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 = child->parent;
  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 // "realize" from m_widget
  78 //-----------------------------------------------------------------------------
  79
  80 /* we cannot MWM hints and icons before the widget has been realized,
  81    so we do this directly after realization */
  82
  83 extern "C" {
  84 static gint
  85 gtk_dialog_realized_callback( GtkWidget * WXUNUSED(widget), wxPopupWindow *win )
  86 {
  87     /* all this is for Motif Window Manager "hints" and is supposed to be
  88        recognized by other WM as well. not tested. */
  89     long decor = (long) GDK_DECOR_BORDER;
  90     long func = (long) GDK_FUNC_MOVE ;
  91
  92     gdk_window_set_decorations( win->m_widget->window, (GdkWMDecoration)decor);
  93     gdk_window_set_functions( win->m_widget->window, (GdkWMFunction)func);
  94
  95     gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
  96
  97     return FALSE;
  98 }
  99 }
 100
 101 void wxPopupWindow::AddChildGTK(wxWindowGTK* child)
 102 {
 103     gtk_widget_set_size_request(
 104         child->m_widget, child->m_width, child->m_height);
 105     gtk_fixed_put(
 106         GTK_FIXED(m_wxwindow), child->m_widget, child->m_x, child->m_y);
 107
 108     if (HasFlag(wxTAB_TRAVERSAL))
 109     {
 110         /* we now allow a window to get the focus as long as it
 111            doesn't have any children. */
 112         GTK_WIDGET_UNSET_FLAGS(m_wxwindow, GTK_CAN_FOCUS);
 113     }
 114 }
 115
 116 //-----------------------------------------------------------------------------
 117 // wxPopupWindow
 118 //-----------------------------------------------------------------------------
 119
 120 #ifdef __WXUNIVERSAL__
 121 BEGIN_EVENT_TABLE(wxPopupWindow,wxPopupWindowBase)
 122     EVT_SIZE(wxPopupWindow::OnSize)
 123 END_EVENT_TABLE()
 124 #endif
 125
 126 wxPopupWindow::~wxPopupWindow()
 127 {
 128 }
 129
 130 bool wxPopupWindow::Create( wxWindow *parent, int style )
 131 {
 132     if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
 133         !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("popup") ))
 134     {
 135         wxFAIL_MSG( wxT("wxPopupWindow creation failed") );
 136         return false;
 137     }
 138
 139     // Unlike windows, top level windows are created hidden by default.
 140     m_isShown = false;
 141
 142     // All dialogs should really have this style
 143     m_windowStyle |= wxTAB_TRAVERSAL;
 144
 145     m_widget = gtk_window_new( GTK_WINDOW_POPUP );
 146     g_object_ref(m_widget);
 147
 148     if ((m_parent) && (GTK_IS_WINDOW(m_parent->m_widget)))
 149         gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(m_parent->m_widget) );
 150
 151     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 152
 153     g_signal_connect (m_widget, "delete_event",
 154                       G_CALLBACK (gtk_dialog_delete_callback), this);
 155
 156     m_wxwindow = wxPizza::New(m_windowStyle);
 157     gtk_widget_show( m_wxwindow );
 158     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 159
 160     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 161
 162     if (m_parent) m_parent->AddChild( this );
 163
 164     PostCreation();
 165
 166     /*  we cannot set MWM hints  before the widget has
 167         been realized, so we do this directly after realization */
 168     g_signal_connect (m_widget, "realize",
 169                       G_CALLBACK (gtk_dialog_realized_callback), this);
 170
 171     m_time = gtk_get_current_event_time();
 172
 173     g_signal_connect (m_widget, "button_press_event",
 174                       G_CALLBACK (gtk_popup_button_press), this);
 175
 176     return true;
 177 }
 178
 179 void wxPopupWindow::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 180 {
 181     wxFAIL_MSG( wxT("DoMoveWindow called for wxPopupWindow") );
 182 }
 183
 184 void wxPopupWindow::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 185 {
 186     wxASSERT_MSG( (m_widget != NULL), wxT("invalid dialog") );
 187     wxASSERT_MSG( (m_wxwindow != NULL), wxT("invalid dialog") );
 188
 189     int old_x = m_x;
 190     int old_y = m_y;
 191
 192     int old_width = m_width;
 193     int old_height = m_height;
 194
 195     if (x != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 196         m_x = x;
 197     if (y != -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 198         m_y = y;
 199     if (width != -1)
 200         m_width = width;
 201     if (height != -1)
 202         m_height = height;
 203
 204     ConstrainSize();
 205
 206     if ((m_x != -1) || (m_y != -1))
 207     {
 208         if ((m_x != old_x) || (m_y != old_y))
 209         {
 210             gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 211         }
 212     }
 213
 214     if ((m_width != old_width) || (m_height != old_height))
 215     {
 216         // gtk_window_resize does not work for GTK_WINDOW_POPUP
 217         gtk_widget_set_size_request( m_widget, m_width, m_height );
 218         wxSizeEvent event(GetSize(), GetId());
 219         event.SetEventObject(this);
 220         HandleWindowEvent(event);
 221     }
 222 }
 223
 224 bool wxPopupWindow::Show( bool show )
 225 {
 226     if (show && !IsShown())
 227     {
 228         wxSizeEvent event(GetSize(), GetId());
 229         event.SetEventObject(this);
 230         HandleWindowEvent(event);
 231     }
 232
 233     bool ret = wxWindow::Show( show );
 234
 235     return ret;
 236 }
 237
 238 #endif // wxUSE_POPUPWIN