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godot/editor/scene_tree_editor.cpp
reduz 90056460ad Implement Particle Trails 
-Enable the trails and set the length in seconds
-Provide a mesh with a skeleton and a skin
-Or, alternatively use one of the built-in TubeTrailMesh/RibbonTrailMesh
-Works deterministically
-Fixed particle collisions (were broken)
-Not working in 2D yet (that will happen next)
2021-04-30 17:38:02 -03:00

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/*************************************************************************/
/* scene_tree_editor.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "scene_tree_editor.h"
#include "core/object/message_queue.h"
#include "core/string/print_string.h"
#include "editor/editor_node.h"
#include "editor/editor_scale.h"
#include "editor/node_dock.h"
#include "editor/plugins/animation_player_editor_plugin.h"
#include "editor/plugins/canvas_item_editor_plugin.h"
#include "scene/gui/label.h"
#include "scene/main/window.h"
#include "scene/resources/packed_scene.h"
Node *SceneTreeEditor::get_scene_node() {
ERR_FAIL_COND_V(!is_inside_tree(), nullptr);
return get_tree()->get_edited_scene_root();
}
void SceneTreeEditor::_cell_button_pressed(Object *p_item, int p_column, int p_id) {
if (connect_to_script_mode) {
return; //don't do anything in this mode
}
TreeItem *item = Object::cast_to<TreeItem>(p_item);
ERR_FAIL_COND(!item);
NodePath np = item->get_metadata(0);
Node *n = get_node(np);
ERR_FAIL_COND(!n);
if (p_id == BUTTON_SUBSCENE) {
if (n == get_scene_node()) {
if (n && n->get_scene_inherited_state().is_valid()) {
emit_signal("open", n->get_scene_inherited_state()->get_path());
}
} else {
emit_signal("open", n->get_filename());
}
} else if (p_id == BUTTON_SCRIPT) {
Ref<Script> script_typed = n->get_script();
if (!script_typed.is_null()) {
emit_signal("open_script", script_typed);
}
} else if (p_id == BUTTON_VISIBILITY) {
undo_redo->create_action(TTR("Toggle Visible"));
_toggle_visible(n);
List<Node *> selection = editor_selection->get_selected_node_list();
if (selection.size() > 1 && selection.find(n) != nullptr) {
for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
Node *nv = E->get();
ERR_FAIL_COND(!nv);
if (nv == n) {
continue;
}
_toggle_visible(nv);
}
}
undo_redo->commit_action();
} else if (p_id == BUTTON_LOCK) {
undo_redo->create_action(TTR("Unlock Node"));
if (n->is_class("CanvasItem") || n->is_class("Node3D")) {
undo_redo->add_do_method(n, "remove_meta", "_edit_lock_");
undo_redo->add_undo_method(n, "set_meta", "_edit_lock_", true);
undo_redo->add_do_method(this, "_update_tree", Variant());
undo_redo->add_undo_method(this, "_update_tree", Variant());
undo_redo->add_do_method(this, "emit_signal", "node_changed");
undo_redo->add_undo_method(this, "emit_signal", "node_changed");
}
undo_redo->commit_action();
} else if (p_id == BUTTON_PIN) {
if (n->is_class("AnimationPlayer")) {
AnimationPlayerEditor::singleton->unpin();
_update_tree();
}
} else if (p_id == BUTTON_GROUP) {
undo_redo->create_action(TTR("Button Group"));
if (n->is_class("CanvasItem") || n->is_class("Node3D")) {
undo_redo->add_do_method(n, "remove_meta", "_edit_group_");
undo_redo->add_undo_method(n, "set_meta", "_edit_group_", true);
undo_redo->add_do_method(this, "_update_tree", Variant());
undo_redo->add_undo_method(this, "_update_tree", Variant());
undo_redo->add_do_method(this, "emit_signal", "node_changed");
undo_redo->add_undo_method(this, "emit_signal", "node_changed");
}
undo_redo->commit_action();
} else if (p_id == BUTTON_WARNING) {
String config_err = n->get_configuration_warnings_as_string();
if (config_err == String()) {
return;
}
config_err = config_err.word_wrap(80);
warning->set_text(config_err);
warning->popup_centered();
} else if (p_id == BUTTON_SIGNALS) {
editor_selection->clear();
editor_selection->add_node(n);
set_selected(n);
NodeDock::singleton->get_parent()->call("set_current_tab", NodeDock::singleton->get_index());
NodeDock::singleton->show_connections();
} else if (p_id == BUTTON_GROUPS) {
editor_selection->clear();
editor_selection->add_node(n);
set_selected(n);
NodeDock::singleton->get_parent()->call("set_current_tab", NodeDock::singleton->get_index());
NodeDock::singleton->show_groups();
}
}
void SceneTreeEditor::_toggle_visible(Node *p_node) {
if (p_node->has_method("is_visible") && p_node->has_method("set_visible")) {
bool v = bool(p_node->call("is_visible"));
undo_redo->add_do_method(p_node, "set_visible", !v);
undo_redo->add_undo_method(p_node, "set_visible", v);
}
}
bool SceneTreeEditor::_add_nodes(Node *p_node, TreeItem *p_parent, bool p_scroll_to_selected) {
if (!p_node) {
return false;
}
// only owned nodes are editable, since nodes can create their own (manually owned) child nodes,
// which the editor needs not to know about.
