CHUI-487, CHUI-488 W.I.P. #2 (Enable flashing FUI button behavior and...

CHUI-487, CHUI-488 W.I.P. #2 (Enable flashing FUI button behavior and Implement Flashing Conversations panel line item behavior): build new class LLFlashTimer based on LLSysWellChiclet::FlashToLitTimer; prepared it for general purpose; replaced LLSysWellChiclet::FlashToLitTimer to LLFlashTimer

indra/newview/llflashtimer.cpp

+/**
+ * @file llflashtimer.cpp
+ * @brief LLFlashTimer class implementation
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llflashtimer.h"
+#include "llviewercontrol.h"
+
+LLFlashTimer::LLFlashTimer(callback_t cb, S32 count, F32 period)
+		: LLEventTimer(period)
+		, mCallback(cb)
+		, mCurrentTickCount(0)
+{
+	mEventTimer.stop();
+
+	// By default use settings from settings.xml to be able change them via Debug settings. See EXT-5973.
+	// Due to Timer is implemented as derived class from EventTimer it is impossible to change period
+	// in runtime. So, both settings are made as required restart.
+	mFlashCount = 2 * ((count>0)? count : gSavedSettings.getS32("FlashCount"));
+	if (mPeriod<=0)
+	{
+		mPeriod = gSavedSettings.getF32("FlashPeriod");
+	}
+}
+
+BOOL LLFlashTimer::tick()
+{
+	bool blink = !(mCurrentTickCount % 2);
+	mCallback(blink);
+
+	if (++mCurrentTickCount >= mFlashCount)
+	{
+		mEventTimer.stop();
+	}
+
+	return FALSE;
+}
+
+void LLFlashTimer::startFlashing()
+{
+	mCurrentTickCount = 0;
+	mEventTimer.start();
+}
+
+void LLFlashTimer::stopFlashing()
+{
+	mEventTimer.stop();
+}

indra/newview/llflashtimer.h

+/**
+ * @file llflashtimer.h
+ * @brief LLFlashTimer class implementation
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_FLASHTIMER_H
+#define LL_FLASHTIMER_H
+
+#include "lleventtimer.h"
+
+class LLFlashTimer : public LLEventTimer
+{
+public:
+
+	typedef boost::function<void (bool)> callback_t;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param count - how many times callback should be called (twice to not change original state)
+	 * @param period - how frequently callback should be called
+	 * @param cb - callback to be called each tick
+	 */
+	LLFlashTimer(callback_t cb, S32 count = 0, F32 period = 0.0);
+	~LLFlashTimer() {};
+
+	/*virtual*/ BOOL tick();
+
+	void startFlashing();
+	void stopFlashing();
+
+private:
+	callback_t		mCallback;
+	/**
+	 * How many times Well will blink.
+	 */
+	S32 mFlashCount;
+	S32 mCurrentTickCount;
+};
+
+#endif /* LL_FLASHTIMER_H */