virtualx-engine/editor/plugins/shader_graph_editor_plugin.cpp

/*************************************************************************/
/*  shader_graph_editor_plugin.cpp                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 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.                */
/*************************************************************************/
#include "shader_graph_editor_plugin.h"

#include "canvas_item_editor_plugin.h"
#include "os/keyboard.h"
#include "scene/gui/check_box.h"
#include "scene/gui/menu_button.h"
#include "scene/gui/panel.h"
#include "spatial_editor_plugin.h"

void GraphColorRampEdit::_input_event(const InputEvent &p_event) {

	if (p_event.type == InputEvent::KEY && p_event.key.pressed && p_event.key.scancode == KEY_DELETE && grabbed != -1) {

		points.remove(grabbed);
		grabbed = -1;
		update();
		emit_signal("ramp_changed");
		accept_event();
	}

	if (p_event.type == InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index == 1 && p_event.mouse_button.pressed) {

		update();
		int x = p_event.mouse_button.x;
		int total_w = get_size().width - get_size().height - 3;
		if (x > total_w + 3) {

			if (grabbed == -1)
				return;
			Size2 ms = Size2(350, picker->get_combined_minimum_size().height + 10);
			picker->set_color(points[grabbed].color);
			popup->set_pos(get_global_pos() - Size2(0, ms.height));
			popup->set_size(ms);
			popup->popup();
			return;
		}

		float ofs = CLAMP(x / float(total_w), 0, 1);

		grabbed = -1;
		grabbing = true;
		int pos = -1;
		for (int i = 0; i < points.size(); i++) {

			if (ABS(x - points[i].offset * total_w) < 4) {
				grabbed = i;
			}
			if (points[i].offset < ofs)
				pos = i;
		}

		grabbed_at = ofs;
		//grab or select
		if (grabbed != -1) {
			return;
		}
		//insert

		Point p;
		p.offset = ofs;

		Point prev;
		Point next;

		if (pos == -1) {

			prev.color = Color(0, 0, 0);
			prev.offset = 0;
			if (points.size()) {
				next = points[0];
			} else {
				next.color = Color(1, 1, 1);
				next.offset = 1.0;
			}
		} else {

			if (pos == points.size() - 1) {
				next.color = Color(1, 1, 1);
				next.offset = 1.0;
			} else {
				next = points[pos + 1];
			}
			prev = points[pos];
		}

		p.color = prev.color.linear_interpolate(next.color, (p.offset - prev.offset) / (next.offset - prev.offset));

		points.push_back(p);
		points.sort();
		for (int i = 0; i < points.size(); i++) {
			if (points[i].offset == ofs) {
				grabbed = i;
				break;
			}
		}

		emit_signal("ramp_changed");
	}

	if (p_event.type == InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index == 1 && !p_event.mouse_button.pressed) {

		if (grabbing) {
			grabbing = false;
			emit_signal("ramp_changed");
		}
		update();
	}

	if (p_event.type == InputEvent::MOUSE_MOTION && grabbing) {

		int total_w = get_size().width - get_size().height - 3;

		int x = p_event.mouse_motion.x;
		float newofs = CLAMP(x / float(total_w), 0, 1);

		bool valid = true;
		for (int i = 0; i < points.size(); i++) {

			if (points[i].offset == newofs && i != grabbed) {
				valid = false;
			}
		}

		if (!valid)
			return;

		points[grabbed].offset = newofs;

		points.sort();
		for (int i = 0; i < points.size(); i++) {
			if (points[i].offset == newofs) {
				grabbed = i;
				break;
			}
		}

		emit_signal("ramp_changed");

		update();
	}
}

void GraphColorRampEdit::_notification(int p_what) {

	if (p_what == NOTIFICATION_ENTER_TREE) {
		if (!picker->is_connected("color_changed", this, "_color_changed")) {
			picker->connect("color_changed", this, "_color_changed");
		}
	}
	if (p_what == NOTIFICATION_DRAW) {

		Point prev;
		prev.offset = 0;
		prev.color = Color(0, 0, 0);

		int h = get_size().y;
		int total_w = get_size().width - get_size().height - 3;

		for (int i = -1; i < points.size(); i++) {

			Point next;
			if (i + 1 == points.size()) {
				next.color = Color(1, 1, 1);
				next.offset = 1;
			} else {
				next = points[i + 1];
			}

			if (prev.offset == next.offset) {
				prev = next;
				continue;
			}

			Vector<Vector2> points;
			Vector<Color> colors;
			points.push_back(Vector2(prev.offset * total_w, h));
			points.push_back(Vector2(prev.offset * total_w, 0));
			points.push_back(Vector2(next.offset * total_w, 0));
			points.push_back(Vector2(next.offset * total_w, h));
			colors.push_back(prev.color);
			colors.push_back(prev.color);
			colors.push_back(next.color);
			colors.push_back(next.color);
			draw_primitive(points, colors, Vector<Point2>());
			prev = next;
		}

		for (int i = 0; i < points.size(); i++) {

			Color col = i == grabbed ? Color(1, 0.0, 0.0, 0.9) : Color(1, 1, 1, 0.8);

			draw_line(Vector2(points[i].offset * total_w, 0), Vector2(points[i].offset * total_w, h - 1), Color(0, 0, 0, 0.7));
			draw_line(Vector2(points[i].offset * total_w - 1, h / 2), Vector2(points[i].offset * total_w - 1, h - 1), col);
			draw_line(Vector2(points[i].offset * total_w + 1, h / 2), Vector2(points[i].offset * total_w + 1, h - 1), col);
			draw_line(Vector2(points[i].offset * total_w - 1, h / 2), Vector2(points[i].offset * total_w + 1, h / 2), col);
			draw_line(Vector2(points[i].offset * total_w - 1, h - 1), Vector2(points[i].offset * total_w + 1, h - 1), col);
		}

		if (grabbed != -1) {

			draw_rect(Rect2(total_w + 3, 0, h, h), points[grabbed].color);
		}

		if (has_focus()) {

			draw_line(Vector2(-1, -1), Vector2(total_w + 1, -1), Color(1, 1, 1, 0.6));
			draw_line(Vector2(total_w + 1, -1), Vector2(total_w + 1, h + 1), Color(1, 1, 1, 0.6));
			draw_line(Vector2(total_w + 1, h + 1), Vector2(-1, h + 1), Color(1, 1, 1, 0.6));
			draw_line(Vector2(-1, -1), Vector2(-1, h + 1), Color(1, 1, 1, 0.6));
		}
	}
}

Size2 GraphColorRampEdit::get_minimum_size() const {

	return Vector2(0, 16);
}

void GraphColorRampEdit::_color_changed(const Color &p_color) {

	if (grabbed == -1)
		return;
	points[grabbed].color = p_color;
	update();
	emit_signal("ramp_changed");
}

void GraphColorRampEdit::set_ramp(const Vector<float> &p_offsets, const Vector<Color> &p_colors) {

	ERR_FAIL_COND(p_offsets.size() != p_colors.size());
	points.clear();
	for (int i = 0; i < p_offsets.size(); i++) {
		Point p;
		p.offset = p_offsets[i];
		p.color = p_colors[i];
		points.push_back(p);
	}

	points.sort();
	update();
}

Vector<float> GraphColorRampEdit::get_offsets() const {
	Vector<float> ret;
	for (int i = 0; i < points.size(); i++)
		ret.push_back(points[i].offset);
	return ret;
}
Vector<Color> GraphColorRampEdit::get_colors() const {

	Vector<Color> ret;
	for (int i = 0; i < points.size(); i++)
		ret.push_back(points[i].color);
	return ret;
}

void GraphColorRampEdit::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("_input_event"), &GraphColorRampEdit::_input_event);
	ObjectTypeDB::bind_method(_MD("_color_changed"), &GraphColorRampEdit::_color_changed);
	ADD_SIGNAL(MethodInfo("ramp_changed"));
}

GraphColorRampEdit::GraphColorRampEdit() {

	grabbed = -1;
	grabbing = false;
	set_focus_mode(FOCUS_ALL);

	popup = memnew(PopupPanel);
	picker = memnew(ColorPicker);
	popup->add_child(picker);
	popup->set_child_rect(picker);
	add_child(popup);
}
////////////

void GraphCurveMapEdit::_input_event(const InputEvent &p_event) {

	if (p_event.type == InputEvent::KEY && p_event.key.pressed && p_event.key.scancode == KEY_DELETE && grabbed != -1) {

		points.remove(grabbed);
		grabbed = -1;
		update();
		emit_signal("curve_changed");
		accept_event();
	}

	if (p_event.type == InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index == 1 && p_event.mouse_button.pressed) {

		update();
		Point2 p = Vector2(p_event.mouse_button.x, p_event.mouse_button.y) / get_size();
		p.y = 1.0 - p.y;
		grabbed = -1;
		grabbing = true;

		for (int i = 0; i < points.size(); i++) {

			Vector2 ps = p * get_size();
			Vector2 pt = Vector2(points[i].offset, points[i].height) * get_size();
			if (ps.distance_to(pt) < 4) {
				grabbed = i;
			}
		}

		//grab or select
		if (grabbed != -1) {
			return;
		}
		//insert

		Point np;
		np.offset = p.x;
		np.height = p.y;

		points.push_back(np);
		points.sort();
		for (int i = 0; i < points.size(); i++) {
			if (points[i].offset == p.x && points[i].height == p.y) {
				grabbed = i;
				break;
			}
		}

		emit_signal("curve_changed");
	}

	if (p_event.type == InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index == 1 && !p_event.mouse_button.pressed) {

		if (grabbing) {
			grabbing = false;
			emit_signal("curve_changed");
		}
		update();
	}

	if (p_event.type == InputEvent::MOUSE_MOTION && grabbing && grabbed != -1) {

		Point2 p = Vector2(p_event.mouse_button.x, p_event.mouse_button.y) / get_size();
		p.y = 1.0 - p.y;

		p.x = CLAMP(p.x, 0.0, 1.0);
		p.y = CLAMP(p.y, 0.0, 1.0);

		bool valid = true;

		for (int i = 0; i < points.size(); i++) {

			if (points[i].offset == p.x && points[i].height == p.y && i != grabbed) {
				valid = false;
			}
		}

		if (!valid)
			return;

		points[grabbed].offset = p.x;
		points[grabbed].height = p.y;

		points.sort();
		for (int i = 0; i < points.size(); i++) {
			if (points[i].offset == p.x && points[i].height == p.y) {
				grabbed = i;
				break;
			}
		}

		emit_signal("curve_changed");

		update();
	}
}

void GraphCurveMapEdit::_plot_curve(const Vector2 &p_a, const Vector2 &p_b, const Vector2 &p_c, const Vector2 &p_d) {

	float geometry[4][4];
	float tmp1[4][4];
	float tmp2[4][4];
	float deltas[4][4];
	double x, dx, dx2, dx3;
	double y, dy, dy2, dy3;
	double d, d2, d3;
	int lastx, lasty;
	int newx, newy;
	int ntimes;
	int i, j;

	int xmax = get_size().x;
	int ymax = get_size().y;

