Integrate file browser with glfw opengl2 demo (#400) and restructure demo/ directory accordingly

demo/allegro5/main.c

@@ -53,19 +53,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/common/file_browser.c

@@ -0,0 +1,486 @@
+struct icons {
+    struct nk_image desktop;
+    struct nk_image home;
+    struct nk_image computer;
+    struct nk_image directory;
+
+    struct nk_image default_file;
+    struct nk_image text_file;
+    struct nk_image music_file;
+    struct nk_image font_file;
+    struct nk_image img_file;
+    struct nk_image movie_file;
+};
+
+enum file_groups {
+    FILE_GROUP_DEFAULT,
+    FILE_GROUP_TEXT,
+    FILE_GROUP_MUSIC,
+    FILE_GROUP_FONT,
+    FILE_GROUP_IMAGE,
+    FILE_GROUP_MOVIE,
+    FILE_GROUP_MAX
+};
+
+enum file_types {
+    FILE_DEFAULT,
+    FILE_TEXT,
+    FILE_C_SOURCE,
+    FILE_CPP_SOURCE,
+    FILE_HEADER,
+    FILE_CPP_HEADER,
+    FILE_MP3,
+    FILE_WAV,
+    FILE_OGG,
+    FILE_TTF,
+    FILE_BMP,
+    FILE_PNG,
+    FILE_JPEG,
+    FILE_PCX,
+    FILE_TGA,
+    FILE_GIF,
+    FILE_MAX
+};
+
+struct file_group {
+    enum file_groups group;
+    const char *name;
+    struct nk_image *icon;
+};
+
+struct file {
+    enum file_types type;
+    const char *suffix;
+    enum file_groups group;
+};
+
+struct media {
+    int font;
+    int icon_sheet;
+    struct icons icons;
+    struct file_group group[FILE_GROUP_MAX];
+    struct file files[FILE_MAX];
+};
+
+#define MAX_PATH_LEN 512
+struct file_browser {
+    /* path */
+    char file[MAX_PATH_LEN];
+    char home[MAX_PATH_LEN];
+    char desktop[MAX_PATH_LEN];
+    char directory[MAX_PATH_LEN];
+
+    /* directory content */
+    char **files;
+    char **directories;
+    size_t file_count;
+    size_t dir_count;
+    struct media *media;
+};
+
+#ifdef __unix__
+#include <dirent.h>
+#include <unistd.h>
+#endif
+
+#ifndef _WIN32
+# include <pwd.h>
+#endif
+
+static void
+die(const char *fmt, ...)
+{
+    va_list ap;
+    va_start(ap, fmt);
+    vfprintf(stderr, fmt, ap);
+    va_end(ap);
+    fputs("\n", stderr);
+    exit(EXIT_FAILURE);
+}
+
+static struct nk_image
+icon_load(const char *filename)
+{
+    int x,y,n;
+    GLuint tex;
+    unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
+    if (!data) die("[SDL]: failed to load image: %s", filename);
+
+    glGenTextures(1, &tex);
+    glBindTexture(GL_TEXTURE_2D, tex);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
+    glGenerateMipmap(GL_TEXTURE_2D);
+    stbi_image_free(data);
+    return nk_image_id((int)tex);
+}
+
+#if 0
+static char*
+file_load(const char* path, size_t* siz)
+{
+    char *buf;
+    FILE *fd = fopen(path, "rb");
+    if (!fd) die("Failed to open file: %s\n", path);
+    fseek(fd, 0, SEEK_END);
+    *siz = (size_t)ftell(fd);
+    fseek(fd, 0, SEEK_SET);
+    buf = (char*)calloc(*siz, 1);
+    fread(buf, *siz, 1, fd);
+    fclose(fd);
+    return buf;
+}
+#endif
+
+static char*
+str_duplicate(const char *src)
+{
+    char *ret;
+    size_t len = strlen(src);
+    if (!len) return 0;
+    ret = (char*)malloc(len+1);
+    if (!ret) return 0;
+    memcpy(ret, src, len);
+    ret[len] = '\0';
+    return ret;
+}
+
+static void
+dir_free_list(char **list, size_t size)
+{
+    size_t i;
+    for (i = 0; i < size; ++i)
+        free(list[i]);
+    free(list);
+}
+
+static char**
+dir_list(const char *dir, int return_subdirs, size_t *count)
+{
+    size_t n = 0;
+    char buffer[MAX_PATH_LEN];
+    char **results = NULL;
+    const DIR *none = NULL;
+    size_t capacity = 32;
+    size_t size;
+    DIR *z;
+
+    assert(dir);
+    assert(count);
+    strncpy(buffer, dir, MAX_PATH_LEN);
+    buffer[MAX_PATH_LEN - 1] = 0;
+    n = strlen(buffer);
+
+    if (n > 0 && (buffer[n-1] != '/'))
+        buffer[n++] = '/';
+
+    size = 0;
+
+    z = opendir(dir);
+    if (z != none) {
