godot/scene/gui/graph_node.cpp
2020-05-14 21:57:34 +02:00

734 lines
21 KiB
C++

/*************************************************************************/
/* graph_node.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 "graph_node.h"
#include "core/method_bind_ext.gen.inc"
bool GraphNode::_set(const StringName &p_name, const Variant &p_value) {
if (!p_name.operator String().begins_with("slot/")) {
return false;
}
int idx = p_name.operator String().get_slice("/", 1).to_int();
String what = p_name.operator String().get_slice("/", 2);
Slot si;
if (slot_info.has(idx)) {
si = slot_info[idx];
}
if (what == "left_enabled") {
si.enable_left = p_value;
} else if (what == "left_type") {
si.type_left = p_value;
} else if (what == "left_color") {
si.color_left = p_value;
} else if (what == "right_enabled") {
si.enable_right = p_value;
} else if (what == "right_type") {
si.type_right = p_value;
} else if (what == "right_color") {
si.color_right = p_value;
} else {
return false;
}
set_slot(idx, si.enable_left, si.type_left, si.color_left, si.enable_right, si.type_right, si.color_right);
update();
return true;
}
bool GraphNode::_get(const StringName &p_name, Variant &r_ret) const {
if (!p_name.operator String().begins_with("slot/")) {
return false;
}
int idx = p_name.operator String().get_slice("/", 1).to_int();
String what = p_name.operator String().get_slice("/", 2);
Slot si;
if (slot_info.has(idx)) {
si = slot_info[idx];
}
if (what == "left_enabled") {
r_ret = si.enable_left;
} else if (what == "left_type") {
r_ret = si.type_left;
} else if (what == "left_color") {
r_ret = si.color_left;
} else if (what == "right_enabled") {
r_ret = si.enable_right;
} else if (what == "right_type") {
r_ret = si.type_right;
} else if (what == "right_color") {
r_ret = si.color_right;
} else {
return false;
}
return true;
}
void GraphNode::_get_property_list(List<PropertyInfo> *p_list) const {
int idx = 0;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c || c->is_set_as_toplevel()) {
continue;
}
String base = "slot/" + itos(idx) + "/";
p_list->push_back(PropertyInfo(Variant::BOOL, base + "left_enabled"));
p_list->push_back(PropertyInfo(Variant::INT, base + "left_type"));
p_list->push_back(PropertyInfo(Variant::COLOR, base + "left_color"));
p_list->push_back(PropertyInfo(Variant::BOOL, base + "right_enabled"));
p_list->push_back(PropertyInfo(Variant::INT, base + "right_type"));
p_list->push_back(PropertyInfo(Variant::COLOR, base + "right_color"));
idx++;
}
}
void GraphNode::_resort() {
int sep = get_theme_constant("separation");
Ref<StyleBox> sb = get_theme_stylebox("frame");
bool first = true;
Size2 minsize;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c) {
continue;
}
if (c->is_set_as_toplevel()) {
continue;
}
Size2i size = c->get_combined_minimum_size();
minsize.y += size.y;
minsize.x = MAX(minsize.x, size.x);
if (first) {
first = false;
} else {
minsize.y += sep;
}
}
int vofs = 0;
int w = get_size().x - sb->get_minimum_size().x;
cache_y.clear();
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c) {
continue;
}
if (c->is_set_as_toplevel()) {
continue;
}
Size2i size = c->get_combined_minimum_size();
Rect2 r(sb->get_margin(MARGIN_LEFT), sb->get_margin(MARGIN_TOP) + vofs, w, size.y);
fit_child_in_rect(c, r);
cache_y.push_back(vofs + size.y * 0.5);
vofs += size.y + sep;
}
update();
connpos_dirty = true;
}
bool GraphNode::has_point(const Point2 &p_point) const {
if (comment) {
Ref<StyleBox> comment = get_theme_stylebox("comment");
Ref<Texture2D> resizer = get_theme_icon("resizer");
if (Rect2(get_size() - resizer->get_size(), resizer->get_size()).has_point(p_point)) {
return true;
}
if (Rect2(0, 0, get_size().width, comment->get_margin(MARGIN_TOP)).has_point(p_point)) {
