/*************************************************************************/ /* graph_edit.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_edit.h" #include "os/input.h" #include "os/keyboard.h" #include "scene/gui/box_container.h" #define ZOOM_SCALE 1.2 #define MIN_ZOOM (((1/ZOOM_SCALE)/ZOOM_SCALE)/ZOOM_SCALE) #define MAX_ZOOM (1*ZOOM_SCALE*ZOOM_SCALE*ZOOM_SCALE) bool GraphEditFilter::has_point(const Point2& p_point) const { return ge->_filter_input(p_point); } GraphEditFilter::GraphEditFilter(GraphEdit *p_edit) { ge=p_edit; } Error GraphEdit::connect_node(const StringName& p_from, int p_from_port,const StringName& p_to,int p_to_port) { if (is_node_connected(p_from,p_from_port,p_to,p_to_port)) return OK; Connection c; c.from=p_from; c.from_port=p_from_port; c.to=p_to; c.to_port=p_to_port; connections.push_back(c); top_layer->update(); update(); connections_layer->update(); return OK; } bool GraphEdit::is_node_connected(const StringName& p_from, int p_from_port,const StringName& p_to,int p_to_port) { for(List::Element *E=connections.front();E;E=E->next()) { if (E->get().from==p_from && E->get().from_port==p_from_port && E->get().to==p_to && E->get().to_port==p_to_port) return true; } return false; } void GraphEdit::disconnect_node(const StringName& p_from, int p_from_port,const StringName& p_to,int p_to_port){ for(List::Element *E=connections.front();E;E=E->next()) { if (E->get().from==p_from && E->get().from_port==p_from_port && E->get().to==p_to && E->get().to_port==p_to_port) { connections.erase(E); top_layer->update(); update(); connections_layer->update(); return; } } } bool GraphEdit::clips_input() const { return true; } void GraphEdit::get_connection_list(List *r_connections) const { *r_connections=connections; } void GraphEdit::set_scroll_ofs(const Vector2& p_ofs) { setting_scroll_ofs=true; h_scroll->set_val(p_ofs.x); v_scroll->set_val(p_ofs.y); _update_scroll(); setting_scroll_ofs=false; } Vector2 GraphEdit::get_scroll_ofs() const{ return Vector2(h_scroll->get_val(),v_scroll->get_val()); } void GraphEdit::_scroll_moved(double) { if (!awaiting_scroll_offset_update) { call_deferred("_update_scroll_offset"); awaiting_scroll_offset_update=true; } top_layer->update(); update(); if (!setting_scroll_ofs) {//in godot, signals on change value are avoided as a convention emit_signal("scroll_offset_changed",get_scroll_ofs()); } } void GraphEdit::_update_scroll_offset() { set_block_minimum_size_adjust(true); for(int i=0;icast_to(); if (!gn) continue; Point2 pos=gn->get_offset()*zoom; pos-=Point2(h_scroll->get_val(),v_scroll->get_val()); gn->set_pos(pos); if (gn->get_scale()!=Vector2(zoom,zoom)) { gn->set_scale(Vector2(zoom,zoom)); } } connections_layer->set_pos(-Point2(h_scroll->get_val(),v_scroll->get_val())*zoom); set_block_minimum_size_adjust(false); awaiting_scroll_offset_update=false; } void GraphEdit::_update_scroll() { if (updating) return; updating=true; set_block_minimum_size_adjust(true); Rect2 screen; for(int i=0;icast_to(); if (!gn) continue; Rect2 r; r.pos=gn->get_offset()*zoom; r.size=gn->get_size()*zoom; screen = screen.merge(r); } screen.pos-=get_size(); screen.size+=get_size()*2.0; h_scroll->set_min(screen.pos.x); h_scroll->set_max(screen.pos.x+screen.size.x); h_scroll->set_page(get_size().x); if (h_scroll->get_max() - h_scroll->get_min() <= h_scroll->get_page()) h_scroll->hide(); else h_scroll->show(); v_scroll->set_min(screen.pos.y); v_scroll->set_max(screen.pos.y+screen.size.y); v_scroll->set_page(get_size().y); if (v_scroll->get_max() - v_scroll->get_min() <= v_scroll->get_page()) v_scroll->hide(); else