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Further improve file_browser.c

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-Adds visible boundary to file icon box;
-Adds a 'cancel' button that closes the file dialog;
-Adds a 'save' button that should be used for the save() routine defined by the user;
This commit is contained in:
crazyBaboon 2022-03-26 18:28:49 +00:00 committed by GitHub
parent ceee8839ab
commit a1df0c4f57
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 107 additions and 90 deletions
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195
demo/common/file_browser.c
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@ -1,3 +1,5 @@
nk_bool file_browser_is_open;
struct icons { struct icons {
struct nk_image desktop; struct nk_image desktop;
struct nk_image home; struct nk_image home;
@ -325,6 +327,7 @@ file_browser_reload_directory_content(struct file_browser *browser, const char *
static void static void
file_browser_init(struct file_browser *browser, struct media *media) file_browser_init(struct file_browser *browser, struct media *media)
{ {
file_browser_is_open = nk_true;
memset(browser, 0, sizeof(*browser)); memset(browser, 0, sizeof(*browser));
browser->media = media; browser->media = media;
{ {
@ -373,113 +376,127 @@ file_browser_run(struct file_browser *browser, struct nk_context *ctx)
struct media *media = browser->media; struct media *media = browser->media;
struct nk_rect total_space; struct nk_rect total_space;
if (nk_begin(ctx, "File Browser", nk_rect(50, 50, 600, 400), if (file_browser_is_open)
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}; if (nk_begin(ctx, "File Browser", nk_rect(50, 50, 600, 400),
float spacing_x = ctx->style.window.spacing.x; NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|NK_WINDOW_NO_SCROLLBAR|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
/* output path directory selector in the menubar */
ctx->style.window.spacing.x = 0;
nk_menubar_begin(ctx);
{ {
char *d = browser->directory; static float ratio[] = {0.25f, NK_UNDEFINED};
char *begin = d + 1; float spacing_x = ctx->style.window.spacing.x;
nk_layout_row_dynamic(ctx, 25, 6);
while (*d++) { /* output path directory selector in the menubar */
if (*d == '/') { ctx->style.window.spacing.x = 0;
*d = '\0'; nk_menubar_begin(ctx);
if (nk_button_label(ctx, begin)) { {
*d++ = '/'; *d = '\0'; char *d = browser->directory;
file_browser_reload_directory_content(browser, browser->directory); char *begin = d + 1;
break; 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;
} }
*d = '/';
begin = d + 1;
} }
} }
} nk_menubar_end(ctx);
nk_menubar_end(ctx); ctx->style.window.spacing.x = spacing_x;
ctx->style.window.spacing.x = spacing_x;
/* window layout */ /* window layout */
total_space = nk_window_get_content_region(ctx); total_space = nk_window_get_content_region(ctx);
nk_layout_row(ctx, NK_DYNAMIC, total_space.h, 2, ratio); nk_layout_row(ctx, NK_DYNAMIC, total_space.h - 40, 2, ratio);
nk_group_begin(ctx, "Special", NK_WINDOW_NO_SCROLLBAR); nk_group_begin(ctx, "Special", NK_WINDOW_NO_SCROLLBAR);
{ {
struct nk_image home = media->icons.home; struct nk_image home = media->icons.home;
struct nk_image desktop = media->icons.desktop; struct nk_image desktop = media->icons.desktop;
struct nk_image computer = media->icons.computer; struct nk_image computer = media->icons.computer;
nk_layout_row_dynamic(ctx, 40, 1); nk_layout_row_dynamic(ctx, 40, 1);
if (nk_button_image_label(ctx, home, "home", NK_TEXT_CENTERED)) if (nk_button_image_label(ctx, home, "home", NK_TEXT_CENTERED))
file_browser_reload_directory_content(browser, browser->home); file_browser_reload_directory_content(browser, browser->home);