return true;
}
return false;
} else {
return Control::has_point(p_point);
}
}
void GraphNode::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_DRAW: {
Ref<StyleBox> sb;
if (comment) {
sb = get_theme_stylebox(selected ? "commentfocus" : "comment");
} else {
sb = get_theme_stylebox(selected ? "selectedframe" : "frame");
}
//sb=sb->duplicate();
//sb->call("set_modulate",modulate);
Ref<Texture2D> port = get_theme_icon("port");
Ref<Texture2D> close = get_theme_icon("close");
Ref<Texture2D> resizer = get_theme_icon("resizer");
int close_offset = get_theme_constant("close_offset");
int close_h_offset = get_theme_constant("close_h_offset");
Color close_color = get_theme_color("close_color");
Color resizer_color = get_theme_color("resizer_color");
Ref<Font> title_font = get_theme_font("title_font");
int title_offset = get_theme_constant("title_offset");
int title_h_offset = get_theme_constant("title_h_offset");
Color title_color = get_theme_color("title_color");
Point2i icofs = -port->get_size() * 0.5;
int edgeofs = get_theme_constant("port_offset");
icofs.y += sb->get_margin(MARGIN_TOP);
draw_style_box(sb, Rect2(Point2(), get_size()));
switch (overlay) {
case OVERLAY_DISABLED: {
} break;
case OVERLAY_BREAKPOINT: {
draw_style_box(get_theme_stylebox("breakpoint"), Rect2(Point2(), get_size()));
} break;
case OVERLAY_POSITION: {
draw_style_box(get_theme_stylebox("position"), Rect2(Point2(), get_size()));
} break;
}
int w = get_size().width - sb->get_minimum_size().x;
if (show_close) {
w -= close->get_width();
}
draw_string(title_font, Point2(sb->get_margin(MARGIN_LEFT) + title_h_offset, -title_font->get_height() + title_font->get_ascent() + title_offset), title, title_color, w);
if (show_close) {
Vector2 cpos = Point2(w + sb->get_margin(MARGIN_LEFT) + close_h_offset, -close->get_height() + close_offset);
draw_texture(close, cpos, close_color);
close_rect.position = cpos;
close_rect.size = close->get_size();
} else {
close_rect = Rect2();
}
for (Map<int, Slot>::Element *E = slot_info.front(); E; E = E->next()) {
if (E->key() < 0 || E->key() >= cache_y.size()) {
continue;
}
if (!slot_info.has(E->key())) {
continue;
}
const Slot &s = slot_info[E->key()];
//left
if (s.enable_left) {
Ref<Texture2D> p = port;
if (s.custom_slot_left.is_valid()) {
p = s.custom_slot_left;
}
p->draw(get_canvas_item(), icofs + Point2(edgeofs, cache_y[E->key()]), s.color_left);
}
if (s.enable_right) {
Ref<Texture2D> p = port;
if (s.custom_slot_right.is_valid()) {
p = s.custom_slot_right;
}
p->draw(get_canvas_item(), icofs + Point2(get_size().x - edgeofs, cache_y[E->key()]), s.color_right);
}
}
if (resizable) {
draw_texture(resizer, get_size() - resizer->get_size(), resizer_color);
}
} break;
case NOTIFICATION_SORT_CHILDREN: {
_resort();
} break;
case NOTIFICATION_THEME_CHANGED: {
minimum_size_changed();
} break;
}
}
void GraphNode::set_slot(int p_idx, bool p_enable_left, int p_type_left, const Color &p_color_left, bool p_enable_right, int p_type_right, const Color &p_color_right, const Ref<Texture2D> &p_custom_left, const Ref<Texture2D> &p_custom_right) {
ERR_FAIL_COND(p_idx < 0);
if (!p_enable_left && p_type_left == 0 && p_color_left == Color(1, 1, 1, 1) && !p_enable_right && p_type_right == 0 && p_color_right == Color(1, 1, 1, 1)) {
slot_info.erase(p_idx);
return;
}
Slot s;
s.enable_left = p_enable_left;
s.type_left = p_type_left;
s.color_left = p_color_left;
s.enable_right = p_enable_right;
s.type_right = p_type_right;
s.color_right = p_color_right;
s.custom_slot_left = p_custom_left;
s.custom_slot_right = p_custom_right;
slot_info[p_idx] = s;
update();
connpos_dirty = true;
}
void GraphNode::clear_slot(int p_idx) {
slot_info.erase(p_idx);
update();
