1/**************************************************************************/
2/* visual_shader_editor_plugin.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
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8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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30
31#ifndef VISUAL_SHADER_EDITOR_PLUGIN_H
32#define VISUAL_SHADER_EDITOR_PLUGIN_H
33
34#include "editor/editor_plugin.h"
35#include "editor/editor_properties.h"
36#include "editor/plugins/editor_resource_conversion_plugin.h"
37#include "scene/resources/syntax_highlighter.h"
38#include "scene/resources/visual_shader.h"
39
40class CodeEdit;
41class ColorPicker;
42class CurveEditor;
43class GraphEdit;
44class GraphElement;
45class MenuButton;
46class PopupPanel;
47class RichTextLabel;
48class Tree;
49
50class VisualShaderEditor;
51
52class VisualShaderNodePlugin : public RefCounted {
53 GDCLASS(VisualShaderNodePlugin, RefCounted);
54
55protected:
56 VisualShaderEditor *vseditor = nullptr;
57
58protected:
59 static void _bind_methods();
60
61 GDVIRTUAL2RC(Object *, _create_editor, Ref<Resource>, Ref<VisualShaderNode>)
62
63public:
64 void set_editor(VisualShaderEditor *p_editor);
65 virtual Control *create_editor(const Ref<Resource> &p_parent_resource, const Ref<VisualShaderNode> &p_node);
66};
67
68class VisualShaderGraphPlugin : public RefCounted {
69 GDCLASS(VisualShaderGraphPlugin, RefCounted);
70
71private:
72 VisualShaderEditor *editor = nullptr;
73
74 struct InputPort {
75 Button *default_input_button = nullptr;
76 };
77
78 struct Port {
79 TextureButton *preview_button = nullptr;
80 };
81
82 struct Link {
83 VisualShader::Type type = VisualShader::Type::TYPE_MAX;
84 VisualShaderNode *visual_node = nullptr;
85 GraphElement *graph_element = nullptr;
86 bool preview_visible = false;
87 int preview_pos = 0;
88 HashMap<int, InputPort> input_ports;
89 HashMap<int, Port> output_ports;
90 VBoxContainer *preview_box = nullptr;
91 LineEdit *parameter_name = nullptr;
92 CodeEdit *expression_edit = nullptr;
93 CurveEditor *curve_editors[3] = { nullptr, nullptr, nullptr };
94 };
95
96 Ref<VisualShader> visual_shader;
97 HashMap<int, Link> links;
98 List<VisualShader::Connection> connections;
99
100 Color vector_expanded_color[4];
101
102protected:
103 static void _bind_methods();
104
105public:
106 void set_editor(VisualShaderEditor *p_editor);
107 void register_shader(VisualShader *p_visual_shader);
108 void set_connections(const List<VisualShader::Connection> &p_connections);
109 void register_link(VisualShader::Type p_type, int p_id, VisualShaderNode *p_visual_node, GraphElement *p_graph_element);
110 void register_output_port(int p_id, int p_port, TextureButton *p_button);
111 void register_parameter_name(int p_id, LineEdit *p_parameter_name);
112 void register_default_input_button(int p_node_id, int p_port_id, Button *p_button);
113 void register_expression_edit(int p_node_id, CodeEdit *p_expression_edit);
114 void register_curve_editor(int p_node_id, int p_index, CurveEditor *p_curve_editor);
115 void clear_links();
116 void set_shader_type(VisualShader::Type p_type);
117 bool is_preview_visible(int p_id) const;
118 void update_node(VisualShader::Type p_type, int p_id);
119 void update_node_deferred(VisualShader::Type p_type, int p_node_id);
120 void add_node(VisualShader::Type p_type, int p_id, bool p_just_update);
121 void remove_node(VisualShader::Type p_type, int p_id, bool p_just_update);
