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visual_shader_editor_plugin.cpp
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/**************************************************************************/
/* visual_shader_editor_plugin.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* 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 "visual_shader_editor_plugin.h"
#include "core/config/project_settings.h"
#include "core/io/resource_loader.h"
#include "core/math/math_defs.h"
#include "core/os/keyboard.h"
#include "editor/editor_node.h"
#include "editor/editor_properties.h"
#include "editor/editor_properties_vector.h"
#include "editor/editor_settings.h"
#include "editor/editor_string_names.h"
#include "editor/editor_undo_redo_manager.h"
#include "editor/filesystem_dock.h"
#include "editor/inspector_dock.h"
#include "editor/plugins/curve_editor_plugin.h"
#include "editor/plugins/shader_editor_plugin.h"
#include "editor/themes/editor_scale.h"
#include "scene/animation/tween.h"
#include "scene/gui/button.h"
#include "scene/gui/check_box.h"
#include "scene/gui/code_edit.h"
#include "scene/gui/color_picker.h"
#include "scene/gui/graph_edit.h"
#include "scene/gui/menu_button.h"
#include "scene/gui/option_button.h"
#include "scene/gui/popup.h"
#include "scene/gui/rich_text_label.h"
#include "scene/gui/separator.h"
#include "scene/gui/tree.h"
#include "scene/gui/view_panner.h"
#include "scene/main/window.h"
#include "scene/resources/curve_texture.h"
#include "scene/resources/style_box_flat.h"
#include "scene/resources/visual_shader_nodes.h"
#include "scene/resources/visual_shader_particle_nodes.h"
#include "servers/display_server.h"
#include "servers/rendering/shader_preprocessor.h"
#include "servers/rendering/shader_types.h"
struct FloatConstantDef {
String name;
float value = 0;
String desc;
};
static FloatConstantDef float_constant_defs[] = {
{ "E", Math_E, TTR("E constant (2.718282). Represents the base of the natural logarithm.") },
{ "Epsilon", CMP_EPSILON, TTR("Epsilon constant (0.00001). Smallest possible scalar number.") },
{ "Phi", 1.618034f, TTR("Phi constant (1.618034). Golden ratio.") },
{ "Pi/4", Math_PI / 4, TTR("Pi/4 constant (0.785398) or 45 degrees.") },
{ "Pi/2", Math_PI / 2, TTR("Pi/2 constant (1.570796) or 90 degrees.") },
{ "Pi", Math_PI, TTR("Pi constant (3.141593) or 180 degrees.") },
{ "Tau", Math_TAU, TTR("Tau constant (6.283185) or 360 degrees.") },
{ "Sqrt2", Math_SQRT2, TTR("Sqrt2 constant (1.414214). Square root of 2.") }
};
const int MAX_FLOAT_CONST_DEFS = sizeof(float_constant_defs) / sizeof(FloatConstantDef);
///////////////////
void VisualShaderNodePlugin::set_editor(VisualShaderEditor *p_editor) {
vseditor = p_editor;
}
Control *VisualShaderNodePlugin::create_editor(const Ref<Resource> &p_parent_resource, const Ref<VisualShaderNode> &p_node) {
Object *ret = nullptr;
GDVIRTUAL_CALL(_create_editor, p_parent_resource, p_node, ret);
return Object::cast_to<Control>(ret);
}
void VisualShaderNodePlugin::_bind_methods() {
GDVIRTUAL_BIND(_create_editor, "parent_resource", "visual_shader_node");
}
///////////////////
void VSGraphNode::_draw_port(int p_slot_index, Point2i p_pos, bool p_left, const Color &p_color, const Color &p_rim_color) {
Ref<Texture2D> port_icon = p_left ? get_slot_custom_icon_left(p_slot_index) : get_slot_custom_icon_right(p_slot_index);
Point2 icon_offset;
if (!port_icon.is_valid()) {
port_icon = get_theme_icon(SNAME("port"), SNAME("GraphNode"));
}
icon_offset = -port_icon->get_size() * 0.5;
// Draw "shadow"/outline in the connection rim color.
draw_texture_rect(port_icon, Rect2(p_pos + icon_offset - Size2(2, 2), port_icon->get_size() + Size2(4, 4)), false, p_rim_color);
draw_texture(port_icon, p_pos + icon_offset, p_color);
}
void VSGraphNode::draw_port(int p_slot_index, Point2i p_pos, bool p_left, const Color &p_color) {
Color rim_color = get_theme_color(SNAME("connection_rim_color"), SNAME("GraphEdit"));
_draw_port(p_slot_index, p_pos, p_left, p_color, rim_color);
}
///////////////////
void VSRerouteNode::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_READY: {
connect(SceneStringName(mouse_entered), callable_mp(this, &VSRerouteNode::_on_mouse_entered));
connect(SceneStringName(mouse_exited), callable_mp(this, &VSRerouteNode::_on_mouse_exited));
} break;
case NOTIFICATION_DRAW: {
Vector2 offset = Vector2(0, -16 * EDSCALE);
Color drag_bg_color = get_theme_color(SNAME("drag_background"), SNAME("VSRerouteNode"));
draw_circle(get_size() * 0.5 + offset, 16 * EDSCALE, Color(drag_bg_color, selected ? 1 : icon_opacity), true, -1, true);
Ref<Texture2D> icon = get_editor_theme_icon(SNAME("ToolMove"));
Point2 icon_offset = -icon->get_size() * 0.5 + get_size() * 0.5 + offset;
draw_texture(icon, icon_offset, Color(1, 1, 1, selected ? 1 : icon_opacity));
} break;
}
}
void VSRerouteNode::draw_port(int p_slot_index, Point2i p_pos, bool p_left, const Color &p_color) {
Color rim_color = selected ? get_theme_color("selected_rim_color", "VSRerouteNode") : get_theme_color("connection_rim_color", "GraphEdit");
_draw_port(p_slot_index, p_pos, p_left, p_color, rim_color);
}
VSRerouteNode::VSRerouteNode() {
Label *title_lbl = Object::cast_to<Label>(get_titlebar_hbox()->get_child(0));
title_lbl->hide();
const Size2 size = Size2(32, 32) * EDSCALE;
print_line("VSRerouteNode size: " + size);
Control *slot_area = memnew(Control);
slot_area->set_custom_minimum_size(size);
slot_area->set_mouse_filter(Control::MOUSE_FILTER_IGNORE);
add_child(slot_area);
// Lay the input and output ports on top of each other to create the illusion of a single port.