+        int nonempty = 1;
+        struct dirent *data = readdir(z);
+        nonempty = (data != NULL);
+        if (!nonempty) return NULL;
+
+        do {
+            DIR *y;
+            char *p;
+            int is_subdir;
+            if (data->d_name[0] == '.')
+                continue;
+
+            strncpy(buffer + n, data->d_name, MAX_PATH_LEN-n);
+            y = opendir(buffer);
+            is_subdir = (y != NULL);
+            if (y != NULL) closedir(y);
+
+            if ((return_subdirs && is_subdir) || (!is_subdir && !return_subdirs)){
+                if (!size) {
+                    results = (char**)calloc(sizeof(char*), capacity);
+                } else if (size >= capacity) {
+                    void *old = results;
+                    capacity = capacity * 2;
+                    results = (char**)realloc(results, capacity * sizeof(char*));
+                    assert(results);
+                    if (!results) free(old);
+                }
+                p = str_duplicate(data->d_name);
+                results[size++] = p;
+            }
+        } while ((data = readdir(z)) != NULL);
+    }
+
+    if (z) closedir(z);
+    *count = size;
+    return results;
+}
+
+static struct file_group
+FILE_GROUP(enum file_groups group, const char *name, struct nk_image *icon)
+{
+    struct file_group fg;
+    fg.group = group;
+    fg.name = name;
+    fg.icon = icon;
+    return fg;
+}
+
+static struct file
+FILE_DEF(enum file_types type, const char *suffix, enum file_groups group)
+{
+    struct file fd;
+    fd.type = type;
+    fd.suffix = suffix;
+    fd.group = group;
+    return fd;
+}
+
+static struct nk_image*
+media_icon_for_file(struct media *media, const char *file)
+{
+    int i = 0;
+    const char *s = file;
+    char suffix[4];
+    int found = 0;
+    memset(suffix, 0, sizeof(suffix));
+
+    /* extract suffix .xxx from file */
+    while (*s++ != '\0') {
+        if (found && i < 3)
+            suffix[i++] = *s;
+
+        if (*s == '.') {
+            if (found){
+                found = 0;
+                break;
+            }
+            found = 1;
+        }
+    }
+
+    /* check for all file definition of all groups for fitting suffix*/
+    for (i = 0; i < FILE_MAX && found; ++i) {
+        struct file *d = &media->files[i];
+        {
+            const char *f = d->suffix;
+            s = suffix;
+            while (f && *f && *s && *s == *f) {
+                s++; f++;
+            }
+
+            /* found correct file definition so */
+            if (f && *s == '\0' && *f == '\0')
+                return media->group[d->group].icon;
+        }
+    }
+    return &media->icons.default_file;
+}
+
+static void
+media_init(struct media *media)
+{
+    /* file groups */
+    struct icons *icons = &media->icons;
+    media->group[FILE_GROUP_DEFAULT] = FILE_GROUP(FILE_GROUP_DEFAULT,"default",&icons->default_file);
+    media->group[FILE_GROUP_TEXT] = FILE_GROUP(FILE_GROUP_TEXT, "textual", &icons->text_file);
+    media->group[FILE_GROUP_MUSIC] = FILE_GROUP(FILE_GROUP_MUSIC, "music", &icons->music_file);
+    media->group[FILE_GROUP_FONT] = FILE_GROUP(FILE_GROUP_FONT, "font", &icons->font_file);
+    media->group[FILE_GROUP_IMAGE] = FILE_GROUP(FILE_GROUP_IMAGE, "image", &icons->img_file);
+    media->group[FILE_GROUP_MOVIE] = FILE_GROUP(FILE_GROUP_MOVIE, "movie", &icons->movie_file);
+
+    /* files */
+    media->files[FILE_DEFAULT] = FILE_DEF(FILE_DEFAULT, NULL, FILE_GROUP_DEFAULT);
+    media->files[FILE_TEXT] = FILE_DEF(FILE_TEXT, "txt", FILE_GROUP_TEXT);
+    media->files[FILE_C_SOURCE] = FILE_DEF(FILE_C_SOURCE, "c", FILE_GROUP_TEXT);
+    media->files[FILE_CPP_SOURCE] = FILE_DEF(FILE_CPP_SOURCE, "cpp", FILE_GROUP_TEXT);
+    media->files[FILE_HEADER] = FILE_DEF(FILE_HEADER, "h", FILE_GROUP_TEXT);
