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import pygtk
pygtk.require('2.0')
import gtk
import gobject
import os
import os.path
import pickle
from math import atan2, pi
import sys
from sprites import *
from turtlesetup import *
import logo
import turtle
from sugar.datastore import datastore
WIDTH=1200
HEIGHT=780
DEGTOR = 2*pi/360
gc = None
area = None
window = None
draggroup = None
dragpos = (0,0)
current_category = None
category_spr = None
bgcolor = None
block_operation = None
selected_block = None
select_mask = None
firstkey = False
turtlecanvas = None
status_spr = None
turtle_spr = None
hidden_palette_icon = None
selbuttons = None
load_save_folder = None
save_file_name = None
#
# Button Press
#
def buttonpress_cb(win, event):
global draggroup, dragpos, block_operation, selected_block
window.grab_focus()
block_operation = 'click'
if selected_block!=None: unselect()
status_spr.setlayer(400)
pos = xy(event)
x,y = pos
spr = findsprite(pos)
if spr==None: return True
if spr.type == 'selbutton':
select_category(spr)
elif spr.type == 'tool':
tooldispatch(spr)
elif spr.type == 'category':
block_selector_pressed(x,y)
elif spr.type == 'block':
block_pressed(event,x,y,spr)
elif spr.type == 'turtle':
turtle_pressed(x,y)
return True
def block_pressed(event,x,y,spr):
global draggroup, dragpos, block_operation
dragpos = x-spr.x,y-spr.y
draggroup = findgroup(spr)
for b in draggroup:
b.setlayer(2000)
disconnect(spr)
def turtle_pressed(x,y):
global draggroup, dragpos, block_operation
dx,dy = x-turtle_spr.x-30,y-turtle_spr.y-30
if dx*dx+dy*dy > 200: dragpos = ('turn', turtle.heading-atan2(dy,dx)/DEGTOR,0)
else: dragpos = ('move', x-turtle_spr.x,y-turtle_spr.y)
draggroup = [turtle_spr]
def block_selector_pressed(x,y):
if category_spr.image==hidden_palette_icon:
for i in selbuttons: i.setlayer(800)
select_category(selbuttons[0])
else:
proto = get_proto_from_category(x,y)
if proto==None: return
if proto!='hide': new_block_from_category(proto,x,y)
else:
for i in selbuttons: i.hide()
category_spr.setshape(hidden_palette_icon)
def new_block_from_category(proto,x,y):
global draggroup, dragpos, block_operation
block_operation = 'new'
if proto == None: return True
newspr = Sprite(x-20,y-20,proto.image)
newspr.setlayer(2000)
dragpos = 20,20
newspr.type = 'block'
newspr.proto = proto
if newspr.proto.name == 'number': newspr.label=100
newspr.connections = [None]*len(proto.docks)
for i in range(len(proto.defaults)):
dock = proto.docks[i+1]
numproto = blockproto('number')
numdock = numproto.docks[0]
nx,ny = newspr.x+dock[2]-numdock[2],newspr.y+dock[3]-numdock[3]
argspr = Sprite(nx,ny,numproto.image)
argspr.type = 'block'
argspr.proto = numproto
argspr.label = str(proto.defaults[i])
argspr.setlayer(2000)
argspr.connections = [newspr,None]
newspr.connections[i+1] = argspr
draggroup = findgroup(newspr)
def get_proto_from_category(x,y):
# if current_category.mask == None: return current_category.blockprotos[(y-100)/30]
dx,dy = x-category_spr.x, y-category_spr.y,
pixel = getpixel(current_category.mask,dx,dy)
index = ((pixel%256)>>3)-1
# print hex(pixel),index
if index==0: return 'hide'
index-=1
if index>len(current_category.blockprotos): return None
return current_category.blockprotos[index]
def select_category(spr):
global current_category
if current_category != None:
current_category.setshape(current_category.offshape)
spr.setshape(spr.onshape)
current_category = spr
category_spr.setshape(spr.group)
#
# Mouse move
#
def move_cb(win, event):
global block_operation
if draggroup == None: return True
block_operation = 'move'
spr = draggroup[0]
x,y = xy(event)
if spr.type=='block':
dragx, dragy = dragpos
dx,dy = x-dragx-spr.x,y-dragy-spr.y
for b in draggroup:
b.move((b.x+dx, b.y+dy))
elif spr.type=='turtle':
type,dragx,dragy = dragpos