if (nk_button_image_label(ctx,desktop,"desktop",NK_TEXT_CENTERED)) if (nk_button_image_label(ctx,desktop,"desktop",NK_TEXT_CENTERED))
file_browser_reload_directory_content(browser, browser->desktop); file_browser_reload_directory_content(browser, browser->desktop);
if (nk_button_image_label(ctx,computer,"computer",NK_TEXT_CENTERED)) if (nk_button_image_label(ctx,computer,"computer",NK_TEXT_CENTERED))
file_browser_reload_directory_content(browser, "/"); file_browser_reload_directory_content(browser, "/");
nk_group_end(ctx); nk_group_end(ctx);
} }
/* output directory content window */ /* output directory content window */
nk_group_begin(ctx, "Content", 0); nk_group_begin(ctx, "Content", NK_WINDOW_BORDER);
{ {
int index = -1; int index = -1;
size_t i = 0, j = 0; size_t i = 0, j = 0;
size_t rows = 0, cols = 0; size_t rows = 0, cols = 0;
size_t count = browser->dir_count + browser->file_count; size_t count = browser->dir_count + browser->file_count;
/* File icons layout */ /* File icons layout */
cols = 2; cols = 2;
rows = count / cols; rows = count / cols;
static float ratio2[] = {0.08f, NK_UNDEFINED}; static float ratio2[] = {0.08f, NK_UNDEFINED};
nk_layout_row(ctx, NK_DYNAMIC, 30, 2, ratio2); nk_layout_row(ctx, NK_DYNAMIC, 30, 2, ratio2);
for (i = 0; i <= rows; i += 1) { for (i = 0; i <= rows; i += 1) {
size_t n = j + cols; size_t n = j + cols;
for (; j < count && j < n; ++j) { for (; j < count && j < n; ++j) {
/* draw one column of icons */ /* draw one column of icons */
if (j < browser->dir_count) { if (j < browser->dir_count) {
/* draw and execute directory buttons */ /* draw and execute directory buttons */
if (nk_button_image(ctx,media->icons.directory)) if (nk_button_image(ctx,media->icons.directory))
index = (int)j; index = (int)j;
nk_label(ctx, browser->directories[j], NK_TEXT_LEFT); nk_label(ctx, browser->directories[j], NK_TEXT_LEFT);
} else { } else {
/* draw and execute files buttons */ /* draw and execute files buttons */
struct nk_image *icon; struct nk_image *icon;
size_t fileIndex = ((size_t)j - browser->dir_count); size_t fileIndex = ((size_t)j - browser->dir_count);
icon = media_icon_for_file(media,browser->files[fileIndex]); icon = media_icon_for_file(media,browser->files[fileIndex]);
if (nk_button_image(ctx, *icon)) { if (nk_button_image(ctx, *icon)) {
strncpy(browser->file, browser->directory, MAX_PATH_LEN); strncpy(browser->file, browser->directory, MAX_PATH_LEN);
n = strlen(browser->file); n = strlen(browser->file);
strncpy(browser->file + n, browser->files[fileIndex], MAX_PATH_LEN - n); strncpy(browser->file + n, browser->files[fileIndex], MAX_PATH_LEN - n);
ret = 1; ret = 1;
}
}
/* draw one column of labels */
if (j >= browser->dir_count) {
size_t t = j - browser->dir_count;
nk_label(ctx,browser->files[t],NK_TEXT_LEFT);
} }
} }
/* draw one column of labels */
if (j >= browser->dir_count) {
size_t t = j - browser->dir_count;
nk_label(ctx,browser->files[t],NK_TEXT_LEFT);
}
} }
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);
} }
if (index != -1) { nk_layout_row_dynamic(ctx, 30, 5);
size_t n = strlen(browser->directory); nk_label(ctx,"",NK_TEXT_LEFT);
strncpy(browser->directory + n, browser->directories[index], MAX_PATH_LEN - n); nk_label(ctx,"",NK_TEXT_LEFT);
n = strlen(browser->directory); nk_label(ctx,"",NK_TEXT_LEFT);
if (n < MAX_PATH_LEN - 1) { if(nk_button_label(ctx, "Cancel"))
browser->directory[n] = '/'; {
browser->directory[n+1] = '\0'; fprintf(stdout, "File dialog has been closed!\n");
} file_browser_is_open = nk_false;
file_browser_reload_directory_content(browser, browser->directory);
} }
nk_group_end(ctx); if(nk_button_label(ctx, "Save"))
fprintf(stdout, "Insert routine to open/save the file!\n");
} }
nk_end(ctx);
} }
nk_end(ctx);
return ret; return ret;
} }