def add_group(self,
name,
group_dir=None,
file_type=None,
select_list=True):
""" Add data file group
:name: group name
:group_dir: directory holding files
default: self.data_dir/name
:file_type: file type
default: "image"
"""
if group_dir is None:
group_dir = os.path.join(self.data_dir, name)
self.group_dir = group_dir
if file_type is None:
file_type = self.file_type
self.file_type = file_type
image_hash = None
image_files = None
select_image_hash = None
select_image_files = None
if file_type == "image":
""" Setup image hash for selection possibility
via SelectList """
SlTrace.lg(f"image_dir:{group_dir}")
image_hash = ImageHash(image_dir=group_dir)
image_files = image_hash.get_image_files()
if select_list:
select_image_hash = ImageHash(image_dir=self.group_dir)
select_image_files = select_image_hash.get_image_files()
data_file_group = DataFileGroup(name,
data_dir=group_dir,
file_type=file_type,
image_hash=image_hash,
image_files=image_files,
select_image_hash=select_image_hash,
select_image_files=select_image_files)
self.data_file_groups[name] = data_file_group
class KeyboardDraw(SelectWindow):
IT_FILE = "it_file" # image from file
IT_TEXT = "it_text" # image generated
def __init__(self,
master,
title=None,
kbd_master=None,
canvas=None,
draw_x=20,
draw_y=20,
draw_width=1500,
draw_height=1000,
kbd_win_x=0,
kbd_win_y=0,
kbd_win_width=350,
kbd_win_height=200,
side=100,
width=20,
hello_drawing_str=None,
with_screen_kbd=True,
show_help=True,
**kwargs):
""" Keyboard Drawing tool
:master: master
:kbd_master: screen keyboard master, if present
must be grid managed
default: create Toplevel
:draw_width: drawing window width default: 1500 pixels
:draw_height: drawing window height default: 1000
:kbd_win_x: screen keyboard initial x
:kbd_win_y: screen keyboard initial y
:kbd_win_width: screen keyboard width
:kbd_win_height: screen keyboard height
:canvas: base canvas
default: create 500x500
:side: starting line side length
default: 100
:width: starting line width
default: 20
:hello_drawing_str: Beginning display command string
default: HI...
:with_screen_kbd: Has screen keyboard control
default: True
:show_help: Show help text at beginning
default: True
"""
control_prefix = "KbdDraw"
self.x_cor = 0
self.y_cor = 0
self.heading = 0
self.color_current = "red"
self.color_changing = True
self.color_index = 0
super().__init__(master,
title=title,
control_prefix=control_prefix,
**kwargs)
self.cmd_pointer = None # marker pointer
if canvas is None:
canvas = tk.Canvas(master=master,
width=draw_width,
height=draw_height,
bd=2,
bg="white",
relief="ridge")
canvas.pack(expand=True, fill=tk.BOTH)
self.draw_width = draw_width
self.draw_height = draw_height
self.canv = canvas
self.canvas_width = draw_width # Fudge
self.canvas_height = draw_height # Fudge
self.canv.bind("<ButtonPress>", self.mouse_down)
