[reportlab-users] Dimensions, line lengths

[Michael Hipp]

The program below is a hacked-up version of what appears in the 2.0 User's 
Guide section 5.2 (p. 56). I'm trying to draw lines that start 0.25" from the 
left and extend 7.0" on US letter. The key lines are flagged with #***. But on 
screen and on print the line starts some 0.55" from the left and the line is 
only 6.55" long. What am I doing wrong?

I've attached the resulting PDF and the program.

Thanks,
Michael

from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.rl_config import defaultPageSize
from reportlab.lib.units import inch
from reportlab.platypus.flowables import Flowable, KeepTogether
from reportlab.lib.pagesizes import letter, A4

defaultPageSize = letter
PAGE_HEIGHT=defaultPageSize[1]; PAGE_WIDTH=defaultPageSize[0]
styles = getSampleStyleSheet()

def myFirstPage(canvas, doc):
     canvas.saveState()
     canvas.setFont('Helvetica-Bold',16)
     canvas.drawCentredString(PAGE_WIDTH/2.0, PAGE_HEIGHT-inch*0.5, "Howdy World")
     canvas.setFont('Helvetica',9)
     canvas.drawCentredString(PAGE_WIDTH/2.0, 0.25*inch, "Page %d" % doc.page)
     canvas.restoreState()

def myLaterPages(canvas, doc):
     canvas.saveState()
     canvas.setFont('Helvetica',9)
     canvas.drawCentredString(PAGE_WIDTH/2.0, 0.25*inch, "Page %d" % doc.page)
     canvas.restoreState()

class DividerLine(Flowable):
     def __init__(self):
         self.xoffset = 0.0
         self.size=4
         self.scale = 1.0

     def wrap(self, *args):
         return (self.xoffset, self.size)

     def draw(self):
         canvas = self.canv
         canvas.setLineWidth(0.5)
         canvas.line(0, 0, 7.0*inch, 0) #***


def go():
     doc = SimpleDocTemplate("drawline.pdf", pagesize=letter)
     doc.leftMargin = 0.25*inch  #***
     doc.rightMargin = 0.25*inch
     doc.topMargin = 0.5*inch
     doc.bottomMargin = 0.5*inch
     Story = []
     style = styles["Normal"]
     style.fontName = "Courier"
     for i in range(5):
         l = DividerLine()
         Story.append(l)
     doc.build(Story, onFirstPage=myFirstPage, onLaterPages=myLaterPages)

go()
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