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godot/tools/editor/scene_tree_editor.cpp

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/*************************************************************************/
/* scene_tree_editor.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "scene/gui/label.h"
#include "editor_node.h"
#include "print_string.h"
#include "message_queue.h"
#include "scene/main/viewport.h"
#include "tools/editor/plugins/canvas_item_editor_plugin.h"
Node *SceneTreeEditor::get_scene_node() {
ERR_FAIL_COND_V(!is_inside_scene(),NULL);
if (get_scene()->get_root()->get_child_count() && get_scene()->get_root()->get_child(0)->cast_to<EditorNode>())
return get_scene()->get_root()->get_child(0)->cast_to<EditorNode>()->get_edited_scene();
else
return get_scene()->get_root();
return NULL;
}
void SceneTreeEditor::_subscene_option(int p_idx) {
Object *obj = ObjectDB::get_instance(instance_node);
if (!obj)
return;
Node *node = obj->cast_to<Node>();
if (!node)
return;
switch(p_idx) {
case SCENE_MENU_SHOW_CHILDREN: {
if (node->has_meta("__editor_show_subtree")) {
instance_menu->set_item_checked(0,true);
node->set_meta("__editor_show_subtree",Variant());
_update_tree();
} else {
node->set_meta("__editor_show_subtree",true);
_update_tree();
}
} break;
case SCENE_MENU_OPEN: {
emit_signal("open",node->get_filename());
} break;
}
}
void SceneTreeEditor::_cell_button_pressed(Object *p_item,int p_column,int p_id) {
TreeItem *item=p_item->cast_to<TreeItem>();
ERR_FAIL_COND(!item);
NodePath np = item->get_metadata(0);
Node *n=get_node(np);
ERR_FAIL_COND(!n);
if (p_id==BUTTON_SUBSCENE) {
//open scene request
Rect2 item_rect = tree->get_item_rect(item,0);
item_rect.pos.y-=tree->get_scroll().y;
item_rect.pos+=tree->get_global_pos();
instance_menu->set_pos(item_rect.pos+Vector2(0,item_rect.size.y));
instance_menu->set_size(Vector2(item_rect.size.x,0));
if (n->has_meta("__editor_show_subtree"))
instance_menu->set_item_checked(0,true);
else
instance_menu->set_item_checked(0,false);
instance_menu->popup();
instance_node=n->get_instance_ID();
//emit_signal("open",n->get_filename());
} else if (p_id==BUTTON_SCRIPT) {
RefPtr script=n->get_script();
if (!script.is_null())
emit_signal("open_script",script);
} else if (p_id==BUTTON_VISIBILITY) {
if (n->is_type("Spatial")) {
Spatial *ci = n->cast_to<Spatial>();
if (!ci->is_visible() && ci->get_parent_spatial() && !ci->get_parent_spatial()->is_visible()) {
error->set_text("This item cannot be made visible because the parent is hidden. Unhide the parent first.");
error->popup_centered_minsize(Size2(400,80));
return;
}
bool v = !bool(n->call("is_hidden"));
undo_redo->create_action("Toggle Spatial Visible");
undo_redo->add_do_method(n,"_set_visible_",!v);
undo_redo->add_undo_method(n,"_set_visible_",v);
undo_redo->commit_action();
} else if (n->is_type("CanvasItem")) {
CanvasItem *ci = n->cast_to<CanvasItem>();
if (!ci->is_visible() && ci->get_parent_item() && !ci->get_parent_item()->is_visible()) {
error->set_text("This item cannot be made visible because the parent is hidden. Unhide the parent first.");
error->popup_centered_minsize(Size2(400,80));
return;
}
bool v = !bool(n->call("is_hidden"));
undo_redo->create_action("Toggle CanvasItem Visible");
undo_redo->add_do_method(n,v?"hide":"show");
undo_redo->add_undo_method(n,v?"show":"hide");
undo_redo->commit_action();
}
} else if (p_id==BUTTON_LOCK) {
if (n->is_type("CanvasItem")) {
n->set_meta("_edit_lock_", Variant());
_update_tree();
emit_signal("node_changed");
}
} else if (p_id==BUTTON_GROUP) {
if (n->is_type("CanvasItem")) {
n->set_meta("_edit_group_", Variant());
_update_tree();
emit_signal("node_changed");
}
}
}
void SceneTreeEditor::_add_nodes(Node *p_node,TreeItem *p_parent) {
if (!p_node)
return;