122 void connect_nodes(VisualShader::Type p_type, int p_from_node, int p_from_port, int p_to_node, int p_to_port);
123 void disconnect_nodes(VisualShader::Type p_type, int p_from_node, int p_from_port, int p_to_node, int p_to_port);
124 void show_port_preview(VisualShader::Type p_type, int p_node_id, int p_port_id, bool p_is_valid);
125 void set_node_position(VisualShader::Type p_type, int p_id, const Vector2 &p_position);
126 void refresh_node_ports(VisualShader::Type p_type, int p_node);
127 void set_input_port_default_value(VisualShader::Type p_type, int p_node_id, int p_port_id, Variant p_value);
128 void update_parameter_refs();
129 void set_parameter_name(VisualShader::Type p_type, int p_node_id, const String &p_name);
130 void update_curve(int p_node_id);
131 void update_curve_xyz(int p_node_id);
132 void set_expression(VisualShader::Type p_type, int p_node_id, const String &p_expression);
133 int get_constant_index(float p_constant) const;
134 Ref<Script> get_node_script(int p_node_id) const;
135 void update_node_size(int p_node_id);
136 void update_theme();
137 bool is_node_has_parameter_instances_relatively(VisualShader::Type p_type, int p_node) const;
138 VisualShader::Type get_shader_type() const;
139
140 VisualShaderGraphPlugin();
141 ~VisualShaderGraphPlugin();
142};
143
144class VisualShaderEditedProperty : public RefCounted {
145 GDCLASS(VisualShaderEditedProperty, RefCounted);
146
147private:
148 Variant edited_property;
149
150protected:
151 static void _bind_methods();
152
153public:
154 void set_edited_property(Variant p_variant);
155 Variant get_edited_property() const;
156
157 VisualShaderEditedProperty() {}
158};
159
160class VisualShaderEditor : public VBoxContainer {
161 GDCLASS(VisualShaderEditor, VBoxContainer);
162 friend class VisualShaderGraphPlugin;
163
164 PopupPanel *property_editor_popup = nullptr;
165 EditorProperty *property_editor = nullptr;
166 int editing_node = -1;
167 int editing_port = -1;
168 Ref<VisualShaderEditedProperty> edited_property_holder;
169
170 Ref<VisualShader> visual_shader;
171 GraphEdit *graph = nullptr;
172 Button *add_node = nullptr;
173 MenuButton *varying_button = nullptr;
174 Button *preview_shader = nullptr;
175
176 OptionButton *edit_type = nullptr;
177 OptionButton *edit_type_standard = nullptr;
178 OptionButton *edit_type_particles = nullptr;
179 OptionButton *edit_type_sky = nullptr;
180 OptionButton *edit_type_fog = nullptr;
181 CheckBox *custom_mode_box = nullptr;
182 bool custom_mode_enabled = false;
183
184 bool pending_update_preview = false;
185 bool shader_error = false;
186 Window *preview_window = nullptr;
187 VBoxContainer *preview_vbox = nullptr;
188 CodeEdit *preview_text = nullptr;
189 Ref<CodeHighlighter> syntax_highlighter = nullptr;
190 PanelContainer *error_panel = nullptr;
191 Label *error_label = nullptr;
192
193 bool pending_custom_scripts_to_delete = false;
194 List<Ref<Script>> custom_scripts_to_delete;
195
196 bool _block_update_options_menu = false;
197 bool _block_rebuild_shader = false;
198
199 Point2 saved_node_pos;
200 bool saved_node_pos_dirty = false;
201
202 ConfirmationDialog *members_dialog = nullptr;
203 VisualShaderNode::PortType members_input_port_type = VisualShaderNode::PORT_TYPE_MAX;
204 VisualShaderNode::PortType members_output_port_type = VisualShaderNode::PORT_TYPE_MAX;
205 PopupMenu *popup_menu = nullptr;
206 PopupMenu *constants_submenu = nullptr;
207 MenuButton *tools = nullptr;
208
209 ConfirmationDialog *add_varying_dialog = nullptr;
210 OptionButton *varying_type = nullptr;
