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4.draw_round_rect()

Description

Create a rounded rectangle on UNIHIKER screen

Syntax

GUI.draw_round_rect(x, y, w, h, r, width, color , onclick)

Parameters

x: The x-coordinate where the rectangle is displayed on the UNIHIKER screen.
y: The y-coordinate where the rectangle is displayed on the UNIHIKER screen.
w: The width of the rectangle.
h: The height of the rectangle.
r: The radius of the rounded corners.
width: The thickness of the border.
color: The colour of the border.
onclick: The callback function triggered when the rectangle is clicked.

Return

**Rounded rectangle object

Example Description

In this simple example, we aim to display a grey rounded rectangle at the centre of the UNIHIKER, bound to a click callback function. The rectangle's width is 140, its height is 120, the border's thickness is 3, and the radius of the rounded corners is 8.

Hardware Required

Example Code

Instantiate an object of the GUI class within the UNIHIKER class, and call the draw_round_rect() function through this object to display the rounded rectangle and set the parameters. 

from unihiker import GUI   # Import the package
gui = GUI()  # Instantiate the GUI class

# Draw a rounded rectangle on the GUI with the specified coordinates and parameters
# The rounded rectangle is located at (x=50, y=50) with a width of 140 pixels and a height of 120 pixels
# The radius of the corners is set to 8 pixels
# The border width of the rounded rectangle is 3 pixels
# The color of the rounded rectangle is specified as "grey"
# When the rounded rectangle is clicked, the lambda function is executed, which prints "round rect clicked" to the console
gui.draw_round_rect(x=50, y=50, w=140, h=120, r=8, width=3, color="grey", onclick=lambda: print("round rect clicked"))

import time
while True:
    # Add a delay to prevent the program from exiting and to observe the effects
    time.sleep(1)

Program Effect: image.png