// 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() && p_node->get_owner()->get_owner()==get_scene_node() && p_node->get_owner()->has_meta("__editor_show_subtree")) {
part_of_subscene=true;
//allow
} else {
return;
}
}
TreeItem *item = tree->create_item(p_parent);
item->set_text(0, p_node->get_name() );
if (can_rename && (p_node->get_owner() == get_scene_node() || p_node==get_scene_node()))
item->set_editable(0, true);
item->set_selectable(0,true);
if (can_rename) {
bool collapsed = p_node->has_meta("_editor_collapsed") ? (bool)p_node->get_meta("_editor_collapsed") : false;
if (collapsed)
item->set_collapsed(true);
}
Ref<Texture> icon;
if (p_node->has_meta("_editor_icon"))
icon=p_node->get_meta("_editor_icon");
else
icon=get_icon( (has_icon(p_node->get_type(),"EditorIcons")?p_node->get_type():String("Object")),"EditorIcons");
item->set_icon(0, icon );
item->set_metadata( 0,p_node->get_path() );
if (part_of_subscene) {
//item->set_selectable(0,marked_selectable);
item->set_custom_color(0,Color(0.8,0.4,0.20));
} else if (marked.has(p_node)) {
item->set_selectable(0,marked_selectable);
item->set_custom_color(0,Color(0.8,0.1,0.10));
} 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,Color(0.8,0.1,0.10));
break;
}
node=node->get_parent();
}
}
if (p_node!=get_scene_node() && p_node->get_filename()!="" && can_open_instance) {
item->add_button(0,get_icon("InstanceOptions","EditorIcons"),BUTTON_SUBSCENE);
item->set_tooltip(0,"Instance: "+p_node->get_filename()+"\nType: "+p_node->get_type());
} else {
item->set_tooltip(0,String(p_node->get_name())+"\nType: "+p_node->get_type());
}
if (can_open_instance) {
if (!p_node->is_connected("script_changed",this,"_node_script_changed"))
p_node->connect("script_changed",this,"_node_script_changed",varray(p_node));
if (!p_node->get_script().is_null()) {
item->add_button(0,get_icon("Script","EditorIcons"),BUTTON_SCRIPT);
}
if (p_node->is_type("CanvasItem")) {
bool is_locked = p_node->has_meta("_edit_lock_");//_edit_group_
if (is_locked)
item->add_button(0,get_icon("Lock", "EditorIcons"), BUTTON_LOCK);
bool is_grouped = p_node->has_meta("_edit_group_");
if (is_grouped)
item->add_button(0,get_icon("Group", "EditorIcons"), BUTTON_GROUP);
bool h = p_node->call("is_hidden");
if (h)
item->add_button(0,get_icon("Hidden","EditorIcons"),BUTTON_VISIBILITY);
else
item->add_button(0,get_icon("Visible","EditorIcons"),BUTTON_VISIBILITY);
if (!p_node->is_connected("visibility_changed",this,"_node_visibility_changed"))
p_node->connect("visibility_changed",this,"_node_visibility_changed",varray(p_node));
} else if (p_node->is_type("Spatial")) {
bool h = p_node->call("is_hidden");
if (h)
item->add_button(0,get_icon("Hidden","EditorIcons"),BUTTON_VISIBILITY);
else
item->add_button(0,get_icon("Visible","EditorIcons"),BUTTON_VISIBILITY);
if (!p_node->is_connected("visibility_changed",this,"_node_visibility_changed"))
p_node->connect("visibility_changed",this,"_node_visibility_changed",varray(p_node));
}
}
if (editor_selection) {
if (editor_selection->is_selected(p_node)) {
item->select(0);
}
}
if (selected==p_node) {
if (!editor_selection)
item->select(0);
item->set_as_cursor(0);
}
for (int i=0;i<p_node->get_child_count();i++) {
_add_nodes(p_node->get_child(i),item);
}
}
void SceneTreeEditor::_node_visibility_changed(Node *p_node) {
if (p_node!=get_scene_node() && !p_node->get_owner()) {
return;
}
TreeItem* item=p_node?_find(tree->get_root(),p_node->get_path()):NULL;
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_type("CanvasItem")) {
visible = !p_node->call("is_hidden");
} else if (p_node->is_type("Spatial")) {
visible = !p_node->call("is_hidden");
}
if (!visible)
item->set_button(0,idx,get_icon("Hidden","EditorIcons"));
else
item->set_button(0,idx,get_icon("Visible","EditorIcons"));
}
void SceneTreeEditor::_node_script_changed(Node *p_node) {
_update_tree();
/*
changes the order :|
TreeItem* item=p_node?_find(tree->get_root(),p_node->get_path()):NULL;
