godot/scene/gui/graph_node.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader!
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

628 lines
16 KiB
C++

/*************************************************************************/
/* graph_node.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "graph_node.h"
#include "method_bind_ext.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=get_child(i)->cast_to<Control>();
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_constant("separation");
Ref<StyleBox> sb=get_stylebox("frame");
bool first=true;
Size2 minsize;
for(int i=0;i<get_child_count();i++) {
Control *c=get_child(i)->cast_to<Control>();
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=get_child(i)->cast_to<Control>();
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);
if (vofs>0)
vofs+=sep;
vofs+=size.y;
}
_change_notify();
update();
connpos_dirty=true;
}
void GraphNode::_notification(int p_what) {
if (p_what==NOTIFICATION_DRAW) {
Ref<StyleBox> sb=get_stylebox(selected ? "selectedframe" : "frame");
Ref<Texture> port =get_icon("port");
Ref<Texture> close =get_icon("close");
int close_offset = get_constant("close_offset");
Ref<Font> title_font = get_font("title_font");
int title_offset = get_constant("title_offset");
Color title_color = get_color("title_color");
Point2i icofs = -port->get_size()*0.5;
int edgeofs=get_constant("port_offset");
icofs.y+=sb->get_margin(MARGIN_TOP);
draw_style_box(sb,Rect2(Point2(),get_size()));
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_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->get_height()+close_offset);
draw_texture(close,cpos);
close_rect.pos=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)
port->draw(get_canvas_item(),icofs+Point2(edgeofs,cache_y[E->key()]),s.color_left);
if (s.enable_right)
port->draw(get_canvas_item(),icofs+Point2(get_size().x-edgeofs,cache_y[E->key()]),s.color_right);
}
}
if (p_what==NOTIFICATION_SORT_CHILDREN) {
_resort();
}
}
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) {
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;
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_font("title_font");
int sep=get_constant("separation");
Ref<StyleBox> sb=get_stylebox("frame");
bool first=true;
Size2 minsize;
minsize.x=title_font->get_string_size(title).x;
if (show_close) {
Ref<Texture> close =get_icon("close");
minsize.x+=sep+close->get_width();
}
for(int i=0;i<get_child_count();i++) {
Control *c=get_child(i)->cast_to<Control>();
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) {
title=p_title;
minimum_size_changed();
update();
}
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_constant("port_offset");
int sep=get_constant("separation");
Ref<StyleBox> sb=get_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=get_child(i)->cast_to<Control>();
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_pos(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_pos(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::_input_event(const InputEvent& p_ev) {
if (p_ev.type==InputEvent::MOUSE_BUTTON) {
ERR_EXPLAIN("GraphNode must be the child of a GraphEdit node.");
ERR_FAIL_COND(get_parent_control() == NULL);
get_parent_control()->grab_focus();
if(p_ev.mouse_button.pressed && p_ev.mouse_button.button_index==BUTTON_LEFT) {
Vector2 mpos = Vector2(p_ev.mouse_button.x,p_ev.mouse_button.y);
if (close_rect.size!=Size2() && close_rect.has_point(mpos)) {
emit_signal("close_request");
return;
}
emit_signal("raise_request");
}
}
}
void GraphNode::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_title","title"),&GraphNode::set_title);
ObjectTypeDB::bind_method(_MD("get_title"),&GraphNode::get_title);
ObjectTypeDB::bind_method(_MD("_input_event"),&GraphNode::_input_event);
ObjectTypeDB::bind_method(_MD("set_slot","idx","enable_left","type_left","color_left","enable_right","type_right","color_right"),&GraphNode::set_slot);
ObjectTypeDB::bind_method(_MD("clear_slot","idx"),&GraphNode::clear_slot);
ObjectTypeDB::bind_method(_MD("clear_all_slots","idx"),&GraphNode::clear_all_slots);
ObjectTypeDB::bind_method(_MD("is_slot_enabled_left","idx"),&GraphNode::is_slot_enabled_left);
ObjectTypeDB::bind_method(_MD("get_slot_type_left","idx"),&GraphNode::get_slot_type_left);
ObjectTypeDB::bind_method(_MD("get_slot_color_left","idx"),&GraphNode::get_slot_color_left);
ObjectTypeDB::bind_method(_MD("is_slot_enabled_right","idx"),&GraphNode::is_slot_enabled_right);
ObjectTypeDB::bind_method(_MD("get_slot_type_right","idx"),&GraphNode::get_slot_type_right);
ObjectTypeDB::bind_method(_MD("get_slot_color_right","idx"),&GraphNode::get_slot_color_right);
ObjectTypeDB::bind_method(_MD("set_offset","offset"),&GraphNode::set_offset);
ObjectTypeDB::bind_method(_MD("get_offset"),&GraphNode::get_offset);
ObjectTypeDB::bind_method(_MD("get_connection_output_count"),&GraphNode::get_connection_output_count);
ObjectTypeDB::bind_method(_MD("get_connection_input_count"),&GraphNode::get_connection_input_count);
ObjectTypeDB::bind_method(_MD("get_connection_output_pos","idx"),&GraphNode::get_connection_output_pos);
ObjectTypeDB::bind_method(_MD("get_connection_output_type","idx"),&GraphNode::get_connection_output_type);
ObjectTypeDB::bind_method(_MD("get_connection_output_color","idx"),&GraphNode::get_connection_output_color);
ObjectTypeDB::bind_method(_MD("get_connection_input_pos","idx"),&GraphNode::get_connection_input_pos);
ObjectTypeDB::bind_method(_MD("get_connection_input_type","idx"),&GraphNode::get_connection_input_type);
ObjectTypeDB::bind_method(_MD("get_connection_input_color","idx"),&GraphNode::get_connection_input_color);
ObjectTypeDB::bind_method(_MD("set_show_close_button","show"),&GraphNode::set_show_close_button);
ObjectTypeDB::bind_method(_MD("is_close_button_visible"),&GraphNode::is_close_button_visible);
ADD_PROPERTY( PropertyInfo(Variant::STRING,"title"),_SCS("set_title"),_SCS("get_title"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"show_close"),_SCS("set_show_close_button"),_SCS("is_close_button_visible"));
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"));
}
GraphNode::GraphNode() {
show_close=false;
connpos_dirty=true;
set_stop_mouse(false);
}