Hi,
TLatex support the text splitting. Try:
{
gROOT->Reset();
TCanvas *c1 = new TCanvas("c1","splittext",600,600);
TLatex l(0.5,0.5,"#splitline{First line}{Second line}");
l.SetTextFont(42); l.SetTextSize(0.05);
l.Draw();
}
I have tried the following example to simulate the seg fault you get with
long text but for me it work (ROOT 4.00/03 on linux)
{
gROOT->Reset();
TCanvas *c1 = new TCanvas("c1","longtext",600,600);
TText t(0.1,0.5,"ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz0123456789
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
t.SetTextFont(42); t.SetTextSize(0.015);
t.Draw();
}
Cheers, Olivier
On Fri, 16 Apr 2004, Bernd REINHOLD wrote:
> Hi!
>
> I'd like to display a TText within a TPad. But the TText is bigger than
> TPad. Is there something like an option 'auto-wrap'? Does TText display
> text only in one line? Is there a multiple-line version of TText?
> I tried to use TPaveText, also, but didn't succeed. (see below for the
> code I used, probably you can give me some hints for improvement)
>
> And: Is there a limit for the length of the (C)string, that TText can
> take (I got a segmentation violation) with a longer Cstring.
>
> I use root 3.10.02 an CERN RedHat 7.3...
>
>
> the code: I tried different variations of that...
> SQL_Date is a subpad of a canvas (this works)
> TPad *SQL_Date = new TPad("SQL_Date", "SQL and date",.02,.3,.98,.49);
> SQL_Date->Draw();
> SQL_Date->cd();
>
> TPaveText *SQLLabel=new TPaveText(.02,.02,.98,.98, "NDC");
> TText *t1= SQLLabel->AddText(strSQLstring.c_str());
> t1->SetTextSize(0.07);
> SQLLabel->Draw();
> t1->Draw();
> SQL_Date->Update();
> SQL_Date->Modified();
> c1->Update();
>
> found now, that this might be due to the textColor (white!!!). Now I can
> see the t1, but still it is a TText, still it's only one line...
>
> another try:
> TPad *SQL_Date = new TPad("SQL_Date", "SQL and date",.02,.3,.98,.49);
> SQL_Date->Draw();
> SQL_Date->cd();
>
> TText* Comment=new TText(0.04,0.2, strComment.c_str());
> Comment->SetTextSize(0.07);
> Comment->Draw();
> SQL_Date->Modified();
> c1->Update();
>
> this drew both SQL_Date and inside the Comment, but it was too long (no
> auto-wrap)
>
>
--
Org: CERN - European Laboratory for Particle Physics.
Mail: 1211 Geneve 23 - Switzerland Mailbox: J25910
E-Mail: Olivier.Couet@cern.ch Phone: +41 22 7676522
WWW: http://cern.ch/Olivier.Couet/ Fax: +41 22 7677155
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