Improve VisualScript UX

* Prototype faster function call ux.
* Work on general search ux.
* Able to create nodes from search.
* Show class for variables but not methods.
* Get actions search working.
* Descriptions now show for both methods and properties.
* Enable zooming on mouse wheel up and down.
* Make the drag trigger on right mouse button.
* Search now shows for action visual script nodes.
* Able to search visual node names.
* Search works better.
* Change zooming scale to hide artifacts better.
* Remove zoom changes
* Select from base should check properties too like the other functions.
* Seq_connect flag is needed to set sequence lines correctly.
* Remove comment
* Code cleanup with function names and arguments.
* Use brief description for search descriptions.
* Clean and fix bug with input nodes connecting with sequence lines.
* Add a warning and fix some edge conditions with sequence into data lines and vice versa.
* Don't search functions when pulling from a sequence node.
* Don't show actions when pulling from a data line.
* Set set and get properties.
* Convert visual script operators to the correct type
* Create a function preset finds only functions.
* Singletons can now find functions.
* Add shift-a for generic search.
* Add brief descriptions for Visual Script nodes.
* Search boxes can now filter names.
* Add bigger hit zones to node connect.
* For the drop zones, make all the rect2 areas the same size.
* Function names in visual script node should be lower case so that search works better.
* Use the convention of capitalize() for set, set, visual script nodes and methods.
* Make search more general. Ignore "_" and make case-insensitive. Also made the search window smaller and remove extra info from search
* Make type_cast use the connecting node's type and remove use of found variable.
* Fix case where you call an instance's call function where it becomes an invalid call.
* Make get_visual_node_names use a set of filters, move action creations and fix bug with sequence node connections.
* Make the window bigger.
* Make connect_data and connect_seq more robust.
* Add icons to search items.
* Add vs constructors in shift-a menu.
* Operators, builtins and constructors show type name. Fix several problems with port connections.
* In shift-a mode search everything.
* Code cleanup
* Work on autocompleting the type.
  * Use type guess in action creation.
  * Check if type hint string exists in object variables when generating the visual script search.
  * Add the hint to SceneTree.
  * Add original type detection.
  * Make type casting great again. This puts the type casted base type as the data output type string hint.
  * Pass the type in a VisualScriptFunctionCall too.
  * Set the base type correctly in VisualScriptFunctionGet and VisualScriptFunctionSet using hint string.
  * Make sure the instance is passed in VisualScriptPropertySet.
  * Restore search on the node's type.
* Remove dependencies from graph_edit.
* Remove dependencies from property_selector and name the class visual_script_property_selector.
* Extract hot zones into a function.
* Move hot_zones constants into default theme.
* Bigger capture zones.
* Clean messy port_grab_distance variables.
* Remove RMB functionality.
* Remove memory leak on showing visual script descriptions.
* Read the port_grab_distance constants on enter tree and theme changed.

1 files changed, 92 insertions, 0 deletions

diff --git a/modules/visual_script/visual_script_property_selector.h b/modules/visual_script/visual_script_property_selector.h
new file mode 100644
index 0000000000..ec536f86a8
--- /dev/null
+++ b/modules/visual_script/visual_script_property_selector.h
@@ -0,0 +1,92 @@
+/*************************************************************************/
+/*  visual_script_property_selector.h                                    */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 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.                */
+/*************************************************************************/
+
+#ifndef VISUALSCRIPT_PROPERTYSELECTOR_H
+#define VISUALSCRIPT_PROPERTYSELECTOR_H
+
+#include "editor/property_editor.h"
+#include "editor_help.h"
+#include "scene/gui/rich_text_label.h"
+
+class VisualScriptPropertySelector : public ConfirmationDialog {
+	GDCLASS(VisualScriptPropertySelector, ConfirmationDialog)
+
+	LineEdit *search_box;
+	Tree *search_options;
+
+	void _update_search();
+
+	void create_visualscript_item(const String &name, TreeItem *const root, const String &search_input, const String &text);
+
+	void get_visual_node_names(const String &root_filter, const Set<String> &filter, bool &found, TreeItem *const root, LineEdit *const search_box);
+
+	void _sbox_input(const Ref<InputEvent> &p_ie);
+
+	void _confirmed();
+	void _text_changed(const String &p_newtext);
+
+	EditorHelpBit *help_bit;
+
+	bool properties;
+	bool visual_script_generic;
+	String selected;
+	Variant::Type type;
+	String base_type;
+	ObjectID script;
+	Object *instance;
+	bool virtuals_only;
+
+	bool seq_connect = false;
+
+	void _item_selected();
+
+	Vector<Variant::Type> type_filter;
+
+protected:
+	void _notification(int p_what);
+	static void _bind_methods();
+
+public:
+	void select_method_from_base_type(const String &p_base, const String &p_current = "", bool p_virtuals_only = false);
+	void select_from_base_type(const String &p_base, const String &p_current = "", bool p_virtuals_only = false, bool p_seq_connect = false);
+	void select_from_script(const Ref<Script> &p_script, const String &p_current /*= ""*/);
+	void select_from_basic_type(Variant::Type p_type, const String &p_current = "");
+	void select_from_action(const String &p_type, const String &p_current = "");
+	void select_from_instance(Object *p_instance, const String &p_current = "");
+	void select_from_visual_script(const String &p_base);
+
+	void show_window(float p_screen_ratio);
+
+	void set_type_filter(const Vector<Variant::Type> &p_type_filter);
+
+	VisualScriptPropertySelector();
+};
+
+#endif // VISUALSCRIPT_PROPERTYSELECTOR_H