if (p_node->get_script().is_null()) {
int idx=item->get_button_by_id(0,2);
if (idx>=0)
item->erase_button(0,idx);
} else {
int idx=item->get_button_by_id(0,2);
if (idx<0)
item->add_button(0,get_icon("Script","EditorIcons"),2);
}*/
}
void SceneTreeEditor::_node_removed(Node *p_node) {
if (p_node->is_connected("script_changed",this,"_node_script_changed"))
p_node->disconnect("script_changed",this,"_node_script_changed");
if (p_node->is_type("Spatial") || p_node->is_type("CanvasItem")) {
if (p_node->is_connected("visibility_changed",this,"_node_visibility_changed"))
p_node->disconnect("visibility_changed",this,"_node_visibility_changed");
}
if (p_node==selected) {
selected=NULL;
emit_signal("node_selected");
}
}
void SceneTreeEditor::_update_tree() {
if (!is_inside_scene()) {
tree_dirty=false;
return;
}
updating_tree=true;
tree->clear();
if (get_scene_node()) {
_add_nodes( get_scene_node(), NULL );
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_scene())
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_changed() {
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::_cell_multi_selected(Object *p_object,int p_cell,bool p_selected) {
TreeItem *item = p_object->cast_to<TreeItem>();
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);
}
}
void SceneTreeEditor::_notification(int p_what) {
if (p_what==NOTIFICATION_ENTER_SCENE) {
get_scene()->connect("tree_changed",this,"_tree_changed");
get_scene()->connect("node_removed",this,"_node_removed");
instance_menu->set_item_icon(2,get_icon("Load","EditorIcons"));
tree->connect("item_collapsed",this,"_cell_collapsed");
// get_scene()->connect("tree_changed",this,"_tree_changed",Vector<Variant>(),CONNECT_DEFERRED);
// get_scene()->connect("node_removed",this,"_node_removed",Vector<Variant>(),CONNECT_DEFERRED);
_update_tree();
}
if (p_what==NOTIFICATION_EXIT_SCENE) {
get_scene()->disconnect("tree_changed",this,"_tree_changed");
get_scene()->disconnect("node_removed",this,"_node_removed");
_update_tree();
}
}
TreeItem* SceneTreeEditor::_find(TreeItem *p_node,const NodePath& p_path) {
if (!p_node)
return NULL;
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 NULL;
}
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()):NULL;
if (item) {
item->select(0);
item->set_as_cursor(0);
selected=p_node;
tree->ensure_cursor_is_visible();
} else {
if (!p_node)
selected=NULL;
_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 = o->cast_to<Node>();
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);
emit_signal("node_renamed");
if (!tree_dirty) {
MessageQueue::get_singleton()->push_call(this,"_update_tree");
tree_dirty=true;
}
}
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);
if (!undo_redo) {
n->set_name( which->get_text(0) );
which->set_metadata(0,n->get_path());
emit_signal("node_renamed");
} else {
undo_redo->create_action("Rename Node");
emit_signal("node_prerename",n,which->get_text(0));
undo_redo->add_do_method(this,"_rename_node",n->get_instance_ID(),which->get_text(0));
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_display_foreign_nodes(bool p_display) {
display_foreign=p_display;
_update_tree();
}
bool SceneTreeEditor::get_display_foreign_nodes() const {
return display_foreign;
}
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",this,"_selection_changed");
}
void SceneTreeEditor::_update_selection(TreeItem *item) {
ERR_FAIL_COND(!item);
NodePath np = item->get_metadata(0);
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=p_obj->cast_to<TreeItem>();
if (!ti)
return;
bool collapsed=ti->is_collapsed();
NodePath np = ti->get_metadata(0);
Node *n=get_node(np);
ERR_FAIL_COND(!n);
if (collapsed)
n->set_meta("_editor_collapsed",true);
else
n->set_meta("_editor_collapsed",Variant());
}
void SceneTreeEditor::_bind_methods() {
ObjectTypeDB::bind_method("_tree_changed",&SceneTreeEditor::_tree_changed);
