Selection working partially. Needs global z-index hovering to work reliably.

src/canvas.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "draggable.h"
+#include "raylib.h"
 #include "raymath.h"
 #include "state.h"
 namespace VISEQ::APP::CANVAS {
@@ -10,6 +11,7 @@ namespace VISEQ::APP::CANVAS {
 
 			Camera2D camera;
 			Vec2Df camera_delta;
+			Vec2Df select_start;
 
 			virtual bool hovering() override {	
 				return true;
@@ -23,15 +25,33 @@ namespace VISEQ::APP::CANVAS {
 			
 			virtual void drawStart(){
 				BeginMode2D(camera);
+				state->hovering = false;
+				if(hovering()) state->istate = InteractionState::HOVER_CANVAS;
 			}
 
 			virtual void drawEnd(){
 				EndMode2D();
 			}
 			
+			void select(){
+
+				if(state->mouse_left.clicked){
+					select_start = state->screen_mouse;
+					state->istate = InteractionState::DRAW_SELECTION;
+				}
+			
+				if(state->mouse_left.down){
+					Vec2Df select1 = {state->screen_mouse.x > select_start.x ? select_start.x : state->screen_mouse.x, state->screen_mouse.y > select_start.y ? select_start.y : state->screen_mouse.y};
+					Vec2Df select2 = {state->screen_mouse.x > select_start.x ? state->screen_mouse.x - select_start.x : select_start.x - state->screen_mouse.x, state->screen_mouse.y > select_start.y ? state->screen_mouse.y - select_start.y : select_start.y - state->screen_mouse.y};
+					DrawRectangleLines(select1.x, select1.y, select2.x, select2.y, (Color){150,150,150,150});
+					state->selection = (Rectangle){select1.x, select1.y, select2.x, select2.y};
+				}
+			}
+
 			virtual void draw(){
 				camera_delta = state->mouse_delta * (-1.0f/camera.zoom);
 				if(hovering()) drag();
+				if(state->istate == InteractionState::HOVER_CANVAS || state->istate == InteractionState::DRAW_SELECTION) select();
 
 				float wheel = GetMouseWheelMove();
 				if(wheel != 0){

src/connector.h

@@ -18,6 +18,8 @@ namespace VISEQ::GRAPH {
 
 			std::shared_ptr<GraphItem> parent;
 		
+			bool hover_connect = false;
+
 			float radius = 5.0f;
 			float orbit = 14.0f;
 			Vec2Df center_position;

src/graph-item.h

@@ -6,7 +6,7 @@
 #include <memory>
 
 namespace VISEQ::GRAPH {
-	class GraphItem{
+	class GraphItem : public std::enable_shared_from_this<GraphItem>{
 
 		public:
 			GraphItem() {newId(-1);}
@@ -20,6 +20,10 @@ namespace VISEQ::GRAPH {
 
 			int id = 0;
 
+			std::shared_ptr<GraphItem> getptr(){
+				return shared_from_this();
+			}
+
 			void newId(int start){
 				static int _id;
 				if(start > -1) _id = start;

src/graph-manager.h

@@ -2,6 +2,7 @@
 
 
 #include "datatypes.h"
+#include "state.h"
 #include "vmath.h"
 #include "raylib.h"
 #include "raymath.h"
@@ -44,8 +45,12 @@ namespace VISEQ::GRAPH {
 			EDGES::VEC_SPTR_Edge remove_edges;
 			EDGES::VEC_SPTR_Edge split_edges;
 
+			VEC_SPTR_Node selected_nodes;
+
 			std::map<NODES::SPTR_Node, int> counter;
 
+			std::shared_ptr<APP::State> state = APP::State::get();
+
 			NODES::SPTR_Node getRandomNode(){
 				VEC_SPTR_GraphItem o; 
 				std::ranges::sample(nodes, std::back_inserter(o), 1, std::mt19937{std::random_device{}()});
@@ -294,13 +299,26 @@ namespace VISEQ::GRAPH {
 							Vec2Df nb_position = nb->position - ((nb->position - node->position)).norm() * 20.0f;
 							DrawLineV(n_position, nb_position, VS_COLOR_PINK);
 						}
-						
 					}
 				}
 			}
 
