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Calculator.h
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1995-06-12
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//
// Calculator.h
// Copyright (c) 1990,1991,1992 by Jiro Nakamura
// All rights reserved
//
// Maintains a simple 4-function + others calculator in Objective-C
// Doesn't handle algebraic notation or simple ordering.
//
// RCS Information
// Revision Number-> $Revision: 1.8 $
// Last Revised-> $Date: 92/02/02 18:24:19 $
//
#import <appkit/Panel.h>
#import <appkit/Text.h>
@interface Calculator: Panel
{
double x, // Current (displayed) number
y, // Previous (stored) number
m; // Memory number
BOOL x_hasDecimal,
x_isNew,
calcDidInit;
int displayMode;
int currentOperation;
id display;
id memoryDisplay;
id operationDisplay;
id scrollDisplay;
Text *scrollText;
id invisibleEnterKey;
id hexadecimalKeyMatrix;
id decimalKeyMatrix;
id decimalPointKey;
}
- key_clear:sender;
- key_divide:sender;
- key_number:sender;
- key_log:sender;
- key_squareRoot:sender;
- key_memory:sender;
- key_factorial:sender;
- key_multiply:sender;
- key_add:sender;
- key_subtract:sender;
- key_enter:sender;
- key_allClear:sender;
- key_power:sender;
- key_negate:sender;
- key_logicalOr: sender;
- key_logicalAnd: sender;
- key_logicalEor: sender;
- key_baseChanged: sender;
- setDisplay;
- clearDisplay;
- errorDisplay;
- errorDisplay: (char *) error;
- (double) getDisplay;
- updateMemoryMarker;
- updateOperationMarker;
- processPrevious;
// Delegate stuff to ensure proper miniaturization behaviour
- windowWillMiniaturize: sender toMiniwindow: mini;
- windowDidUpdate: sender;
- windowDidDeminiaturize: sender;
- setScrollOperation: (char *) op andNumber: (double) val;
// From CalculatorLab/MinusPanel.h
- (BOOL)commandKey:(NXEvent *)theEvent;
@end