	/* construct the geometry matrix from the segment */
	for (i = 0; i < 4; i++) {
		geometry[i][2] = 0;
		geometry[i][3] = 0;
	}

	geometry[0][0] = (p_a[0] * xmax);
	geometry[1][0] = (p_b[0] * xmax);
	geometry[2][0] = (p_c[0] * xmax);
	geometry[3][0] = (p_d[0] * xmax);

	geometry[0][1] = (p_a[1] * ymax);
	geometry[1][1] = (p_b[1] * ymax);
	geometry[2][1] = (p_c[1] * ymax);
	geometry[3][1] = (p_d[1] * ymax);

	/* subdivide the curve ntimes (1000) times */
	ntimes = 4 * xmax;
	/* ntimes can be adjusted to give a finer or coarser curve */
	d = 1.0 / ntimes;
	d2 = d * d;
	d3 = d * d * d;

	/* construct a temporary matrix for determining the forward differencing deltas */
	tmp2[0][0] = 0;
	tmp2[0][1] = 0;
	tmp2[0][2] = 0;
	tmp2[0][3] = 1;
	tmp2[1][0] = d3;
	tmp2[1][1] = d2;
	tmp2[1][2] = d;
	tmp2[1][3] = 0;
	tmp2[2][0] = 6 * d3;
	tmp2[2][1] = 2 * d2;
	tmp2[2][2] = 0;
	tmp2[2][3] = 0;
	tmp2[3][0] = 6 * d3;
	tmp2[3][1] = 0;
	tmp2[3][2] = 0;
	tmp2[3][3] = 0;

	/* compose the basis and geometry matrices */

	static const float CR_basis[4][4] = {
		{ -0.5, 1.5, -1.5, 0.5 },
		{ 1.0, -2.5, 2.0, -0.5 },
		{ -0.5, 0.0, 0.5, 0.0 },
		{ 0.0, 1.0, 0.0, 0.0 },
	};

	for (i = 0; i < 4; i++) {
		for (j = 0; j < 4; j++) {
			tmp1[i][j] = (CR_basis[i][0] * geometry[0][j] +
						  CR_basis[i][1] * geometry[1][j] +
						  CR_basis[i][2] * geometry[2][j] +
						  CR_basis[i][3] * geometry[3][j]);
		}
	}
	/* compose the above results to get the deltas matrix */

	for (i = 0; i < 4; i++) {
		for (j = 0; j < 4; j++) {
			deltas[i][j] = (tmp2[i][0] * tmp1[0][j] +
							tmp2[i][1] * tmp1[1][j] +
							tmp2[i][2] * tmp1[2][j] +
							tmp2[i][3] * tmp1[3][j]);
		}
	}

	/* extract the x deltas */
	x = deltas[0][0];
	dx = deltas[1][0];
	dx2 = deltas[2][0];
	dx3 = deltas[3][0];

	/* extract the y deltas */
	y = deltas[0][1];
	dy = deltas[1][1];
	dy2 = deltas[2][1];
	dy3 = deltas[3][1];

	lastx = CLAMP(x, 0, xmax);
	lasty = CLAMP(y, 0, ymax);

	/*	if (fix255)
		{
				cd->curve[cd->outline][lastx] = lasty;
		}
		else
		{
				cd->curve_ptr[cd->outline][lastx] = lasty;
				if(gb_debug) printf("bender_plot_curve xmax:%d ymax:%d\n", (int)xmax, (int)ymax);
		}
*/
	/* loop over the curve */
	for (i = 0; i < ntimes; i++) {
		/* increment the x values */
		x += dx;
		dx += dx2;
		dx2 += dx3;

		/* increment the y values */
		y += dy;
		dy += dy2;
		dy2 += dy3;

		newx = CLAMP((Math::round(x)), 0, xmax);
		newy = CLAMP((Math::round(y)), 0, ymax);

		/* if this point is different than the last one...then draw it */
		if ((lastx != newx) || (lasty != newy)) {
#if 0
			if(fix255)
			{
				/* use fixed array size (for the curve graph) */
				cd->curve[cd->outline][newx] = newy;
			}
			else
			{
				/* use dynamic allocated curve_ptr (for the real curve) */
				cd->curve_ptr[cd->outline][newx] = newy;

				if(gb_debug) printf("outline: %d  cX: %d cY: %d\n", (int)cd->outline, (int)newx, (int)newy);
			}
#endif
			draw_line(Vector2(lastx, ymax - lasty), Vector2(newx, ymax - newy), Color(0.8, 0.8, 0.8, 0.8), 2.0);
		}

		lastx = newx;
		lasty = newy;
	}
}

void GraphCurveMapEdit::_notification(int p_what) {

	if (p_what == NOTIFICATION_DRAW) {

		draw_style_box(get_stylebox("bg", "Tree"), Rect2(Point2(), get_size()));

		int w = get_size().x;
		int h = get_size().y;

		Vector2 prev = Vector2(0, 0);
		Vector2 prev2 = Vector2(0, 0);

		for (int i = -1; i < points.size(); i++) {

			Vector2 next;
			Vector2 next2;
			if (i + 1 >= points.size()) {
				next = Vector2(1, 1);
			} else {
				next = Vector2(points[i + 1].offset, points[i + 1].height);
			}

			if (i + 2 >= points.size()) {
				next2 = Vector2(1, 1);
			} else {
				next2 = Vector2(points[i + 2].offset, points[i + 2].height);
			}

			/*if (i==-1 && prev.offset==next.offset) {
								prev=next;
								continue;
						}*/

			_plot_curve(prev2, prev, next, next2);

			prev2 = prev;
			prev = next;
		}

		for (int i = 0; i < points.size(); i++) {

			Color col = i == grabbed ? Color(1, 0.0, 0.0, 0.9) : Color(1, 1, 1, 0.8);

			draw_rect(Rect2(Vector2(points[i].offset, 1.0 - points[i].height) * get_size() - Vector2(2, 2), Vector2(5, 5)), col);
		}

		/*		if (grabbed!=-1) {

						draw_rect(Rect2(total_w+3,0,h,h),points[grabbed].color);
				}
*/
		if (has_focus()) {

			draw_line(Vector2(-1, -1), Vector2(w + 1, -1), Color(1, 1, 1, 0.6));
			draw_line(Vector2(w + 1, -1), Vector2(w + 1, h + 1), Color(1, 1, 1, 0.6));
			draw_line(Vector2(w + 1, h + 1), Vector2(-1, h + 1), Color(1, 1, 1, 0.6));
			draw_line(Vector2(-1, -1), Vector2(-1, h + 1), Color(1, 1, 1, 0.6));
		}
	}
}

Size2 GraphCurveMapEdit::get_minimum_size() const {

	return Vector2(64, 64);
}

void GraphCurveMapEdit::set_points(const Vector<Vector2> &p_points) {

	points.clear();
	for (int i = 0; i < p_points.size(); i++) {
		Point p;
		p.offset = p_points[i].x;
		p.height = p_points[i].y;
		points.push_back(p);
	}

	points.sort();
	update();
}

Vector<Vector2> GraphCurveMapEdit::get_points() const {
	Vector<Vector2> ret;
	for (int i = 0; i < points.size(); i++)
		ret.push_back(Vector2(points[i].offset, points[i].height));
	return ret;
}

void GraphCurveMapEdit::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("_input_event"), &GraphCurveMapEdit::_input_event);
	ADD_SIGNAL(MethodInfo("curve_changed"));
}

GraphCurveMapEdit::GraphCurveMapEdit() {

	grabbed = -1;
	grabbing = false;
	set_focus_mode(FOCUS_ALL);
}

////cbacks
///
void ShaderGraphView::_scalar_const_changed(double p_value, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Scalar Constant"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "scalar_const_node_set_value", type, p_id, p_value);
	ur->add_undo_method(graph.ptr(), "scalar_const_node_set_value", type, p_id, graph->scalar_const_node_get_value(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}

void ShaderGraphView::_vec_const_changed(double p_value, int p_id, Array p_arr) {

	Vector3 val;
	for (int i = 0; i < p_arr.size(); i++) {
		val[i] = p_arr[i].call("get_val");
	}

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Vec Constant"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "vec_const_node_set_value", type, p_id, val);
	ur->add_undo_method(graph.ptr(), "vec_const_node_set_value", type, p_id, graph->vec_const_node_get_value(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_rgb_const_changed(const Color &p_color, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change RGB Constant"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "rgb_const_node_set_value", type, p_id, p_color);
	ur->add_undo_method(graph.ptr(), "rgb_const_node_set_value", type, p_id, graph->rgb_const_node_get_value(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_scalar_op_changed(int p_op, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Scalar Operator"));
	ur->add_do_method(graph.ptr(), "scalar_op_node_set_op", type, p_id, p_op);
	ur->add_undo_method(graph.ptr(), "scalar_op_node_set_op", type, p_id, graph->scalar_op_node_get_op(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_vec_op_changed(int p_op, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Vec Operator"));
	ur->add_do_method(graph.ptr(), "vec_op_node_set_op", type, p_id, p_op);
	ur->add_undo_method(graph.ptr(), "vec_op_node_set_op", type, p_id, graph->vec_op_node_get_op(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_vec_scalar_op_changed(int p_op, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Vec Scalar Operator"));
	ur->add_do_method(graph.ptr(), "vec_scalar_op_node_set_op", type, p_id, p_op);
	ur->add_undo_method(graph.ptr(), "vec_scalar_op_node_set_op", type, p_id, graph->vec_scalar_op_node_get_op(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_rgb_op_changed(int p_op, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change RGB Operator"));
	ur->add_do_method(graph.ptr(), "rgb_op_node_set_op", type, p_id, p_op);
	ur->add_undo_method(graph.ptr(), "rgb_op_node_set_op", type, p_id, graph->rgb_op_node_get_op(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_xform_inv_rev_changed(bool p_enabled, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Toggle Rot Only"));
	ur->add_do_method(graph.ptr(), "xform_vec_mult_node_set_no_translation", type, p_id, p_enabled);
	ur->add_undo_method(graph.ptr(), "xform_vec_mult_node_set_no_translation", type, p_id, graph->xform_vec_mult_node_get_no_translation(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_scalar_func_changed(int p_func, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Scalar Function"));
	ur->add_do_method(graph.ptr(), "scalar_func_node_set_function", type, p_id, p_func);
	ur->add_undo_method(graph.ptr(), "scalar_func_node_set_function", type, p_id, graph->scalar_func_node_get_function(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_vec_func_changed(int p_func, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Vec Function"));
	ur->add_do_method(graph.ptr(), "vec_func_node_set_function", type, p_id, p_func);
	ur->add_undo_method(graph.ptr(), "vec_func_node_set_function", type, p_id, graph->vec_func_node_get_function(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_scalar_input_changed(double p_value, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Scalar Uniform"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "scalar_input_node_set_value", type, p_id, p_value);
	ur->add_undo_method(graph.ptr(), "scalar_input_node_set_value", type, p_id, graph->scalar_input_node_get_value(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_vec_input_changed(double p_value, int p_id, Array p_arr) {

	Vector3 val;
	for (int i = 0; i < p_arr.size(); i++) {
		val[i] = p_arr[i].call("get_val");
	}

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Vec Uniform"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "vec_input_node_set_value", type, p_id, val);
	ur->add_undo_method(graph.ptr(), "vec_input_node_set_value", type, p_id, graph->vec_input_node_get_value(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_xform_input_changed(int p_id, Node *p_button) {

