Rack/include/app/ModuleWidget.hpp

#pragma once
#include <app/common.hpp>
#include <widget/OpaqueWidget.hpp>
#include <ui/Menu.hpp>
#include <app/PortWidget.hpp>
#include <app/ParamWidget.hpp>
#include <plugin/Model.hpp>
#include <engine/Module.hpp>


namespace rack {
namespace app {


/** Manages an engine::Module in the rack. */
struct ModuleWidget : widget::OpaqueWidget {
	struct Internal;
	Internal* internal;

	plugin::Model* model = NULL;
	/** Owned. */
	engine::Module* module = NULL;

	/** Note that the indexes of these vectors do not necessarily correspond with the indexes of `Module::params` etc.
	*/
	std::vector<ParamWidget*> params;
	std::vector<PortWidget*> inputs;
	std::vector<PortWidget*> outputs;

	ModuleWidget();
	DEPRECATED ModuleWidget(engine::Module* module) : ModuleWidget() {
		setModule(module);
	}
	~ModuleWidget();

	void draw(const DrawArgs& args) override;
	void drawShadow(const DrawArgs& args);

	void onButton(const event::Button& e) override;
	void onHoverKey(const event::HoverKey& e) override;
	void onDragStart(const event::DragStart& e) override;
	void onDragEnd(const event::DragEnd& e) override;
	void onDragMove(const event::DragMove& e) override;

	/** Associates this ModuleWidget with the Module.
	Transfers ownership.
	*/
	void setModule(engine::Module* module);
	/** Sets the panel and sets the size of the ModuleWidget from the panel.
	Transfers ownership.
	*/
	void setPanel(widget::Widget* panel);
	/** Use `setPanel(createPanel(svg))` instead. */
	void setPanel(std::shared_ptr<Svg> svg);

	/** Convenience functions for adding special widgets (calls addChild()) */
	void addParam(ParamWidget* param);
	void addInput(PortWidget* input);
	void addOutput(PortWidget* output);
	ParamWidget* getParam(int paramId);
	PortWidget* getInput(int inputId);
	PortWidget* getOutput(int outputId);

	/** Serializes/unserializes the module state */
	json_t* toJson();
	void fromJson(json_t* rootJ);
	void copyClipboard();
	void pasteClipboardAction();
	void load(std::string filename);
	void loadAction(std::string filename);
	void loadTemplate();
	void loadDialog();
	void save(std::string filename);
	void saveTemplate();
	void saveDialog();

	/** Disconnects cables from all ports
	Called when the user clicks Disconnect Cables in the context menu.
	*/
	void disconnect();

	/** Resets the parameters of the module and calls the Module's randomize().
	Called when the user clicks Initialize in the context menu.
	*/
	void resetAction();
	/** Randomizes the parameters of the module and calls the Module's randomize().
	Called when the user clicks Randomize in the context menu.
	*/
	void randomizeAction();
	void disconnectAction();
	void cloneAction();
	void bypassAction();
	/** Deletes `this` */
	void removeAction();
	void createContextMenu();
	/** Override to add context menu entries to your subclass.
	It is recommended to add a blank ui::MenuEntry first for spacing.
	*/
	virtual void appendContextMenu(ui::Menu* menu) {}

	math::Vec& dragPos();
	math::Vec& oldPos();
};


} // namespace app
} // namespace rack