[reportlab-users] Paragraph wrapping and height calculation
Tue, 06 Apr 2004 12:49:30 +0800
There seems to be some problems with the height calculation of
Paragraphs when wrap() is called.
Reading the docs/code etc I believe wrapOn and wrap when called on
flowables (and specifically the Paragraph)
should return the width and height that was used of the available width
and height, but thats certainly not what is happending for me.
(I have one line of text with a 139 pt font) and I get a height back of 12.
Looking at the code I see the following.
def wrap(self, availWidth, availHeight):
# work out widths array for breaking
self.width = availWidth
leftIndent = self.style.leftIndent
first_line_width = availWidth -
(leftIndent+self.style.firstLineIndent) - self.style.rightIndent
later_widths = availWidth - leftIndent - self.style.rightIndent
self.blPara = self.breakLines([first_line_width, later_widths])
self.height = len(self.blPara.lines) * self.style.leading
return (self.width, self.height)
Which as far as I can tell doesn't take into account the height of each
line in the wrapped text, just the number of lines and the leading specified
in the style.
Am I reading this wrong or am I missing something else.