bool part_of_subscene = false;
if (!display_foreign && p_node->get_owner() != get_scene_node() && p_node != get_scene_node()) {
if ((show_enabled_subscene || can_open_instance) && p_node->get_owner() && (get_scene_node()->is_editable_instance(p_node->get_owner()))) {
part_of_subscene = true;
//allow
} else {
return false;
}
} else {
part_of_subscene = p_node != get_scene_node() && get_scene_node()->get_scene_inherited_state().is_valid() && get_scene_node()->get_scene_inherited_state()->find_node_by_path(get_scene_node()->get_path_to(p_node)) >= 0;
}
TreeItem *item = tree->create_item(p_parent);
item->set_text(0, p_node->get_name());
if (can_rename && !part_of_subscene) {
item->set_editable(0, true);
}
item->set_selectable(0, true);
if (can_rename) {
bool collapsed = p_node->is_displayed_folded();
if (collapsed) {
item->set_collapsed(true);
}
}
Ref<Texture2D> icon = EditorNode::get_singleton()->get_object_icon(p_node, "Node");
item->set_icon(0, icon);
item->set_metadata(0, p_node->get_path());
if (connect_to_script_mode) {
Color accent = get_theme_color("accent_color", "Editor");
Ref<Script> script = p_node->get_script();
if (!script.is_null() && EditorNode::get_singleton()->get_object_custom_type_base(p_node) != script) {
//has script
item->add_button(0, get_theme_icon("Script", "EditorIcons"), BUTTON_SCRIPT);
} else {
//has no script (or script is a custom type)
item->set_custom_color(0, get_theme_color("disabled_font_color", "Editor"));
item->set_selectable(0, false);
if (!script.is_null()) { // make sure to mark the script if a custom type
item->add_button(0, get_theme_icon("Script", "EditorIcons"), BUTTON_SCRIPT);
item->set_button_disabled(0, item->get_button_count(0) - 1, true);
}
accent.a *= 0.7;
}
if (marked.has(p_node)) {
String node_name = p_node->get_name();
if (connecting_signal) {
node_name += " " + TTR("(Connecting From)");
}
item->set_text(0, node_name);
item->set_custom_color(0, accent);
}
} else if (part_of_subscene) {
if (valid_types.size() == 0) {
item->set_custom_color(0, get_theme_color("disabled_font_color", "Editor"));
}
} else if (marked.has(p_node)) {
String node_name = p_node->get_name();
if (connecting_signal) {
node_name += " " + TTR("(Connecting From)");
}
item->set_text(0, node_name);
item->set_selectable(0, marked_selectable);
item->set_custom_color(0, get_theme_color("accent_color", "Editor"));
} else if (!p_node->can_process()) {
item->set_custom_color(0, get_theme_color("disabled_font_color", "Editor"));
} else if (!marked_selectable && !marked_children_selectable) {
Node *node = p_node;
while (node) {
if (marked.has(node)) {
item->set_selectable(0, false);
item->set_custom_color(0, get_theme_color("error_color", "Editor"));
break;
}
node = node->get_parent();
}
}
if (can_rename) { //should be can edit..
String warning = p_node->get_configuration_warnings_as_string();
if (!warning.is_empty()) {
item->add_button(0, get_theme_icon("NodeWarning", "EditorIcons"), BUTTON_WARNING, false, TTR("Node configuration warning:") + "\n" + warning);
}
int num_connections = p_node->get_persistent_signal_connection_count();
int num_groups = p_node->get_persistent_group_count();
String msg_temp;
if (num_connections >= 1) {
Array arr;
arr.push_back(num_connections);
msg_temp += TTRN("Node has one connection.", "Node has {num} connections.", num_connections).format(arr, "{num}");
msg_temp += " ";
}
if (num_groups >= 1) {
Array arr;
arr.push_back(num_groups);
msg_temp += TTRN("Node is in one group.", "Node is in {num} groups.", num_groups).format(arr, "{num}");
}
if (num_connections >= 1 || num_groups >= 1) {
msg_temp += "\n" + TTR("Click to show signals dock.");
}
Ref<Texture2D> icon_temp;
SceneTreeEditorButton signal_temp = BUTTON_SIGNALS;
if (num_connections >= 1 && num_groups >= 1) {
icon_temp = get_theme_icon("SignalsAndGroups", "EditorIcons");
} else if (num_connections >= 1) {
icon_temp = get_theme_icon("Signals", "EditorIcons");
} else if (num_groups >= 1) {
icon_temp = get_theme_icon("Groups", "EditorIcons");
signal_temp = BUTTON_GROUPS;
}
if (num_connections >= 1 || num_groups >= 1) {
item->add_button(0, icon_temp, signal_temp, false, msg_temp);
}
}
if (p_node == get_scene_node() && p_node->get_scene_inherited_state().is_valid()) {
item->add_button(0, get_theme_icon("InstanceOptions", "EditorIcons"), BUTTON_SUBSCENE, false, TTR("Open in Editor"));
String tooltip = TTR("Inherits:") + " " + p_node->get_scene_inherited_state()->get_path() + "\n" + TTR("Type:") + " " + p_node->get_class();
if (p_node->get_editor_description() != String()) {
tooltip += "\n\n" + p_node->get_editor_description();