connpos_dirty = true;
}
void GraphNode::clear_all_slots() {
slot_info.clear();
update();
connpos_dirty = true;
}
bool GraphNode::is_slot_enabled_left(int p_idx) const {
if (!slot_info.has(p_idx)) {
return false;
}
return slot_info[p_idx].enable_left;
}
int GraphNode::get_slot_type_left(int p_idx) const {
if (!slot_info.has(p_idx)) {
return 0;
}
return slot_info[p_idx].type_left;
}
Color GraphNode::get_slot_color_left(int p_idx) const {
if (!slot_info.has(p_idx)) {
return Color(1, 1, 1, 1);
}
return slot_info[p_idx].color_left;
}
bool GraphNode::is_slot_enabled_right(int p_idx) const {
if (!slot_info.has(p_idx)) {
return false;
}
return slot_info[p_idx].enable_right;
}
int GraphNode::get_slot_type_right(int p_idx) const {
if (!slot_info.has(p_idx)) {
return 0;
}
return slot_info[p_idx].type_right;
}
Color GraphNode::get_slot_color_right(int p_idx) const {
if (!slot_info.has(p_idx)) {
return Color(1, 1, 1, 1);
}
return slot_info[p_idx].color_right;
}
Size2 GraphNode::get_minimum_size() const {
Ref<Font> title_font = get_theme_font("title_font");
int sep = get_theme_constant("separation");
Ref<StyleBox> sb = get_theme_stylebox("frame");
bool first = true;
Size2 minsize;
minsize.x = title_font->get_string_size(title).x;
if (show_close) {
Ref<Texture2D> close = get_theme_icon("close");
minsize.x += sep + close->get_width();
}
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c) {
continue;
}
if (c->is_set_as_toplevel()) {
continue;
}
Size2i size = c->get_combined_minimum_size();
minsize.y += size.y;
minsize.x = MAX(minsize.x, size.x);
if (first) {
first = false;
} else {
minsize.y += sep;
}
}
return minsize + sb->get_minimum_size();
}
void GraphNode::set_title(const String &p_title) {
if (title == p_title) {
return;
}
title = p_title;
update();
_change_notify("title");
minimum_size_changed();
}
String GraphNode::get_title() const {
return title;
}
void GraphNode::set_offset(const Vector2 &p_offset) {
offset = p_offset;
emit_signal("offset_changed");
update();
}
Vector2 GraphNode::get_offset() const {
return offset;
}
void GraphNode::set_selected(bool p_selected) {
selected = p_selected;
update();
}
bool GraphNode::is_selected() {
return selected;
}
void GraphNode::set_drag(bool p_drag) {
if (p_drag) {
drag_from = get_offset();
} else {
emit_signal("dragged", drag_from, get_offset()); //useful for undo/redo
}
}
Vector2 GraphNode::get_drag_from() {
return drag_from;
}
void GraphNode::set_show_close_button(bool p_enable) {
show_close = p_enable;
update();
}
bool GraphNode::is_close_button_visible() const {
return show_close;
}
void GraphNode::_connpos_update() {
int edgeofs = get_theme_constant("port_offset");
int sep = get_theme_constant("separation");
Ref<StyleBox> sb = get_theme_stylebox("frame");
conn_input_cache.clear();
conn_output_cache.clear();
int vofs = 0;
int idx = 0;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c) {
continue;
}
if (c->is_set_as_toplevel()) {
continue;
}
Size2i size = c->get_combined_minimum_size();
int y = sb->get_margin(MARGIN_TOP) + vofs;
int h = size.y;
if (slot_info.has(idx)) {
if (slot_info[idx].enable_left) {
ConnCache cc;
cc.pos = Point2i(edgeofs, y + h / 2);
cc.type = slot_info[idx].type_left;
cc.color = slot_info[idx].color_left;
conn_input_cache.push_back(cc);
}
if (slot_info[idx].enable_right) {
ConnCache cc;
cc.pos = Point2i(get_size().width - edgeofs, y + h / 2);
cc.type = slot_info[idx].type_right;
cc.color = slot_info[idx].color_right;
conn_output_cache.push_back(cc);
}
}
if (vofs > 0) {
vofs += sep;
}
vofs += size.y;
idx++;
}
connpos_dirty = false;
}
int GraphNode::get_connection_input_count() {
if (connpos_dirty) {
_connpos_update();
}
return conn_input_cache.size();
}