self.cmd_proc = KbdCmdProc(self)
""" Setup our own, outside turtle, key processing """
self.bound_keys = {} # functions, bound to keys
self.master = master
self.side = side
self.current_width = width
self.do_trace = False # Set True to do debugging trace
self.do_trace = True
self.set_key_mapping()
canvas_width = self.canv.winfo_width()
canvas_height = self.canv.winfo_height()
x_start = int(-canvas_width / 2 + side)
y_start = int(canvas_height / 2 - side)
side = self.side
width = self.current_width
ostuff_x = x_start + side
ostuff_y = y_start - 6 * side
hi_stuff_x = ostuff_x + 5 * side
hi_stuff_y = ostuff_y + 1 * side
hi_side = side / 5
if hello_drawing_str == "BUILTIN":
hello_drawing_str = f"""
# Beginning screen pattern
# Add in Family
minus
line({side},{width}) # Set side, width
moveto({x_start},{y_start})
plus
setnewline();F;a;m;i;l;y;END
newline();a;l;e;x;END;image_file(family,alex);q
newline();d;e;c;l;a;n;END;image_file(family,declan);q
newline();a;v;e;r;y;END;image_file(family,avery);q
newline();c;h;a;r;l;i;e;END;image_file(family,charlie);q
### # Add in animals
### k
### plus
### k;Right;a;a
### k;Right;a:a
### k;Right;a;a
### k;Right;a;a
### k;Right;a;a
# A bit of other stuff
check
shorten();shorten();shorten()
newline();END;image_file(princesses,princess);q
image_file(other_stuff,batman)
image_file(other_stuff,baseball)
"""
hello_drawing_str += f"""
minus
# HI in middle of screen
shape(line)
marker(line)
shape(line)
line({hi_side},{width}) # Set side, width
moveto({hi_stuff_x},{hi_stuff_y})
w
plus
check
Down;Down;Down;Down;Down;Down;Down;Down
Up;Up;Up;Up; Right;Right; Up;Up;Up;Up
Down;Down;Down;Down;Down;Down;Down;Down
minus;Right;Right
plus
Up;Up;Up;Up;Up;Up;Up;Up
minus
line({side},{width}) # Set side, width
Down;Down;Right;plus
"""
"""
# Line under
minus
line({side},{4})
moveto({int(self.canvas_width/2-side)},{int(-self.canvas_height/2+side)})
plus
Left
t;=#ff0000;shape(rotate)
t;=#0ff000;shape()
t;=#00ff00;shape()
t;=#000ff0;shape()
t;=#0000ff;shape()
t;=#f0f0f0;shape()
t;=#af0f0f;shape(line)
t;=#0ff000;shape()
t;=#00ff00;shape()
t;=#000ff0;shape()
t;=#0000ff;shape()
line({side},{width}) # Set side,width to starting
w
check
"""
self.hello_drawing_str = hello_drawing_str
SlTrace.lg(f"hello_drawing_str evaluated:" f"\n{hello_drawing_str}")
# Rotating pattern of custom colors
self.custom_colors = []
self.setup_image_access()
self.moves_canvas_tags = [] # Init for canvas part of draw_undo
self.clear_all() # Setup initial settings
self.enlarge_fraction = .2 # Enlargement fraction
if with_screen_kbd:
if kbd_master is None:
kbd_master = tk.Toplevel()
self.kbd_master = kbd_master
self.screen_keyboard = ScreenKbdFlex(kbd_master,
on_kbd=self.do_key,
win_x=kbd_win_x,
win_y=kbd_win_y,
win_width=kbd_win_width,
win_height=kbd_win_height,
title="Let's Make a Drawing!")