}
item->set_tooltip(0, tooltip);
} else if (p_node != get_scene_node() && p_node->get_filename() != "" && can_open_instance) {
item->add_button(0, get_theme_icon("InstanceOptions", "EditorIcons"), BUTTON_SUBSCENE, false, TTR("Open in Editor"));
String tooltip = TTR("Instance:") + " " + p_node->get_filename() + "\n" + TTR("Type:") + " " + p_node->get_class();
if (p_node->get_editor_description() != String()) {
tooltip += "\n\n" + p_node->get_editor_description();
}
item->set_tooltip(0, tooltip);
} else {
StringName type = EditorNode::get_singleton()->get_object_custom_type_name(p_node);
if (type == StringName()) {
type = p_node->get_class();
}
String tooltip = TTR("Type:") + " " + type;
if (p_node->get_editor_description() != String()) {
tooltip += "\n\n" + p_node->get_editor_description();
}
item->set_tooltip(0, tooltip);
}
if (can_open_instance && undo_redo) { //Show buttons only when necessary(SceneTreeDock) to avoid crashes
if (!p_node->is_connected("script_changed", callable_mp(this, &SceneTreeEditor::_node_script_changed))) {
p_node->connect("script_changed", callable_mp(this, &SceneTreeEditor::_node_script_changed), varray(p_node));
}
Ref<Script> script = p_node->get_script();
if (!script.is_null()) {
item->add_button(0, get_theme_icon("Script", "EditorIcons"), BUTTON_SCRIPT, false, TTR("Open Script:") + " " + script->get_path());
if (EditorNode::get_singleton()->get_object_custom_type_base(p_node) == script) {
item->set_button_color(0, item->get_button_count(0) - 1, Color(1, 1, 1, 0.5));
}
}
if (p_node->is_class("CanvasItem")) {
bool is_locked = p_node->has_meta("_edit_lock_"); //_edit_group_
if (is_locked) {
item->add_button(0, get_theme_icon("Lock", "EditorIcons"), BUTTON_LOCK, false, TTR("Node is locked.\nClick to unlock it."));
}
bool is_grouped = p_node->has_meta("_edit_group_");
if (is_grouped) {
item->add_button(0, get_theme_icon("Group", "EditorIcons"), BUTTON_GROUP, false, TTR("Children are not selectable.\nClick to make selectable."));
}
bool v = p_node->call("is_visible");
if (v) {
item->add_button(0, get_theme_icon("GuiVisibilityVisible", "EditorIcons"), BUTTON_VISIBILITY, false, TTR("Toggle Visibility"));
} else {
item->add_button(0, get_theme_icon("GuiVisibilityHidden", "EditorIcons"), BUTTON_VISIBILITY, false, TTR("Toggle Visibility"));
}
if (!p_node->is_connected("visibility_changed", callable_mp(this, &SceneTreeEditor::_node_visibility_changed))) {
p_node->connect("visibility_changed", callable_mp(this, &SceneTreeEditor::_node_visibility_changed), varray(p_node));
}
_update_visibility_color(p_node, item);
} else if (p_node->is_class("Node3D")) {
bool is_locked = p_node->has_meta("_edit_lock_");
if (is_locked) {
item->add_button(0, get_theme_icon("Lock", "EditorIcons"), BUTTON_LOCK, false, TTR("Node is locked.\nClick to unlock it."));
}
bool is_grouped = p_node->has_meta("_edit_group_");
if (is_grouped) {
item->add_button(0, get_theme_icon("Group", "EditorIcons"), BUTTON_GROUP, false, TTR("Children are not selectable.\nClick to make selectable."));
}
bool v = p_node->call("is_visible");
if (v) {
item->add_button(0, get_theme_icon("GuiVisibilityVisible", "EditorIcons"), BUTTON_VISIBILITY, false, TTR("Toggle Visibility"));
} else {
item->add_button(0, get_theme_icon("GuiVisibilityHidden", "EditorIcons"), BUTTON_VISIBILITY, false, TTR("Toggle Visibility"));
}
if (!p_node->is_connected("visibility_changed", callable_mp(this, &SceneTreeEditor::_node_visibility_changed))) {
p_node->connect("visibility_changed", callable_mp(this, &SceneTreeEditor::_node_visibility_changed), varray(p_node));
}
_update_visibility_color(p_node, item);
} else if (p_node->is_class("AnimationPlayer")) {
bool is_pinned = AnimationPlayerEditor::singleton->get_player() == p_node && AnimationPlayerEditor::singleton->is_pinned();
if (is_pinned) {
item->add_button(0, get_theme_icon("Pin", "EditorIcons"), BUTTON_PIN, false, TTR("AnimationPlayer is pinned.\nClick to unpin."));
}
}
}
bool scroll = false;
if (editor_selection) {
if (editor_selection->is_selected(p_node)) {
item->select(0);
scroll = p_scroll_to_selected;
}
}
if (selected == p_node) {
if (!editor_selection) {
item->select(0);
scroll = p_scroll_to_selected;
}
item->set_as_cursor(0);
}
bool keep = (filter.is_subsequence_ofi(String(p_node->get_name())));
for (int i = 0; i < p_node->get_child_count(); i++) {
bool child_keep = _add_nodes(p_node->get_child(i), item, p_scroll_to_selected);
keep = keep || child_keep;
}
if (valid_types.size()) {
bool valid = false;
for (int i = 0; i < valid_types.size(); i++) {
if (p_node->is_class(valid_types[i])) {