int GraphNode::get_connection_output_count() {
if (connpos_dirty) {
_connpos_update();
}
return conn_output_cache.size();
}
Vector2 GraphNode::get_connection_input_position(int p_idx) {
if (connpos_dirty) {
_connpos_update();
}
ERR_FAIL_INDEX_V(p_idx, conn_input_cache.size(), Vector2());
Vector2 pos = conn_input_cache[p_idx].pos;
pos.x *= get_scale().x;
pos.y *= get_scale().y;
return pos;
}
int GraphNode::get_connection_input_type(int p_idx) {
if (connpos_dirty) {
_connpos_update();
}
ERR_FAIL_INDEX_V(p_idx, conn_input_cache.size(), 0);
return conn_input_cache[p_idx].type;
}
Color GraphNode::get_connection_input_color(int p_idx) {
if (connpos_dirty) {
_connpos_update();
}
ERR_FAIL_INDEX_V(p_idx, conn_input_cache.size(), Color());
return conn_input_cache[p_idx].color;
}
Vector2 GraphNode::get_connection_output_position(int p_idx) {
if (connpos_dirty) {
_connpos_update();
}
ERR_FAIL_INDEX_V(p_idx, conn_output_cache.size(), Vector2());
Vector2 pos = conn_output_cache[p_idx].pos;
pos.x *= get_scale().x;
pos.y *= get_scale().y;
return pos;
}
int GraphNode::get_connection_output_type(int p_idx) {
if (connpos_dirty) {
_connpos_update();
}
ERR_FAIL_INDEX_V(p_idx, conn_output_cache.size(), 0);
return conn_output_cache[p_idx].type;
}
Color GraphNode::get_connection_output_color(int p_idx) {
if (connpos_dirty) {
_connpos_update();
}
ERR_FAIL_INDEX_V(p_idx, conn_output_cache.size(), Color());
return conn_output_cache[p_idx].color;
}
void GraphNode::_gui_input(const Ref<InputEvent> &p_ev) {
Ref<InputEventMouseButton> mb = p_ev;
if (mb.is_valid()) {
ERR_FAIL_COND_MSG(get_parent_control() == nullptr, "GraphNode must be the child of a GraphEdit node.");
if (mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
Vector2 mpos = Vector2(mb->get_position().x, mb->get_position().y);
if (close_rect.size != Size2() && close_rect.has_point(mpos)) {
//send focus to parent
get_parent_control()->grab_focus();
emit_signal("close_request");
accept_event();
return;
}
Ref<Texture2D> resizer = get_theme_icon("resizer");
if (resizable && mpos.x > get_size().x - resizer->get_width() && mpos.y > get_size().y - resizer->get_height()) {
resizing = true;
resizing_from = mpos;
resizing_from_size = get_size();
accept_event();
return;
}
emit_signal("raise_request");
}
if (!mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
resizing = false;
}
}
Ref<InputEventMouseMotion> mm = p_ev;
if (resizing && mm.is_valid()) {
Vector2 mpos = mm->get_position();
Vector2 diff = mpos - resizing_from;
emit_signal("resize_request", resizing_from_size + diff);
}
}
void GraphNode::set_overlay(Overlay p_overlay) {
overlay = p_overlay;
update();
}
GraphNode::Overlay GraphNode::get_overlay() const {
return overlay;
}
void GraphNode::set_comment(bool p_enable) {
comment = p_enable;
update();
}
bool GraphNode::is_comment() const {
return comment;
}
void GraphNode::set_resizable(bool p_enable) {
resizable = p_enable;
update();
}
bool GraphNode::is_resizable() const {
return resizable;
}
void GraphNode::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_title", "title"), &GraphNode::set_title);
ClassDB::bind_method(D_METHOD("get_title"), &GraphNode::get_title);
ClassDB::bind_method(D_METHOD("_gui_input"), &GraphNode::_gui_input);
ClassDB::bind_method(D_METHOD("set_slot", "idx", "enable_left", "type_left", "color_left", "enable_right", "type_right", "color_right", "custom_left", "custom_right"), &GraphNode::set_slot, DEFVAL(Ref<Texture2D>()), DEFVAL(Ref<Texture2D>()));
ClassDB::bind_method(D_METHOD("clear_slot", "idx"), &GraphNode::clear_slot);
ClassDB::bind_method(D_METHOD("clear_all_slots"), &GraphNode::clear_all_slots);
ClassDB::bind_method(D_METHOD("is_slot_enabled_left", "idx"), &GraphNode::is_slot_enabled_left);