	ToolButton *tb = p_button->cast_to<ToolButton>();
	ped_popup->set_pos(tb->get_global_pos() + Vector2(0, tb->get_size().height));
	ped_popup->set_size(tb->get_size());
	edited_id = p_id;
	edited_def = -1;
	ped_popup->edit(NULL, "", Variant::TRANSFORM, graph->xform_input_node_get_value(type, p_id), PROPERTY_HINT_NONE, "");
	ped_popup->popup();
}
void ShaderGraphView::_xform_const_changed(int p_id, Node *p_button) {

	ToolButton *tb = p_button->cast_to<ToolButton>();
	ped_popup->set_pos(tb->get_global_pos() + Vector2(0, tb->get_size().height));
	ped_popup->set_size(tb->get_size());
	edited_id = p_id;
	edited_def = -1;
	ped_popup->edit(NULL, "", Variant::TRANSFORM, graph->xform_const_node_get_value(type, p_id), PROPERTY_HINT_NONE, "");
	ped_popup->popup();
}

void ShaderGraphView::_rgb_input_changed(const Color &p_color, int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change RGB Uniform"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "rgb_input_node_set_value", type, p_id, p_color);
	ur->add_undo_method(graph.ptr(), "rgb_input_node_set_value", type, p_id, graph->rgb_input_node_get_value(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}
void ShaderGraphView::_tex_input_change(int p_id, Node *p_button) {
}
void ShaderGraphView::_cube_input_change(int p_id) {
}

void ShaderGraphView::_variant_edited() {

	if (edited_def != -1) {

		Variant v = ped_popup->get_variant();
		Variant v2 = graph->default_get_value(type, edited_id, edited_def);
		if (v2.get_type() == Variant::NIL)
			switch (v.get_type()) {
				case Variant::VECTOR3:
					v2 = Vector3();
					break;
				case Variant::REAL:
					v2 = 0.0;
					break;
				case Variant::TRANSFORM:
					v2 = Transform();
					break;
				case Variant::COLOR:
					v2 = Color();
					break;
			}
		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action(TTR("Change Default Value"));
		ur->add_do_method(graph.ptr(), "default_set_value", type, edited_id, edited_def, v);
		ur->add_undo_method(graph.ptr(), "default_set_value", type, edited_id, edited_def, v2);
		ur->add_do_method(this, "_update_graph");
		ur->add_undo_method(this, "_update_graph");
		ur->commit_action();
		return;
	}

	if (graph->node_get_type(type, edited_id) == ShaderGraph::NODE_XFORM_CONST) {

		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action(TTR("Change XForm Uniform"));
		ur->add_do_method(graph.ptr(), "xform_const_node_set_value", type, edited_id, ped_popup->get_variant());
		ur->add_undo_method(graph.ptr(), "xform_const_node_set_value", type, edited_id, graph->xform_const_node_get_value(type, edited_id));
		ur->add_do_method(this, "_update_graph");
		ur->add_undo_method(this, "_update_graph");
		ur->commit_action();
	}

	if (graph->node_get_type(type, edited_id) == ShaderGraph::NODE_XFORM_INPUT) {

		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action(TTR("Change XForm Uniform"));
		ur->add_do_method(graph.ptr(), "xform_input_node_set_value", type, edited_id, ped_popup->get_variant());
		ur->add_undo_method(graph.ptr(), "xform_input_node_set_value", type, edited_id, graph->xform_input_node_get_value(type, edited_id));
		ur->add_do_method(this, "_update_graph");
		ur->add_undo_method(this, "_update_graph");
		ur->commit_action();
	}

	if (graph->node_get_type(type, edited_id) == ShaderGraph::NODE_TEXTURE_INPUT) {

		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action(TTR("Change Texture Uniform"));
		ur->add_do_method(graph.ptr(), "texture_input_node_set_value", type, edited_id, ped_popup->get_variant());
		ur->add_undo_method(graph.ptr(), "texture_input_node_set_value", type, edited_id, graph->texture_input_node_get_value(type, edited_id));
		ur->add_do_method(this, "_update_graph");
		ur->add_undo_method(this, "_update_graph");
		ur->commit_action();
	}

	if (graph->node_get_type(type, edited_id) == ShaderGraph::NODE_CUBEMAP_INPUT) {

		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action(TTR("Change Cubemap Uniform"));
		ur->add_do_method(graph.ptr(), "cubemap_input_node_set_value", type, edited_id, ped_popup->get_variant());
		ur->add_undo_method(graph.ptr(), "cubemap_input_node_set_value", type, edited_id, graph->cubemap_input_node_get_value(type, edited_id));
		ur->add_do_method(this, "_update_graph");
		ur->add_undo_method(this, "_update_graph");
		ur->commit_action();
	}
}

void ShaderGraphView::_comment_edited(int p_id, Node *p_button) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	TextEdit *te = p_button->cast_to<TextEdit>();
	ur->create_action(TTR("Change Comment"), UndoRedo::MERGE_ENDS);
	ur->add_do_method(graph.ptr(), "comment_node_set_text", type, p_id, te->get_text());
	ur->add_undo_method(graph.ptr(), "comment_node_set_text", type, p_id, graph->comment_node_get_text(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}

void ShaderGraphView::_color_ramp_changed(int p_id, Node *p_ramp) {

	GraphColorRampEdit *cr = p_ramp->cast_to<GraphColorRampEdit>();

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	Vector<float> offsets = cr->get_offsets();
	Vector<Color> colors = cr->get_colors();

	DVector<float> new_offsets;
	DVector<Color> new_colors;
	{
		new_offsets.resize(offsets.size());
		new_colors.resize(colors.size());
		DVector<float>::Write ow = new_offsets.write();
		DVector<Color>::Write cw = new_colors.write();
		for (int i = 0; i < new_offsets.size(); i++) {
			ow[i] = offsets[i];
			cw[i] = colors[i];
		}
	}

	DVector<float> old_offsets = graph->color_ramp_node_get_offsets(type, p_id);
	DVector<Color> old_colors = graph->color_ramp_node_get_colors(type, p_id);

	if (old_offsets.size() != new_offsets.size())
		ur->create_action(TTR("Add/Remove to Color Ramp"));
	else
		ur->create_action(TTR("Modify Color Ramp"), UndoRedo::MERGE_ENDS);

	ur->add_do_method(graph.ptr(), "color_ramp_node_set_ramp", type, p_id, new_colors, new_offsets);
	ur->add_undo_method(graph.ptr(), "color_ramp_node_set_ramp", type, p_id, old_colors, old_offsets);
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}

void ShaderGraphView::_curve_changed(int p_id, Node *p_curve) {

	GraphCurveMapEdit *cr = p_curve->cast_to<GraphCurveMapEdit>();

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	Vector<Point2> points = cr->get_points();

	DVector<Vector2> new_points;
	{
		new_points.resize(points.size());
		DVector<Vector2>::Write ow = new_points.write();
		for (int i = 0; i < new_points.size(); i++) {
			ow[i] = points[i];
		}
	}

	DVector<Vector2> old_points = graph->curve_map_node_get_points(type, p_id);

	if (old_points.size() != new_points.size())
		ur->create_action(TTR("Add/Remove to Curve Map"));
	else
		ur->create_action(TTR("Modify Curve Map"), UndoRedo::MERGE_ENDS);

	ur->add_do_method(graph.ptr(), "curve_map_node_set_points", type, p_id, new_points);
	ur->add_undo_method(graph.ptr(), "curve_map_node_set_points", type, p_id, old_points);
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
}

void ShaderGraphView::_input_name_changed(const String &p_name, int p_id, Node *p_line_edit) {

	LineEdit *le = p_line_edit->cast_to<LineEdit>();
	ERR_FAIL_COND(!le);

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Change Input Name"));
	ur->add_do_method(graph.ptr(), "input_node_set_name", type, p_id, p_name);
	ur->add_undo_method(graph.ptr(), "input_node_set_name", type, p_id, graph->input_node_get_name(type, p_id));
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	block_update = true;
	ur->commit_action();
	block_update = false;
	le->set_text(graph->input_node_get_name(type, p_id));
}

void ShaderGraphView::_tex_edited(int p_id, Node *p_button) {

	ToolButton *tb = p_button->cast_to<ToolButton>();
	ped_popup->set_pos(tb->get_global_pos() + Vector2(0, tb->get_size().height));
	ped_popup->set_size(tb->get_size());
	edited_id = p_id;
	edited_def = -1;
	ped_popup->edit(NULL, "", Variant::OBJECT, graph->texture_input_node_get_value(type, p_id), PROPERTY_HINT_RESOURCE_TYPE, "Texture");
}

void ShaderGraphView::_cube_edited(int p_id, Node *p_button) {

	ToolButton *tb = p_button->cast_to<ToolButton>();
	ped_popup->set_pos(tb->get_global_pos() + Vector2(0, tb->get_size().height));
	ped_popup->set_size(tb->get_size());
	edited_id = p_id;
	edited_def = -1;
	ped_popup->edit(NULL, "", Variant::OBJECT, graph->cubemap_input_node_get_value(type, p_id), PROPERTY_HINT_RESOURCE_TYPE, "CubeMap");
}

//////////////view/////////////

void ShaderGraphView::_connection_request(const String &p_from, int p_from_slot, const String &p_to, int p_to_slot) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	int from_idx = -1;
	int to_idx = -1;
	for (Map<int, GraphNode *>::Element *E = node_map.front(); E; E = E->next()) {

		if (p_from == E->get()->get_name())
			from_idx = E->key();
		if (p_to == E->get()->get_name())
			to_idx = E->key();
	}

	ERR_FAIL_COND(from_idx == -1);
	ERR_FAIL_COND(to_idx == -1);

	ur->create_action(TTR("Connect Graph Nodes"));

	List<ShaderGraph::Connection> conns;

	graph->get_node_connections(type, &conns);
	//disconnect/reconnect dependencies
	ur->add_undo_method(graph.ptr(), "disconnect_node", type, from_idx, p_from_slot, to_idx, p_to_slot);
	for (List<ShaderGraph::Connection>::Element *E = conns.front(); E; E = E->next()) {

		if (E->get().dst_id == to_idx && E->get().dst_slot == p_to_slot) {
			ur->add_do_method(graph.ptr(), "disconnect_node", type, E->get().src_id, E->get().src_slot, E->get().dst_id, E->get().dst_slot);
			ur->add_undo_method(graph.ptr(), "connect_node", type, E->get().src_id, E->get().src_slot, E->get().dst_id, E->get().dst_slot);
		}
	}
	ur->add_do_method(graph.ptr(), "connect_node", type, from_idx, p_from_slot, to_idx, p_to_slot);
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	ur->commit_action();
}

void ShaderGraphView::_disconnection_request(const String &p_from, int p_from_slot, const String &p_to, int p_to_slot) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	int from_idx = -1;
	int to_idx = -1;
	for (Map<int, GraphNode *>::Element *E = node_map.front(); E; E = E->next()) {

		if (p_from == E->get()->get_name())
			from_idx = E->key();
		if (p_to == E->get()->get_name())
			to_idx = E->key();
	}