if type == 'move':
dx,dy = x-dragx-spr.x,y-dragy-spr.y
spr.move((spr.x+dx, spr.y+dy))
else:
dx,dy = x-spr.x-30,y-spr.y-30
turtle.seth(int(dragx+atan2(dy,dx)/DEGTOR+5)/10*10)
return True
#
# Button release
#
def buttonrelease_cb(win, event):
global draggroup, selected_block,firstkey
if draggroup == None: return True
spr = draggroup[0]
x,y = xy(event)
if spr.type == 'turtle':
turtle.xcor = turtle_spr.x-turtlecanvas.x-turtle.width/2+30
turtle.ycor = turtle.height/2-turtle_spr.y+turtlecanvas.y-30
turtle.move_turtle()
draggroup = None
return True
if block_operation=='move' and category_spr.hit((x,y)):
for b in draggroup: b.hide()
draggroup = None
return True
snap_to_dock(draggroup)
for b in draggroup: b.setlayer(650)
draggroup = None
if block_operation=='click':
if spr.proto.name=='number':
selected_block = spr
select_mask.move((spr.x-6,spr.y-6))
select_mask.setlayer(660)
firstkey = True
else: run_stack(spr)
return True
def snap_to_dock(group):
d=200
me = draggroup[0]
for mydockn in range(len(me.proto.docks)):
for you in blocks():
if you in group: continue
for yourdockn in range(len(you.proto.docks)):
thisxy = dock_dx_dy(you,yourdockn,me,mydockn)
if magnitude(thisxy)>d: continue
d=magnitude(thisxy)
bestxy=thisxy
bestyou=you
bestyourdockn=yourdockn
bestmydockn=mydockn
if d<200:
for b in group: b.move((b.x+bestxy[0],b.y+bestxy[1]))
me.connections[bestmydockn]=bestyou
bestyou.connections[bestyourdockn]=me
def dock_dx_dy(block1,dock1n,block2,dock2n):
if block1.connections[dock1n] != None: return (100,100)
if block2.connections[dock2n] != None: return (100,100)
dock1 = block1.proto.docks[dock1n]
dock2 = block2.proto.docks[dock2n]
d1type,d1dir,d1x,d1y=dock1[0:4]
d2type,d2dir,d2x,d2y=dock2[0:4]
if block1==block2: return (100,100)
if d1type!=d2type: return (100,100)
if d1dir==d2dir: return (100,100)
return (block1.x+d1x)-(block2.x+d2x),(block1.y+d1y)-(block2.y+d2y)
#
# Repaint
#
def expose_cb(win, event):
# gc.set_foreground(bgcolor)
# area.draw_rectangle(gc, True, category_spr.x, 0, category_spr.width, HEIGHT)
# area.draw_rectangle(gc, True, 100, 100, 100, 100)
redrawsprites()
return True
#
# Keyboard, new, load, save
#
def keypress_cb(area, event):
global firstkey
keyname = gtk.gdk.keyval_name(event.keyval)
# print keyname
if (event.get_state()>k.gdk.CONTROL_MASK):
if keyname=="s": save_file()
if keyname=="k": clear_journal()
return True
if selected_block==None: return False
keyname = gtk.gdk.keyval_name(event.keyval)
if keyname in ['minus', 'period']: keyname = {'minus': '-', 'period': '.'}[keyname]
if len(keyname)>1: return True
oldnum = selected_block.label
if firstkey: newnum = numcheck(keyname,'0')
else: newnum = oldnum+keyname
selected_block.setlabel(numcheck(newnum,oldnum))
firstkey = False
return True
def numcheck(new, old):
if new in ['-', '.', '-.']: return new
if new=='.': return '0.'
try: float(new); return new
except ValueError,e : return old
def unselect():
global selected_block
if selected_block.label in ['-', '.', '-.']: select_block.setlabel('0')
select_mask.hide()
selected_block = None
def new_project():
global save_file_name
for b in blocks(): b.hide()
turtlecanvas.setlayer(600)
toolsprite('hideshow').setshape(toolsprs['hideshow'].offshape)
turtle.clearscreen()
save_file_name = None
def load_file():
'''Pop a load file dialog to allow the user to pick a .ta file to load. Guess that a .png file with the same name resides in the same directory and try to load that too.'''
global save_file_name
fname = get_load_name()
if fname==None: return
if fname[-3:]=='.ta': fname=fname[0:-3]
load_files(fname+'.ta', fname+'.png')
save_file_name = os.path.basename(fname)
def load_files(ta_file, png_file=''):
'''Load the given TA code file and optional starting image as png file into a new project.'''
