518 lines
12 KiB
C++
518 lines
12 KiB
C++
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#include "graph_edit.h"
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bool GraphEditFilter::has_point(const Point2& p_point) const {
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return ge->_filter_input(p_point);
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}
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GraphEditFilter::GraphEditFilter(GraphEdit *p_edit) {
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ge=p_edit;
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}
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Error GraphEdit::connect_node(const StringName& p_from, int p_from_port,const StringName& p_to,int p_to_port) {
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if (is_node_connected(p_from,p_from_port,p_to,p_to_port))
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return OK;
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Connection c;
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c.from=p_from;
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c.from_port=p_from_port;
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c.to=p_to;
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c.to_port=p_to_port;
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connections.push_back(c);
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top_layer->update();
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return OK;
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}
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bool GraphEdit::is_node_connected(const StringName& p_from, int p_from_port,const StringName& p_to,int p_to_port) {
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for(List<Connection>::Element *E=connections.front();E;E=E->next()) {
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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)
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return true;
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}
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return false;
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}
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void GraphEdit::disconnect_node(const StringName& p_from, int p_from_port,const StringName& p_to,int p_to_port){
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for(List<Connection>::Element *E=connections.front();E;E=E->next()) {
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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) {
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connections.erase(E);
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top_layer->update();
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return;
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}
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}
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}
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void GraphEdit::get_connection_list(List<Connection> *r_connections) {
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*r_connections=connections;
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}
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void GraphEdit::_scroll_moved(double) {
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_update_scroll_offset();
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top_layer->update();
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}
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void GraphEdit::_update_scroll_offset() {
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for(int i=0;i<get_child_count();i++) {
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GraphNode *gn=get_child(i)->cast_to<GraphNode>();
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if (!gn)
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continue;
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Point2 pos=gn->get_offset();
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pos-=Point2(h_scroll->get_val(),v_scroll->get_val());
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gn->set_pos(pos);
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}
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}
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void GraphEdit::_update_scroll() {
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if (updating)
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return;
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updating=true;
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Rect2 screen;
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screen.size=get_size();
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for(int i=0;i<get_child_count();i++) {
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GraphNode *gn=get_child(i)->cast_to<GraphNode>();
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if (!gn)
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continue;
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Rect2 r;
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r.pos=gn->get_offset();
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r.size=gn->get_size();
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screen = screen.merge(r);
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}
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h_scroll->set_min(screen.pos.x);
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h_scroll->set_max(screen.pos.x+screen.size.x);
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h_scroll->set_page(get_size().x);
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if (h_scroll->get_max() - h_scroll->get_min() <= h_scroll->get_page())
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h_scroll->hide();
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else
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h_scroll->show();
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v_scroll->set_min(screen.pos.y);
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v_scroll->set_max(screen.pos.y+screen.size.y);
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v_scroll->set_page(get_size().y);
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if (v_scroll->get_max() - v_scroll->get_min() <= v_scroll->get_page())
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v_scroll->hide();
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else
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v_scroll->show();
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_update_scroll_offset();
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updating=false;
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}
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void GraphEdit::_graph_node_raised(Node* p_gn) {
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GraphNode *gn=p_gn->cast_to<GraphNode>();
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ERR_FAIL_COND(!gn);
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gn->raise();
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top_layer->raise();
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}
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void GraphEdit::_graph_node_moved(Node *p_gn) {
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GraphNode *gn=p_gn->cast_to<GraphNode>();
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ERR_FAIL_COND(!gn);
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//gn->set_pos(gn->get_offset()+scroll_offset);
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top_layer->update();
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}
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void GraphEdit::add_child_notify(Node *p_child) {
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top_layer->call_deferred("raise"); //top layer always on top!
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GraphNode *gn = p_child->cast_to<GraphNode>();
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if (gn) {
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gn->connect("offset_changed",this,"_graph_node_moved",varray(gn));
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gn->connect("raise_request",this,"_graph_node_raised",varray(gn));
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_graph_node_moved(gn);
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gn->set_stop_mouse(false);
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}
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}
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void GraphEdit::remove_child_notify(Node *p_child) {
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top_layer->call_deferred("raise"); //top layer always on top!