add_theme_constant_override("port_h_offset", size.width / 2);
}
void VSRerouteNode::set_icon_opacity(float p_opacity) {
icon_opacity = p_opacity;
queue_redraw();
}
void VSRerouteNode::_on_mouse_entered() {
Ref<Tween> tween = create_tween();
tween->tween_method(callable_mp(this, &VSRerouteNode::set_icon_opacity), 0.0, 1.0, FADE_ANIMATION_LENGTH_SEC);
}
void VSRerouteNode::_on_mouse_exited() {
Ref<Tween> tween = create_tween();
tween->tween_method(callable_mp(this, &VSRerouteNode::set_icon_opacity), 1.0, 0.0, FADE_ANIMATION_LENGTH_SEC);
}
///////////////////
VisualShaderGraphPlugin::VisualShaderGraphPlugin() {
vs_msdf_fonts_theme.instantiate();
}
void VisualShaderGraphPlugin::_bind_methods() {
ClassDB::bind_method("add_node", &VisualShaderGraphPlugin::add_node);
ClassDB::bind_method("remove_node", &VisualShaderGraphPlugin::remove_node);
ClassDB::bind_method("connect_nodes", &VisualShaderGraphPlugin::connect_nodes);
ClassDB::bind_method("disconnect_nodes", &VisualShaderGraphPlugin::disconnect_nodes);
ClassDB::bind_method("set_node_position", &VisualShaderGraphPlugin::set_node_position);
ClassDB::bind_method("update_node", &VisualShaderGraphPlugin::update_node);
ClassDB::bind_method("update_node_deferred", &VisualShaderGraphPlugin::update_node_deferred);
ClassDB::bind_method("set_input_port_default_value", &VisualShaderGraphPlugin::set_input_port_default_value);
ClassDB::bind_method("set_parameter_name", &VisualShaderGraphPlugin::set_parameter_name);
ClassDB::bind_method("set_expression", &VisualShaderGraphPlugin::set_expression);
ClassDB::bind_method("update_curve", &VisualShaderGraphPlugin::update_curve);
ClassDB::bind_method("update_curve_xyz", &VisualShaderGraphPlugin::update_curve_xyz);
ClassDB::bind_method(D_METHOD("attach_node_to_frame", "type", "id", "frame"), &VisualShaderGraphPlugin::attach_node_to_frame);
ClassDB::bind_method(D_METHOD("detach_node_from_frame", "type", "id"), &VisualShaderGraphPlugin::detach_node_from_frame);
ClassDB::bind_method(D_METHOD("set_frame_color_enabled", "type", "id", "enabled"), &VisualShaderGraphPlugin::set_frame_color_enabled);
ClassDB::bind_method(D_METHOD("set_frame_color", "type", "id", "color"), &VisualShaderGraphPlugin::set_frame_color);
ClassDB::bind_method(D_METHOD("set_frame_autoshrink_enabled", "type", "id", "enabled"), &VisualShaderGraphPlugin::set_frame_autoshrink_enabled);
}
void VisualShaderGraphPlugin::set_editor(VisualShaderEditor *p_editor) {
editor = p_editor;
}
void VisualShaderGraphPlugin::register_shader(VisualShader *p_shader) {
visual_shader = Ref<VisualShader>(p_shader);
}
void VisualShaderGraphPlugin::set_connections(const List<VisualShader::Connection> &p_connections) {
connections = p_connections;
}
void VisualShaderGraphPlugin::show_port_preview(VisualShader::Type p_type, int p_node_id, int p_port_id, bool p_is_valid) {
if (visual_shader->get_shader_type() == p_type && links.has(p_node_id) && links[p_node_id].output_ports.has(p_port_id)) {
Link &link = links[p_node_id];
for (const KeyValue<int, Port> &E : link.output_ports) {
if (E.value.preview_button != nullptr) {
E.value.preview_button->set_pressed(false);
}
}
bool is_dirty = link.preview_pos < 0;
if (!is_dirty && link.preview_visible && link.preview_box != nullptr) {
link.graph_element->remove_child(link.preview_box);
memdelete(link.preview_box);
link.preview_box = nullptr;
link.graph_element->reset_size();
link.preview_visible = false;
}
if (p_port_id != -1 && link.output_ports[p_port_id].preview_button != nullptr) {
if (is_dirty) {
link.preview_pos = link.graph_element->get_child_count();
}
VBoxContainer *vbox = memnew(VBoxContainer);
link.graph_element->add_child(vbox);
link.graph_element->move_child(vbox, link.preview_pos);
GraphNode *graph_node = Object::cast_to<GraphNode>(link.graph_element);
if (graph_node) {
graph_node->set_slot_draw_stylebox(vbox->get_index(false), false);
}
Control *offset = memnew(Control);
offset->set_custom_minimum_size(Size2(0, 5 * EDSCALE));
vbox->add_child(offset);
VisualShaderNodePortPreview *port_preview = memnew(VisualShaderNodePortPreview);
port_preview->setup(visual_shader, visual_shader->get_shader_type(), p_node_id, p_port_id, p_is_valid);
port_preview->set_h_size_flags(Control::SIZE_SHRINK_CENTER);
