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1. Trying to center labels.

#4747

Posted by: 2004-07-07 19:57:20

Hi. I'm trying to do a label centered for the top of my frame. I've tryied several methods, but non of them center the Text on the panel. Could you help me?

//Creacion y adiccion de la etiqueta superior.

wxPanel* prenault = new wxPanel(this, -1, wxPoint(0,0), wxDefaultSize,
   0);
prenault->SetBackgroundColour(wxColour(230,230,0));

//renault->SetWindowStyle(wxALIGN_CENTRE);
//renault->Center();

wxLayoutConstraints *rc = new wxLayoutConstraints;
rc->centreX.SameAs    (this, wxCentreX);
rc->top.SameAs        (this, wxTop);
rc->width.SameAs      (this, wxWidth);
rc->height.Absolute     (20);

prenault->SetConstraints(rc);

wxStaticText* renault = new wxStaticText(prenault, -1, "Patrocinado por Renault F1");

wxLayoutConstraints *rl = new wxLayoutConstraints;
rl->centreX.SameAs    (prenault, wxCentreX);
//rl->top.SameAs        (this, wxTop);
//rl->width.SameAs      (this, wxWidth);
rl->height.SameAs     (prenault, wxHeight);

renault->SetConstraints(rl);
// wxPoint(20,-1), wxDefaultSize, wxALIGN_CENTRE, "Patrocinado por Renault F1");
//wxStaticText* renault = new wxStaticText(prenault, -1, "Patrocinado por Renault F1",
// wxPoint(this->GetSize().GetWidth()/2,0), wxDefaultSize, wxALIGN_RIGHT);

//renault->SetPosition(0,0);
//renault->CenterOnParent(1);
//renault->Refresh();

2. Re: Trying to center labels.

#4753

Posted by: upCASE 2004-07-08 01:38:28

Hi!
Use wxSizer instead. wxLayoutConstraint is considered deprecated.

upCASE
-----------------------------------
If it was hard to write, it should be hard to read!- Do. Or do not. There is no try!

3. Re: Trying to center labels.

#4777

Posted by: 2004-07-10 02:39:52

I've used sizers instead, but nothing changes. Could someone give me an example in which a label(Panel with StaticText inside) is centered, and when you resize the window, the resized panel contains the StaticText newly centered?

4. Re: Trying to center labels.

#4784

Posted by: upCASE 2004-07-10 22:59:47

Hi!
Everything changes with sizers :)

#include <wx/wx.h>
#include <wx/image.h>

#ifndef MYFRAME_H
#define MYFRAME_H

class MyFrame: public wxFrame {
    wxStaticText* label;
    wxPanel* panel;
public:
    MyFrame(wxWindow* parent, int id, const wxString& title, const wxPoint& pos=wxDefaultPosition, const wxSize& size=wxDefaultSize, long style=wxDEFAULT_FRAME_STYLE);
};
#endif // MYFRAME_H

#include "MyFrame.h"
MyFrame::MyFrame(wxWindow* parent, int id, const wxString& title, const wxPoint& pos, const wxSize& size, long style):
    wxFrame(parent, id, title, pos, size, wxDEFAULT_FRAME_STYLE)
{
    panel = new wxPanel(this, -1);
    label = new wxStaticText(panel, -1, wxT("I am the label"), wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE);

    SetTitle(wxT("Frame"));
    
    wxBoxSizer* topSizer = new wxBoxSizer(wxVERTICAL);
    wxBoxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
    sizer->Add(label, 1, wxALIGN_CENTER_VERTICAL, 0);
    panel->SetAutoLayout(true);
    panel->SetSizer(sizer);
    sizer->Fit(panel);
    sizer->SetSizeHints(panel);
    topSizer->Add(panel, 1, wxEXPAND, 0);
    SetAutoLayout(true);
    SetSizer(topSizer);
    topSizer->Fit(this);
    topSizer->SetSizeHints(this);
    Layout();
}

upCASE
-----------------------------------
If it was hard to write, it should be hard to read!- Do. Or do not. There is no try!

5. Re: Trying to center labels.

#4808

Posted by: 2004-07-13 03:58:08

Thanks a lot! That's been really helpful for me!

6. Re: Trying to center labels.

#4810

Posted by: upCASE 2004-07-13 17:06:47

Hi!
You're welcome!
Working and understanding sizers is one of the hard parts when working with wxWidgets. Although I know how they work in general, it's a lot easier to use a tool like wxGlade to create the first scetches of a GUI.

upCASE
-----------------------------------
If it was hard to write, it should be hard to read!- Do. Or do not. There is no try!

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