Modify the color of a TGTextLBEntry in a TGListBox

ROOT
,
1

Hi,

How can I modify the color of an entry (in red for example) in a TGListBox ? I have succeed to modify the font using :

const TGFont *ufont;         // will reflect user font changes
ufont = gClient->GetFont("-adobe-courier-medium-r-*-*-18-*-*-*-*-*-iso8859-1");
if (!ufont)
   ufont = fClient->GetResourcePool()->GetDefaultFont();

TGGC   *uGC;           // will reflect user GC changes
// graphics context changes
GCValues_t val;
val.fMask = kGCFont;
val.fFont = ufont->GetFontHandle();
uGC = gClient->GetGC(&val, kTRUE);

TGTextLBEntry *entry;
char tmp[20];
for (int i = 0; i < 10; ++i) {
   sprintf(tmp, "Entry %i", i+1);
   entry = new TGTextLBEntry(fHistoryBox->GetContainer(), new TGString(tmp), i*10, uGC->GetGC(), ufont->GetFontStruct());
   fHistoryBox->AddEntry((TGLBEntry *)entry, new TGLayoutHints(kLHintsTop | kLHintsLeft));
}

But I have no idea if it is possible to modify the color.

Thanks in advance

2

Hi,

Not sure… I’ll check and let you know.

Cheers, Bertrand.

3

Try (for example):

   entry->SetBackgroundColor((Pixel_t)0xd0ffd0);

And BTW, you should also add kLHintsExpandX when adding the entry:

fListBox->AddEntry((TGLBEntry *)entry, new TGLayoutHints(kLHintsTop | kLHintsLeft |
                                                         kLHintsExpandX));

See for example:
image

Cheers, Bertrand.

4

Hi,

Thank you for the help. But this change the background, not the text color. BTW it could be ok for me, but how can I do know what adress corresponds to what color ? (0xd0ffd0 for green I guess in your example)

J.

5

Oh sorry, I overlooked at your question… I’ll check and let you know. And in my example, I simply used the hexadecimal representation of the color (RGB)

6

So strangely enough, you cannot change the text color (only the background)…

Cheers, Bertrand.

7

Ok, does’nt matter. Thank’s for the help

J.