summaryrefslogtreecommitdiff
path: root/src/resources/wallpaper.cpp
blob: 306e4120ae1b6ee479614ef92247bd58b126fed8 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
/*
 *  The Mana Client
 *  Copyright (C) 2009  The Mana World Development Team
 *  Copyright (C) 2009-2012  The Mana Developers
 *
 *  This file is part of The Mana Client.
 *
 *  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, see <http://www.gnu.org/licenses/>.
 */

#include "resources/wallpaper.h"

#include "resources/resourcemanager.h"
#include "log.h"

#include "utils/stringutils.h"
#include "configuration.h"

#include <physfs.h>

#include <algorithm>
#include <cstring>
#include <time.h>
#include <vector>

struct WallpaperData
{
    std::string filename;
    int width;
    int height;
};

inline std::ostream& operator <<(std::ostream &os, const WallpaperData &d)
{
    os << d.filename << "[" << d.width << "x" << d.height << "]";
    return os;
}

static std::vector<WallpaperData> wallpaperData;
static bool haveBackup; // Is the backup (no size given) version available?

static std::string wallpaperPath;
static std::string wallpaperFile;

static void initWallpaperPaths()
{
    // Init the path
    wallpaperPath = paths.getStringValue("wallpapers");

    if (wallpaperPath.empty())
    {
        wallpaperPath = branding.getStringValue("wallpapersPath");

        if (wallpaperPath.empty())
            wallpaperPath = "graphics/images/";
    }

    // Init the default file
    wallpaperFile = paths.getStringValue("wallpaperFile");

    if (wallpaperFile.empty())
    {
        wallpaperFile = branding.getStringValue("wallpaperFile");

        if (wallpaperFile.empty())
            wallpaperFile = "login_wallpaper.png";
    }
}

/**
 * Comparison function that puts the largest wallpaper first.
 */
bool wallpaperCompare(const WallpaperData &a, const 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();

    initWallpaperPaths();

    char **fileNames = PHYSFS_enumerateFiles(wallpaperPath.c_str());

    for (char **fileName = fileNames; *fileName; fileName++)
    {
        int width;
        int height;

        // If the backup file is found, we tell it.
        if (strncmp(*fileName, wallpaperFile.c_str(), strlen(*fileName)) == 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 = *fileName;
        filename = filename.substr(0, filename.rfind("_"));

        // Check that the base filename doesn't have any '%' markers.
        if (filename.find("%") == std::string::npos)
        {
            // Then, append the width and height search mask.
            filename.append("_%dx%d.png");

            if (sscanf(*fileName, filename.c_str(), &width, &height) == 2)
            {
                WallpaperData wp;
                wp.filename = wallpaperPath;
                wp.filename.append(*fileName);
                wp.width = width;
                wp.height = height;
                wallpaperData.push_back(wp);
            }
        }
    }

    PHYSFS_freeList(fileNames);

    std::sort(wallpaperData.begin(), wallpaperData.end(), wallpaperCompare);
}

std::string Wallpaper::getWallpaper(int width, int height)
{
    if (wallpaperData.empty())
        return haveBackup ? (wallpaperPath + wallpaperFile) : std::string();

    WallpaperData wallpaper;

    // Search for the smallest wallpaper at least as large as the screen
    std::vector<WallpaperData>::iterator iter;
    for (iter = wallpaperData.begin(); iter != wallpaperData.end(); iter++)
    {
        const WallpaperData &wp = *iter;

        if (wp.width >= width && wp.height >= height)
        {
            if (wallpaper.filename.empty() ||
                    (wallpaper.width < wp.width &&
                     wallpaper.height < wp.height))
            {
                wallpaper = wp;
            }
        }
    }

    // When no fitting wallpaper was found yet, pick the biggest one
    if (wallpaper.filename.empty())
    {
        wallpaper = wallpaperData.front();
    }

    return wallpaper.filename;
}