1 files changed, 93 insertions, 0 deletions
diff --git a/iup/src/gtk/iupgtk_loop.c b/iup/src/gtk/iupgtk_loop.c
new file mode 100755
index 0000000..e349a45
--- /dev/null
+++ b/iup/src/gtk/iupgtk_loop.c
@@ -0,0 +1,93 @@
+/** \file
+ * \brief GTK Message Loop
+ *
+ * See Copyright Notice in "iup.h"
+ */
+
+#include <stdio.h>    
+#include <string.h>    
+
+#include <gtk/gtk.h>
+
+#include "iup.h"
+#include "iupcbs.h"
+
+
+/* local variables */
+static IFidle gtk_idle_cb = NULL;
+static guint gtk_idle_id;
+
+static gboolean gtkIdleFunc(gpointer data)
+{
+  (void)data;
+  if (gtk_idle_cb)
+  {
+    int ret = gtk_idle_cb();
+    if (ret == IUP_CLOSE)
+    {
+      gtk_idle_cb = NULL;
+      IupExitLoop();
+      return FALSE; /* removes the idle */
+    }
+    if (ret == IUP_IGNORE)
+    {
+      gtk_idle_cb = NULL;
+      return FALSE; /* removes the idle */
+    }
+
+    return TRUE; /* keeps the idle */
+  }
+
+  return FALSE; /* removes the idle */
+}
+
+void iupdrvSetIdleFunction(Icallback f)
+{
+  if (gtk_idle_cb)
+    g_source_remove(gtk_idle_id);
+
+  gtk_idle_cb = (IFidle)f;
+
+  if (gtk_idle_cb)
+    gtk_idle_id = g_idle_add(gtkIdleFunc, NULL);
+}
+
+void IupExitLoop(void)
+{
+  if (gtk_main_iteration_do(FALSE)==FALSE)
+    gtk_main_quit();
+}
+
+int IupMainLoopLevel(void)
+{
+  return gtk_main_level();
+}
+
+int IupMainLoop(void)
+{
+  gtk_main();
+  return IUP_NOERROR;
+}
+
+int IupLoopStep(void)
+{
+  if (gtk_main_iteration_do(FALSE))
+    return IUP_CLOSE;
+  return IUP_DEFAULT;
+}
+
+void IupFlush(void)
+{
+  IFidle old_gtk_idle_cb = NULL;
+  if (gtk_idle_cb)
+  {
+    old_gtk_idle_cb = gtk_idle_cb;
+    iupdrvSetIdleFunction(NULL);
+  }
+
+  while (gtk_events_pending())
+    gtk_main_iteration();
+
+  if (old_gtk_idle_cb)
+    iupdrvSetIdleFunction((Icallback)old_gtk_idle_cb);
+}