Use tab and shift-tab to navigate out of a wxStyledTextCtrl within a wxPanel - wxwidgets

Question

I am attempting to make a wxWidgets application, specifically poEdit, more accessible using the keyboard. There is a wxPanel that contains three controls; a combo box, a button, and a read only wxStyledTextCtrl. The problem is that once focus gets into the wxStyledTextCtrl it is impossible to move back to the other controls using the keyboard. I want to be able to tab out of the wxStyledTextCtrl back to the combo box. Thus far I have tried calling SetTabIndents(false) but that did not help.
Any ideas?

Answer 1

I have figured out the answer to my own question. I did end up sub classing the wxStyledTextCtrl class and overriding the MSWWindowProc function to customize the processing of the WM_GETDLGCODE message to clear the DLGC_WANTALLKEYS and DLGC_WANTTAB bits. The code I used is as follows.
The code I used to do this is as follows.
<myStc.h>
#include <wx/stc/stc.h>
class myWxStyledTextCtrl : public wxStyledTextCtrl
{
public:
DECLARE_DYNAMIC_CLASS(myWxStyledTextCtrl);
myWxStyledTextCtrl(
wxWindow* parent, wxWindowID id = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize, long style = 0,
const wxString& name = wxSTCNameStr);
myWxStyledTextCtrl();
void SetUseTabToNavigate(bool useTabToNavigate);
#ifdef __WXMSW__
// special Windows message handling
virtual WXLRESULT MSWWindowProc(
WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
#endif
DECLARE_EVENT_TABLE();
private:
bool m_useTabToNavigate;
};
</myStc.h>
<myStc.cpp>
#include "myStc.h"
IMPLEMENT_DYNAMIC_CLASS(myWxStyledTextCtrl, wxStyledTextCtrl);
BEGIN_EVENT_TABLE(myWxStyledTextCtrl, wxStyledTextCtrl)
END_EVENT_TABLE()
myWxStyledTextCtrl::myWxStyledTextCtrl(
wxWindow* parent, wxWindowID id /*= wxID_ANY*/,
const wxPoint& pos /*= wxDefaultPosition*/,
const wxSize& size /*= wxDefaultSize*/, long style /*= 0*/,
const wxString& name /*= wxSTCNameStr*/) :
wxStyledTextCtrl(parent, id, pos, size, style, name)
{
m_useTabToNavigate = false;
}
myWxStyledTextCtrl::myWxStyledTextCtrl() :
wxStyledTextCtrl()
{
m_useTabToNavigate = false;
}
void myWxStyledTextCtrl::SetUseTabToNavigate(bool useTabToNavigate)
{
m_useTabToNavigate = useTabToNavigate;
}
#ifdef __WXMSW__
WXLRESULT myWxStyledTextCtrl::MSWWindowProc(
WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
WXLRESULT ret = wxStyledTextCtrl::MSWWindowProc(nMsg, wParam, lParam);
if (!m_useTabToNavigate)
{
return ret;
}
if (nMsg == WM_GETDLGCODE)
{
ret &= ~(DLGC_WANTALLKEYS | DLGC_WANTTAB);
}
return ret;
}
#endif
</myStc.cpp>
I may figure out a solution that will work for other operating systems at some point in the future.