def draw_on(self, canvas, top_left):
x, y = top_left
# pins
for r in xrange(2):
for c in xrange(4):
pin_x = x + c * (CONNECTOR_SIZE + CONNECTOR_SPACING)
pin_y = y + r * (CONNECTOR_SIZE + VERTICAL_SEPARATION)
canvas.create_rectangle(pin_x, pin_y, pin_x + CONNECTOR_SIZE,
pin_y + CONNECTOR_SIZE, fill='black')
# body
width = 4 * CONNECTOR_SIZE + 3 * CONNECTOR_SPACING
height = 2 * CONNECTOR_SIZE + VERTICAL_SEPARATION
h_offset = 2
v_offset = 2 * CONNECTOR_SIZE / 3
canvas.create_rectangle(x - h_offset, y + v_offset, x + width + h_offset,
y + height - v_offset, fill=OP_AMP_BODY_COLOR)
# dot
dot_dx = (OP_AMP_DOT_OFFSET - h_offset) if self.dot_bottom_left else (
width - OP_AMP_DOT_OFFSET + h_offset)
dot_dy = ((height - OP_AMP_DOT_OFFSET - CONNECTOR_SIZE / 2) if
self.dot_bottom_left else (OP_AMP_DOT_OFFSET + CONNECTOR_SIZE / 2))
create_circle(canvas, x + dot_dx, y + dot_dy, OP_AMP_DOT_RADIUS,
fill=OP_AMP_DOT_COLOR)
if self.jfet:
create_circle(canvas, x + width / 2, y + height / 2, 10, fill='white')
canvas.create_text(x + width / 2, y + height / 2, text='J',
justify=CENTER, fill='red', font=BOLD_FONT)
def draw_on(self, canvas, top_left):
x, y = top_left
size = 3 * CONNECTOR_SIZE + 2 * CONNECTOR_SPACING
offset = 2
canvas.create_rectangle(x - offset,
y - offset,
x + size + offset,
y + size + offset,
fill=POT_FILL,
outline=POT_OUTLINE)
create_circle(canvas,
x + size / 2,
y + size / 2,
POT_CIRCLE_RADIUS,
fill=POT_CIRCLE_FILL)
for (r, c) in ([(0, 1), (2, 0),
(2, 2)] if self.directed_up else [(0, 0), (0, 2),
(2, 1)]):
pin_x = x + c * (CONNECTOR_SIZE + CONNECTOR_SPACING)
pin_y = y + r * (CONNECTOR_SIZE + CONNECTOR_SPACING)
canvas.create_rectangle(pin_x,
pin_y,
pin_x + CONNECTOR_SIZE,
pin_y + CONNECTOR_SIZE,
fill='#777',
outline='black')
def draw_on(self, canvas, top_left):
x, y = top_left
size = 3 * CONNECTOR_SIZE + 2 * CONNECTOR_SPACING
offset = 2
canvas.create_rectangle(x - offset, y - offset, x + size + offset,
y + size + offset, fill=POT_FILL, outline=POT_OUTLINE)
create_circle(canvas, x + size / 2, y + size / 2, POT_CIRCLE_RADIUS,
fill=POT_CIRCLE_FILL)
for (r, c) in ([(0, 1), (2, 0), (2, 2)] if self.directed_up else [(0, 0),
(0, 2), (2, 1)]):
pin_x = x + c * (CONNECTOR_SIZE + CONNECTOR_SPACING)
pin_y = y + r * (CONNECTOR_SIZE + CONNECTOR_SPACING)
canvas.create_rectangle(pin_x, pin_y, pin_x + CONNECTOR_SIZE,
pin_y + CONNECTOR_SIZE, fill='#777', outline='black')
def draw_on(self, canvas, top_left):
x, y = top_left
# pins
for r in xrange(2):
for c in xrange(4):
pin_x = x + c * (CONNECTOR_SIZE + CONNECTOR_SPACING)
pin_y = y + r * (CONNECTOR_SIZE + VERTICAL_SEPARATION)
canvas.create_rectangle(pin_x,
pin_y,