f = open(ta_file, "r")
data = pickle.load(f)
f.close()
new_project()
read_data(data)
try:
load_pict(png_file)
except:
'''the picture not loading is OK'''
print "load_files: picture didn't load"
pass
turtlecanvas.inval()
def get_load_name():
dialog = gtk.FileChooserDialog("Load...", None,
gtk.FILE_CHOOSER_ACTION_OPEN,
(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,gtk.STOCK_OPEN, gtk.RESPONSE_OK))
dialog.set_default_response(gtk.RESPONSE_OK)
return do_dialog(dialog)
def read_data(data):
blocks = []
for b in data:
if b[1]=='turtle': load_turtle(b)
else: spr = load_spr(b); blocks.append(spr)
for i in range(len(blocks)):
cons=[]
for c in data[i][4]:
if c==None: cons.append(None)
else: cons.append(blocks[c])
blocks[i].connections = cons
def load_spr(b):
btype, label = b[1],None
if type(btype)==type((1,2)): btype, label = btype
proto = blockproto(btype)
spr = Sprite(b[2]+turtlecanvas.x,b[3]+turtlecanvas.y, proto.image)
spr.type = 'block'
spr.proto = proto
if label!=None: spr.label=label
spr.setlayer(650)
return spr
def load_turtle(b):
id, name, xcor, ycor, heading, color, shade, pensize = b
turtle.setxy(xcor, ycor)
turtle.seth(heading)
turtle.setcolor(color)
turtle.setshade(shade)
turtle.setpensize(pensize)
def load_pict(fname):
pict = gtk.gdk.pixbuf_new_from_file(fname)
turtlecanvas.image.draw_pixbuf(gc, pict, 0, 0, 0, 0)
def save_file():
'''Pop a save file dialog to allow the user to pick a filename to save their project. Also saves the current art as a .png file with the same name.'''
global save_file_name
fname = get_save_name()
if fname==None: return
if fname[-3:]=='.ta': fname=fname[0:-3]
save_data(fname+".ta")
save_pict(fname+".png")
save_file_name = os.path.basename(fname)
def get_save_name():
dialog = gtk.FileChooserDialog("Save..", None,
gtk.FILE_CHOOSER_ACTION_SAVE,
(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,gtk.STOCK_SAVE, gtk.RESPONSE_OK))
dialog.set_default_response(gtk.RESPONSE_OK)
if save_file_name!=None: dialog.set_current_name(save_file_name+'.ta')
return do_dialog(dialog)
def save_data(fname):
'''Writes the TurtleArt code to the given filename.'''
f = file(fname, "w")
bs = blocks()
data = []
for i in range(len(bs)): bs[i].id=i
for b in bs:
name = b.proto.name
if name=='number': name=(name,b.label)
connections = [get_id(x) for x in b.connections]
data.append((b.id,name,b.x-turtlecanvas.x,b.y-turtlecanvas.y,connections))
data.append((-1,'turtle',
turtle.xcor,turtle.ycor,turtle.heading,
turtle.color,turtle.shade,turtle.pensize))
pickle.dump(data,f)
f.close()
def save_pict(fname):
'''Writes the current art to the given filename.'''
tc = turtlecanvas
pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, tc.width, tc.height)
pixbuf.get_from_drawable(tc.image, tc.image.get_colormap(), 0, 0, 0, 0, tc.width, tc.height)
pixbuf.save(fname, 'png')
def get_id(x):
if x==None: return None
return x.id
def do_dialog(dialog):
global load_save_folder
result = None
filter = gtk.FileFilter()
filter.add_pattern("*.ta")
filter.set_name("Turtle Art")
dialog.add_filter(filter)
dialog.set_current_folder(load_save_folder)
response = dialog.run()
if response == gtk.RESPONSE_OK:
result = dialog.get_filename()
load_save_folder = dialog.get_current_folder()
dialog.destroy()
return result
def clear_journal():
jobjects, total_count = datastore.find({'activity': 'org.laptop.TurtleArtActivity'})
print 'found', total_count, 'entries'
for jobject in jobjects[:-1]:
print jobject.object_id
datastore.delete(jobject.object_id)
#
# Block utilities
#
def run_stack(spr):
top = find_top_block(spr)
logo.run_blocks(top, blocks())
gobject.idle_add(logo.doevalstep)
def disconnect(b):
if b.connections[0]==None: return
b2=b.connections[0]
b2.connections[b2.connections.index(b)] = None
b.connections[0] = None
