| -rw-r--r-- | noncore/tools/euroconv/calckeypad.cpp | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/noncore/tools/euroconv/calckeypad.cpp b/noncore/tools/euroconv/calckeypad.cpp index f1d61c0..4d0c37f 100644 --- a/noncore/tools/euroconv/calckeypad.cpp +++ b/noncore/tools/euroconv/calckeypad.cpp @@ -1,207 +1,214 @@ /**************************************************************************** * * 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){ int i; QButton *btnButton; // 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); // set appearance of buttons for(i=0; i<10; i++){ btnButton = grpbtnDigits->find(i); btnButton->setFixedSize(30,30); } // 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); // set appearance of buttons for(i=1; i<6; i++){ btnButton = grpbtnOperators->find(i); btnButton->setFixedSize(30,30); } btnClear->setFixedSize(30,30); btnClear->setPalette(QPalette( QColor(255, 99, 71) ) ); btnDot->setFixedSize(30,30); btnPercent->setFixedSize(30,30); btnF1->setFixedSize(30,30); btnAbout->setFixedSize(30,30); // 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) +else if(iLenCurrent > 9) return; +else if(!bIsDec){ 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); } -dPreviousValue = dCurrent; -iPreviousOperator = i; - -// reset LCD for next digit -dCurrent = 0; -iLenCurrent = 1; -bIsDec = false; -dDecCurrent = 0; +if(i==5){ + // ensure we won't be able to enter more digits + iLenCurrent = 100; + iPreviousOperator = 0; + dPreviousValue = 0; +}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\n" - "Version 0.2\n\n" + "Version 0.3\n\n" "Any comment or feedback to:\n" "Eric.Santonacci@talc.fr\n"); } |