	ERR_FAIL_COND(from_idx == -1);
	ERR_FAIL_COND(to_idx == -1);

	if (!graph->is_node_connected(type, from_idx, p_from_slot, to_idx, p_to_slot))
		return; //nothing to disconnect

	ur->create_action(TTR("Disconnect Graph Nodes"));

	List<ShaderGraph::Connection> conns;

	graph->get_node_connections(type, &conns);
	//disconnect/reconnect dependencies
	ur->add_do_method(graph.ptr(), "disconnect_node", type, from_idx, p_from_slot, to_idx, p_to_slot);
	ur->add_undo_method(graph.ptr(), "connect_node", type, from_idx, p_from_slot, to_idx, p_to_slot);
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	ur->commit_action();
}

void ShaderGraphView::_node_removed(int p_id) {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Remove Shader Graph Node"));

	ur->add_do_method(graph.ptr(), "node_remove", type, p_id);
	ur->add_undo_method(graph.ptr(), "node_add", type, graph->node_get_type(type, p_id), p_id);
	ur->add_undo_method(graph.ptr(), "node_set_state", type, p_id, graph->node_get_state(type, p_id));
	List<ShaderGraph::Connection> conns;

	graph->get_node_connections(type, &conns);
	for (List<ShaderGraph::Connection>::Element *E = conns.front(); E; E = E->next()) {

		if (E->get().dst_id == p_id || E->get().src_id == p_id) {
			ur->add_undo_method(graph.ptr(), "connect_node", type, E->get().src_id, E->get().src_slot, E->get().dst_id, E->get().dst_slot);
		}
	}
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	ur->commit_action();
}

void ShaderGraphView::_begin_node_move() {
	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Move Shader Graph Node"));
}

void ShaderGraphView::_node_moved(const Vector2 &p_from, const Vector2 &p_to, int p_id) {

	ERR_FAIL_COND(!node_map.has(p_id));
	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->add_do_method(this, "_move_node", p_id, p_to);
	ur->add_undo_method(this, "_move_node", p_id, p_from);
}

void ShaderGraphView::_end_node_move() {
	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->commit_action();
}

void ShaderGraphView::_move_node(int p_id, const Vector2 &p_to) {

	ERR_FAIL_COND(!node_map.has(p_id));
	node_map[p_id]->set_offset(p_to);
	graph->node_set_pos(type, p_id, p_to);
}

void ShaderGraphView::_duplicate_nodes_request() {
	Array s_id;

	for (Map<int, GraphNode *>::Element *E = node_map.front(); E; E = E->next()) {
		ShaderGraph::NodeType t = graph->node_get_type(type, E->key());
		if (t == ShaderGraph::NODE_OUTPUT || t == ShaderGraph::NODE_INPUT)
			continue;
		GraphNode *gn = E->get();
		if (gn && gn->is_selected())
			s_id.push_back(E->key());
	}

	if (s_id.size() == 0)
		return;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Duplicate Graph Node(s)"));
	ur->add_do_method(this, "_duplicate_nodes", s_id);
	List<int> n_ids = graph->generate_ids(type, s_id.size());
	for (List<int>::Element *E = n_ids.front(); E; E = E->next())
		ur->add_undo_method(graph.ptr(), "node_remove", type, E->get());
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	ur->commit_action();
}

void ShaderGraphView::_duplicate_nodes(const Array &p_nodes) {
	List<int> n = List<int>();
	for (int i = 0; i < p_nodes.size(); i++)
		n.push_back(p_nodes.get(i));
	graph->duplicate_nodes(type, n);
	call_deferred("_update_graph");
}

void ShaderGraphView::_delete_nodes_request() {
	List<int> s_id = List<int>();

	for (Map<int, GraphNode *>::Element *E = node_map.front(); E; E = E->next()) {
		ShaderGraph::NodeType t = graph->node_get_type(type, E->key());
		if (t == ShaderGraph::NODE_OUTPUT)
			continue;
		GraphNode *gn = E->get();
		if (gn && gn->is_selected())
			s_id.push_back(E->key());
	}

	if (s_id.size() == 0)
		return;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Delete Shader Graph Node(s)"));

	for (List<int>::Element *N = s_id.front(); N; N = N->next()) {
		ur->add_do_method(graph.ptr(), "node_remove", type, N->get());
		ur->add_undo_method(graph.ptr(), "node_add", type, graph->node_get_type(type, N->get()), N->get());
		ur->add_undo_method(graph.ptr(), "node_set_state", type, N->get(), graph->node_get_state(type, N->get()));
		List<ShaderGraph::Connection> conns;

		graph->get_node_connections(type, &conns);
		for (List<ShaderGraph::Connection>::Element *E = conns.front(); E; E = E->next()) {

			if (E->get().dst_id == N->get() || E->get().src_id == N->get()) {
				ur->add_undo_method(graph.ptr(), "connect_node", type, E->get().src_id, E->get().src_slot, E->get().dst_id, E->get().dst_slot);
			}
		}
	}
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	ur->commit_action();
}

void ShaderGraphView::_default_changed(int p_id, Node *p_button, int p_param, int v_type, String p_hint) {
	ToolButton *tb = p_button->cast_to<ToolButton>();
	ped_popup->set_pos(tb->get_global_pos() + Vector2(0, tb->get_size().height));
	ped_popup->set_size(tb->get_size());
	edited_id = p_id;
	edited_def = p_param;
	Variant::Type vt = (Variant::Type)v_type;
	Variant v = graph->default_get_value(type, p_id, edited_def);
	int h = PROPERTY_HINT_NONE;
	if (v.get_type() == Variant::NIL)
		switch (vt) {
			case Variant::VECTOR3:
				v = Vector3();
				break;
			case Variant::REAL:
				h = PROPERTY_HINT_RANGE;
				v = 0.0;
				break;
			case Variant::TRANSFORM:
				v = Transform();
				break;
			case Variant::COLOR:
				h = PROPERTY_HINT_COLOR_NO_ALPHA;
				v = Color();
				break;
		}

	ped_popup->edit(NULL, "", vt, v, h, p_hint);

	ped_popup->popup();
}

ToolButton *ShaderGraphView::make_label(String text, Variant::Type v_type) {
	ToolButton *l = memnew(ToolButton);
	l->set_text(text);
	l->set_text_align(ToolButton::ALIGN_LEFT);
	l->add_style_override("hover", l->get_stylebox("normal", "ToolButton"));
	l->add_style_override("pressed", l->get_stylebox("normal", "ToolButton"));
	l->add_style_override("focus", l->get_stylebox("normal", "ToolButton"));
	switch (v_type) {
		case Variant::REAL:
			l->set_icon(ped_popup->get_icon("Real", "EditorIcons"));
			break;
		case Variant::VECTOR3:
			l->set_icon(ped_popup->get_icon("Vector", "EditorIcons"));
			break;
		case Variant::TRANSFORM:
			l->set_icon(ped_popup->get_icon("Matrix", "EditorIcons"));
			break;
		case Variant::COLOR:
			l->set_icon(ped_popup->get_icon("Color", "EditorIcons"));
	}
	return l;
}

ToolButton *ShaderGraphView::make_editor(String text, GraphNode *gn, int p_id, int param, Variant::Type v_type, String p_hint) {
	ToolButton *edit = memnew(ToolButton);
	edit->set_text(text);
	edit->set_text_align(ToolButton::ALIGN_LEFT);
	edit->set_flat(false);
	edit->add_style_override("normal", gn->get_stylebox("defaultframe", "GraphNode"));
	edit->add_style_override("hover", gn->get_stylebox("defaultframe", "GraphNode"));
	edit->add_style_override("pressed", gn->get_stylebox("defaultframe", "GraphNode"));
	edit->add_style_override("focus", gn->get_stylebox("defaultfocus", "GraphNode"));
	edit->connect("pressed", this, "_default_changed", varray(p_id, edit, param, v_type, p_hint));

	switch (v_type) {
		case Variant::REAL:
			edit->set_icon(ped_popup->get_icon("Real", "EditorIcons"));
			break;
		case Variant::VECTOR3:
			edit->set_icon(ped_popup->get_icon("Vector", "EditorIcons"));
			break;
		case Variant::TRANSFORM:
			edit->set_icon(ped_popup->get_icon("Matrix", "EditorIcons"));
			break;
		case Variant::COLOR:
			Image icon_color = Image(15, 15, false, Image::FORMAT_RGB);
			Color c = graph->default_get_value(type, p_id, param);
			for (int x = 1; x < 14; x++)
				for (int y = 1; y < 14; y++)
					icon_color.put_pixel(x, y, c);
			Ref<ImageTexture> t;
			t.instance();
			t->create_from_image(icon_color);
			edit->set_icon(t);
			break;
	}
	return edit;
}

void ShaderGraphView::_create_node(int p_id) {

	GraphNode *gn = memnew(GraphNode);
	gn->set_show_close_button(true);
	Color typecol[4] = {
		Color(0.9, 0.4, 1),
		Color(0.8, 1, 0.2),
		Color(1, 0.2, 0.2),
		Color(0, 1, 1)
	};

	const String hint_spin = "-65536,65535,0.001";
	const String hint_slider = "0.0,1.0,0.01,slider";

	switch (graph->node_get_type(type, p_id)) {

		case ShaderGraph::NODE_INPUT: {

			gn->set_title("Input");

			List<ShaderGraph::SlotInfo> si;
			ShaderGraph::get_input_output_node_slot_info(graph->get_mode(), type, &si);

			int idx = 0;
			for (List<ShaderGraph::SlotInfo>::Element *E = si.front(); E; E = E->next()) {
				ShaderGraph::SlotInfo &s = E->get();
				if (s.dir == ShaderGraph::SLOT_IN) {

					Label *l = memnew(Label);
					l->set_text(s.name);
					l->set_align(Label::ALIGN_RIGHT);
					gn->add_child(l);
					gn->set_slot(idx, false, 0, Color(), true, s.type, typecol[s.type]);
					idx++;
				}
			}

		} break; // all inputs (case Shader type dependent)
		case ShaderGraph::NODE_SCALAR_CONST: {
			gn->set_title("Scalar");
			SpinBox *sb = memnew(SpinBox);
			sb->set_min(-100000);
			sb->set_max(100000);
			sb->set_step(0.001);
			sb->set_val(graph->scalar_const_node_get_value(type, p_id));
			sb->connect("value_changed", this, "_scalar_const_changed", varray(p_id));
			gn->add_child(sb);
			gn->set_slot(0, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; //scalar constant
		case ShaderGraph::NODE_VEC_CONST: {

			gn->set_title("Vector");
			Array v3p(true);
			for (int i = 0; i < 3; i++) {
				HBoxContainer *hbc = memnew(HBoxContainer);
				Label *l = memnew(Label);
				l->set_text(String::chr('X' + i));
				hbc->add_child(l);
				SpinBox *sb = memnew(SpinBox);
				sb->set_h_size_flags(Control::SIZE_EXPAND_FILL);
				sb->set_min(-100000);
				sb->set_max(100000);
				sb->set_step(0.001);
				sb->set_val(graph->vec_const_node_get_value(type, p_id)[i]);
				sb->connect("value_changed", this, "_vec_const_changed", varray(p_id, v3p));
				v3p.push_back(sb);
				hbc->add_child(sb);
				gn->add_child(hbc);
			}
			gn->set_slot(0, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);

