Kivy – Interactive Applications and Games in Python Second Edition by Ulloa Roberto

Author:Ulloa, Roberto
Language: eng
Format: epub, mobi
Publisher: Packt Publishing
Published: 2015-06-29T00:00:00+00:00

Tip

The "splat" operator (*) on lines 77, 84, and 94 is used in Python to unpack argument lists. In this case, the Color constructor is meant to receive three parameters with the red, green, and blue values, but we have a list stored in color_picker.color, for example, (1,0,1), so we need to unpack it to get three separated values 1,0,1.

We also use canvas.before in the draw method of the ToolStickman class (line 77). This is used to ensure that the Color instruction is executed before the instructions we added in canvas of Stickman (the comicwidgets.kv file). This is not necessary in the other two methods because we have full control of the canvas order inside those methods.

Finally, we must import the Color class in the header of the file from kivy.graphics import Line, Color. We can now take a break and enjoy the result of our hard work with our Comic Creator:

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