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* src/docgen/LPRDoc.py: Table support correction: transferring

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row to the next page.


svn: r2944
This commit is contained in:
Alex Roitman 2004-03-01 16:50:23 +00:00
parent aabbe1523a
commit d4d0db9e65
2 changed files with 154 additions and 88 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2004-03-01 Alex Roitman <shura@alex.neuro.umn.edu>
* src/docgen/LPRDoc.py: Table support correction: transferring
row to the next page.
2004-02-29 Don Allingham <dallingham@users.sourceforge.net>
* src/gramps_main.py: remove local media concept
* src/RelLib.py: remove local media concept

186
src/docgen/LPRDoc.py
View File

@ -48,32 +48,43 @@ import Plugins
import ImgManip
from gettext import gettext as _
#------------------------------------------------------------------------
#
# Paragraph Handling
#
#------------------------------------------------------------------------
#------------------------------------------------------------------------
#
# Units conversion
#
#------------------------------------------------------------------------
def cm(unit):
def u2cm(unit):
"""
Convert gnome-print units to cm
"""
return 2.54 * unit / 72.0
def unit(cms):
def cm2u(cm):
"""
Convert cms to gnome-print units
Convert cm to gnome-print units
"""
return cms * 72.0 / 2.54
return cm * 72.0 / 2.54
#------------------------------------------------------------------------
#
# LPRDoc
# Constants
#
#------------------------------------------------------------------------
# Spacing in points (distance between the bottoms of two adjacent lines)
_LINE_SPACING = 20
# An inch for each margin so far (should use styles later)
_LEFT_MARGIN = cm2u(2.54)
_RIGHT_MARGIN = cm2u(2.54)
_TOP_MARGIN = cm2u(2.54)
_BOTTOM_MARGIN = cm2u(2.54)
# Default font
_FONT_SIZE = 12
_FONT_NAME = 'Serif'
#------------------------------------------------------------------------
#
# LPRDoc class
#
#------------------------------------------------------------------------
class LPRDoc(BaseDoc.BaseDoc):
@ -98,14 +109,16 @@ class LPRDoc(BaseDoc.BaseDoc):
#find out what the width and height of the page is
__width, __height = gnomeprint.job_get_page_size_from_config(self.__job.get_config())
self.__left_margin=__width*0.1
self.__right_margin=__width*0.9
self.__top_margin=__height*0.9
self.__bottom_margin=__height*0.1
self.__left_margin = _LEFT_MARGIN
self.__right_margin = __width - _RIGHT_MARGIN
self.__top_margin = __height - _TOP_MARGIN
self.__bottom_margin = _BOTTOM_MARGIN
#set what fonts we will use
self.__regular_font=gnomeprint.font_find_closest("Serif Regular", 10)
self.__bold_font=gnomeprint.font_find_closest("Serif Bold", 10)
self.__regular_font=gnomeprint.font_find_closest(
"%s Regular" % _FONT_NAME, _FONT_SIZE)
self.__bold_font=gnomeprint.font_find_closest(
"%s Bold" % _FONT_NAME, _FONT_SIZE)
self.__font=self.__regular_font
self.start_page(self)
@ -211,6 +224,12 @@ class LPRDoc(BaseDoc.BaseDoc):
self.__in_table=1
self.__tbl_style = self.table_styles[style_name]
self.__ncols = self.__tbl_style.get_columns()
table_width = (self.__right_margin - self.__left_margin) * \
self.__tbl_style.get_width() / 100.0
self.cell_widths = [0] * self.__ncols
for cell in range(self.__ncols):
self.cell_widths[cell] = table_width * \
self.__tbl_style.get_column_width(cell) / 100.0
def end_table(self):
"""Close the table environment"""
@ -264,7 +283,7 @@ class LPRDoc(BaseDoc.BaseDoc):
text - text to write.
"""
if self__in_paragraph != 1:
if self.__in_paragraph != 1:
self.start_paragraph()
self.write(text)
@ -342,7 +361,7 @@ class LPRDoc(BaseDoc.BaseDoc):
#function to help us advance a line
def __advance_line(self, y):
return y-20
return y - _LINE_SPACING
#function to determine the width of text
def __text_width(self, text):
@ -360,8 +379,30 @@ class LPRDoc(BaseDoc.BaseDoc):
return __max_word_size
#function to print out text between left_margin and right_margin
#at position y on page
#function to fund out the height of the text between left_margin
# and right_margin -- kinda like __print_text, but without printing.
def __text_height(self, text, width):
nlines = 1
if width < self.__text_width(text):
#divide up text and print
textlist = string.split(text)
text = ""
for element in textlist:
if self.__text_width(text + element + " ") < width:
text = text + element + " "
else:
#__text contains as many words as this __width allows
nlines = nlines + 1
text = element + " "
#if __text still contains data, we will want to print it out
if text:
nlines = nlines + 1
return nlines * _LINE_SPACING
def __print_text(self, text, x, y, left_margin, right_margin):
__width=right_margin-left_margin
@ -402,75 +443,96 @@ class LPRDoc(BaseDoc.BaseDoc):
def __output_table(self):
"""do calcs on data in table and output data in a formatted way"""