v_scroll->show(); set_block_minimum_size_adjust(false); if (!awaiting_scroll_offset_update) { call_deferred("_update_scroll_offset"); awaiting_scroll_offset_update=true; } updating=false; } void GraphEdit::_graph_node_raised(Node* p_gn) { GraphNode *gn=p_gn->cast_to(); ERR_FAIL_COND(!gn); gn->raise(); if (gn->is_comment()) { move_child(gn,0); } int first_not_comment=0; for(int i=0;icast_to(); if (gn && !gn->is_comment()) { first_not_comment=i; break; } } move_child(connections_layer,first_not_comment); top_layer->raise(); emit_signal("node_selected",p_gn); } void GraphEdit::_graph_node_moved(Node *p_gn) { GraphNode *gn=p_gn->cast_to(); ERR_FAIL_COND(!gn); top_layer->update(); update(); connections_layer->update(); } void GraphEdit::add_child_notify(Node *p_child) { Control::add_child_notify(p_child); top_layer->call_deferred("raise"); //top layer always on top! GraphNode *gn = p_child->cast_to(); if (gn) { gn->set_scale(Vector2(zoom,zoom)); gn->connect("offset_changed",this,"_graph_node_moved",varray(gn)); gn->connect("raise_request",this,"_graph_node_raised",varray(gn)); _graph_node_moved(gn); gn->set_stop_mouse(false); } } void GraphEdit::remove_child_notify(Node *p_child) { Control::remove_child_notify(p_child); top_layer->call_deferred("raise"); //top layer always on top! GraphNode *gn = p_child->cast_to(); if (gn) { gn->disconnect("offset_changed",this,"_graph_node_moved"); gn->disconnect("raise_request",this,"_graph_node_raised"); } } void GraphEdit::_notification(int p_what) { if (p_what==NOTIFICATION_READY) { Size2 hmin = h_scroll->get_combined_minimum_size(); Size2 vmin = v_scroll->get_combined_minimum_size(); v_scroll->set_anchor_and_margin(MARGIN_LEFT,ANCHOR_END,vmin.width); v_scroll->set_anchor_and_margin(MARGIN_RIGHT,ANCHOR_END,0); v_scroll->set_anchor_and_margin(MARGIN_TOP,ANCHOR_BEGIN,0); v_scroll->set_anchor_and_margin(MARGIN_BOTTOM,ANCHOR_END,0); h_scroll->set_anchor_and_margin(MARGIN_LEFT,ANCHOR_BEGIN,0); h_scroll->set_anchor_and_margin(MARGIN_RIGHT,ANCHOR_END,0); h_scroll->set_anchor_and_margin(MARGIN_TOP,ANCHOR_END,hmin.height); h_scroll->set_anchor_and_margin(MARGIN_BOTTOM,ANCHOR_END,0); zoom_minus->set_icon(get_icon("minus")); zoom_reset->set_icon(get_icon("reset")); zoom_plus->set_icon(get_icon("more")); snap_button->set_icon(get_icon("snap")); // zoom_icon->set_texture( get_icon("Zoom", "EditorIcons")); } if (p_what==NOTIFICATION_DRAW) { draw_style_box( get_stylebox("bg"),Rect2(Point2(),get_size()) ); VS::get_singleton()->canvas_item_set_clip(get_canvas_item(),true); if (is_using_snap()) { //draw grid int snap = get_snap(); Vector2 offset = get_scroll_ofs()/zoom; Size2 size = get_size()/zoom; Point2i from = (offset/float(snap)).floor(); Point2i len = (size/float(snap)).floor()+Vector2(1,1); Color grid_minor = get_color("grid_minor"); Color grid_major = get_color("grid_major"); for(int i=from.x;iupdate(); } } bool GraphEdit::_filter_input(const Point2& p_point) { Ref port =get_icon("port","GraphNode"); float grab_r=port->get_width()*0.5; for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; for(int j=0;jget_connection_output_count();j++) { Vector2 pos = gn->get_connection_output_pos(j)+gn->get_pos(); if (pos.distance_to(p_point)get_connection_input_count();j++) { Vector2 pos = gn->get_connection_input_pos(j)+gn->get_pos(); if (pos.distance_to(p_point) port =get_icon("port","GraphNode"); Vector2 mpos(p_ev.mouse_button.x,p_ev.mouse_button.y); float grab_r=port->get_width()*0.5; for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; for(int j=0;jget_connection_output_count();j++) { Vector2 pos = gn->get_connection_output_pos(j)+gn->get_pos(); if (pos.distance_to(mpos)get_connection_output_type(j))) { //check disconnect for (List::Element*E=connections.front();E;E=E->next()) { if (E->get().from==gn->get_name() && E->get().from_port==j) { Node*to = get_node(String(E->get().to)); if (to && to->cast_to()) { connecting_from=E->get().to; connecting_index=E->get().to_port; connecting_out=false; connecting_type=to->cast_to()->get_connection_input_type(E->get().to_port); connecting_color=to->cast_to()->get_connection_input_color(E->get().to_port); connecting_target=false; connecting_to=pos; emit_signal("disconnection_request",E->get().from,E->get().from_port,E->get().to,E->get().to_port); to = get_node(String(connecting_from)); //maybe it was erased if (to && to->cast_to()) { connecting=true; } return; } } } } connecting=true; connecting_from=gn->get_name(); connecting_index=j; connecting_out=true; connecting_type=gn->get_connection_output_type(j); connecting_color=gn->get_connection_output_color(j); connecting_target=false; connecting_to=pos; return; } } for(int j=0;jget_connection_input_count();j++) { Vector2 pos = gn->get_connection_input_pos(j)+gn->get_pos(); if (pos.distance_to(mpos)get_connection_input_type(j))) { //check disconnect for (List::Element*E=connections.front();E;E=E->next()) { if (E->get().to==gn->get_name() && E->get().to_port==j) { Node*fr = get_node(String(E->get().from)); if (fr && fr->cast_to()) { connecting_from=E->get().from; connecting_index=E->get().from_port; connecting_out=true; connecting_type=fr->cast_to()->get_connection_output_type(E->get().from_port); connecting_color=fr->cast_to()->get_connection_output_color(E->get().from_port); connecting_target=false; connecting_to=pos; emit_signal("disconnection_request",E->get().from,E->get().from_port,E->get().to,E->get().to_port); fr = get_node(String(connecting_from)); //maybe it was erased if (fr && fr->cast_to()) { connecting=true; } return; } } } } connecting=true; connecting_from=gn->get_name(); connecting_index=j; connecting_out=false; connecting_type=gn->get_connection_input_type(j); connecting_color=gn->get_connection_input_color(j); connecting_target=false; connecting_to=pos; return; } } } } if (p_ev.type==InputEvent::MOUSE_MOTION && connecting) { connecting_to=Vector2(p_ev.mouse_motion.x,p_ev.mouse_motion.y); connecting_target=false; top_layer->update(); Ref port =get_icon("port","GraphNode"); Vector2 mpos(p_ev.mouse_button.x,p_ev.mouse_button.y); float grab_r=port->get_width()*0.5; for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; if (!connecting_out) { for(int j=0;jget_connection_output_count();j++) { Vector2 pos = gn->get_connection_output_pos(j)+gn->get_pos(); int type =gn->get_connection_output_type(j); if ((type==connecting_type ||valid_connection_types.has(ConnType(type,connecting_type))) && pos.distance_to(mpos)get_name(); connecting_target_index=j; return; } } } else { for(int j=0;jget_connection_input_count();j++) { Vector2 pos = gn->get_connection_input_pos(j)+gn->get_pos(); int type =gn->get_connection_input_type(j); if ((type==connecting_type ||valid_connection_types.has(ConnType(type,connecting_type))) && pos.distance_to(mpos)get_name(); connecting_target_index=j; return; } } } } } if (p_ev.type==InputEvent::MOUSE_BUTTON && p_ev.mouse_button.button_index==BUTTON_LEFT && !p_ev.mouse_button.pressed) { if (connecting && connecting_target) { String from = connecting_from; int from_slot = connecting_index; String to =connecting_target_to; int to_slot = connecting_target_index; if (!connecting_out) { SWAP(from,to); SWAP(from_slot,to_slot); } emit_signal("connection_request",from,from_slot,to,to_slot); } else { String from = connecting_from; int from_slot = connecting_index; Vector2 ofs = Vector2(p_ev.mouse_button.x,p_ev.mouse_button.y); emit_signal("connection_to_empty",from,from_slot,ofs); } connecting=false; top_layer->update(); update(); connections_layer->update(); } } template static _FORCE_INLINE_ Vector2 _bezier_interp(real_t t, Vector2 start, Vector2 control_1, Vector2 control_2, Vector2 end) { /* Formula from Wikipedia article on Bezier curves. */ real_t omt = (1.0 - t); real_t omt2 = omt*omt; real_t omt3 = omt2*omt; real_t t2 = t*t; real_t t3 = t2*t; return start * omt3 + control_1 * omt2 * t * 3.0 + control_2 * omt * t2 * 3.0 + end * t3; } void GraphEdit::_bake_segment2d(CanvasItem* p_where,float p_begin, float p_end,const Vector2& p_a,const Vector2& p_out,const Vector2& p_b, const Vector2& p_in,int p_depth,int p_min_depth,int p_max_depth,float p_tol,const Color& p_color,const Color& p_to_color,int &lines) const { float mp = p_begin+(p_end-p_begin)*0.5; Vector2 beg = _bezier_interp(p_begin,p_a,p_a+p_out,p_b+p_in,p_b); Vector2 mid = _bezier_interp(mp,p_a,p_a+p_out,p_b+p_in,p_b); Vector2 end = _bezier_interp(p_end,p_a,p_a+p_out,p_b+p_in,p_b); Vector2 na = (mid-beg).normalized(); Vector2 nb = (end-mid).normalized(); float dp = Math::rad2deg(Math::acos(na.dot(nb))); if (p_depth>=p_min_depth && ( dp=p_max_depth)) { p_where->draw_line(beg,end,p_color.linear_interpolate(p_to_color,mp),2,true); lines++; } else { _bake_segment2d(p_where,p_begin,mp,p_a,p_out,p_b,p_in,p_depth+1,p_min_depth,p_max_depth,p_tol,p_color,p_to_color,lines); _bake_segment2d(p_where,mp,p_end,p_a,p_out,p_b,p_in,p_depth+1,p_min_depth,p_max_depth,p_tol,p_color,p_to_color,lines); } } void GraphEdit::_draw_cos_line(CanvasItem* p_where,const Vector2& p_from, const Vector2& p_to,const Color& p_color,const Color& p_to_color) { #if 1 //cubic bezier code float diff = p_to.x-p_from.x; float cp_offset; int cp_len = get_constant("bezier_len_pos"); int cp_neg_len = get_constant("bezier_len_neg"); if (diff>0) { cp_offset=MAX(cp_len,diff*0.5); } else { cp_offset=MAX(MIN(cp_len-diff,cp_neg_len),-diff*0.5); } Vector2 c1 = Vector2(cp_offset,0); Vector2 c2 = Vector2(-cp_offset,0); int lines=0; _bake_segment2d(p_where,0,1,p_from,c1,p_to,c2,0,3,9,8,p_color,p_to_color,lines); #else static const int steps = 20; //old cosine code Rect2 r; r.pos=p_from; r.expand_to(p_to); Vector2 sign=Vector2((p_from.x < p_to.x) ? 1 : -1,(p_from.y < p_to.y) ? 1 : -1); bool flip = sign.x * sign.y < 0; Vector2 prev; for(int i=0;i<=steps;i++) { float d = i/float(steps); float c=-Math::cos(d*Math_PI) * 0.5+0.5; if (flip) c=1.0-c; Vector2 p = r.pos+Vector2(d*r.size.width,c*r.size.height); if (i>0) { p_where->draw_line(prev,p,p_color.linear_interpolate(p_to_color,d),2); } prev=p; } #endif } void GraphEdit::_connections_layer_draw() { { //draw connections List::Element* > to_erase; for(List::Element *E=connections.front();E;E=E->next()) { NodePath fromnp(E->get().from); Node * from = get_node(fromnp); if (!from) { to_erase.push_back(E); continue; } GraphNode *gfrom = from->cast_to(); if (!gfrom) { to_erase.push_back(E); continue; } NodePath tonp(E->get().to); Node * to = get_node(tonp); if (!to) { to_erase.push_back(E); continue; } GraphNode *gto = to->cast_to(); if (!gto) { to_erase.push_back(E); continue; } Vector2 frompos=gfrom->get_connection_output_pos(E->get().from_port)+gfrom->get_offset(); Color color = gfrom->get_connection_output_color(E->get().from_port); Vector2 topos=gto->get_connection_input_pos(E->get().to_port)+gto->get_offset(); Color