Michael Galvin wrote:
> I am trying to use Python to send to the printer a calender filled
> with a mix of text and simple graphics. I want to draw on the printed
> page something like a table with 6 rows and 7 columns to represent a
> calendar. I want to place text precisely within those boxes on the
> printed page. I am using Python 2.4 on Windows XP
>
> I was in the past able to do this within Visual Basic using its
> printer object. Visual Basic's printer object uses a coordinate
> system to allow you to draw lines and to place text on the printed
> page precisely. I have attached a file "jan06call.jpg" to this message
> to illustrate what I am trying to do.
>
> Does Python have a module which would help me do this?
>
> To put it another way, can Python control the placement of text and
> graphics precisely on the printed page?
>
> I have scoured my Python programming texts, python.org, and this
> usenet group without success. Mark Lutz's wonderful book "Programming
> Python" has not one reference to the word "printer" in its index.
> Surely, I must be overlooking something or thinking about this wrong.
>
> Michael Galvin
> Muskegon, MI
This does something like you want using piddle. It is designed to make
a pdf of a calendar on a sheet of paper that has times blocked out (the
add_data and print_action methods).
import sys, os, string, re, calendar, time, datetime, copy
from optparse import OptionParser
from piddlePDF import *
class output_pdf:
setup = { #constants to use for spacing
"upperleftx": 0.75*72,
"upperlefty": 1*72,
"rowoffset": 2.0 * 72,
"coloffset": 1.0 * 72,
"vert_margin": 25,
"horz_margin": 25,
}
canvas = PDFCanvas() # backend you want to test
def __init__(self, year, month, title ):
### global canvas
self.printcal( year, month, title)
def printcal(self, year, month, label):
""" prints the days, and times and outside boxes for each day.
sets up a dictionary with the x and y offset for each day.
"""
global calpos
calpos = {}
wkdaytxt = ['Sun', 'Mon', 'Tues', 'Wed', 'Thurs', 'Fri', 'Sat']
calendar.setfirstweekday(calendar.SUNDAY)
# use calendar to figure out days for dates (a list of lists)
month_cal= calendar.monthcalendar( year, month)
#figure out how many weeks and days
daywk1st, days= calendar.monthrange( year, month)
if len(month_cal) == 6: self.setup["rowoffset"] = 1.8*72
self.canvas.drawString(label,
10,
self.setup["upperlefty"]- 40,
Font(face="sansserif",size=16,bold=1),
color=green)
for row, wk in enumerate(month_cal):
topy = self.setup["upperlefty"]+ row*self.setup["rowoffset"]
self.canvas.drawString('00:00', 10, topy+4,
Font(face="sansserif",size=8,bold=1),
color=darkorange)
self.canvas.drawString('12:00', 10,
topy+4+(self.setup["rowoffset"]-self.setup["vert_margin"])*.5 ,
Font(face="sansserif",size=8,bold=1),
color=darkorange)
self.canvas.drawLine( self.setup["upperleftx"]-10,
topy+(self.setup["rowoffset"]-self.setup["vert_margin"])*.5,
self.setup["upperleftx"]+
7*self.setup["coloffset"],
topy+(self.setup["rowoffset"]-self.setup["vert_margin"])*.5,
color=darkorange, width=1 )
self.canvas.drawString('08:00', 10,
topy+4+(self.setup["rowoffset"]-self.setup["vert_margin"])*(8/24.0) ,
Font(face="sansserif",size=6,bold=1),
color=darkorange)
self.canvas.drawLine( self.setup["upperleftx"]-10,
topy+(self.setup["rowoffset"]-self.setup["vert_margin"])*(8/24.0),
self.setup["upperleftx"]+
7*self.setup["coloffset"],
topy+(self.setup["rowoffset"]-self.setup["vert_margin"])*(8/24.0),
color=darkorange, width=1 )
self.canvas.drawString('17:00', 10,
topy+4+(self.setup["rowoffset"]-self.setup["vert_margin"])*(17/24.0) ,
Font(face="sansserif",size=6,bold=1),
color=darkorange)
self.canvas.drawLine( self.setup["upperleftx"]-10,
topy+(self.setup["rowoffset"]-self.setup["vert_margin"])*(17/24.0),
self.setup["upperleftx"]+
7*self.setup["coloffset"],
topy+(self.setup["rowoffset"]-self.setup["vert_margin"])*(17/24.0),
color=darkorange, width=1 )
self.canvas.drawString('24:00', 10,
topy+4+(self.setup["rowoffset"]-self.setup["vert_margin"]) ,
Font(face="sansserif",size=8,bold=1),
color=darkorange)
for col, date in enumerate(wk):
topx = self.setup["upperleftx"]+
col*self.setup["coloffset"]
self.canvas.drawString(wkdaytxt[col],
topx,
self.setup["upperlefty"]*.7,
Font(face="sansserif",size=16,bold=1),
color=green)
topx = self.setup["upperleftx"]+
col*self.setup["coloffset"]
topy = self.setup["upperlefty"]+
row*self.setup["rowoffset"]
calpos[date] = (topx, topy)
for i in range(days):
topx, topy = calpos[i+1]
self.canvas.drawRect( topx, topy,
(topx+(self.setup["coloffset"]-self.setup["horz_margin"])),
(topy+(self.setup["rowoffset"]-self.setup["vert_margin"])),
edgeColor=black, edgeWidth=2,
fillColor=transparent)
self.canvas.drawString('%d'%(i+1), topx, topy-2 ,
Font(face="sansserif",size=12,bold=1),
color=red)
def date_str2value(self,intime):
tuple_names = ["tm_year", "tm_mon", "tm_mday", "tm_hour",
"tm_min", "tm_sec", "tm_wday", "tm_yday", "tm_isdst"]
t_tuple = time.localtime(intime)
t_dict = {}
for i, name in enumerate(tuple_names):
t_dict[name] = t_tuple[i]
floattime = (float(t_dict['tm_hour'])*60 +
float(t_dict['tm_min']))/float(24*60)
return t_dict, floattime
def print_action(self,year,month, action):
##action_list = re.split(r'\t', action)
##starttime = action_list[1]
##endtime = action_list[2]
client = action['destination']
s_dict, s_time = self.date_str2value(action['start_sec'])
e_dict, e_time = self.date_str2value(action['stop_sec'])
##print s_dict, s_time, ":-:", e_dict, e_time
if (s_dict['tm_mday'] == e_dict['tm_mday'] and
s_dict['tm_mon'] == int(month) and
s_dict['tm_year'] == int(year)):
topx, topy = calpos[s_dict['tm_mday']]
ypos_start = topy + (s_time *
(self.setup["rowoffset"]-self.setup["vert_margin"]))
ypos_end = topy + (e_time *
(self.setup["rowoffset"]-self.setup["vert_margin"]))
right_side = topx +
(self.setup["coloffset"]-self.setup["horz_margin"])
self.canvas.drawRect( topx, ypos_start,
right_side, ypos_end,
edgeColor=black, edgeWidth=1,
fillColor=skyblue)
self.canvas.drawString(client, topx+2, ypos_start+5,
Font(face="sansserif",size=5,bold=0),
color=darkorchid)
def add_data(self, year, month, data):
for action in data:
#print "adding data", action
self.print_action(year, month, action)
def save(self, filename):
self.canvas.flush()
self.canvas.save(filename)
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