Add a new Lumina project: desktop-utils/lumina-calculator

This is just a very basic calculator at the moment. It still need more buttons/icons/features/etc added to it, but the algorithm and mathematics are already functional for evaluation expressions containing:
Addition/Subtraction (+/-)
Multiplication/Division( * or x, and /)
Order of operations when mixing operations, including expressions within parentheses

1 files changed, 33 insertions, 0 deletions

diff --git a/src-qt5/desktop-utils/lumina-calculator/mainUI.h b/src-qt5/desktop-utils/lumina-calculator/mainUI.h
new file mode 100644
index 00000000..96414252
--- /dev/null
+++ b/src-qt5/desktop-utils/lumina-calculator/mainUI.h
@@ -0,0 +1,33 @@
+//===========================================
+//  Lumina Desktop source code
+//  Copyright (c) 2016, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#ifndef _LUMINA_CALCULATOR_MAIN_UI_H
+#define _LUMINA_CALCULATOR_MAIN_UI_H
+
+#include <QMainWindow>
+#include <QString>
+#include <QChar>
+
+namespace Ui{
+	class mainUI;
+};
+
+class mainUI : public QMainWindow{
+	Q_OBJECT
+public:
+	mainUI();
+	~mainUI();
+
+private slots:
+	void start_calc();
+
+private:
+	Ui::mainUI *ui;
+
+	double performOperation(double LHS, double RHS, QChar symbol);
+	double strToNumber(QString str); //this is highly-recursive
+};
+#endif