self.screen_keyboard.to_top() # Just earlier to see problems
self.do_keys(self.hello_drawing_str)
self.screen_keyboard.to_top()
if show_help:
self.help()
def clear_all(self):
""" Clear screen
"""
self.cmd_proc.clear_all()
self.is_pendown_orig = True
self.is_pendown = self.is_pendown_orig # Drawing pen state
self.heading_orig = 0
self.heading = self.heading_orig # Current heading
self.side_orig = 100
self.side = self.side_orig # Default distance
self.current_width_orig = 2
self.current_width = self.current_width_orig # Current line width
self.photo_images = {} # Keeping references
""" Reset image group access to first file """
for name in self.image_group_names:
ifg = self.get_image_file_group(name)
ifg.set_file_index(-1)
self.x_cor = 0
self.y_cor = 0
def last_command(self):
if hasattr(self, "cmd_proc"):
return self.cmd_proc.last_command()
return None
def enable_image_update(self, enable=True):
""" Enable/Disable kbd image update
:enable: enable update default: True
"""
self.screen_keyboard.enable_image_update(enable)
def help(self):
""" Help message
"""
if hasattr(self, "cmd_proc"):
self.cmd_proc.help()
else:
SlTrace.lg("help is on the way")
def trace(self, tstring):
""" trace info (debugging) when we can't use select_trace
Place info on next line as a comment line
:tstring: trace string
"""
if self.do_trace:
SlTrace.lg(f"\n#{tstring}", "tracing")
def setup_image_access(self, image_dir=None):
""" Setup image access for markers
:image_dir: image file directory
"""
if image_dir is None:
image_dir = "./images" # Distribution choice
SlTrace.lg(f"Trying distibution image dir: {image_dir}")
if not os.path.exists(image_dir):
image_dir = "../../resource_lib/images"
SlTrace.lg(f"Using development image dir: {image_dir}")
self.image_type = KeyboardDraw.IT_FILE
self.image_group_names = [
"animals", "family", "princesses", "other_stuff"
]
self.image_group_index = len(self.image_group_names)
if self.image_group_index >= len(self.image_group_names):
self.image_group_index = 0
group_name = self.image_group_names[self.image_group_index]
self.ifh = DataFiles(data_dir=image_dir)
for name in self.image_group_names:
group_dir = os.path.join(image_dir, name)
self.ifh.add_group(name, group_dir=group_dir)
SlTrace.lg("Image Files")
data_files_dir = "../../resource_lib/images/animals"
image_files_dir = os.path.abspath(data_files_dir)
if not os.path.exists(image_files_dir):
SlTrace.lg(f'__file__:{__file__}')
src_dir = os.path.dirname(os.path.abspath(__file__))
SlTrace.lg(f"Assuming images are in src_dir")
SlTrace.lg(f'src_dir:{src_dir}')
prj_dir = os.path.dirname(src_dir)
SlTrace.lg(f'prj_dir:{prj_dir}')
image_dir = prj_dir
self.image_dir = os.path.abspath(image_dir)
SlTrace.lg(f"image_dir:{image_dir}")
self.select_image_hash = ImageHash(image_dir=self.image_dir)
self.select_image_files = self.select_image_hash.get_image_files()
""" Marker images
stored at twice size to facilitate rotation without
loss of picture
NOTE: needs work to support side size changes
"""
self.marker_image_hash = ImageHash(image_dir=self.image_dir)
self.marker_image_files = self.select_image_hash.get_image_files()
self.image_index = len(self.marker_image_files) # will wrap to 0
self.photo_images = {} # Keeping references
self.marker_image_tags = []
self.image_chosen = None
def ignore_key(self):
""" ignore key
"""
self.trace("ignore key")
def add_canvas_tag(self, tag):
""" Add tag to this move
:tag: tag to add
"""
move = self.get_move()
if move is None:
SlTrace.lg(f"add_canvas_tag: No move for tag")
return
move.canvas_tags.append(tag)
def xset_color(self, colr=None, changing=None):
""" set color, with no move
:colr: new color
default: use current color(w,2, or color string
based on:
self.color_current:
w : rotate through colors[], using self.color_index