valid = true;
break;
}
}
if (!valid) {
//item->set_selectable(0,marked_selectable);
item->set_custom_color(0, get_theme_color("disabled_font_color", "Editor"));
item->set_selectable(0, false);
}
}
if (!keep) {
if (editor_selection) {
Node *n = get_node(item->get_metadata(0));
if (n) {
editor_selection->remove_node(n);
}
}
memdelete(item);
return false;
} else {
if (scroll) {
tree->scroll_to_item(item);
}
return true;
}
}
void SceneTreeEditor::_node_visibility_changed(Node *p_node) {
if (!p_node || (p_node != get_scene_node() && !p_node->get_owner())) {
return;
}
TreeItem *item = _find(tree->get_root(), p_node->get_path());
if (!item) {
return;
}
int idx = item->get_button_by_id(0, BUTTON_VISIBILITY);
ERR_FAIL_COND(idx == -1);
bool visible = false;
if (p_node->is_class("CanvasItem")) {
visible = p_node->call("is_visible");
CanvasItemEditor::get_singleton()->get_viewport_control()->update();
} else if (p_node->is_class("Node3D")) {
visible = p_node->call("is_visible");
}
if (visible) {
item->set_button(0, idx, get_theme_icon("GuiVisibilityVisible", "EditorIcons"));
} else {
item->set_button(0, idx, get_theme_icon("GuiVisibilityHidden", "EditorIcons"));
}
_update_visibility_color(p_node, item);
}
void SceneTreeEditor::_update_visibility_color(Node *p_node, TreeItem *p_item) {
if (p_node->is_class("CanvasItem") || p_node->is_class("Node3D")) {
Color color(1, 1, 1, 1);
bool visible_on_screen = p_node->call("is_visible_in_tree");
if (!visible_on_screen) {
color.a = 0.6;
}
int idx = p_item->get_button_by_id(0, BUTTON_VISIBILITY);
p_item->set_button_color(0, idx, color);
}
}
void SceneTreeEditor::_node_script_changed(Node *p_node) {
if (tree_dirty) {
return;
}
MessageQueue::get_singleton()->push_call(this, "_update_tree");
tree_dirty = true;
}
void SceneTreeEditor::_node_removed(Node *p_node) {
if (EditorNode::get_singleton()->is_exiting()) {
return; //speed up exit
}
if (p_node->is_connected("script_changed", callable_mp(this, &SceneTreeEditor::_node_script_changed))) {
p_node->disconnect("script_changed", callable_mp(this, &SceneTreeEditor::_node_script_changed));
}
if (p_node->is_class("Node3D") || p_node->is_class("CanvasItem")) {
if (p_node->is_connected("visibility_changed", callable_mp(this, &SceneTreeEditor::_node_visibility_changed))) {
p_node->disconnect("visibility_changed", callable_mp(this, &SceneTreeEditor::_node_visibility_changed));
}
}
if (p_node == selected) {
selected = nullptr;
emit_signal("node_selected");
}
}
void SceneTreeEditor::_node_renamed(Node *p_node) {
emit_signal("node_renamed");
if (!tree_dirty) {
MessageQueue::get_singleton()->push_call(this, "_update_tree");
tree_dirty = true;
}
}
void SceneTreeEditor::_update_tree(bool p_scroll_to_selected) {
if (!is_inside_tree()) {
tree_dirty = false;
return;
}
updating_tree = true;
tree->clear();
if (get_scene_node()) {
_add_nodes(get_scene_node(), nullptr, p_scroll_to_selected);
last_hash = hash_djb2_one_64(0);
_compute_hash(get_scene_node(), last_hash);
}
updating_tree = false;
tree_dirty = false;
}
void SceneTreeEditor::_compute_hash(Node *p_node, uint64_t &hash) {
hash = hash_djb2_one_64(p_node->get_instance_id(), hash);
if (p_node->get_parent()) {
hash = hash_djb2_one_64(p_node->get_parent()->get_instance_id(), hash); //so a reparent still produces a different hash
}
for (int i = 0; i < p_node->get_child_count(); i++) {
_compute_hash(p_node->get_child(i), hash);
}
}
void SceneTreeEditor::_test_update_tree() {
pending_test_update = false;
if (!is_inside_tree()) {
return;
}
if (tree_dirty) {
return; // don't even bother
}
uint64_t hash = hash_djb2_one_64(0);
if (get_scene_node()) {
_compute_hash(get_scene_node(), hash);
}
//test hash
if (hash == last_hash) {
return; // did not change
}
MessageQueue::get_singleton()->push_call(this, "_update_tree");
tree_dirty = true;
}
void SceneTreeEditor::_tree_process_mode_changed() {
MessageQueue::get_singleton()->push_call(this, "_update_tree");
tree_dirty = true;
}
void SceneTreeEditor::_tree_changed() {
if (EditorNode::get_singleton()->is_exiting()) {
return; //speed up exit
}
if (pending_test_update) {
return;
}
if (tree_dirty) {
return;
}
MessageQueue::get_singleton()->push_call(this, "_test_update_tree");
pending_test_update = true;
}
void SceneTreeEditor::_selected_changed() {
TreeItem *s = tree->get_selected();
ERR_FAIL_COND(!s);
NodePath np = s->get_metadata(0);
Node *n = get_node(np);
if (n == selected) {
return;
}
selected = get_node(np);
blocked++;
emit_signal("node_selected");
blocked--;
}
void SceneTreeEditor::_deselect_items() {
// Clear currently selected items in scene tree dock.
