applp.CanvasImage module

class applp.CanvasImage(master, image, title='', ncoords=None, *args, **kwargs)

Bases: Frame

This class is a tkinter frame where to put an image that can be manipulated.

Parameters:

a (int or float) – TODO.

_attr

TODO.

Type:

int or float

Examples

>>> from applp import CanvasImage
...
>>> instance = CanvasImage(TODO)

bkgd()

property color_shape

property coords

delta = 1.1

property draw_func

property draw_kwargs

draw_shape = 'Rectangle'

drawing_corner = 10

get_coord(event=None)

Getting coordinates of last drawn shape (x0,y0,x1,y1)

grid(*args, **kwargs)

Grid the widget and initialize internal layout.

Calls place_widgets() after gridding to set up scrollbars, header, and canvas.

Parameters:

• *args – Positional arguments forwarded to tk.Frame.grid().

• **kwargs – Keyword arguments forwarded to tk.Frame.grid().

property image

imscale = 1.0

left_move(event=None)

Draws shape while dragging mouse

left_press(event=None)

Remember first coordinates of drawing

move_from(event)

Remember previous coordinates for scrolling with the mouse

move_to(event)

Drag (move) canvas to the new position

n_bkgd = 100

pack(*args, **kwargs)

Pack the widget and initialize internal layout.

Calls place_widgets() after packing to set up scrollbars, header, and canvas.

Parameters:

• *args – Positional arguments forwarded to tk.Frame.pack().

• **kwargs – Keyword arguments forwarded to tk.Frame.pack().

paste_shape(event=None)

Keep the last shape on canvas and resets a new shape

place(*args, **kwargs)

Place the widget and initialize internal layout.

Calls place_widgets() after placing to set up scrollbars, header, and canvas.

Parameters:

• *args – Positional arguments forwarded to tk.Frame.place().

• **kwargs – Keyword arguments forwarded to tk.Frame.place().

place_widgets()

pointer_exit(event)

pointing(event)

right_release(event=None)

Makes new shape

scroll_x(*args)

Scroll canvas horizontally and redraw the image

scroll_y(*args)

Scroll canvas vertically and redraw the image

shaper_text()

property shapes

show_image(event=None)

Show image on the Canvas

title = ''

title_size = 16

update_bkgd(event=None)

wheel(event)

Zoom with mouse wheel

width_shape = 2