vbox->add_child(port_preview);
link.preview_visible = true;
link.preview_box = vbox;
link.output_ports[p_port_id].preview_button->set_pressed(true);
}
}
}
void VisualShaderGraphPlugin::update_node_deferred(VisualShader::Type p_type, int p_node_id) {
callable_mp(this, &VisualShaderGraphPlugin::update_node).call_deferred(p_type, p_node_id);
}
void VisualShaderGraphPlugin::update_node(VisualShader::Type p_type, int p_node_id) {
if (p_type != visual_shader->get_shader_type() || !links.has(p_node_id)) {
return;
}
remove_node(p_type, p_node_id, true);
add_node(p_type, p_node_id, true, true);
// TODO: Restore focus here?
}
void VisualShaderGraphPlugin::set_input_port_default_value(VisualShader::Type p_type, int p_node_id, int p_port_id, const Variant &p_value) {
if (p_type != visual_shader->get_shader_type() || !links.has(p_node_id)) {
return;
}
Button *button = links[p_node_id].input_ports[p_port_id].default_input_button;
switch (p_value.get_type()) {
case Variant::COLOR: {
button->set_custom_minimum_size(Size2(30, 0) * EDSCALE);
Callable ce = callable_mp(editor, &VisualShaderEditor::_draw_color_over_button);
if (!button->is_connected(SceneStringName(draw), ce)) {
button->connect(SceneStringName(draw), ce.bind(button, p_value));
}
} break;
case Variant::BOOL: {
button->set_text(((bool)p_value) ? "true" : "false");
} break;
case Variant::INT:
case Variant::FLOAT: {
button->set_text(String::num(p_value, 4));
} break;
case Variant::VECTOR2: {
Vector2 v = p_value;
button->set_text(String::num(v.x, 3) + "," + String::num(v.y, 3));
} break;
case Variant::VECTOR3: {
Vector3 v = p_value;
button->set_text(String::num(v.x, 3) + "," + String::num(v.y, 3) + "," + String::num(v.z, 3));
} break;
case Variant::VECTOR4: {
Vector4 v = p_value;
button->set_text(String::num(v.x, 3) + "," + String::num(v.y, 3) + "," + String::num(v.z, 3) + "," + String::num(v.w, 3));
} break;
default: {
}
}
}
void VisualShaderGraphPlugin::set_parameter_name(VisualShader::Type p_type, int p_node_id, const String &p_name) {
if (visual_shader->get_shader_type() == p_type && links.has(p_node_id) && links[p_node_id].parameter_name != nullptr) {
links[p_node_id].parameter_name->set_text(p_name);
}
}
void VisualShaderGraphPlugin::update_curve(int p_node_id) {
if (links.has(p_node_id) && links[p_node_id].curve_editors[0]) {
Ref<VisualShaderNodeCurveTexture> tex = Object::cast_to<VisualShaderNodeCurveTexture>(links[p_node_id].visual_node);
ERR_FAIL_COND(!tex.is_valid());
if (tex->get_texture().is_valid()) {
links[p_node_id].curve_editors[0]->set_curve(tex->get_texture()->get_curve());
}
tex->emit_changed();
}
}
void VisualShaderGraphPlugin::update_curve_xyz(int p_node_id) {
if (links.has(p_node_id) && links[p_node_id].curve_editors[0] && links[p_node_id].curve_editors[1] && links[p_node_id].curve_editors[2]) {
Ref<VisualShaderNodeCurveXYZTexture> tex = Object::cast_to<VisualShaderNodeCurveXYZTexture>(links[p_node_id].visual_node);
ERR_FAIL_COND(!tex.is_valid());
if (tex->get_texture().is_valid()) {
links[p_node_id].curve_editors[0]->set_curve(tex->get_texture()->get_curve_x());
links[p_node_id].curve_editors[1]->set_curve(tex->get_texture()->get_curve_y());
links[p_node_id].curve_editors[2]->set_curve(tex->get_texture()->get_curve_z());
}
tex->emit_changed();
}
}
int VisualShaderGraphPlugin::get_constant_index(float p_constant) const {
for (int i = 0; i < MAX_FLOAT_CONST_DEFS; i++) {
if (Math::is_equal_approx(p_constant, float_constant_defs[i].value)) {
return i + 1;
}
}
return 0;
}
void VisualShaderGraphPlugin::set_expression(VisualShader::Type p_type, int p_node_id, const String &p_expression) {
if (p_type != visual_shader->get_shader_type() || !links.has(p_node_id) || !links[p_node_id].expression_edit) {
return;
}
links[p_node_id].expression_edit->set_text(p_expression);
}
void VisualShaderGraphPlugin::attach_node_to_frame(VisualShader::Type p_type, int p_node_id, int p_frame_id) {
if (p_type != visual_shader->get_shader_type() || !links.has(p_node_id) || !links.has(p_frame_id)) {
return;
}
GraphEdit *graph = editor->graph;
if (!graph) {
return;
}
// Get the hint label and hide it before attaching the node to prevent resizing issues with the frame.