if (editor_selection) {
editor_selection->clear();
emit_signal("node_changed");
}
}
void SceneTreeEditor::_cell_multi_selected(Object *p_object, int p_cell, bool p_selected) {
TreeItem *item = Object::cast_to<TreeItem>(p_object);
ERR_FAIL_COND(!item);
NodePath np = item->get_metadata(0);
Node *n = get_node(np);
if (!n) {
return;
}
if (!editor_selection) {
return;
}
if (p_selected) {
editor_selection->add_node(n);
} else {
editor_selection->remove_node(n);
}
emit_signal("node_changed");
}
void SceneTreeEditor::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
get_tree()->connect("tree_changed", callable_mp(this, &SceneTreeEditor::_tree_changed));
get_tree()->connect("tree_process_mode_changed", callable_mp(this, &SceneTreeEditor::_tree_process_mode_changed));
get_tree()->connect("node_removed", callable_mp(this, &SceneTreeEditor::_node_removed));
get_tree()->connect("node_renamed", callable_mp(this, &SceneTreeEditor::_node_renamed));
get_tree()->connect("node_configuration_warning_changed", callable_mp(this, &SceneTreeEditor::_warning_changed), varray(), CONNECT_DEFERRED);
tree->connect("item_collapsed", callable_mp(this, &SceneTreeEditor::_cell_collapsed));
_update_tree();
} break;
case NOTIFICATION_EXIT_TREE: {
get_tree()->disconnect("tree_changed", callable_mp(this, &SceneTreeEditor::_tree_changed));
get_tree()->disconnect("tree_process_mode_changed", callable_mp(this, &SceneTreeEditor::_tree_process_mode_changed));
get_tree()->disconnect("node_removed", callable_mp(this, &SceneTreeEditor::_node_removed));
get_tree()->disconnect("node_renamed", callable_mp(this, &SceneTreeEditor::_node_renamed));
tree->disconnect("item_collapsed", callable_mp(this, &SceneTreeEditor::_cell_collapsed));
get_tree()->disconnect("node_configuration_warning_changed", callable_mp(this, &SceneTreeEditor::_warning_changed));
} break;
case NOTIFICATION_THEME_CHANGED: {
_update_tree();
} break;
}
}
TreeItem *SceneTreeEditor::_find(TreeItem *p_node, const NodePath &p_path) {
if (!p_node) {
return nullptr;
}
NodePath np = p_node->get_metadata(0);
if (np == p_path) {
return p_node;
}
TreeItem *children = p_node->get_children();
while (children) {
TreeItem *n = _find(children, p_path);
if (n) {
return n;
}
children = children->get_next();
}
return nullptr;
}
void SceneTreeEditor::set_selected(Node *p_node, bool p_emit_selected) {
ERR_FAIL_COND(blocked > 0);
if (pending_test_update) {
_test_update_tree();
}
if (tree_dirty) {
_update_tree();
}
if (selected == p_node) {
return;
}
TreeItem *item = p_node ? _find(tree->get_root(), p_node->get_path()) : nullptr;
if (item) {
// make visible when it's collapsed
TreeItem *node = item->get_parent();
while (node && node != tree->get_root()) {
node->set_collapsed(false);
node = node->get_parent();
}
item->select(0);
item->set_as_cursor(0);
selected = p_node;
tree->ensure_cursor_is_visible();
} else {
if (!p_node) {
selected = nullptr;
}
_update_tree();
selected = p_node;
}
if (p_emit_selected) {
emit_signal("node_selected");
}
}
void SceneTreeEditor::_rename_node(ObjectID p_node, const String &p_name) {
Object *o = ObjectDB::get_instance(p_node);
ERR_FAIL_COND(!o);
Node *n = Object::cast_to<Node>(o);
ERR_FAIL_COND(!n);
TreeItem *item = _find(tree->get_root(), n->get_path());
ERR_FAIL_COND(!item);
n->set_name(p_name);
item->set_metadata(0, n->get_path());
item->set_text(0, p_name);
}
void SceneTreeEditor::_renamed() {
TreeItem *which = tree->get_edited();
ERR_FAIL_COND(!which);
NodePath np = which->get_metadata(0);
Node *n = get_node(np);
ERR_FAIL_COND(!n);
// Empty node names are not allowed, so resets it to previous text and show warning
if (which->get_text(0).strip_edges().is_empty()) {
which->set_text(0, n->get_name());
EditorNode::get_singleton()->show_warning(TTR("No name provided."));
return;
}
String raw_new_name = which->get_text(0);
String new_name = raw_new_name.validate_node_name();
if (new_name != raw_new_name) {
error->set_text(TTR("Invalid node name, the following characters are not allowed:") + "\n" + String::invalid_node_name_characters);
error->popup_centered();
if (new_name.is_empty()) {
which->set_text(0, n->get_name());
return;
}
which->set_text(0, new_name);
}
if (new_name == n->get_name()) {
return;
}
// Trim leading/trailing whitespace to prevent node names from containing accidental whitespace, which would make it more difficult to get the node via `get_node()`.