ClassDB::bind_method(D_METHOD("get_slot_type_left", "idx"), &GraphNode::get_slot_type_left);
ClassDB::bind_method(D_METHOD("get_slot_color_left", "idx"), &GraphNode::get_slot_color_left);
ClassDB::bind_method(D_METHOD("is_slot_enabled_right", "idx"), &GraphNode::is_slot_enabled_right);
ClassDB::bind_method(D_METHOD("get_slot_type_right", "idx"), &GraphNode::get_slot_type_right);
ClassDB::bind_method(D_METHOD("get_slot_color_right", "idx"), &GraphNode::get_slot_color_right);
ClassDB::bind_method(D_METHOD("set_offset", "offset"), &GraphNode::set_offset);
ClassDB::bind_method(D_METHOD("get_offset"), &GraphNode::get_offset);
ClassDB::bind_method(D_METHOD("set_comment", "comment"), &GraphNode::set_comment);
ClassDB::bind_method(D_METHOD("is_comment"), &GraphNode::is_comment);
ClassDB::bind_method(D_METHOD("set_resizable", "resizable"), &GraphNode::set_resizable);
ClassDB::bind_method(D_METHOD("is_resizable"), &GraphNode::is_resizable);
ClassDB::bind_method(D_METHOD("set_selected", "selected"), &GraphNode::set_selected);
ClassDB::bind_method(D_METHOD("is_selected"), &GraphNode::is_selected);
ClassDB::bind_method(D_METHOD("get_connection_output_count"), &GraphNode::get_connection_output_count);
ClassDB::bind_method(D_METHOD("get_connection_input_count"), &GraphNode::get_connection_input_count);
ClassDB::bind_method(D_METHOD("get_connection_output_position", "idx"), &GraphNode::get_connection_output_position);
ClassDB::bind_method(D_METHOD("get_connection_output_type", "idx"), &GraphNode::get_connection_output_type);
ClassDB::bind_method(D_METHOD("get_connection_output_color", "idx"), &GraphNode::get_connection_output_color);
ClassDB::bind_method(D_METHOD("get_connection_input_position", "idx"), &GraphNode::get_connection_input_position);
ClassDB::bind_method(D_METHOD("get_connection_input_type", "idx"), &GraphNode::get_connection_input_type);
ClassDB::bind_method(D_METHOD("get_connection_input_color", "idx"), &GraphNode::get_connection_input_color);
ClassDB::bind_method(D_METHOD("set_show_close_button", "show"), &GraphNode::set_show_close_button);
ClassDB::bind_method(D_METHOD("is_close_button_visible"), &GraphNode::is_close_button_visible);
ClassDB::bind_method(D_METHOD("set_overlay", "overlay"), &GraphNode::set_overlay);
ClassDB::bind_method(D_METHOD("get_overlay"), &GraphNode::get_overlay);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "title"), "set_title", "get_title");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset"), "set_offset", "get_offset");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "show_close"), "set_show_close_button", "is_close_button_visible");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "resizable"), "set_resizable", "is_resizable");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "selected"), "set_selected", "is_selected");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "comment"), "set_comment", "is_comment");
ADD_PROPERTY(PropertyInfo(Variant::INT, "overlay", PROPERTY_HINT_ENUM, "Disabled,Breakpoint,Position"), "set_overlay", "get_overlay");
ADD_SIGNAL(MethodInfo("offset_changed"));
ADD_SIGNAL(MethodInfo("dragged", PropertyInfo(Variant::VECTOR2, "from"), PropertyInfo(Variant::VECTOR2, "to")));
ADD_SIGNAL(MethodInfo("raise_request"));
ADD_SIGNAL(MethodInfo("close_request"));
ADD_SIGNAL(MethodInfo("resize_request", PropertyInfo(Variant::VECTOR2, "new_minsize")));
BIND_ENUM_CONSTANT(OVERLAY_DISABLED);
BIND_ENUM_CONSTANT(OVERLAY_BREAKPOINT);
BIND_ENUM_CONSTANT(OVERLAY_POSITION);
}
GraphNode::GraphNode() {
overlay = OVERLAY_DISABLED;
show_close = false;
connpos_dirty = true;
set_mouse_filter(MOUSE_FILTER_STOP);
comment = false;
resizable = false;
resizing = false;
selected = false;
}