/*

 * 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);
}