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