GraphFrame *frame = Object::cast_to<GraphFrame>(links[p_frame_id].graph_element);
ERR_FAIL_COND_MSG(!frame, "VisualShader node to attach to is not a frame node.");
Label *frame_hint_label = Object::cast_to<Label>(frame->get_child(0, false));
if (frame_hint_label) {
frame_hint_label->hide();
}
graph->attach_graph_element_to_frame(itos(p_node_id), itos(p_frame_id));
}
void VisualShaderGraphPlugin::detach_node_from_frame(VisualShader::Type p_type, int p_node_id) {
GraphEdit *graph = editor->graph;
if (!graph) {
return;
}
const StringName node_name = itos(p_node_id);
GraphFrame *frame = graph->get_element_frame(node_name);
if (!frame) {
return;
}
graph->detach_graph_element_from_frame(node_name);
bool no_more_frames_attached = graph->get_attached_nodes_of_frame(frame->get_name()).is_empty();
if (no_more_frames_attached) {
// Get the hint label and show it.
Label *frame_hint_label = Object::cast_to<Label>(frame->get_child(0, false));
ERR_FAIL_COND_MSG(!frame_hint_label, "Frame node does not have a hint label.");
frame_hint_label->show();
}
}
void VisualShaderGraphPlugin::set_frame_color_enabled(VisualShader::Type p_type, int p_node_id, bool p_enable) {
GraphEdit *graph = editor->graph;
ERR_FAIL_COND(!graph);
const NodePath node_name = itos(p_node_id);
GraphFrame *frame = Object::cast_to<GraphFrame>(graph->get_node_or_null(node_name));
if (!frame) {
return;
}
frame->set_tint_color_enabled(p_enable);
}
void VisualShaderGraphPlugin::set_frame_color(VisualShader::Type p_type, int p_node_id, const Color &p_color) {
GraphEdit *graph = editor->graph;
ERR_FAIL_COND(!graph);
const NodePath node_name = itos(p_node_id);
GraphFrame *frame = Object::cast_to<GraphFrame>(graph->get_node_or_null(node_name));
if (!frame) {
return;
}
frame->set_tint_color(p_color);
}
void VisualShaderGraphPlugin::set_frame_autoshrink_enabled(VisualShader::Type p_type, int p_node_id, bool p_enable) {
GraphEdit *graph = editor->graph;
ERR_FAIL_COND(!graph);
const NodePath node_name = itos(p_node_id);
GraphFrame *frame = Object::cast_to<GraphFrame>(graph->get_node_or_null(node_name));
if (!frame) {
return;
}
frame->set_autoshrink_enabled(p_enable);
}
void VisualShaderGraphPlugin::update_reroute_nodes() {
for (const KeyValue<int, Link> &E : links) {
Ref<VisualShaderNodeReroute> reroute_node = Object::cast_to<VisualShaderNodeReroute>(E.value.visual_node);
if (reroute_node.is_valid()) {
update_node(visual_shader->get_shader_type(), E.key);
}
}
}
Ref<Script> VisualShaderGraphPlugin::get_node_script(int p_node_id) const {
if (!links.has(p_node_id)) {
return Ref<Script>();
}
Ref<VisualShaderNodeCustom> custom = Ref<VisualShaderNodeCustom>(links[p_node_id].visual_node);
if (custom.is_valid()) {
return custom->get_script();
}
return Ref<Script>();
}
void VisualShaderGraphPlugin::register_default_input_button(int p_node_id, int p_port_id, Button *p_button) {
links[p_node_id].input_ports.insert(p_port_id, { p_button });
}
void VisualShaderGraphPlugin::register_expression_edit(int p_node_id, CodeEdit *p_expression_edit) {
links[p_node_id].expression_edit = p_expression_edit;
}
void VisualShaderGraphPlugin::register_curve_editor(int p_node_id, int p_index, CurveEditor *p_curve_editor) {
links[p_node_id].curve_editors[p_index] = p_curve_editor;
}
void VisualShaderGraphPlugin::update_parameter_refs() {
for (KeyValue<int, Link> &E : links) {
VisualShaderNodeParameterRef *ref = Object::cast_to<VisualShaderNodeParameterRef>(E.value.visual_node);
if (ref) {
remove_node(E.value.type, E.key, true);
add_node(E.value.type, E.key, true, true);
}
}
}
VisualShader::Type VisualShaderGraphPlugin::get_shader_type() const {
return visual_shader->get_shader_type();
}
// Only updates the linked frames of the given node, not the node itself (in case it's a frame node).
