501 lines
16 KiB
C
501 lines
16 KiB
C
struct icons {
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struct nk_image desktop;
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struct nk_image home;
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struct nk_image computer;
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struct nk_image directory;
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struct nk_image default_file;
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struct nk_image text_file;
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struct nk_image music_file;
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struct nk_image font_file;
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struct nk_image img_file;
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struct nk_image movie_file;
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};
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enum file_groups {
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FILE_GROUP_DEFAULT,
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FILE_GROUP_TEXT,
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FILE_GROUP_MUSIC,
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FILE_GROUP_FONT,
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FILE_GROUP_IMAGE,
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FILE_GROUP_MOVIE,
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FILE_GROUP_MAX
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};
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enum file_types {
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FILE_DEFAULT,
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FILE_TEXT,
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FILE_C_SOURCE,
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FILE_CPP_SOURCE,
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FILE_HEADER,
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FILE_CPP_HEADER,
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FILE_MP3,
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FILE_WAV,
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FILE_OGG,
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FILE_TTF,
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FILE_BMP,
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FILE_PNG,
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FILE_JPEG,
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FILE_PCX,
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FILE_TGA,
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FILE_GIF,
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FILE_MAX
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};
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struct file_group {
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enum file_groups group;
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const char *name;
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struct nk_image *icon;
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};
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struct file {
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enum file_types type;
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const char *suffix;
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enum file_groups group;
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};
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struct media {
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int font;
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int icon_sheet;
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struct icons icons;
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struct file_group group[FILE_GROUP_MAX];
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struct file files[FILE_MAX];
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};
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#define MAX_PATH_LEN 512
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struct file_browser {
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/* path */
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char file[MAX_PATH_LEN];
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char home[MAX_PATH_LEN];
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char desktop[MAX_PATH_LEN];
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char directory[MAX_PATH_LEN];
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/* directory content */
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char **files;
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char **directories;
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size_t file_count;
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size_t dir_count;
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struct media *media;
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};
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#ifdef __unix__
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#include <dirent.h>
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#include <unistd.h>
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#endif
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#ifndef _WIN32
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# include <pwd.h>
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#endif
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static void
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die(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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fputs("\n", stderr);
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exit(EXIT_FAILURE);
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}
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static struct nk_image
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icon_load(const char *filename)
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{
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int x,y,n;
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GLuint tex;
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unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
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if (!data) die("[SDL]: failed to load image: %s", filename);
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glGenTextures(1, &tex);
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glBindTexture(GL_TEXTURE_2D, tex);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
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glGenerateMipmap(GL_TEXTURE_2D);
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stbi_image_free(data);
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return nk_image_id((int)tex);
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}
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#if 0
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static char*
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file_load(const char* path, size_t* siz)
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{
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char *buf;
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FILE *fd = fopen(path, "rb");
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if (!fd) die("Failed to open file: %s\n", path);
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fseek(fd, 0, SEEK_END);
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*siz = (size_t)ftell(fd);
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fseek(fd, 0, SEEK_SET);
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buf = (char*)calloc(*siz, 1);
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fread(buf, *siz, 1, fd);
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fclose(fd);
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return buf;
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}
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#endif
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static char*
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str_duplicate(const char *src)
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{
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char *ret;
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size_t len = strlen(src);
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if (!len) return 0;
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ret = (char*)malloc(len+1);
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if (!ret) return 0;
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memcpy(ret, src, len);
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ret[len] = '\0';
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return ret;
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}
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static void
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dir_free_list(char **list, size_t size)
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{
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size_t i;
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for (i = 0; i < size; ++i)
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free(list[i]);
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free(list);
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}
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static char**
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dir_list(const char *dir, int return_subdirs, size_t *count)
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{
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size_t n = 0;
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char buffer[MAX_PATH_LEN];
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char **results = NULL;
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const DIR *none = NULL;
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size_t capacity = 32;
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size_t size;
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DIR *z;
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assert(dir);
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assert(count);
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strncpy(buffer, dir, MAX_PATH_LEN);
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buffer[MAX_PATH_LEN - 1] = 0;
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n = strlen(buffer);
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if (n > 0 && (buffer[n-1] != '/'))
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buffer[n++] = '/';
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size = 0;
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z = opendir(dir);
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if (z != none) {
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int nonempty = 1;
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struct dirent *data = readdir(z);
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nonempty = (data != NULL);
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if (!nonempty) return NULL;
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do {
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DIR *y;
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char *p;
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int is_subdir;
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if (data->d_name[0] == '.')
