src/gtk/popupwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/popupwin.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Copyright:   (c) 1998 Robert Roebling
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_POPUPWIN
  13
  14 #include "wx/popupwin.h"
  15
  16 #ifndef WX_PRECOMP
  17 #endif // WX_PRECOMP
  18
  19 #include <gtk/gtk.h>
  20
  21 #include "wx/gtk/private/win_gtk.h"
  22
  23 //-----------------------------------------------------------------------------
  24 // "button_press"
  25 //-----------------------------------------------------------------------------
  26
  27 extern "C" {
  28 static gint gtk_popup_button_press (GtkWidget *widget, GdkEvent *gdk_event, wxPopupWindow* win )
  29 {
  30     GtkWidget *child = gtk_get_event_widget (gdk_event);
  31
  32     /* Ignore events sent out before we connected to the signal */
  33     if (win->m_time >= ((GdkEventButton*)gdk_event)->time)
  34         return FALSE;
  35
  36     /*  We don't ask for button press events on the grab widget, so
  37      *  if an event is reported directly to the grab widget, it must
  38      *  be on a window outside the application (and thus we remove
  39      *  the popup window). Otherwise, we check if the widget is a child
  40      *  of the grab widget, and only remove the popup window if it
  41      *  is not. */
  42     if (child != widget)
  43     {
  44         while (child)
  45         {
  46             if (child == widget)
  47                 return FALSE;
  48             child = gtk_widget_get_parent(child);
  49         }
  50     }
  51
  52     wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
  53     event.SetEventObject( win );
  54
  55     (void)win->HandleWindowEvent( event );
  56
  57     return TRUE;
  58 }
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 // "delete_event"
  63 //-----------------------------------------------------------------------------
  64
  65 extern "C" {
  66 bool gtk_dialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxPopupWindow *win )
  67 {
  68     if (win->IsEnabled())
  69         win->Close();
  70
  71     return TRUE;
  72 }
  73 }
  74
  75 //-----------------------------------------------------------------------------
  76 // wxPopupWindow
  77 //-----------------------------------------------------------------------------
  78
  79 #ifdef __WXUNIVERSAL__
  80 BEGIN_EVENT_TABLE(wxPopupWindow,wxPopupWindowBase)
  81     EVT_SIZE(wxPopupWindow::OnSize)
  82 END_EVENT_TABLE()
  83 #endif
  84
  85 wxPopupWindow::~wxPopupWindow()
  86 {
  87 }
  88
  89 bool wxPopupWindow::Create( wxWindow *parent, int style )
  90 {
  91     if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
  92         !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("popup") ))
  93     {
  94         wxFAIL_MSG( wxT("wxPopupWindow creation failed") );
  95         return false;
  96     }
  97
  98     // Unlike windows, top level windows are created hidden by default.
  99     m_isShown = false;
 100
 101     // All dialogs should really have this style
 102     m_windowStyle |= wxTAB_TRAVERSAL;
 103
 104     m_widget = gtk_window_new( GTK_WINDOW_POPUP );
 105     g_object_ref( m_widget );
 106
 107     gtk_widget_set_name( m_widget, "wxPopupWindow" );
 108     // wxPopupWindow is used for different windows as well
 109     // gtk_window_set_type_hint( GTK_WINDOW(m_widget), GDK_WINDOW_TYPE_HINT_COMBO );
 110
 111     // Popup windows can be created without parent, so handle this correctly.
 112     if (parent)
 113     {
 114         GtkWidget *toplevel = gtk_widget_get_toplevel( parent->m_widget );
 115         if (GTK_IS_WINDOW (toplevel))
 116         {
 117 #if GTK_CHECK_VERSION(2,10,0)
 118 #ifndef __WXGTK3__
 119             if (!gtk_check_version(2,10,0))
 120 #endif
 121             {
 122                 gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (m_widget));
 123             }
 124 #endif
 125             gtk_window_set_transient_for (GTK_WINDOW (m_widget), GTK_WINDOW (toplevel));
 126         }
 127         gtk_window_set_screen (GTK_WINDOW (m_widget), gtk_widget_get_screen (GTK_WIDGET (parent->m_widget)));
 128     }
 129
 130     gtk_window_set_resizable (GTK_WINDOW (m_widget), FALSE);
 131
 132     g_signal_connect (m_widget, "delete_event",
 133                       G_CALLBACK (gtk_dialog_delete_callback), this);
 134
 135     m_wxwindow = wxPizza::New();
 136     gtk_widget_show( m_wxwindow );
 137
 138     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 139
 140     if (m_parent) m_parent->AddChild( this );
 141
 142     PostCreation();
 143
 144     m_time = gtk_get_current_event_time();
 145
 146     g_signal_connect (m_widget, "button_press_event",
 147                       G_CALLBACK (gtk_popup_button_press), this);
 148
 149     return true;
 150 }
 151
 152 void wxPopupWindow::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 153 {
 154     wxFAIL_MSG( wxT("DoMoveWindow called for wxPopupWindow") );
 155 }
 156
 157 void wxPopupWindow::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 158 {
 159     wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") );
 160     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") );
 161
 162     int old_x = m_x;
 163     int old_y = m_y;
 164
 165     int old_width = m_width;
 166     int old_height = m_height;
 167
 168     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 169         m_x = x;
 170     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 171         m_y = y;
 172     if (width != -1)
 173         m_width = width;
 174     if (height != -1)
 175         m_height = height;
 176
 177     ConstrainSize();
 178
 179     if ((m_x != -1) || (m_y != -1))
 180     {
 181         if ((m_x != old_x) || (m_y != old_y))
 182         {
 183             gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 184         }
 185     }
 186
 187     if ((m_width != old_width) || (m_height != old_height))
 188     {
 189         // gtk_window_resize does not work for GTK_WINDOW_POPUP
 190         gtk_widget_set_size_request( m_widget, m_width, m_height );
 191         wxSizeEvent event(GetSize(), GetId());
 192         event.SetEventObject(this);
 193         HandleWindowEvent(event);
 194     }
 195 }
 196
 197 void wxPopupWindow::SetFocus()
 198 {
 199     // set the focus to the first child who wants it
 200     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 201     while ( node )
 202     {
 203         wxWindow *child = node->GetData();
 204         node = node->GetNext();
 205
 206         if ( child->CanAcceptFocus() && !child->IsTopLevel() )
 207         {
 208             child->SetFocus();
 209             return;
 210         }
 211     }
 212
 213     wxPopupWindowBase::SetFocus();
 214 }
 215
 216 bool wxPopupWindow::Show( bool show )
 217 {
 218     if (show && !IsShown())
 219     {
 220         wxSizeEvent event(GetSize(), GetId());
 221         event.SetEventObject(this);
 222         HandleWindowEvent(event);
 223     }
 224
 225     bool ret = wxWindow::Show( show );
 226
 227     return ret;
 228 }
 229
 230 #endif // wxUSE_POPUPWIN