hi,
I wrote a navigator that creates subframes and buttons and attaches logic
to them, so that it knows which frames to show after a button has been
pushed. In that environment, I would like to create a TGFrame, that is
child to a TGCompositeFrame and delete it later, in case I find that
an identical TGFrame already exist. For some reasons I get a blank
rectangular region in the TGCompositeFrame if I delete/don't add the frame
to it. See an example macro below.
How can I get back to the state before I created the childframe?
(I tried any variation of TGCompositeFrame::RemoveFrame(..) & co., but
nothing worked)
thanks for any help,
Judith
{
TGLayoutHints *lht = new TGLayoutHints( kLHintsTop, 2, 2, 2, 2);
TGLayoutHints *lhl = new TGLayoutHints( kLHintsLeft, 2, 2, 2, 2);
TGMainFrame *mf = new TGMainFrame(gClient->GetRoot(),200,200);
TGVerticalFrame *vfr = new TGVerticalFrame(mf, 100,100);
mf->AddFrame(vfr);
TGHorizontalFrame *hfr = new TGHorizontalFrame(vfr, 100,100);
TGTextButton *b1 = new TGTextButton(hfr,"horizontal1");
hfr->AddFrame(b1,lhl);
TGTextButton *b2 = new TGTextButton(hfr,"horizontal2");
hfr->AddFrame(b2,lhl);
vfr->AddFrame(hfr, lht);
Char_t name[25];
for(int i=0; i<=3; i++)
{
sprintf(name,"test%d",i);
TGVerticalFrame *vfr1 = new TGVerticalFrame(vfr, 100,100);
TGTextButton *b = new TGTextButton(vfr1,name);
vfr1->AddFrame(b,lhl);
// if I use this line instead of the following 2 lines I see the full
// picture:
//vfr->AddFrame(vfr1,lht);
// if I don't add the frame using this 2 lines I'll get a blank area:
if(i!=1) vfr->AddFrame(vfr1,lht);
else delete vfr1;
}
mf->Resize(200,200);
mf->MapSubwindows();
mf->ShowFrame(vfr);
mf->MapRaised();
}
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