[FileSystem Dock] Add symlink indicator and tooltip.

Author: bruvzg

doc/classes/TreeItem.xml

@@ -223,6 +223,13 @@
 				Returns the [Color] modulating the column's icon.
 			</description>
 		</method>
+		<method name="get_icon_overlay" qualifiers="const">
+			<return type="Texture2D" />
+			<param index="0" name="column" type="int" />
+			<description>
+				Returns the given column's icon overlay [Texture2D].
+			</description>
+		</method>
 		<method name="get_icon_region" qualifiers="const">
 			<return type="Rect2" />
 			<param index="0" name="column" type="int" />
@@ -662,6 +669,14 @@
 				Modulates the given column's icon with [param modulate].
 			</description>
 		</method>
+		<method name="set_icon_overlay">
+			<return type="void" />
+			<param index="0" name="column" type="int" />
+			<param index="1" name="texture" type="Texture2D" />
+			<description>
+				Sets the given cell's icon overlay [Texture2D]. The cell has to be in [constant CELL_MODE_ICON] mode, and icon has to be set. Overlay is drawn on top of icon, in the bottom left corner.
+			</description>
+		</method>
 		<method name="set_icon_region">
 			<return type="void" />
 			<param index="0" name="column" type="int" />

drivers/unix/dir_access_unix.cpp

@@ -397,12 +397,18 @@ Error DirAccessUnix::rename(String p_path, String p_new_path) {
 	}
 
 	p_path = fix_path(p_path);
+	if (p_path.ends_with("/")) {
+		p_path = p_path.left(-1);
+	}
 
 	if (p_new_path.is_relative_path()) {
 		p_new_path = get_current_dir().path_join(p_new_path);
 	}
 
 	p_new_path = fix_path(p_new_path);
+	if (p_new_path.ends_with("/")) {
+		p_new_path = p_new_path.left(-1);
+	}
 
 	return ::rename(p_path.utf8().get_data(), p_new_path.utf8().get_data()) == 0 ? OK : FAILED;
 }
@@ -413,6 +419,9 @@ Error DirAccessUnix::remove(String p_path) {
 	}
 
 	p_path = fix_path(p_path);
+	if (p_path.ends_with("/")) {
+		p_path = p_path.left(-1);
+	}
 
 	struct stat flags = {};
 	if ((stat(p_path.utf8().get_data(), &flags) != 0)) {
@@ -432,6 +441,9 @@ bool DirAccessUnix::is_link(String p_file) {
 	}
 
 	p_file = fix_path(p_file);
+	if (p_file.ends_with("/")) {
+		p_file = p_file.left(-1);
+	}
 
 	struct stat flags = {};
 	if ((lstat(p_file.utf8().get_data(), &flags) != 0)) {
@@ -447,6 +459,9 @@ String DirAccessUnix::read_link(String p_file) {
 	}
 
 	p_file = fix_path(p_file);
+	if (p_file.ends_with("/")) {
+		p_file = p_file.left(-1);
+	}
 
 	char buf[256];
 	memset(buf, 0, 256);

editor/filesystem_dock.cpp

@@ -216,6 +216,7 @@ bool FileSystemDock::_create_tree(TreeItem *p_parent, EditorFileSystemDirectory
 	// Set custom folder color (if applicable).
 	bool has_custom_color = assigned_folder_colors.has(lpath);
 	Color custom_color = has_custom_color ? folder_colors[assigned_folder_colors[lpath]] : Color();
+	Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
 
 	if (has_custom_color) {
 		subdirectory_item->set_icon_modulate(0, editor_is_dark_theme ? custom_color : custom_color * ITEM_COLOR_SCALE);
@@ -237,6 +238,10 @@ bool FileSystemDock::_create_tree(TreeItem *p_parent, EditorFileSystemDirectory
 	subdirectory_item->set_text(0, dname);
 	subdirectory_item->set_structured_text_bidi_override(0, TextServer::STRUCTURED_TEXT_FILE);
 	subdirectory_item->set_icon(0, get_editor_theme_icon(SNAME("Folder")));
+	if (da->is_link(lpath)) {
+		subdirectory_item->set_icon_overlay(0, get_editor_theme_icon(SNAME("LinkOverlay")));
+		subdirectory_item->set_tooltip_text(0, vformat(TTR("Link to: %s"), da->read_link(lpath)));
+	}
 	subdirectory_item->set_selectable(0, true);
 	subdirectory_item->set_metadata(0, lpath);
 	if (!p_select_in_favorites && (current_path == lpath || ((display_mode != DISPLAY_MODE_TREE_ONLY) && current_path.get_base_dir() == lpath))) {
@@ -309,6 +314,10 @@ bool FileSystemDock::_create_tree(TreeItem *p_parent, EditorFileSystemDirectory
 			file_item->set_text(0, fi.name);
 			file_item->set_structured_text_bidi_override(0, TextServer::STRUCTURED_TEXT_FILE);
 			file_item->set_icon(0, _get_tree_item_icon(!fi.import_broken, fi.type, fi.icon_path));
+			if (da->is_link(file_metadata)) {
+				file_item->set_icon_overlay(0, get_editor_theme_icon(SNAME("LinkOverlay")));
+				file_item->set_tooltip_text(0, vformat(TTR("Link to: %s"), da->read_link(file_metadata)));
+			}
 			file_item->set_icon_max_width(0, icon_size);
 			Color parent_bg_color = subdirectory_item->get_custom_bg_color(0);
 			if (has_custom_color) {

