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Annotation of Examples/EnterpriseObjects/SHLExamples/KeyValueCoding/AppController.m, revision 1.1.1.1

1.1       root        1: /*--------------------------------------------------------------------------
                      2:  *
                      3:  *     You may freely copy, distribute, and reuse the code in this example.
                      4:  *     SHL Systemhouse disclaims any warranty of any kind, expressed or  
                      5:  *     implied, as to its fitness for any particular use.
                      6:  *
                      7:  *     AppController
                      8:  *
                      9:  *     Inherits From:          NSObject
                     10:  *
                     11:  *     Conforms To:            None
                     12:  *
                     13:  *     Declared In:            AppController.h
                     14:  *
                     15:  *------------------------------------------------------------------------*/
                     16: #import <foundation/NSString.h>
                     17: 
                     18: #import "AppController.h"
                     19: #import "ScrollViewExtensions.h"
                     20: #import "Catalog.h"
                     21: #import <ansi/ctype.h>
                     22: #include <ansi/time.h>
                     23: 
                     24: 
                     25: #define SLEEP(sleeptime) \
                     26:                do { \
                     27:                        struct timeval tv; \
                     28:                        tv.tv_sec = sleeptime; tv.tv_usec = 0; \
                     29:                    select(0, NULL, NULL, NULL, &tv); \
                     30:                } while(0)
                     31: 
                     32: 
                     33: 
                     34: 
                     35: @implementation AppController
                     36: 
                     37: /*--------------------------------------------------------------------------
                     38:  *     Application delegate methods
                     39:  *------------------------------------------------------------------------*/
                     40: - appDidInit: sender
                     41: {
                     42:        id      entity = [(EODatabaseDataSource *)[controller dataSource] entity];
                     43:        id      qualifier = [[EOQualifier allocWithZone: [self zone]]
                     44:                        initWithEntity:entity qualifierFormat:@"au_fname = \"Akiko\""];
                     45: 
                     46:        [window disableDisplay];
                     47:        startup = YES;
                     48: 
                     49:        [textDisplay setVertScrollerRequired:NO];
                     50:        [[textDisplay docView] setRetainedWhileDrawing:YES];
                     51: 
                     52:        /*----------------------------------------------------------------------
                     53:         *      turn buffering on so changes never affect database
                     54:         *--------------------------------------------------------------------*/
                     55:        [controller setSavesToDataSourceAutomatically:NO];
                     56:        [controller setSavesToObjectsAutomatically:YES];
                     57: 
                     58:        [[[(EODatabaseDataSource *)[controller dataSource] databaseChannel]
                     59:                adaptorChannel] setDebugEnabled:YES];
                     60: 
                     61:        [(EODatabaseDataSource *)[controller dataSource] setQualifier:qualifier];
                     62:        [controller fetch];
                     63: 
                     64: /*--------------------------------------------------------------------------
                     65:  *     This was included in alpha to select a single record -- apparently, the
                     66:  *     associations are smart enough now to display the first selected record.
                     67:  *
                     68:  *     [controller setSelectionIndexes: selectionArray];
                     69:  *     [[controller associations] makeObjectsPerform:
                     70:  *             @selector(selectionDidChange)];
                     71:  *     [self updateObjectView:[[controller allObjects] objectAtIndex:0]];
                     72:  *------------------------------------------------------------------------*/
                     73: 
                     74:        [[textDisplay docView] setText:""];
                     75: 
                     76:        [window reenableDisplay];
                     77:        [window display];
                     78:        [window makeKeyAndOrderFront:nil];
                     79: 
                     80:        startup = NO;
                     81:        return self;
                     82: }
                     83: 
                     84: 
                     85: /*--------------------------------------------------------------------------
                     86:  *     Printing Trace Information
                     87:  *------------------------------------------------------------------------*/
                     88: - console: (NSArray *) argArray
                     89: {
                     90:        BOOL    flag;
                     91: 
                     92:        if (startup == YES) return self;
                     93: 
                     94:        [[argArray objectAtIndex:1] getValue: &flag];
                     95:        if ([[traceSetting cellAt:(int)flag:0] state] == NO)
                     96:                return self;
                     97: 
                     98:        [console sprintf: "%s", [[argArray objectAtIndex:0] cString]];
                     99: 
                    100:        return self;
                    101: }
                    102: 
                    103: 
                    104: - display: (NSArray *) argArray
                    105: {
                    106:        BOOL    flag;
                    107: 
                    108:        if (startup == YES) return self;
                    109: 
                    110:        [[argArray objectAtIndex:1] getValue: &flag];
                    111:        if ([[traceSetting cellAt:(int)flag:0] state] == NO)
                    112:                return self;
                    113: 
                    114:        [[textDisplay docView] setText: [[argArray objectAtIndex:0] cString]];
                    115: 
                    116:        NXPing();
                    117:        if ([traceDelay intValue])
                    118:                SLEEP([traceDelay intValue]);
                    119: 
                    120: 
                    121:        [[textDisplay docView] setText: ""];
                    122: 
                    123:        return self;
                    124: }
                    125: 
                    126: 
                    127: /*--------------------------------------------------------------------------
                    128:  *     Update object view
                    129:  *------------------------------------------------------------------------*/
                    130: - updateObjectView: newObject
                    131: {
                    132:        BOOL temp = startup;
                    133: 
                    134:        startup = YES;
                    135:        [objectName setStringValue: [[newObject authorName] cString]];
                    136:        [objectPrice setStringValue:
                    137:                        [[(NSNumber *)[newObject price] description] cString]];
                    138:        [objectTitle setStringValue: [[newObject volumeTitle] cString]];
                    139: 
                    140:        startup = temp;
                    141:        return self;
                    142: }
                    143: 
                    144: @end

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