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gramps/src/docgen/PSDrawDoc.py
Tim Waugh 71e20a6585 2004-09-14 Tim Waugh <twaugh@redhat.com> 
* src/docgen/PSDrawDoc.py (PSDrawDoc.__init__): Fixed base method
        call (missing parameter).
        * src/docgen/SvgDrawDoc.py (SvgDrawDoc.__init__): Likewise.


svn: r3542
2004-09-14 13:00:35 +00:00

406 lines
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Python
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#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000 Donald N. Allingham
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#-------------------------------------------------------------------------
#
# python modules
#
#-------------------------------------------------------------------------
import string
from math import pi, cos, sin
#-------------------------------------------------------------------------
#
# Gramps modules
#
#-------------------------------------------------------------------------
import Plugins
import Errors
import BaseDoc
from Report import run_print_dialog
from gettext import gettext as _
#-------------------------------------------------------------------------
#
# pt2cm - points to cm conversion
#
#-------------------------------------------------------------------------
def pt2cm(val):
return (float(val)/72.0)*2.54
#-------------------------------------------------------------------------
#
# PSDrawDoc
#
#-------------------------------------------------------------------------
class PSDrawDoc(BaseDoc.BaseDoc):
def __init__(self,styles,type,template,orientation):
BaseDoc.BaseDoc.__init__(self,styles,type,template,orientation)
self.f = None
self.filename = None
self.level = 0
self.page = 0
def fontdef(self,para):
font = para.get_font()
if font.get_type_face() == BaseDoc.FONT_SERIF:
if font.get_bold():
if font.get_italic():
font_name = "/Times-BoldItalic"
else:
font_name = "/Times-Bold"
else:
if font.get_italic():
font_name = "/Times-Italic"
else:
font_name = "/Times-Roman"
else:
if font.get_bold():
if font.get_italic():
font_name = "/Helvetica-BoldOblique"
else:
font_name = "/Helvetica-Bold"
else:
if font.get_italic():
font_name = "/Helvetica-Oblique"
else:
font_name = "/Helvetica"
return "%s find-latin-font %d scalefont setfont\n" % (font_name,font.get_size())
def translate(self,x,y):
return (x,self.height-y)
def open(self,filename):
if filename[-3:] != ".ps":
self.filename = filename + ".ps"
else:
self.filename = filename
try:
self.f = open(self.filename,"w")
except IOError,msg:
errmsg = "%s\n%s" % (_("Could not create %s") % self.filename, msg)
raise Errors.ReportError(errmsg)
except:
raise Errors.ReportError(_("Could not create %s") % self.filename)
self.f.write('%!PS-Adobe-3.0\n')
self.f.write('%%LanguageLevel: 2\n')
self.f.write('%%Pages: (atend)\n')
self.f.write('%%PageOrder: Ascend\n')
if self.orientation != BaseDoc.PAPER_PORTRAIT:
self.f.write('%%Orientation: Landscape\n')
else:
self.f.write('%%Orientation: Portrait\n')
self.f.write('%%EndComments\n')
self.f.write('/cm { 28.34 mul } def\n')
self.f.write('% build iso-latin-1 version of a font\n')
self.f.write('/font-to-iso-latin-1 { % <font> font-to-iso-latin-1 <font>\n')
self.f.write('%% reencode for iso latin1; from the 2nd edition red book, sec 5.6.1\n')
self.f.write('dup length dict begin {1 index /FID ne {def} {pop pop} ifelse} forall\n')
self.f.write('/Encoding ISOLatin1Encoding def currentdict end\n')
self.f.write('dup /FontName get 80 string cvs (-ISOLatin1) concatstrings cvn \n')
self.f.write('exch definefont\n')
self.f.write('} def\n')
self.f.write('\n')
self.f.write('/find-latin-font { % <name> find-latin-font <font>\n')
self.f.write('findfont font-to-iso-latin-1\n')
self.f.write('} def\n')
self.filename = filename
def close(self):
self.f.write('%%Trailer\n')
self.f.write('%%Pages: ')
self.f.write('%d\n' % self.page)
self.f.write('%%EOF\n')
self.f.close()
if self.print_req:
run_print_dialog (self.filename)
def write_text(self,text):
pass
def start_page(self):
self.page = self.page + 1
self.f.write("%%Page:")
self.f.write("%d %d\n" % (self.page,self.page))
if self.orientation != BaseDoc.PAPER_PORTRAIT:
self.f.write('90 rotate %5.2f cm %5.2f cm translate\n' % (0,-1*self.height))
def end_page(self):
self.f.write('showpage\n')
self.f.write('%%PageTrailer\n')
def encode_text(self,p,text):
fdef = self.fontdef(p)
try:
orig = unicode(text)
new_text = orig.encode('iso-8859-1')
except:
new_text = "?"
