src/generic/panelg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        panelg.cpp
   3 // Purpose:     wxPanel
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:           wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "panelg.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/object.h"
  25 #include "wx/font.h"
  26 #include "wx/colour.h"
  27 #include "wx/settings.h"
  28 #endif
  29
  30 #include "wx/generic/panelg.h"
  31
  32 #if !USE_SHARED_LIBRARY
  33 IMPLEMENT_DYNAMIC_CLASS(wxPanel, wxWindow)
  34
  35 BEGIN_EVENT_TABLE(wxPanel, wxWindow)
  36   EVT_SYS_COLOUR_CHANGED(wxPanel::OnSysColourChanged)
  37   EVT_NAVIGATION_KEY(wxPanel::OnNavigationKey)
  38 END_EVENT_TABLE()
  39
  40 #endif
  41
  42 wxPanel::wxPanel()
  43 {
  44 }
  45
  46 bool wxPanel::Create(wxWindow *parent, wxWindowID id,
  47                      const wxPoint& pos,
  48                      const wxSize& size,
  49                      long style,
  50                      const wxString& name)
  51 {
  52     bool ret = wxWindow::Create(parent, id, pos, size, style, name);
  53
  54     if ( ret )
  55     {
  56 #ifndef __WXGTK__
  57         SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  58         SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
  59 #endif
  60     }
  61
  62     return ret;
  63 }
  64
  65 void wxPanel::InitDialog(void)
  66 {
  67     wxInitDialogEvent event(GetId());
  68     event.SetEventObject(this);
  69     GetEventHandler()->ProcessEvent(event);
  70 }
  71
  72 // Responds to colour changes, and passes event on to children.
  73 void wxPanel::OnSysColourChanged(wxSysColourChangedEvent& event)
  74 {
  75     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  76     Refresh();
  77
  78     // Propagate the event to the non-top-level children
  79     wxWindow::OnSysColourChanged(event);
  80 }
  81
  82 void wxPanel::OnNavigationKey( wxNavigationKeyEvent& event )
  83 {
  84     // there is not much to do if we have only one child (or not at all)
  85     if (GetChildren().GetCount() < 2)
  86     {
  87         event.Skip();
  88         return;
  89     }
  90
  91     // don't process these ones here
  92     if (event.IsWindowChange())
  93     {
  94         event.Skip();
  95         return;
  96     }
  97
  98     wxWindow *winFocus = event.GetCurrentFocus();
  99     if (!winFocus)
 100         winFocus = wxWindow::FindFocus();
 101
 102     if (!winFocus)
 103     {
 104         event.Skip();
 105         return;
 106     }
 107
 108     wxNode *start_node = GetChildren().Find( winFocus );
 109     if (!start_node)
 110         start_node = GetChildren().First();
 111
 112     wxNode *node = event.GetDirection() ? start_node->Next()
 113                                         : start_node->Previous();
 114
 115     while (node != start_node)
 116     {
 117         if (!node)
 118         {
 119 #if 0
 120             if (GetParent() != NULL)
 121             {
 122                 wxNavigationKeyEvent new_event;
 123                 new_event.SetDirection( event.GetDirection() );
 124                 new_event.SetWindowChange(FALSE);
 125                 new_event.SetCurrentFocus( this );
 126
 127                 if (GetParent()->GetEventHandler()->ProcessEvent(new_event))
 128                 {
 129                     return;
 130                 }
 131             }
 132 #endif // 0
 133
 134             node = event.GetDirection() ? GetChildren().First()
 135                                         : GetChildren().Last();
 136         }
 137
 138         wxWindow *child = (wxWindow *)node->Data();
 139
 140         if (child->AcceptsFocus())
 141         {
 142             // ok, event processed
 143             child->SetFocus();
 144             return;
 145         }
 146
 147         node = event.GetDirection() ? node->Next() : node->Previous();
 148     }
 149
 150     // we cycled through all of our children and none of them wanted to accept
 151     // focus
 152     event.Skip();
 153 }
 154