Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/lib/cvstguitimer.cpp

@@ -0,0 +1,113 @@
+// This file is part of VSTGUI. It is subject to the license terms 
+// in the LICENSE file found in the top-level directory of this
+// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
+
+#include "cvstguitimer.h"
+#include "platform/platformfactory.h"
+
+#if DEBUG
+#define DEBUGLOG	0
+#endif
+
+namespace VSTGUI {
+
+//-----------------------------------------------------------------------------
+IdStringPtr CVSTGUITimer::kMsgTimer = "timer fired";
+
+//-----------------------------------------------------------------------------
+CVSTGUITimer::CVSTGUITimer (CBaseObject* timerObject, uint32_t fireTime, bool doStart)
+: fireTime (fireTime)
+, platformTimer (nullptr)
+{
+	callbackFunc = [timerObject](CVSTGUITimer* timer) {
+		timerObject->notify (timer, kMsgTimer);
+	};
+	if (doStart)
+		start ();
+}
+
+//-----------------------------------------------------------------------------
+CVSTGUITimer::CVSTGUITimer (const CallbackFunc& callback, uint32_t fireTime, bool doStart)
+: fireTime (fireTime)
+, callbackFunc (callback)
+, platformTimer (nullptr)
+{
+	if (doStart)
+		start ();
+}
+
+//-----------------------------------------------------------------------------
+CVSTGUITimer::CVSTGUITimer (CallbackFunc&& callback, uint32_t fireTime, bool doStart)
+: fireTime (fireTime)
+, callbackFunc (std::move (callback))
+, platformTimer (nullptr)
+{
+	if (doStart)
+		start ();
+}
+
+//-----------------------------------------------------------------------------
+CVSTGUITimer::~CVSTGUITimer () noexcept = default;
+
+//-----------------------------------------------------------------------------
+void CVSTGUITimer::beforeDelete ()
+{
+	stop ();
+}
+
+//-----------------------------------------------------------------------------
+bool CVSTGUITimer::start ()
+{
+	if (platformTimer == nullptr)
+	{
+		platformTimer = getPlatformFactory ().createTimer (this);
+		if (platformTimer)
+		{
+			platformTimer->start (fireTime);
+		#if DEBUGLOG
+			DebugPrint ("Timer started (0x%x)\n", timerObject);
+		#endif
+		}
+	}
+	return (platformTimer != nullptr);
+}
+
+//-----------------------------------------------------------------------------
+bool CVSTGUITimer::stop ()
+{
+	if (platformTimer)
+	{
+		platformTimer->stop ();
+		platformTimer = nullptr;
+
+		#if DEBUGLOG
+		DebugPrint ("Timer stopped (0x%x)\n", timerObject);
+		#endif
+		return true;
+	}
+	return false;
+}
+
+//-----------------------------------------------------------------------------
+bool CVSTGUITimer::setFireTime (uint32_t newFireTime)
+{
+	if (fireTime != newFireTime)
+	{
+		bool wasRunning = stop ();
+		fireTime = newFireTime;
+		if (wasRunning)
+			return start ();
+		return true;
+	}
+	return false;
+}
+
+//-----------------------------------------------------------------------------
+void CVSTGUITimer::fire ()
+{
+	CBaseObjectGuard guard (this);
+	if (callbackFunc)
+		callbackFunc (this);
+}
+
+} // VSTGUI