return (new_text,fdef)
def center_text(self,style,text,x,y):
x += self.lmargin
y += self.tmargin
stype = self.draw_styles[style]
pname = stype.get_paragraph_style()
p = self.style_list[pname]
(text,fdef) = self.encode_text(p,text)
self.f.write('gsave\n')
self.f.write('%.4f %.4f %.4f setrgbcolor\n' % rgb_color(stype.get_color()))
self.f.write(fdef)
self.f.write('(%s) dup stringwidth pop -2 div ' % text)
self.f.write('%.4f cm add %.4f cm moveto ' % self.translate(x,y))
self.f.write('show\n')
self.f.write('grestore\n')
def draw_text(self,style,text,x1,y1):
stype = self.draw_styles[style]
para_name = stype.get_paragraph_style()
p = self.style_list[para_name]
x1 = x1 + self.lmargin
y1 = y1 + self.tmargin + pt2cm(p.get_font().get_size())
self.f.write('gsave\n')
self.f.write('%f cm %f cm moveto\n' % self.translate(x1,y1))
self.f.write(self.fontdef(p))
self.f.write('(%s) show grestore\n' % text)
def draw_wedge(self, style, centerx, centery, radius, start_angle,
end_angle, short_radius=0):
while end_angle < start_angle:
end_angle += 360
p = []
degreestoradians = pi/180.0
radiansdelta = degreestoradians/2
sangle = start_angle*degreestoradians
eangle = end_angle*degreestoradians
while eangle<sangle:
eangle = eangle+2*pi
angle = sangle
if short_radius == 0:
p.append((centerx,centery))
else:
origx = (centerx + cos(angle)*short_radius)
origy = (centery + sin(angle)*short_radius)
p.append((origx, origy))
while angle<eangle:
x = centerx + cos(angle)*radius
y = centery + sin(angle)*radius
p.append((x,y))
angle = angle+radiansdelta
x = centerx + cos(eangle)*radius
y = centery + sin(eangle)*radius
p.append((x,y))
if short_radius:
x = centerx + cos(eangle)*short_radius
y = centery + sin(eangle)*short_radius
p.append((x,y))
angle = eangle
while angle>=sangle:
x = centerx + cos(angle)*short_radius
y = centery + sin(angle)*short_radius
p.append((x,y))
angle = angle-radiansdelta
self.draw_path(style,p)
delta = (eangle - sangle)/2.0
rad = short_radius + (radius-short_radius)/2.0
return ( (centerx + cos(sangle+delta) * rad),
(centery + sin(sangle+delta) * rad))
def rotate_text(self,style,text,x,y,angle):
x += self.lmargin
y += self.tmargin
stype = self.draw_styles[style]
pname = stype.get_paragraph_style()
p = self.style_list[pname]
font = p.get_font()
size = font.get_size()
(new_text,fdef) = self.encode_text(p,text[0])
self.f.write('gsave\n')
self.f.write(fdef)
self.f.write('%4.2f cm %4.2f cm translate\n' % self.translate(x,y))
self.f.write('%4.2f rotate\n' % -angle)
self.f.write('%.4f %.4f %.4f setrgbcolor\n' % rgb_color(stype.get_color()))
val = len(text)
y = ((size * val)/2.0) - size
for line in text:
self.f.write('(%s) dup stringwidth pop -2 div '% line.encode('iso-8859-1'))
self.f.write("%.4f moveto show\n" % y)
y -= size
self.f.write('grestore\n')
def draw_path(self,style,path):
stype = self.draw_styles[style]
self.f.write('gsave\n')
self.f.write('newpath\n')
self.f.write('%.4f setlinewidth\n' % stype.get_line_width())
if stype.get_line_style() == BaseDoc.SOLID:
self.f.write('[] 0 setdash\n')
else:
self.f.write('[2 4] 0 setdash\n')
point = path[0]
x1 = point[0]+self.lmargin
y1 = point[1]+self.tmargin
self.f.write('%f cm %f cm moveto\n' % self.translate(x1,y1))
for point in path[1:]:
x1 = point[0]+self.lmargin
y1 = point[1]+self.tmargin
self.f.write('%f cm %f cm lineto\n' % self.translate(x1,y1))
self.f.write('closepath\n')
color = stype.get_fill_color()
self.f.write('gsave %.4f %.4f %.4f setrgbcolor fill grestore\n' % rgb_color(color))
