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488#ifndef NK_CONSOLE_FILE_H__
#define NK_CONSOLE_FILE_H__
#ifndef NK_CONSOLE_FILE_PATH_MAX
#ifdef PATH_MAX
#define NK_CONSOLE_FILE_PATH_MAX PATH_MAX
#else
#define NK_CONSOLE_FILE_PATH_MAX 4096
#endif
#endif // NK_CONSOLE_FILE_PATH_MAX
/**
* Custom data for the file widget.
*/
typedef struct nk_console_file_data {
nk_console_button_data button; /** Inherited from Button */
char* file_path_buffer; /** The string buffer for the chosen file path. */
int file_path_buffer_size; /** The size of the buffer. */
char directory[NK_CONSOLE_FILE_PATH_MAX]; /** When selecting a file, this is the current directory. */
void* file_user_data; /** Custom user data for the file system. */
nk_bool select_directory; /** Flag indicating if we are selecting a directory. */
} nk_console_file_data;
#if defined(__cplusplus)
extern "C" {
#endif
/**
* Creates a file widget that allows the user to select a file.
*
* @param parent The parent widget.
* @param label The label for the file widget. For example: "Select a file".
* @param file_path_buffer The buffer to store the file path.
* @param file_path_buffer_size The size of the buffer.
*
* @return The new file widget.
*/
NK_API nk_console* nk_console_file(nk_console* parent, const char* label, char* file_path_buffer, int file_path_buffer_size);
/**
* Creates a directory widget that allows the user to select a directory.
*
* @param parent The parent widget.
* @param label The label for the file widget. For example: "Select a file".
* @param dir_buffer The buffer to store the file path.
* @param dir_buffer_size The size of the buffer.
*
* @return The new file widget.
*/
NK_API nk_console* nk_console_dir(nk_console* parent, const char* label, char* dir_buffer, int dir_buffer_size);
/**
* Render callback to display the file widget.
*/
NK_API struct nk_rect nk_console_file_render(nk_console* widget);
/**
* Sets any custom user data specifically for the file widget.
*
* This can be helpful for storing additional file system data for the file widget.
*
* @param file The file widget.
* @param user_data The custom user data.
*/
NK_API void nk_console_file_set_file_user_data(nk_console* file, void* user_data);
/**
* Gets the custom user data specifically for the file widget.
*
* @param file The file widget.
*
* @return The custom user data.
*/
NK_API void* nk_console_file_get_file_user_data(nk_console* file);
/**
* Add a individual file or directory to the given file widget as a child.
*
* This should be called from the file system callbacks. See `nuklear_console_file_system.h` for examples.
*
* @param parent The file widget.
* @param path The path to the file or directory.
* @param is_directory True if the path is a directory. False otherwise.
*
* @return The new button if it was successfully added, NULL otherwise.
*
* @see nk_console_file_destroy_tinydir()
* @see nk_console_file_add_files_raylib()
*/
NK_API nk_console* nk_console_file_add_entry(nk_console* parent, const char* path, nk_bool is_directory);
/**
* Refreshes the file widget to display the contents of the current directory.
*
* @param widget The file widget to refresh.
*
* @see nk_console_file_data::directory
*/
NK_API void nk_console_file_refresh(nk_console* widget, void* user_data);
#if defined(__cplusplus)
}
#endif
#endif // NK_CONSOLE_FILE_H__
#if defined(NK_CONSOLE_IMPLEMENTATION) && !defined(NK_CONSOLE_HEADER_ONLY)
#ifndef NK_CONSOLE_FILE_IMPLEMENTATION_ONCE
#define NK_CONSOLE_FILE_IMPLEMENTATION_ONCE
#include "nuklear_console_file_system.h"
#if defined(__cplusplus)
extern "C" {
#endif
/**
* Gets the base name of a file path.