211 LineEdit *varying_name = nullptr;
212 OptionButton *varying_mode = nullptr;
213 Label *varying_error_label = nullptr;
214
215 ConfirmationDialog *remove_varying_dialog = nullptr;
216 Tree *varyings = nullptr;
217
218 PopupPanel *comment_title_change_popup = nullptr;
219 LineEdit *comment_title_change_edit = nullptr;
220
221 PopupPanel *comment_desc_change_popup = nullptr;
222 TextEdit *comment_desc_change_edit = nullptr;
223
224 bool preview_first = true;
225 bool preview_showed = false;
226
227 enum ShaderModeFlags {
228 MODE_FLAGS_SPATIAL_CANVASITEM = 1,
229 MODE_FLAGS_SKY = 2,
230 MODE_FLAGS_PARTICLES = 4,
231 MODE_FLAGS_FOG = 8,
232 };
233
234 int mode = MODE_FLAGS_SPATIAL_CANVASITEM;
235
236 enum TypeFlags {
237 TYPE_FLAGS_VERTEX = 1,
238 TYPE_FLAGS_FRAGMENT = 2,
239 TYPE_FLAGS_LIGHT = 4,
240 };
241
242 enum ParticlesTypeFlags {
243 TYPE_FLAGS_EMIT = 1,
244 TYPE_FLAGS_PROCESS = 2,
245 TYPE_FLAGS_COLLIDE = 4,
246 TYPE_FLAGS_EMIT_CUSTOM = 8,
247 TYPE_FLAGS_PROCESS_CUSTOM = 16,
248 };
249
250 enum SkyTypeFlags {
251 TYPE_FLAGS_SKY = 1,
252 };
253
254 enum FogTypeFlags {
255 TYPE_FLAGS_FOG = 1,
256 };
257
258 enum ToolsMenuOptions {
259 EXPAND_ALL,
260 COLLAPSE_ALL
261 };
262
263 enum NodeMenuOptions {
264 ADD,
265 SEPARATOR, // ignore
266 CUT,
267 COPY,
268 PASTE,
269 DELETE,
270 DUPLICATE,
271 CLEAR_COPY_BUFFER,
272 SEPARATOR2, // ignore
273 FLOAT_CONSTANTS,
274 CONVERT_CONSTANTS_TO_PARAMETERS,
275 CONVERT_PARAMETERS_TO_CONSTANTS,
276 SEPARATOR3, // ignore
277 SET_COMMENT_TITLE,
278 SET_COMMENT_DESCRIPTION,
279 };
280
281 enum class VaryingMenuOptions {
282 ADD,
283 REMOVE,
284 };
285
286 Tree *members = nullptr;
287 AcceptDialog *alert = nullptr;
288 LineEdit *node_filter = nullptr;
289 RichTextLabel *node_desc = nullptr;
290 Label *highend_label = nullptr;
291
292 void _tools_menu_option(int p_idx);
293 void _show_members_dialog(bool at_mouse_pos, VisualShaderNode::PortType p_input_port_type = VisualShaderNode::PORT_TYPE_MAX, VisualShaderNode::PortType p_output_port_type = VisualShaderNode::PORT_TYPE_MAX);
294
295 void _varying_menu_id_pressed(int p_idx);
296 void _show_add_varying_dialog();
297 void _show_remove_varying_dialog();
298
299 void _update_nodes();
300 void _update_graph();
301
302 struct AddOption {
303 String name;
304 String category;
305 String type;
306 String description;
307 Vector<Variant> ops;
308 Ref<Script> script;
309 int mode = 0;
310 int return_type = 0;
311 int func = 0;
312 bool highend = false;
313 bool is_custom = false;
314 bool is_native = false;
315 int temp_idx = 0;
316
317 AddOption(const String &p_name = String(), const String &p_category = String(), const String &p_type = String(), const String &p_description = String(), const Vector<Variant> &p_ops = Vector<Variant>(), int p_return_type = -1, int p_mode = -1, int p_func = -1, bool p_highend = false) {
318 name = p_name;
319 type = p_type;
320 category = p_category;
321 description = p_description;
322 ops = p_ops;
323 return_type = p_return_type;
324 mode = p_mode;
325 func = p_func;
326 highend = p_highend;
327 }
328 };
329 struct _OptionComparator {
330 _FORCE_INLINE_ bool operator()(const AddOption &a, const AddOption &b) const {
331 return a.category.count("/") > b.category.count("/") || (a.category + "/" + a.name).naturalnocasecmp_to(b.category + "/" + b.name) < 0;
332 }
333 };
334
335 Vector<AddOption> add_options;
336 int cubemap_node_option_idx;
337 int texture2d_node_option_idx;
338 int texture2d_array_node_option_idx;
339 int texture3d_node_option_idx;