+    media->files[FILE_CPP_HEADER] = FILE_DEF(FILE_HEADER, "hpp", FILE_GROUP_TEXT);
+    media->files[FILE_MP3] = FILE_DEF(FILE_MP3, "mp3", FILE_GROUP_MUSIC);
+    media->files[FILE_WAV] = FILE_DEF(FILE_WAV, "wav", FILE_GROUP_MUSIC);
+    media->files[FILE_OGG] = FILE_DEF(FILE_OGG, "ogg", FILE_GROUP_MUSIC);
+    media->files[FILE_TTF] = FILE_DEF(FILE_TTF, "ttf", FILE_GROUP_FONT);
+    media->files[FILE_BMP] = FILE_DEF(FILE_BMP, "bmp", FILE_GROUP_IMAGE);
+    media->files[FILE_PNG] = FILE_DEF(FILE_PNG, "png", FILE_GROUP_IMAGE);
+    media->files[FILE_JPEG] = FILE_DEF(FILE_JPEG, "jpg", FILE_GROUP_IMAGE);
+    media->files[FILE_PCX] = FILE_DEF(FILE_PCX, "pcx", FILE_GROUP_IMAGE);
+    media->files[FILE_TGA] = FILE_DEF(FILE_TGA, "tga", FILE_GROUP_IMAGE);
+    media->files[FILE_GIF] = FILE_DEF(FILE_GIF, "gif", FILE_GROUP_IMAGE);
+}
+
+static void
+file_browser_reload_directory_content(struct file_browser *browser, const char *path)
+{
+    strncpy(browser->directory, path, MAX_PATH_LEN);
+    browser->directory[MAX_PATH_LEN - 1] = 0;
+    dir_free_list(browser->files, browser->file_count);
+    dir_free_list(browser->directories, browser->dir_count);
+    browser->files = dir_list(path, 0, &browser->file_count);
+    browser->directories = dir_list(path, 1, &browser->dir_count);
+}
+
+static void
+file_browser_init(struct file_browser *browser, struct media *media)
+{
+    memset(browser, 0, sizeof(*browser));
+    browser->media = media;
+    {
+        /* load files and sub-directory list */
+        const char *home = getenv("HOME");
+#ifdef _WIN32
+        if (!home) home = getenv("USERPROFILE");
+#else
+        if (!home) home = getpwuid(getuid())->pw_dir;
+        {
+            size_t l;
+            strncpy(browser->home, home, MAX_PATH_LEN);
+            browser->home[MAX_PATH_LEN - 1] = 0;
+            l = strlen(browser->home);
+            strcpy(browser->home + l, "/");
+            strcpy(browser->directory, browser->home);
+        }
+#endif
+        {
+            size_t l;
+            strcpy(browser->desktop, browser->home);
+            l = strlen(browser->desktop);
+            strcpy(browser->desktop + l, "desktop/");
+        }
+        browser->files = dir_list(browser->directory, 0, &browser->file_count);
+        browser->directories = dir_list(browser->directory, 1, &browser->dir_count);
+    }
+}
+
+static void
+file_browser_free(struct file_browser *browser)
+{
+    if (browser->files)
+        dir_free_list(browser->files, browser->file_count);
+    if (browser->directories)
+        dir_free_list(browser->directories, browser->dir_count);
+    browser->files = NULL;
+    browser->directories = NULL;
+    memset(browser, 0, sizeof(*browser));
+}
+
+static int
+file_browser_run(struct file_browser *browser, struct nk_context *ctx)
+{
+    int ret = 0;
+    struct media *media = browser->media;
+    struct nk_rect total_space;
+
+    if (nk_begin(ctx, "File Browser", nk_rect(50, 50, 800, 600),
+        NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
+            NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
+    {
+        static float ratio[] = {0.25f, NK_UNDEFINED};
+        float spacing_x = ctx->style.window.spacing.x;
+
+        /* output path directory selector in the menubar */
+        ctx->style.window.spacing.x = 0;
+        nk_menubar_begin(ctx);
+        {
+            char *d = browser->directory;
+            char *begin = d + 1;
+            nk_layout_row_dynamic(ctx, 25, 6);
+            while (*d++) {
+                if (*d == '/') {
+                    *d = '\0';
+                    if (nk_button_label(ctx, begin)) {
+                        *d++ = '/'; *d = '\0';
+                        file_browser_reload_directory_content(browser, browser->directory);
+                        break;
+                    }
+                    *d = '/';