2 : rotate though self.custom_colors[], using self.color_index
other : use self.color_current
self.color_index: index within
w : colors[]
2 : self.custom_colors
:colr: color
w : set current color to w standard
2 : set current color to 2 custom
other : set self.color_current to colr
:changing: True - color change
False - color remains constant
default: use self.color_changing
"""
if changing is None:
changing = self.color_changing
if colr is None:
if self.color_current is None:
return
else:
colr = self.color_current
self.trace(f"xset_color:{colr}")
if colr == "w":
self.color_current = "w"
self.color_changing = True
elif colr == "2" or colr == "=":
self.color_current = "2"
self.color_changing = True
else:
self.color_current = colr
self.color_changing = changing
new_color = self.next_color()
if not self.use_command:
self.tu.color(new_color)
def next_color(self, colr=None, changing=None):
""" Get next color based on color_current, color_changing
:colr: color
default: use self.color_current
:changing: is color changing
default: use self.color_changing
"""
if colr is None:
colr = self.color_current
self.color_current = colr
if changing is None:
changing = self.color_changing
self.color_changing = changing
if self.color_current == 'w':
if self.color_changing:
self.color_index += 1
if self.color_index >= len(self.colors):
self.color_index = 0 # wrap around
new_color = self.colors[self.color_index]
elif self.color_current == '2':
if changing:
self.color_index += 1
if self.color_index >= len(self.custom_colors):
self.color_index = 0
new_color = self.custom_colors[self.color_index]
else:
new_color = self.color_current
if type(new_color) != str:
SlTrace.report(f"new_color:{new_color} not str")
return
SlTrace.lg(
f"new_color:{new_color}"
f" color_current:{self.color_current}"
f" color_index:{self.color_index}"
f" color_changing:{self.color_changing}", "color")
return new_color
def set_visible_color(self, colr):
""" Set visible color based on colr
:colr: color to be
- set invisible (white)
+ set visible current color
"""
if colr == "-":
self.move_minus()
elif colr == "+":
self.move_plus()
else:
self.xset_color(colr)
def marker_set(self, marker=None, changing=None, choose=None):
""" Event marker setting
:marker: marker to set
:changing: auto changing markers
:choose: True: prompt user for marker
"""
if choose:
""" Prompt user for marker
"""
x0 = 300
y0 = 400
width = 200
height = 400
SlTrace.lg(f"x0={x0}, y0={y0}, width={width}, height={height}",
"choose")
select_image_files = self.get_image_files()
select_image_hash = self.get_select_image_hash()
app = SelectList(items=select_image_files,
image_hash=select_image_hash,
default_to_files=True,
title="Marker Images",
position=(x0, y0),
size=(width, height))
selected_field = app.get_selected(return_text=True)
SlTrace.lg(f"image_image: selected_field:{selected_field}",
"choose")
if selected_field is None:
return
self.image_chosen = self.image_file_to_info(selected_field)
if self.image_chosen is None:
SlTrace.report(f"Sorry, can't load image {selected_field}")
return
self.marker_chosen = selected_field
SlTrace.lg(f"self.image_chosen={self.image_chosen}")
self.set_marker(marker="image", changing=False)
self.do_marker()
else:
self.set_marker(marker=marker, changing=changing)
def pick_next_image(self):
""" Get next from current image group
:returns: imageinfo (key, image)
"""
display_file = self.get_image_file()
return self.image_file_to_info(display_file)
def image_file_to_image(self, file):
""" Get base image from file
"""
image = self.marker_image_hash.get_image(key=file, photoimage=False)
return image
def image_file_to_info(self, display_file):
""" Convert file name(key) to image_info(key, image)
:display_file: display file name/key
:returns: image_info (key, image)
None if can't get it
"""
