Hello,
>From my experience with Gtk's set_usize() methods, I find it very
useful to be able to set the minimum size of some/all of the widgets
in an app. This allows the app to never be resized so small as to
have widgets disappear or otherwise become unusable.
I think TG classes would benifit from this idea, particularly classes
like TRootEmbeddedCanvas which emits warning messages if the canvas
size goes to zero.
As far as I have found, there is no such mechanism in TG (right?), but
I think it would be pretty easy to add. It only needs a couple of
UInt_t's to hold the mins, some accessor methods and a copy of lines
in the Resize() related methods (unless I miss something). Ie:
void TGFrame::SetMinSize(UInt_t minw, UInt_t minh)
{
fMinWidth = minw;
fMinHeight = minh;
}
void TGFrame::Resize(UInt_t w, UInt_t h)
{
// Resize the frame.
// Assure min size, but only check if fMinXxx is non-zero
if (fMinWidth && w < fMinWidth) w = fMinWidth;
if (fMinHeight && h < fMinHeight) h = fMinHeight;
if (w != fWidth || h != fHeight) {
TGWindow::Resize(w, h);
fWidth = w; fHeight = h;
Layout();
}
}
void TGFrame::MoveResize(...)
{
... similar ...
}
-Brett.
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