new_name = new_name.strip_edges();
if (!undo_redo) {
n->set_name(new_name);
which->set_metadata(0, n->get_path());
emit_signal("node_renamed");
} else {
undo_redo->create_action(TTR("Rename Node"));
emit_signal("node_prerename", n, new_name);
undo_redo->add_do_method(this, "_rename_node", n->get_instance_id(), new_name);
undo_redo->add_undo_method(this, "_rename_node", n->get_instance_id(), n->get_name());
undo_redo->commit_action();
}
}
Node *SceneTreeEditor::get_selected() {
return selected;
}
void SceneTreeEditor::set_marked(const Set<Node *> &p_marked, bool p_selectable, bool p_children_selectable) {
if (tree_dirty) {
_update_tree();
}
marked = p_marked;
marked_selectable = p_selectable;
marked_children_selectable = p_children_selectable;
_update_tree();
}
void SceneTreeEditor::set_marked(Node *p_marked, bool p_selectable, bool p_children_selectable) {
Set<Node *> s;
if (p_marked) {
s.insert(p_marked);
}
set_marked(s, p_selectable, p_children_selectable);
}
void SceneTreeEditor::set_filter(const String &p_filter) {
filter = p_filter;
_update_tree(true);
}
String SceneTreeEditor::get_filter() const {
return filter;
}
void SceneTreeEditor::set_display_foreign_nodes(bool p_display) {
display_foreign = p_display;
_update_tree();
}
void SceneTreeEditor::set_valid_types(const Vector<StringName> &p_valid) {
valid_types = p_valid;
}
void SceneTreeEditor::set_editor_selection(EditorSelection *p_selection) {
editor_selection = p_selection;
tree->set_select_mode(Tree::SELECT_MULTI);
tree->set_cursor_can_exit_tree(false);
editor_selection->connect("selection_changed", callable_mp(this, &SceneTreeEditor::_selection_changed));
}
void SceneTreeEditor::_update_selection(TreeItem *item) {
ERR_FAIL_COND(!item);
NodePath np = item->get_metadata(0);
if (!has_node(np)) {
return;
}
Node *n = get_node(np);
if (!n) {
return;
}
if (editor_selection->is_selected(n)) {
item->select(0);
} else {
item->deselect(0);
}
TreeItem *c = item->get_children();
while (c) {
_update_selection(c);
c = c->get_next();
}
}
void SceneTreeEditor::_selection_changed() {
if (!editor_selection) {
return;
}
TreeItem *root = tree->get_root();
if (!root) {
return;
}
_update_selection(root);
}
void SceneTreeEditor::_cell_collapsed(Object *p_obj) {
if (updating_tree) {
return;
}
if (!can_rename) {
return;
}
TreeItem *ti = Object::cast_to<TreeItem>(p_obj);
if (!ti) {
return;
}
bool collapsed = ti->is_collapsed();
NodePath np = ti->get_metadata(0);
Node *n = get_node(np);
ERR_FAIL_COND(!n);
n->set_display_folded(collapsed);
}
Variant SceneTreeEditor::get_drag_data_fw(const Point2 &p_point, Control *p_from) {
if (!can_rename) {
return Variant(); //not editable tree
}
if (tree->get_button_id_at_position(p_point) != -1) {
return Variant(); //dragging from button
}
Vector<Node *> selected;
Vector<Ref<Texture2D>> icons;
TreeItem *next = tree->get_next_selected(nullptr);
while (next) {
NodePath np = next->get_metadata(0);
Node *n = get_node(np);
if (n) {
// Only allow selection if not part of an instanced scene.
if (!n->get_owner() || n->get_owner() == get_scene_node() || n->get_owner()->get_filename() == String()) {
selected.push_back(n);
icons.push_back(next->get_icon(0));
}
}
next = tree->get_next_selected(next);
}
if (selected.is_empty()) {
return Variant();
}
VBoxContainer *vb = memnew(VBoxContainer);
Array objs;
int list_max = 10;
float opacity_step = 1.0f / list_max;
float opacity_item = 1.0f;
for (int i = 0; i < selected.size(); i++) {
if (i < list_max) {
HBoxContainer *hb = memnew(HBoxContainer);
TextureRect *tf = memnew(TextureRect);
tf->set_texture(icons[i]);
tf->set_stretch_mode(TextureRect::STRETCH_KEEP_CENTERED);
hb->add_child(tf);
Label *label = memnew(Label(selected[i]->get_name()));
hb->add_child(label);
vb->add_child(hb);
hb->set_modulate(Color(1, 1, 1, opacity_item));
opacity_item -= opacity_step;
}
NodePath p = selected[i]->get_path();
objs.push_back(p);
}
set_drag_preview(vb);
Dictionary drag_data;
drag_data["type"] = "nodes";
drag_data["nodes"] = objs;
tree->set_drop_mode_flags(Tree::DROP_MODE_INBETWEEN | Tree::DROP_MODE_ON_ITEM);
emit_signal("nodes_dragged");
return drag_data;
}
bool SceneTreeEditor::_is_script_type(const StringName &p_type) const {
return (script_types->find(p_type));
}
bool SceneTreeEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
if (!can_rename) {
return false; //not editable tree
}
Dictionary d = p_data;
if (!d.has("type")) {
return false;
}
TreeItem *item = tree->get_item_at_position(p_point);
if (!item) {
return false;
}
int section = tree->get_drop_section_at_position(p_point);
if (section < -1 || (section == -1 && !item->get_parent())) {
return false;
}
if (String(d["type"]) == "files") {
Vector<String> files = d["files"];
if (files.size() == 0) {
return false; //weird
}
if (_is_script_type(EditorFileSystem::get_singleton()->get_file_type(files[0]))) {
tree->set_drop_mode_flags(Tree::DROP_MODE_ON_ITEM);
return true;
}
for (int i = 0; i < files.size(); i++) {
String file = files[i];
String ftype = EditorFileSystem::get_singleton()->get_file_type(file);
if (ftype != "PackedScene") {
return false;
}
}
tree->set_drop_mode_flags(Tree::DROP_MODE_INBETWEEN | Tree::DROP_MODE_ON_ITEM); //so it works..
