godot/scene/gui/graph_node.cpp

629 lines
16 KiB
C++

/*************************************************************************/
/* graph_node.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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);
}