tocolor = gto->get_connection_input_color(E->get().to_port); _draw_cos_line(connections_layer,frompos,topos,color,tocolor); } while(to_erase.size()) { connections.erase(to_erase.front()->get()); to_erase.pop_front(); } } } void GraphEdit::_top_layer_draw() { _update_scroll(); if (connecting) { Node *fromn = get_node(connecting_from); ERR_FAIL_COND(!fromn); GraphNode *from = fromn->cast_to(); ERR_FAIL_COND(!from); Vector2 pos; if (connecting_out) pos=from->get_connection_output_pos(connecting_index); else pos=from->get_connection_input_pos(connecting_index); pos+=from->get_pos(); Vector2 topos; topos=connecting_to; Color col=connecting_color; if (connecting_target) { col.r+=0.4; col.g+=0.4; col.b+=0.4; } if (!connecting_out) { SWAP(pos,topos); } _draw_cos_line(top_layer,pos,topos,col,col); } if (box_selecting) top_layer->draw_rect(box_selecting_rect,Color(0.7,0.7,1.0,0.3)); } void GraphEdit::set_selected(Node* p_child) { for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; gn->set_selected(gn==p_child); } } void GraphEdit::_input_event(const InputEvent& p_ev) { if (p_ev.type==InputEvent::MOUSE_MOTION && (p_ev.mouse_motion.button_mask&BUTTON_MASK_MIDDLE || (p_ev.mouse_motion.button_mask&BUTTON_MASK_LEFT && Input::get_singleton()->is_key_pressed(KEY_SPACE)))) { h_scroll->set_val( h_scroll->get_val() - p_ev.mouse_motion.relative_x ); v_scroll->set_val( v_scroll->get_val() - p_ev.mouse_motion.relative_y ); } if (p_ev.type==InputEvent::MOUSE_MOTION && dragging) { just_selected=true; // TODO: Remove local mouse pos hack if/when InputEventMouseMotion is fixed to support floats //drag_accum+=Vector2(p_ev.mouse_motion.relative_x,p_ev.mouse_motion.relative_y); drag_accum = get_local_mouse_pos() - drag_origin; for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (gn && gn->is_selected()) { Vector2 pos = (gn->get_drag_from()*zoom+drag_accum)/zoom; if (is_using_snap()) { int snap = get_snap(); pos = pos.snapped(Vector2(snap,snap)); } gn->set_offset(pos); } } } if (p_ev.type==InputEvent::MOUSE_MOTION && box_selecting) { box_selecting_to = get_local_mouse_pos(); box_selecting_rect = Rect2(MIN(box_selecting_from.x,box_selecting_to.x), MIN(box_selecting_from.y,box_selecting_to.y), ABS(box_selecting_from.x-box_selecting_to.x), ABS(box_selecting_from.y-box_selecting_to.y)); for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; Rect2 r = gn->get_rect(); r.size*=zoom; bool in_box = r.intersects(box_selecting_rect); if (in_box) gn->set_selected(box_selection_mode_aditive); else gn->set_selected(previus_selected.find(gn)!=NULL); } top_layer->update(); } if (p_ev.type==InputEvent::MOUSE_BUTTON) { const InputEventMouseButton &b=p_ev.mouse_button; if (b.button_index==BUTTON_RIGHT && b.pressed) { if (box_selecting) { box_selecting = false; for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; gn->set_selected(previus_selected.find(gn)!=NULL); } top_layer->update(); } else { if (connecting) { connecting = false; top_layer->update(); } else { emit_signal("popup_request", Vector2(b.global_x, b.global_y)); } } } if (b.button_index==BUTTON_LEFT && !b.pressed && dragging) { if (!just_selected && drag_accum==Vector2() && Input::get_singleton()->is_key_pressed(KEY_CONTROL)) { //deselect current node for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (gn) { Rect2 r = gn->get_rect(); r.size*=zoom; if (r.has_point(get_local_mouse_pos())) gn->set_selected(false); } } } if (drag_accum!