Add menu item to port menu to set color of cables.

include/history.hpp

@@ -157,6 +157,19 @@ struct CableRemove : InverseAction<CableAdd> {
 };
 
 
+struct CableColorChange : Action {
+	int64_t cableId;
+	NVGcolor newColor;
+	NVGcolor oldColor;
+	void setCable(app::CableWidget* cw);
+	void undo() override;
+	void redo() override;
+	CableColorChange() {
+		name = "change cable color";
+	}
+};
+
+
 struct State {
 	struct Internal;
 	Internal* internal;

src/app/PortWidget.cpp

@@ -118,6 +118,22 @@ struct PortCloneCableItem : ui::MenuItem {
 };
 
 
+struct CableColorItem : ColorMenuItem {
+	CableWidget* cw;
+
+	void onAction(const ActionEvent& e) override {
+		// history::CableColorChange
+		history::CableColorChange* h = new history::CableColorChange;
+		h->setCable(cw);
+		h->newColor = color;
+		h->oldColor = cw->color;
+		APP->history->push(h);
+
+		cw->color = color;
+	}
+};
+
+
 struct PortCableItem : ColorMenuItem {
 	PortWidget* pw;
 	CableWidget* cw;
@@ -136,6 +152,21 @@ struct PortCableItem : ColorMenuItem {
 			doAction();
 		}
 	}
+
+	ui::Menu* createChildMenu() override {
+		ui::Menu* menu = new ui::Menu;
+
+		for (NVGcolor color : settings::cableColors) {
+			// Include extra leading spaces for the color circle
+			CableColorItem* item = createMenuItem<CableColorItem>("     Set color");
+			item->disabled = color::isEqual(color, cw->color);
+			item->cw = cw;
+			item->color = color;
+			menu->addChild(item);
+		}
+
+		return menu;
+	}
 };
 
 
@@ -261,19 +292,20 @@ void PortWidget::createContextMenu() {
 
 	if (!cws.empty()) {
 		menu->addChild(new ui::MenuSeparator);
-	}
-
-	// Cable items
-	for (auto it = cws.rbegin(); it != cws.rend(); it++) {
-		CableWidget* cw = *it;
-		PortWidget* pw = (type == engine::Port::INPUT) ? cw->outputPort : cw->inputPort;
-		engine::PortInfo* portInfo = pw->getPortInfo();
-
-		PortCableItem* item = createMenuItem<PortCableItem>("     " + portInfo->module->model->name + ": " + portInfo->getName());
-		item->color = cw->color;
-		item->pw = this;
-		item->cw = cw;
-		menu->addChild(item);
+		menu->addChild(createMenuLabel("Click+drag to grab cable"));
+
+		// Cable items
+		for (auto it = cws.rbegin(); it != cws.rend(); it++) {
+			CableWidget* cw = *it;
+			PortWidget* pw = (type == engine::Port::INPUT) ? cw->outputPort : cw->inputPort;
+			engine::PortInfo* portInfo = pw->getPortInfo();
+
+			PortCableItem* item = createMenuItem<PortCableItem>("     " + portInfo->module->model->name + ": " + portInfo->getName(), RIGHT_ARROW);
+			item->color = cw->color;
+			item->pw = this;
+			item->cw = cw;
+			menu->addChild(item);
+		}
 	}
 }
 

src/history.cpp

@@ -192,6 +192,28 @@ void CableAdd::redo() {
 }
 
 
+void CableColorChange::setCable(app::CableWidget* cw) {
+	assert(cw);
+	assert(cw->cable);
+	assert(cw->cable->id >= 0);
+	cableId = cw->cable->id;
+}
+
+void CableColorChange::undo() {
+	app::CableWidget* cw = APP->scene->rack->getCable(cableId);
+	if (!cw)
+		return;
+	cw->color = oldColor;
+}
+
+void CableColorChange::redo() {
+	app::CableWidget* cw = APP->scene->rack->getCable(cableId);
+	if (!cw)
+		return;
+	cw->color = newColor;
+}
+
+
 State::State() {
 	clear();
 }