From ab58175b6fbfa71c3ca42f66a6487d8fac499cfe Mon Sep 17 00:00:00 2001
From: Christian Colglazier <christian@cacolglazier.com>
Date: Sun, 24 Oct 2021 16:39:05 -0400
Subject: [PATCH] Menu item data structure

---
 src/menu.h        |  3 +-
 src/menu_item.cpp | 63 ++++++++++++++++++++++++++++++++
 src/menu_item.h   | 93 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 157 insertions(+), 2 deletions(-)
 create mode 100644 src/menu_item.cpp
 create mode 100644 src/menu_item.h

diff --git a/src/menu.h b/src/menu.h
index 7404889..fd4521a 100644
--- a/src/menu.h
+++ b/src/menu.h
@@ -4,6 +4,7 @@
 #define CASCADE_MENU_H_
 
 #include "daisy_patch.h"
+#include "menu_item.h"
 #include "util.h"
 #include "droplets/droplet_manager.h"
 
@@ -11,8 +12,6 @@
 
 using namespace daisy;
 
-enum class MenuState {kSplit, kChange, kVCO, kNoise};
-
 class Menu {
  private:
   DaisyPatch* patch;
diff --git a/src/menu_item.cpp b/src/menu_item.cpp
new file mode 100644
index 0000000..b2c6cd9
--- /dev/null
+++ b/src/menu_item.cpp
@@ -0,0 +1,63 @@
+#include "menu_item.h"
+
+MenuItem::MenuItem(MenuState m_state, char* m_title) {
+  state = m_state;
+  this->SetTitle(m_title);
+  visible = true;
+  previous = NULL;
+  next = NULL;
+}
+
+char* MenuItem::GetTitle() {
+  return title;
+}
+
+void MenuItem::SetTitle(char* m_title) {
+  title = m_title;
+}
+
+MenuItem* MenuItem::GetPrevious() {
+  return previous;
+}
+
+void MenuItem::SetPrevious(MenuItem* item) {
+  previous = item;
+}
+
+MenuItem* MenuItem::GetNext() {
+  return next;
+}
+
+void MenuItem::SetNext(MenuItem* item) {
+  next = item;
+}
+
+MenuItem* MenuItem::GetPreviousVisible() {
+  if (this->GetPrevious() == NULL ||
+      this->GetPrevious()->IsVisible()) {
+    return this->GetPrevious();
+  } else {
+    return this->GetPrevious()->GetPreviousVisible();
+  }
+}
+
+MenuItem* MenuItem::GetNextVisible() {
+  if (this->GetNext() == NULL ||
+      this->GetNext()->IsVisible()) {
+    return this->GetNext();
+  } else {
+    return this->GetNext()->GetNextVisible();
+  }
+}
+
+bool MenuItem::IsVisible() {
+  return visible;
+}
+
+void MenuItem::SetVisibility(bool m_visible) {
+  visible = m_visible;
+}
+
+void MenuItem::ToggleVisibility() {
+  visible = !visible;
+}
diff --git a/src/menu_item.h b/src/menu_item.h
new file mode 100644
index 0000000..3bac605
--- /dev/null
+++ b/src/menu_item.h
@@ -0,0 +1,93 @@
+#pragma once
+
+#ifndef CASCADE_MENU_ITEM_H_
+#define CASCADE_MENU_ITEM_H_
+
+enum class MenuState {kSplit, kChange, kVCO, kNoise};
+
+class MenuItem {
+ private:
+  MenuState state;
+  char* title;
+  bool visible;
+  MenuItem* previous;
+  MenuItem* next;
+ public:
+  MenuItem(MenuState m_state, char* m_title);
+  
+  /*
+   * Returns the title of the menu item.
+   * 
+   * @return menu item title
+   */
+  char* GetTitle();
+
+  /*
+   * Sets the title for a munu item.
+   * 
+   * @param menu title
+   */
+  void SetTitle(char* m_title);
+  
+  /*
+   * Returns the previous menu item.
+   * 
+   * @return prvious menu item
+   */
+  MenuItem* GetPrevious();
+
+  /*
+   * Sets the previous menu item.
+   *
+   * @param previous menu item
+   */
+  void SetPrevious(MenuItem* item);
+
+  /*
+   * Returns the next menu item.
+   *
+   * @return next menu item
+   */
+  MenuItem* GetNext();
+  /*
+   * Sets the next menu item,
+   *
+   * @param next menu item
+   */
+  void SetNext(MenuItem* item);
+
+  /*
+   * Returns the previous visible menu item.
+   *
+   * @return previous visible munu item
+   */
+  MenuItem* GetPreviousVisible();
+
+  /*
+   * Returns the next visible menu item.
+   *
+   * @return next visible menu item
+   */
+  MenuItem* GetNextVisible();
+
+  /*
+   * Returns if the menu item is visible.
+   *
+   * @return visibility
+   */
+  bool IsVisible();
+
+  /*
+   * Sets the visibility of the menu item.
+   *
+   * @param visibility state
+   */
+  void SetVisibility(bool m_visible);
+
+  /*
+   * Toggles visibility of menu item.
+   */
+  void ToggleVisibility();
+};
+
+#endif // CASCADE_MENU_ITEM_H_