		} break; //vec3 constant
		case ShaderGraph::NODE_RGB_CONST: {

			gn->set_title("Color");
			ColorPickerButton *cpb = memnew(ColorPickerButton);
			cpb->set_color(graph->rgb_const_node_get_value(type, p_id));
			cpb->connect("color_changed", this, "_rgb_const_changed", varray(p_id));
			gn->add_child(cpb);
			Label *l = memnew(Label);
			l->set_text("RGB");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);
			l = memnew(Label);
			l->set_text("Alpha");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; //rgb constant (shows a color picker instead)
		case ShaderGraph::NODE_XFORM_CONST: {
			gn->set_title("XForm");
			ToolButton *edit = memnew(ToolButton);
			edit->set_text("edit..");
			edit->connect("pressed", this, "_xform_const_changed", varray(p_id, edit));
			gn->add_child(edit);
			gn->set_slot(0, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM]);

		} break; // 4x4 matrix constant
		case ShaderGraph::NODE_TIME: {

			gn->set_title("Time");
			Label *l = memnew(Label);
			l->set_text("(s)");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);
			gn->set_slot(0, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // time in seconds
		case ShaderGraph::NODE_SCREEN_TEX: {

			gn->set_title("ScreenTex");
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (!graph->is_slot_connected(type, p_id, 0)) {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor("UV: " + v, gn, p_id, 0, Variant::VECTOR3));
			} else {
				hbc->add_child(make_label("UV", Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("RGB")));
			gn->add_child(hbc);
			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);

		} break; // screen texture sampler (takes UV) (only usable in fragment case Shader)
		case ShaderGraph::NODE_SCALAR_OP: {

			gn->set_title("ScalarOp");
			static const char *op_name[ShaderGraph::SCALAR_MAX_OP] = {
				("Add"),
				("Sub"),
				("Mul"),
				("Div"),
				("Mod"),
				("Pow"),
				("Max"),
				("Min"),
				("Atan2")
			};

			OptionButton *ob = memnew(OptionButton);
			for (int i = 0; i < ShaderGraph::SCALAR_MAX_OP; i++) {

				ob->add_item(op_name[i], i);
			}

			ob->select(graph->scalar_op_node_get_op(type, p_id));
			ob->connect("item_selected", this, "_scalar_op_changed", varray(p_id));
			gn->add_child(ob);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("a: ") + Variant(v), gn, p_id, 0, Variant::REAL, hint_spin));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("b: ") + Variant(v), gn, p_id, 1, Variant::REAL, hint_spin));
			}

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());

		} break; // scalar vs scalar op (mul: { } break; add: { } break; div: { } break; etc)
		case ShaderGraph::NODE_VEC_OP: {

			gn->set_title("VecOp");
			static const char *op_name[ShaderGraph::VEC_MAX_OP] = {
				("Add"),
				("Sub"),
				("Mul"),
				("Div"),
				("Mod"),
				("Pow"),
				("Max"),
				("Min"),
				("Cross")
			};

			OptionButton *ob = memnew(OptionButton);
			for (int i = 0; i < ShaderGraph::VEC_MAX_OP; i++) {

				ob->add_item(op_name[i], i);
			}

			ob->select(graph->vec_op_node_get_op(type, p_id));
			ob->connect("item_selected", this, "_vec_op_changed", varray(p_id));
			gn->add_child(ob);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("a: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("b: ") + v, gn, p_id, 1, Variant::VECTOR3));
			}

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());

		} break; // vec3 vs vec3 op (mul: { } break;ad: { } break;div: { } break;crossprod: { } break;etc)
		case ShaderGraph::NODE_VEC_SCALAR_OP: {

			gn->set_title("VecScalarOp");
			static const char *op_name[ShaderGraph::VEC_SCALAR_MAX_OP] = {
				("Mul"),
				("Div"),
				("Pow"),
			};

			OptionButton *ob = memnew(OptionButton);
			for (int i = 0; i < ShaderGraph::VEC_SCALAR_MAX_OP; i++) {

				ob->add_item(op_name[i], i);
			}

			ob->select(graph->vec_scalar_op_node_get_op(type, p_id));
			ob->connect("item_selected", this, "_vec_scalar_op_changed", varray(p_id));
			gn->add_child(ob);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("a: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);

			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("b: ") + Variant(v), gn, p_id, 1, Variant::REAL, hint_spin));
			}
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());

		} break; // vec3 vs scalar op (mul: { } break; add: { } break; div: { } break; etc)
		case ShaderGraph::NODE_RGB_OP: {

			gn->set_title("RGB Op");
			static const char *op_name[ShaderGraph::RGB_MAX_OP] = {
				("Screen"),
				("Difference"),
				("Darken"),
				("Lighten"),
				("Overlay"),
				("Dodge"),
				("Burn"),
				("SoftLight"),
				("HardLight")
			};

			OptionButton *ob = memnew(OptionButton);
			for (int i = 0; i < ShaderGraph::RGB_MAX_OP; i++) {

				ob->add_item(op_name[i], i);
			}

			ob->select(graph->rgb_op_node_get_op(type, p_id));
			ob->connect("item_selected", this, "_rgb_op_changed", varray(p_id));
			gn->add_child(ob);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::COLOR));
			} else {
				hbc->add_child(make_editor(String("a: "), gn, p_id, 0, Variant::COLOR));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::COLOR));
			} else {
				gn->add_child(make_editor(String("b: "), gn, p_id, 1, Variant::COLOR));
			}

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());

		} break; // vec3 vs vec3 rgb op (with scalar amount): { } break; like brighten: { } break; darken: { } break; burn: { } break; dodge: { } break; multiply: { } break; etc.
		case ShaderGraph::NODE_XFORM_MULT: {

			gn->set_title("XFMult");
			HBoxContainer *hbc = memnew(HBoxContainer);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::TRANSFORM));
			} else {
				hbc->add_child(make_editor(String("a: edit..."), gn, p_id, 0, Variant::TRANSFORM));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::TRANSFORM));
			} else {
				gn->add_child(make_editor(String("b: edit..."), gn, p_id, 1, Variant::TRANSFORM));
			}

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM], true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM]);
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM], false, 0, Color());

		} break; // mat4 x mat4
		case ShaderGraph::NODE_XFORM_VEC_MULT: {

			gn->set_title("XFVecMult");

			CheckBox *button = memnew(CheckBox("RotOnly"));
			button->set_pressed(graph->xform_vec_mult_node_get_no_translation(type, p_id));
			button->connect("toggled", this, "_xform_inv_rev_changed", varray(p_id));

			gn->add_child(button);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("xf", Variant::TRANSFORM));
			} else {
				hbc->add_child(make_editor(String("xf: edit..."), gn, p_id, 0, Variant::TRANSFORM));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("out"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("a", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("a: ") + v, gn, p_id, 1, Variant::VECTOR3));
			}

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());

		} break;
		case ShaderGraph::NODE_XFORM_VEC_INV_MULT: {

			gn->set_title("XFVecInvMult");

			CheckBox *button = memnew(CheckBox("RotOnly"));
			button->set_pressed(graph->xform_vec_mult_node_get_no_translation(type, p_id));
			button->connect("toggled", this, "_xform_inv_rev_changed", varray(p_id));

			gn->add_child(button);

			if (graph->is_slot_connected(type, p_id, 0)) {
				gn->add_child(make_label("a", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				gn->add_child(make_editor(String("a: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 1)) {
				hbc->add_child(make_label("xf", Variant::TRANSFORM));
			} else {
				hbc->add_child(make_editor(String("xf: edit..."), gn, p_id, 1, Variant::TRANSFORM));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("out"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);

		} break; // mat4 x vec3 inverse mult (with no-translation option)
		case ShaderGraph::NODE_SCALAR_FUNC: {

			gn->set_title("ScalarFunc");
			static const char *func_name[ShaderGraph::SCALAR_MAX_FUNC] = {
				("Sin"),
				("Cos"),
				("Tan"),
				("ASin"),
				("ACos"),
				("ATan"),
				("SinH"),
				("CosH"),
				("TanH"),
				("Log"),
				("Exp"),
				("Sqrt"),
				("Abs"),
				("Sign"),
				("Floor"),
				("Round"),
				("Ceil"),
				("Frac"),
				("Satr"),
				("Neg")
			};

			OptionButton *ob = memnew(OptionButton);
			for (int i = 0; i < ShaderGraph::SCALAR_MAX_FUNC; i++) {

				ob->add_item(func_name[i], i);
			}

			ob->select(graph->scalar_func_node_get_function(type, p_id));
			ob->connect("item_selected", this, "_scalar_func_changed", varray(p_id));
			gn->add_child(ob);

			HBoxContainer *hbc = memnew(HBoxContainer);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("in", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("in: ") + Variant(v), gn, p_id, 0, Variant::REAL, hint_spin));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // scalar function (sin: { } break; cos: { } break; etc)
		case ShaderGraph::NODE_VEC_FUNC: {

			gn->set_title("VecFunc");
			static const char *func_name[ShaderGraph::VEC_MAX_FUNC] = {
				("Normalize"),
				("Saturate"),
				("Negate"),
				("Reciprocal"),
				("RGB to HSV"),
				("HSV to RGB"),
			};

			OptionButton *ob = memnew(OptionButton);
			for (int i = 0; i < ShaderGraph::VEC_MAX_FUNC; i++) {

				ob->add_item(func_name[i], i);
			}

			ob->select(graph->vec_func_node_get_function(type, p_id));
			ob->connect("item_selected", this, "_vec_func_changed", varray(p_id));
			gn->add_child(ob);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("in", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("in: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("out")));
			gn->add_child(hbc);

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);

		} break; // vector function (normalize: { } break; negate: { } break; reciprocal: { } break; rgb2hsv: { } break; hsv2rgb: { } break; etc: { } break; etc)
		case ShaderGraph::NODE_VEC_LEN: {
			gn->set_title("VecLength");
			HBoxContainer *hbc = memnew(HBoxContainer);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("in", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("in: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("len")));
			gn->add_child(hbc);

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // vec3 length
		case ShaderGraph::NODE_DOT_PROD: {

			gn->set_title("DotProduct");
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("a: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("dp")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("b: ") + v, gn, p_id, 1, Variant::VECTOR3));
			}

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());

		} break; // vec3 . vec3 (dot product -> scalar output)
		case ShaderGraph::NODE_VEC_TO_SCALAR: {

			gn->set_title("Vec2Scalar");
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("vec", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("vec: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("x"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			l = memnew(Label("y"));
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);
			l = memnew(Label("z"));
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);
			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);
			gn->set_slot(2, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // 1 vec3 input: { } break; 3 scalar outputs
		case ShaderGraph::NODE_SCALAR_TO_VEC: {

			gn->set_title("Scalar2Vec");
			HBoxContainer *hbc = memnew(HBoxContainer);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("x", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("x: ") + Variant(v), gn, p_id, 0, Variant::REAL));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("vec")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("y", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("y: ") + Variant(v), gn, p_id, 1, Variant::REAL));
			}
			if (graph->is_slot_connected(type, p_id, 2)) {
				gn->add_child(make_label("in", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 2);
				gn->add_child(make_editor(String("in: ") + Variant(v), gn, p_id, 2, Variant::REAL));
			}

