#Copyright (c) 2008-9, Walter Bender
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#The above copyright notice and this permission notice shall be included in
#all copies or substantial portions of the Software.
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#THE SOFTWARE.
import tawindow
import talogo
from sugar.activity import activity
from sugar.datastore import datastore
import os.path
import subprocess
from talogo import get_pixbuf_from_journal
from tahoverhelp import *
from gettext import gettext as _
def save_html(self, tw, embed_flag=True):
self.embed_images = embed_flag
try:
self.datapath = os.path.join(activity.get_activity_root(), "instance")
except:
# early versions of Sugar (656) didn't support get_activity_root()
self.datapath = os.path.join( \
os.environ['HOME'], \
".sugar/default/org.laptop.TurtleArtActivity/instance")
# dictionary defines the html wrappers around template elements
# start of block, end of block
self.html_glue = {
'doctype': ("\n", ""),
'html': ("\n", "\n"),
'head': ("\n\n", \
"\n"),
'meta': ("\n", ""),
'title': ("", "\n"),
'style': ("\n"),
'body': ("\n", "\n\n"),
'div': ("\n", "
\n"),
'slide': ("\n\n"),
'h1': ("", "
\n"),
'table': ("\n"),
'tr': ("\n", "
\n"),
'td': ("\n", \
"\n | \n"),
'img': ("![\"Image\"](\"image",\)
\n"),
'img2': ("![\"Image\"](\"image",)
\n"),
'ul': ("\n"),
'li': ("| ", " |
\n") }
if self.embed_images == True:
# store images in-line as base64
self.html_glue['img'] = ("![\"Image\"](\"data:image/png;base64,\n",)
\n")
self.html_glue['img2'] = ("\n")
bs = tawindow.blocks(tw)
code = ""
self.imagecount = 0 # incremented for each image
slidecount = 0 # incremented for each template (slide)
for b in bs:
this_stack = ""
data = walk_stack(self, tw, b)
show = 0
tp1, tp2, tp3, tp8, tp6, tp7 = 0,0,0,0,0,0
for d in data:
if type(d) is float or type(d) is int:
d = str(d) # convert floats and ints to strings
# transalate some Turtle Art blocks into HTML
# show and template blocks
# ignores most turtle graphics
if d == "show": # show bricks take one argument
show = 1
elif d == "container": # containers hold a media block
show = 2
elif show > 0: # process the argument to show or container
if show == 1: # could be media or a string
if d[0:8] == '#smedia_': # show media
this_stack += add_image(self,d)
elif d[0:8] == '#sdescr_': # show description
this_stack += add_description(self,d)
elif d[0:2] == '#s': # show a string
this_stack += d[2:]
show = 0
else:
this_stack += d
show = 0
# process slide templates
elif d == "tp1":
tp1 = 1
elif d == "tp2":
tp2 = 1
elif d == "tp3":
tp3 = 8
elif d == 'tp8':
tp8 = 1
elif d == "tp6":
tp6 = 1
elif d == "tp7":
tp7 = 1
elif tp3 > 0: # bullets
if tp3 == 8: # title comes first
tmp = self.html_glue['slide'][0] + \
str(slidecount) + \
self.html_glue['slide'][1] + \
self.html_glue['div'][0] + \
self.html_glue['h1'][0] + \
d[2:] + \
self.html_glue['h1'][1] + \
self.html_glue['ul'][0]
bullets = 6
slidecount += 1
elif d[2:] != "": # process bullets
tmp = self.html_glue['li'][0] + d[2:] + \
self.html_glue['li'][1]
this_stack += tmp
tmp = ""
bullets -= 1
if bullets == 0:
this_stack += (self.html_glue['ul'][1] + \
self.html_glue['div'][1])
elif tp1 == 1 or tp2 == 1 or tp8 == 1 or\
tp6 == 1 or tp7 == 1:
# first time through, process title
this_stack += (self.html_glue['slide'][0] + \
str(slidecount) + \
self.html_glue['slide'][1] + \
self.html_glue['div'][0] + \
self.html_glue['h1'][0] + d[2:] + \
self.html_glue['h1'][1] + \
self.html_glue['table'][0])
if tp1 > 0: tp1 += 1
elif tp2 > 0: tp2 += 1
elif tp8 > 0: tp8 += 1
elif tp6 > 0: tp6 += 1
elif tp7 > 0: tp7 += 1
slidecount += 1
elif tp1 > 1 or tp6 > 1:
tmp = self.html_glue['tr'][0] + \
self.html_glue['td'][0]
if d[0:8] == '#smedia_':
tmp += (add_image(self,d) + \
self.html_glue['td'][1] + \
self.html_glue['td'][0] + \
add_description(self,d) + \
self.html_glue['td'][1] + \
self.html_glue['tr'][1])
elif d[0:8] == '#sdescr_':
tmp += (add_description(self,d) + \
self.html_glue['td'][1] + \
self.html_glue['tr'][1])
if tp1 > 1 or tp6 > 2:
this_stack += (tmp + self.html_glue['table'][1] + \
self.html_glue['div'][1])
tp1 = 0
tp6 = 0
else:
this_stack += tmp
tp6 += 1
elif tp8 > 1:
tmp = self.html_glue['tr'][0] + \
self.html_glue['td'][0]
if d[0:8] == '#smedia_':
tmp += (add_image(self,d) + \