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GraphNode *gn = p_child->cast_to<GraphNode>();
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if (gn) {
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gn->disconnect("offset_changed",this,"_graph_node_moved");
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gn->disconnect("raise_request",this,"_graph_node_raised");
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}
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}
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void GraphEdit::_notification(int p_what) {
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if (p_what==NOTIFICATION_READY) {
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Size2 size = top_layer->get_size();
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Size2 hmin = h_scroll->get_combined_minimum_size();
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Size2 vmin = v_scroll->get_combined_minimum_size();
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v_scroll->set_anchor_and_margin(MARGIN_LEFT,ANCHOR_END,vmin.width);
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v_scroll->set_anchor_and_margin(MARGIN_RIGHT,ANCHOR_END,0);
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v_scroll->set_anchor_and_margin(MARGIN_TOP,ANCHOR_BEGIN,0);
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v_scroll->set_anchor_and_margin(MARGIN_BOTTOM,ANCHOR_END,0);
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h_scroll->set_anchor_and_margin(MARGIN_LEFT,ANCHOR_BEGIN,0);
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h_scroll->set_anchor_and_margin(MARGIN_RIGHT,ANCHOR_END,0);
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h_scroll->set_anchor_and_margin(MARGIN_TOP,ANCHOR_END,hmin.height);
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h_scroll->set_anchor_and_margin(MARGIN_BOTTOM,ANCHOR_END,0);
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}
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if (p_what==NOTIFICATION_DRAW) {
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VS::get_singleton()->canvas_item_set_clip(get_canvas_item(),true);
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}
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if (p_what==NOTIFICATION_RESIZED) {
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_update_scroll();
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top_layer->update();
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}
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}
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bool GraphEdit::_filter_input(const Point2& p_point) {
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Ref<Texture> port =get_icon("port","GraphNode");
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float grab_r=port->get_width()*0.5;
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for(int i=get_child_count()-1;i>=0;i--) {
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GraphNode *gn=get_child(i)->cast_to<GraphNode>();
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if (!gn)
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continue;
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for(int j=0;j<gn->get_connection_output_count();j++) {
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Vector2 pos = gn->get_connection_output_pos(j)+gn->get_pos();
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if (pos.distance_to(p_point)<grab_r)
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return true;
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}
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for(int j=0;j<gn->get_connection_input_count();j++) {
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Vector2 pos = gn->get_connection_input_pos(j)+gn->get_pos();
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if (pos.distance_to(p_point)<grab_r)
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return true;
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}
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}
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return false;
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}
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void GraphEdit::_top_layer_input(const InputEvent& p_ev) {
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if (p_ev.type==InputEvent::MOUSE_BUTTON && p_ev.mouse_button.button_index==BUTTON_LEFT && p_ev.mouse_button.pressed) {
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Ref<Texture> port =get_icon("port","GraphNode");
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Vector2 mpos(p_ev.mouse_button.x,p_ev.mouse_button.y);
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float grab_r=port->get_width()*0.5;
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for(int i=get_child_count()-1;i>=0;i--) {
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GraphNode *gn=get_child(i)->cast_to<GraphNode>();
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if (!gn)
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continue;
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for(int j=0;j<gn->get_connection_output_count();j++) {
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Vector2 pos = gn->get_connection_output_pos(j)+gn->get_pos();
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if (pos.distance_to(mpos)<grab_r) {
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connecting=true;
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connecting_from=gn->get_name();
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connecting_index=j;
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connecting_out=true;
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connecting_type=gn->get_connection_output_type(j);
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connecting_color=gn->get_connection_output_color(j);
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connecting_target=false;
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connecting_to=pos;
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return;
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}
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}
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for(int j=0;j<gn->get_connection_input_count();j++) {
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Vector2 pos = gn->get_connection_input_pos(j)+gn->get_pos();
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if (pos.distance_to(mpos)<grab_r) {
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connecting=true;
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connecting_from=gn->get_name();
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connecting_index=j;
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connecting_out=false;
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connecting_type=gn->get_connection_input_type(j);
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connecting_color=gn->get_connection_input_color(j);
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connecting_target=false;
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connecting_to=pos;
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return;
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}
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}
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}
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}
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if (p_ev.type==InputEvent::MOUSE_MOTION && connecting) {
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connecting_to=Vector2(p_ev.mouse_motion.x,p_ev.mouse_motion.y);
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connecting_target=false;
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top_layer->update();
