Annotation of Examples/EnterpriseObjects/SQLExecutor/Controller.m, revision 1.1

1.1     ! root        1: /* Controller.m:
        !             2:  * You may freely copy, distribute, and reuse the code in this example.
        !             3:  * NeXT disclaims any warranty of any kind, expressed or  implied, as to its
        !             4:  * fitness for any particular use.
        !             5:  *
        !             6:  * Controller is providing the high level interface to the main menu commands
        !             7:  * like open, close, evaluate, and clear.
        !             8:  *
        !             9:  */
        !            10:  
        !            11: #import<foundation/NSString.h>
        !            12: #import <foundation/NSException.h>
        !            13: 
        !            14: #import "Controller.h"
        !            15: #import "Evaluator.h"
        !            16: 
        !            17: void MyTopLevelErrorHandler(NXHandler *errorState);
        !            18: 
        !            19: @implementation Controller
        !            20: 
        !            21: #define DEFAULT_LIBRARY "Library/Models"
        !            22: 
        !            23: - appDidInit:sender
        !            24: {
        !            25:        NXSetTopLevelErrorHandler(MyTopLevelErrorHandler);
        !            26: 
        !            27:        [self open:sender];
        !            28:        return self;
        !            29: }
        !            30: 
        !            31: void MyTopLevelErrorHandler(NXHandler *errorState)
        !            32: {
        !            33:        if (errorState->code >= NSExceptionBase &&
        !            34:           errorState->code <= NSLastException) {
        !            35:           NSException *exception = (id) errorState->data1;
        !            36: 
        !            37:         NSLog(@"%@: %@\n", [exception exceptionName], [exception exceptionReason]);
        !            38:            }
        !            39: }
        !            40: 
        !            41: 
        !            42: - open:sender
        !            43: {
        !            44:     char **files;
        !            45:     char *path;
        !            46:     const char *directory;
        !            47:     const char *const types[] = { "eomodel", 0 };
        !            48:     id openPanel;
        !            49: 
        !            50:     openPanel = [OpenPanel new];
        !            51:     [openPanel allowMultipleFiles:YES];
        !            52:    
        !            53:        path = malloc((MAXPATHLEN +1)*sizeof(char));
        !            54:     sprintf(path, "%s/%s", getenv("HOME"), DEFAULT_LIBRARY);
        !            55:     if ([openPanel runModalForDirectory:path file:NULL types:types])
        !            56:        if ((files = (char **) [openPanel filenames]) != NULL)
        !            57:        {
        !            58:            directory = [openPanel directory];
        !            59:            for (; *files; ++files)
        !            60:            {
        !            61:                sprintf(path, "%s/%s", directory, *files);
        !            62:                [self openFileNamed:path];
        !            63:            }
        !            64:        }
        !            65:        free(path);
        !            66:     return self;
        !            67: }
        !            68: 
        !            69: - openFileNamed:(const char *)filename
        !            70: {
        !            71:     return [[Evaluator alloc] initWithModelFile:
        !            72:                                [[NSString alloc]initWithCString:filename]];
        !            73: }
        !            74: 
        !            75: - evaluate:sender
        !            76: {
        !            77:     [[[NXApp mainWindow] delegate] evaluate:sender];
        !            78:     return self;
        !            79: }
        !            80: 
        !            81: - clear:sender
        !            82: {
        !            83:     [[[NXApp mainWindow] delegate] clear:sender];
        !            84:     return self;
        !            85: }
        !            86: 
        !            87: 
        !            88: - close:sender
        !            89: {
        !            90:     [[[NXApp mainWindow] delegate] close:sender];
        !            91:     return self;
        !            92: }
        !            93: 
        !            94: @end

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