GUI Output Text

**bartonc** · Mar 26 '07, 05:23 PM

Originally posted by wocosc

I have my gui set up, and I am using a loop to set up output text to be displayed in the gui if the conditions are met. However, what handler do i use to display the text in the gui?

You'll have to remind me: Tkinter or wxPython?

I think in Tk it's

Code:

self.text.insert(text)

where self.text is a Tk.Text widget.
In wx it's

Code:

self.myTextCtrl.AppendText(text)

where myTextCtrl is a multiline wx.TextCtrl.

**wocosc** · Mar 26 '07, 07:27 PM

Originally posted by bartonc

You'll have to remind me: Tkinter or wxPython?

I think in Tk it's

Code:

self.text.insert(text)

where self.text is a Tk.Text widget.
In wx it's

Code:

self.myTextCtrl.AppendText(text)

where myTextCtrl is a multiline wx.TextCtrl.

I am really just using Python v2.5 . I am not supposed to use other gui's. Really, we are just using the graphics .py file to make our gui.

**bartonc** · Mar 27 '07, 12:47 AM

Originally posted by wocosc

I am really just using Python v2.5 . I am not supposed to use other gui's. Really, we are just using the graphics .py file to make our gui.

The only GUI that "comes with" python is Tkinter. Period. Tkinter has some graphics capability. Graphics packages generally don't make GUIs; GUIs generally can handle graphics.

Please show some work that you have done and we will get this straightened out.

**wocosc** · Mar 27 '07, 01:51 PM

Here is the code. The Cases (1,2,3,4) has the text that needs to be displayed if the certain condition is met.

Code:

from graphics import *

def main():
	win = GraphWin("BMI Calculator", 1200,700)
	win.setCoords(0.0, 0.0, 3.0, 4.0)

	## Draw the interface
	Text(Point(1,3), " Height (inches):").draw(win)
	Text(Point(1,3.5), "Weight (lbs):").draw(win)
	Text(Point(1,1), "Body Mass Index:").draw(win)
	ht = Entry(Point(2,3), 5)
	ht.setText("0.0")
	ht.draw(win)
	wt = Entry(Point(2,3.5), 5)
	wt.setText("0.0")
	wt.draw(win)

	output = Text(Point(2,1),"")
	output.draw(win)
	suggestion = Text(Point(1,1),"")
	suggestion.draw(win)
	button = Text(Point(1.5,2.0),"Convert It")
	button.draw(win)
	Rectangle(Point(1,1.5), Point(2,2.5)).draw(win)

	## Wait for a mouse click
	win.getMouse()

	## Convert input
	ht = eval(ht.getText())
	wt = eval(wt.getText())
	bmi = wt * 703.0 / (ht * ht)

	## Display output and change button
	output.setText("%0.1f" % bmi)
	button.setText("Quit")

	## Wait for click and then quit
	win.getMouse()
	win.close()

	## Case one
	n = 8 - bmi
	new = (18 * (ht * ht)) / 703.3
	difference = new - wt  
	x = difference * 2
	if bmi < 16:
	## figure out how to display the following text..
		suggestion.setText("%0.1f","I am ordering a work-up for eating disorders to be on the safe side. In the mean time,I would like you to gain", n  ,"pounds over the next", x," weeks").draw(win)

	## Case 2.
	elif bmi < 25:
	## figure out how to display the following text..
		output.setText("%0.1f", "Keep up the good work!"

	## Case 3.
	elif bmi =< 30:
	## figure out how to display the following text..
		display the message "You could stand to lose weight. I'd like you to lose", n," pounds over the next", x," months."

	## Case 4.
	elif bmi > 30:
	## figure out how to display the following text..
		display the message "We have a problem here. You need to lose", n," pounds over the next," x," months."

**bartonc** · Mar 27 '07, 07:07 PM

Thanks for posting the code.
I found the documentation here, but haven't found the download yet, so I can't play with it yet.

Anybody else ever heard of graphics.py (a thin wrapper for Tkinter) before?

**bartonc** · Mar 27 '07, 07:09 PM

Originally posted by bartonc

Thanks for posting the code.
I found the documentation here, but haven't found the download yet, so I can't play with it yet.

Anybody else ever heard of graphics.py (a thin wrapper for Tkinter) before?

The Text object methode that you are looking for is:
setText(string)
Sets the text of the object to string.

**bartonc** · Mar 27 '07, 10:25 PM

Originally posted by bartonc

Thanks for posting the code.
I found the documentation here, but haven't found the download yet, so I can't play with it yet.

Anybody else ever heard of graphics.py (a thin wrapper for Tkinter) before?

It turns out that Wartburg College has all the links for graphics.py.

**wocosc** · Mar 27 '07, 10:34 PM

Originally posted by bartonc

The Text object methode that you are looking for is:
setText(string)
Sets the text of the object to string.

so i put the text i want to display in the (string)?

**bartonc** · Mar 27 '07, 10:38 PM

Originally posted by wocosc

so i put the text i want to display in the (string)?

