[openbeos] Re: BTextControl Question
- From: Zenja Solaja <solaja@xxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Wed, 30 Jan 2002 14:55:31 +1100
MakeEditable is not what you need. You want
ftextcontrol->SetEnabled(false). In your example, simply try:
bankdisplay[i].SetEnabled(false);
Simple. Questions like these really need to go on the new BeDevTalk list
(Bruno or Daniel - please provide link).
Take care everyone.
> -----Original Message-----
> From: Travis Beaty [SMTP:travis_beaty@xxxxxxxxxxxxx]
> Sent: Wednesday, January 30, 2002 2:46 PM
> To: openbeos@xxxxxxxxxxxxx
> Subject: [openbeos] BTextControl Question
>
> Hello All!
>
> I'm a newbie BeOS programmer (well, actually, OBOS programmer now!), and
> I'm also fairly new to
> programming in C++.
>
> As a "starter" project for learning BeOS programming, I've decided to
> create a Polish notation calculator. Part
> of this calculator consists of four "banks," which hold values to be
> manipulated by the calculator. The bottom
> bank, "W," should be editable, so that the user can enter values (like a
> normal calculator). The remainder of
> the banks may not be edited by the user.
>
> I've decided to implement the bank displays with BTextControls. In
> Windows (sorry I'm being obscene on the
> list, hehehe), I'd like to give the text controls the ES_READONLY flag.
> This is how I've tried to do it in my code,
> using BTextView :: MakeEditable():
>
> // START OF CODE
>
> BTextControl
> *bank_display[4];
> // (A field within the parent window's class).
>
> // Excerpts from the parent window's class constructor ...
>
> // labels for the bank displays.
> const char
> bank_lbl[4][3] = {"Z:", "Y:", "X:", "W:"};
>
> // Location of next bank display control and reset button.
> BRect
> bank_rect(5, 28, 155, 20),
> button_rect(160, 25, 220, 20);
>
> // ...
>
> for(int i = 0; i < 4; i++) {
>
> // Build a bank display TextControl and initialize it.
> bank_display[i] = new BTextControl(
> bank_rect, NULL, bank_lbl[i], "Hello!", new BMessage(-1),
> B_FOLLOW_LEFT | B_FOLLOW_TOP, B_WILL_DRAW | B_NAVIGABLE);
>
> bank_display[i]->SetDivider(20);
> bank_display[i]->SetAlignment(B_ALIGN_LEFT, B_ALIGN_RIGHT);
> if(i != 3) bank_display[i]->TextView()->MakeEditable(false);
>
> // Increment the top and bottom members of bank_rect to set the
> // values up for the next control.
> bank_rect.top += 25;
> bank_rect.bottom += 25;
>
> }
>
> (Sorry if the formatting is messed up ... I have a bad problem with my
> code getting scrambled somewhere
> between my computer and your computer.)
>
> Unfortunately, when running the application, all text controls are still
> editable, and the call to MakeEditable()
> does not appear to have any affect. However, the calls to SetDivider()
> and SetAlignment() appear to work as
> advertised. This is either due to my lack of knowledge concerning the
> BeOS API, my lack of knowledge
> concerning C++, or a hideous combination of the two.
>
> Any help would be greatly appreciated.
>
> Travis Beaty
> Evans, Colorado.
>
>
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