/** 
 * @file llcameraview.cpp
 * @brief Container for movement buttons like forward, left, fly
 *
 * $LicenseInfo:firstyear=2001&license=viewergpl$
 * 
 * Copyright (c) 2001-2008, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
 * 
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llcameraview.h"
#include "llvieweruictrlfactory.h"

// Library includes
#include "llfontgl.h"

// Viewer includes
#include "llagent.h"
#include "lljoystickbutton.h"
#include "llviewercontrol.h"
#include "llviewerwindow.h"
#include "llappviewer.h"

// Constants
const char *CAMERA_TITLE = "";
const F32 CAMERA_BUTTON_DELAY = 0.0f;

// Globals
LLFloaterCamera* gFloaterCamera = NULL;


//
// Member functions
//

LLFloaterCamera::LLFloaterCamera(const std::string& name)
:	LLFloater(name, "FloaterCameraRect", CAMERA_TITLE, FALSE, 100, 100, DRAG_ON_TOP,
			  MINIMIZE_NO)
{
	setIsChrome(TRUE);
	
	S32 top = getRect().getHeight();
	S32 bottom = 0;
	S32 left = 16;

	const S32 ROTATE_WIDTH = 64;
	mRotate = new LLJoystickCameraRotate("cam rotate stick", 
		LLRect( left, top, left + ROTATE_WIDTH, bottom ),
		"cam_rotate_out.tga",
		"cam_rotate_in.tga" );
	mRotate->setFollows(FOLLOWS_TOP | FOLLOWS_LEFT);
	mRotate->setHeldDownDelay(CAMERA_BUTTON_DELAY);
	mRotate->setToolTip( LLString("Rotate Camera Around Focus" )); // *TODO: Translate
	mRotate->setSoundFlags(MOUSE_DOWN | MOUSE_UP);
	addChild(mRotate);

	left += ROTATE_WIDTH;

	const S32 ZOOM_WIDTH = 16;
	mZoom = new LLJoystickCameraZoom( 
		"zoom",
		LLRect( left, top, left + ZOOM_WIDTH, bottom ),
		"cam_zoom_out.tga",
		"cam_zoom_plus_in.tga",
		"cam_zoom_minus_in.tga");
	mZoom->setFollows(FOLLOWS_TOP | FOLLOWS_LEFT);
	mZoom->setHeldDownDelay(CAMERA_BUTTON_DELAY);
	mZoom->setToolTip( LLString("Zoom Camera Towards Focus" )); // *TODO: Translate
	mZoom->setSoundFlags(MOUSE_DOWN | MOUSE_UP);
	addChild(mZoom);

	left += ZOOM_WIDTH;
	
	const S32 TRACK_WIDTH = 64;
	mTrack = new LLJoystickCameraTrack("cam track stick", 
		LLRect( left, top, left + TRACK_WIDTH, bottom ),
		"cam_tracking_out.tga",
		"cam_tracking_in.tga");
	mTrack->setFollows(FOLLOWS_TOP | FOLLOWS_LEFT);
	mTrack->setHeldDownDelay(CAMERA_BUTTON_DELAY);
	mTrack->setToolTip( LLString("Move Camera Up and Down, Left and Right" )); // *TODO: Translate
	mTrack->setSoundFlags(MOUSE_DOWN | MOUSE_UP);
	addChild(mTrack);
}


LLFloaterCamera::~LLFloaterCamera()
{
	// children all deleted by LLView destructor
	gFloaterCamera = NULL;
}

// virtual
void LLFloaterCamera::onClose(bool app_quitting)
{
	LLFloater::onClose(app_quitting);
	
	if (!app_quitting)
	{
		gSavedSettings.setBOOL("ShowCameraControls", FALSE);
	}
}

//
// Static member functions
//

// static
void LLFloaterCamera::show(void*)
{
	if(!gFloaterCamera)
	{
		gFloaterCamera = new LLFloaterCamera("camera floater");
	}
	gFloaterCamera->open();	/* Flawfinder: ignore */
	gSavedSettings.setBOOL("ShowCameraControls", TRUE);
}

// static
void LLFloaterCamera::toggle(void*)
{
	if (gFloaterCamera)
	{
		gFloaterCamera->close();
	}
	else
	{
		show(NULL);
	}
}

// static
BOOL LLFloaterCamera::visible(void*)
{
	if (gFloaterCamera)
	{
		return gFloaterCamera->getVisible();
	}
	else
	{
		return FALSE;
	}
}

LLFloaterJoystick	*LLFloaterJoystick::sInstance = NULL;


LLFloaterJoystick::LLFloaterJoystick( )
: LLFloater("Joystick floater")
{
	sInstance = this;
}

LLFloaterJoystick::~LLFloaterJoystick()
{
	sInstance = NULL;
}

void LLFloaterJoystick::draw()
{
	for (U32 i = 0; i < 8; i++)
	{
		F32 value = gViewerWindow->getWindow()->getJoystickAxis(i);
		mAxis[i]->addValue(value*gFrameIntervalSeconds);
		
		if (mAxisBar[i]->mMinBar > value)
		{
			mAxisBar[i]->mMinBar = value;
		}
		if (mAxisBar[i]->mMaxBar < value)
		{
			mAxisBar[i]->mMaxBar = value;
		}
	}

	LLFloater::draw();
}

// static
void LLFloaterJoystick::show(void*)
{
	if (sInstance)
	{
		sInstance->open();	/*Flawfinder: ignore*/
	}
	else
	{
		LLFloaterJoystick* floater = new LLFloaterJoystick();

		gUICtrlFactory->buildFloater(floater, "floater_joystick.xml");
		F32 range = gSavedSettings.getBOOL("FlycamAbsolute") ? 1024.f : 2.f;
		LLUIString axis = floater->getUIString("Axis");
		LLUIString joystick = floater->getUIString("JoystickMonitor");

		LLView* child = floater->getChild<LLView>("ZoomLabel");
		LLRect rect;

		if (child)
		{
			LLRect r = child->getRect();
			LLRect f = floater->getRect();
			rect = LLRect(150, r.mTop, r.mRight, 0);
		}

		floater->mAxisStats = new LLStatView("axis values", joystick, "", rect);
		floater->mAxisStats->setDisplayChildren(TRUE);

		for (U32 i = 0; i < 8; i++)
		{
			axis.setArg("[NUM]", llformat("%d", i));
			floater->mAxis[i] = new LLStat(4);
			floater->mAxisBar[i] = floater->mAxisStats->addStat(axis, floater->mAxis[i]);
			floater->mAxisBar[i]->mMinBar = -range;
			floater->mAxisBar[i]->mMaxBar = range;
			floater->mAxisBar[i]->mLabelSpacing = range * 0.5f;
			floater->mAxisBar[i]->mTickSpacing = range * 0.25f;			
		}

		

		floater->addChild(floater->mAxisStats);
		floater->open();	/*Flawfinder: ignore*/
	}
}

//static 
LLFloaterJoystick* LLFloaterJoystick::getInstance()
{
	return sInstance;
}

// static
BOOL LLFloaterJoystick::visible(void*)
{
	return (sInstance != NULL);
}