+                    begin = d + 1;
+                }
+            }
+        }
+        nk_menubar_end(ctx);
+        ctx->style.window.spacing.x = spacing_x;
+
+        /* window layout */
+        total_space = nk_window_get_content_region(ctx);
+        nk_layout_row(ctx, NK_DYNAMIC, total_space.h, 2, ratio);
+        nk_group_begin(ctx, "Special", NK_WINDOW_NO_SCROLLBAR);
+        {
+            struct nk_image home = media->icons.home;
+            struct nk_image desktop = media->icons.desktop;
+            struct nk_image computer = media->icons.computer;
+
+            nk_layout_row_dynamic(ctx, 40, 1);
+            if (nk_button_image_label(ctx, home, "home", NK_TEXT_CENTERED))
+                file_browser_reload_directory_content(browser, browser->home);
+            if (nk_button_image_label(ctx,desktop,"desktop",NK_TEXT_CENTERED))
+                file_browser_reload_directory_content(browser, browser->desktop);
+            if (nk_button_image_label(ctx,computer,"computer",NK_TEXT_CENTERED))
+                file_browser_reload_directory_content(browser, "/");
+            nk_group_end(ctx);
+        }
+
+        /* output directory content window */
+        nk_group_begin(ctx, "Content", 0);
+        {
+            int index = -1;
+            size_t i = 0, j = 0, k = 0;
+            size_t rows = 0, cols = 0;
+            size_t count = browser->dir_count + browser->file_count;
+
+            cols = 4;
+            rows = count / cols;
+            for (i = 0; i <= rows; i += 1) {
+                {size_t n = j + cols;
+                nk_layout_row_dynamic(ctx, 135, (int)cols);
+                for (; j < count && j < n; ++j) {
+                    /* draw one row of icons */
+                    if (j < browser->dir_count) {
+                        /* draw and execute directory buttons */
+                        if (nk_button_image(ctx,media->icons.directory))
+                            index = (int)j;
+                    } else {
+                        /* draw and execute files buttons */
+                        struct nk_image *icon;
+                        size_t fileIndex = ((size_t)j - browser->dir_count);
+                        icon = media_icon_for_file(media,browser->files[fileIndex]);
+                        if (nk_button_image(ctx, *icon)) {
+                            strncpy(browser->file, browser->directory, MAX_PATH_LEN);
+                            n = strlen(browser->file);
+                            strncpy(browser->file + n, browser->files[fileIndex], MAX_PATH_LEN - n);
+                            ret = 1;
+                        }
+                    }
+                }}
+                {size_t n = k + cols;
+                nk_layout_row_dynamic(ctx, 20, (int)cols);
+                for (; k < count && k < n; k++) {
+                    /* draw one row of labels */
+                    if (k < browser->dir_count) {
+                        nk_label(ctx, browser->directories[k], NK_TEXT_CENTERED);
+                    } else {
+                        size_t t = k-browser->dir_count;
+                        nk_label(ctx,browser->files[t],NK_TEXT_CENTERED);
+                    }
+                }}
+            }
+
+            if (index != -1) {
+                size_t n = strlen(browser->directory);
+                strncpy(browser->directory + n, browser->directories[index], MAX_PATH_LEN - n);
+                n = strlen(browser->directory);
+                if (n < MAX_PATH_LEN - 1) {
+                    browser->directory[n] = '/';
+                    browser->directory[n+1] = '\0';
+                }
+                file_browser_reload_directory_content(browser, browser->directory);
+            }
+            nk_group_end(ctx);
+        }
+    }
+    nk_end(ctx);
+    return ret;
+}
+