__max_col_size=[0]*self.__ncols
__min_col_size=[0]*self.__ncols
__min_col_size = [self.__right_margin - self.__left_margin] \
* self.__ncols
__max_vspace = [0] * len(self.__table_data)
for __row in self.__table_data:
for __row_num in range(len(self.__table_data)):
__row = self.__table_data[__row_num][:]
#do calcs on each __row and keep track on max length of each column
for __col in range(self.__ncols):
__row[__col]=__row[__col]+" "*3;
if __max_col_size[__col] < self.__text_width(__row[__col]):
__max_col_size[__col]=self.__text_width(__row[__col])
__min_col_size[__col]=self.__min_column_size(__row[__col])
__min = self.__min_column_size(__row[__col]+" "*3)
if __min < __min_col_size[__col]:
__min_col_size[__col] = __min
__max = self.__text_height(__row[__col], self.cell_widths[__col])
if __max > __max_vspace[__row_num]:
__max_vspace[__row_num] = __max
#now we have an idea of the max size of each column
#now output data in the table
#find total width that the table needs to be.
#later this value may be used to cut the longest columns down
#so that data fits on the width of the page
__total_table_width=0
for __value in __max_col_size:
__total_table_width+=__value
__min_table_width = sum(__min_col_size)
#is table width larger than the width of the paper?
if __total_table_width > (self.__right_margin - self.__left_margin):
#figure out the largest our table can be to fit on a page
__width=self.__right_margin - self.__left_margin
#find out how much larger our table is than what is allowed
__extra_length=__total_table_width - __width
#for each column, substract the extra width off so that
#each column gets deduced a width determined by its
#size compared to the other columns
#(larger columns get more taken off, smaller columns get
# less width taken off)
while __extra_length > 1:
print __extra_length
for __col in range(self.__ncols):
if __extra_length<=1: break
if __max_col_size[__col] > __min_col_size[__col]:
__temp=__max_col_size[__col]-(__max_col_size[__col]/__total_table_width)*__extra_length
if __temp >= __min_col_size[__col]:
__max_col_size[__col]=__temp
__total_table_width=0
for __value in __max_col_size:
__total_table_width+=__value
__extra_length=__total_table_width - __width
if __min_table_width > (self.__right_margin - self.__left_margin):
print "Table does not fit onto the page.\n"
#BILLY:
# I have commented this block since the table width is now determined
# from the start_table's style argument. Here we only detect if we
# have minimum column sizes exceeding the page width -- should not
# happen really. If it does, there's no good way to fix it,
# so I'm not even attempting. It's like fitting table
# with three cells, each containing a word occupying the whole line.
#
# #figure out the largest our table can be to fit on a page
# __width=self.__right_margin - self.__left_margin
# #find out how much larger our table is than what is allowed
# __extra_length=__min_table_width - __width
# #for each column, substract the extra width off so that
# #each column gets deduced a width determined by its
# #size compared to the other columns
# #(larger columns get more taken off, smaller columns get
# # less width taken off)
#
# __temp = 0
# while __extra_length > 1:
# print "Extra length:", __extra_length
# for __col in range(self.__ncols):
# if __extra_length<=1: break
# if __max_col_size[__col] > __min_col_size[__col]:
# __temp = self.cell_widths[__col] \
# - (self.cell_widths[__col]/__min_table_width) \
# * __extra_length
# if __temp >= __min_col_size[__col]:
# __max_col_size[__col]=__temp
#
# __min_table_width=0
# for __value in __max_col_size:
# __min_table_width+=__value
# __extra_length=__min_table_width - __width
#for now we will assume left justification of tables
#output data in table
__min_y=self.__y #need to keep track of tallest column of
#text in each row
for __row in self.__table_data:
for __row_num in range(len(self.__table_data)):
__row = self.__table_data[__row_num]
__x=self.__left_margin #reset so that x is at margin
# If this row puts us below the bottom, start new page here
if self.__y - __max_vspace[__row_num] < self.__bottom_margin:
self.end_page()
self.start_page()
__min_y=self.__y
for __col in range(self.__ncols):
__nothing, __y=self.__print_text(__row[__col],
self.__x, self.__y,
__x, __x+__max_col_size[__col])
__x, __x+self.cell_widths[__col])
__x=__x+__max_col_size[__col] # set up margin for this row
__x=__x+self.cell_widths[__col] # set up margin for this row
if __y < __min_y: # if we go below current lowest
__min_y=__y # column
self.__y=__min_y #reset so that we do not overwrite
#see if we are about to go off the page, if so, create new page
if self.__y < self.__bottom_margin:
self.end_page()
self.start_page()
__min_y=self.__y
#if self.__y < self.__bottom_margin:
# self.end_page()
# self.start_page()
# __min_y=self.__y
#function to print text to a printer
def __do_print(self,dialog, job):