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

1.1     ! root        1: /* ScrollViewExtras.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:  * A generic scrollview driver object to display/print text 
        !             7:  * Written by Jack Greenfield
        !             8:  *
        !             9:  */
        !            10: 
        !            11: #import        <objc/objc-runtime.h>
        !            12: #import "ScrollViewExtras.h"
        !            13: 
        !            14: @implementation ScrollView(ScrollViewExtras)
        !            15: 
        !            16: - sprintf:(const char *)format, ...
        !            17: {
        !            18:     int length;
        !            19:     static char buffer[65536];
        !            20:     va_list arguments;
        !            21: 
        !            22:     if ([window isVisible])
        !            23:     {
        !            24:        va_start(arguments, format);
        !            25:        vsprintf(buffer, format, arguments);
        !            26:        va_end(arguments);
        !            27:     
        !            28:        length = [[self docView] textLength];
        !            29:        [[self docView] setSel:length :length];
        !            30:        [[self docView] replaceSel:buffer];
        !            31:        [[self docView] scrollSelToVisible];
        !            32:     }
        !            33: 
        !            34:     return self;
        !            35: }
        !            36: 
        !            37: - vsprintf:(const char *)format arguments:(va_list)arguments
        !            38: {
        !            39:     int length;
        !            40:     static char buffer[65536];
        !            41: 
        !            42:     if ([window isVisible])
        !            43:     {
        !            44:        vsprintf(buffer, format, arguments);
        !            45:        length = [[self docView] textLength];
        !            46:        [[self docView] setSel:length :length];
        !            47:        [[self docView] replaceSel:buffer];
        !            48:        [[self docView] scrollSelToVisible];
        !            49:     }
        !            50: 
        !            51:     return self;
        !            52: }
        !            53: 
        !            54: - clear:sender
        !            55: {
        !            56:     int length;
        !            57: 
        !            58:     if ([window isVisible])
        !            59:     {
        !            60:        length = [[self docView] textLength];
        !            61:        [[self docView] setSel:0 :length];
        !            62:        [[self docView] replaceSel:""];
        !            63:        [[self docView] scrollSelToVisible];
        !            64:     }
        !            65: 
        !            66:     return self;
        !            67: }
        !            68: 
        !            69: - print:sender
        !            70: {
        !            71:     if ([window isVisible])
        !            72:        [[self docView] printPSCode:sender];
        !            73: 
        !            74:     return self;
        !            75: }
        !            76: 
        !            77: - printFrom:sender
        !            78: {
        !            79:     return [self sprintf:"%s\n", [sender stringValue]];
        !            80: }
        !            81: 
        !            82: @end

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