demo/d3d11/main.c

@@ -49,19 +49,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/d3d12/main.c

@@ -52,19 +52,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/d3d9/main.c

@@ -46,19 +46,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/gdi/main.c

@@ -41,19 +41,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/gdip/main.c

@@ -41,19 +41,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/glfw_opengl2/Makefile

@@ -2,7 +2,7 @@
 BIN = demo
 
 # Flags
-CFLAGS += -std=c89 -Wall -Wextra -pedantic -O2
+CFLAGS += -std=c99 -Wall -Wextra -pedantic -O2
 
 SRC = main.c
 OBJ = $(SRC:.c=.o)

demo/glfw_opengl2/main.c

@@ -24,6 +24,9 @@
 #include "../../nuklear.h"
 #include "nuklear_glfw_gl2.h"
 
+#define STB_IMAGE_IMPLEMENTATION
+#include "../../demo/common/filebrowser/stb_image.h"
+
 #define WINDOW_WIDTH 1200
 #define WINDOW_HEIGHT 800
 
@@ -34,12 +37,13 @@
  * ===============================================================*/
 /* This are some code examples to provide a small overview of what can be
  * done with this library. To try out an example uncomment the defines */
-/*#define INCLUDE_ALL */
+/* #define INCLUDE_ALL          */
-/*#define INCLUDE_STYLE */
+/* #define INCLUDE_STYLE        */
-/*#define INCLUDE_CALCULATOR */
+/* #define INCLUDE_CALCULATOR   */
-/*#define INCLUDE_CANVAS */
+#define INCLUDE_CANVAS
-#define INCLUDE_OVERVIEW
+/* #define INCLUDE_FILE_BROWSER */
-/*#define INCLUDE_NODE_EDITOR */
+/* #define INCLUDE_OVERVIEW     */
+/* #define INCLUDE_NODE_EDITOR  */
 
 #ifdef INCLUDE_ALL
   #define INCLUDE_STYLE
@@ -50,19 +54,22 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
+#endif
+#ifdef INCLUDE_FILE_BROWSER
+  #include "../../demo/common/file_browser.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================
@@ -78,8 +85,14 @@ int main(void)
     /* Platform */
     static GLFWwindow *win;
     int width = 0, height = 0;
+    
+    /* GUI */
     struct nk_context *ctx;
     struct nk_colorf bg;
+#ifdef INCLUDE_FILE_BROWSER
+    struct file_browser browser;
+    struct media media;
+#endif
 