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continue;
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strncpy(buffer + n, data->d_name, MAX_PATH_LEN-n);
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y = opendir(buffer);
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is_subdir = (y != NULL);
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if (y != NULL) closedir(y);
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if ((return_subdirs && is_subdir) || (!is_subdir && !return_subdirs)){
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if (!size) {
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results = (char**)calloc(sizeof(char*), capacity);
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} else if (size >= capacity) {
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void *old = results;
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capacity = capacity * 2;
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results = (char**)realloc(results, capacity * sizeof(char*));
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assert(results);
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if (!results) free(old);
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}
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p = str_duplicate(data->d_name);
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results[size++] = p;
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}
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} while ((data = readdir(z)) != NULL);
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}
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if (z) closedir(z);
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*count = size;
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return results;
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}
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static struct file_group
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FILE_GROUP(enum file_groups group, const char *name, struct nk_image *icon)
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{
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struct file_group fg;
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fg.group = group;
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fg.name = name;
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fg.icon = icon;
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return fg;
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}
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static struct file
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FILE_DEF(enum file_types type, const char *suffix, enum file_groups group)
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{
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struct file fd;
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fd.type = type;
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fd.suffix = suffix;
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fd.group = group;
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return fd;
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}
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static struct nk_image*
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media_icon_for_file(struct media *media, const char *file)
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{
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int i = 0;
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const char *s = file;
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char suffix[4];
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int found = 0;
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memset(suffix, 0, sizeof(suffix));
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/* extract suffix .xxx from file */
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while (*s++ != '\0') {
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if (found && i < 3)
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suffix[i++] = *s;
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if (*s == '.') {
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if (found){
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found = 0;
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break;
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}
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found = 1;
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}
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}
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/* check for all file definition of all groups for fitting suffix*/
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for (i = 0; i < FILE_MAX && found; ++i) {
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struct file *d = &media->files[i];
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{
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const char *f = d->suffix;
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s = suffix;
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while (f && *f && *s && *s == *f) {
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s++; f++;
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}
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/* found correct file definition so */
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if (f && *s == '\0' && *f == '\0')
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return media->group[d->group].icon;
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}
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}
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return &media->icons.default_file;
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}
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static void
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media_init(struct media *media)
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{
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/* file groups */
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struct icons *icons = &media->icons;
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media->group[FILE_GROUP_DEFAULT] = FILE_GROUP(FILE_GROUP_DEFAULT,"default",&icons->default_file);
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media->group[FILE_GROUP_TEXT] = FILE_GROUP(FILE_GROUP_TEXT, "textual", &icons->text_file);
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media->group[FILE_GROUP_MUSIC] = FILE_GROUP(FILE_GROUP_MUSIC, "music", &icons->music_file);
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media->group[FILE_GROUP_FONT] = FILE_GROUP(FILE_GROUP_FONT, "font", &icons->font_file);
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media->group[FILE_GROUP_IMAGE] = FILE_GROUP(FILE_GROUP_IMAGE, "image", &icons->img_file);
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media->group[FILE_GROUP_MOVIE] = FILE_GROUP(FILE_GROUP_MOVIE, "movie", &icons->movie_file);
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/* files */
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media->files[FILE_DEFAULT] = FILE_DEF(FILE_DEFAULT, NULL, FILE_GROUP_DEFAULT);
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media->files[FILE_TEXT] = FILE_DEF(FILE_TEXT, "txt", FILE_GROUP_TEXT);
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media->files[FILE_C_SOURCE] = FILE_DEF(FILE_C_SOURCE, "c", FILE_GROUP_TEXT);
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media->files[FILE_CPP_SOURCE] = FILE_DEF(FILE_CPP_SOURCE, "cpp", FILE_GROUP_TEXT);
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media->files[FILE_HEADER] = FILE_DEF(FILE_HEADER, "h", FILE_GROUP_TEXT);
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media->files[FILE_CPP_HEADER] = FILE_DEF(FILE_HEADER, "hpp", FILE_GROUP_TEXT);