340 int custom_node_option_idx;
341 int curve_node_option_idx;
342 int curve_xyz_node_option_idx;
343 List<String> keyword_list;
344
345 List<VisualShaderNodeParameterRef> uniform_refs;
346
347 void _draw_color_over_button(Object *p_obj, Color p_color);
348
349 void _setup_node(VisualShaderNode *p_node, const Vector<Variant> &p_ops);
350 void _add_node(int p_idx, const Vector<Variant> &p_ops, String p_resource_path = "", int p_node_idx = -1);
351 void _add_varying(const String &p_name, VisualShader::VaryingMode p_mode, VisualShader::VaryingType p_type);
352 void _remove_varying(const String &p_name);
353 void _update_options_menu();
354 void _set_mode(int p_which);
355
356 void _show_preview_text();
357 void _preview_close_requested();
358 void _preview_size_changed();
359 void _update_preview();
360 void _update_next_previews(int p_node_id);
361 void _get_next_nodes_recursively(VisualShader::Type p_type, int p_node_id, LocalVector<int> &r_nodes) const;
362 String _get_description(int p_idx);
363
364 struct DragOp {
365 VisualShader::Type type = VisualShader::Type::TYPE_MAX;
366 int node = 0;
367 Vector2 from;
368 Vector2 to;
369 };
370 List<DragOp> drag_buffer;
371 bool drag_dirty = false;
372 void _node_dragged(const Vector2 &p_from, const Vector2 &p_to, int p_node);
373 void _nodes_dragged();
374 bool updating = false;
375
376 void _connection_request(const String &p_from, int p_from_index, const String &p_to, int p_to_index);
377 void _disconnection_request(const String &p_from, int p_from_index, const String &p_to, int p_to_index);
378
379 void _scroll_changed(const Vector2 &p_scroll);
380 void _node_selected(Object *p_node);
381
382 void _delete_nodes(int p_type, const List<int> &p_nodes);
383 void _close_node_request(int p_type, int p_node);
384 void _close_nodes_request(const TypedArray<StringName> &p_nodes);
385
386 void _node_changed(int p_id);
387
388 void _edit_port_default_input(Object *p_button, int p_node, int p_port);
389 void _port_edited(const StringName &p_property, const Variant &p_value, const String &p_field, bool p_changing);
390
391 int to_node = -1;
392 int to_slot = -1;
393 int from_node = -1;
394 int from_slot = -1;
395
396 HashSet<int> selected_constants;
397 HashSet<int> selected_parameters;
398 int selected_comment = -1;
399 int selected_float_constant = -1;
400
401 void _convert_constants_to_parameters(bool p_vice_versa);
402 void _replace_node(VisualShader::Type p_type_id, int p_node_id, const StringName &p_from, const StringName &p_to);
403 void _update_constant(VisualShader::Type p_type_id, int p_node_id, Variant p_var, int p_preview_port);
404 void _update_parameter(VisualShader::Type p_type_id, int p_node_id, Variant p_var, int p_preview_port);
405
406 void _connection_to_empty(const String &p_from, int p_from_slot, const Vector2 &p_release_position);
407 void _connection_from_empty(const String &p_to, int p_to_slot, const Vector2 &p_release_position);
408
409 void _comment_title_popup_show(const Point2 &p_position, int p_node_id);
410 void _comment_title_popup_hide();
411 void _comment_title_popup_focus_out();
412 void _comment_title_text_changed(const String &p_new_text);
413 void _comment_title_text_submitted(const String &p_new_text);
414
415 void _comment_desc_popup_show(const Point2 &p_position, int p_node_id);
416 void _comment_desc_popup_hide();
417 void _comment_desc_confirm();
418 void _comment_desc_text_changed();
419
420 void _parameter_line_edit_changed(const String &p_text, int p_node_id);