=Vector2()) { emit_signal("_begin_node_move"); for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (gn && gn->is_selected()) gn->set_drag(false); } emit_signal("_end_node_move"); } dragging = false; top_layer->update(); update(); connections_layer->update(); } if (b.button_index==BUTTON_LEFT && b.pressed) { GraphNode *gn = NULL; for(int i=get_child_count()-1;i>=0;i--) { gn=get_child(i)->cast_to(); if (gn) { if (gn->is_resizing()) continue; Rect2 r = gn->get_rect(); r.size*=zoom; if (r.has_point(get_local_mouse_pos())) break; } } if (gn) { if (_filter_input(Vector2(b.x,b.y))) return; dragging = true; drag_accum = Vector2(); drag_origin = get_local_mouse_pos(); just_selected = !gn->is_selected(); if(!gn->is_selected() && !Input::get_singleton()->is_key_pressed(KEY_CONTROL)) { for (int i = 0; i < get_child_count(); i++) { GraphNode *o_gn = get_child(i)->cast_to(); if (o_gn) o_gn->set_selected(o_gn == gn); } } gn->set_selected(true); for (int i = 0; i < get_child_count(); i++) { GraphNode *o_gn = get_child(i)->cast_to(); if (!o_gn) continue; if (o_gn->is_selected()) o_gn->set_drag(true); } } else { if (_filter_input(Vector2(b.x,b.y))) return; if (Input::get_singleton()->is_key_pressed(KEY_SPACE)) return; box_selecting = true; box_selecting_from = get_local_mouse_pos(); if (b.mod.control) { box_selection_mode_aditive = true; previus_selected.clear(); for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn || !gn->is_selected()) continue; previus_selected.push_back(gn); } } else if (b.mod.shift) { box_selection_mode_aditive = false; previus_selected.clear(); for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn || !gn->is_selected()) continue; previus_selected.push_back(gn); } } else { box_selection_mode_aditive = true; previus_selected.clear(); for(int i=get_child_count()-1;i>=0;i--) { GraphNode *gn=get_child(i)->cast_to(); if (!gn) continue; gn->set_selected(false); } } } } if (b.button_index==BUTTON_LEFT && !b.pressed && box_selecting) { box_selecting = false; previus_selected.clear(); top_layer->update(); } if (b.button_index==BUTTON_WHEEL_UP && b.pressed) { //too difficult to get right //set_zoom(zoom*ZOOM_SCALE); } if (b.button_index==BUTTON_WHEEL_DOWN && b.pressed) { //too difficult to get right //set_zoom(zoom/ZOOM_SCALE); } } if (p_ev.type==InputEvent::KEY && p_ev.key.scancode==KEY_D && p_ev.key.pressed && p_ev.key.mod.command) { emit_signal("duplicate_nodes_request"); accept_event(); } if (p_ev.type==InputEvent::KEY && p_ev.key.scancode==KEY_DELETE && p_ev.key.pressed) { emit_signal("delete_nodes_request"); accept_event(); } } void GraphEdit::clear_connections() { connections.clear(); update(); connections_layer->update(); } void GraphEdit::set_zoom(float p_zoom) { p_zoom=CLAMP(p_zoom,MIN_ZOOM,MAX_ZOOM); if (zoom == p_zoom) return; zoom_minus->set_disabled(zoom==MIN_ZOOM); zoom_plus->set_disabled(zoom==MAX_ZOOM); Vector2 sbofs = (Vector2( h_scroll->get_val(), v_scroll->get_val() ) + get_size()/2)/zoom; zoom = p_zoom; top_layer->update(); _update_scroll(); if (is_visible()) { Vector2 ofs = sbofs*zoom - get_size()/2; h_scroll->set_val( ofs.x ); v_scroll->set_val( ofs.y ); } update(); } float GraphEdit::get_zoom() const { return zoom; } void GraphEdit::set_right_disconnects(bool p_enable) { right_disconnects=p_enable; } bool GraphEdit::is_right_disconnects_enabled() const{ return right_disconnects; } void GraphEdit::add_valid_right_disconnect_type(int p_type) { valid_right_disconnect_types.insert(p_type); } void GraphEdit::remove_valid_right_disconnect_type(int p_type){ valid_right_disconnect_types.erase(p_type); } void GraphEdit::add_valid_left_disconnect_type(int p_type){ valid_left_disconnect_types.insert(p_type); } void GraphEdit::remove_valid_left_disconnect_type(int