// Created: 10.07.01
// RCS-ID: $Id$
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// License: wxWindows licence
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
#endif
#include "wx/evtloop.h"
+#include "wx/evtloopsrc.h"
#ifndef WX_PRECOMP
#include "wx/app.h"
#endif // WX_PRECOMP
#include <gtk/gtk.h>
+#include <glib.h>
// ============================================================================
// wxEventLoop implementation
wxTheApp->WakeUpIdle();
}
+// ----------------------------------------------------------------------------
+// wxEventLoop adding & removing sources
+// ----------------------------------------------------------------------------
+
+#if wxUSE_EVENTLOOP_SOURCE
+
+extern "C"
+{
+static gboolean wx_on_channel_event(GIOChannel *channel,
+ GIOCondition condition,
+ gpointer data)
+{
+ wxUnusedVar(channel); // Unused if !wxUSE_LOG || !wxDEBUG_LEVEL
+
+ wxLogTrace(wxTRACE_EVT_SOURCE,
+ "wx_on_channel_event, fd=%d, condition=%08x",
+ g_io_channel_unix_get_fd(channel), condition);
+
+ wxEventLoopSourceHandler * const
+ handler = static_cast<wxEventLoopSourceHandler *>(data);
+
+ if (condition & G_IO_IN || condition & G_IO_PRI)
+ handler->OnReadWaiting();
+ if (condition & G_IO_OUT)
+ handler->OnWriteWaiting();
+ else if (condition & G_IO_ERR || condition & G_IO_NVAL)
+ handler->OnExceptionWaiting();
+
+ // we never want to remove source here, so always return true
+ return TRUE;
+}
+}
+
+wxEventLoopSource *
+wxGUIEventLoop::AddSourceForFD(int fd,
+ wxEventLoopSourceHandler *handler,
+ int flags)
+{
+ wxCHECK_MSG( fd != -1, NULL, "can't monitor invalid fd" );
+
+ int condition = 0;
+ if (flags & wxEVENT_SOURCE_INPUT)
+ condition |= G_IO_IN | G_IO_PRI;
+ if (flags & wxEVENT_SOURCE_OUTPUT)
+ condition |= G_IO_OUT;
+ if (flags & wxEVENT_SOURCE_EXCEPTION)
+ condition |= G_IO_ERR | G_IO_HUP | G_IO_NVAL;
+
+ GIOChannel* channel = g_io_channel_unix_new(fd);
+ const unsigned sourceId = g_io_add_watch
+ (
+ channel,
+ (GIOCondition)condition,
+ &wx_on_channel_event,
+ handler
+ );
+ // it was ref'd by g_io_add_watch() so we can unref it here
+ g_io_channel_unref(channel);
+
+ if ( !sourceId )
+ return NULL;
+
+ wxLogTrace(wxTRACE_EVT_SOURCE,
+ "Adding event loop source for fd=%d with GTK id=%u",
+ fd, sourceId);
+
+
+ return new wxGTKEventLoopSource(sourceId, handler, flags);
+}
+
+wxGTKEventLoopSource::~wxGTKEventLoopSource()
+{
+ wxLogTrace(wxTRACE_EVT_SOURCE,
+ "Removing event loop source with GTK id=%u", m_sourceId);
+
+ g_source_remove(m_sourceId);
+}
+
+#endif // wxUSE_EVENTLOOP_SOURCE
+
// ----------------------------------------------------------------------------
// wxEventLoop message processing dispatching
// ----------------------------------------------------------------------------
bool wxGUIEventLoop::Dispatch()
{
- wxCHECK_MSG( IsRunning(), false, _T("can't call Dispatch() if not running") );
+ wxCHECK_MSG( IsRunning(), false, wxT("can't call Dispatch() if not running") );
// gtk_main_iteration() returns TRUE only if gtk_main_quit() was called
return !gtk_main_iteration();
// YieldFor
//-----------------------------------------------------------------------------
-static void wxgtk_main_do_event(GdkEvent *event, wxGUIEventLoop* evtloop)
+extern "C" {
+static void wxgtk_main_do_event(GdkEvent* event, void* data)
{
// categorize the GDK event according to wxEventCategory.
// See http://library.gnome.org/devel/gdk/unstable/gdk-Events.html#GdkEventType
// for more info.
+ // NOTE: GDK_* constants which were not present in the GDK2.0 can be tested for
+ // only at compile-time; when running the program (compiled with a recent GDK)
+ // on a system with an older GDK lib we can be sure there won't be problems
+ // because event->type will never assume those values corresponding to
+ // new event types (since new event types are always added in GDK with non
+ // conflicting values for ABI compatibility).
+
wxEventCategory cat = wxEVT_CATEGORY_UNKNOWN;
switch (event->type)
{
case GDK_SELECTION_REQUEST:
case GDK_SELECTION_NOTIFY:
case GDK_SELECTION_CLEAR:
+#if GTK_CHECK_VERSION(2,6,0)
case GDK_OWNER_CHANGE:
+#endif
cat = wxEVT_CATEGORY_CLIPBOARD;
break;
-
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
case GDK_BUTTON_PRESS:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
+#if GTK_CHECK_VERSION(2,8,0)
case GDK_GRAB_BROKEN:
+#endif
+#if GTK_CHECK_VERSION(2,14,0)
+ case GDK_DAMAGE:
+#endif
cat = wxEVT_CATEGORY_UI;
break;
break;
}
+ wxGUIEventLoop* evtloop = static_cast<wxGUIEventLoop*>(data);
+
// is this event allowed now?
if (evtloop->IsEventAllowedInsideYield(cat))
gtk_main_do_event(event); // process it now
evtloop->StoreGdkEventForLaterProcessing(gdk_event_copy(event));
// process it later (but make a copy; the caller will free the event pointer)
}
+}
bool wxGUIEventLoop::YieldFor(long eventsToProcess)
{
// and then call gtk_main_do_event()!
// In particular in this way we also process input from sources like
// GIOChannels (this is needed for e.g. wxGUIAppTraits::WaitForChild).
- gdk_event_handler_set ((GdkEventFunc)wxgtk_main_do_event, this, NULL);
+ gdk_event_handler_set(wxgtk_main_do_event, this, NULL);
while (Pending()) // avoid false positives from our idle source
gtk_main_iteration();
gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);
projects / wxWidgets.git / blobdiff