/usr/share/pyshared/TurtleArt/taexportlogo.py is in turtleart 98-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 | #Copyright (c) 2008-10, 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.
IGNORE = ["hideblocks", "showblocks", "fullscreen", "polar", "cartesian",
"sandwichbottom", "id"]
import math
from tautils import walk_stack
try:
from sugar.datastore import datastore
except:
pass
def save_logo(tw):
""" We need to set up the Turtle Art color palette and color processing. """
color_processing = "\
to tasetpalette :i :r :g :b :myshade \r\
make \"s ((:myshade - 50) / 50) \r\
ifelse lessp :s 0 [ \r\
make \"s (1 + (:s *0.8)) \r\
make \"r (:r * :s) \r\
make \"g (:g * :s) \r\
make \"b (:b * :s) \r\
] [ \
make \"s (:s * 0.9) \r\
make \"r (:r + ((99-:r) * :s)) \r\
make \"g (:g + ((99-:g) * :s)) \r\
make \"b (:b + ((99-:b) * :s)) \r\
] \
setpalette :i (list :r :g :b) \r\
end \r\
\
to rgb :myi :mycolors :myshade \r\
make \"myr first :mycolors \r\
make \"mycolors butfirst :mycolors \r\
make \"myg first :mycolors \r\
make \"mycolors butfirst :mycolors \r\
make \"myb first :mycolors \r\
make \"mycolors butfirst :mycolors \r\
tasetpalette :myi :myr :myg :myb :myshade \r\
output :mycolors \r\
end \r\
\
to processcolor :mycolors :myshade \r\
if emptyp :mycolors [stop] \r\
make \"i :i + 1 \r\
processcolor (rgb :i :mycolors :myshade) :myshade \r\
end \r\
\
to tasetshade :shade \r\
make \"myshade modulo :shade 200 \r\
if greaterp :myshade 99 [make \"myshade (199-:myshade)] \r\
make \"i 7 \r\
make \"mycolors :colors \r\
processcolor :mycolors :myshade \r\
end \r\
\
to tasetpencolor :c \r\
make \"color (modulo (round :c) 100) \r\
setpencolor :color + 8 \r\
end \r\
\
make \"colors [ \
99 0 0 99 5 0 99 10 0 99 15 0 99 20 0 \
99 25 0 99 30 0 99 35 0 99 40 0 99 45 0 \
99 50 0 99 55 0 99 60 0 99 65 0 99 70 0 \
99 75 0 99 80 0 99 85 0 99 90 0 99 95 0 \
99 99 0 90 99 0 80 99 0 70 99 0 60 99 0 \
50 99 0 40 99 0 30 99 0 20 99 0 10 99 0 \
0 99 0 0 99 5 0 99 10 0 99 15 0 99 20 \
0 99 25 0 99 30 0 99 35 0 99 40 0 99 45 \
0 99 50 0 99 55 0 99 60 0 99 65 0 99 70 \
0 99 75 0 99 80 0 99 85 0 99 90 0 99 95 \
0 99 99 0 95 99 0 90 99 0 85 99 0 80 99 \
0 75 99 0 70 99 0 65 99 0 60 99 0 55 99 \
0 50 99 0 45 99 0 40 99 0 35 99 0 30 99 \
0 25 99 0 20 99 0 15 99 0 10 99 0 5 99 \
0 0 99 5 0 99 10 0 99 15 0 99 20 0 99 \
25 0 99 30 0 99 35 0 99 40 0 99 45 0 99 \
50 0 99 55 0 99 60 0 99 65 0 99 70 0 99 \
75 0 99 80 0 99 85 0 99 90 0 99 95 0 99 \
99 0 99 99 0 90 99 0 80 99 0 70 99 0 60 \
99 0 50 99 0 40 99 0 30 99 0 20 99 0 10] \r\
make \"shade 50 \r\
tasetshade :shade \r"
bs = tw.just_blocks()
code = ""
stack_count = 0
show = 0
# These flags are used to trigger the prepending of additional procedures.
random = False
fillscreen = False
setcolor = False
setxy = False
pensize = False
setpensize = False
arc = False
heap = False
write = False
minus = False
division = False
image = False
"""
Walk through the code, substituting UCB Logo for Turtle Art primitives.
"""
for b in bs:
this_stack = ""
data = walk_stack(tw, b)