self.html_glue['td'][1] + \
self.html_glue['tr'][1])
elif d[0:8] == '#sdescr_':
tmp += (add_description(self,d) + \
self.html_glue['td'][1] + \
self.html_glue['tr'][1])
this_stack += (tmp + self.html_glue['table'][1] + \
self.html_glue['div'][1])
tp8 = 0
elif tp2 > 1 or tp7 > 1:
if tp2 == 2 or tp7 == 2:
tmp = self.html_glue['tr'][0] + \
self.html_glue['td'][0]
else:
tmp += self.html_glue['td'][0]
if tp2 == 2:
saved_description = add_description(self,d)
if tp2 == 2 or tp7 == 2:
if d[0:8] == '#smedia_':
tmp += (add_image(self,d) + \
self.html_glue['td'][1])
elif d[0:8] == '#sdescr_':
tmp += (add_description(self,d) + \
self.html_glue['td'][1])
if tp2 > 1: tp2 += 1
elif tp7 > 1: tp7 += 1
elif tp2 == 3:
if d[0:8] == '#smedia_':
tmp += add_image(self,d)
elif d[0:8] == '#sdescr_':
tmp += add_description(self,d)
tmp += (self.html_glue['td'][1] + \
self.html_glue['tr'][1] + \
self.html_glue['tr'][0] + \
self.html_glue['td'][0])
tmp += saved_description
saved_desciption = ""
tmp += (self.html_glue['td'][1] + \
self.html_glue['td'][0])
tmp += (add_description(self,d) + \
self.html_glue['td'][1] + \
self.html_glue['tr'][1])
this_stack += (tmp + self.html_glue['table'][1] + \
self.html_glue['div'][1])
tp2 = 0
elif tp7 == 3:
if d[0:8] == '#smedia_':
tmp += add_image(self,d)
elif d[0:8] == '#sdescr_':
tmp += add_description(self,d)
tmp += (self.html_glue['td'][1] + \
self.html_glue['tr'][1] + \
self.html_glue['tr'][0])
tp7 += 1
elif tp7 == 4:
if d[0:8] == '#smedia_':
tmp += add_image(self,d)
elif d[0:8] == '#sdescr_':
tmp += add_description(self,d)
tmp += (self.html_glue['td'][1])
tp7 += 1
elif tp7 == 5:
if d[0:8] == '#smedia_':
tmp += add_image(self,d)
elif d[0:8] == '#sdescr_':
tmp += add_description(self,d)
tmp += (self.html_glue['td'][1] + \
self.html_glue['tr'][1])
this_stack += (tmp + self.html_glue['table'][1] + \
self.html_glue['div'][1])
tp7 = 0
if len(data) > 0:
code += this_stack
"""
if no show or template blocks were present, we've got no slides,
so save a screendump instead
"""
if slidecount == 0:
# save a screen dump instead
filename = os.path.join(self.datapath, 'image.png')
tawindow.save_pict(tw,filename)
# if the embed_images flag is True
# embed_images base64 into the html
if self.embed_images == True:
base64 = os.path.join(self.datapath, 'base64tmp')
cmd = "base64 <" + filename + " >" + base64
subprocess.check_call(cmd, shell=True)
f = open( base64, 'r')
imgdata = f.read()
f.close()
code += (self.html_glue['img'][0] + \
imgdata + \
self.html_glue['img'][1])
code += (self.html_glue['div'][0])
# get a json dump of the code
code += (tawindow.save_string(tw,False))
code += (self.html_glue['div'][1])
code = self.html_glue['doctype'][0] + \
self.html_glue['html'][0] + \
self.html_glue['head'][0] + \
self.html_glue['meta'][0] + \
self.html_glue['title'][0] + \
_("Turtle Art") + " " + tw.activity.metadata['title'] + \
self.html_glue['title'][1] + \
self.html_glue['style'][0] + \
self.html_glue['style'][1] + \
self.html_glue['head'][1] + \
self.html_glue['body'][0] + \
code + \
self.html_glue['body'][1] + \
self.html_glue['html'][1]
return code
def walk_stack(self, tw, spr):
top = tawindow.find_top_block(spr)
if spr == top:
# only walk the stack if the block is the top block
return talogo.run_blocks(tw.lc, top, tw.block_list.list, False)
else:
# not top of stack, then return empty list
return []
def add_image(self, d):
if d[8:] != "None":
try:
dsobject = datastore.get(d[8:])
pixbuf = get_pixbuf_from_journal(dsobject,400,300)
filename = os.path.join(self.datapath, 'image' + \
str(self.imagecount) + ".png")
pixbuf.save(filename, "png")
# if the embed_images flag is True
# embed images base64 into the html
if self.embed_images == True:
base64 = os.path.join(self.datapath, 'base64tmp')
cmd = "base64 <" + filename + " >" + base64
subprocess.check_call(cmd, shell=True)
f = open( base64, 'r')
imgdata = f.read()
f.close()
tmp = self.html_glue['img2'][0]
if self.embed_images == True:
tmp += imgdata
else:
tmp += str(self.imagecount)
self.imagecount += 1
tmp += self.html_glue['img2'][1]
return tmp
except:
return ""
return ""
def add_description(self, d):
# show description
if d[8:] != "None":
try:
dsobject = datastore.get(d[8:])
return dsobject.metadata['description']
except:
return ""
return ""