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Expose FileDialog callbacks for getting custom icons

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This commit is contained in:
kobewi 2025-06-30 19:07:12 +02:00
parent d705613db3
commit f88b51995b
6 changed files with 138 additions and 13 deletions
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74
scene/gui/file_dialog.cpp
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@ -577,6 +577,24 @@ bool FileDialog::_is_open_should_be_disabled() {
return false;
}
void FileDialog::_thumbnail_callback(const Ref<Texture2D> &p_texture, const String &p_path) {
if (display_mode == DISPLAY_LIST || p_texture.is_null()) {
return;
}
if (!p_path.begins_with(full_dir)) {
return;
}
const String file_name = p_path.get_file();
for (int i = 0; i < file_list->get_item_count(); i++) {
if (file_list->get_item_text(i) == file_name) {
file_list->set_item_icon(i, p_texture);
break;
}
}
}
void FileDialog::_go_up() {
_change_dir("..");
_push_history();
@ -778,7 +796,7 @@ void FileDialog::update_file_list() {
file_list->set_max_columns(1);
file_list->set_max_text_lines(1);
file_list->set_fixed_column_width(0);
file_list->set_fixed_icon_size(Size2());
file_list->set_fixed_icon_size(theme_cache.file->get_size());
}
dir_access->list_dir_begin();
@ -948,13 +966,44 @@ void FileDialog::update_file_list() {
for (const FileInfo &info : filtered_files) {
file_list->add_item(info.name);
if (get_icon_func) {
Ref<Texture2D> icon = get_icon_func(base_dir.path_join(info.name));
const String path = base_dir.path_join(info.name);
if (display_mode == DISPLAY_LIST) {
Ref<Texture2D> icon;
if (get_icon_callback.is_valid()) {
const Variant &v = path;
const Variant *argptrs[1] = { &v };
Variant vicon;
Callable::CallError ce;
get_icon_callback.callp(argptrs, 1, vicon, ce);
if (unlikely(ce.error != Callable::CallError::CALL_OK)) {
ERR_PRINT(vformat("Error calling FileDialog's icon callback: %s.", Variant::get_callable_error_text(get_icon_callback, argptrs, 1, ce)));
}
icon = vicon;
}
if (icon.is_null()) {
icon = theme_cache.file;
}
file_list->set_item_icon(-1, icon);
} else { // DISPLAY_THUMBNAILS
Ref<Texture2D> icon;
if (get_thumbnail_callback.is_valid()) {
const Variant &v = path;
const Variant *argptrs[1] = { &v };
Variant vicon;
Callable::CallError ce;
get_thumbnail_callback.callp(argptrs, 1, vicon, ce);
if (unlikely(ce.error != Callable::CallError::CALL_OK)) {
ERR_PRINT(vformat("Error calling FileDialog's thumbnail callback: %s.", Variant::get_callable_error_text(get_thumbnail_callback, argptrs, 1, ce)));
}
icon = vicon;
}
if (icon.is_null()) {
icon = theme_cache.file;
}
file_list->set_item_icon(-1, icon);
} else if (display_mode == DISPLAY_THUMBNAILS) {
file_list->set_item_icon(-1, theme_cache.file_thumbnail);
} else {
file_list->set_item_icon(-1, theme_cache.file);
}
file_list->set_item_icon_modulate(-1, theme_cache.file_icon_color);
@ -1983,6 +2032,8 @@ void FileDialog::_bind_methods() {
ClassDB::bind_static_method("FileDialog", D_METHOD("get_favorite_list"), &FileDialog::get_favorite_list);
ClassDB::bind_static_method("FileDialog", D_METHOD("set_recent_list", "recents"), &FileDialog::set_recent_list);
ClassDB::bind_static_method("FileDialog", D_METHOD("get_recent_list"), &FileDialog::get_recent_list);
ClassDB::bind_static_method("FileDialog", D_METHOD("set_get_icon_callback", "callback"), &FileDialog::set_get_icon_callback);
ClassDB::bind_static_method("FileDialog", D_METHOD("set_get_thumbnail_callback", "callback"), &FileDialog::set_get_thumbnail_callback);
ClassDB::bind_method(D_METHOD("invalidate"), &FileDialog::invalidate);
@ -2118,6 +2169,14 @@ void FileDialog::set_default_show_hidden_files(bool p_show) {
default_show_hidden_files = p_show;
}
void FileDialog::set_get_icon_callback(const Callable &p_callback) {
get_icon_callback = p_callback;
}
void FileDialog::set_get_thumbnail_callback(const Callable &p_callback) {
get_thumbnail_callback = p_callback;
}
void FileDialog::set_use_native_dialog(bool p_native) {
use_native_dialog = p_native;
@ -2143,6 +2202,7 @@ FileDialog::FileDialog() {
set_hide_on_ok(false);
set_size(Size2(640, 360));
set_default_ok_text(ETR("Save")); // Default mode text.
thumbnail_callback = callable_mp(this, &FileDialog::_thumbnail_callback);
for (int i = 0; i < CUSTOMIZATION_MAX; i++) {
customization_flags[i] = true;