From 265552d0db663056e5cbdb0c3f6b49de1766b65f Mon Sep 17 00:00:00 2001
From: Andrew Belt <andrewpbelt@gmail.com>
Date: Thu, 14 Nov 2019 07:27:09 -0500
Subject: [PATCH] Clone cables patched to inputs when a module is cloned.

---
 CHANGELOG.md                |  4 ++++
 include/app/CableWidget.hpp |  6 +++---
 src/app/ModuleWidget.cpp    | 42 ++++++++++++++++++++++++++++++++++---
 3 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80387841..2cd8cad2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,10 @@ In this document, Mod is Ctrl on Windows/Linux and Cmd on Mac.
 	- Add "Primary module" context menu item to VCV Audio modules to select which audio device clocks the engine.
 	- Allow other modules such as VCV Recorder to be the primary module, to render audio faster than real-time.
 	- Remove "Real-time priority" menu item, since the thread priority is now managed elsewhere (RtAudio, etc).
+- Duplicate cables patched to inputs when a module is duplicated.
+- Add module tags to module context menu.
+- Add module manual URL (if plugin developer supplies it) to module context menu item.
+- Add quick access to user module patches from `<Rack user dir>/presets/<plugin slug>/<module slug>` to module context menu.
 - API
 	- Add `Module::configInput()` and `Module::configOutput()` for adding names to ports.
 	- Replace `ParamWidget::paramQuantity` with `ParamWidget::getParamQuantity()`.
diff --git a/include/app/CableWidget.hpp b/include/app/CableWidget.hpp
index 19c5b179..7d43885c 100644
--- a/include/app/CableWidget.hpp
+++ b/include/app/CableWidget.hpp
@@ -12,13 +12,13 @@ namespace app {
 
 
 struct CableWidget : widget::OpaqueWidget {
+	/** Owned. */
+	engine::Cable* cable = NULL;
+	NVGcolor color;
 	PortWidget* inputPort = NULL;
 	PortWidget* outputPort = NULL;
 	PortWidget* hoveredInputPort = NULL;
 	PortWidget* hoveredOutputPort = NULL;
-	/** Owned. */
-	engine::Cable* cable = NULL;
-	NVGcolor color;
 
 	CableWidget();
 	~CableWidget();
diff --git a/src/app/ModuleWidget.cpp b/src/app/ModuleWidget.cpp
index 214251cb..11b4c1d0 100644
--- a/src/app/ModuleWidget.cpp
+++ b/src/app/ModuleWidget.cpp
@@ -778,6 +778,10 @@ void ModuleWidget::disconnectAction() {
 }
 
 void ModuleWidget::cloneAction() {
+	// history::ComplexAction
+	history::ComplexAction* h = new history::ComplexAction;
+
+	// Clone Module
 	engine::Module* clonedModule = model->createModule();
 	// JSON serialization is the obvious way to do this
 	json_t* moduleJ = toJson();
@@ -787,13 +791,45 @@ void ModuleWidget::cloneAction() {
 	clonedModule->id = -1;
 	APP->engine->addModule(clonedModule);
 
+	// Clone ModuleWidget
 	ModuleWidget* clonedModuleWidget = model->createModuleWidget(clonedModule);
 	APP->scene->rack->addModuleAtMouse(clonedModuleWidget);
 
 	// history::ModuleAdd
-	history::ModuleAdd* h = new history::ModuleAdd;
-	h->name = "clone modules";
-	h->setModule(clonedModuleWidget);
+	history::ModuleAdd* hma = new history::ModuleAdd;
+	hma->name = "clone modules";
+	hma->setModule(clonedModuleWidget);
+	h->push(hma);
+
+	// Clone cables attached to input ports
+	for (PortWidget* pw : inputs) {
+		std::list<CableWidget*> cables = APP->scene->rack->getCablesOnPort(pw);
+		for (CableWidget* cw : cables) {
+			// Create cable attached to cloned ModuleWidget's input
+			engine::Cable* clonedCable = new engine::Cable;
+			clonedCable->id = -1;
+			clonedCable->inputModule = clonedModule;
+			clonedCable->inputId = cw->cable->inputId;
+			// If cable is self-patched, attach to cloned module instead
+			if (cw->cable->outputModule == module)
+				clonedCable->outputModule = clonedModule;
+			else
+				clonedCable->outputModule = cw->cable->outputModule;
+			clonedCable->outputId = cw->cable->outputId;
+			APP->engine->addCable(clonedCable);
+
+			app::CableWidget* clonedCw = new app::CableWidget;
+			clonedCw->setCable(clonedCable);
+			clonedCw->color = cw->color;
+			APP->scene->rack->addCable(clonedCw);
+
+			// history::CableAdd
+			history::CableAdd* hca = new history::CableAdd;
+			hca->setCable(clonedCw);
+			h->push(hca);
+		}
+	}
+
 	APP->history->push(h);
 }