ObjectTypeDB::bind_method("_update_tree",&SceneTreeEditor::_update_tree);
ObjectTypeDB::bind_method("_node_removed",&SceneTreeEditor::_node_removed);
ObjectTypeDB::bind_method("_selected_changed",&SceneTreeEditor::_selected_changed);
ObjectTypeDB::bind_method("_renamed",&SceneTreeEditor::_renamed);
ObjectTypeDB::bind_method("_rename_node",&SceneTreeEditor::_rename_node);
ObjectTypeDB::bind_method("_test_update_tree",&SceneTreeEditor::_test_update_tree);
ObjectTypeDB::bind_method("_cell_multi_selected",&SceneTreeEditor::_cell_multi_selected);
ObjectTypeDB::bind_method("_selection_changed",&SceneTreeEditor::_selection_changed);
ObjectTypeDB::bind_method("_cell_button_pressed",&SceneTreeEditor::_cell_button_pressed);
ObjectTypeDB::bind_method("_cell_collapsed",&SceneTreeEditor::_cell_collapsed);
ObjectTypeDB::bind_method("_subscene_option",&SceneTreeEditor::_subscene_option);
ObjectTypeDB::bind_method("_node_script_changed",&SceneTreeEditor::_node_script_changed);
ObjectTypeDB::bind_method("_node_visibility_changed",&SceneTreeEditor::_node_visibility_changed);
ADD_SIGNAL( MethodInfo("node_selected") );
ADD_SIGNAL( MethodInfo("node_renamed") );
ADD_SIGNAL( MethodInfo("node_prerename") );
ADD_SIGNAL( MethodInfo("node_changed") );
ADD_SIGNAL( MethodInfo("open") );
ADD_SIGNAL( MethodInfo("open_script") );
}
SceneTreeEditor::SceneTreeEditor(bool p_label,bool p_can_rename, bool p_can_open_instance) {
undo_redo=NULL;
tree_dirty=true;
selected=NULL;
marked_selectable=false;
marked_children_selectable=false;
can_rename=p_can_rename;
can_open_instance=p_can_open_instance;
display_foreign=false;
editor_selection=NULL;
if (p_label) {
Label *label = memnew( Label );
label->set_pos( Point2(10, 0));
label->set_text("Scene Tree (Nodes):");
add_child(label);
}
tree = memnew( Tree );
tree->set_anchor( MARGIN_RIGHT, ANCHOR_END );
tree->set_anchor( MARGIN_BOTTOM, ANCHOR_END );
tree->set_begin( Point2(0,p_label?18:0 ));
tree->set_end( Point2(0,0 ));
add_child( tree );
tree->connect("cell_selected", this,"_selected_changed");
tree->connect("item_edited", this,"_renamed");
tree->connect("multi_selected",this,"_cell_multi_selected");
tree->connect("button_pressed",this,"_cell_button_pressed");
// tree->connect("item_edited", this,"_renamed",Vector<Variant>(),true);
error = memnew( AcceptDialog );
add_child(error);
show_enabled_subscene=false;
last_hash=0;
pending_test_update=false;
updating_tree=false;
blocked=0;
instance_menu = memnew( PopupMenu );
instance_menu->add_check_item("Show Children",SCENE_MENU_SHOW_CHILDREN);
instance_menu->add_separator();
instance_menu->add_item("Open in Editor",SCENE_MENU_OPEN);
instance_menu->connect("item_pressed",this,"_subscene_option");
add_child(instance_menu);
}
SceneTreeEditor::~SceneTreeEditor() {
}
/******** DIALOG *********/
void SceneTreeDialog::_notification(int p_what) {
if (p_what==NOTIFICATION_ENTER_SCENE) {
connect("confirmed", this,"_select");
}
if (p_what==NOTIFICATION_DRAW) {
RID ci = get_canvas_item();
get_stylebox("panel","PopupMenu")->draw(ci,Rect2(Point2(),get_size()));
}
if (p_what==NOTIFICATION_VISIBILITY_CHANGED && is_visible()) {
tree->update_tree();
}
}
void SceneTreeDialog::_cancel() {
hide();
}
void SceneTreeDialog::_select() {
if (tree->get_selected()) {
emit_signal("selected",tree->get_selected()->get_path());
hide();
}
}
void SceneTreeDialog::_bind_methods() {
ObjectTypeDB::bind_method("_select",&SceneTreeDialog::_select);
ObjectTypeDB::bind_method("_cancel",&SceneTreeDialog::_cancel);
ADD_SIGNAL( MethodInfo("selected",PropertyInfo(Variant::NODE_PATH,"path")));
}
SceneTreeDialog::SceneTreeDialog() {
set_title("Select a Node");
tree = memnew( SceneTreeEditor(false,false) );
add_child(tree);
set_child_rect(tree);
}
SceneTreeDialog::~SceneTreeDialog()
{
}
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