On Tue, Jun 10, 2008 at 2:39 PM, Greg Ercolano <[EMAIL PROTECTED]> wrote:
> MacArthur, Ian (SELEX GALILEO, UK) wrote:
>>> my idea is that i want to have 3 large buttons aligned
>>> vertically on the left half of a screen, and on the right
>>> half i want to have an Fl_Help view widget, that changes it
>>> contents while i mouse-over the buttons. the idea is that the
>>> user might choose the button that he wants to press depending
>>> on the right hand side content, and only then press the
>>> button to start loading some stuff / level / etc.
>>
>> I assume you need more info than is readily displayed in a simple
>> tooltip?
>
> Yes, I've seen this kind of thing the OP describes to avoid
> the relatively "distracting" tooltips. Basically a 'status bar'
> equivalent for help text.. definitely a bit less distracting,
> though always takes up a fixed screen space.
>
> I used this in Shadetree, having seen it used on the old Symbolics
> systems. Some 3D programs use this too in place of tooltips, like Maya.
>
> Should be fine to do that, I figure detecting FL_ENTER/FL_LEAVE
> events for the buttons should do the trick. Deriving a class from
> the buttons should do the trick.. just pass in the widget pointer
> to the main app's text widget as the 'userdata', and it should be
> fairly easy.
Here is a bit of code from my fl_teachertool project which might help
class MyButton : public Fl_Button {
private:
char hint[160];
Fl_Widget* statusbar;
public:
MyButton(int x, int y, int w, int h, const char* l): Fl_Button(x,
y, w, h, l) {
strcpy(hint," ");
}
void set_hint(Fl_Widget* sb, const char *h) {
statusbar = sb;
strcpy(hint,h);
}
int handle(int event) {
int ret = Fl_Button::handle(event);
switch (event) {
case FL_ENTER:
statusbar->label(hint);
color(FL_BLUE);
redraw();
break;
case FL_LEAVE:
statusbar->label(" ");
color(FL_WHITE);
redraw();
break;
}
return (ret);
}
};
--
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada
Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/
C++ GUI tutorial http://www3.telus.net/public/robark/
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