src/gtk/control.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        control.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "control.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/defs.h"
  18
  19 #if wxUSE_CONTROLS
  20
  21 #include "wx/control.h"
  22
  23 #include <gtk/gtk.h>
  24
  25 //-----------------------------------------------------------------------------
  26 // wxControl
  27 //-----------------------------------------------------------------------------
  28
  29 IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
  30
  31 wxControl::wxControl()
  32 {
  33     m_needParent = TRUE;
  34 }
  35
  36 bool wxControl::Create( wxWindow *parent,
  37                       wxWindowID id,
  38                       const wxPoint &pos,
  39                       const wxSize &size,
  40                       long style,
  41                       const wxValidator& validator,
  42                       const wxString &name )
  43 {
  44     bool ret = wxWindow::Create(parent, id, pos, size, style, name);
  45
  46 #if wxUSE_VALIDATORS
  47     SetValidator(validator);
  48 #endif
  49
  50     return ret;
  51 }
  52
  53 void wxControl::SetLabel( const wxString &label )
  54 {
  55     m_label.Empty();
  56     for ( const wxChar *pc = label; *pc != wxT('\0'); pc++ )
  57     {
  58         if ( *pc == wxT('&') )
  59         {
  60             pc++; // skip it
  61 #if 0 // it would be unused anyhow for now - kbd interface not done yet
  62             if ( *pc != wxT('&') ) m_chAccel = *pc;
  63 #endif
  64         }
  65         m_label << *pc;
  66     }
  67 }
  68
  69 wxString wxControl::GetLabel() const
  70 {
  71     return m_label;
  72 }
  73
  74
  75 wxSize wxControl::DoGetBestSize() const
  76 {
  77     // Do not return any arbitrary default value...
  78     wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
  79
  80     GtkRequisition req;
  81     req.width = 2;
  82     req.height = 2;
  83     (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request )
  84         (m_widget, &req );
  85
  86     return wxSize(req.width, req.height);
  87 }
  88
  89 #ifdef __WXGTK20__
  90 wxString wxControl::PrepareLabelMnemonics( const wxString &label ) const
  91 {
  92     //Format mnemonics properly for GTK2. This can be called from GTK1.x, but
  93     //it's not very useful because mnemonics don't exist prior to GTK2.
  94     wxString label2;
  95     for (size_t i = 0; i < label.Len(); i++)
  96     {
  97         if (label.GetChar(i) == wxT('&'))
  98         {
  99             //Mnemonic escape sequence "&&" is a literal "&" in the output.
 100             if (label.GetChar(i + 1) == wxT('&'))
 101             {
 102                 label2 << wxT('&');
 103                 i++;
 104             }
 105             //Handle special case of "&_" (i.e. "_" is the mnemonic).
 106             //FIXME - Is it possible to use "_" as a GTK mnemonic? Just use a
 107             //dash for now.
 108             else if (label.GetChar(i + 1) == wxT('_'))
 109             {
 110                 label2 << wxT("_-");
 111                 i++;
 112             }
 113             //Replace WX mnemonic indicator "&" with GTK indicator "_".
 114             else
 115             {
 116                 label2 << wxT('_');
 117             }
 118         }
 119         else if (label.GetChar(i) == wxT('_'))
 120         {
 121             //Escape any underlines in the string so GTK doesn't use them.
 122             label2 << wxT("__");
 123         }
 124         else
 125         {
 126             label2 << label.GetChar(i);
 127         }
 128     }
 129     return label2;
 130 }
 131 #endif
 132
 133 #endif // wxUSE_CONTROLS
 134