*/
static const char* nk_console_file_basename(const char* path) {
if (path == NULL) {
return NULL;
}
// TODO: Ensure UTF-8 compatibility.
int len = nk_strlen(path);
for (int i = len - 1; i > 0; i--) {
if (path[i] == '\\' || path[i] == '/') {
path = path + i + 1;
break;
}
}
return path;
}
NK_API struct nk_rect nk_console_file_render(nk_console* console) {
if (console == NULL || console->data == NULL) {
return nk_rect(0, 0, 0, 0);
}
nk_console_file_data* data = (nk_console_file_data*)console->data;
nk_console_layout_widget(console);
// Display the label
if (console->label != NULL && console->label[0] != '\0') {
if (!nk_console_is_active_widget(console)) {
nk_widget_disable_begin(console->ctx);
}
if (console->label_length > 0) {
nk_text(console->ctx, console->label, console->label_length, NK_TEXT_LEFT);
}
else {
nk_label(console->ctx, console->label, NK_TEXT_LEFT);
}
if (!nk_console_is_active_widget(console)) {
nk_widget_disable_end(console->ctx);
}
}
// Display the mocked button
int swap_columns = console->columns;
const char* swap_label = console->label;
console->columns = 0;
if (data->file_path_buffer != NULL && data->file_path_buffer[0] != '\0') {
console->label = nk_console_file_basename(data->file_path_buffer);
}
else {
console->label = data->select_directory ? "[Select Directory]" : "[Select a File]";
}
struct nk_rect widget_bounds = nk_console_button_render(console);
console->columns = swap_columns;
console->label = swap_label;
return widget_bounds;
}
/**
* Gets the file widget from a child button.
*/
static nk_console* nk_console_file_button_get_file_widget(nk_console* button) {
if (button == NULL) {
return NULL;
}
if (button->type == NK_CONSOLE_FILE) {
return button;
}
while (button->parent != NULL) {
button = button->parent;
if (button->type == NK_CONSOLE_FILE) {
return button;
}
}
return NULL;
}
/**
* Free the individual file entry buttons. This clears the label.
*/
NK_API void nk_console_file_free_entry(nk_console* button, void* user_data) {
NK_UNUSED(user_data);
if (button == NULL) {
return;
}
if (button->label != NULL) {
nk_console_mfree(nk_handle_id(0), (void*)button->label);
button->label = NULL;
}
}
NK_API void nk_console_file_entry_onclick(nk_console* button, void* user_data) {
NK_UNUSED(user_data);
if (button == NULL || button->label == NULL) {
return;
}
nk_console* file = nk_console_file_button_get_file_widget(button);
if (file == NULL || file->data == NULL) {
return;
}
nk_console_file_data* data = (nk_console_file_data*)file->data;
int len = nk_strlen(data->directory);
// Append a slash if the directory is not empty.
if (len == 1 && data->directory[0] == '.') {
len = 0;
data->directory[0] = '\0';
}
else if (len > 0) {
// TODO: file: Make sure this is cross-platform.
#if defined(_WIN32) || defined(WIN32)
data->directory[len] = '\\';
#else
data->directory[len] = '/';
#endif
data->directory[len + 1] = '\0';
len++;
}
// Concatenate the button label to the directory.
// TODO: file: Resolve the path properly, so the paths don't recurse. For example: folder/../folder
// TODO: file: Add UTF-8 support.
NK_MEMCPY(data->directory + len, (void*)button->label, (nk_size)(nk_strlen(button->label) + 1));
enum nk_symbol_type symbol = nk_console_button_get_symbol(button);
switch (symbol) { // Directory
case NK_SYMBOL_TRIANGLE_LEFT: // Back
case NK_SYMBOL_TRIANGLE_RIGHT: // Folder
nk_console_set_active_parent(file);
nk_console_add_event(file, NK_CONSOLE_EVENT_POST_RENDER_ONCE, &nk_console_file_refresh);
break;
default: // File
{
// Copy the string to the file buffer.
