CODEWITHSUNDEEP
pythontkintercanvasopacity
Elentronics
Elentronics

Reputation: 49

Adjusting opacity and updating the properties of a text object in a canvas in Python

I created a canvas and inside I put an image. I also can change the properties of the watermark text and would like to update the text on the canvas when I make some changes. I created the text inside of the canvas with create_text and when I initialize the program, I created a variable. text_variable = canvas.create_text(...) However, I couldn't also adjust the opacity of the text.

Problems:

I expect:

enter image description here

self.watermark_display = self.display_canvas.create_text(self.watermark_start_position_x, self.watermark_start_position_y, text="Plese write your watermark!", font=(self.fonttype.get(),self.fontsize.get()),fill=self.color_choice)

def update_watermark_display(self):
    self.display_canvas.itemconfig(self.watermark_display, self.watermark_start_position_x, self.watermark_start_position_y, text="Plese write your watermark!", font=(self.fonttype.get(),self.fontsize.get()),fill=self.color_choice)

When I try to do with this way, I got Type Error.

self.display_canvas.itemconfig(self.watermark_display, self.watermark_start_position_x, self.watermark_start_position_y, text="Plese write your watermark!", font=(self.fonttype.get(),self.fontsize.get()),fill=self.color_choice)

TypeError: Canvas.itemconfigure() takes from 2 to 3 positional arguments but 4 were given

Upvotes: 1

Views: 591

Answers (1)

Bryan Oakley
Bryan Oakley

Reputation: 385970

You cannot use itemconfig to change the coordinates. Instead, use the coords method for the coordinates, and itemconfig for the item configuration.

self.display_canvas.itemconfig(
    self.watermark_display, 
    text="Plese write your watermark!", 
    font=(self.fonttype.get(),self.fontsize.get()),
    fill=self.color_choice
)
self.display_canvas.coords(
    self.watermark_display, 
    self.watermark_start_position_x, 
    self.watermark_start_position_y
)

Upvotes: 1

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