1989,7 +1989,12 @@ def makeWaterfallPDF(params, pdfFont, doProgressBar):
 
 	numWaterfallsOnPage = int(pageHeight / waterfallHeight)
 	numWaterFalls = len(glyphLists)
-	numPages = int(ceil(float(numWaterFalls) / numWaterfallsOnPage))
+
+	if numWaterfallsOnPage > 0:
+		numPages = int(ceil(float(numWaterFalls) / numWaterfallsOnPage))
+	else:
+		numPages = int(ceil(float(numWaterFalls)*pageHeight / waterfallHeight))
+
 	if numPages == 0:
 		numPages = 1
 	doTitle(rt_canvas, pdfFont, params, numGlyphs, numPages)