// TODO: Ensure UTF-8 compatibility.
int desired_length = nk_strlen(data->directory);
if (desired_length >= data->file_path_buffer_size) {
NK_ASSERT(0); // File path is too long
nk_console_show_message(file, "Error: File path is too long.");
}
else {
NK_MEMCPY(data->file_path_buffer, data->directory, (nk_size)desired_length);
data->file_path_buffer[desired_length] = '\0';
// Trigger the onchange event and exit.
nk_console_trigger_event(file, NK_CONSOLE_EVENT_CHANGED);
}
// Now that we selected a file, we can exit.
nk_console_set_active_parent(file->parent);
} break;
}
}
NK_API nk_console* nk_console_file_add_entry(nk_console* parent, const char* path, nk_bool is_directory) {
if (parent == NULL || path == NULL || path[0] == '\0' || parent->data == NULL) {
return NULL;
}
// Are we only selecting directories?
nk_console_file_data* data = (nk_console_file_data*)nk_console_file_button_get_file_widget(parent)->data;
if (is_directory == nk_false && data->select_directory == nk_true) {
return NULL;
}
int len = nk_strlen(path);
// Ignore the current directory.
if (len == 1 && path[0] == '.') {
return NULL;
}
else if (len == 2 && path[0] == '.' && path[1] == '.') {
// Ignore the parent directory.
return NULL;
}
// Add the button.
nk_console* button = nk_console_button(parent, NULL);
// Copy the path for the label, and register an event to destroy it.
// TODO: file: Ensure UTF-8 compatibility.
button->label = (const char*)NK_CONSOLE_MALLOC(nk_handle_id(0), NULL, (nk_size)(sizeof(char)) * (nk_size)(len + 1));
nk_console_add_event(button, NK_CONSOLE_EVENT_DESTROYED, &nk_console_file_free_entry);
char* label = (char*)button->label;
// Use the base name as the label.
const char* basename = nk_console_file_basename(path);
nk_size basename_len = (nk_size)nk_strlen(basename);
NK_MEMCPY(label, basename, basename_len);
label[basename_len] = '\0';
// Symbol
if (is_directory == nk_true) {
nk_console_button_set_symbol(button, NK_SYMBOL_TRIANGLE_RIGHT);
}
// Event
nk_console_add_event(button, NK_CONSOLE_EVENT_CLICKED, &nk_console_file_entry_onclick);
return button;
}
/**
* Gets the length of the directory string of the given file path.
*/
static int nk_console_file_get_directory_len(const char* file_path) {
if (file_path == NULL) {
return 0;
}
int len = nk_strlen(file_path);
for (int i = len - 1; i > 0; i--) {
if (file_path[i] == '\\' || file_path[i] == '/') {
return i;
}
}
return 0;
}
/**
* Fills the files array with the files in the current directory.
*/
NK_API void nk_console_file_refresh(nk_console* widget, void* user_data) {
NK_UNUSED(user_data);
widget = nk_console_file_button_get_file_widget(widget);
if (widget == NULL || widget->data == NULL) {
return;
}
nk_console_file_data* data = (nk_console_file_data*)widget->data;
// Clear out all the current entries.
nk_console_free_children(widget);
// Add the back/cancel button
nk_console* cancelButton = nk_console_button_onclick(widget, "Cancel", &nk_console_button_back);
nk_console_button_set_symbol(cancelButton, NK_SYMBOL_X);
// Show the Active directory.
if (!data->select_directory) {
// Active directory label
nk_console* activeLabel = nk_console_label(widget, data->directory);
activeLabel->alignment = NK_TEXT_CENTERED;
}
else {
// Add the select directory button.
nk_console* button = nk_console_file_add_entry(widget, data->directory, nk_true);
nk_console_button_set_symbol(button, NK_SYMBOL_CIRCLE_SOLID);
nk_console_set_tooltip(button, "Use this directory");
}
// Add the parent directory button
nk_console* parent_directory_button = nk_console_button_onclick(widget, "..", &nk_console_file_entry_onclick);
nk_console_button_set_symbol(parent_directory_button, NK_SYMBOL_TRIANGLE_LEFT);
nk_console_set_tooltip(parent_directory_button, "Navigate to the parent directory");
nk_console_set_active_widget(parent_directory_button);
#ifdef NK_CONSOLE_FILE_ADD_FILES
// Iterate through the files in the directory, and add them as entries.
