src/os2/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dialog.cpp
   3 // Purpose:     wxDialog class
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "dialog.h"
  14 #endif
  15
  16 #include "wx/dialog.h"
  17 #include "wx/utils.h"
  18 #include "wx/frame.h"
  19 #include "wx/app.h"
  20 #include "wx/settings.h"
  21
  22 // Lists to keep track of windows, so we can disable/enable them
  23 // for modal dialogs
  24 wxList wxModalDialogs;
  25 wxList wxModelessWindows;  // Frames and modeless dialogs
  26 extern wxList wxPendingDelete;
  27
  28 #if !USE_SHARED_LIBRARY
  29 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
  30
  31 BEGIN_EVENT_TABLE(wxDialog, wxPanel)
  32   EVT_BUTTON(wxID_OK, wxDialog::OnOK)
  33   EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
  34   EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
  35   EVT_CHAR_HOOK(wxDialog::OnCharHook)
  36   EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)
  37   EVT_CLOSE(wxDialog::OnCloseWindow)
  38 END_EVENT_TABLE()
  39
  40 #endif
  41
  42 wxDialog::wxDialog()
  43 {
  44     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  45 }
  46
  47 bool wxDialog::Create(wxWindow *parent, wxWindowID id,
  48            const wxString& title,
  49            const wxPoint& pos,
  50            const wxSize& size,
  51            long style,
  52            const wxString& name)
  53 {
  54   m_windowStyle = style;
  55
  56   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  57   SetName(name);
  58
  59   if (!parent)
  60     wxTopLevelWindows.Append(this);
  61
  62   if (parent) parent->AddChild(this);
  63
  64   if ( id == -1 )
  65         m_windowId = (int)NewControlId();
  66   else
  67         m_windowId = id;
  68
  69   // TODO: create dialog
  70
  71   return FALSE;
  72 }
  73
  74 void wxDialog::SetModal(bool flag)
  75 {
  76         if ( flag )
  77                 m_windowStyle |= wxDIALOG_MODAL ;
  78         else
  79                 if ( m_windowStyle & wxDIALOG_MODAL )
  80                         m_windowStyle -= wxDIALOG_MODAL ;
  81
  82   wxModelessWindows.DeleteObject(this);
  83   if (!flag)
  84     wxModelessWindows.Append(this);
  85 }
  86
  87 wxDialog::~wxDialog()
  88 {
  89     // TODO
  90     wxTopLevelWindows.DeleteObject(this);
  91
  92     if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
  93       wxModelessWindows.DeleteObject(this);
  94
  95     // If this is the last top-level window, exit.
  96     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
  97     {
  98       wxTheApp->SetTopWindow(NULL);
  99
 100       if (wxTheApp->GetExitOnFrameDelete())
 101       {
 102          // TODO: exit
 103       }
 104     }
 105 }
 106
 107 // By default, pressing escape cancels the dialog
 108 void wxDialog::OnCharHook(wxKeyEvent& event)
 109 {
 110   if (event.m_keyCode == WXK_ESCAPE)
 111   {
 112                 // Behaviour changed in 2.0: we'll send a Cancel message
 113                 // to the dialog instead of Close.
 114                 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 115                 cancelEvent.SetEventObject( this );
 116                 GetEventHandler()->ProcessEvent(cancelEvent);
 117
 118                 return;
 119   }
 120   // We didn't process this event.