void VisualShaderGraphPlugin::update_frames(VisualShader::Type p_type, int p_node) {
GraphEdit *graph = editor->graph;
if (!graph) {
return;
}
Ref<VisualShaderNode> vsnode = visual_shader->get_node(p_type, p_node);
if (!vsnode.is_valid()) {
WARN_PRINT("Update linked frames: Node not found.");
return;
}
int frame_vsnode_id = vsnode->get_frame();
if (frame_vsnode_id == -1) {
return;
}
Ref<VisualShaderNodeFrame> frame_node = visual_shader->get_node(p_type, frame_vsnode_id);
if (!frame_node.is_valid() || !links.has(frame_vsnode_id)) {
return;
}
GraphFrame *frame = Object::cast_to<GraphFrame>(links[frame_vsnode_id].graph_element);
if (!frame) {
return;
}
// Update the frame node recursively.
editor->graph->_update_graph_frame(frame);
}
void VisualShaderGraphPlugin::set_node_position(VisualShader::Type p_type, int p_id, const Vector2 &p_position) {
if (visual_shader->get_shader_type() == p_type && links.has(p_id)) {
links[p_id].graph_element->set_position_offset(p_position);
}
}
bool VisualShaderGraphPlugin::is_preview_visible(int p_id) const {
return links[p_id].preview_visible;
}
void VisualShaderGraphPlugin::clear_links() {
links.clear();
}
void VisualShaderGraphPlugin::register_link(VisualShader::Type p_type, int p_id, VisualShaderNode *p_visual_node, GraphElement *p_graph_element) {
links.insert(p_id, { p_type, p_visual_node, p_graph_element, p_visual_node->get_output_port_for_preview() != -1, -1, HashMap<int, InputPort>(), HashMap<int, Port>(), nullptr, nullptr, nullptr, { nullptr, nullptr, nullptr } });
}
void VisualShaderGraphPlugin::register_output_port(int p_node_id, int p_port, TextureButton *p_button) {
links[p_node_id].output_ports.insert(p_port, { p_button });
}
void VisualShaderGraphPlugin::register_parameter_name(int p_node_id, LineEdit *p_parameter_name) {
links[p_node_id].parameter_name = p_parameter_name;
}
void VisualShaderGraphPlugin::update_theme() {
vector_expanded_color[0] = editor->get_theme_color(SNAME("axis_x_color"), EditorStringName(Editor)); // red
vector_expanded_color[1] = editor->get_theme_color(SNAME("axis_y_color"), EditorStringName(Editor)); // green
vector_expanded_color[2] = editor->get_theme_color(SNAME("axis_z_color"), EditorStringName(Editor)); // blue
vector_expanded_color[3] = editor->get_theme_color(SNAME("axis_w_color"), EditorStringName(Editor)); // alpha
Ref<Font> label_font = EditorNode::get_singleton()->get_editor_theme()->get_font("main_msdf", EditorStringName(EditorFonts));
Ref<Font> label_bold_font = EditorNode::get_singleton()->get_editor_theme()->get_font("main_bold_msdf", EditorStringName(EditorFonts));
vs_msdf_fonts_theme->set_font(SceneStringName(font), "Label", label_font);
vs_msdf_fonts_theme->set_font(SceneStringName(font), "GraphNodeTitleLabel", label_bold_font);
vs_msdf_fonts_theme->set_font(SceneStringName(font), "LineEdit", label_font);
vs_msdf_fonts_theme->set_font(SceneStringName(font), "Button", label_font);
}
bool VisualShaderGraphPlugin::is_node_has_parameter_instances_relatively(VisualShader::Type p_type, int p_node) const {
bool result = false;
Ref<VisualShaderNodeParameter> parameter_node = Object::cast_to<VisualShaderNodeParameter>(visual_shader->get_node_unchecked(p_type, p_node).ptr());
if (parameter_node.is_valid()) {
if (parameter_node->get_qualifier() == VisualShaderNodeParameter::QUAL_INSTANCE) {
return true;
}
}
const LocalVector<int> &prev_connected_nodes = visual_shader->get_prev_connected_nodes(p_type, p_node);
for (const int &E : prev_connected_nodes) {
result = is_node_has_parameter_instances_relatively(p_type, E);
if (result) {
break;
}
}
return result;
}
void VisualShaderGraphPlugin::add_node(VisualShader::Type p_type, int p_id, bool p_just_update, bool p_update_frames) {
if (!visual_shader.is_valid() || p_type != visual_shader->get_shader_type()) {
return;
}
GraphEdit *graph = editor->graph;
if (!graph) {
return;
}
VisualShaderGraphPlugin *graph_plugin = editor->get_graph_plugin();
if (!graph_plugin) {
return;
}
Shader::Mode mode = visual_shader->get_mode();
Control *offset;
const Color type_color[] = {
EDITOR_GET("editors/visual_editors/connection_colors/scalar_color"),
EDITOR_GET("editors/visual_editors/connection_colors/scalar_color"),
EDITOR_GET("editors/visual_editors/connection_colors/scalar_color"),
EDITOR_GET("editors/visual_editors/connection_colors/vector2_color"),
EDITOR_GET("editors/visual_editors/connection_colors/vector3_color"),
EDITOR_GET("editors/visual_editors/connection_colors/vector4_color"),
EDITOR_GET("editors/visual_editors/connection_colors/boolean_color"),
EDITOR_GET("editors/visual_editors/connection_colors/transform_color"),
EDITOR_GET("editors/visual_editors/connection_colors/sampler_color"),
};
// Keep in sync with VisualShaderNode::Category.