self.f.write('%.4f %.4f %.4f setrgbcolor stroke\n' % rgb_color(stype.get_color()))
self.f.write('grestore\n')
def draw_line(self,style,x1,y1,x2,y2):
x1 = x1 + self.lmargin
x2 = x2 + self.lmargin
y1 = y1 + self.tmargin
y2 = y2 + self.tmargin
stype = self.draw_styles[style]
self.f.write('gsave newpath\n')
self.f.write('%f cm %f cm moveto\n' % self.translate(x1,y1))
self.f.write('%f cm %f cm lineto\n' % self.translate(x2,y2))
self.f.write('%.4f setlinewidth\n' % stype.get_line_width())
if stype.get_line_style() == BaseDoc.SOLID:
self.f.write('[] 0 setdash\n')
else:
self.f.write('[2 4] 0 setdash\n')
self.f.write('2 setlinecap\n')
self.f.write('%.4f %.4f %.4f setrgbcolor stroke\n' % rgb_color(stype.get_color()))
self.f.write('grestore\n')
def patch_text(self,text):
return text.encode('iso-8859-1')
def draw_bar(self,style,x1,y1,x2,y2):
x1 = x1 + self.lmargin
x2 = x2 + self.lmargin
y1 = y1 + self.tmargin
y2 = y2 + self.tmargin
box_type = self.draw_styles[style]
self.f.write('gsave\n')
self.f.write("%f cm %f cm moveto\n" % self.translate(x1,y1))
self.f.write("0 %f cm rlineto\n" % (y2-y1))
self.f.write("%f cm 0 rlineto\n" % (x2-x1))
self.f.write("0 %f cm rlineto\n" % (y1-y2))
self.f.write('closepath\n')
self.f.write("%.4f setlinewidth\n" % box_type.get_line_width())
self.f.write('%.4f %.4f %.4f setrgbcolor stroke\n' % rgb_color(box_type.get_color()))
self.f.write('grestore\n')
def draw_box(self,style,text,x,y):
x = x + self.lmargin
y = y + self.tmargin
box_style = self.draw_styles[style]
para_name = box_style.get_paragraph_style()
p = self.style_list[para_name]
(junk,fdef) = self.encode_text(p,text)
bh = box_style.get_height()
bw = box_style.get_width()
self.f.write('gsave\n')
shadsize = box_style.get_shadow_space()
if box_style.get_shadow():
self.f.write('newpath\n')
self.f.write('%f cm %f cm moveto\n' % self.translate(x+shadsize,y+shadsize))
self.f.write('0 -%f cm rlineto\n' % bh)
self.f.write('%f cm 0 rlineto\n' % bw)
self.f.write('0 %f cm rlineto\n' % bh)
self.f.write('closepath\n')
self.f.write('.5 setgray\n')
self.f.write('fill\n')
self.f.write('newpath\n')
self.f.write('%f cm %f cm moveto\n' % self.translate(x,y))
self.f.write('0 -%f cm rlineto\n' % bh)
self.f.write('%f cm 0 rlineto\n' % bw)
self.f.write('0 %f cm rlineto\n' % bh)
self.f.write('closepath\n')
self.f.write('1 setgray\n')
self.f.write('fill\n')
self.f.write('newpath\n')
self.f.write('%f cm %f cm moveto\n' % self.translate(x,y))
self.f.write('0 -%f cm rlineto\n' % bh)
self.f.write('%f cm 0 rlineto\n' % bw)
self.f.write('0 %f cm rlineto\n' % bh)
self.f.write('closepath\n')
self.f.write('%.4f setlinewidth\n' % box_style.get_line_width())
self.f.write('%.4f %.4f %.4f setrgbcolor stroke\n' % rgb_color(box_style.get_color()))
if text != "":
(text,fdef) = self.encode_text(p,text)
self.f.write(fdef)
lines = string.split(text,'\n')
nlines = len(lines)
mar = 10/28.35
f_in_cm = p.get_font().get_size()/28.35
fs = f_in_cm * 1.2
center = y + (bh + fs)/2.0 + (fs*shadsize)
ystart = center - (fs/2.0) * nlines
for i in range(nlines):
ypos = ystart + (i * fs)
self.f.write('%f cm %f cm moveto\n' % self.translate(x+mar,ypos))
self.f.write("(%s) show\n" % lines[i])
self.f.write('grestore\n')
def rgb_color(color):
r = float(color[0])/255.0
g = float(color[1])/255.0
b = float(color[2])/255.0
return (r,g,b)
Plugins.register_draw_doc(_("PostScript"),PSDrawDoc,1,1,".ps",
_("Print a copy"));
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