p_type){ valid_left_disconnect_types.erase(p_type); } Array GraphEdit::_get_connection_list() const { List conns; get_connection_list(&conns); Array arr; for(List::Element *E=conns.front();E;E=E->next()) { Dictionary d; d["from"]=E->get().from; d["from_port"]=E->get().from_port; d["to"]=E->get().to; d["to_port"]=E->get().to_port; arr.push_back(d); } return arr; } void GraphEdit::_zoom_minus() { set_zoom(zoom/ZOOM_SCALE); } void GraphEdit::_zoom_reset() { set_zoom(1); } void GraphEdit::_zoom_plus() { set_zoom(zoom*ZOOM_SCALE); } void GraphEdit::add_valid_connection_type(int p_type,int p_with_type) { ConnType ct; ct.type_a=p_type; ct.type_b=p_with_type; valid_connection_types.insert(ct); } void GraphEdit::remove_valid_connection_type(int p_type,int p_with_type) { ConnType ct; ct.type_a=p_type; ct.type_b=p_with_type; valid_connection_types.erase(ct); } bool GraphEdit::is_valid_connection_type(int p_type,int p_with_type) const { ConnType ct; ct.type_a=p_type; ct.type_b=p_with_type; return valid_connection_types.has(ct); } void GraphEdit::set_use_snap(bool p_enable) { snap_button->set_pressed(p_enable); update(); } bool GraphEdit::is_using_snap() const{ return snap_button->is_pressed(); } int GraphEdit::get_snap() const{ return snap_amount->get_val(); } void GraphEdit::set_snap(int p_snap) { ERR_FAIL_COND(p_snap<5); snap_amount->set_val(p_snap); update(); } void GraphEdit::_snap_toggled() { update(); } void GraphEdit::_snap_value_changed(double) { update(); } void GraphEdit::_bind_methods() { ObjectTypeDB::bind_method(_MD("connect_node:Error","from","from_port","to","to_port"),&GraphEdit::connect_node); ObjectTypeDB::bind_method(_MD("is_node_connected","from","from_port","to","to_port"),&GraphEdit::is_node_connected); ObjectTypeDB::bind_method(_MD("disconnect_node","from","from_port","to","to_port"),&GraphEdit::disconnect_node); ObjectTypeDB::bind_method(_MD("get_connection_list"),&GraphEdit::_get_connection_list); ObjectTypeDB::bind_method(_MD("get_scroll_ofs"),&GraphEdit::get_scroll_ofs); ObjectTypeDB::bind_method(_MD("set_scroll_ofs","ofs"),&GraphEdit::set_scroll_ofs); ObjectTypeDB::bind_method(_MD("set_zoom","p_zoom"),&GraphEdit::set_zoom); ObjectTypeDB::bind_method(_MD("get_zoom"),&GraphEdit::get_zoom); ObjectTypeDB::bind_method(_MD("set_snap","pixels"),&GraphEdit::set_snap); ObjectTypeDB::bind_method(_MD("get_snap"),&GraphEdit::get_snap); ObjectTypeDB::bind_method(_MD("set_use_snap","enable"),&GraphEdit::set_use_snap); ObjectTypeDB::bind_method(_MD("is_using_snap"),&GraphEdit::is_using_snap); ObjectTypeDB::bind_method(_MD("set_right_disconnects","enable"),&GraphEdit::set_right_disconnects); ObjectTypeDB::bind_method(_MD("is_right_disconnects_enabled"),&GraphEdit::is_right_disconnects_enabled); ObjectTypeDB::bind_method(_MD("_graph_node_moved"),&GraphEdit::_graph_node_moved); ObjectTypeDB::bind_method(_MD("_graph_node_raised"),&GraphEdit::_graph_node_raised); ObjectTypeDB::bind_method(_MD("_top_layer_input"),&GraphEdit::_top_layer_input); ObjectTypeDB::bind_method(_MD("_top_layer_draw"),&GraphEdit::_top_layer_draw); ObjectTypeDB::bind_method(_MD("_scroll_moved"),&GraphEdit::_scroll_moved); ObjectTypeDB::bind_method(_MD("_zoom_minus"),&GraphEdit::_zoom_minus); ObjectTypeDB::bind_method(_MD("_zoom_reset"),&GraphEdit::_zoom_reset); ObjectTypeDB::bind_method(_MD("_zoom_plus"),&GraphEdit::_zoom_plus); ObjectTypeDB::bind_method(_MD("_snap_toggled"),&GraphEdit::_snap_toggled); ObjectTypeDB::bind_method(_MD("_snap_value_changed"),&GraphEdit::_snap_value_changed); ObjectTypeDB::bind_method(_MD("_input_event"),&GraphEdit::_