return true;
}
if (String(d["type"]) == "script_list_element") {
ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(d["script_list_element"]);
if (se) {
String sp = se->get_edited_resource()->get_path();
if (_is_script_type(EditorFileSystem::get_singleton()->get_file_type(sp))) {
tree->set_drop_mode_flags(Tree::DROP_MODE_ON_ITEM);
return true;
}
}
}
return String(d["type"]) == "nodes" && filter == String();
}
void SceneTreeEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
if (!can_drop_data_fw(p_point, p_data, p_from)) {
return;
}
TreeItem *item = tree->get_item_at_position(p_point);
if (!item) {
return;
}
int section = tree->get_drop_section_at_position(p_point);
if (section < -1) {
return;
}
NodePath np = item->get_metadata(0);
Node *n = get_node(np);
if (!n) {
return;
}
Dictionary d = p_data;
if (String(d["type"]) == "nodes") {
Array nodes = d["nodes"];
emit_signal("nodes_rearranged", nodes, np, section);
}
if (String(d["type"]) == "files") {
Vector<String> files = d["files"];
String ftype = EditorFileSystem::get_singleton()->get_file_type(files[0]);
if (_is_script_type(ftype)) {
emit_signal("script_dropped", files[0], np);
} else {
emit_signal("files_dropped", files, np, section);
}
}
if (String(d["type"]) == "script_list_element") {
ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(d["script_list_element"]);
if (se) {
String sp = se->get_edited_resource()->get_path();
if (_is_script_type(EditorFileSystem::get_singleton()->get_file_type(sp))) {
emit_signal("script_dropped", sp, np);
}
}
}
}
void SceneTreeEditor::_rmb_select(const Vector2 &p_pos) {
emit_signal("rmb_pressed", tree->get_screen_transform().xform(p_pos));
}
void SceneTreeEditor::update_warning() {
_warning_changed(nullptr);
}
void SceneTreeEditor::_warning_changed(Node *p_for_node) {
//should use a timer
update_timer->start();
}
void SceneTreeEditor::set_connect_to_script_mode(bool p_enable) {
connect_to_script_mode = p_enable;
update_tree();
}
void SceneTreeEditor::set_connecting_signal(bool p_enable) {
connecting_signal = p_enable;
update_tree();
}
void SceneTreeEditor::_bind_methods() {
ClassDB::bind_method(D_METHOD("_update_tree", "scroll_to_selected"), &SceneTreeEditor::_update_tree, DEFVAL(false)); // Still used by some connect_compat.
