The R Project SVN R-packages

//
//  RConsoleWinCtrl.h
//  R
//
//  Created by Simon Urbanek on 10/13/07.
//  Copyright 2007 __MyCompanyName__. All rights reserved.
//

#import <Cocoa/Cocoa.h>

#import "REngine.h"
#import "History.h"

@interface RConsoleWinCtrl : NSWindowController <REPLHandler, CocoaHandler> {
    /* UI components */
    IBOutlet NSTextView *textView;
    IBOutlet NSTextField *statusText;
    
    /* underlying R engine */
    REngine *engine;
    
    /* text editing sentinels */
    unsigned committedLength; // any text before this position cannot be edited by the user
    unsigned promptPosition;  // the last prompt is positioned at this position
    unsigned outputPosition;  // any output (stdxx or consWrite) is to be place here, if -1 then the text can be appended   

    /* console input history */
    History* hist;
    
    /* console font and its size */
    float currentFontSize;
    NSFont *textFont;

    /* quaue for incoming input */
    NSMutableArray *consoleInputQueue;
    NSString *currentConsoleInput;

    /* buffer for console output */
    char *writeBuffer;
    char *writeBufferPos;
    int  writeBufferLen;
    
    /* buffor used to talk to R via ReadConsole */
    char *readConsTransBuffer; // transfer buffer returned by handleReadConsole
    int readConsTransBufferSize; // size of the above buffer

}

- (void) writeConsoleDirectly: (NSString*) txt withColor: (NSColor*) color;

@end