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Ref<Texture> port =get_icon("port","GraphNode");
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Vector2 mpos(p_ev.mouse_button.x,p_ev.mouse_button.y);
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float grab_r=port->get_width()*0.5;
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for(int i=get_child_count()-1;i>=0;i--) {
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GraphNode *gn=get_child(i)->cast_to<GraphNode>();
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if (!gn)
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continue;
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if (!connecting_out) {
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for(int j=0;j<gn->get_connection_output_count();j++) {
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Vector2 pos = gn->get_connection_output_pos(j)+gn->get_pos();
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int type =gn->get_connection_output_type(j);
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if (type==connecting_type && pos.distance_to(mpos)<grab_r) {
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connecting_target=true;
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connecting_to=pos;
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connecting_target_to=gn->get_name();
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connecting_target_index=j;
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return;
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}
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}
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} else {
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for(int j=0;j<gn->get_connection_input_count();j++) {
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Vector2 pos = gn->get_connection_input_pos(j)+gn->get_pos();
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int type =gn->get_connection_input_type(j);
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if (type==connecting_type && pos.distance_to(mpos)<grab_r) {
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connecting_target=true;
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connecting_to=pos;
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connecting_target_to=gn->get_name();
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connecting_target_index=j;
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return;
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}
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}
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}
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}
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}
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if (p_ev.type==InputEvent::MOUSE_BUTTON && p_ev.mouse_button.button_index==BUTTON_LEFT && !p_ev.mouse_button.pressed) {
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if (connecting && connecting_target) {
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String from = connecting_from;
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int from_slot = connecting_index;
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String to =connecting_target_to;
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int to_slot = connecting_target_index;
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if (!connecting_out) {
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SWAP(from,to);
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SWAP(from_slot,to_slot);
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}
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emit_signal("connection_request",from,from_slot,to,to_slot);
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}
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connecting=false;
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top_layer->update();
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}
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}
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void GraphEdit::_draw_cos_line(const Vector2& p_from, const Vector2& p_to,const Color& p_color) {
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static const int steps = 20;
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Rect2 r;
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r.pos=p_from;
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r.expand_to(p_to);
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Vector2 sign=Vector2((p_from.x < p_to.x) ? 1 : -1,(p_from.y < p_to.y) ? 1 : -1);
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bool flip = sign.x * sign.y < 0;
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Vector2 prev;
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for(int i=0;i<=steps;i++) {
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float d = i/float(steps);
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float c=-Math::cos(d*Math_PI) * 0.5+0.5;
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if (flip)
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c=1.0-c;
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Vector2 p = r.pos+Vector2(d*r.size.width,c*r.size.height);
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if (i>0) {
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top_layer->draw_line(prev,p,p_color,2);
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||
|
|
}
|
||
|
|
|
||
|
|
prev=p;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void GraphEdit::_top_layer_draw() {
|
||
|
|
|
||
|
|
_update_scroll();
|
||
|
|
|
||
|
|
if (connecting) {
|
||
|
|
|
||
|
|
Node *fromn = get_node(connecting_from);
|
||
|
|
ERR_FAIL_COND(!fromn);
|
||
|
|
GraphNode *from = fromn->cast_to<GraphNode>();
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
_draw_cos_line(pos,topos,col);
|
||
|
|
}
|
||
|
|
|
||
|
|
List<List<Connection>::Element* > to_erase;
|
||
|
|
for(List<Connection>::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<GraphNode>();
|
||
|
|
|
||
|
|
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<GraphNode>();
|
||
|
|
|
||
|
|
if (!gto) {
|
||
|
|
to_erase.push_back(E);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
Vector2 frompos=gfrom->get_connection_output_pos(E->get().from_port)+gfrom->get_pos();
|
||
|
|
Color color = gfrom->get_connection_output_color(E->get().from_port);
|
||
|
|
Vector2 topos=gto->get_connection_input_pos(E->get().to_port)+gto->get_pos();
|
||
|
|
_draw_cos_line(frompos,topos,color);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
while(to_erase.size()) {
|
||
|
|
connections.erase(to_erase.front()->get());
|
||
|
|
to_erase.pop_front();
|
||
|
|
}
|
||
|
|
//draw connections
|
||
|
|
}
|
||
|
|
|
||
|
|
void GraphEdit::_input_event(const InputEvent& p_ev) {
|
||
|
|
|
||
|
|
if (p_ev.type==InputEvent::MOUSE_MOTION && p_ev.mouse_motion.button_mask&BUTTON_MASK_MIDDLE) {
|
||
|
|
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 );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void GraphEdit::clear_connections() {
|
||
|
|
|
||
|
|
connections.clear();
|
||
|
|
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("_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("_input_event"),&GraphEdit::_input_event);
|
||
|
|
|
||
|
|
ADD_SIGNAL(MethodInfo("connection_request",PropertyInfo(Variant::STRING,"from"),PropertyInfo(Variant::INT,"from_slot"),PropertyInfo(Variant::STRING,"to"),PropertyInfo(Variant::INT,"to_slot")));
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
GraphEdit::GraphEdit() {
|
||
|
|
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");
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
h_scroll->connect("value_changed", this,"_scroll_moved");
|
||
|
|
v_scroll->connect("value_changed", this,"_scroll_moved");
|
||
|
|
}
|