src/motif/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dialog.cpp
   3 // Purpose:     wxDialog class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   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::SetClientSize(int width, int height)
 136 {
 137     // TODO
 138 }
 139
 140 void wxDialog::GetPosition(int *x, int *y) const
 141 {
 142     // TODO
 143 }
 144
 145 bool wxDialog::Show(bool show)
 146 {
 147     // TODO
 148     return FALSE;
 149 }
 150
 151 void wxDialog::SetTitle(const wxString& title)
 152 {
 153     // TODO
 154 }
 155
 156 wxString wxDialog::GetTitle() const
 157 {
 158     // TODO
 159     return wxString("");
 160 }
 161
 162 void wxDialog::Centre(int direction)
 163 {
 164   int x_offset,y_offset ;
 165   int display_width, display_height;
 166   int  width, height, x, y;
 167   wxFrame *frame ;
 168   if (direction & wxCENTER_FRAME)
 169   {
 170     frame = (wxFrame*)GetParent() ;
 171     if (frame)
 172     {
 173       frame->GetPosition(&x_offset,&y_offset) ;
 174       frame->GetSize(&display_width,&display_height) ;
 175     }
 176   }
 177   else
 178     frame = NULL ;
 179
 180   if (frame==NULL)
 181   {
 182     wxDisplaySize(&display_width, &display_height);
 183     x_offset = 0 ;
 184     y_offset = 0 ;
 185   }
 186
 187   GetSize(&width, &height);
 188   GetPosition(&x, &y);
 189
 190   if (direction & wxHORIZONTAL)
 191     x = (int)((display_width - width)/2);
 192   if (direction & wxVERTICAL)
 193     y = (int)((display_height - height)/2);
 194
 195   SetSize(x+x_offset, y+y_offset, width, height);
 196 }
 197
 198 // Replacement for Show(TRUE) for modal dialogs - returns return code
 199 int wxDialog::ShowModal()
 200 {
 201     m_windowStyle |= wxDIALOG_MODAL;
 202     // TODO: modal showing
 203         Show(TRUE);
 204         return GetReturnCode();
 205 }
 206
 207 void wxDialog::EndModal(int retCode)
 208 {
 209         SetReturnCode(retCode);
 210     // TODO modal un-showing
 211         Show(FALSE);
 212 }
 213
 214 // Standard buttons
 215 void wxDialog::OnOK(wxCommandEvent& event)
 216 {
 217         if ( Validate() && TransferDataFromWindow() )
 218         {
 219         if ( IsModal() )
 220             EndModal(wxID_OK);
 221         else
 222         {
 223                     SetReturnCode(wxID_OK);
 224                     this->Show(FALSE);
 225         }
 226         }
 227 }
 228
 229 void wxDialog::OnApply(wxCommandEvent& event)
 230 {
 231         if (Validate())
 232                 TransferDataFromWindow();
 233         // TODO probably need to disable the Apply button until things change again
 234 }
 235
 236 void wxDialog::OnCancel(wxCommandEvent& event)
 237 {
 238     if ( IsModal() )
 239         EndModal(wxID_CANCEL);
 240     else
 241     {
 242         SetReturnCode(wxID_CANCEL);
 243                 this->Show(FALSE);
 244     }
 245 }
 246
 247 bool wxDialog::OnClose()
 248 {
 249         // Behaviour changed in 2.0: we'll send a Cancel message by default,
 250     // which may close the dialog.
 251     // Check for looping if the Cancel event handler calls Close()
 252
 253     static wxList closing;
 254
 255     if ( closing.Member(this) )
 256         return FALSE;
 257
 258     closing.Append(this);
 259
 260         wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 261         cancelEvent.SetEventObject( this );
 262         GetEventHandler()->ProcessEvent(cancelEvent);
 263
 264     closing.DeleteObject(this);
 265
 266         return FALSE;
 267 }
 268
 269 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 270 {
 271     // Compatibility
 272     if ( GetEventHandler()->OnClose() || event.GetForce())
 273     {
 274         this->Destroy();
 275     }
 276 }
 277
 278 // Destroy the window (delayed, if a managed window)
 279 bool wxDialog::Destroy()
 280 {
 281   if (!wxPendingDelete.Member(this))
 282     wxPendingDelete.Append(this);
 283   return TRUE;
 284 }
 285
 286 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event)
 287 {
 288   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 289   Refresh();
 290 }
 291
 292 void wxDialog::Fit()
 293 {
 294 }