> Gary Hui Zhang wrote:
>
> > I figure that a natural way of remedying this is to add a callback to each
> > tab to execute the hide() explicitly.
>
> That shouldn't be necessary. The Fl_Tabs widget does exactly that when
> you select a tab: it show()s its group and hides any other contained groups.
This was my understanding but it doesn't appear to work, at least on MacOSX.
> > But it appears that the callback inserted never gets called. Here is the
> > actual code:
> >
> > Fl_Tabs m_LayerUITabs {open
> > xywh {180 5 390 475} box PLASTIC_THIN_UP_BOX color 41
> > } {
> > Fl_Group m_ImageContrastTab {
> > label Contrast open selected
> > callback {this->DisplayImageContrastTab();}
> > xywh {180 25 390 455} labelsize 12
> > } { .... }
> >
> > Note the callback for the tab (Fl_Group m_ImageContrastTab). That function
> > does not get called when I select the tab ...
> >
> > Is this the correct behavior?
>
> If you want a callback to be called when you change the tabs, then you
> must set it for the Fl_Tabs widget. Its value() is the currently
> selected group.
Thanks very much for the correction. I added the callback for Fl_tabs and use
value() to conditionally call different hide() functions. Everything now works
nicely.
> >> I don't know if this is a GL specific problem (may be), but problems
> >> like this one often have a common cause that the groups that are
> >> contained in the tabs don't fill the tab group area completely (except
> >> the tab area itself). Please check, if this could be the case in your
> >> program.
> >
> > Do you think the code above suffering from the problem you described?
>
> The Fl_Tabs and the contained group look okay for me (but I can't really
> "read" and understand fluid code well, because I never use it). However,
> the important part is missing: Is your GL window within the limits of
> its containing group (in this case: xywh {180 25 390 455}) ?
It looks like things are within the bound. Here are the two GL drawing areas
on two different tabs.
Fl_Box m_BoxCurve {
label {Curve Display Area}
xywh {210 135 340 180} box BORDER_BOX color 246 labelfont 1
labelsize 12 align 16
code0 {\#include "IntensityCurveBox.h"}
class IntensityCurveBox
}
Fl_Box m_BoxColorMap {
label {OpenGL Colormap Display}
xywh {200 143 350 69} box BORDER_BOX color 246 labelfont 1
labelsize 12
code0 {\#include "ColorMapWidget.h"}
class ColorMapWidget
}
Gary
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