editor/icons/LinkOverlay.svg

@@ -62,8 +62,15 @@ void TreeItem::Cell::draw_icon(const RID &p_where, const Point2 &p_pos, const Si
 
 	if (icon_region == Rect2i()) {
 		icon->draw_rect_region(p_where, Rect2(p_pos, dsize), Rect2(Point2(), icon->get_size()), p_color);
+		if (icon_overlay.is_valid()) {
+			Vector2 offset = icon->get_size() - icon_overlay->get_size();
+			icon_overlay->draw_rect_region(p_where, Rect2(p_pos + offset, dsize), Rect2(Point2(), icon_overlay->get_size()), p_color);
+		}
 	} else {
 		icon->draw_rect_region(p_where, Rect2(p_pos, dsize), icon_region, p_color);
+		if (icon_overlay.is_valid()) {
+			icon_overlay->draw_rect_region(p_where, Rect2(p_pos, dsize), icon_region, p_color);
+		}
 	}
 }
 
@@ -477,6 +484,24 @@ Ref<Texture2D> TreeItem::get_icon(int p_column) const {
 	return cells[p_column].icon;
 }
 
+void TreeItem::set_icon_overlay(int p_column, const Ref<Texture2D> &p_icon_overlay) {
+	ERR_FAIL_INDEX(p_column, cells.size());
+
+	if (cells[p_column].icon_overlay == p_icon_overlay) {
+		return;
+	}
+
+	cells.write[p_column].icon_overlay = p_icon_overlay;
+	cells.write[p_column].cached_minimum_size_dirty = true;
+
+	_changed_notify(p_column);
+}
+
+Ref<Texture2D> TreeItem::get_icon_overlay(int p_column) const {
+	ERR_FAIL_INDEX_V(p_column, cells.size(), Ref<Texture2D>());
+	return cells[p_column].icon_overlay;
+}
+
 void TreeItem::set_icon_region(int p_column, const Rect2 &p_icon_region) {
 	ERR_FAIL_INDEX(p_column, cells.size());
 
@@ -1633,6 +1658,9 @@ void TreeItem::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_icon", "column", "texture"), &TreeItem::set_icon);
 	ClassDB::bind_method(D_METHOD("get_icon", "column"), &TreeItem::get_icon);
 
+	ClassDB::bind_method(D_METHOD("set_icon_overlay", "column", "texture"), &TreeItem::set_icon_overlay);
+	ClassDB::bind_method(D_METHOD("get_icon_overlay", "column"), &TreeItem::get_icon_overlay);
+
 	ClassDB::bind_method(D_METHOD("set_icon_region", "column", "region"), &TreeItem::set_icon_region);
 	ClassDB::bind_method(D_METHOD("get_icon_region", "column"), &TreeItem::get_icon_region);
 

scene/gui/tree.cpp

@@ -60,6 +60,7 @@ class TreeItem : public Object {
 		TreeCellMode mode = TreeItem::CELL_MODE_STRING;
 
 		Ref<Texture2D> icon;
+		Ref<Texture2D> icon_overlay;
 		Rect2i icon_region;
 		String text;
 		String xl_text;
@@ -257,6 +258,9 @@ class TreeItem : public Object {
 	void set_icon(int p_column, const Ref<Texture2D> &p_icon);
 	Ref<Texture2D> get_icon(int p_column) const;
 
+	void set_icon_overlay(int p_column, const Ref<Texture2D> &p_icon_overlay);
+	Ref<Texture2D> get_icon_overlay(int p_column) const;
+
 	void set_icon_region(int p_column, const Rect2 &p_icon_region);
 	Rect2 get_icon_region(int p_column) const;