def findgroup(b):
group=[b]
for b2 in b.connections[1:]:
if b2!=None: group.extend(findgroup(b2))
return group
def find_top_block(spr):
while spr.connections[0]!=None: spr=spr.connections[0]
return spr
def magnitude(pos):
x,y = pos
return x*x+y*y
def xy(event): return map(int, event.get_coords())
def blocks(): return [spr for spr in spritelist() if spr.type == 'block']
#
# Toolbar
#
def tooldispatch(spr):
if spr.blocktype == 'hideshow': hideshow_blocks(spr)
elif spr.blocktype == 'eraser': runtool(spr,turtle.clearscreen)
elif spr.blocktype == 'stopit': logo.step = just_stop()
def just_stop(): yield False
def runtool(spr,cmd):
spr.setshape(spr.onshape)
cmd()
gobject.timeout_add(250,spr.setshape,spr.offshape)
def hideshow_blocks(spr):
if spr.image==spr.offshape:
for b in blocks(): b.setlayer(100)
spr.setshape(spr.onshape)
else:
for b in blocks(): b.setlayer(650)
spr.setshape(spr.offshape)
turtlecanvas.inval()
#
# Startup
#
def init(top_window, path, parentwindow=None):
global gc, area, category_spr, bgcolor,turtlecanvas, select_mask
global status_spr, turtle_spr, selbuttons, hidden_palette_icon
global base_path, load_save_folder, window
window = top_window
base_path = path
if parentwindow is None:
parentwindow = top_window
# remove any children of the window that Sugar may have added
#for widget in window.get_children(): window.remove(widget)
#window.set_title("TurteArt")
window.connect("destroy", lambda w: gtk.main_quit())
window.set_flags(gtk.CAN_FOCUS)
window.set_size_request(WIDTH, HEIGHT)
window.add_events(gtk.gdk.BUTTON_PRESS_MASK)
window.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
window.add_events(gtk.gdk.POINTER_MOTION_MASK)
window.add_events(gtk.gdk.KEY_PRESS_MASK)
window.connect("expose-event", expose_cb)
window.connect("button-press-event", buttonpress_cb)
window.connect("button-release-event", buttonrelease_cb)
window.connect("motion-notify-event", move_cb)
window.connect("key_press_event", keypress_cb)
window.show()
parentwindow.show_all()
area = window.window
cursor_pix = gtk.gdk.pixbuf_new_from_file(os.path.join(base_path, 'arrow.gif'))
cursor = gtk.gdk.Cursor(area.get_display(), cursor_pix, 10, 0)
area.set_cursor(cursor)
gc = area.new_gc()
setspritecontext(window,area,gc)
cm = gc.get_colormap()
bgcolor = cm.alloc_color('#fff8de')
# who = Sprite(0,0,gtk.gdk.pixbuf_new_from_file('fullscreen.gif'))
# who.type = 'bg'
# who.setlayer(700)
turtlecanvas = Sprite(0,0,gtk.gdk.Pixmap(area,WIDTH,HEIGHT,-1))
turtlecanvas.type = 'canvas'
turtlecanvas.setlayer(600)
select_mask = Sprite(100,100,gtk.gdk.pixbuf_new_from_file(os.path.join(base_path, 'masknumber.gif')))
select_mask.type = 'selectmask'
status_spr = Sprite(0,790,gtk.gdk.pixbuf_new_from_file(os.path.join(base_path, 'status.gif')),True)
status_spr.type = 'status'
status_spr.setlayer(400)
turtle.shapelist = [gtk.gdk.pixbuf_new_from_file(os.path.join(base_path, 'shapes','t'+str(i)+'.gif'))
for i in range(36)]
turtle_spr = Sprite(100,100,turtle.shapelist[0])
turtle_spr.type = 'turtle'
turtle_spr.setlayer(630)
turtle.init(window,turtlecanvas, turtle_spr, bgcolor)
hidden_palette_icon = gtk.gdk.pixbuf_new_from_file(os.path.join(base_path, 'toolbar','blocks-.gif'))
category_spr, selbuttons, default_category = setup_selectors(base_path)
# select_category(default_category)
for i in selbuttons: i.hide()
category_spr.setshape(hidden_palette_icon)
setup_toolbar()
logo.turtle = turtle
logo.turtle_spr = turtle_spr
logo.stopsign = toolsprite('stopit')
logo.status = status_spr
logo.init()
load_save_folder = os.path.join(base_path,'samples')
def main():
win = gtk.Window(gtk.WINDOW_TOPLEVEL)
init(win, os.path.abspath('.'))
gtk.main()
return 0
if __name__ == "__main__":
main()
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