Scheme Annotations (annotations
)
Scheme Annotations
-
class
orangecanvas.scheme.annotations.
BaseSchemeAnnotation
Bases:
PyQt5.QtCore.QObject
Base class for scheme annotations.
-
geometry_changed
Signal emitted when the geometry of the annotation changes
-
-
class
orangecanvas.scheme.annotations.
SchemeArrowAnnotation
(start_pos, end_pos, color='red', anchor=None, parent=None) Bases:
orangecanvas.scheme.annotations.BaseSchemeAnnotation
An arrow annotation in the scheme.
-
set_line
(start_pos, end_pos) Set arrow lines start and end position (
(x, y)
tuples).
-
start_pos
Start position of the arrow (base point).
-
end_pos
End position of the arrow (arrow head points toward the end).
-
set_geometry
(geometry) Set the geometry of the arrow as a start and end position tuples (e.g.
set_geometry(((0, 0), (100, 0))
).
-
geometry
Return the start and end positions of the arrow.
-
set_color
(color) Set the fill color for the arrow as a string (#RGB, #RRGGBB, #RRRGGGBBB, #RRRRGGGGBBBB format or one of SVG color keyword names).
-
color
The arrow’s fill color.
-
-
class
orangecanvas.scheme.annotations.
SchemeTextAnnotation
(rect, text='', content_type='text/plain', font=None, anchor=None, parent=None) Bases:
orangecanvas.scheme.annotations.BaseSchemeAnnotation
Text annotation in the scheme.
-
text_changed
(str) Signal emitted when the annotation text changes.
-
set_rect
(rect) Set the text geometry bounding rectangle (
(x, y, width, height)
tuple).
-
rect
Text bounding rectangle
-
set_geometry
(rect) Set the text geometry (same as
set_rect
)
-
geometry
Text annotation geometry (same as
rect
-
set_text
(text) Set the annotation text.
Same as set_content(text, “text/plain”)
-
text
Annotation text.
Deprecated since version Use: content instead.
-
content_type
Return the annotations’ content type.
Currently this will be ‘text/plain’, ‘text/html’ or ‘text/rst’.
-
content
The annotation content.
How the content is interpreted/displayed depends on content_type.
-
set_content
(content, content_type='text/plain') Set the annotation content.
Parameters:
-
set_font
(font) Set the annotation’s default font as a dictionary of font properties (at the moment only family and size are used).
>>> annotation.set_font({"family": "Helvetica", "size": 16})
-
font
Annotation’s font property dictionary.
-