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());

		} break; // 3 scalar input: { } break; 1 vec3 output
		case ShaderGraph::NODE_VEC_TO_XFORM: {

			gn->set_title("Vec2XForm");
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("x", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("x: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("xf")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("y", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("y: ") + v, gn, p_id, 1, Variant::VECTOR3));
			}
			if (graph->is_slot_connected(type, p_id, 2)) {
				gn->add_child(make_label("z", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 2);
				gn->add_child(make_editor(String("z: ") + v, gn, p_id, 2, Variant::VECTOR3));
			}
			if (graph->is_slot_connected(type, p_id, 3)) {
				gn->add_child(make_label("ofs", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 3);
				gn->add_child(make_editor(String("ofs: ") + v, gn, p_id, 3, Variant::VECTOR3));
			}

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM]);
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());
			gn->set_slot(3, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());

		} break; // 3 vec input: { } break; 1 xform output
		case ShaderGraph::NODE_XFORM_TO_VEC: {

			gn->set_title("XForm2Vec");

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("fx", Variant::TRANSFORM));
			} else {
				hbc->add_child(make_editor(String("fx: edit..."), gn, p_id, 0, Variant::TRANSFORM));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("x"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			l = memnew(Label("y"));
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);
			l = memnew(Label("z"));
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);
			l = memnew(Label("ofs"));
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(3, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);

		} break; // 3 vec input: { } break; 1 xform output
		case ShaderGraph::NODE_SCALAR_INTERP: {

			gn->set_title("ScalarInterp");
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("a: ") + Variant(v), gn, p_id, 0, Variant::REAL, hint_spin));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("interp")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("b: ") + Variant(v), gn, p_id, 1, Variant::REAL, hint_spin));
			}
			if (graph->is_slot_connected(type, p_id, 2)) {
				gn->add_child(make_label("c", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 2);
				gn->add_child(make_editor(String("c: ") + Variant(v), gn, p_id, 2, Variant::REAL, hint_slider));
			}

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());

		} break; // scalar interpolation (with optional curve)
		case ShaderGraph::NODE_VEC_INTERP: {

			gn->set_title("VecInterp");
			HBoxContainer *hbc = memnew(HBoxContainer);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("a", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("a: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			hbc->add_child(memnew(Label("interp")));
			gn->add_child(hbc);
			if (graph->is_slot_connected(type, p_id, 1)) {
				gn->add_child(make_label("b", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 1);
				gn->add_child(make_editor(String("b: ") + v, gn, p_id, 1, Variant::VECTOR3));
			}
			if (graph->is_slot_connected(type, p_id, 2)) {
				gn->add_child(make_label("c", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 2);
				gn->add_child(make_editor(String("c: ") + Variant(v), gn, p_id, 2, Variant::REAL, hint_slider));
			}

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], false, 0, Color());
			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], false, 0, Color());

		} break; // vec3 interpolation  (with optional curve)
		case ShaderGraph::NODE_COLOR_RAMP: {

			gn->set_title("ColorRamp");
			GraphColorRampEdit *ramp = memnew(GraphColorRampEdit);

			DVector<real_t> offsets = graph->color_ramp_node_get_offsets(type, p_id);
			DVector<Color> colors = graph->color_ramp_node_get_colors(type, p_id);

			int oc = offsets.size();

			if (oc) {
				DVector<real_t>::Read rofs = offsets.read();
				DVector<Color>::Read rcol = colors.read();

				Vector<float> ofsv;
				Vector<Color> colorv;
				for (int i = 0; i < oc; i++) {
					ofsv.push_back(rofs[i]);
					colorv.push_back(rcol[i]);
				}

				ramp->set_ramp(ofsv, colorv);
			}

			ramp->connect("ramp_changed", this, "_color_ramp_changed", varray(p_id, ramp));
			ramp->set_custom_minimum_size(Size2(128, 1));
			gn->add_child(ramp);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("c", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("c: ") + Variant(v), gn, p_id, 0, Variant::REAL, hint_slider));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("rgb"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			l = memnew(Label("alpha"));
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(2, false, ShaderGraph::SLOT_MAX, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // scalar interpolation (with optional curve)
		case ShaderGraph::NODE_CURVE_MAP: {

			gn->set_title("CurveMap");
			GraphCurveMapEdit *map = memnew(GraphCurveMapEdit);

			DVector<Vector2> points = graph->curve_map_node_get_points(type, p_id);

			int oc = points.size();

			if (oc) {
				DVector<Vector2>::Read rofs = points.read();

				Vector<Vector2> ofsv;
				for (int i = 0; i < oc; i++) {
					ofsv.push_back(rofs[i]);
				}

				map->set_points(ofsv);
			}
			map->connect("curve_changed", this, "_curve_changed", varray(p_id, map));

			//map->connect("map_changed",this,"_curve_map_changed",varray(p_id,map));
			map->set_custom_minimum_size(Size2(128, 64));
			gn->add_child(map);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("c", Variant::REAL));
			} else {
				float v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("c: ") + Variant(v), gn, p_id, 0, Variant::REAL, hint_slider));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("cmap"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);

			gn->set_slot(1, true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR], true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // scalar interpolation (with optional curve)

		case ShaderGraph::NODE_SCALAR_INPUT: {

			gn->set_title("ScalarUniform");
			LineEdit *le = memnew(LineEdit);
			gn->add_child(le);
			le->set_text(graph->input_node_get_name(type, p_id));
			le->connect("text_entered", this, "_input_name_changed", varray(p_id, le));
			SpinBox *sb = memnew(SpinBox);
			sb->set_min(-100000);
			sb->set_max(100000);
			sb->set_step(0.001);
			sb->set_val(graph->scalar_input_node_get_value(type, p_id));
			sb->connect("value_changed", this, "_scalar_input_changed", varray(p_id));
			gn->add_child(sb);
			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // scalar uniform (assignable in material)
		case ShaderGraph::NODE_VEC_INPUT: {

			gn->set_title("VectorUniform");
			LineEdit *le = memnew(LineEdit);
			gn->add_child(le);
			le->set_text(graph->input_node_get_name(type, p_id));
			le->connect("text_entered", this, "_input_name_changed", varray(p_id, le));
			Array v3p(true);
			for (int i = 0; i < 3; i++) {
				HBoxContainer *hbc = memnew(HBoxContainer);
				Label *l = memnew(Label);
				l->set_text(String::chr('X' + i));
				hbc->add_child(l);
				SpinBox *sb = memnew(SpinBox);
				sb->set_h_size_flags(Control::SIZE_EXPAND_FILL);
				sb->set_min(-100000);
				sb->set_max(100000);
				sb->set_step(0.001);
				sb->set_val(graph->vec_input_node_get_value(type, p_id)[i]);
				sb->connect("value_changed", this, "_vec_input_changed", varray(p_id, v3p));
				v3p.push_back(sb);
				hbc->add_child(sb);
				gn->add_child(hbc);
			}
			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);

		} break; // vec3 uniform (assignable in material)
		case ShaderGraph::NODE_RGB_INPUT: {

			gn->set_title("ColorUniform");
			LineEdit *le = memnew(LineEdit);
			gn->add_child(le);
			le->set_text(graph->input_node_get_name(type, p_id));
			le->connect("text_entered", this, "_input_name_changed", varray(p_id, le));
			ColorPickerButton *cpb = memnew(ColorPickerButton);
			cpb->set_color(graph->rgb_input_node_get_value(type, p_id));
			cpb->connect("color_changed", this, "_rgb_input_changed", varray(p_id));
			gn->add_child(cpb);
			Label *l = memnew(Label);
			l->set_text("RGB");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);
			l = memnew(Label);
			l->set_text("Alpha");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(2, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(3, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // color uniform (assignable in material)
		case ShaderGraph::NODE_XFORM_INPUT: {
			gn->set_title("XFUniform");
			LineEdit *le = memnew(LineEdit);
			gn->add_child(le);
			le->set_text(graph->input_node_get_name(type, p_id));
			le->connect("text_entered", this, "_input_name_changed", varray(p_id, le));
			ToolButton *edit = memnew(ToolButton);
			edit->set_text("edit..");
			edit->connect("pressed", this, "_xform_input_changed", varray(p_id, edit));
			gn->add_child(edit);
			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_XFORM, typecol[ShaderGraph::SLOT_TYPE_XFORM]);

		} break; // mat4 uniform (assignable in material)
		case ShaderGraph::NODE_TEXTURE_INPUT: {

			gn->set_title("TexUniform");
			LineEdit *le = memnew(LineEdit);
			gn->add_child(le);
			le->set_text(graph->input_node_get_name(type, p_id));
			le->connect("text_entered", this, "_input_name_changed", varray(p_id, le));
			TextureFrame *tex = memnew(TextureFrame);
			tex->set_expand(true);
			tex->set_custom_minimum_size(Size2(80, 80));
			tex->set_drag_forwarding(this);
			gn->add_child(tex);
			tex->set_ignore_mouse(false);
			tex->set_texture(graph->texture_input_node_get_value(type, p_id));
			ToolButton *edit = memnew(ToolButton);
			edit->set_text("edit..");
			edit->connect("pressed", this, "_tex_edited", varray(p_id, edit));
			gn->add_child(edit);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("UV", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("UV: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("RGB"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			l = memnew(Label);
			l->set_text("Alpha");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(3, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(4, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // texture input (assignable in material)
		case ShaderGraph::NODE_CUBEMAP_INPUT: {

			gn->set_title("TexUniform");
			LineEdit *le = memnew(LineEdit);
			gn->add_child(le);
			le->set_text(graph->input_node_get_name(type, p_id));
			le->connect("text_entered", this, "_input_name_changed", varray(p_id, le));

			ToolButton *edit = memnew(ToolButton);
			edit->set_text("edit..");
			edit->connect("pressed", this, "_cube_edited", varray(p_id, edit));
			gn->add_child(edit);

			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("UV", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("UV: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("RGB"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			l = memnew(Label);
			l->set_text("Alpha");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(2, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(3, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // cubemap input (assignable in material)
		case ShaderGraph::NODE_DEFAULT_TEXTURE: {

			gn->set_title("CanvasItemTex");
			HBoxContainer *hbc = memnew(HBoxContainer);
			hbc->add_constant_override("separation", 0);
			if (graph->is_slot_connected(type, p_id, 0)) {
				hbc->add_child(make_label("UV", Variant::VECTOR3));
			} else {
				Vector3 v = graph->default_get_value(type, p_id, 0);
				hbc->add_child(make_editor(String("UV: ") + v, gn, p_id, 0, Variant::VECTOR3));
			}
			hbc->add_spacer();
			Label *l = memnew(Label("RGB"));
			l->set_align(Label::ALIGN_RIGHT);
			hbc->add_child(l);
			gn->add_child(hbc);
			l = memnew(Label);
			l->set_text("Alpha");
			l->set_align(Label::ALIGN_RIGHT);
			gn->add_child(l);

			gn->set_slot(0, true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC], true, ShaderGraph::SLOT_TYPE_VEC, typecol[ShaderGraph::SLOT_TYPE_VEC]);
			gn->set_slot(1, false, 0, Color(), true, ShaderGraph::SLOT_TYPE_SCALAR, typecol[ShaderGraph::SLOT_TYPE_SCALAR]);