image = self.image_file_to_image(display_file)
if image is None:
SlTrace.report(f"Can't load image:{display_file}")
return None
return (display_file, image)
def line_setting(self):
self.line_set(choose=True)
def moveto_setting(self):
self.moveto_set(choose=True)
def set_pen_state(self, pendwn=None):
""" Set pen to or back to drawing state
self.is_pendown
:pendown: target pen state
default: current drawing state
"""
if self.use_command:
self.set_pen_state(pendwn=pendwn)
return
pen_target = self.is_pendown
if pendwn is not None:
pen_target = pendwn
if pen_target:
if not self.tu.isdown():
self.tu.pendown()
else:
if self.tu.isdown():
self.tu.penup()
self.is_pendown = pen_target
def jump_to(self, heading=None, distance=0, pendwn=False):
""" Move pen from current (immediate) location
:heading: move direction default: current heading
:distance: distance in direction of heading
:pendwn: True lower pen, False Raise pen
Leave pen in original state after
default: raise pen
"""
if self.use_command:
self.cmd_jump_to(heading=heading, distance=distance, pendwn=pendwn)
return
if pendwn:
if not self.tu.isdown():
self.tu.pendown()
else:
if self.tu.isdown():
self.tu.penup()
if heading is None:
heading = self.heading
self.xset_heading(heading, change=False)
self.tu.forward(distance)
self.xset_heading(self.heading) # Restore heading
self.set_pen_state() # Restore pen state
def jump_to_next(self):
""" Move to next position, invisibly
"""
if self.use_command:
self.cmd_jump_to_next()
return
if self.tu.isdown():
self.tu.penup()
self.xset_heading(self.heading)
theta = math.radians(self.heading)
x_chg = self.side * math.cos(theta)
y_chg = self.side * math.sin(theta)
new_x = self.x_cor + x_chg
new_y = self.y_cor + y_chg
self.move_to(new_x, new_y)
self.set_pen_state()
def jump_to_next_line(self):
""" Move to beginning of next line, invisibly
"""
if not self.use_command:
if self.tu.isdown():
self.tu.penup()
self.xset_heading(self.heading)
down_heading = self.heading - 90 # Down to next line
theta = math.radians(down_heading)
x_chg = self.side * math.cos(theta)
y_chg = self.side * math.sin(theta)
new_x = self.text_line_begin_x + x_chg
new_y = self.text_line_begin_y + y_chg
self.move_to(new_x, new_y, pen_down=False) # Beginning of next line
self.set_new_line()
self.set_pen_state()
def pick_next_shape(self):
""" Get next from shape list
:returns: return next shape
"""
if self.nth_shape > 0:
self.shape_index += 1
self.nth_shape += 1
nshape = len(self.shape_order)
if self.shape_index >= nshape:
self.shape_index = 0
display_shape = self.shape_order[self.shape_index]
return display_shape
def set_shape(self, shape=None, choose=None, changing=None):
""" Set shape - not much - initially to be in line with
set_marker
"""
self.shape_next(shape=shape, choose=choose)
""" Select special marker images
"""
def marker_animals(self):
""" Setup to rotate through animal images
"""
self.set_image_type(KeyboardDraw.IT_FILE)
self.set_image_group("animals")
self.image_next('rotateinplace')
def marker_text(self):
""" Setup to add text character images
"""
self.set_image_type(KeyboardDraw.IT_FILE)
self.image_next('rotateinplace')
def do_shift(self, shift_on=True):
""" Shift letters
:shift_on: Put shift on, adjust letters
default: True
"""
self.screen_keyboard.do_shift(shift_on=shift_on)
def letter_next(self):
""" Set letter "shape"
"""
if self.marker_current == "letter":
return
self.marker_before_letter = self.marker_current
self.set_marker("letter")
self.set_new_line()
if self.marker_before_letter != "letter":
self.jump_to(distance=self.side / 2)
self.do_shift() # Default to uppercase
self.do_pendown() # Default to visible
self.set_key_images(show=False)
exit_infos = self.get_btn_infos(key="END")
self.set_btn_image(exit_infos, image="drawing_abc_end.png")
self.track_keys_text()