input_event); ObjectTypeDB::bind_method(_MD("_update_scroll_offset"),&GraphEdit::_update_scroll_offset); ObjectTypeDB::bind_method(_MD("_connections_layer_draw"),&GraphEdit::_connections_layer_draw); ObjectTypeDB::bind_method(_MD("set_selected","node"),&GraphEdit::set_selected); ADD_SIGNAL(MethodInfo("connection_request",PropertyInfo(Variant::STRING,"from"),PropertyInfo(Variant::INT,"from_slot"),PropertyInfo(Variant::STRING,"to"),PropertyInfo(Variant::INT,"to_slot"))); ADD_SIGNAL(MethodInfo("disconnection_request",PropertyInfo(Variant::STRING,"from"),PropertyInfo(Variant::INT,"from_slot"),PropertyInfo(Variant::STRING,"to"),PropertyInfo(Variant::INT,"to_slot"))); ADD_SIGNAL(MethodInfo("popup_request", PropertyInfo(Variant::VECTOR2,"p_position"))); ADD_SIGNAL(MethodInfo("duplicate_nodes_request")); ADD_SIGNAL(MethodInfo("node_selected",PropertyInfo(Variant::OBJECT,"node"))); ADD_SIGNAL(MethodInfo("connection_to_empty",PropertyInfo(Variant::STRING,"from"),PropertyInfo(Variant::INT,"from_slot"),PropertyInfo(Variant::VECTOR2,"release_pos"))); ADD_SIGNAL(MethodInfo("delete_nodes_request")); ADD_SIGNAL(MethodInfo("_begin_node_move")); ADD_SIGNAL(MethodInfo("_end_node_move")); ADD_SIGNAL(MethodInfo("scroll_offset_changed",PropertyInfo(Variant::VECTOR2,"ofs"))); } GraphEdit::GraphEdit() { set_focus_mode(FOCUS_ALL); awaiting_scroll_offset_update=false; top_layer=NULL; top_layer=memnew(GraphEditFilter(this)); add_child(top_layer); top_layer->set_stop_mouse(false); top_layer->set_area_as_parent_rect(); top_layer->connect("draw",this,"_top_layer_draw"); top_layer->set_stop_mouse(false); top_layer->connect("input_event",this,"_top_layer_input"); connections_layer = memnew( Control ); add_child(connections_layer); connections_layer->connect("draw",this,"_connections_layer_draw"); connections_layer->set_name("CLAYER"); connections_layer->set_disable_visibility_clip(true); // so it can draw freely and be offseted h_scroll = memnew(HScrollBar); h_scroll->set_name("_h_scroll"); top_layer->add_child(h_scroll); v_scroll = memnew(VScrollBar); v_scroll->set_name("_v_scroll"); top_layer->add_child(v_scroll); updating=false; connecting=false; right_disconnects=false; box_selecting = false; dragging = false; //set large minmax so it can scroll even if not resized yet h_scroll->set_min(-10000); h_scroll->set_max(10000); v_scroll->set_min(-10000); v_scroll->set_max(10000); h_scroll->connect("value_changed", this,"_scroll_moved"); v_scroll->connect("value_changed", this,"_scroll_moved"); zoom = 1; HBoxContainer *zoom_hb = memnew( HBoxContainer ); top_layer->add_child(zoom_hb); zoom_hb->set_pos(Vector2(10,10)); zoom_minus = memnew( ToolButton ); zoom_hb->add_child(zoom_minus); zoom_minus->connect("pressed",this,"_zoom_minus"); zoom_minus->set_focus_mode(FOCUS_NONE); zoom_reset = memnew( ToolButton ); zoom_hb->add_child(zoom_reset); zoom_reset->connect("pressed",this,"_zoom_reset"); zoom_reset->set_focus_mode(FOCUS_NONE); zoom_plus = memnew( ToolButton ); zoom_hb->add_child(zoom_plus); zoom_plus->connect("pressed",this,"_zoom_plus"); zoom_plus->set_focus_mode(FOCUS_NONE); snap_button = memnew( ToolButton ); snap_button->set_toggle_mode(true); snap_button->connect("pressed",this,"_snap_toggled"); snap_button->set_pressed(true); snap_button->set_focus_mode(FOCUS_NONE); zoom_hb->add_child(snap_button); snap_amount = memnew( SpinBox ); snap_amount->set_min(5); snap_amount->set_max(100); snap_amount->set_step(1); snap_amount->set_val(20); snap_amount->connect("value_changed",this,"_snap_value_changed"); zoom_hb->add_child(snap_amount); setting_scroll_ofs=false; }