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 #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 (GetHWND())
 111   {
 112     if (event.m_keyCode == WXK_ESCAPE)
 113     {
 114                 // Behaviour changed in 2.0: we'll send a Cancel message
 115                 // to the dialog instead of Close.
 116                 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 117                 cancelEvent.SetEventObject( this );
 118                 GetEventHandler()->ProcessEvent(cancelEvent);
 119
 120                 return;
 121     }
 122   }
 123   // We didn't process this event.
 124   event.Skip();
 125 }
 126
 127 void wxDialog::Iconize(bool WXUNUSED(iconize))
 128 {
 129     // TODO
 130 }
 131
 132 bool wxDialog::IsIconized() const
 133 {
 134     // TODO
 135     return FALSE;
 136 }
 137
 138 void wxDialog::SetClientSize(int width, int height)
 139 {
 140     // TODO
 141 }
 142
 143 void wxDialog::GetPosition(int *x, int *y) const
 144 {
 145     // TODO
 146 }
 147
 148 bool wxDialog::Show(bool show)
 149 {
 150     // TODO
 151     return FALSE;
 152 }
 153
 154 void wxDialog::SetTitle(const wxString& title)
 155 {
 156     // TODO
 157 }
 158
 159 wxString wxDialog::GetTitle() const
 160 {
 161     // TODO
 162     return wxString("");
 163 }
 164
 165 void wxDialog::Centre(int direction)
 166 {
 167   int x_offset,y_offset ;
 168   int display_width, display_height;
 169   int  width, height, x, y;
 170   wxFrame *frame ;
 171   if (direction & wxCENTER_FRAME)
 172   {
 173     frame = (wxFrame*)GetParent() ;
 174     if (frame)
 175     {
 176       frame->GetPosition(&x_offset,&y_offset) ;
 177       frame->GetSize(&display_width,&display_height) ;
 178     }
 179   }
 180   else
 181     frame = NULL ;
 182
 183   if (frame==NULL)
 184   {
 185     wxDisplaySize(&display_width, &display_height);
 186     x_offset = 0 ;
 187     y_offset = 0 ;
 188   }
 189
 190   GetSize(&width, &height);
 191   GetPosition(&x, &y);
 192
 193   if (direction & wxHORIZONTAL)
 194     x = (int)((display_width - width)/2);
 195   if (direction & wxVERTICAL)
 196     y = (int)((display_height - height)/2);
 197
 198   SetSize(x+x_offset, y+y_offset, width, height);
 199 }
 200
 201 // Replacement for Show(TRUE) for modal dialogs - returns return code
 202 int wxDialog::ShowModal()
 203 {
 204     m_windowStyle |= wxDIALOG_MODAL;
 205     // TODO: modal showing
 206         Show(TRUE);
 207         return GetReturnCode();
 208 }
 209
 210 void wxDialog::EndModal(int retCode)
 211 {
 212         SetReturnCode(retCode);
 213     // TODO modal un-showing
 214         Show(FALSE);
 215 }
 216
 217 // Standard buttons
 218 void wxDialog::OnOK(wxCommandEvent& event)
 219 {
 220         if ( Validate() && TransferDataFromWindow() )
 221         {
 222         if ( IsModal() )
 223             EndModal(wxID_OK);
 224         else
 225         {
 226                     SetReturnCode(wxID_OK);
 227                     this->Show(FALSE);
 228         }
 229         }
 230 }
 231
 232 void wxDialog::OnApply(wxCommandEvent& event)
 233 {
 234         if (Validate())
 235                 TransferDataFromWindow();
 236         // TODO probably need to disable the Apply button until things change again
 237 }
 238
 239 void wxDialog::OnCancel(wxCommandEvent& event)
 240 {
 241     if ( IsModal() )
 242         EndModal(wxID_CANCEL);
 243     else
 244     {
 245         SetReturnCode(wxID_CANCEL);
 246                 this->Show(FALSE);
 247     }
 248 }
 249
 250 void wxDialog::OnCloseWindow(wxCloseEvent& event)
 251 {
 252     // We'll send a Cancel message by default,
 253     // which may close the dialog.
 254     // Check for looping if the Cancel event handler calls Close().
 255
 256     // Note that if a cancel button and handler aren't present in the dialog,
 257     // nothing will happen when you close the dialog via the window manager, or
 258     // via Close().
 259     // We wouldn't want to destroy the dialog by default, since the dialog may have been
 260     // created on the stack.
 261     // However, this does mean that calling dialog->Close() won't delete the dialog
 262     // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
 263     // sure to destroy the dialog.
 264     // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
 265
 266     static wxList closing;
 267
 268     if ( closing.Member(this) )
 269         return;
 270
 271     closing.Append(this);
 272
 273     wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 274     cancelEvent.SetEventObject( this );
 275     GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
 276
 277     closing.DeleteObject(this);
 278 }
 279
 280 // Destroy the window (delayed, if a managed window)
 281 bool wxDialog::Destroy()
 282 {
 283   if (!wxPendingDelete.Member(this))
 284     wxPendingDelete.Append(this);
 285   return TRUE;
 286 }
 287
 288 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event)
 289 {
 290   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 291   Refresh();
 292 }
 293