self.master.focus() # So keyboard is active
def on_text_end(self):
###self.text_entry_funcid = self.master.unbind('<KeyPress>', self.text_entry_funcid)
self.track_keys() # Reset keys to drawing cmds
self.do_shift(False)
exit_infos = self.get_btn_infos(key="BKSP")
self.set_btn_image(exit_infos, image=None)
self.set_key_images(show=True)
self.set_marker(self.marker_before_letter)
def get_move(self):
""" Get most recent move (MoveInfo)
:returns: move, None if none
"""
if len(self.move_stack) > 0:
return self.move_stack[-1]
return None
def check(self, key):
print(f"\n#{key}") # Force even if self.trace is False
print("check")
def checking(self):
""" Debugging catch
"""
self.check("check")
def dotrace(self, key=None):
""" Flip tracing setting
"""
self.do_trace = not self.do_trace
def tracing(self):
""" Debugging catch
"""
self.dotrace("trace")
def get_image_files(self):
""" get current image group's files
"""
ifg = self.get_image_file_group()
return ifg.image_files
def get_image_file(self, group=None, file=None, next=True):
""" get current image group's file
:group: group name default: current group
:file: file name default: current or next
:next: if true get next
"""
ifg = self.get_image_file_group(name=group)
if file is not None:
im_file = ifg.get_file(file=file)
return im_file
if next:
inc = 1
else:
inc = 0
im_file = ifg.get_file(inc=inc)
SlTrace.lg(f"get_image_file: {im_file}", "image_display")
return im_file
def get_image_hash(self):
""" get current image group's files
"""
ifg = self.get_image_file_group()
return ifg.image_hash
def get_select_image_hash(self):
""" get current image group's SelectList hash
Note that these may be images whose sizes are
for the SelectList and not for marker images
"""
ifg = self.get_image_file_group()
return ifg.select_image_hash
def get_image_file_group(self, name=None):
""" Get current marker image file group (DataFileGroup)
:name: group name
default: return current self.image_group
"""
if name is None:
name = self.image_group_names[0]
ifg = self.ifh.get_group(name)
return ifg
def get_image_file_groups(self):
""" Get all image file groups (DataFileGroup)
:returns: data groups (list of DataFileGroup)
"""
names = self.image_group_names
groups = []
for name in names:
groups.append(self.ifh.get_group(name))
return groups
def get_canvas(self):
""" Get our working canvas
"""
return self.canv
def select_print(self, tag, trace=None):
""" Print select select state
"""
"""TBD"""
def expand_key(self, key):
""" Expand key to functional form: name(arg,arg,...)
"""
if re.match(r'^\w+\(.*\)', key):
return key # Already in function form
for short_name in self.key_fun_name:
if key.startswith(short_name):
fun_name = self.key_fun_name[short_name]
arg_str = key[len(short_name):]
name = f"{fun_name}({arg_str})"
return name
return key # Unchanged
nk = 0 # length key spaces so far
def print_key(self, key):
""" Print key
:key: key string
"""
if self.nk > 0:
if self.nk > 40:
print()
self.nk = 0
else:
print(";", end="")
exp_key = self.expand_key(key)
self.nk += len(exp_key)
print(exp_key, end="")
def do_key(self, key, **kwargs):
""" Process key by
calling keyfun, echoing key
:key: key (descriptive string) pressed
or special "key" e.g. funname(args)
:kwargs: function specific parameters
often to "redo" adjusted undone operations
"""
return self.cmd_proc.do_key(key, **kwargs)
def do_keys(self, keystr):
""" Do action based on keystr
semicolon or newline used as separators
Empty areas between separators are ignored
lines starting with # are printed but removed
text starting with "\s+.*" are removed
:keystr: string of key(values) must match track_key
interpretations e.g. Up for up-arrow,
minus for "-"
"""
rawkeylines = keystr.split('\n')
code_keylines = []
for rawkeyline in rawkeylines:
if re.match(r'^\s*#', rawkeyline):
