New Code Completion

-=-=-=-=-=-=-=-=-=-

-Massive improvement to code completion
-Argument hinting for functions

If you manage to out-smart the code-completion in a situation where completion
should be possible to guess, let me know.

 Please enter the commit message for your changes. Lines starting

3 files changed, 40 insertions, 12 deletions

diff --git a/tools/editor/plugins/collision_polygon_editor_plugin.cpp b/tools/editor/plugins/collision_polygon_editor_plugin.cpp
index 35f22aa6f..b92acb60f 100644
--- a/tools/editor/plugins/collision_polygon_editor_plugin.cpp
+++ b/tools/editor/plugins/collision_polygon_editor_plugin.cpp
@@ -120,6 +120,8 @@ void CollisionPolygonEditor::_wip_close() {
 
 bool CollisionPolygonEditor::forward_spatial_input_event(Camera* p_camera,const InputEvent& p_event) {
 
+	if (!node)
+		return false;
 
 	Transform gt = node->get_global_transform();
 	float depth = node->get_depth()*0.5;
diff --git a/tools/editor/plugins/script_editor_plugin.cpp b/tools/editor/plugins/script_editor_plugin.cpp
index c5fb574c7..159e0de7f 100644
--- a/tools/editor/plugins/script_editor_plugin.cpp
+++ b/tools/editor/plugins/script_editor_plugin.cpp
@@ -384,9 +384,35 @@ void ScriptTextEditor::_validate_script() {
 	_update_name();
 }
 
-void ScriptTextEditor::_code_complete_script(const String& p_code, const String& p_keyword,int p_line, List<String>* r_options) {
 
-	Error err = script->get_language()->complete_keyword(p_code,p_line,script->get_path().get_base_dir(),p_keyword,r_options);
+static Node* _find_node_for_script(Node* p_base, Node*p_current, const Ref<Script>& p_script) {
+
+	if (p_current->get_owner()!=p_base && p_base!=p_current)
+		return NULL;
+	Ref<Script> c = p_current->get_script();
+	if (c==p_script)
+		return p_current;
+	for(int i=0;i<p_current->get_child_count();i++) {
+		Node *found = _find_node_for_script(p_base,p_current->get_child(i),p_script);
+		if (found)
+			return found;
+	}
+
+	return NULL;
+}
+
+void ScriptTextEditor::_code_complete_script(const String& p_code, List<String>* r_options) {
+
+	Node *base = get_tree()->get_edited_scene_root();
+	if (base) {
+		base = _find_node_for_script(base,base,script);
+	}
+	String hint;
+	Error err = script->get_language()->complete_code(p_code,script->get_path().get_base_dir(),base,r_options,hint);
+	if (hint!="") {
+		get_text_edit()->set_code_hint(hint);
+		print_line("hint: "+hint.replace(String::chr(0xFFFF),"|"));
+	}
 
 }
 
@@ -1559,21 +1585,21 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 	edit_menu = memnew( MenuButton );
 	menu_hb->add_child(edit_menu);
 	edit_menu->set_text("Edit");
-    edit_menu->get_popup()->add_item("Undo",EDIT_UNDO,KEY_MASK_CMD|KEY_Z);
-    edit_menu->get_popup()->add_item("Redo",EDIT_REDO,KEY_MASK_CMD|KEY_Y);
+	edit_menu->get_popup()->add_item("Undo",EDIT_UNDO,KEY_MASK_CMD|KEY_Z);
+	edit_menu->get_popup()->add_item("Redo",EDIT_REDO,KEY_MASK_CMD|KEY_Y);
 	edit_menu->get_popup()->add_separator();
 	edit_menu->get_popup()->add_item("Cut",EDIT_CUT,KEY_MASK_CMD|KEY_X);
 	edit_menu->get_popup()->add_item("Copy",EDIT_COPY,KEY_MASK_CMD|KEY_C);
 	edit_menu->get_popup()->add_item("Paste",EDIT_PASTE,KEY_MASK_CMD|KEY_V);
 	edit_menu->get_popup()->add_separator();
 	edit_menu->get_popup()->add_item("Select All",EDIT_SELECT_ALL,KEY_MASK_CMD|KEY_A);
-    edit_menu->get_popup()->add_separator();
-    edit_menu->get_popup()->add_item("Move Up",EDIT_MOVE_LINE_UP,KEY_MASK_ALT|KEY_UP);
-    edit_menu->get_popup()->add_item("Move Down",EDIT_MOVE_LINE_DOWN,KEY_MASK_ALT|KEY_DOWN);
-    edit_menu->get_popup()->add_item("Indent Left",EDIT_INDENT_LEFT,KEY_MASK_ALT|KEY_LEFT);
-    edit_menu->get_popup()->add_item("Indent Right",EDIT_INDENT_RIGHT,KEY_MASK_ALT|KEY_RIGHT);
-    edit_menu->get_popup()->add_item("Toggle Comment",EDIT_TOGGLE_COMMENT,KEY_MASK_CMD|KEY_SLASH);
-    edit_menu->get_popup()->add_item("Clone Down",EDIT_CLONE_DOWN,KEY_MASK_CMD|KEY_B);
+	edit_menu->get_popup()->add_separator();
+	edit_menu->get_popup()->add_item("Move Up",EDIT_MOVE_LINE_UP,KEY_MASK_ALT|KEY_UP);
+	edit_menu->get_popup()->add_item("Move Down",EDIT_MOVE_LINE_DOWN,KEY_MASK_ALT|KEY_DOWN);
+	edit_menu->get_popup()->add_item("Indent Left",EDIT_INDENT_LEFT,KEY_MASK_ALT|KEY_LEFT);
+	edit_menu->get_popup()->add_item("Indent Right",EDIT_INDENT_RIGHT,KEY_MASK_ALT|KEY_RIGHT);
+	edit_menu->get_popup()->add_item("Toggle Comment",EDIT_TOGGLE_COMMENT,KEY_MASK_CMD|KEY_SLASH);
+	edit_menu->get_popup()->add_item("Clone Down",EDIT_CLONE_DOWN,KEY_MASK_CMD|KEY_B);
 	edit_menu->get_popup()->add_separator();
 	edit_menu->get_popup()->add_item("Complete Symbol",EDIT_COMPLETE,KEY_MASK_CMD|KEY_SPACE);
 	edit_menu->get_popup()->add_item("Auto Indent",EDIT_AUTO_INDENT,KEY_MASK_CMD|KEY_I);
diff --git a/tools/editor/plugins/script_editor_plugin.h b/tools/editor/plugins/script_editor_plugin.h
index 01942fab2..136d96658 100644
--- a/tools/editor/plugins/script_editor_plugin.h
+++ b/tools/editor/plugins/script_editor_plugin.h
@@ -85,7 +85,7 @@ protected:
 
 
 	virtual void _validate_script();
-	virtual void _code_complete_script(const String& p_code,const String& p_keyword, int p_line, List<String>* r_options);
+	virtual void _code_complete_script(const String& p_code, List<String>* r_options);
 	virtual void _load_theme_settings();
 	void _notification(int p_what);