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media->files[FILE_MP3] = FILE_DEF(FILE_MP3, "mp3", FILE_GROUP_MUSIC);
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media->files[FILE_WAV] = FILE_DEF(FILE_WAV, "wav", FILE_GROUP_MUSIC);
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media->files[FILE_OGG] = FILE_DEF(FILE_OGG, "ogg", FILE_GROUP_MUSIC);
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media->files[FILE_TTF] = FILE_DEF(FILE_TTF, "ttf", FILE_GROUP_FONT);
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media->files[FILE_BMP] = FILE_DEF(FILE_BMP, "bmp", FILE_GROUP_IMAGE);
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media->files[FILE_PNG] = FILE_DEF(FILE_PNG, "png", FILE_GROUP_IMAGE);
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media->files[FILE_JPEG] = FILE_DEF(FILE_JPEG, "jpg", FILE_GROUP_IMAGE);
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media->files[FILE_PCX] = FILE_DEF(FILE_PCX, "pcx", FILE_GROUP_IMAGE);
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media->files[FILE_TGA] = FILE_DEF(FILE_TGA, "tga", FILE_GROUP_IMAGE);
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media->files[FILE_GIF] = FILE_DEF(FILE_GIF, "gif", FILE_GROUP_IMAGE);
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}
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static void
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file_browser_reload_directory_content(struct file_browser *browser, const char *path)
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{
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strncpy(browser->directory, path, MAX_PATH_LEN);
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browser->directory[MAX_PATH_LEN - 1] = 0;
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dir_free_list(browser->files, browser->file_count);
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dir_free_list(browser->directories, browser->dir_count);
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browser->files = dir_list(path, 0, &browser->file_count);
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browser->directories = dir_list(path, 1, &browser->dir_count);
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}
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static void
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file_browser_init(struct file_browser *browser, struct media *media)
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{
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memset(browser, 0, sizeof(*browser));
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browser->media = media;
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{
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/* load files and sub-directory list */
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const char *home = getenv("HOME");
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#ifdef _WIN32
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if (!home) home = getenv("USERPROFILE");
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#else
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if (!home) home = getpwuid(getuid())->pw_dir;
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{
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size_t l;
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strncpy(browser->home, home, MAX_PATH_LEN);
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browser->home[MAX_PATH_LEN - 1] = 0;
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l = strlen(browser->home);
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strcpy(browser->home + l, "/");
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strcpy(browser->directory, browser->home);
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}
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#endif
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{
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size_t l;
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strcpy(browser->desktop, browser->home);
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l = strlen(browser->desktop);
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strcpy(browser->desktop + l, "desktop/");
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}
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browser->files = dir_list(browser->directory, 0, &browser->file_count);
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browser->directories = dir_list(browser->directory, 1, &browser->dir_count);
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}
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}
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static void
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file_browser_free(struct file_browser *browser)
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{
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if (browser->files)
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dir_free_list(browser->files, browser->file_count);
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if (browser->directories)
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dir_free_list(browser->directories, browser->dir_count);
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browser->files = NULL;
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browser->directories = NULL;
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memset(browser, 0, sizeof(*browser));
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}
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static int
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file_browser_run(struct file_browser *browser, struct nk_context *ctx)
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{
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int ret = 0;
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struct media *media = browser->media;
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struct nk_rect total_space;
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static nk_bool file_browser_is_open = nk_true;
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if (file_browser_is_open)
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{
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if (nk_begin(ctx, "File Browser", nk_rect(50, 50, 600, 400),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|NK_WINDOW_NO_SCROLLBAR|
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NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
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{
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static float ratio[] = {0.25f, NK_UNDEFINED};
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float spacing_x = ctx->style.window.spacing.x;
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/* output path directory selector in the menubar */
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ctx->style.window.spacing.x = 0;
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nk_menubar_begin(ctx);
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{
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char *d = browser->directory;
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char *begin = d + 1;
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nk_layout_row_dynamic(ctx, 25, 6);
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while (*d++) {
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if (*d == '/') {
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*d = '\0';
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if (nk_button_label(ctx, begin)) {
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*d++ = '/'; *d = '\0';
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file_browser_reload_directory_content(browser, browser->directory);