pin_x + CONNECTOR_SIZE,
pin_y + CONNECTOR_SIZE,
fill='black')
# body
width = 4 * CONNECTOR_SIZE + 3 * CONNECTOR_SPACING
height = 2 * CONNECTOR_SIZE + VERTICAL_SEPARATION
h_offset = 2
v_offset = 2 * CONNECTOR_SIZE / 3
canvas.create_rectangle(x - h_offset,
y + v_offset,
x + width + h_offset,
y + height - v_offset,
fill=OP_AMP_BODY_COLOR)
# dot
dot_dx = (OP_AMP_DOT_OFFSET -
h_offset) if self.dot_bottom_left else (width -
OP_AMP_DOT_OFFSET +
h_offset)
dot_dy = ((height - OP_AMP_DOT_OFFSET -
CONNECTOR_SIZE / 2) if self.dot_bottom_left else
(OP_AMP_DOT_OFFSET + CONNECTOR_SIZE / 2))
create_circle(canvas,
x + dot_dx,
y + dot_dy,
OP_AMP_DOT_RADIUS,
fill=OP_AMP_DOT_COLOR)
if self.jfet:
create_circle(canvas,
x + width / 2,
y + height / 2,
10,
fill='white')
canvas.create_text(x + width / 2,
y + height / 2,
text='J',
justify=CENTER,
fill='red',
font=BOLD_FONT)
def draw_on(self, canvas, offset=(0, 0)):
Pin_Drawable.draw_on(self, canvas, offset)
ox, oy = offset
w, h = self.width, self.height
cx, cy = ox + w / 2, oy + h / 2
left_x, left_y, common_x, common_y, right_x, right_y = self._pin_positions(
offset)
self.parts.add(canvas.create_text(left_x + LABEL_PADDING * sign(cx -
left_x), left_y + LABEL_PADDING * sign(cy - left_y), text='l',
fill='white', justify=CENTER, font=FONT))
self.parts.add(canvas.create_text(common_x + LABEL_PADDING * sign(cx -
common_x), common_y + LABEL_PADDING * sign(cy - common_y), text='c',
fill='white', justify=CENTER, font=FONT))
self.parts.add(canvas.create_text(right_x + LABEL_PADDING * sign(cx -
right_x), right_y + LABEL_PADDING * sign(cy - right_y), text='r',
fill='white', justify=CENTER, font=FONT))
# draw the button that shows whether a signal file has been selected
lamp_cx = ox + LAMP_BOX_PADDING + LAMP_BOX_SIZE / 2
lamp_cy = oy + LAMP_BOX_PADDING + LAMP_BOX_SIZE / 2
lamp_box = canvas.create_rectangle(lamp_cx - LAMP_BOX_SIZE / 2, lamp_cy -
LAMP_BOX_SIZE / 2, lamp_cx + LAMP_BOX_SIZE / 2, lamp_cy +
LAMP_BOX_SIZE / 2, fill=LAMP_BOX_COLOR)
lamp = create_circle(canvas, lamp_cx, lamp_cy, LAMP_RADIUS, fill=LAMP_COLOR
if self.signal_file else LAMP_EMPTY_COLOR)
def set_signal_file():
"""
Opens a window to let the user choose a lamp signal file.
"""
new_signal_file = askopenfilename(title=OPEN_LAMP_SIGNAL_FILE_TITLE,
filetypes=[('%s files' % LAMP_SIGNAL_FILE_TYPE,
LAMP_SIGNAL_FILE_EXTENSION)], initialfile=self.signal_file)
if new_signal_file and new_signal_file != self.signal_file:
self.signal_file = relpath(new_signal_file)
canvas.itemconfig(lamp, fill=LAMP_COLOR)
self.on_signal_file_changed()
self.set_signal_file = set_signal_file
self.parts.add(lamp_box)
self.parts.add(lamp)
