Moved File Filter When Filesystem Dock is on the Bottom Panel

When the Filesystem Dock is on the bottom panel vertical space is more
valuable than horizontal space. Moving the file filter to be horizontal
with the current path LineEdit makes the dock more space efficient when
on the bottom panel. When docked on the side, the file filter is
unchanged.

Author: DallasHuff

editor/docks/filesystem_dock.cpp

@@ -489,7 +489,11 @@ void FileSystemDock::_update_display_mode(bool p_force) {
 				button_toggle_display_mode->set_button_icon(get_editor_theme_icon(SNAME("Panels1")));
 				tree->show();
 				tree->set_v_size_flags(SIZE_EXPAND_FILL);
-				toolbar2_hbc->show();
+				if (horizontal) {
+					toolbar2_hbc->hide();
+				} else {
+					toolbar2_hbc->show();
+				}
 
 				_update_tree(get_uncollapsed_paths());
 				file_list_vb->hide();
@@ -4019,12 +4023,14 @@ MenuButton *FileSystemDock::_create_file_menu_button() {
 }
 
 void FileSystemDock::update_layout(EditorDock::DockLayout p_layout) {
-	bool horizontal = p_layout == EditorDock::DOCK_LAYOUT_HORIZONTAL;
+	horizontal = p_layout == EditorDock::DOCK_LAYOUT_HORIZONTAL;
 	if (button_dock_placement->is_visible() == horizontal) {
 		return;
 	}
 
 	if (horizontal) {
+		path_hb->reparent(toolbar_hbc, false);
+		toolbar_hbc->move_child(path_hb, 2);
 		set_meta("_dock_display_mode", get_display_mode());
 		set_meta("_dock_file_display_mode", get_file_list_display_mode());
 
@@ -4035,6 +4041,8 @@ void FileSystemDock::update_layout(EditorDock::DockLayout p_layout) {
 		set_file_list_display_mode(new_file_display_mode);
 		set_custom_minimum_size(Size2(0, 200) * EDSCALE);
 	} else {
+		path_hb->reparent(file_list_vb);
+		file_list_vb->move_child(path_hb, 0);
 		set_meta("_bottom_display_mode", get_display_mode());
 		set_meta("_bottom_file_display_mode", get_file_list_display_mode());
 
@@ -4180,7 +4188,7 @@ FileSystemDock::FileSystemDock() {
 	VBoxContainer *top_vbc = memnew(VBoxContainer);
 	main_vb->add_child(top_vbc);
 
-	HBoxContainer *toolbar_hbc = memnew(HBoxContainer);
+	toolbar_hbc = memnew(HBoxContainer);
 	top_vbc->add_child(toolbar_hbc);
 
 	HBoxContainer *nav_hbc = memnew(HBoxContainer);
@@ -4276,6 +4284,7 @@ FileSystemDock::FileSystemDock() {
 	split_box->add_child(file_list_vb);
 
 	path_hb = memnew(HBoxContainer);
+	path_hb->set_h_size_flags(SIZE_EXPAND_FILL);
 	file_list_vb->add_child(path_hb);
 
 	file_list_search_box = memnew(LineEdit);

editor/docks/filesystem_dock.h

@@ -165,6 +165,7 @@ class FileSystemDock : public EditorDock {
 	Button *button_hist_prev = nullptr;
 	LineEdit *current_path_line_edit = nullptr;
 
+	HBoxContainer *toolbar_hbc = nullptr;
 	HBoxContainer *toolbar2_hbc = nullptr;
 	LineEdit *tree_search_box = nullptr;
 	MenuButton *tree_button_sort = nullptr;
@@ -182,6 +183,8 @@ class FileSystemDock : public EditorDock {
 	DisplayMode display_mode;
 	DisplayMode old_display_mode;
 
+	bool horizontal = false;
+
 	PopupMenu *file_list_popup = nullptr;
 	PopupMenu *tree_popup = nullptr;