# We need to catch several special cases: stacks, random, etc.
stack = False
namedstack = False
namedbox = False
refstack = False
refbox = False
myvar = ""
for d in data:
if type(d) == type((1, 2)):
(d, b) = d
if type(d) is float:
if namedbox:
myvar += str(d)
myvar += " "
elif write:
this_stack += "labelsize "
this_stack += str(d)
write = False
else:
this_stack += str(d)
elif show == 2:
# Use title for Journal objects
if d[0:8] == '#smedia_':
try:
dsobject = datastore.get(d[8:])
this_stack += dsobject.metadata['title']
dsobject.destroy()
except:
this_stack += str(d)
else:
this_stack += str(d)
show = 0
else:
# Translate some Turtle Art primitives into UCB Logo
if namedstack:
this_stack += "to "
this_stack += d[2:].replace(" ","_")
this_stack += "\r"
stack = True
namedstack = False
elif namedbox:
if d[0:2] == "#s":
this_stack += "make \""
this_stack += d[2:].replace(" ","_")
this_stack += " "
this_stack += myvar
namedbox = False
myvar = ""
else:
myvar += d
elif refstack:
this_stack += d[2:].replace(" ","_")
this_stack += " "
refstack = False
elif refbox:
this_stack += ":"
this_stack += d[2:].replace(" ","_")
refbox = False
elif d == "stack":
refstack = True
elif d == "box":
refbox = True
elif d == "storeinbox":
namedbox = True
elif d == "storeinbox1":
this_stack += "make \"box1"
elif d == "box1":
this_stack += ":box1"
elif d == "storeinbox2":
this_stack += "make \"box2"
elif d == "box2":
this_stack += ":box2"
elif d == "shade":
this_stack += ":shade"
elif d == "setshade":
setcolor = True
this_stack += "tasetshade"
elif d == "color":
this_stack += "pencolor"
elif d == "nop":
this_stack += " "
elif d == "start":
this_stack += "to start\r"
stack = True
elif d == "nop1":
this_stack += "to stack1\r"
stack = True
elif d == "nop2":
this_stack += "to stack2\r"
stack = True
elif d == "nop3":
namedstack = True
elif d == "stopstack":
this_stack += "stop"
elif d == "clean":
this_stack += "clearscreen"
elif d == "setxy":
setxy = True
this_stack += "tasetxy"
elif d == "color":
this_stack += ":color"
elif d == "plus":
this_stack += "sum"
elif d == "setcolor":
setcolor = True
this_stack += "tasetpencolor"
elif d == "fillscreen":
fillscreen = True
setcolor = True
this_stack += "tasetbackground"
elif d == "random":
random = True
this_stack += "tarandom"
elif d == "pensize":
pensize = True
this_stack += "tapensize"
elif d == "setpensize":
setpensize = True
this_stack += "tasetpensize"
elif d == "arc":
arc = True
this_stack += "taarc"
elif d == "pop":
heap = True
this_stack += "tapop"
elif d == "push":
heap = True
this_stack += "tapush"
elif d == "heap":
heap = True
this_stack += "taprintheap"
elif d == "emptyheap":
heap = True
this_stack += "taclearheap"
elif d == "kbinput":
this_stack += "make \"keyboard readchar"
elif d == "keyboard":
this_stack += ":keyboard"
elif d == 'insertimage':
image = True
elif image:
# Skip this arg
image = 2
elif image == 2:
# Skip this arg
image = False
elif d[0:2] == "#s":
# output single characters as a string
if len(d[2:]):
this_stack += "\""
this_stack += d[2:]
# make a sentence out of everything else
else:
this_stack += "sentence "
this_stack += d[2:].replace("\s"," \"")
this_stack += "\r"
elif d == "write":
this_stack += "label"
write = True
elif d == 'show' or d == 'showaligned':
this_stack += "label"
show = 1
elif d == "minus2":
this_stack += "taminus"
minus = True
elif d == "division":
this_stack += "quotient"
elif d == "lpos":
this_stack += str(-tw.canvas.width/(tw.coord_scale*2))
elif d == "rpos":
this_stack += str(tw.canvas.width/(tw.coord_scale*2))
elif d == "bpos":
this_stack += str(-tw.canvas.height/(tw.coord_scale*2))
elif d == "tpos":
this_stack += str(tw.canvas.height/(tw.coord_scale*2))
elif d in IGNORE:
this_stack += " "
elif show == 1 and d[0:2] == "#s":
this_stack += d[2:]
# We don't handle depreciated 'template' blocks
else:
this_stack += d
this_stack += " "
if stack:
stack = False
# if it is not a stack, we need to add a "to ta#" label
elif len(data) > 0:
this_stack = "to ta" + str(stack_count) + "\r" + this_stack
stack_count += 1
if len(data) > 0:
code += this_stack
code += "\rend\r"
# We need to define some additional procedures.
if minus: # Logo minus only takes one argument.
code = "to taminus :y :x\routput sum :x minus :y\rend\r" + code
if random: # to avoid negative numbers
code = "to tarandom :min :max\r" + \
"output (random (:max - :min)) + :min\rend\r" + code
if fillscreen: # Set shade than background color
code = "to tasetbackground :color :shade\r" + \
"tasetshade :shade\rsetbackground :color\rend\r" + code
if setcolor: # Load the Turtle Art color palette.
code = color_processing + code
if setpensize: # Set int of pensize
code = "to tasetpensize :a\rsetpensize round :a\rend\r" + code
if pensize: # Return only the first argument.
code = "to tapensize\routput first round pensize\rend\r" + code
if setxy: # Swap and round arguments
code = "to tasetxy :x :y\rpenup\rsetxy :x :y\rpendown\rend\r" + code
if arc: # Turtle Art 'arc' needs to be redefined.
c = (2 * math.pi)/360
code = "to taarc :a :r\rrepeat round :a [right 1 forward (" + \
str(c) + " * :r)]\rend\r" + code
if heap: # Add psuedo 'push' and 'pop'
code = "to tapush :foo\rmake \"taheap fput :foo :taheap\rend\r" + \
"to tapop\rif emptyp :taheap [stop]\rmake \"tmp first :taheap\r" + \
"make \"taheap butfirst :taheap\routput :tmp\rend\r" + \
"to taclearheap\rmake \"taheap []\rend\r" + \
"to taprintheap \rprint :taheap\rend\r" + \
"make \"taheap []\r" + code
code = "window\r" + code
return code
|