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/*
* The Mana World
* Copyright (C) 2009-2010 The Mana World Development Team
*
* This file is part of The Mana World.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "resources/wallpaper.h"
#include "log.h"
#include "utils/stringutils.h"
#include <physfs.h>
#include <algorithm>
#include <cstring>
#include <time.h>
#include <vector>
#define WALLPAPER_FOLDER "graphics/images/"
#define WALLPAPER_BASE "login_wallpaper.png"
struct WallpaperData
{
std::string filename;
int width;
int height;
};
static std::vector<WallpaperData> wallpaperData;
static bool haveBackup; // Is the backup (no size given) version available?
bool wallpaperCompare(WallpaperData a, WallpaperData b)
{
int aa = a.width * a.height;
int ab = b.width * b.height;
return (aa > ab || (aa == ab && a.width > b.width));
}
void Wallpaper::loadWallpapers()
{
wallpaperData.clear();
char **imgs = PHYSFS_enumerateFiles(WALLPAPER_FOLDER);
for (char **i = imgs; *i != NULL; i++)
{
int width;
int height;
// If the backup file is found, we tell it.
if (strncmp (*i, WALLPAPER_BASE, strlen(*i)) == 0)
haveBackup = true;
// If the image format is terminated by: "_<width>x<height>.png"
// It is taken as a potential wallpaper.
// First, get the base filename of the image:
std::string filename = *i;
int separator = filename.rfind("_");
filename = filename.substr(0, separator);
// Then, append the width and height search mask.
filename.append("_%dx%d.png");
if (sscanf(*i, filename.c_str(), &width, &height) == 2)
{
WallpaperData wp;
wp.filename = WALLPAPER_FOLDER;
wp.filename.append(*i);
wp.width = width;
wp.height = height;
wallpaperData.push_back(wp);
}
}
PHYSFS_freeList(imgs);
std::sort(wallpaperData.begin(), wallpaperData.end(), wallpaperCompare);
}
std::string Wallpaper::getWallpaper(int width, int height)
{
std::vector<WallpaperData>::iterator iter;
WallpaperData wp;
// Wallpaper filename container
std::vector<std::string> wallPaperVector;
for (iter = wallpaperData.begin(); iter != wallpaperData.end(); iter++)
{
wp = *iter;
if (wp.width <= width && wp.height <= height)
wallPaperVector.push_back(wp.filename);
}
if (!wallPaperVector.empty())
{
// If we've got more than one occurence of a valid wallpaper...
if (wallPaperVector.size() > 0)
{
// Return randomly a wallpaper between vector[0] and
// vector[vector.size() - 1]
srand((unsigned) time(0));
return wallPaperVector
[int(wallPaperVector.size() * rand() / (RAND_MAX + 1.0))];
}
else // If there at least one, we return it
return wallPaperVector[0];
}
// Return the backup file if everything else failed...
if (haveBackup)
return std::string(WALLPAPER_FOLDER WALLPAPER_BASE);
// Return an empty string if everything else failed
return std::string();
}
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