 121   event.Skip();
 122 }
 123
 124 void wxDialog::Iconize(bool WXUNUSED(iconize))
 125 {
 126     // TODO
 127 }
 128
 129 bool wxDialog::IsIconized() const
 130 {
 131     // TODO
 132     return FALSE;
 133 }
 134
 135 void wxDialog::GetPosition(int *x, int *y) const
 136 {
 137     // TODO
 138 }
 139
 140 bool wxDialog::Show(bool show)
 141 {
 142     // TODO
 143     return FALSE;
 144 }
 145
 146 void wxDialog::SetTitle(const wxString& title)
 147 {
 148     // TODO
 149 }
 150
 151 wxString wxDialog::GetTitle() const
 152 {
 153     // TODO
 154     return wxString("");
 155 }
 156
 157 void wxDialog::Centre(int direction)
 158 {
 159   int x_offset,y_offset ;
 160   int display_width, display_height;
 161   int  width, height, x, y;
 162   wxWindow *parent = GetParent();
 163   if ((direction & wxCENTER_FRAME) && parent)
 164   {
 165       parent->GetPosition(&x_offset,&y_offset) ;
 166       parent->GetSize(&display_width,&display_height) ;
 167   }
 168   else
 169   {
 170     wxDisplaySize(&display_width, &display_height);
 171     x_offset = 0 ;
 172     y_offset = 0 ;
 173   }
 174
 175   GetSize(&width, &height);
 176   GetPosition(&x, &y);
 177
 178   if (direction & wxHORIZONTAL)
 179     x = (int)((display_width - width)/2);
 180   if (direction & wxVERTICAL)
 181     y = (int)((display_height - height)/2);
 182
 183   SetSize(x+x_offset, y+y_offset, width, height);
 184 }
 185
 186 // Replacement for Show(TRUE) for modal dialogs - returns return code
 187 int wxDialog::ShowModal()
 188 {
 189     m_windowStyle |= wxDIALOG_MODAL;
 190     // TODO: modal showing
 191         Show(TRUE);
 192         return GetReturnCode();
 193 }
 194
 195 void wxDialog::EndModal(int retCode)
 196 {
 197         SetReturnCode(retCode);
 198     // TODO modal un-showing
 199         Show(FALSE);
 200 }
 201
 202 // Standard buttons
 203 void wxDialog::OnOK(wxCommandEvent& event)
 204 {
 205         if ( Validate() && TransferDataFromWindow() )
 206         {
 207         if ( IsModal() )
 208             EndModal(wxID_OK);
 209         else
 210         {
 211                     SetReturnCode(wxID_OK);
 212                     this->Show(FALSE);
 213         }
 214         }
 215 }
 216
 217 void wxDialog::OnApply(wxCommandEvent& event)
 218 {
 219         if (Validate())
 220                 TransferDataFromWindow();
 221         // TODO probably need to disable the Apply button until things change again
 222 }
 223
 224 void wxDialog::OnCancel(wxCommandEvent& event)
 225 {
 226     if ( IsModal() )
 227         EndModal(wxID_CANCEL);
 228     else
 229     {
 230         SetReturnCode(wxID_CANCEL);
 231                 this->Show(FALSE);
 232     }
 233 }
 234
 235 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 236 {
 237     // We'll send a Cancel message by default,
 238     // which may close the dialog.
 239     // Check for looping if the Cancel event handler calls Close().
 240
 241     // Note that if a cancel button and handler aren't present in the dialog,
 242     // nothing will happen when you close the dialog via the window manager, or
 243     // via Close().
 244     // We wouldn't want to destroy the dialog by default, since the dialog may have been
 245     // created on the stack.
 246     // However, this does mean that calling dialog->Close() won't delete the dialog
 247     // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
 248     // sure to destroy the dialog.
 249     // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
 250
 251     static wxList closing;
 252
 253     if ( closing.Member(this) )
 254         return;
 255
 256     closing.Append(this);
 257
 258     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 259     cancelEvent.SetEventObject( this );
 260     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 261
 262     closing.DeleteObject(this);
 263 }
 264
 265 // Destroy the window (delayed, if a managed window)
 266 bool wxDialog::Destroy()
 267 {
 268   if (!wxPendingDelete.Member(this))
 269     wxPendingDelete.Append(this);
 270   return TRUE;
 271 }
 272
 273 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event)
 274 {
 275   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 276   Refresh();
 277 }
 278
 279 void wxDialog::Fit()
 280 {
 281 }