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Annotation of Examples/DatabaseKit/Formatter/DateTFCell.m, revision 1.1

1.1     ! root        1: 
        !             2: /* Generated by Interface Builder */
        !             3: 
        !             4: #import "DateTFCell.h"
        !             5: #import <appkit/appkit.h>
        !             6: 
        !             7: @implementation DateTFCell
        !             8: 
        !             9: - select:(const NXRect *)aRect inView:controlView editor:textObj delegate:anObject start:(int)selStart length:(int)selLength
        !            10: {
        !            11:        /* do what the superclass would do */
        !            12:        [super select:aRect inView:controlView editor:textObj delegate:anObject start:selStart length:selLength];
        !            13:  
        !            14:        /* get the current text filter function */
        !            15:        oldTextFilter = [textObj textFilter];
        !            16:        
        !            17:        /* set the filter func to be the custom function for DateTextField */
        !            18:        [textObj setTextFilter:(NXTextFilterFunc)dateFilter];
        !            19:        return self;
        !            20: }
        !            21: 
        !            22: - edit:(const NXRect *)aRect inView:controlView editor:textObj delegate:anObject event:(NXEvent *)theEvent
        !            23: {
        !            24:        /* do what the superclass would do */
        !            25:        [super edit:aRect inView:controlView editor:textObj delegate:anObject event:theEvent];
        !            26:  
        !            27:        /* get the current text filter function */
        !            28:        oldTextFilter = [textObj textFilter];
        !            29:        
        !            30:        /* set the filter func to be the custom function for DateTextField */
        !            31:        [textObj setTextFilter:(NXTextFilterFunc)dateFilter];
        !            32:        return self;
        !            33: }
        !            34: 
        !            35: - endEditing:anObject
        !            36: {
        !            37:        /* restore the original text filter function */
        !            38:        [anObject setTextFilter:(NXTextFilterFunc)oldTextFilter];
        !            39:        
        !            40:        /* do whatever the superclass would do */
        !            41:        [super endEditing:anObject];
        !            42:        return self;
        !            43: }
        !            44: 
        !            45: char *dateFilter(id textObj, char *inputText, int *inputLength, int position)
        !            46: {
        !            47:        char temp[] = "";
        !            48:        
        !            49:        /* The form of the date is MM/DD/YYYY.  So find a '/' in position 2 and 
        !            50:         * position 5.  All other characters must be numbers but only 10
        !            51:         * characters allowed 
        !            52:         */
        !            53:        if ((position == 2) || (position == 5)) {
        !            54:                if (*inputText != '/') {
        !            55:                        *inputLength = 0;
        !            56:                        return (temp);
        !            57:                } else {
        !            58:                        return (inputText);
        !            59:                }
        !            60:        } else if (position >= 10) {
        !            61:                *inputLength = 0;
        !            62:                return (temp);
        !            63:        } else if ((*inputText >= '0') && (*inputText <= '9')) {
        !            64:                return (inputText);
        !            65:        } else {
        !            66:                *inputLength = 0;
        !            67:                return (temp);
        !            68:        }
        !            69: }
        !            70: 
        !            71: @end

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