     /* GLFW */
     glfwSetErrorCallback(error_callback);
@@ -115,6 +128,25 @@ int main(void)
     #endif
 
     bg.r = 0.10f, bg.g = 0.18f, bg.b = 0.24f, bg.a = 1.0f;
+    
+    #ifdef INCLUDE_FILE_BROWSER
+    /* icons */
+    glEnable(GL_TEXTURE_2D);
+    media.icons.home = icon_load("../../demo/common/filebrowser/icon/home.png");
+    media.icons.directory = icon_load("../../demo/common/filebrowser/icon/directory.png");
+    media.icons.computer = icon_load("../../demo/common/filebrowser/icon/computer.png");
+    media.icons.desktop = icon_load("../../demo/common/filebrowser/icon/desktop.png");
+    media.icons.default_file = icon_load("../../demo/common/filebrowser/icon/default.png");
+    media.icons.text_file = icon_load("../../demo/common/filebrowser/icon/text.png");
+    media.icons.music_file = icon_load("../../demo/common/filebrowser/icon/music.png");
+    media.icons.font_file =  icon_load("../../demo/common/filebrowser/icon/font.png");
+    media.icons.img_file = icon_load("../../demo/common/filebrowser/icon/img.png");
+    media.icons.movie_file = icon_load("../../demo/common/filebrowser/icon/movie.png");
+    media_init(&media);
+
+    file_browser_init(&browser, &media);
+    #endif
+
     while (!glfwWindowShouldClose(win))
     {
         /* Input */
@@ -163,6 +195,9 @@ int main(void)
         #ifdef INCLUDE_CANVAS
           canvas(ctx);
         #endif
+        #ifdef INCLUDE_FILE_BROWSER
+          file_browser_run(&browser, ctx);
+        #endif
         #ifdef INCLUDE_OVERVIEW
           overview(ctx);
         #endif
@@ -183,8 +218,23 @@ int main(void)
         nk_glfw3_render(NK_ANTI_ALIASING_ON);
         glfwSwapBuffers(win);
     }
+
+    #ifdef INCLUDE_FILE_BROWSER       
+    glDeleteTextures(1,(const GLuint*)&media.icons.home.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.directory.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.computer.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.desktop.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.default_file.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.text_file.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.music_file.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.font_file.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.img_file.handle.id);
+    glDeleteTextures(1,(const GLuint*)&media.icons.movie_file.handle.id);
+
+    file_browser_free(&browser);
+    #endif    
+    
     nk_glfw3_shutdown();
     glfwTerminate();
     return 0;
 }
-

demo/glfw_opengl3/main.c

@@ -54,19 +54,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/glfw_opengl4/main.c

@@ -54,19 +54,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/sdl2surface_rawfb/main.c

@@ -45,19 +45,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 static int translate_sdl_key(struct SDL_Keysym const *k)

demo/sdl_opengl2/main.c

@@ -50,19 +50,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/sdl_opengl3/main.c

@@ -54,19 +54,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/sdl_opengles2/main.c

@@ -55,19 +55,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/sdl_renderer/main.c

@@ -48,19 +48,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/sfml_opengl2/main.cpp

@@ -50,19 +50,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/sfml_opengl3/main.cpp

@@ -52,19 +52,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/wayland_rawfb/main.c

@@ -51,19 +51,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 

demo/x11/main.c

@@ -92,19 +92,19 @@ sleep_for(long t)
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/x11_opengl2/main.c

@@ -53,19 +53,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/x11_opengl3/main.c

@@ -51,19 +51,19 @@
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/x11_rawfb/main.c

@@ -126,19 +126,19 @@ sleep_for(long t)
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================

demo/x11_xft/main.c

@@ -92,19 +92,19 @@ sleep_for(long t)
 #endif
 
 #ifdef INCLUDE_STYLE
-  #include "../style.c"
+  #include "../../demo/common/style.c"
 #endif
 #ifdef INCLUDE_CALCULATOR
-  #include "../calculator.c"
+  #include "../../demo/common/calculator.c"
 #endif
 #ifdef INCLUDE_CANVAS
-  #include "../canvas.c"
+  #include "../../demo/common/canvas.c"
 #endif
 #ifdef INCLUDE_OVERVIEW
-  #include "../overview.c"
+  #include "../../demo/common/overview.c"
 #endif
 #ifdef INCLUDE_NODE_EDITOR
-  #include "../node_editor.c"
+  #include "../../demo/common/node_editor.c"
 #endif
 
 /* ===============================================================