src/gtk/dialog.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/dialog.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/dialog.h"
  14
  15 #ifndef WX_PRECOMP
  16     #include "wx/cursor.h"
  17 #endif // WX_PRECOMP
  18
  19 #include "wx/evtloop.h"
  20
  21 #include <gtk/gtk.h>
  22
  23 //-----------------------------------------------------------------------------
  24 // global data
  25 //-----------------------------------------------------------------------------
  26
  27 // Don't allow window closing if there are open dialogs
  28 int g_openDialogs;
  29
  30 //-----------------------------------------------------------------------------
  31 // wxDialog
  32 //-----------------------------------------------------------------------------
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxTopLevelWindow)
  35
  36 void wxDialog::Init()
  37 {
  38     m_returnCode = 0;
  39     m_modalShowing = false;
  40     m_themeEnabled = true;
  41 }
  42
  43 wxDialog::wxDialog( wxWindow *parent,
  44                     wxWindowID id, const wxString &title,
  45                     const wxPoint &pos, const wxSize &size,
  46                     long style, const wxString &name )
  47 {
  48     Init();
  49
  50     (void)Create( parent, id, title, pos, size, style, name );
  51 }
  52
  53 bool wxDialog::Create( wxWindow *parent,
  54                        wxWindowID id, const wxString &title,
  55                        const wxPoint &pos, const wxSize &size,
  56                        long style, const wxString &name )
  57 {
  58     SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
  59
  60     // all dialogs should have tab traversal enabled
  61     style |= wxTAB_TRAVERSAL;
  62
  63     return wxTopLevelWindow::Create(parent, id, title, pos, size, style, name);
  64 }
  65
  66 bool wxDialog::Show( bool show )
  67 {
  68     if (!show && IsModal())
  69     {
  70         EndModal( wxID_CANCEL );
  71     }
  72
  73     bool ret = wxWindow::Show( show );
  74
  75     if (show) InitDialog();
  76
  77     return ret;
  78 }
  79
  80 bool wxDialog::IsModal() const
  81 {
  82     return m_modalShowing;
  83 }
  84
  85 void wxDialog::SetModal( bool WXUNUSED(flag) )
  86 {
  87     wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") );
  88 }
  89
  90 int wxDialog::ShowModal()
  91 {
  92     if (IsModal())
  93     {
  94        wxFAIL_MSG( wxT("wxDialog:ShowModal called twice") );
  95        return GetReturnCode();
  96     }
  97
  98     // release the mouse if it's currently captured as the window having it
  99     // will be disabled when this dialog is shown -- but will still keep the
 100     // capture making it impossible to do anything in the modal dialog itself
 101     wxWindow * const win = wxWindow::GetCapture();
 102     if ( win )
 103         win->GTKReleaseMouseAndNotify();
 104
 105     // use the apps top level window as parent if none given unless explicitly
 106     // forbidden
 107     if ( !GetParent() && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 108     {
 109         wxWindow * const parent = GetParentForModalDialog();
 110         if ( parent && parent != this )
 111         {
 112             gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 113                                           GTK_WINDOW(parent->m_widget) );
 114         }
 115     }
 116
 117     wxBusyCursorSuspender cs; // temporarily suppress the busy cursor
 118
 119     Show( true );
 120
 121     m_modalShowing = true;
 122
 123     g_openDialogs++;
 124
 125     // NOTE: gtk_window_set_modal internally calls gtk_grab_add() !
 126     gtk_window_set_modal(GTK_WINDOW(m_widget), TRUE);
 127
 128     wxGUIEventLoop().Run();
 129
 130     gtk_window_set_modal(GTK_WINDOW(m_widget), FALSE);
 131
 132     g_openDialogs--;
 133
 134     return GetReturnCode();
 135 }
 136
 137 void wxDialog::EndModal( int retCode )
 138 {
 139     SetReturnCode( retCode );
 140
 141     if (!IsModal())
 142     {
 143         wxFAIL_MSG( wxT("wxDialog:EndModal called twice") );
 144         return;
 145     }
 146
 147     m_modalShowing = false;
 148
 149     gtk_main_quit();
 150
 151     Show( false );
 152 }