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#! /usr/bin/env python
#
# Copyright (C) 2007, One Laptop Per Child
#
# Muriel de Souza Godoi - muriel@laptop.org
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import os
import gc
import rsvg
import re
import svglabel
import gtk
import gobject
import pango
class SvgCard(gtk.DrawingArea):
border_svg = os.path.join(os.path.dirname(__file__), "images/card.svg")
text_svg = os.path.join(os.path.dirname(__file__), "images/card-text.svg")
# Default properties
default_props = {}
default_props['back_border'] = {'filename':border_svg, 'fill_color':'#b2b3b7', 'stroke_color':'#b2b3b7', 'opacity':'1'}
default_props['back_h_border'] = {'filename':border_svg, 'fill_color':'#b2b3b7', 'stroke_color':'#ffffff', 'opacity':'1'}
default_props['back_text'] = {'filename':text_svg, 'text_color':'#c7c8cc'}
default_props['front_border'] = {'filename':border_svg, 'fill_color':'#4c4d4f', 'stroke_color':'#ffffff', 'opacity':'0'}
default_props['front_h_border'] = {'filename':border_svg, 'fill_color':'#555555', 'stroke_color':'#888888', 'opacity':'0.5'}
default_props['front_text'] = {'filename':text_svg, 'text_color':'#ffffff'}
def __init__(self, id, pprops, pcache, jpeg, size):
gtk.DrawingArea.__init__(self)
self.set_size_request(size, size)
self.bg_color = '#000000'
self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse(self.bg_color))
self.connect('expose-event', self._expose_cb)
self.flipped = False
self.id = id
self.jpeg = jpeg
self.size = size
self.set_flags(gtk.CAN_FOCUS)
# Views properties
views = ['back_border','back_h_border','back_text','front_border','front_h_border','front_text']
self.pprops = pprops
self.props = {}
for view in views:
self.props[view] = {}
self.props[view].update(self.default_props[view])
self.props[view].update(pprops.get(view, {}))
# Cache
self.cache = {}
self.cache.update(pcache)
if len(self.cache) == 0:
build_all = True
else:
build_all = False
self.build_all = build_all
if build_all or pprops.has_key('back_border'):
self.cache['back_border']= self._read_icon_data(self.props['back_border'])
if build_all or pprops.has_key('back_h_border'):
self.cache['back_h_border']= self._read_icon_data(self.props['back_h_border'])
if build_all or pprops.has_key('back_text'):
#text = CardText(self.props['back_text'].get('card_text', ''), self.props['back_text'].get('text_color'))
text = self._read_icon_data(self.props['back_text'])
self.cache['back_text'] = text.scale_simple(self.size-14, self.size-14, gtk.gdk.INTERP_BILINEAR)
del text
self.back_layout = self.get_text_layout(self.props['back_text'].get('card_text', ''), self.size-12)
self.back_layout_position = (self.size -(self.back_layout.get_size()[1]/1000))/2
self.current_layout_position = self.back_layout_position
self.current_text_color = self.props['back_text'].get('text_color','#c7c8cc')
if build_all or self.pprops.has_key('back_border') or self.pprops.has_key('back_text'):
self.cache['back'] = self.build_face('back')
if build_all or self.pprops.has_key('back_h_border') or self.pprops.has_key('back_text'):
self.cache['back_h'] = self.build_face('back_h')
self.current_pixbuf = self.cache['back']
self.current_layout = self.back_layout
# Set events and listeners
self.set_events(gtk.gdk.ALL_EVENTS_MASK)
gc.collect()
self.show()
def _expose_cb(self, widget, event):
self.window.draw_pixbuf(None, self.current_pixbuf, 0, 0, 0, 0)
gc = self.window.new_gc()
widget.window.draw_layout(gc, x=6, y=self.current_layout_position, layout=self.current_layout, foreground=gtk.gdk.color_parse(self.current_text_color))
return False
def _read_icon_data(self, dict):
icon_file = open(dict.get('filename', 'card.svg'), 'r')
data = icon_file.read()
icon_file.close()
# Replace borders parameters
entity = '<!ENTITY fill_color "%s">' % dict.get('fill_color', '')
data = re.sub('<!ENTITY fill_color .*>', entity, data)
entity = '<!ENTITY stroke_color "%s">' % dict.get('stroke_color', '')
data = re.sub('<!ENTITY stroke_color .*>', entity, data)
entity = '<!ENTITY opacity "%s">' % dict.get('opacity', '')
data = re.sub('<!ENTITY opacity .*>', entity, data)
data = re.sub('size_card1', str(self.size), data)
data = re.sub('size_card2', str(self.size-6), data)
data = re.sub('size_card3', str(self.size-17), data)
# Replace text parameters
entity = '<!ENTITY text_color "%s">' % dict.get('text_color', '#ffffff')
data = re.sub('<!ENTITY text_color .*>', entity, data)
data = re.sub('card_text', dict.get('card_text', ''), data)
