Added generic stuff from previous project

1 files changed, 135 insertions, 0 deletions

diff --git a/src/Generic/ConsoleInterface/Menu.cpp b/src/Generic/ConsoleInterface/Menu.cpp
new file mode 100644
index 0000000..3ab857e
--- /dev/null
+++ b/src/Generic/ConsoleInterface/Menu.cpp
@@ -0,0 +1,135 @@
+#include "Menu.h"
+#include "Toolbox.hpp"
+#include <cstring>
+
+Menu::Menu() : Menu("Menu", false, false) {}
+
+/*! \param title C-style string, class stores at most 255 characters (last character is always terminating zero)
+ *  \param backExistsApp Flag whether or not to list the 0-th option as "Exit", rather than "Go Back"
+ *  \param isSubMenu Flag whether or not to show the title as a subTitle or not
+ */
+Menu::Menu(const char* title, bool backExistsApp, bool isSubMenu) : menuOptions() {
+	this->backExistsApp = backExistsApp;
+	this->isSubMenu = isSubMenu;
+	strncpy(this->title, title, 255);
+	this->title[255] = '\0';
+}
+
+/*! \param title C-style string, class stores at most 255 characters (last character is always terminating zero)
+ *  \param backExistsApp Flag whether or not to list the 0-th option as "Exit", rather than "Go Back"
+ *  \param isSubMenu Flag whether or not to show the title as a subTitle or not
+ *  \param commands Pointer to an array of Command instances
+ *  \param commandCount Number of elements that "commands" points to
+ */
+Menu::Menu(const char* title, bool backExistsApp, bool isSubMenu, const Command* commands, unsigned commandCount) {
+	this->backExistsApp = backExistsApp;
+	this->isSubMenu = isSubMenu;
+	menuOptions = List<Command>(commands, commandCount);
+	strncpy(this->title, title, 255);
+	this->title[255] = '\0';
+}
+
+void Menu::addCommand(const Command& command) {
+	menuOptions.add(command);
+}
+
+enum MessageType {
+	NoPrint,
+	Success,
+	Warning,
+	Error,
+};
+const char* msg;
+MessageType msgType;
+
+/*! \param message C-style string, saves to pointer for later reuse when showing the message.
+ *
+ * Stores the message pointer in a global variable (in the cpp file) and
+ * sets it's type as an Error in another global variable (in the cpp file).
+ *
+ * The next time the whole Menu is shown, the message will appear below the title.
+ */
+void Menu::registerError(const char* message) const {
+	msg = message;
+	msgType = Error;
+}
+
+/*! \param message C-style string, saves to pointer for later reuse when showing the message.
+ *
+ * Stores the message pointer in a global variable (in the cpp file) and
+ * sets it's type as a Warning in another global variable (in the cpp file).
+ *
+ * The next time the whole Menu is shown, the message will appear below the title.
+ */
+void Menu::registerWarning(const char* message) const {
+	msg = message;
+	msgType = Warning;
+}
+
+/*! \param message C-style string, saves to pointer for later reuse when showing the message.
+ *
+ * Stores the message pointer in a global variable (in the cpp file) and
+ * sets it's type as Success in another global variable (in the cpp file).
+ *
+ * The next time the whole Menu is shown, the message will appear below the title.
+ */
+void Menu::registerSuccess(const char* message) const {
+	msg = message;
+	msgType = Success;
+}
+
+/*!
+ * Prints the title, then an Error/Warning/Sucess message (if set),
+ * prints all command names as an ordered list (starting from 1),
+ * waits for user input to select one of those commands (by list number)
+ * and finally executes the appropriate command's run() function.
+ *
+ * After the run() function exists, everything is reprinted.
+ * The 0 list index is always "Go Back"/"Exit" and it always stops the reprinting loop.
+ *
+ * If there are no commands, prints "Menu is empty!".
+ * If user input doesn't correspond to any command, registers an error message and reprints.
+ */
+void Menu::navigate() const {
+	if (menuOptions.get_count() == 0) {
+		printLine("Menu is empty!");
+		return;
+	}
+
+	unsigned buffer = 1; // We immedeately read the value of buffer, so this is fine
+
+	while (buffer != 0) {
+		clear();
+		if (isSubMenu)
+			subTitleBox(title);
+		else
+			titleBox(title);
+
+		switch(msgType) {
+			case Error: errorBox(msg); msgType = NoPrint; break;
+			case Warning: warningBox(msg); msgType = NoPrint; break;
+			case Success: successBox(msg); msgType = NoPrint; break;
+			case NoPrint: printLine(""); break;
+		}
+		printLine("");
+
+		resetOrderedList(0);
+		if (backExistsApp)
+			printOrderedListElem("Exit");
+		else
+			printOrderedListElem("Go Back");
+
+		for (unsigned i = 0; i < menuOptions.get_count(); i++)
+			printOrderedListElem(menuOptions[i].get_nameInMenu());
+
+		_printInputBoxLabel("Execute No [0-");
+		print(menuOptions.get_count());
+		print("]: ");
+		read(buffer);
+
+		if (buffer > menuOptions.get_count())
+			registerError("Invalid menu option!");
+		else if (buffer > 0)
+			menuOptions[buffer - 1].run();
+	}
+}