ClassDB::bind_method("_rename_node", &SceneTreeEditor::_rename_node);
ClassDB::bind_method("_test_update_tree", &SceneTreeEditor::_test_update_tree);
ClassDB::bind_method(D_METHOD("get_drag_data_fw"), &SceneTreeEditor::get_drag_data_fw);
ClassDB::bind_method(D_METHOD("can_drop_data_fw"), &SceneTreeEditor::can_drop_data_fw);
ClassDB::bind_method(D_METHOD("drop_data_fw"), &SceneTreeEditor::drop_data_fw);
ClassDB::bind_method(D_METHOD("update_tree"), &SceneTreeEditor::update_tree);
ADD_SIGNAL(MethodInfo("node_selected"));
ADD_SIGNAL(MethodInfo("node_renamed"));
ADD_SIGNAL(MethodInfo("node_prerename"));
ADD_SIGNAL(MethodInfo("node_changed"));
ADD_SIGNAL(MethodInfo("nodes_dragged"));
ADD_SIGNAL(MethodInfo("nodes_rearranged", PropertyInfo(Variant::ARRAY, "paths"), PropertyInfo(Variant::NODE_PATH, "to_path"), PropertyInfo(Variant::INT, "type")));
ADD_SIGNAL(MethodInfo("files_dropped", PropertyInfo(Variant::PACKED_STRING_ARRAY, "files"), PropertyInfo(Variant::NODE_PATH, "to_path"), PropertyInfo(Variant::INT, "type")));
ADD_SIGNAL(MethodInfo("script_dropped", PropertyInfo(Variant::STRING, "file"), PropertyInfo(Variant::NODE_PATH, "to_path")));
ADD_SIGNAL(MethodInfo("rmb_pressed", PropertyInfo(Variant::VECTOR2, "position")));
ADD_SIGNAL(MethodInfo("open"));
ADD_SIGNAL(MethodInfo("open_script"));
}
SceneTreeEditor::SceneTreeEditor(bool p_label, bool p_can_rename, bool p_can_open_instance) {
connect_to_script_mode = false;
connecting_signal = false;
undo_redo = nullptr;
tree_dirty = true;
selected = nullptr;
marked_selectable = false;
marked_children_selectable = false;
can_rename = p_can_rename;
can_open_instance = p_can_open_instance;
display_foreign = false;
editor_selection = nullptr;
if (p_label) {
Label *label = memnew(Label);
label->set_position(Point2(10, 0));
label->set_text(TTR("Scene Tree (Nodes):"));
add_child(label);
}
tree = memnew(Tree);
tree->set_anchor(SIDE_RIGHT, ANCHOR_END);
tree->set_anchor(SIDE_BOTTOM, ANCHOR_END);
tree->set_begin(Point2(0, p_label ? 18 : 0));
tree->set_end(Point2(0, 0));
tree->set_allow_reselect(true);
tree->add_theme_constant_override("button_margin", 0);
add_child(tree);
tree->set_drag_forwarding(this);
if (p_can_rename) {
tree->set_allow_rmb_select(true);
tree->connect("item_rmb_selected", callable_mp(this, &SceneTreeEditor::_rmb_select));
tree->connect("empty_tree_rmb_selected", callable_mp(this, &SceneTreeEditor::_rmb_select));
}
tree->connect("cell_selected", callable_mp(this, &SceneTreeEditor::_selected_changed));
tree->connect("item_edited", callable_mp(this, &SceneTreeEditor::_renamed), varray(), CONNECT_DEFERRED);
tree->connect("multi_selected", callable_mp(this, &SceneTreeEditor::_cell_multi_selected));
tree->connect("button_pressed", callable_mp(this, &SceneTreeEditor::_cell_button_pressed));
tree->connect("nothing_selected", callable_mp(this, &SceneTreeEditor::_deselect_items));
//tree->connect("item_edited", this,"_renamed",Vector<Variant>(),true);
error = memnew(AcceptDialog);
add_child(error);
warning = memnew(AcceptDialog);
add_child(warning);
warning->set_title(TTR("Node Configuration Warning!"));
show_enabled_subscene = false;
last_hash = 0;
pending_test_update = false;
updating_tree = false;
blocked = 0;
update_timer = memnew(Timer);
update_timer->connect("timeout", callable_mp(this, &SceneTreeEditor::_update_tree), varray(false));
update_timer->set_one_shot(true);
update_timer->set_wait_time(0.5);
add_child(update_timer);
script_types = memnew(List<StringName>);
ClassDB::get_inheriters_from_class("Script", script_types);
}
SceneTreeEditor::~SceneTreeEditor() {
memdelete(script_types);
}
/******** DIALOG *********/
void SceneTreeDialog::popup_scenetree_dialog() {
popup_centered_clamped(Size2(350, 700) * EDSCALE);
}
void SceneTreeDialog::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_VISIBILITY_CHANGED: {
if (is_visible()) {
tree->update_tree();
}
} break;
case NOTIFICATION_ENTER_TREE: {
connect("confirmed", callable_mp(this, &SceneTreeDialog::_select));
filter->set_right_icon(tree->get_theme_icon("Search", "EditorIcons"));
filter->set_clear_button_enabled(true);
} break;
case NOTIFICATION_EXIT_TREE: {
disconnect("confirmed", callable_mp(this, &SceneTreeDialog::_select));
} break;
}
}
void SceneTreeDialog::_cancel() {
hide();
}
void SceneTreeDialog::_select() {
if (tree->get_selected()) {
emit_signal("selected", tree->get_selected()->get_path());
hide();
}
}
void SceneTreeDialog::_filter_changed(const String &p_filter) {
tree->set_filter(p_filter);
}
void SceneTreeDialog::_bind_methods() {
ClassDB::bind_method("_cancel", &SceneTreeDialog::_cancel);
ADD_SIGNAL(MethodInfo("selected", PropertyInfo(Variant::NODE_PATH, "path")));
}
SceneTreeDialog::SceneTreeDialog() {
set_title(TTR("Select a Node"));
VBoxContainer *vbc = memnew(VBoxContainer);
add_child(vbc);
filter = memnew(LineEdit);
filter->set_h_size_flags(Control::SIZE_EXPAND_FILL);
filter->set_placeholder(TTR("Filter nodes"));
filter->add_theme_constant_override("minimum_character_width", 0);
filter->connect("text_changed", callable_mp(this, &SceneTreeDialog::_filter_changed));
vbc->add_child(filter);
tree = memnew(SceneTreeEditor(false, false, true));
tree->set_v_size_flags(Control::SIZE_EXPAND_FILL);
tree->get_scene_tree()->connect("item_activated", callable_mp(this, &SceneTreeDialog::_select));
vbc->add_child(tree);
}
SceneTreeDialog::~SceneTreeDialog() {
}
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