src/gtk/popupwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/popupwin.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 #if wxUSE_POPUPWIN
  14
  15 #include "wx/popupwin.h"
  16
  17 #ifndef WX_PRECOMP
  18 #endif // WX_PRECOMP
  19
  20 #include <gtk/gtk.h>
  21
  22 #include "wx/gtk/private/win_gtk.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // "button_press"
  26 //-----------------------------------------------------------------------------
  27
  28 extern "C" {
  29 static gint gtk_popup_button_press (GtkWidget *widget, GdkEvent *gdk_event, wxPopupWindow* win )
  30 {
  31     GtkWidget *child = gtk_get_event_widget (gdk_event);
  32
  33     /* Ignore events sent out before we connected to the signal */
  34     if (win->m_time >= ((GdkEventButton*)gdk_event)->time)
  35         return FALSE;
  36
  37     /*  We don't ask for button press events on the grab widget, so
  38      *  if an event is reported directly to the grab widget, it must
  39      *  be on a window outside the application (and thus we remove
  40      *  the popup window). Otherwise, we check if the widget is a child
  41      *  of the grab widget, and only remove the popup window if it
  42      *  is not. */
  43     if (child != widget)
  44     {
  45         while (child)
  46         {
  47             if (child == widget)
  48                 return FALSE;
  49             child = gtk_widget_get_parent(child);
  50         }
  51     }
  52
  53     wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
  54     event.SetEventObject( win );
  55
  56     (void)win->HandleWindowEvent( event );
  57
  58     return TRUE;
  59 }
  60 }
  61
  62 //-----------------------------------------------------------------------------
  63 // "delete_event"
  64 //-----------------------------------------------------------------------------
  65
  66 extern "C" {
  67 bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxPopupWindow *win )
  68 {
  69     if (win->IsEnabled())
  70         win->Close();
  71
  72     return TRUE;
  73 }
  74 }
  75
  76 //-----------------------------------------------------------------------------
  77 // wxPopupWindow
  78 //-----------------------------------------------------------------------------
  79
  80 #ifdef __WXUNIVERSAL__
  81 BEGIN_EVENT_TABLE(wxPopupWindow,wxPopupWindowBase)
  82     EVT_SIZE(wxPopupWindow::OnSize)
  83 END_EVENT_TABLE()
  84 #endif
  85
  86 wxPopupWindow::~wxPopupWindow()
  87 {
  88 }
  89
  90 bool wxPopupWindow::Create( wxWindow *parent, int style )
  91 {
  92     if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
  93         !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("popup") ))
  94     {
  95         wxFAIL_MSG( wxT("wxPopupWindow creation failed") );
  96         return false;
  97     }
  98
  99     // Unlike windows, top level windows are created hidden by default.
 100     m_isShown = false;
 101
 102     // All dialogs should really have this style
 103     m_windowStyle |= wxTAB_TRAVERSAL;
 104
 105     m_widget = gtk_window_new( GTK_WINDOW_POPUP );
 106     g_object_ref( m_widget );
 107
 108     gtk_widget_set_name( m_widget, "wxPopupWindow" );
 109     // wxPopupWindow is used for different windows as well
 110     // gtk_window_set_type_hint( GTK_WINDOW(m_widget), GDK_WINDOW_TYPE_HINT_COMBO );
 111
 112     GtkWidget *toplevel = gtk_widget_get_toplevel( parent->m_widget );
 113     if (GTK_IS_WINDOW (toplevel))
 114     {
 115 #if GTK_CHECK_VERSION(2,10,0)
 116 #ifndef __WXGTK3__
 117         if (!gtk_check_version(2,10,0))
 118 #endif
 119         {
 120             gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (m_widget));
 121         }
 122 #endif
 123         gtk_window_set_transient_for (GTK_WINDOW (m_widget), GTK_WINDOW (toplevel));
 124     }
 125     gtk_window_set_resizable (GTK_WINDOW (m_widget), FALSE);
 126     gtk_window_set_screen (GTK_WINDOW (m_widget), gtk_widget_get_screen (GTK_WIDGET (parent->m_widget)));
 127
 128     g_signal_connect (m_widget, "delete_event",
 129                       G_CALLBACK (gtk_dialog_delete_callback), this);
 130
 131     m_wxwindow = wxPizza::New();
 132     gtk_widget_show( m_wxwindow );
 133
 134     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 135
 136     if (m_parent) m_parent->AddChild( this );
 137
 138     PostCreation();
 139
 140     m_time = gtk_get_current_event_time();
 141
 142     g_signal_connect (m_widget, "button_press_event",
 143                       G_CALLBACK (gtk_popup_button_press), this);
 144
 145     return true;
 146 }
 147
 148 void wxPopupWindow::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 149 {
 150     wxFAIL_MSG( wxT("DoMoveWindow called for wxPopupWindow") );
 151 }
 152
 153 void wxPopupWindow::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 154 {
 155     wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") );
 156     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") );
 157
 158     int old_x = m_x;
 159     int old_y = m_y;
 160
 161     int old_width = m_width;
 162     int old_height = m_height;
 163
 164     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 165         m_x = x;
 166     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 167         m_y = y;
 168     if (width != -1)
 169         m_width = width;
 170     if (height != -1)
 171         m_height = height;
 172
 173     ConstrainSize();
 174
 175     if ((m_x != -1) || (m_y != -1))
 176     {
 177         if ((m_x != old_x) || (m_y != old_y))
 178         {
 179             gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 180         }
 181     }
 182
 183     if ((m_width != old_width) || (m_height != old_height))
 184     {
 185         // gtk_window_resize does not work for GTK_WINDOW_POPUP
 186         gtk_widget_set_size_request( m_widget, m_width, m_height );
 187         wxSizeEvent event(GetSize(), GetId());
 188         event.SetEventObject(this);
 189         HandleWindowEvent(event);
 190     }
 191 }
 192
 193 void wxPopupWindow::SetFocus()
 194 {
 195     // set the focus to the first child who wants it
 196     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 197     while ( node )
 198     {
 199         wxWindow *child = node->GetData();
 200         node = node->GetNext();
 201
 202         if ( child->CanAcceptFocus() && !child->IsTopLevel() )
 203         {
 204             child->SetFocus();
 205             return;
 206         }
 207     }
 208
 209     wxPopupWindowBase::SetFocus();
 210 }
 211
 212 bool wxPopupWindow::Show( bool show )
 213 {
 214     if (show && !IsShown())
 215     {
 216         wxSizeEvent event(GetSize(), GetId());
 217         event.SetEventObject(this);
 218         HandleWindowEvent(event);
 219     }
 220
 221     bool ret = wxWindow::Show( show );
 222
 223     return ret;
 224 }
 225
 226 #endif // wxUSE_POPUPWIN