Re: Add Gtk::TextView to Gtk::Grid
Rodolfo Ribeiro Gomes via gtkmm-list <[email protected]> Thu, 6 Oct 2022 08:00:07 -0300
| Newsgroups | gmane.comp.gnome.gtkmm |
|---|---|
| Message-ID | <CADvm5Jow=w6MTcGoizWTZo5TXry8HONZ8SP4XZ=t=uC3FY7gaw@mail.gmail.com> |
--===============5885095524682700549== Content-Type: multipart/alternative; boundary="00000000000041328b05ea5b999a" --00000000000041328b05ea5b999a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable If you are gtkmm3, widgets are hidden by default. You should call Gtk::Container::show_all_children() or Gtk::Widget::show_all(). AFAIK, in gtkmm4 this isn't necessary anymore, as widgets are (finally) visible by default. Em qui., 6 de out. de 2022 =C3=A0s 07:33, Bill Greene via gtkmm-list < [email protected]> escreveu: > Thanks for taking a look at this. > > Unfortunately, even after I make the TextView a class member, I still > don't see the text displayed in the window. > A concise description of the problem is this: > If I make the TextView a child of the window, the text is displayed. If I > make the TextView a child of a Grid, and the > Grid a child of the window, the text is not displayed. > > I am assuming there might be some property of the Grid I need to set? > > On Wed, Oct 5, 2022 at 12:40 PM Kjell Ahlstedt <[email protected]> > wrote: > >> You have declared the TextView as a local variable in the constructor. >> It will be deleted when the constructor finishes. You must either >> declared it in your window class, like the buttons in >> >> >> https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master/example= s/book/grid/examplewindow.h >> >> or create it with Gtk::make_managed() in the constructor, like the butto= n >> in >> >> >> https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master/example= s/book/scrolledwindow/examplewindow.cc >> >> Den 2022-10-05 kl. 17:00, skrev Bill Greene via gtkmm-list: >> > I am trying to add a TextView instance to a Grid. But when I display >> > the window, it is >> > empty. The Grid examples I have seen add buttons to the grid and these >> > work fine >> > for me. But I don't understand the difference between adding a button >> > and adding >> > a TextView. If anyone can help me with this, I would appreciate it. >> > >> > Here is my sample code (part of the constructor for my window): >> > >> > set_child(m_grid); >> > Gtk::TextView tc; >> > Glib::RefPtr<Gtk::TextBuffer> tb =3D Gtk::TextBuffer::create(); >> > std::string msg("cell 1,1"); >> > auto it =3D tb->insert(tb->begin(), msg); >> > tc.set_buffer(tb); >> > m_grid.attach(tc, 0, 0); >> > m_grid.set_visible(); >> > >> > >> > _______________________________________________ > gtkmm-list mailing list > [email protected] > https://mail.gnome.org/mailman/listinfo/gtkmm-list > --00000000000041328b05ea5b999a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>If you are gtkmm3, widgets are hidden by default.</di= v><div>You should call Gtk::Container::show_all_children() or Gtk::Widget::= show_all().</div><div><br></div><div>AFAIK, in gtkmm4 this isn't necess= ary anymore, as widgets are (finally) visible by default.<br></div></div><b= r><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">Em qui.,= 6 de out. de 2022 =C3=A0s 07:33, Bill Greene via gtkmm-list <<a href=3D= "mailto:[email protected]">[email protected]</a>> escreveu:<br></d= iv><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bord= er-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">Thank= s for taking=C2=A0a look at this.<div><br></div><div>Unfortunately, even af= ter=C2=A0I make the TextView=C2=A0 =C2=A0a class member, I still don't = see the text displayed in the=C2=A0window.</div><div>A concise description= =C2=A0of the problem is this:=C2=A0</div><div>If I make the TextView a chil= d of the window, the text is displayed. If I make the TextView a child of a= Grid, and the</div><div>Grid a child of the window, the text is not displa= yed.</div><div><br></div><div>I am assuming there might be some property of= the Grid I need to set?</div></div><br><div class=3D"gmail_quote"><div dir= =3D"ltr" class=3D"gmail_attr">On Wed, Oct 5, 2022 at 12:40 PM Kjell Ahlsted= t <<a href=3D"mailto:[email protected]" target=3D"_blank">kjellahl= [email protected]</a>> wrote:<br></div><blockquote class=3D"gmail_quote" s= tyle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pad= ding-left:1ex">You have declared the TextView=C2=A0 as a local variable in = the constructor. <br> It will be deleted when the constructor finishes. You must either <br> declared it in your window class, like the buttons in<br> <br> <a href=3D"https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master= /examples/book/grid/examplewindow.h" rel=3D"noreferrer" target=3D"_blank">h= ttps://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master/examples/bo= ok/grid/examplewindow.h</a><br> <br> or create it with Gtk::make_managed() in the constructor, like the button i= n<br> <br> <a href=3D"https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master= /examples/book/scrolledwindow/examplewindow.cc" rel=3D"noreferrer" target= =3D"_blank">https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/maste= r/examples/book/scrolledwindow/examplewindow.cc</a><br> <br> Den 2022-10-05 kl. 17:00, skrev Bill Greene via gtkmm-list:<br> > I am trying to add a=C2=A0TextView instance to a Grid. But when I disp= lay <br> > the window, it is<br> > empty. The Grid examples I have seen add buttons to the grid and these= <br> > work fine<br> > for me. But I don't understand the difference between adding a but= ton <br> > and adding<br> > a TextView. If anyone can help me with this, I would=C2=A0appreciate i= t.<br> ><br> > Here is my sample code (part of the constructor for my window):<br> ><br> > =C2=A0 set_child(m_grid);<br> > =C2=A0 Gtk::TextView tc;<br> > =C2=A0 Glib::RefPtr<Gtk::TextBuffer> tb =3D Gtk::TextBuffer::cre= ate();<br> > =C2=A0 std::string msg("cell 1,1");<br> > =C2=A0 auto it =3D tb->insert(tb->begin(), msg);<br> > =C2=A0 tc.set_buffer(tb);<br> > =C2=A0 m_grid.attach(tc, 0, 0);<br> > =C2=A0 m_grid.set_visible();<br> ><br> ><br> </blockquote></div> _______________________________________________<br> gtkmm-list mailing list<br> <a href=3D"mailto:[email protected]" target=3D"_blank">gtkmm-list@gnome.= org</a><br> <a href=3D"https://mail.gnome.org/mailman/listinfo/gtkmm-list" rel=3D"noref= errer" target=3D"_blank">https://mail.gnome.org/mailman/listinfo/gtkmm-list= </a><br> </blockquote></div> --00000000000041328b05ea5b999a-- --===============5885095524682700549== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ gtkmm-list mailing list [email protected] https://mail.gnome.org/mailman/listinfo/gtkmm-list --===============5885095524682700549==--