def clear_callback(self):
"""
Clear the drawing canvas.
"""
drawing = Drawing(DrawingType.CLEAR, 0, (0, 0, 0, 0))
self.view.draw_shape(drawing)
self._enqueue(drawing)
class TestDrawing(TestCase):
def setUp(self):
self.drawing = Drawing(DrawingType.RECT, 0, [0, 0, 1, 1])
def test_encoding_decoding_are_equal(self):
bytes_array = self.drawing.encode()
other = Drawing.decode_drawing(bytes_array)
self.assertEqual(self.drawing, other)
class TestDrawing(TestCase):
def setUp(self):
self.drawing = Drawing(DrawingType.RECT, 0, "#000000", [0, 0, 1, 1])
self.text_drawing = Drawing(DrawingType.TEXT, 0, "#000000",
[0, 0, 0, 0], "testing")
def test_encoding_decoding_are_equal(self):
bytes_array = self.drawing.encode()
decoded, decoded_length = Drawing.decode_drawing(bytes_array)
self.assertEqual(len(bytes_array), decoded_length)
self.assertEqual(self.drawing, decoded)
def test_decoding_multiple_drawings(self):
bytes_array = self.drawing.encode() + self.text_drawing.encode()
decoded = Drawing.decode_drawings(bytes_array)
self.assertEqual(decoded[0], self.drawing)
self.assertEqual(decoded[1], self.text_drawing)
def test_decoding_text(self):
bytes_array = self.text_drawing.encode()
decoded, decoded_length = Drawing.decode_drawing(bytes_array)
self.assertEqual(len(bytes_array), decoded_length)
self.assertEqual(self.text_drawing, decoded)
def _handle_motion_event(self, event, drawing_type, drag_drawing):
"""
"""
if drag_drawing:
self.view.clear_drawing_by_id(self.last_drawing_id)
if not self.cancel_drawing:
event_coord = event.x, event.y
drawing = Drawing(drawing_type, self.current_thickness,
self.start_pos + event_coord)
if not drag_drawing:
self._enqueue(drawing)
self.start_pos = event_coord
drawing_id = self.view.draw_shape(drawing)
self.last_drawing_id = drawing_id
def _handle_button_release_event(self, event, drawing_type, drag_drawing):
"""
"""
if drag_drawing:
self.view.clear_drawing_by_id(self.last_drawing_id)
if not self.cancel_drawing:
if drawing_type != DrawingType.TEXT:
drawing = Drawing(drawing_type, self.current_thickness,
self.start_pos + (event.x, event.y))
self._enqueue(drawing)
self.view.draw_shape(drawing)
else:
self._create_text_entry_box(
self.current_thickness,
self.start_pos + (event.x, event.y))
self.start_pos = None
self.last_drawing_id = None
self.cancel_drawing = False
def f(event=None): # event is passed when using a keybinding
drawing = Drawing(DrawingType.TEXT, thickness, coords,
text_entry.get()[:self.TEXT_SIZE_LIMIT])
self._enqueue(drawing)
self.view.draw_shape(drawing)
window.destroy()
def _decode_and_draw(self, drawing_data):
"""
Decode the drawing(s) and pass them to the view to be displayed.
"""
for drawing in Drawing.decode_drawings(drawing_data):
self.view.draw_shape(drawing)
def setUp(self):
self.drawing = Drawing(DrawingType.RECT, 0, "#000000", [0, 0, 1, 1])
self.text_drawing = Drawing(DrawingType.TEXT, 0, "#000000",
[0, 0, 0, 0], "testing")
def test_decoding_text(self):
bytes_array = self.text_drawing.encode()
decoded, decoded_length = Drawing.decode_drawing(bytes_array)
self.assertEqual(len(bytes_array), decoded_length)
self.assertEqual(self.text_drawing, decoded)
def test_decoding_multiple_drawings(self):
bytes_array = self.drawing.encode() + self.text_drawing.encode()
decoded = Drawing.decode_drawings(bytes_array)
self.assertEqual(decoded[0], self.drawing)
self.assertEqual(decoded[1], self.text_drawing)
def setUp(self):
self.drawing = Drawing(DrawingType.RECT, 0, [0, 0, 1, 1])
def test_encoding_decoding_are_equal(self):
bytes_array = self.drawing.encode()
other = Drawing.decode_drawing(bytes_array)
self.assertEqual(self.drawing, other)