code_keylines.append(rawkeyline) # Pass comment line
continue
eol_com_match = re.match(r'^(.*\S)(\s+#.+)$', rawkeyline)
if eol_com_match:
code_keylines.append(eol_com_match.group(1))
code_keylines.append(
eol_com_match.group(2)) # remove trailing comment
continue
code_keylines.append(rawkeyline)
for code_keyline in code_keylines:
if re.match(r'\s*#', code_keyline):
print(f"\n{code_keyline}")
continue
keys = re.split(r'\s*;\s*|\s+', code_keyline)
for key in keys:
if key != "":
self.do_key(key)
def set_key_mapping(self):
""" Setup key to function mapping
TBD
"""
# key, function [, *parameters],
key_mapping = [
['h', self.help],
]
def on_text_entry(self, event):
""" Text entry from keyboard
:event" key press event
"""
inchar = event.char
keysym = event.keysym
keycode = event.keycode
SlTrace.lg(f"on_text_entry: keysym: {keysym} keycode: {keycode}")
if keysym == 'End':
key = "END"
self.text_enter_key(key)
if keysym == "Return":
self.text_enter_key("ENTER")
elif keysym == 'BackSpace':
self.draw_undo()
elif keysym == 'Shift_L' or keysym == 'Shift_R':
pass # Just adjust physical keyboard
elif keysym == 'Caps_Lock':
pass # Just adjust physical keyboard
elif keysym == 'Up' or keysym == 'Down' or keysym == 'Left' or keysym == 'Right':
self.move(direct=keysym, just_move=True)
else:
key = event.char
self.text_enter_key(key)
def on_text_entry_screen(self, key):
""" Text entry from screen keyboard
:key" key click
"""
SlTrace.lg(f"on_text_entry_screen: key: {key}")
if key == "END":
self.on_text_end()
return
if key == "BKSP":
self.draw_undo()
return
self.text_enter_key(key=key)
def track_keys_text(self):
""" Setup keys for text input """
""" bind screen keyboard keys """
def set_key_images(self, show=False):
self.screen_keyboard.set_images(show=show)
def get_btn_infos(self, key=None, row=None, col=None):
""" Get buttons
:key: if not None, must match
:row: if not None, must match
:col: if not None, must match
"""
return self.screen_keyboard.get_btn_infos(key=key, row=row, col=col)
def set_btn_image(self, btn_infos=None, image=None):
""" Set button (btn_infos) image displayed
:btn_infos: ButtonInfo, or list of ButtonInfos
:image" text - image file
Image - image
"""
self.screen_keyboard.set_btn_image(btn_infos=btn_infos, image=image)
def draw_undo(self):
""" Undo most recent operation
As the only handle we have on turtle objects
is undobufferentries(), we save a stack of this
count at the beginning of each opperation.
Undo consists of calling undo while undobufferentries()
returns a number greater than the stack entry
count
"""
self.trace_move_stack("draw_undo", flag="draw_undo")
""" Undo move (limits undo)
Might consider combining with canvas undo
"""
""" Undo canvas (e.g. image) actions if any
Have to do check before move because we keep
the stacks diferently because move_stack[0] remains
"""
move = self.get_move()
if move is None:
SlTrace.lg("draw_undo: Empty Stack - can't undo")
return
if len(move.canvas_tags) > 0:
canvas_tags = move.canvas_tags
for canvas_tag in canvas_tags:
self.canv.delete(canvas_tag)
if len(self.move_stack) > 0: # current is on top of stack
self.move_undo = self.move_stack.pop()
else:
self.trace_move_stack("draw_undo AFTER - no more undos",
flag="draw_undo")
return
""" Undo turtle actions, if any. """
if len(self.draw_undo_counts) > 0:
while (tu_undo_count :=
self.tu.undobufferentries()) > move.undo_count_base:
SlTrace.lg(f"tu_undo_count: {tu_undo_count}")
self.tu.undo()
SlTrace.lg(f"undo_count: {tu_undo_count}")
self.master.update_idletasks()
self.trace_move_stack("draw_undo AFTER")
if __name__ == '__main__':
def report_change(item, val, cklist=None):
SlTrace.lg("changed: %s = %d" % (item, val))
new_val = SlTrace.getLevel(item)
SlTrace.lg("New val: %s = %d" % (item, new_val))
if cklist is not None:
