Added Pen for reportlab.graphics.

git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@451 4cde692c-a291-49d1-8350-778aa11640f8

Lib/fontTools/pens/reportLabPen.py

@@ -0,0 +1,66 @@
+from fontTools.pens.basePen import BasePen
+
+
+class ReportLabPen(BasePen):
+
+	"""A pen for drawing onto a reportlab.graphics.shapes.Path object."""
+
+	def __init__(self, glyphSet, path=None):
+		BasePen.__init__(self, glyphSet)
+		if path is None:
+			from reportlab.graphics.shapes import Path
+			path = Path()
+		self.path = path
+
+	def _moveTo(self, (x,y)):
+		self.path.moveTo(x,y)
+
+	def _lineTo(self, (x,y)):
+		self.path.lineTo(x,y)
+
+	def _curveToOne(self, (x1,y1), (x2,y2), (x3,y3)):
+		self.path.curveTo(x1, y1, x2, y2, x3, y3)
+
+	def _closePath(self):
+		self.path.closePath()
+
+
+if __name__=="__main__":
+	import sys
+	if len(sys.argv) < 3:
+		print "Usage: reportLabPen.py <OTF/TTF font> <glyphname> [<image file to create>]"
+		print "  If no image file name is created, by default <glyphname>.png is created."
+		print "  example: reportLabPen.py Arial.TTF R test.png"
+		print "  (The file format will be PNG, regardless of the image file name supplied)"
+		sys.exit(0)
+
+	from fontTools.ttLib import TTFont
+	from reportlab.lib import colors
+	from reportlab.graphics.shapes import Path
+
+	path = sys.argv[1]
+	glyphName = sys.argv[2]
+	if (len(sys.argv) > 3):
+		imageFile = sys.argv[3]
+	else:
+		imageFile = "%s.png" % glyphName
+
+	font = TTFont(path)  # it would work just as well with fontTools.t1Lib.T1Font
+	gs = font.getGlyphSet()
+	pen = ReportLabPen(gs, Path(fillColor=colors.red, strokeWidth=5))
+	g = gs[glyphName]
+	g.draw(pen)
+
+	w, h = g.width, 1000
+	from reportlab.graphics import renderPM
+	from reportlab.graphics.shapes import Group, Drawing, scale
+
+	# Everything is wrapped in a group to allow transformations.
+	g = Group(pen.path)
+	g.translate(0, 200)
+	g.scale(0.3, 0.3)
+
+	d = Drawing(w, h)
+	d.add(g)
+
+	renderPM.drawToFile(d, imageFile, fmt="PNG")