const Color category_color[VisualShaderNode::Category::CATEGORY_MAX] = {
Color(0.0, 0.0, 0.0), // None (default, not used)
EDITOR_GET("editors/visual_editors/category_colors/output_color"),
EDITOR_GET("editors/visual_editors/category_colors/color_color"),
EDITOR_GET("editors/visual_editors/category_colors/conditional_color"),
EDITOR_GET("editors/visual_editors/category_colors/input_color"),
EDITOR_GET("editors/visual_editors/category_colors/scalar_color"),
EDITOR_GET("editors/visual_editors/category_colors/textures_color"),
EDITOR_GET("editors/visual_editors/category_colors/transform_color"),
EDITOR_GET("editors/visual_editors/category_colors/utility_color"),
EDITOR_GET("editors/visual_editors/category_colors/vector_color"),
EDITOR_GET("editors/visual_editors/category_colors/special_color"),
EDITOR_GET("editors/visual_editors/category_colors/particle_color"),
};
static const String vector_expanded_name[4] = { "red", "green", "blue", "alpha" };
Ref<VisualShaderNode> vsnode = visual_shader->get_node(p_type, p_id);
ERR_FAIL_COND(vsnode.is_null());
Ref<VisualShaderNodeResizableBase> resizable_node = vsnode;
bool is_resizable = resizable_node.is_valid();
Size2 size = Size2(0, 0);
Ref<VisualShaderNodeGroupBase> group_node = vsnode;
bool is_group = group_node.is_valid();
Ref<VisualShaderNodeFrame> frame_node = vsnode;
bool is_frame = frame_node.is_valid();
Ref<VisualShaderNodeExpression> expression_node = group_node;
bool is_expression = expression_node.is_valid();
String expression = "";
Ref<VisualShaderNodeReroute> reroute_node = vsnode;
bool is_reroute = reroute_node.is_valid();
Ref<VisualShaderNodeCustom> custom_node = vsnode;
if (custom_node.is_valid()) {
custom_node->_set_initialized(true);
}
GraphElement *node;
if (is_frame) {
GraphFrame *frame = memnew(GraphFrame);
frame->set_title(vsnode->get_caption());
node = frame;
} else if (is_reroute) {
VSRerouteNode *reroute_gnode = memnew(VSRerouteNode);
reroute_gnode->set_ignore_invalid_connection_type(true);
node = reroute_gnode;
} else {
VSGraphNode *gnode = memnew(VSGraphNode);
gnode->set_title(vsnode->get_caption());
node = gnode;
}
node->set_name(itos(p_id));
// All nodes are closable except the output node.
if (p_id >= 2) {
vsnode->set_deletable(true);
node->connect("delete_request", callable_mp(editor, &VisualShaderEditor::_delete_node_request).bind(p_type, p_id), CONNECT_DEFERRED);
}
graph->add_child(node);
node->set_theme(vs_msdf_fonts_theme);
// Set the node's titlebar color based on its category.
if (vsnode->get_category() != VisualShaderNode::CATEGORY_NONE && !is_frame && !is_reroute) {
Ref<StyleBoxFlat> sb_colored = editor->get_theme_stylebox("titlebar", "GraphNode")->duplicate();
sb_colored->set_bg_color(category_color[vsnode->get_category()]);
node->add_theme_style_override("titlebar", sb_colored);
Ref<StyleBoxFlat> sb_colored_selected = editor->get_theme_stylebox("titlebar_selected", "GraphNode")->duplicate();
sb_colored_selected->set_bg_color(category_color[vsnode->get_category()].lightened(0.2));
node->add_theme_style_override("titlebar_selected", sb_colored_selected);
}
if (p_just_update) {
Link &link = links[p_id];
link.visual_node = vsnode.ptr();
link.graph_element = node;
link.preview_box = nullptr;
link.preview_pos = -1;
link.output_ports.clear();
link.input_ports.clear();
} else {
register_link(p_type, p_id, vsnode.ptr(), node);
}
if (is_resizable) {
size = resizable_node->get_size();
node->set_resizable(true);
node->connect("resize_end", callable_mp(editor, &VisualShaderEditor::_node_resized).bind((int)p_type, p_id));
node->set_size(size);
// node->call_deferred(SNAME("set_size"), size);
// editor->call_deferred(SNAME("_set_node_size"), (int)p_type, p_id, size);
}
if (is_expression) {
expression = expression_node->get_expression();
}
node->set_position_offset(visual_shader->get_node_position(p_type, p_id));
node->connect("dragged", callable_mp(editor, &VisualShaderEditor::_node_dragged).bind(p_id));
Control *custom_editor = nullptr;
int port_offset = 1;
if (p_update_frames) {
if (vsnode->get_frame() > -1) {
graph->attach_graph_element_to_frame(itos(p_id), itos(vsnode->get_frame()));
} else {
graph->detach_graph_element_from_frame(itos(p_id));
}
}
if (is_frame) {
GraphFrame *graph_frame = Object::cast_to<GraphFrame>(node);
ERR_FAIL_NULL(graph_frame);
graph_frame->set_tint_color_enabled(frame_node->is_tint_color_enabled());
graph_frame->set_tint_color(frame_node->get_tint_color());
// Add hint label.