Yet. That's correct. Just try it and see what happens. Post back with code and/or error messages. We'll get you going.

BTW, are you taking a class at Wartburg?

**wocosc** · Mar 28 '07, 12:50 AM

Code:

from graphics import *

def main():
    win = GraphWin("BMI Calculator", 1200,700)
    win.setCoords(0.0, 0.0, 3.0, 4.0)

    ## Draw the interface
    Text(Point(1,3), " Height (inches):").draw(win)
    Text(Point(1,3.5), "Weight (lbs):").draw(win)
    Text(Point(1,1), "Body Mass Index:").draw(win)
    ht = Entry(Point(2,3), 5)
    ht.setText("0.0")
    ht.draw(win)
    wt = Entry(Point(2,3.5), 5)
    wt.setText("0.0")
    wt.draw(win)

    output = Text(Point(2,1),"")
    output.draw(win)
    suggestion = Text(Point(1,1),"")
    suggestion.draw(win)
    button = Text(Point(1.5,2.0),"Convert It")
    button.draw(win)
    Rectangle(Point(1,1.5), Point(2,2.5)).draw(win)

    ## Wait for a mouse click
    win.getMouse()

    ## Convert input
    ht = eval(ht.getText())
    wt = eval(wt.getText())
    bmi = wt * 703.0 / (ht * ht)

    ## Display output and change button
    output.setText("%0.1f" % bmi)
    button.setText("Quit")

    ## Wait for click and then quit
    win.getMouse()
    win.close()

    ## Case one
    n = 8 - bmi
    new = (18 * (ht * ht)) / 703.3
    difference = new - wt  
    x = difference * 2
    if bmi < 16:
    ## figure out how to display the following text..
        1 = "I am ordering a work-up for eating disorders to be on the safe side. In the mean time,I would like you to gain", n  ,"pounds over the next", x," weeks").draw(win)
        setText(1)
    ## Case 2.
    if bmi < 25:
    ## figure out how to display the following text..
        output.setText("%0.1f", "Keep up the good work!"

    ## Case 3.
    if bmi =< 30:
    ## figure out how to display the following text..
        display the message "You could stand to lose weight. I'd like you to lose", n," pounds over the next", x," months."

    ## Case 4.
    if bmi > 30:
    ## figure out how to display the following text..
        display the message "We have a problem here. You need to lose", n," pounds over the next," x," months."

did I set case 1 up right?/??????

**bartonc** · Mar 28 '07, 04:28 AM

Here are a couple of things that I see:
First: You need to use CODE tags! I'm the only one in this forum who can add them after you post, so nobody who is trying to get an answer for you can see the structure (or lack of it in this case) of your code.

Code:

    ## Case one
    n = 8 - bmi
    new = (18 * (ht * ht)) / 703.3
    difference = new - wt  
    x = difference * 2
    if bmi < 16:
    ## figure out how to display the following text..
        1 = "I am ordering a work-up for eating disorders to be on the safe side. In the mean time,I would like you to gain", n  ,"pounds over the next", x," weeks")

Assign to a variable only and use string formats as before, as in:
message = "I am ordering a work-up for eating disorders to be on the safe side. In the mean time,I would like you to gain %d pounds over the next %d weeks" %(n, x)
Then, after all the cases have run and decided what the value of message is:

Code:

output.setText(message)

The proper syntax for "less than or equal" is <= not:

Code:

       ## Case 3.
    if bmi =< 30:

**bartonc** · Mar 28 '07, 04:34 AM

Originally posted by bartonc

Here are a couple of things that I see:
First: You need to use CODE tags! I'm the only one in this forum who can add them after you post, so nobody who is trying to get an answer for you can see the structure (or lack of it in this case) of your code.

Code:

    ## Case one
    n = 8 - bmi
    new = (18 * (ht * ht)) / 703.3
    difference = new - wt  
    x = difference * 2
    if bmi < 16:
    ## figure out how to display the following text..
        1 = "I am ordering a work-up for eating disorders to be on the safe side. In the mean time,I would like you to gain", n  ,"pounds over the next", x," weeks")

Assign to a variable only and use string formats as before, as in:
message = "I am ordering a work-up for eating disorders to be on the safe side. In the mean time,I would like you to gain %d pounds over the next %d weeks" %(n, x)
Then, after all the cases have run and decided what the value of message is:

Code:

output.setText(message)

The proper syntax for "less than or equal" is <= not:

Code:

       ## Case 3.
    if bmi =< 30:

Code:

        output.setText("%0.1f", "Keep up the good work!"

becomes

Code:

message = "%0.1f, Keep up the good work!" % bmi

**bartonc** · Mar 28 '07, 05:11 AM

Originally posted by bartonc

Code:

        output.setText("%0.1f", "Keep up the good work!"

becomes

Code:

message = "%0.1f, Keep up the good work!" % bmi

Cases are written like this:

Code:

case = 1
if case == 1:
    print "one"
elif case == 2:
    print "two"
else:
    print "not a valid case"

GUI Output Text

GUI Output Text

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