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break;
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}
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*d = '/';
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begin = d + 1;
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}
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}
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}
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nk_menubar_end(ctx);
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ctx->style.window.spacing.x = spacing_x;
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/* window layout */
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total_space = nk_window_get_content_region(ctx);
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nk_layout_row(ctx, NK_DYNAMIC, total_space.h - 40, 2, ratio);
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nk_group_begin(ctx, "Special", NK_WINDOW_NO_SCROLLBAR);
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{
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struct nk_image home = media->icons.home;
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struct nk_image desktop = media->icons.desktop;
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struct nk_image computer = media->icons.computer;
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nk_layout_row_dynamic(ctx, 40, 1);
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if (nk_button_image_label(ctx, home, "home", NK_TEXT_CENTERED))
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file_browser_reload_directory_content(browser, browser->home);
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if (nk_button_image_label(ctx,desktop,"desktop",NK_TEXT_CENTERED))
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file_browser_reload_directory_content(browser, browser->desktop);
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if (nk_button_image_label(ctx,computer,"computer",NK_TEXT_CENTERED))
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file_browser_reload_directory_content(browser, "/");
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nk_group_end(ctx);
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}
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/* output directory content window */
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nk_group_begin(ctx, "Content", NK_WINDOW_BORDER);
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{
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int index = -1;
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size_t i = 0, j = 0;
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size_t rows = 0, cols = 0;
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size_t count = browser->dir_count + browser->file_count;
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/* File icons layout */
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cols = 2;
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rows = count / cols;
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static float ratio2[] = {0.08f, NK_UNDEFINED};
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nk_layout_row(ctx, NK_DYNAMIC, 30, 2, ratio2);
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for (i = 0; i <= rows; i += 1) {
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size_t n = j + cols;
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for (; j < count && j < n; ++j) {
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/* draw one column of icons */
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if (j < browser->dir_count) {
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/* draw and execute directory buttons */
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if (nk_button_image(ctx,media->icons.directory))
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index = (int)j;
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nk_label(ctx, browser->directories[j], NK_TEXT_LEFT);
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} else {
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/* draw and execute files buttons */
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struct nk_image *icon;
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size_t fileIndex = ((size_t)j - browser->dir_count);
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icon = media_icon_for_file(media,browser->files[fileIndex]);
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if (nk_button_image(ctx, *icon)) {
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strncpy(browser->file, browser->directory, MAX_PATH_LEN);
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n = strlen(browser->file);
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strncpy(browser->file + n, browser->files[fileIndex], MAX_PATH_LEN - n);
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ret = 1;
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}
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}
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/* draw one column of labels */
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if (j >= browser->dir_count) {
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size_t t = j - browser->dir_count;
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nk_label(ctx,browser->files[t],NK_TEXT_LEFT);
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}
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}
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}
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if (index != -1) {
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size_t n = strlen(browser->directory);
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strncpy(browser->directory + n, browser->directories[index], MAX_PATH_LEN - n);
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n = strlen(browser->directory);
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if (n < MAX_PATH_LEN - 1) {
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browser->directory[n] = '/';
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browser->directory[n+1] = '\0';
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}
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file_browser_reload_directory_content(browser, browser->directory);
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}
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nk_group_end(ctx);
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}
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nk_layout_row_dynamic(ctx, 30, 5);
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nk_label(ctx,"",NK_TEXT_LEFT);
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nk_label(ctx,"",NK_TEXT_LEFT);
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nk_label(ctx,"",NK_TEXT_LEFT);
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if(nk_button_label(ctx, "Cancel"))
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{
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fprintf(stdout, "File dialog has been closed!\n");
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file_browser_is_open = nk_false;
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}
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if(nk_button_label(ctx, "Open"))
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fprintf(stdout, "Insert routine to open/save the file!\n");
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}
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nk_end(ctx);
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}
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return ret;
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}
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