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authorWalter Bender <walter@sugarlabs.org>2010-08-12 17:57:55 (GMT)
committer Walter Bender <walter@sugarlabs.org>2010-08-12 17:57:55 (GMT)
commitc2937d9fdd30b1b896caf66851d6677924d07488 (patch)
treec242386fa59755d4adea7fb414b72466181a2a2e /TurtleArt/taexportlogo.py
parent98caa09b7eadbd14776b73f01095bc59cb39cc18 (diff)
reorg of module heirarchy
Diffstat (limited to 'TurtleArt/taexportlogo.py')
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diff --git a/TurtleArt/taexportlogo.py b/TurtleArt/taexportlogo.py
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+#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
+
+