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/** \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 IupLoopStepWait(void)
{
if (gtk_main_iteration_do(TRUE))
return IUP_CLOSE;
return IUP_DEFAULT;
}
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);
}
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