421 void _parameter_line_edit_focus_out(Object *p_line_edit, int p_node_id);
422
423 void _port_name_focus_out(Object *p_line_edit, int p_node_id, int p_port_id, bool p_output);
424
425 struct CopyItem {
426 int id;
427 Ref<VisualShaderNode> node;
428 Vector2 position;
429 Vector2 size;
430 String group_inputs;
431 String group_outputs;
432 String expression;
433 bool disabled = false;
434 };
435
436 void _dup_copy_nodes(int p_type, List<CopyItem> &r_nodes, List<VisualShader::Connection> &r_connections);
437 void _dup_paste_nodes(int p_type, List<CopyItem> &r_items, const List<VisualShader::Connection> &p_connections, const Vector2 &p_offset, bool p_duplicate);
438
439 void _duplicate_nodes();
440
441 static Vector2 selection_center;
442 static List<CopyItem> copy_items_buffer;
443 static List<VisualShader::Connection> copy_connections_buffer;
444
445 void _clear_copy_buffer();
446 void _copy_nodes(bool p_cut);
447 void _paste_nodes(bool p_use_custom_position = false, const Vector2 &p_custom_position = Vector2());
448
449 Vector<Ref<VisualShaderNodePlugin>> plugins;
450 Ref<VisualShaderGraphPlugin> graph_plugin;
451
452 void _mode_selected(int p_id);
453 void _custom_mode_toggled(bool p_enabled);
454
455 void _input_select_item(Ref<VisualShaderNodeInput> p_input, String p_name);
456 void _parameter_ref_select_item(Ref<VisualShaderNodeParameterRef> p_parameter_ref, String p_name);
457 void _varying_select_item(Ref<VisualShaderNodeVarying> p_varying, String p_name);
458
459 void _float_constant_selected(int p_which);
460
461 VisualShader::Type get_current_shader_type() const;
462
463 void _add_input_port(int p_node, int p_port, int p_port_type, const String &p_name);
464 void _remove_input_port(int p_node, int p_port);
465 void _change_input_port_type(int p_type, int p_node, int p_port);
466 void _change_input_port_name(const String &p_text, Object *p_line_edit, int p_node, int p_port);
467
468 void _add_output_port(int p_node, int p_port, int p_port_type, const String &p_name);
469 void _remove_output_port(int p_node, int p_port);
470 void _change_output_port_type(int p_type, int p_node, int p_port);
471 void _change_output_port_name(const String &p_text, Object *p_line_edit, int p_node, int p_port);
472 void _expand_output_port(int p_node, int p_port, bool p_expand);
473
474 void _expression_focus_out(Object *p_code_edit, int p_node);
475
476 void _set_node_size(int p_type, int p_node, const Size2 &p_size);
477 void _node_resized(const Vector2 &p_new_size, int p_type, int p_node);
478
479 void _preview_select_port(int p_node, int p_port);
480 void _graph_gui_input(const Ref<InputEvent> &p_event);
481
482 void _member_filter_changed(const String &p_text);
483 void _sbox_input(const Ref<InputEvent> &p_ie);
484 void _member_selected();
485 void _member_unselected();
486 void _member_create();
487 void _member_cancel();
488
489 void _varying_create();
490 void _varying_name_changed(const String &p_text);
491 void _varying_deleted();
492 void _varying_selected();
493 void _varying_unselected();
494 void _update_varying_tree();
495
496 Vector2 menu_point;
497 void _node_menu_id_pressed(int p_idx);
498
499 Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
500 bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
501 void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
502
503 bool _is_available(int p_mode);
504 void _update_parameters(bool p_update_refs);
505 void _update_parameter_refs(HashSet<String> &p_names);
506 void _update_varyings();
507
