From b50692ba650418aa06cbd2662b4ff698c7d3f961 Mon Sep 17 00:00:00 2001
From: groucho <groucho>
Date: Sat, 15 Feb 2003 11:45:26 +0000
Subject: Forgot to add the sources :-}

---
(limited to 'noncore/tools/euroconv/calckeypad.cpp')

diff --git a/noncore/tools/euroconv/calckeypad.cpp b/noncore/tools/euroconv/calckeypad.cpp
new file mode 100644
index 0000000..4156570
--- a/dev/null
+++ b/noncore/tools/euroconv/calckeypad.cpp
@@ -0,0 +1,191 @@
+/****************************************************************************
+ *
+ * File:        calckeypad.cpp
+ *
+ * Description:  
+ *              
+ *               
+ * Authors:     Eric Santonacci <Eric.Santonacci@talc.fr>
+ *
+ * Requirements:    Qt
+ *
+ * $Id$
+ *
+ ***************************************************************************/
+
+#include <qmessagebox.h>
+
+#include "calckeypad.h"
+
+
+KeyPad::KeyPad(LCDDisplay *lcd, QWidget *parent, const char *name )
+    : QGrid(5, parent, name){
+
+
+// save lcd at init
+display     = lcd;
+// Init variable
+dCurrent    = 0;
+iLenCurrent = 1;
+bIsDec      = false;
+dDecCurrent = 0;
+iPreviousOperator   = 0;
+dPreviousValue      = 0;
+
+// First line
+btnClear    = new QPushButton("CE/C", this, "Clear");
+btn7        = new QPushButton("7", this, "7");
+btn8        = new QPushButton("8", this, "8");
+btn9        = new QPushButton("9", this, "9");
+btnPlus     = new QPushButton("+", this, "+");
+// 2nd line
+btnPercent  = new QPushButton("%", this, "percent");
+btn4        = new QPushButton("4", this, "4");
+btn5        = new QPushButton("5", this, "5");
+btn6        = new QPushButton("6", this, "6");
+btnMinus    = new QPushButton("-", this, "-");
+// 3rd line
+btnF1       = new QPushButton("",this, "F1");
+btn1        = new QPushButton("1", this, "1");
+btn2        = new QPushButton("2", this, "2");
+btn3        = new QPushButton("3", this, "3");
+btnMultiply = new QPushButton("X", this, "X");
+// 4th line
+btnAbout    = new QPushButton("?", this, "About");
+btn0        = new QPushButton("0", this, "0");
+btnDot      = new QPushButton(".", this, "dot");
+btnEqual    = new QPushButton("=", this, "equal");
+btnDivide   = new QPushButton("/", this, "divide");
+
+// Digit key
+grpbtnDigits = new QButtonGroup(0, "digits");
+grpbtnDigits->insert(btn0, 0);
+grpbtnDigits->insert(btn1, 1);
+grpbtnDigits->insert(btn2, 2);
+grpbtnDigits->insert(btn3, 3);
+grpbtnDigits->insert(btn4, 4);
+grpbtnDigits->insert(btn5, 5);
+grpbtnDigits->insert(btn6, 6);
+grpbtnDigits->insert(btn7, 7);
+grpbtnDigits->insert(btn8, 8);
+grpbtnDigits->insert(btn9, 9);
+
+// Operator key
+grpbtnOperators = new QButtonGroup(0, "operator");
+grpbtnOperators->insert(btnPlus, 1);
+grpbtnOperators->insert(btnMinus,2);
+grpbtnOperators->insert(btnMultiply,3);
+grpbtnOperators->insert(btnDivide,4);
+grpbtnOperators->insert(btnEqual,5);
+
+
+// SIGNALS AND SLOTS
+connect(grpbtnDigits, SIGNAL(clicked(int) ), this, SLOT(enterDigits(int)));
+connect(grpbtnOperators, SIGNAL(clicked(int)), this, SLOT(operatorPressed(int)));
+connect(btnClear, SIGNAL(clicked()), this, SLOT(clearLCD()));
+connect(btnAbout, SIGNAL(clicked()), this, SLOT(aboutDialog()));
+connect(btnDot, SIGNAL(clicked()), this, SLOT(gotoDec()));
+}
+
+
+/***********************************************************************
+ * SLOT: enterDigits calculates the value to display and display it.
+ **********************************************************************/
+void KeyPad::enterDigits(int i){
+
+if(!dCurrent)
+    dCurrent = i;
+else if(!bIsDec){
+    if(iLenCurrent > 9)
+        return;
+    dCurrent *= 10;
+    dCurrent += i;
+    iLenCurrent++;
+}else{
+    dCurrent += i*dDecCurrent;
+    dDecCurrent /= 10;
+}
+
+display->setValue(dCurrent);
+}
+
+/***********************************************************************
+ * SLOT: Operator has been pressed
+ **********************************************************************/
+void KeyPad::operatorPressed(int i){
+
+if(iPreviousOperator){
+    switch(iPreviousOperator){
+        case 1: // Plus +
+            dCurrent += dPreviousValue;
+            break;
+
+        case 2: // Minus -
+            dCurrent = dPreviousValue - dCurrent;
+            break;
+
+        case 3: // Multiply *
+            dCurrent *= dPreviousValue;
+            break;
+
+        case 4: // Divide /
+            dCurrent = dPreviousValue / dCurrent;
+            break;
+            
+    }
+    display->setValue(dCurrent);
+}
+if(i == 5){
+    // key '=' pressed
+    dPreviousValue      = 0;
+    iPreviousOperator   = 0;
+    // We don't want to add digits
+    iLenCurrent         = 100;
+}else{
+    dPreviousValue      = dCurrent;
+    iPreviousOperator   = i;
+    // reset LCD for next digit
+    dCurrent            = 0;
+    iLenCurrent         = 1;
+    bIsDec              = false;
+    dDecCurrent         = 0;
+}
+
+}
+/***********************************************************************
+ * SLOT: clearLCD  CE/C has been pressed
+ **********************************************************************/
+void KeyPad::clearLCD(void){
+
+dCurrent            = 0;
+iLenCurrent         = 1;
+bIsDec              = false;
+dDecCurrent         = 0;
+iPreviousOperator   = 0;
+dPreviousValue      = 0;
+display->setValue(0);
+}
+
+/***********************************************************************
+ * SLOT: gotoDec Dot has been pressed
+ **********************************************************************/
+void KeyPad::gotoDec(void){
+
+bIsDec      = true;
+dDecCurrent = 0.1;
+}
+
+
+
+/***********************************************************************
+ * SLOT: Display About Dialog...
+ **********************************************************************/
+void KeyPad::aboutDialog(void){
+
+QMessageBox::about( this, "About Euroconv",
+                         "Euroconv is an Euro converter\n\n"
+                         "Copyright 2003 TALC Informatique.\n"
+                         "Under GPL license\n\n"
+                         "Written by Eric Santonacci for Opie\n"
+                         "http://opie.handhelds.org\n" );
+}
--
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