cklist.list_ckbuttons()
root = Tk()
SlTrace.set_mw(root)
###frame = Frame(root)
###frame.pack()
SlTrace.setProps()
image_hash = ImageHash(image_dir="../../crs_dots/images")
image_files = image_hash.get_image_files()
text_items = ["ONE", "TWO", "3", "FOUR"]
x0 = 300
y0 = 400
width = 200
height = 400
SlTrace.lg(f"x0={x0}, y0={y0}, width={width}, height={height}",
"select_list")
SlTrace.lg("Text Buttons")
app = SelectList(items=text_items,
position=(x0, y0),
size=(width, height),
title="Text Buttons")
selected_field = app.get_selected()
SlTrace.lg(f"text_items: selected_field:{selected_field}")
class DmDrawerImage(DmDrawer):
IT_FILE = "it_file" # image from file
IT_TEXT = "it_text" # image generated
def __init__(self, master, **kwargs):
""" DmDrawer, extended to support images
"""
super().__init__(master, **kwargs)
self.setup_image_access()
def get_image_file(self, group=None, file=None, next=True):
""" get current image group's file
:group: group name default: current group
:file: file name default: current or next
:next: if true get next
"""
ifg = self.get_image_file_group(name=group)
if file is not None:
im_file = ifg.get_file(file=file)
return im_file
if next:
inc = 1
else:
inc = 0
im_file = ifg.get_file(inc=inc)
SlTrace.lg(f"get_image_file: {im_file}", "image_display")
return im_file
def get_image_file_group(self, name=None):
""" Get current marker image file group (DataFileGroup)
:name: group name
default: return current self.image_group
"""
if name is None:
name = "animals"
ifg = self.ifh.get_group(name)
return ifg
def get_next_image(self):
""" Get next from current image group
:returns: imageinfo (key, image)
"""
display_file = self.get_image_file()
return self.image_file_to_image(display_file)
def setup_image_access(self, image_dir=None):
""" Setup image access for markers
:image_dir: image file directory
"""
if image_dir is None:
image_dir = "./images" # Distribution choice
SlTrace.lg(f"Trying distibution image dir: {image_dir}")
if not os.path.exists(image_dir):
image_dir = "../../resource_lib/images"
SlTrace.lg(f"Using development image dir: {image_dir}")
self.image_type = "it_file"
self.image_group_names = [
"animals", "family", "princesses", "other_stuff"
]
self.image_group_index = len(self.image_group_names)
if self.image_group_index >= len(self.image_group_names):
self.image_group_index = 0
group_name = self.image_group_names[self.image_group_index]
self.ifh = DataFiles(data_dir=image_dir)
for name in self.image_group_names:
group_dir = os.path.join(image_dir, name)
self.ifh.add_group(name, group_dir=group_dir)
SlTrace.lg("Image Files")
data_files_dir = "../../resource_lib/images/animals"
image_files_dir = os.path.abspath(data_files_dir)
if not os.path.exists(image_files_dir):
SlTrace.lg(f'__file__:{__file__}')
src_dir = os.path.dirname(os.path.abspath(__file__))
SlTrace.lg(f"Assuming images are in src_dir")
SlTrace.lg(f'src_dir:{src_dir}')
prj_dir = os.path.dirname(src_dir)
SlTrace.lg(f'prj_dir:{prj_dir}')
image_dir = prj_dir
self.image_dir = os.path.abspath(image_dir)
SlTrace.lg(f"image_dir:{image_dir}")
self.select_image_hash = ImageHash(image_dir=self.image_dir)
self.select_image_files = self.select_image_hash.get_image_files()
""" Marker images
stored at twice size to facilitate rotation without
loss of picture
NOTE: needs work to support side size changes
"""
self.marker_image_hash = ImageHash(image_dir=self.image_dir)
self.marker_image_files = self.select_image_hash.get_image_files()
self.image_index = len(self.marker_image_files) # will wrap to 0
self.photo_images = {} # Keeping references
self.marker_image_tags = []
self.image_chosen = None
def image_file_to_image(self, file):
""" Get base image from file
"""
image = self.marker_image_hash.get_image(key=file, photoimage=False)
return image