508 void _update_options_menu_deferred();
509 void _rebuild_shader_deferred();
510
511 void _visibility_changed();
512
513 void _get_current_mode_limits(int &r_begin_type, int &r_end_type) const;
514 void _update_custom_script(const Ref<Script> &p_script);
515 void _script_created(const Ref<Script> &p_script);
516 void _resource_saved(const Ref<Resource> &p_resource);
517 void _resource_removed(const Ref<Resource> &p_resource);
518 void _resources_removed();
519
520protected:
521 void _notification(int p_what);
522 static void _bind_methods();
523
524public:
525 void add_plugin(const Ref<VisualShaderNodePlugin> &p_plugin);
526 void remove_plugin(const Ref<VisualShaderNodePlugin> &p_plugin);
527
528 VisualShaderGraphPlugin *get_graph_plugin() { return graph_plugin.ptr(); }
529
530 void clear_custom_types();
531 void add_custom_type(const String &p_name, const String &p_type, const Ref<Script> &p_script, const String &p_description, int p_return_icon_type, const String &p_category, bool p_highend);
532
533 Dictionary get_custom_node_data(Ref<VisualShaderNodeCustom> &p_custom_node);
534 void update_custom_type(const Ref<Resource> &p_resource);
535
536 virtual Size2 get_minimum_size() const override;
537 void edit(VisualShader *p_visual_shader);
538 VisualShaderEditor();
539};
540
541class VisualShaderNodePluginDefault : public VisualShaderNodePlugin {
542 GDCLASS(VisualShaderNodePluginDefault, VisualShaderNodePlugin);
543
544public:
545 virtual Control *create_editor(const Ref<Resource> &p_parent_resource, const Ref<VisualShaderNode> &p_node) override;
546};
547
548class EditorPropertyVisualShaderMode : public EditorProperty {
549 GDCLASS(EditorPropertyVisualShaderMode, EditorProperty);
550 OptionButton *options = nullptr;
551
552 void _option_selected(int p_which);
553
554protected:
555 static void _bind_methods();
556
557public:
558 void setup(const Vector<String> &p_options);
559 virtual void update_property() override;
560 void set_option_button_clip(bool p_enable);
561 EditorPropertyVisualShaderMode();
562};
563
564class EditorInspectorVisualShaderModePlugin : public EditorInspectorPlugin {
565 GDCLASS(EditorInspectorVisualShaderModePlugin, EditorInspectorPlugin);
566
567public:
568 virtual bool can_handle(Object *p_object) override;
569 virtual bool parse_property(Object *p_object, const Variant::Type p_type, const String &p_path, const PropertyHint p_hint, const String &p_hint_text, const BitField<PropertyUsageFlags> p_usage, const bool p_wide = false) override;
570};
571
572class VisualShaderNodePortPreview : public Control {
573 GDCLASS(VisualShaderNodePortPreview, Control);
574 Ref<VisualShader> shader;
575 VisualShader::Type type = VisualShader::Type::TYPE_MAX;
576 int node = 0;
577 int port = 0;
578 bool is_valid = false;
579 void _shader_changed(); //must regen
580protected:
581 void _notification(int p_what);
582 static void _bind_methods();
583
584public:
585 virtual Size2 get_minimum_size() const override;
586 void setup(const Ref<VisualShader> &p_shader, VisualShader::Type p_type, int p_node, int p_port, bool p_is_valid);
587};
588
589class VisualShaderConversionPlugin : public EditorResourceConversionPlugin {
590 GDCLASS(VisualShaderConversionPlugin, EditorResourceConversionPlugin);
591
592public:
593 virtual String converts_to() const override;
594 virtual bool handles(const Ref<Resource> &p_resource) const override;
595 virtual Ref<Resource> convert(const Ref<Resource> &p_resource) const override;
596};
597
598#endif // VISUAL_SHADER_EDITOR_PLUGIN_H
599