		} break; // screen texture sampler (takes UV) (only usable in fragment case Shader)

		case ShaderGraph::NODE_OUTPUT: {
			gn->set_title("Output");
			gn->set_show_close_button(false);

			List<ShaderGraph::SlotInfo> si;
			ShaderGraph::get_input_output_node_slot_info(graph->get_mode(), type, &si);

			Array colors;
			colors.push_back("Color");
			colors.push_back("LightColor");
			colors.push_back("Light");
			colors.push_back("ShadowColor");
			colors.push_back("Diffuse");
			colors.push_back("Specular");
			colors.push_back("Emmision");
			Array reals;
			reals.push_back("Alpha");
			reals.push_back("DiffuseAlpha");
			reals.push_back("NormalMapDepth");
			reals.push_back("SpecExp");
			reals.push_back("Glow");
			reals.push_back("ShadeParam");
			reals.push_back("SpecularExp");
			reals.push_back("LightAlpha");
			reals.push_back("ShadowAlpha");
			reals.push_back("PointSize");
			reals.push_back("Discard");

			int idx = 0;
			for (List<ShaderGraph::SlotInfo>::Element *E = si.front(); E; E = E->next()) {
				ShaderGraph::SlotInfo &s = E->get();
				if (s.dir == ShaderGraph::SLOT_OUT) {
					Variant::Type v;
					if (colors.find(s.name) >= 0)
						v = Variant::COLOR;
					else if (reals.find(s.name) >= 0)
						v = Variant::REAL;
					else
						v = Variant::VECTOR3;
					gn->add_child(make_label(s.name, v));
					gn->set_slot(idx, true, s.type, typecol[s.type], false, 0, Color());
					idx++;
				}
			}

		} break; // output (case Shader type dependent)
		case ShaderGraph::NODE_COMMENT: {
			gn->set_title("Comment");
			TextEdit *te = memnew(TextEdit);
			te->set_custom_minimum_size(Size2(100, 100));
			gn->add_child(te);
			te->set_text(graph->comment_node_get_text(type, p_id));
			te->connect("text_changed", this, "_comment_edited", varray(p_id, te));

		} break; // comment
	}

	gn->connect("dragged", this, "_node_moved", varray(p_id));
	gn->connect("close_request", this, "_node_removed", varray(p_id), CONNECT_DEFERRED);
	graph_edit->add_child(gn);
	node_map[p_id] = gn;
	gn->set_offset(graph->node_get_pos(type, p_id));
}

void ShaderGraphView::_update_graph() {

	if (block_update)
		return;

	for (Map<int, GraphNode *>::Element *E = node_map.front(); E; E = E->next()) {

		memdelete(E->get());
	}

	node_map.clear();

	if (!graph.is_valid())
		return;

	List<int> nl;
	graph->get_node_list(type, &nl);

	for (List<int>::Element *E = nl.front(); E; E = E->next()) {

		_create_node(E->get());
	}
	graph_edit->clear_connections();

	List<ShaderGraph::Connection> connections;
	graph->get_node_connections(type, &connections);
	for (List<ShaderGraph::Connection>::Element *E = connections.front(); E; E = E->next()) {

		ERR_CONTINUE(!node_map.has(E->get().src_id) || !node_map.has(E->get().dst_id));
		graph_edit->connect_node(node_map[E->get().src_id]->get_name(), E->get().src_slot, node_map[E->get().dst_id]->get_name(), E->get().dst_slot);
	}
}

void ShaderGraphView::_sg_updated() {

	if (!graph.is_valid())
		return;
	switch (graph->get_graph_error(type)) {
		case ShaderGraph::GRAPH_OK: status->set_text(""); break;
		case ShaderGraph::GRAPH_ERROR_CYCLIC: status->set_text(TTR("Error: Cyclic Connection Link")); break;
		case ShaderGraph::GRAPH_ERROR_MISSING_CONNECTIONS: status->set_text(TTR("Error: Missing Input Connections")); break;
	}
}

Variant ShaderGraphView::get_drag_data_fw(const Point2 &p_point, Control *p_from) {
	TextureFrame *frame = p_from->cast_to<TextureFrame>();
	if (!frame)
		return Variant();

	if (!frame->get_texture().is_valid())
		return Variant();

	RES res = frame->get_texture();
	return EditorNode::get_singleton()->drag_resource(res, p_from);

	return Variant();
}

bool ShaderGraphView::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
	if (p_data.get_type() != Variant::DICTIONARY)
		return false;

	Dictionary d = p_data;

	if (d.has("type")) {
		if (d["type"] == "resource" && d.has("resource")) {
			Variant val = d["resource"];

			if (val.get_type() == Variant::OBJECT) {
				RES res = val;
				if (res.is_valid() && res->cast_to<Texture>())
					return true;
			}
		} else if (d["type"] == "files" && d.has("files")) {
			Vector<String> files = d["files"];
			if (files.size() != 1)
				return false;
			return (ResourceLoader::get_resource_type(files[0]) == "ImageTexture");
		}
	}

	return false;
}

void ShaderGraphView::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
	if (!can_drop_data_fw(p_point, p_data, p_from))
		return;

	TextureFrame *frame = p_from->cast_to<TextureFrame>();
	if (!frame)
		return;

	Dictionary d = p_data;
	Ref<Texture> tex;

	if (d.has("type")) {
		if (d["type"] == "resource" && d.has("resource")) {
			Variant val = d["resource"];

			if (val.get_type() == Variant::OBJECT) {
				RES res = val;
				if (res.is_valid())
					tex = Ref<Texture>(res->cast_to<Texture>());
			}
		} else if (d["type"] == "files" && d.has("files")) {
			Vector<String> files = d["files"];
			RES res = ResourceLoader::load(files[0]);
			if (res.is_valid())
				tex = Ref<Texture>(res->cast_to<Texture>());
		}
	}

	if (!tex.is_valid()) return;

	GraphNode *gn = frame->get_parent()->cast_to<GraphNode>();
	if (!gn) return;

	int id = -1;
	for (Map<int, GraphNode *>::Element *E = node_map.front(); E; E = E->next())
		if (E->get() == gn) {
			id = E->key();
			break;
		}
	print_line(String::num(double(id)));
	if (id < 0) return;

	if (graph->node_get_type(type, id) == ShaderGraph::NODE_TEXTURE_INPUT) {

		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action(TTR("Change Texture Uniform"));
		ur->add_do_method(graph.ptr(), "texture_input_node_set_value", type, id, tex);
		ur->add_undo_method(graph.ptr(), "texture_input_node_set_value", type, id, graph->texture_input_node_get_value(type, id));
		ur->add_do_method(this, "_update_graph");
		ur->add_undo_method(this, "_update_graph");
		ur->commit_action();
	}
}

void ShaderGraphView::set_graph(Ref<ShaderGraph> p_graph) {

	if (graph.is_valid()) {
		graph->disconnect("updated", this, "_sg_updated");
	}
	graph = p_graph;
	if (graph.is_valid()) {
		graph->connect("updated", this, "_sg_updated");
	}
	_update_graph();
	_sg_updated();
}

void ShaderGraphView::_notification(int p_what) {

	if (p_what == NOTIFICATION_ENTER_TREE) {

		ped_popup->connect("variant_changed", this, "_variant_edited");
	}
}

void ShaderGraphView::add_node(int p_type, const Vector2 &location) {

	if (p_type == ShaderGraph::NODE_INPUT && graph->node_count(type, p_type) > 0)
		return;

	List<int> existing;
	graph->get_node_list(type, &existing);
	existing.sort();
	int newid = 1;
	for (List<int>::Element *E = existing.front(); E; E = E->next()) {
		if (!E->next() || (E->get() + 1 != E->next()->get())) {
			newid = E->get() + 1;
			break;
		}
	}

	Vector2 init_ofs = location;
	while (true) {
		bool valid = true;
		for (List<int>::Element *E = existing.front(); E; E = E->next()) {
			Vector2 pos = graph->node_get_pos(type, E->get());
			if (init_ofs == pos) {
				init_ofs += Vector2(20, 20);
				valid = false;
				break;
			}
		}

		if (valid)
			break;
	}
	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action(TTR("Add Shader Graph Node"));
	ur->add_do_method(graph.ptr(), "node_add", type, p_type, newid);
	ur->add_do_method(graph.ptr(), "node_set_pos", type, newid, init_ofs);
	ur->add_undo_method(graph.ptr(), "node_remove", type, newid);
	ur->add_do_method(this, "_update_graph");
	ur->add_undo_method(this, "_update_graph");
	ur->commit_action();
}

void ShaderGraphView::_bind_methods() {

	ObjectTypeDB::bind_method("_update_graph", &ShaderGraphView::_update_graph);
	ObjectTypeDB::bind_method("_begin_node_move", &ShaderGraphView::_begin_node_move);
	ObjectTypeDB::bind_method("_node_moved", &ShaderGraphView::_node_moved);
	ObjectTypeDB::bind_method("_end_node_move", &ShaderGraphView::_end_node_move);
	ObjectTypeDB::bind_method("_move_node", &ShaderGraphView::_move_node);
	ObjectTypeDB::bind_method("_node_removed", &ShaderGraphView::_node_removed);
	ObjectTypeDB::bind_method("_connection_request", &ShaderGraphView::_connection_request);
	ObjectTypeDB::bind_method("_disconnection_request", &ShaderGraphView::_disconnection_request);
	ObjectTypeDB::bind_method("_duplicate_nodes_request", &ShaderGraphView::_duplicate_nodes_request);
	ObjectTypeDB::bind_method("_duplicate_nodes", &ShaderGraphView::_duplicate_nodes);
	ObjectTypeDB::bind_method("_delete_nodes_request", &ShaderGraphView::_delete_nodes_request);