Label *frame_hint_label = memnew(Label);
node->add_child(frame_hint_label);
frame_hint_label->set_horizontal_alignment(HorizontalAlignment::HORIZONTAL_ALIGNMENT_CENTER);
frame_hint_label->set_vertical_alignment(VerticalAlignment::VERTICAL_ALIGNMENT_CENTER);
frame_hint_label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
frame_hint_label->set_v_size_flags(Control::SIZE_EXPAND_FILL);
frame_hint_label->set_text(TTR("Drag and drop nodes here to attach them."));
frame_hint_label->set_modulate(Color(1.0, 1.0, 1.0, 0.3));
graph_frame->set_autoshrink_enabled(frame_node->is_autoshrink_enabled());
if (frame_node->get_attached_nodes().is_empty()) {
frame_hint_label->show();
} else {
frame_hint_label->hide();
}
// Attach all nodes.
if (p_update_frames && frame_node->get_attached_nodes().size() > 0) {
for (const int &id : frame_node->get_attached_nodes()) {
graph->attach_graph_element_to_frame(itos(id), node->get_name());
}
}
// We should be done here.
return;
}
if (!is_reroute) {
Control *content_offset = memnew(Control);
content_offset->set_custom_minimum_size(Size2(0, 5 * EDSCALE));
node->add_child(content_offset);
}
if (is_group) {
port_offset += 1;
}
// Set the minimum width of a node based on the preview size to avoid a resize when toggling the preview.
Ref<StyleBoxFlat> graph_node_stylebox = graph->get_theme_stylebox(SceneStringName(panel), "GraphNode");
int port_preview_size = EDITOR_GET("editors/visual_editors/visual_shader/port_preview_size");
if (!is_frame && !is_reroute) {
node->set_custom_minimum_size(Size2((Math::ceil(graph_node_stylebox->get_minimum_size().width) + port_preview_size) * EDSCALE, 0));
}
Ref<VisualShaderNodeParticleEmit> emit = vsnode;
if (emit.is_valid()) {
node->set_custom_minimum_size(Size2(200 * EDSCALE, 0));
}
Ref<VisualShaderNodeParameterRef> parameter_ref = vsnode;
if (parameter_ref.is_valid()) {
parameter_ref->set_shader_rid(visual_shader->get_rid());
parameter_ref->update_parameter_type();
}
Ref<VisualShaderNodeVarying> varying = vsnode;
if (varying.is_valid()) {
varying->set_shader_rid(visual_shader->get_rid());
}
Ref<VisualShaderNodeParameter> parameter = vsnode;
HBoxContainer *hb = nullptr;
if (parameter.is_valid()) {
LineEdit *parameter_name = memnew(LineEdit);
register_parameter_name(p_id, parameter_name);
parameter_name->set_h_size_flags(Control::SIZE_EXPAND_FILL);
parameter_name->set_text(parameter->get_parameter_name());
parameter_name->connect("text_submitted", callable_mp(editor, &VisualShaderEditor::_parameter_line_edit_changed).bind(p_id));
parameter_name->connect(SceneStringName(focus_exited), callable_mp(editor, &VisualShaderEditor::_parameter_line_edit_focus_out).bind(parameter_name, p_id));
if (vsnode->get_output_port_count() == 1 && vsnode->get_output_port_name(0) == "") {
hb = memnew(HBoxContainer);
hb->add_child(parameter_name);
node->add_child(hb);
} else {
node->add_child(parameter_name);
}
port_offset++;
}
for (int i = 0; i < editor->plugins.size(); i++) {
vsnode->set_meta("id", p_id);
vsnode->set_meta("shader_type", (int)p_type);
custom_editor = editor->plugins.write[i]->create_editor(visual_shader, vsnode);
vsnode->remove_meta("id");
vsnode->remove_meta("shader_type");
if (custom_editor) {
if (vsnode->is_show_prop_names()) {
custom_editor->call_deferred(SNAME("_show_prop_names"), true);
}
break;
}
}
if (custom_node.is_valid()) {
bool first = true;
VBoxContainer *vbox = nullptr;
int i = 0;
for (List<VisualShaderNodeCustom::DropDownListProperty>::ConstIterator itr = custom_node->dp_props.begin(); itr != custom_node->dp_props.end(); ++itr, ++i) {
const VisualShaderNodeCustom::DropDownListProperty &dp = *itr;
if (first) {
first = false;
vbox = memnew(VBoxContainer);
node->add_child(vbox);
port_offset++;
}
HBoxContainer *hbox = memnew(HBoxContainer);
vbox->add_child(hbox);
hbox->set_h_size_flags(Control::SIZE_EXPAND_FILL);
String prop_name = dp.name.strip_edges();
if (!prop_name.is_empty()) {
Label *label = memnew(Label);
label->set_auto_translate_mode(Node::AUTO_TRANSLATE_MODE_DISABLED); // TODO: Implement proper translation switch.
