1 files changed, 135 insertions, 0 deletions

diff --git a/noncore/tools/calculator/calculatorimpl.h b/noncore/tools/calculator/calculatorimpl.h
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+++ b/noncore/tools/calculator/calculatorimpl.h
@@ -0,0 +1,135 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+#ifndef CALCULATORIMPL_H
+#define CALCULATORIMPL_H
+
+
+#include <qlcdnumber.h>
+#include "calculator.h"
+#include <qpushbutton.h>
+#include <qbuttongroup.h>
+#include <qvaluestack.h>
+
+// mode x functions
+enum Operation {
+     oNop,
+     oOpenBrace,
+     oCloseBrace,
+     oSum,
+     oPoint,
+     oAdd,
+     oSub,
+     oDiv,
+     oMult,
+
+// mode 0 functions
+     oSin,
+     oCos,
+     oTan,
+     oDivX,
+     oPercent,
+     oXsquared,
+     oRoot,
+     oLog,
+     oLn,
+     oChSign
+};
+
+// states
+#define sStart 0
+#define sNewNumber 1
+#define sError 2
+
+struct Op
+{
+    Op() { number = 0; operation = oNop; }
+    Op( double num, Operation op ) 
+    { number = num; operation = op; }
+    double number;
+    Operation operation;
+};
+
+class QLabel;
+class CalculatorImpl : public Calculator
+{
+    Q_OBJECT
+
+public:
+    CalculatorImpl( QWidget * parent = 0, const char * name = 0,
+                WFlags f = 0 );
+
+public slots:
+    void command_buttons(int);
+    void enterNumber(int i);
+    void std_buttons(int);
+    void std_funcs(int);
+    void do_convert(int);
+    void function_button(int);
+
+protected:
+    virtual bool eventFilter( QObject *o, QEvent *e );
+
+private:
+    void clear();
+
+    void reset_conv();
+    
+    void processStack( int op );
+
+    QValueStack<Op> operationStack;
+    int state;
+
+    double acc, num, mem;
+    int    numDecimals;
+    bool   flPoint;
+    int numOpenBraces;
+
+    void   execOp( Operation i );
+    double evalExpr( int op );
+    QLabel * memMark;
+    QString fake;
+    
+    // useful values for conversion stuff
+    int current_mode, max_mode, conversion_mode_count, last_conversion;
+
+    // make adding new modes easier for ourselves
+    static const int pre_conv_modes_count = 1;
+    static const int post_conv_modes_count = 0;
+
+    // an array of pointers to the func buttons
+    static const int func_button_count = 12;
+        // this is an abomination
+        static const int changeable_func_button_count = 10;
+    QPushButton* func_buttons[func_button_count];
+
+    QButtonGroup bgr_function, bgr_digits, bgr_std, bgr_command;
+    QStringList faces, captions;
+
+    // an array of doubles holding the conversion ratios
+    double* entry_list;
+
+    QPixmap xtopowerofy;
+    QPixmap ythrootofx;
+    QPixmap oneoverx;
+
+    void display_pixmap_faces(void);
+};
+
+#endif