	ObjectTypeDB::bind_method("_default_changed", &ShaderGraphView::_default_changed);
	ObjectTypeDB::bind_method("_scalar_const_changed", &ShaderGraphView::_scalar_const_changed);
	ObjectTypeDB::bind_method("_vec_const_changed", &ShaderGraphView::_vec_const_changed);
	ObjectTypeDB::bind_method("_rgb_const_changed", &ShaderGraphView::_rgb_const_changed);
	ObjectTypeDB::bind_method("_xform_const_changed", &ShaderGraphView::_xform_const_changed);
	ObjectTypeDB::bind_method("_scalar_op_changed", &ShaderGraphView::_scalar_op_changed);
	ObjectTypeDB::bind_method("_vec_op_changed", &ShaderGraphView::_vec_op_changed);
	ObjectTypeDB::bind_method("_vec_scalar_op_changed", &ShaderGraphView::_vec_scalar_op_changed);
	ObjectTypeDB::bind_method("_rgb_op_changed", &ShaderGraphView::_rgb_op_changed);
	ObjectTypeDB::bind_method("_xform_inv_rev_changed", &ShaderGraphView::_xform_inv_rev_changed);
	ObjectTypeDB::bind_method("_scalar_func_changed", &ShaderGraphView::_scalar_func_changed);
	ObjectTypeDB::bind_method("_vec_func_changed", &ShaderGraphView::_vec_func_changed);
	ObjectTypeDB::bind_method("_scalar_input_changed", &ShaderGraphView::_scalar_input_changed);
	ObjectTypeDB::bind_method("_vec_input_changed", &ShaderGraphView::_vec_input_changed);
	ObjectTypeDB::bind_method("_xform_input_changed", &ShaderGraphView::_xform_input_changed);
	ObjectTypeDB::bind_method("_rgb_input_changed", &ShaderGraphView::_rgb_input_changed);
	ObjectTypeDB::bind_method("_tex_input_change", &ShaderGraphView::_tex_input_change);
	ObjectTypeDB::bind_method("_cube_input_change", &ShaderGraphView::_cube_input_change);
	ObjectTypeDB::bind_method("_input_name_changed", &ShaderGraphView::_input_name_changed);
	ObjectTypeDB::bind_method("_tex_edited", &ShaderGraphView::_tex_edited);
	ObjectTypeDB::bind_method("_variant_edited", &ShaderGraphView::_variant_edited);
	ObjectTypeDB::bind_method("_cube_edited", &ShaderGraphView::_cube_edited);
	ObjectTypeDB::bind_method("_comment_edited", &ShaderGraphView::_comment_edited);
	ObjectTypeDB::bind_method("_color_ramp_changed", &ShaderGraphView::_color_ramp_changed);
	ObjectTypeDB::bind_method("_curve_changed", &ShaderGraphView::_curve_changed);

	ObjectTypeDB::bind_method(_MD("get_drag_data_fw"), &ShaderGraphView::get_drag_data_fw);
	ObjectTypeDB::bind_method(_MD("can_drop_data_fw"), &ShaderGraphView::can_drop_data_fw);
	ObjectTypeDB::bind_method(_MD("drop_data_fw"), &ShaderGraphView::drop_data_fw);

	ObjectTypeDB::bind_method("_sg_updated", &ShaderGraphView::_sg_updated);
}

ShaderGraphView::ShaderGraphView(ShaderGraph::ShaderType p_type) {

	type = p_type;
	graph_edit = memnew(GraphEdit);
	block_update = false;
	ped_popup = memnew(CustomPropertyEditor);
	graph_edit->add_child(ped_popup);
	status = memnew(Label);
	graph_edit->get_top_layer()->add_child(status);
	graph_edit->connect("_begin_node_move", this, "_begin_node_move");
	graph_edit->connect("_end_node_move", this, "_end_node_move");
	status->set_pos(Vector2(5, 5));
	status->add_color_override("font_color_shadow", Color(0, 0, 0));
	status->add_color_override("font_color", Color(1, 0.4, 0.3));
	status->add_constant_override("shadow_as_outline", 1);
	status->add_constant_override("shadow_offset_x", 2);
	status->add_constant_override("shadow_offset_y", 2);
	status->set_text("");
}

//////////////edit//////////////
void ShaderGraphEditor::edit(Ref<ShaderGraph> p_shader) {

	for (int i = 0; i < ShaderGraph::SHADER_TYPE_MAX; i++) {
		graph_edits[i]->set_graph(p_shader);
	}
}

void ShaderGraphEditor::_add_node(int p_type) {

	ShaderGraph::ShaderType shader_type = ShaderGraph::ShaderType(tabs->get_current_tab());
	graph_edits[shader_type]->add_node(p_type, next_location);
}

void ShaderGraphEditor::_popup_requested(const Vector2 &p_position) {
	Vector2 scroll_ofs = graph_edits[tabs->get_current_tab()]->get_graph_edit()->get_scroll_ofs();
	next_location = get_local_mouse_pos() + scroll_ofs;
	popup->set_global_pos(p_position);
	popup->set_size(Size2(200, 0));
	popup->popup();
	popup->call_deferred("grab_click_focus");
	popup->set_invalidate_click_until_motion();
}

void ShaderGraphEditor::_notification(int p_what) {
	if (p_what == NOTIFICATION_ENTER_TREE) {

		for (int i = 0; i < ShaderGraph::NODE_TYPE_MAX; i++) {

			if (i == ShaderGraph::NODE_OUTPUT)
				continue;
			if (!_2d && i == ShaderGraph::NODE_DEFAULT_TEXTURE)
				continue;

			String nn = node_names[i];
			String ic = nn.get_slice(":", 0);
			String v = nn.get_slice(":", 1);
			bool addsep = false;
			if (nn.ends_with(":")) {
				addsep = true;
			}
			popup->add_icon_item(get_icon(ic, "EditorIcons"), v, i);
			if (addsep)
				popup->add_separator();
		}
		popup->connect("item_pressed", this, "_add_node");
	}
}

void ShaderGraphEditor::_bind_methods() {

	ObjectTypeDB::bind_method("_add_node", &ShaderGraphEditor::_add_node);
	ObjectTypeDB::bind_method("_popup_requested", &ShaderGraphEditor::_popup_requested);
}

const char *ShaderGraphEditor::node_names[ShaderGraph::NODE_TYPE_MAX] = {
	("GraphInput:Input"), // all inputs (shader type dependent)
	("GraphScalar:Scalar Constant"), //scalar constant
	("GraphVector:Vector Constant"), //vec3 constant
	("GraphRgb:RGB Constant"), //rgb constant (shows a color picker instead)
	("GraphXform:XForm Constant"), // 4x4 matrix constant
	("GraphTime:Time:"), // time in seconds
	("GraphTexscreen:Screen Sample"), // screen texture sampler (takes uv) (only usable in fragment shader)
	("GraphScalarOp:Scalar Operator"), // scalar vs scalar op (mul", add", div", etc)
	("GraphVecOp:Vector Operator"), // vec3 vs vec3 op (mul",ad",div",crossprod",etc)
	("GraphVecScalarOp:Scalar+Vector Operator"), // vec3 vs scalar op (mul", add", div", etc)
	("GraphRgbOp:RGB Operator:"), // vec3 vs vec3 rgb op (with scalar amount)", like brighten", darken", burn", dodge", multiply", etc.
	("GraphXformMult:XForm Multiply"), // mat4 x mat4
	("GraphXformVecMult:XForm+Vector Multiply"), // mat4 x vec3 mult (with no-translation option)
	("GraphXformVecImult:Form+Vector InvMultiply:"), // mat4 x vec3 inverse mult (with no-translation option)
	("GraphXformScalarFunc:Scalar Function"), // scalar function (sin", cos", etc)
	("GraphXformVecFunc:Vector Function"), // vector function (normalize", negate", reciprocal", rgb2hsv", hsv2rgb", etc", etc)
	("GraphVecLength:Vector Length"), // vec3 length
	("GraphVecDp:Dot Product:"), // vec3 . vec3 (dot product -> scalar output)
	("GraphVecToScalars:Vector -> Scalars"), // 1 vec3 input", 3 scalar outputs
	("GraphScalarsToVec:Scalars -> Vector"), // 3 scalar input", 1 vec3 output
	("GraphXformToVecs:XForm -> Vectors"), // 3 vec input", 1 xform output
	("GraphVecsToXform:Vectors -> XForm:"), // 3 vec input", 1 xform output
	("GraphScalarInterp:Scalar Interpolate"), // scalar interpolation (with optional curve)
	("GraphVecInterp:Vector Interpolate:"), // vec3 interpolation  (with optional curve)
	("GraphColorRamp:Color Ramp"), // vec3 interpolation  (with optional curve)
	("GraphCurveMap:Curve Remap:"), // vec3 interpolation  (with optional curve)
	("GraphScalarUniform:Scalar Uniform"), // scalar uniform (assignable in material)
	("GraphVectorUniform:Vector Uniform"), // vec3 uniform (assignable in material)
	("GraphRgbUniform:RGB Uniform"), // color uniform (assignable in material)
	("GraphXformUniform:XForm Uniform"), // mat4 uniform (assignable in material)
	("GraphTextureUniform:Texture Uniform"), // texture input (assignable in material)
	("GraphCubeUniform:CubeMap Uniform:"), // cubemap input (assignable in material)
	("GraphDefaultTexture:CanvasItem Texture:"), // cubemap input (assignable in material)
	("Output"), // output (shader type dependent)
	("GraphComment:Comment"), // comment

};
ShaderGraphEditor::ShaderGraphEditor(bool p_2d) {
	_2d = p_2d;

	popup = memnew(PopupMenu);
	add_child(popup);

	tabs = memnew(TabContainer);
	tabs->set_v_size_flags(SIZE_EXPAND_FILL);
	add_child(tabs);
	const char *sname[ShaderGraph::SHADER_TYPE_MAX] = {
		"Vertex",
		"Fragment",
		"Light"
	};
	for (int i = 0; i < ShaderGraph::SHADER_TYPE_MAX; i++) {

		graph_edits[i] = memnew(ShaderGraphView(ShaderGraph::ShaderType(i)));
		add_child(graph_edits[i]);
		graph_edits[i]->get_graph_edit()->set_name(sname[i]);
		tabs->add_child(graph_edits[i]->get_graph_edit());
		graph_edits[i]->get_graph_edit()->connect("connection_request", graph_edits[i], "_connection_request");
		graph_edits[i]->get_graph_edit()->connect("disconnection_request", graph_edits[i], "_disconnection_request");
		graph_edits[i]->get_graph_edit()->connect("duplicate_nodes_request", graph_edits[i], "_duplicate_nodes_request");
		graph_edits[i]->get_graph_edit()->connect("popup_request", this, "_popup_requested");
		graph_edits[i]->get_graph_edit()->connect("delete_nodes_request", graph_edits[i], "_delete_nodes_request");
		graph_edits[i]->get_graph_edit()->set_right_disconnects(true);
	}

	tabs->set_current_tab(1);

	set_custom_minimum_size(Size2(100, 300));
}

void ShaderGraphEditorPlugin::edit(Object *p_object) {

	shader_editor->edit(p_object->cast_to<ShaderGraph>());
}

bool ShaderGraphEditorPlugin::handles(Object *p_object) const {

	ShaderGraph *shader = p_object->cast_to<ShaderGraph>();
	if (!shader)
		return false;
	if (_2d)
		return shader->get_mode() == Shader::MODE_CANVAS_ITEM;
	else
		return shader->get_mode() == Shader::MODE_MATERIAL;
}

void ShaderGraphEditorPlugin::make_visible(bool p_visible) {

	if (p_visible) {
		shader_editor->show();
	} else {

		shader_editor->hide();
	}
}

ShaderGraphEditorPlugin::ShaderGraphEditorPlugin(EditorNode *p_node, bool p_2d) {

	_2d = p_2d;
	editor = p_node;
	shader_editor = memnew(ShaderGraphEditor(p_2d));
	shader_editor->hide();
	if (p_2d)
		CanvasItemEditor::get_singleton()->get_bottom_split()->add_child(shader_editor);
	else
		SpatialEditor::get_singleton()->get_shader_split()->add_child(shader_editor);

	//	editor->get_viewport()->add_child(shader_editor);
	//	shader_editor->set_area_as_parent_rect();
	//	shader_editor->hide();
}

ShaderGraphEditorPlugin::~ShaderGraphEditorPlugin() {
}