label->set_text(prop_name + ":");
hbox->add_child(label);
}
OptionButton *op = memnew(OptionButton);
hbox->add_child(op);
op->set_h_size_flags(Control::SIZE_EXPAND_FILL);
op->connect(SceneStringName(item_selected), callable_mp(editor, &VisualShaderEditor::_set_custom_node_option).bind(p_id, i), CONNECT_DEFERRED);
for (const String &s : dp.options) {
op->add_item(s);
}
if (custom_node->dp_selected_cache.has(i)) {
op->select(custom_node->dp_selected_cache[i]);
} else {
op->select(0);
}
}
}
Ref<VisualShaderNodeCurveTexture> curve = vsnode;
Ref<VisualShaderNodeCurveXYZTexture> curve_xyz = vsnode;
bool is_curve = curve.is_valid() || curve_xyz.is_valid();
if (is_curve) {
hb = memnew(HBoxContainer);
node->add_child(hb);
}
if (curve.is_valid()) {
custom_editor->set_h_size_flags(Control::SIZE_EXPAND_FILL);
if (curve->get_texture().is_valid()) {
curve->get_texture()->connect_changed(callable_mp(graph_plugin, &VisualShaderGraphPlugin::update_curve).bind(p_id));
}
CurveEditor *curve_editor = memnew(CurveEditor);
node->add_child(curve_editor);
register_curve_editor(p_id, 0, curve_editor);
curve_editor->set_custom_minimum_size(Size2(300, 0));
curve_editor->set_h_size_flags(Control::SIZE_EXPAND_FILL);
if (curve->get_texture().is_valid()) {
curve_editor->set_curve(curve->get_texture()->get_curve());
}
}
if (curve_xyz.is_valid()) {
custom_editor->set_h_size_flags(Control::SIZE_EXPAND_FILL);
if (curve_xyz->get_texture().is_valid()) {
curve_xyz->get_texture()->connect_changed(callable_mp(graph_plugin, &VisualShaderGraphPlugin::update_curve_xyz).bind(p_id));
}
CurveEditor *curve_editor_x = memnew(CurveEditor);
node->add_child(curve_editor_x);
register_curve_editor(p_id, 0, curve_editor_x);
curve_editor_x->set_custom_minimum_size(Size2(300, 0));
curve_editor_x->set_h_size_flags(Control::SIZE_EXPAND_FILL);
if (curve_xyz->get_texture().is_valid()) {
curve_editor_x->set_curve(curve_xyz->get_texture()->get_curve_x());
}
CurveEditor *curve_editor_y = memnew(CurveEditor);
node->add_child(curve_editor_y);
register_curve_editor(p_id, 1, curve_editor_y);
curve_editor_y->set_custom_minimum_size(Size2(300, 0));
curve_editor_y->set_h_size_flags(Control::SIZE_EXPAND_FILL);
if (curve_xyz->get_texture().is_valid()) {
curve_editor_y->set_curve(curve_xyz->get_texture()->get_curve_y());
}
CurveEditor *curve_editor_z = memnew(CurveEditor);
node->add_child(curve_editor_z);
register_curve_editor(p_id, 2, curve_editor_z);
curve_editor_z->set_custom_minimum_size(Size2(300, 0));
curve_editor_z->set_h_size_flags(Control::SIZE_EXPAND_FILL);
if (curve_xyz->get_texture().is_valid()) {
curve_editor_z->set_curve(curve_xyz->get_texture()->get_curve_z());
}
}
if (custom_editor) {
if (is_curve || (hb == nullptr && !vsnode->is_use_prop_slots() && (vsnode->get_output_port_count() == 0 || vsnode->get_output_port_name(0) == "") && (vsnode->get_input_port_count() == 0 || vsnode->get_input_port_name(0) == ""))) {
// Will be embedded in first port.
} else {
port_offset++;
node->add_child(custom_editor);
custom_editor = nullptr;
}
}
if (is_group) {
if (group_node->is_editable()) {
HBoxContainer *hb2 = memnew(HBoxContainer);
String input_port_name = "input" + itos(group_node->get_free_input_port_id());
String output_port_name = "output" + itos(group_node->get_free_output_port_id());
for (int i = 0; i < MAX(vsnode->get_input_port_count(), vsnode->get_output_port_count()); i++) {
if (i < vsnode->get_input_port_count()) {
if (input_port_name == vsnode->get_input_port_name(i)) {
input_port_name = "_" + input_port_name;
}
}
if (i < vsnode->get_output_port_count()) {
if (output_port_name == vsnode->get_output_port_name(i)) {
output_port_name = "_" + output_port_name;
}
}
}
Button *add_input_btn = memnew(Button);
add_input_btn->set_text(TTR("Add Input"));
add_input_btn->connect(SceneStringName(pressed), callable_mp(editor, &VisualShaderEditor::_add_input_port).bind(p_id, group_node->get_free_input_port_id(), VisualShaderNode::PORT_TYPE_VECTOR_3D, input_port_name), CONNECT_DEFERRED);
hb2->add_child(add_input_btn);
hb2->add_spacer();
Button *add_output_btn = memnew(Button);
add_output_btn->set_text(TTR("Add Output"));
add_output_btn->connect(SceneStringName(pressed), callable_mp(editor, &VisualShaderEditor::_add_output_port).bind(p_id, group_node->get_free_output_port_id(), VisualShaderNode::PORT_TYPE_VECTOR_3D, output_port_name), CONNECT_DEFERRED);
hb2->add_child(add_output_btn);
node->add_child(hb2);
}
}
int output_port_count = 0;