1 files changed, 54 insertions, 0 deletions
diff --git a/libs/gtkmm2ext/idle_adjustment.cc b/libs/gtkmm2ext/idle_adjustment.cc
new file mode 100644
index 0000000000..45118283c5
--- /dev/null
+++ b/libs/gtkmm2ext/idle_adjustment.cc
@@ -0,0 +1,54 @@
+#define _BSD_SOURCE
+#include <gtkmm2ext/idle_adjustment.h>
+#include <gtkmm/main.h>
+#include <iostream>
+
+using namespace Gtk;
+using namespace sigc;
+using namespace Gtkmm2ext;
+
+IdleAdjustment::IdleAdjustment (Gtk::Adjustment& adj)
+{
+	adj.signal_value_changed().connect (mem_fun (*this, &IdleAdjustment::underlying_adjustment_value_changed));
+	timeout_queued = 0;
+	gettimeofday (&last_vc, 0);
+}
+
+IdleAdjustment::~IdleAdjustment ()
+{
+}
+
+void
+IdleAdjustment::underlying_adjustment_value_changed ()
+{
+	gettimeofday (&last_vc, 0);
+	
+	if (timeout_queued) {
+		return;
+	}
+
+	Glib::signal_timeout().connect(mem_fun(*this, &IdleAdjustment::timeout_handler), 250);
+	timeout_queued = true;
+}	
+
+gint
+IdleAdjustment::timeout_handler ()
+{
+	struct timeval now;
+	struct timeval tdiff;
+
+	gettimeofday (&now, 0);
+
+	timersub (&now, &last_vc, &tdiff);
+
+	std::cerr << "timer elapsed, diff = " << tdiff.tv_sec << " + " << tdiff.tv_usec << std::endl;
+
+	if (tdiff.tv_sec > 0 || tdiff.tv_usec > 250000) {
+		std::cerr << "send signal\n";
+		value_changed ();
+		timeout_queued = false;
+		return FALSE;
+	} else {
+		return TRUE;
+	}
+}