lockLocation top of graphic "line" ??

[Klaus]

AHA!

I thought he was setting the loc or something...

[shawnblc]

You're creating a graphic with a negative width. Those draw as lines. They used to disappear entirely, so in some ways that's an improvement.

The handler should calculate the actual width for the display bar and then set its position on the graph. Widths have to be positive numbers.

AWE! Makes sense! DUH!

[dunbarx]

Hmmm.

Surely Jacque is right about that, but where in the thread is it written that you are setting any widths? I only see setting rights and lefts.

Anyway, if what she has psychically discovered is true, you have your answer.

Craig


EDIT. Oh, I see it now. A field in your stack (not any code) sets the width of the graphic. It is always a good idea to label the functionality of these things.

[jacque]

Oh, I see it now. A field in your stack (not any code) sets the width of the graphic.

I didn't look at the stack, the clue was in this code fragment:

Code: Select all

if tBlue2 < 0  then
     set the right of graphic "bar3" to the left of graphic "Line2"

For example, if the left of "bar3" is currently at 10 and its right is then set to, say, -33, then the width of the graphic will be -22. But a bigger clue was that I've done this myself and I recognized the narrow line.

[dunbarx]

Jacque.

I learn that way as well.

But he didn't say that the left of a particular control was 10 and its right was then set at -33, he set the right of one control to the left of a different control. Of course if that field value set the right of a control to a value to the left of its left, it would do just that, make a line.

This only means that you are much more clever than you thought.

Craig

[sturgis]

Actually, setting the right of an object or the left of an object simply moves an existing object and doesn't change its size. Like setting the left of button 1 to the left of this card just moves it to the edge of the card. You would actually have to set the width of the object or change the rect of the object to end up at a negative width.

Having said that, if the line is being created elsewhere (it must be), and set to a negative width, you're still right on the money. Always using abs() when setting up the graphic would solve it easily.

If that is NOT the case, and its working in a group with the locloc set, chances are that the rest of the bar is outside the rect of the group, and thus not showing. An easy way to visually see if this is the case would be to turn on the scrollbars for the group and scroll it around.

[jacque]

Urf. I had a thinko. You're all correct of course about setting one side only. I recognized the symptom and my mind short-circuited, connecting "right" to "item 3 of the rect". I need to take myself in for an overhaul.

[dunbarx]

Thinko?

Is that like a brain fart?

Craig

[sturgis]

I thought it was like "think or thwim" ThinkO for short.

[SparkOut]

Like typo is short for typographical error. Thinko is short for thinkographical error.

[sturgis]

Ok. I'm stealing that. I thinko quite often.

[jacque]

Is that like a brain fart?

Yes, but on a much higher level. I first heard it from our mutual friend Cat back on the HC list when I made a similar slip. I was so taken with it that, like Sturgis, I stole it immediately. And I've been waiting 25 years to use it.

[SparkOut]

The longhand (thinkographical error) is ever so cromulent.