/*
 * Copyright 2012, Haiku, Inc.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 * 		Aaron Hill <serac@hillvisions.com>
 *		Alexander von Gluck <kallisti5@unixzen.com>
 */
 

#include "GLifeSaver.h"

#include <GLView.h>
#include <ScreenSaver.h>
#include <stdio.h>
#include <stdlib.h>
#include <View.h>

#include "GLifeGrid.h"
#include "GLifeState.h"
#include "GLifeConfig.h"
#include "GLifeView.h"


// ------------------------------------------------------
//  GLifeSaver Class Constructor Definition
GLifeSaver::GLifeSaver(BMessage* pbmPrefs, image_id iidImage)
	:
	BScreenSaver(pbmPrefs, iidImage)
{
	// Check for preferences
	if (!pbmPrefs->IsEmpty())
		RestoreState(pbmPrefs);
	
	// Seed random number generator
	srandom(system_time());
}


// ------------------------------------------------------
//  GLifeSaver Class SaveState Definition
status_t
GLifeSaver::SaveState(BMessage* pbmPrefs) const
{
	return fGLifeState.SaveState(pbmPrefs);
}


// ------------------------------------------------------
//  GLifeSaver Class RestoreState Definition
void
GLifeSaver::RestoreState(BMessage* pbmPrefs)
{
	fGLifeState.RestoreState(pbmPrefs);
}


// ------------------------------------------------------
//  GLifeSaver Class StartConfig Definition
void
GLifeSaver::StartConfig(BView* pbvView)
{
	// Setup the "config" class
	GLifeConfig* pglcConfig = new GLifeConfig(pbvView->Bounds(),
		&fGLifeState);

	pbvView->AddChild(pglcConfig);
}


// ------------------------------------------------------
//  GLifeSaver Class StartSaver Definition
status_t
GLifeSaver::StartSaver(BView* pbvView, bool bPreview)
{
	SetTickSize(c_iTickSize);

	fGLifeViewport = new GLifeView(pbvView->Bounds(),
		"GLifeView", B_FOLLOW_NONE, BGL_RGB | BGL_DEPTH | BGL_DOUBLE,
		&fGLifeState);

	pbvView->AddChild(fGLifeViewport);

	return B_OK;
}


// ------------------------------------------------------
//  GLifeSaver Class StopSaver Definition
void
GLifeSaver::StopSaver(void)
{
	if (fGLifeViewport != NULL)
		fGLifeViewport->EnableDirectMode(false);
}


// ------------------------------------------------------
//  GLifeSaver Class DirectConnected Definition
void
GLifeSaver::DirectConnected(direct_buffer_info* pdbiInfo)
{
	// Enable or disable direct rendering
	if (fGLifeViewport != NULL) {
		fGLifeViewport->DirectConnected(pdbiInfo);
		fGLifeViewport->EnableDirectMode(true);
	}
}


// ------------------------------------------------------
//  GLifeSaver Class DirectDraw Definition
void
GLifeSaver::Draw(BView*, int32 iFrame)
{
	fGLifeViewport->Advance();
}


// ------------------------------------------------------
//  Main Instantiation Function
extern "C" _EXPORT BScreenSaver*
instantiate_screen_saver(BMessage* pbmPrefs, image_id iidImage)
{
	return new GLifeSaver(pbmPrefs, iidImage);
}