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- //
- // MiscStringNEXTSTEP.m
- // Written by Don Yacktman (c) 1993 by Don Yacktman.
- // Version 1.95 All rights reserved.
- // This notice may not be removed from this source code.
- //
- // This object is included in the MiscKit by permission from the author
- // and its use is governed by the MiscKit license, found in the file
- // "LICENSE.rtf" in the MiscKit distribution. Please refer to that file
- // for a list of all applicable permissions and restrictions.
- //
-
- #import <misckit/MiscString.h>
-
- @implementation MiscString(NEXTSTEP)
-
- // This category includes methods to support various NEXTSTEP features,
- // such as InterfaceBuilder (palettes), Distributed Objects (NXTransport),
- // and object archiving.
-
- - read:(NXTypedStream *)stream
- {
- int tempLength; char *tBuf;
- [super read:stream];
-
- // find out how much space we will need
- NXReadType(stream, "i", &tempLength);
-
- // note that -allocateBuffer:fromZone: will set _length for
- // us -- it is important to not smash _length since it tracks
- // the actual size of the current buffer! (See the notes for
- // -allocateBuffer:fromZone: for more info on why no smashing.)
- [self allocateBuffer:tempLength fromZone:[self zone]]; // make sure
- // we have a buffer and it is big enough.
-
- // Get the string off the stream and into the buffer
- NXReadType(stream, "*", &tBuf);
- if (tBuf) strcpy(buffer, tBuf);
- if (!tBuf && buffer) buffer[0] = '\0'; // NULL string?
-
- // now make sure that we have the right length for the string stored.
- if (buffer) length = strlen(buffer);
- else length = 0;
-
- // clean up and blow this joint
- if (tBuf) free(tBuf);
- return self;
- }
-
- - write:(NXTypedStream *)stream
- {
- [super write:stream];
- // put the string and it's length on the stream. The length is sort
- // of redundant, but this assures that the string really is like the
- // one that was archived -- if the stored instance had an oversize
- // buffer, then read will restore an oversize buffer. Of course,
- // crud after the string won't be the same, so the new instance isn't
- // quite the same, but...
- NXWriteType(stream, "i", &_length);
- NXWriteType(stream, "*", &buffer);
- return self;
- }
-
- // NXTransport protocol implementation (next three methods):
- - encodeUsing:(id <NXEncoding>)portal
- {
- [portal encodeData:&_length ofType:"i"];
- [portal encodeData:&length ofType:"i"];
- [portal encodeData:&buffer ofType:"*"];
- return self;
- }
-
- - decodeUsing:(id <NXDecoding>)portal
- {
- int newLen;
- [self freeString];
- [portal decodeData:&newLen ofType:"i"];
- [self allocateBuffer:newLen];
- [portal decodeData:&length ofType:"i"];
- [portal decodeData:&buffer ofType:"*"];
- return self;
- }
-
- - encodeRemotelyFor:(NXConnection *)connection
- freeAfterEncoding:(BOOL *)flagp isBycopy:(BOOL)isByCopy
- {
- if (isByCopy) {
- *flagp = NO; // object will not be freed (ie, copy, not move)
- return self; //encode object (copy it)
- }
- *flagp = NO;
- // super will encode the proxy otherwise
- return [super encodeRemotelyFor:connection
- freeAfterEncoding:flagp isBycopy:isByCopy];
- }
-
- // Interface Builder support
- - (const char *)getInspectorClassName { return "MiscStringInspector"; }
- - (NXImage *)getIBImage { return [NXImage findImageNamed:"MiscStringObj"]; }
-
- @end
-