if (NK_CONSOLE_FILE_ADD_FILES(widget, data->directory) == nk_false) {
nk_console_label(widget, "No files found.")->alignment = NK_TEXT_CENTERED;
}
#else
// NK_CONSOLE_FILE_ADD_FILES is undefined, so back out.
nk_console_show_message(widget, "Error: File system not available.");
// Go back to the parent widget, and disable the widget.
if (widget->parent != NULL) {
widget->disabled = nk_true;
nk_console_set_active_parent(widget->parent);
}
#endif
}
/**
* Button callback for the main file button.
*/
static void nk_console_file_main_click(nk_console* button, void* user_data) {
NK_UNUSED(user_data);
if (button == NULL || button->data == NULL) {
return;
}
nk_console* file = nk_console_file_button_get_file_widget(button);
if (file == NULL || file->data == NULL) {
return;
}
nk_console_file_data* data = (nk_console_file_data*)file->data;
int directory_len = nk_console_file_get_directory_len(data->file_path_buffer);
NK_MEMCPY(data->directory, data->file_path_buffer, (nk_size)directory_len);
data->directory[directory_len] = '\0';
if (nk_strlen(data->directory) == 0) {
// TODO: file: Make get current working directory function.
data->directory[0] = '.';
data->directory[1] = '\0';
}
// Set the active parent to the file widget, and refresh it after rendering everything else.
nk_console_set_active_parent(file);
nk_console_add_event(file, NK_CONSOLE_EVENT_POST_RENDER_ONCE, &nk_console_file_refresh);
}
NK_API void nk_console_file_set_file_user_data(nk_console* file, void* user_data) {
file = nk_console_file_button_get_file_widget(file);
if (file == NULL || file->data == NULL) {
return;
}
nk_console_file_data* data = (nk_console_file_data*)file->data;
data->file_user_data = user_data;
}
NK_API void* nk_console_file_get_file_user_data(nk_console* file) {
file = nk_console_file_button_get_file_widget(file);
if (file == NULL || file->data == NULL) {
return NULL;
}
nk_console_file_data* data = (nk_console_file_data*)file->data;
return data->file_user_data;
}
NK_API nk_console* nk_console_file(nk_console* parent, const char* label, char* file_path_buffer, int file_path_buffer_size) {
if (parent == NULL || file_path_buffer == NULL || file_path_buffer_size <= 0) {
return NULL;
}
// Create the widget data.
nk_console_file_data* data = (nk_console_file_data*)NK_CONSOLE_MALLOC(nk_handle_id(0), NULL, sizeof(nk_console_file_data));
nk_zero(data, sizeof(nk_console_file_data));
data->file_path_buffer = file_path_buffer;
data->file_path_buffer_size = file_path_buffer_size;
nk_console* widget = nk_console_label(parent, label);
widget->type = NK_CONSOLE_FILE;
widget->columns = label == NULL ? 1 : 2;
widget->render = nk_console_file_render;
widget->selectable = nk_true;
widget->data = data;
nk_console_add_event(widget, NK_CONSOLE_EVENT_CLICKED, &nk_console_file_main_click);
return widget;
}
NK_API nk_console* nk_console_dir(nk_console* parent, const char* label, char* dir_buffer, int dir_buffer_size) {
nk_console* widget = nk_console_file(parent, label, dir_buffer, dir_buffer_size);
if (widget == NULL) {
return NULL;
}
nk_console_file_data* data = (nk_console_file_data*)widget->data;
data->select_directory = nk_true;
return widget;
}
#if defined(__cplusplus)
}
#endif
#endif // NK_CONSOLE_FILE_IMPLEMENTATION_ONCE
#endif // NK_CONSOLE_IMPLEMENTATION