how to highlight text ?

[moroccanplaya]

how would you go about highlighting text in the tkinter text widget ?

[sc0tty]

You could use a prompt.

prompt = ("TEST")
label1 = Label(root, text=prompt, width=len(prompt), bg='yellow')
label1.pack()

[moroccanplaya]

is prompt just a variable ??

[sc0tty]

Yeah it is. Sorry the way I said that did make it sound like a function. Basically you can use bg='yellow' to set the background of the text to be yellow. I just used this today, so here is a picture of what is looks like when used in a Tkinter box. [IMG]http://img3.imageshack.us/img3/1492/highlightedtext.png[/IMG]
By scott454 at 2012-02-18

[moroccanplaya]

i got a text in a text widget, how would highlight text that's in a tkinter text widget, i think you cant put lables ontop of a text widget ?

[sc0tty]

Here try this.

import Tkinter as tk

root = tk.Tk()
text = tk.Text(root, font=("Helvetica", 50))
text.pack()

text.insert(tk.END, "Hello, World")
#Designate what letters to highlight
#in this case Hello and W is highlighted
text.tag_add("Hello", "1.0", "1.5")
text.tag_add("W", "1.7", "1.8")
text.tag_config("Hello", background="yellow", foreground="blue")
text.tag_config("W", background="black", foreground="green")

root.mainloop()

[moroccanplaya]

thanks for your great example, can you please explain what does the numbers in the text.tag_add do, "1.0" "1.5" ?

[TrustyTony]

1st line beginning 1st line 0th to 5th letter, I think. Same as "Hello, World"[0:5]

[moroccanplaya]

so for example if i wanted to highlight all the l in a text i would have to pick out each position ?

[woooee]

Vegaseat has a nice example in the "Python GUI Programming" sticky, but I refuse to be someone else's research assistant. If memory serves it is somewhere in the middle of the thread's pages.

[moroccanplaya]

it still doesnt work do you know where im going wrong ???

def highlight(seq):
    #remove highlights
    if "highlight" in Text.tag_names():
        Text.tag_delete("highlight")

        i = len(seq)
        index = "1.0"
        while True:
            index = Text.search(seq, index, nocase=1, stopindex='end')
            if index:
                index2 = Text.index("%s+%d" % (index, i))
                Text.tag_add("highlight", index, index2)
                Text.tag_config("highlight", background="yellow")
                index = index2
            else: return

button4 = ttk.Button(content,text="highlight", command=lambda:highlight("s"))