 			void drawNodes(Vec2Df mouse_pos, Camera2D camera){
 				for(auto n : nodes){
+					if(CheckCollisionPointRec(n->position, state->selection)) {
+						n->in_selection_rect = true;
+					} else {
+						n->in_selection_rect = false;
+					}
+					if(state->istate == APP::InteractionState::DRAW_SELECTION && state->mouse_left.released){
+						if(CheckCollisionPointRec(n->position, state->selection)) {
+							n->selected = true;
+							n->in_selection_rect = false;
+						} else {
+							if(!state->keys_down.shift) n->selected = false;
+						}
+						state->selection = (Rectangle){0,0,0,0};
+					}
 					n->update();
 					if(n->picked_up) drawNeighborLines(n, mouse_pos, camera);
 					n->draw(mouse_pos, camera);

src/interactable.h

@@ -8,6 +8,13 @@ namespace VISEQ::BASE {
 			Interactable() {}
 			virtual ~Interactable() {}
 
+			bool in_selection_rect = false;
+			bool selected = false;
+
+			bool copied = false;
+			bool highlighted = false;
+			bool erase = false;
+
 			virtual bool hovering() = 0;
 
 			virtual bool clicked() {

src/midi-node.h

@@ -166,8 +166,8 @@ namespace VISEQ::GRAPH::NODES {
 					gate_color = ColorAlphaBlend(VS_COLOR_RED, (Color){232, 125, 62, (unsigned char)Clamp(255 - midi_gate_map, 0, 255)}, WHITE);
 					break;}
 			}
-			if(!picked_up && !selected && !in_rect && !hovering()) DrawCircle(position.x, position.y, radius, gate_color);
-			if(selected || picked_up || in_rect || hovering()) DrawCircle(position.x, position.y, radius, (Color){108, 153, 187, 255});
+			if(!picked_up && !selected && !in_selection_rect && !hovering()) DrawCircle(position.x, position.y, radius, gate_color);
+			if(selected || picked_up || in_selection_rect || hovering()) DrawCircle(position.x, position.y, radius, (Color){108, 153, 187, 255});
 
 			if(distributionMode == Distribution::RANDOM) DrawCircle(position.x, position.y, radius/2.0f, VS_COLOR_PINK);
 			if(distributionMode == Distribution::ROUNDROBIN) DrawCircle(position.x, position.y, radius/2.0f, VS_COLOR_YELLOW);

src/moveable.h

@@ -21,16 +21,6 @@ namespace VISEQ::BASE {
 		Vec2Df position;
 		Vec2Df direction;
 		
-		bool in_rect = false;
-		
-		bool hover_connect = false;
-		bool connecting = false;
-		bool selected = false;
-		bool highlighted = false;
-		bool copied = false;
-		
-		bool erase = false;
-
 		virtual void setPosition(Vec2Df _position) {position = _position;}
 		virtual Vec2Df getPosition() {return position;};
 		virtual void update(double frametime) {};

src/node.h

@@ -25,7 +25,7 @@ namespace VISEQ::GRAPH::NODES {
 		Node(Vec2Df p) : Draggable(p) {}
 
 		void addConnector() {
-			connectors.emplace_back(std::make_shared<Connector>(std::make_shared<GraphItem>(this), position, radius + 5.0f));
+			connectors.emplace_back(std::make_shared<Connector>(GraphItem::getptr(), position, radius + 5.0f));
 			connectors.back()->init();
 		}
 		
@@ -60,8 +60,8 @@ namespace VISEQ::GRAPH::NODES {
 		}
 
 		void update() override{
-			
-			if(pickedUp()) drag();
+			if(hovering()) state->hovering = true;	
+			if(pickedUp() || selected) drag();
 			if(released()) putDown();
 			int free_connectors = 0;
 			for(auto c : connectors){

src/state.h

@@ -47,6 +47,8 @@ namespace VISEQ::APP{
 			
 			int node_mode = 0;
 			
+			bool hovering = false;
+
 			MouseState mouse_left;
 			MouseState mouse_right;
 			MouseState mouse_middle;
@@ -55,6 +57,7 @@ namespace VISEQ::APP{
 			ModifierKeys keys_pressed;
 			ModifierKeys keys_released;
 
+			Rectangle selection;
 
 			Vec2Df mouse_delta;