data = re.sub('card_line1', dict.get('card_line1', ''), data)
data = re.sub('card_line2', dict.get('card_line2', ''), data)
data = re.sub('card_line3', dict.get('card_line3', ''), data)
data = re.sub('card_line4', dict.get('card_line4', ''), data)
self.data_size = len(data)
return rsvg.Handle(data=data).get_pixbuf()
def build_face(self, face):
if face.endswith('_h'):
text = face[:-2]
else:
text = face
pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, self.size, self.size)
pixbuf.fill(0x00000000)
self.cache[face + '_border'].composite(pixbuf, 0, 0, self.size, self.size, 0, 0, 1, 1, gtk.gdk.INTERP_NEAREST, 255)
if face.startswith('front') and self.jpeg <> None:
self.cache['jpeg'].composite(pixbuf, 11, 11, self.size-22, self.size-22, 11, 11, 1, 1, gtk.gdk.INTERP_NEAREST, 255)
#self.cache[face + '_border'].composite(pixbuf, 0, 0, self.size, self.size, 0, 0, 1, 1, gtk.gdk.INTERP_BILINEAR, 255)
#self.cache[text + '_text'].composite(pixbuf, 11, 11, self.size-22, self.size-22, 11, 11, 1, 1, gtk.gdk.INTERP_NEAREST, 255)
return pixbuf
def set_border(self, stroke_color, fill_color):
self.props['front_border'].update({'fill_color':fill_color, 'stroke_color':stroke_color})
self.cache['front_border'] = self._read_icon_data(self.props['front_border'])
self.cache['front'] = self.build_face('front')
self.current_pixbuf = self.cache['front']
self.queue_draw()
def set_highlight(self, status, mouse = False):
if self.flipped:
if mouse:
return
if status:
self.current_pixbuf = self.cache['front_h']
else:
self.current_pixbuf = self.cache['front']
else:
if status:
self.current_pixbuf = self.cache['back_h']
else:
self.current_pixbuf = self.cache['back']
self.queue_draw()
def flip(self):
if self.build_all or self.pprops.has_key('front_border'):
self.cache['front_border']= self._read_icon_data(self.props['front_border'])
if self.build_all or self.pprops.has_key('front_h_border'):
self.cache['front_h_border']= self._read_icon_data(self.props['front_h_border'])
if self.build_all or self.pprops.has_key('front_text'):
text = self._read_icon_data(self.props['front_text'])
self.cache['front_text'] = text.scale_simple(self.size-22, self.size-22, gtk.gdk.INTERP_BILINEAR)
del text
self.front_layout = self.get_text_layout(self.props['front_text'].get('card_text', ''), self.size-11)
self.front_layout_position = (self.size -(self.front_layout.get_size()[1]/1000))/2
self.current_layout = self.front_layout
self.current_layout_position = self.front_layout_position
self.current_text_color = self.props['front_text'].get('text_color','#c7c8cc')
if self.jpeg <> None:
pixbuf_t = gtk.gdk.pixbuf_new_from_file(self.jpeg)
# pixbuf_t = pixbuf_t.add_alpha(True,chr(255),chr(255),chr(255))
self.cache['jpeg']= pixbuf_t.scale_simple(self.size-22, self.size-22, gtk.gdk.INTERP_BILINEAR)
del pixbuf_t
if self.cache.has_key('front_border') or self.cache.has_key('front_text'):
self.cache['front'] = self.build_face('front')
if self.cache.has_key('front_h_border') or self.cache.has_key('front_text'):
self.cache['front_h'] = self.build_face('front_h')
if not self.flipped:
self.current_pixbuf = self.build_face('front')
self.flipped = True
self.queue_draw()
while gtk.events_pending():
gtk.main_iteration()
def flop(self):
self.current_pixbuf = self.build_face('back')
self.current_layout = self.back_layout
self.current_layout_position = self.back_layout_position
self.current_text_color = self.props['back_text'].get('text_color','#c7c8cc')
self.flipped = False
self.queue_draw()
def is_flipped(self):
return self.flipped
def get_id(self):
return self.id
def get_cache(self):
return self.cache
def reset(self):
if self.flipped:
fill_color = self.default_props.get('front_border').get('fill_color')
stroke_color = self.default_props.get('front_border').get('stroke_color')
self.set_border(fill_color, stroke_color)
self.flop()
def get_text_layout(self, text, size):
if self.size == 184:
font_sizes = [50,40,26,20,17,13,11,8]
elif self.size == 145:
font_sizes = [45,28,20,16,13,11,9,8]
elif self.size == 119:
font_sizes = [30,24,16,13,10,8,8,8]
# Set font size considering string length
if len(text) <= 8:
font_size = font_sizes[len(text)-1]
else:
font_size = 8
# Set Pango context and Pango layout
context = self.create_pango_context()
layout = self.create_pango_layout(text)
desc = pango.FontDescription(' bold '+str(font_size))
layout.set_font_description(desc)
layout.set_alignment(pango.ALIGN_CENTER)
layout.set_width(size*1000)
return layout
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