1 |
dashley |
25 |
/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tk_base/tkobj.c,v 1.1.1.1 2001/06/13 05:06:19 dtashley Exp $ */
|
2 |
|
|
|
3 |
|
|
/*
|
4 |
|
|
* tkObj.c --
|
5 |
|
|
*
|
6 |
|
|
* This file contains procedures that implement the common Tk object
|
7 |
|
|
* types
|
8 |
|
|
*
|
9 |
|
|
* Copyright (c) 1997 Sun Microsystems, Inc.
|
10 |
|
|
*
|
11 |
|
|
* See the file "license.terms" for information on usage and redistribution
|
12 |
|
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
13 |
|
|
*
|
14 |
|
|
* RCS: @(#) $Id: tkobj.c,v 1.1.1.1 2001/06/13 05:06:19 dtashley Exp $
|
15 |
|
|
*/
|
16 |
|
|
|
17 |
|
|
#include "tkInt.h"
|
18 |
|
|
|
19 |
|
|
/*
|
20 |
|
|
* The following structure is the internal representation for pixel objects.
|
21 |
|
|
*/
|
22 |
|
|
|
23 |
|
|
typedef struct PixelRep {
|
24 |
|
|
double value;
|
25 |
|
|
int units;
|
26 |
|
|
Tk_Window tkwin;
|
27 |
|
|
int returnValue;
|
28 |
|
|
} PixelRep;
|
29 |
|
|
|
30 |
|
|
#define SIMPLE_PIXELREP(objPtr) \
|
31 |
|
|
((objPtr)->internalRep.twoPtrValue.ptr2 == 0)
|
32 |
|
|
|
33 |
|
|
#define SET_SIMPLEPIXEL(objPtr, intval) \
|
34 |
|
|
(objPtr)->internalRep.twoPtrValue.ptr1 = (VOID *) (intval); \
|
35 |
|
|
(objPtr)->internalRep.twoPtrValue.ptr2 = 0
|
36 |
|
|
|
37 |
|
|
#define GET_SIMPLEPIXEL(objPtr) \
|
38 |
|
|
((int) (objPtr)->internalRep.twoPtrValue.ptr1)
|
39 |
|
|
|
40 |
|
|
#define SET_COMPLEXPIXEL(objPtr, repPtr) \
|
41 |
|
|
(objPtr)->internalRep.twoPtrValue.ptr1 = 0; \
|
42 |
|
|
(objPtr)->internalRep.twoPtrValue.ptr2 = (VOID *) repPtr
|
43 |
|
|
|
44 |
|
|
#define GET_COMPLEXPIXEL(objPtr) \
|
45 |
|
|
((PixelRep *) (objPtr)->internalRep.twoPtrValue.ptr2)
|
46 |
|
|
|
47 |
|
|
|
48 |
|
|
/*
|
49 |
|
|
* The following structure is the internal representation for mm objects.
|
50 |
|
|
*/
|
51 |
|
|
|
52 |
|
|
typedef struct MMRep {
|
53 |
|
|
double value;
|
54 |
|
|
int units;
|
55 |
|
|
Tk_Window tkwin;
|
56 |
|
|
double returnValue;
|
57 |
|
|
} MMRep;
|
58 |
|
|
|
59 |
|
|
/*
|
60 |
|
|
* Prototypes for procedures defined later in this file:
|
61 |
|
|
*/
|
62 |
|
|
|
63 |
|
|
static void DupMMInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
|
64 |
|
|
Tcl_Obj *copyPtr));
|
65 |
|
|
static void DupPixelInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
|
66 |
|
|
Tcl_Obj *copyPtr));
|
67 |
|
|
static void FreeMMInternalRep _ANSI_ARGS_((Tcl_Obj *objPtr));
|
68 |
|
|
static void FreePixelInternalRep _ANSI_ARGS_((Tcl_Obj *objPtr));
|
69 |
|
|
static int SetMMFromAny _ANSI_ARGS_((Tcl_Interp *interp,
|
70 |
|
|
Tcl_Obj *objPtr));
|
71 |
|
|
static int SetPixelFromAny _ANSI_ARGS_((Tcl_Interp *interp,
|
72 |
|
|
Tcl_Obj *objPtr));
|
73 |
|
|
static int SetWindowFromAny _ANSI_ARGS_((Tcl_Interp *interp,
|
74 |
|
|
Tcl_Obj *objPtr));
|
75 |
|
|
|
76 |
|
|
/*
|
77 |
|
|
* The following structure defines the implementation of the "pixel"
|
78 |
|
|
* Tcl object, used for measuring distances. The pixel object remembers
|
79 |
|
|
* its initial display-independant settings.
|
80 |
|
|
*/
|
81 |
|
|
|
82 |
|
|
static Tcl_ObjType pixelObjType = {
|
83 |
|
|
"pixel", /* name */
|
84 |
|
|
FreePixelInternalRep, /* freeIntRepProc */
|
85 |
|
|
DupPixelInternalRep, /* dupIntRepProc */
|
86 |
|
|
NULL, /* updateStringProc */
|
87 |
|
|
SetPixelFromAny /* setFromAnyProc */
|
88 |
|
|
};
|
89 |
|
|
|
90 |
|
|
/*
|
91 |
|
|
* The following structure defines the implementation of the "pixel"
|
92 |
|
|
* Tcl object, used for measuring distances. The pixel object remembers
|
93 |
|
|
* its initial display-independant settings.
|
94 |
|
|
*/
|
95 |
|
|
|
96 |
|
|
static Tcl_ObjType mmObjType = {
|
97 |
|
|
"mm", /* name */
|
98 |
|
|
FreeMMInternalRep, /* freeIntRepProc */
|
99 |
|
|
DupMMInternalRep, /* dupIntRepProc */
|
100 |
|
|
NULL, /* updateStringProc */
|
101 |
|
|
SetMMFromAny /* setFromAnyProc */
|
102 |
|
|
};
|
103 |
|
|
|
104 |
|
|
/*
|
105 |
|
|
* The following structure defines the implementation of the "window"
|
106 |
|
|
* Tcl object.
|
107 |
|
|
*/
|
108 |
|
|
|
109 |
|
|
static Tcl_ObjType windowObjType = {
|
110 |
|
|
"window", /* name */
|
111 |
|
|
(Tcl_FreeInternalRepProc *) NULL, /* freeIntRepProc */
|
112 |
|
|
(Tcl_DupInternalRepProc *) NULL, /* dupIntRepProc */
|
113 |
|
|
NULL, /* updateStringProc */
|
114 |
|
|
SetWindowFromAny /* setFromAnyProc */
|
115 |
|
|
};
|
116 |
|
|
|
117 |
|
|
|
118 |
|
|
|
119 |
|
|
/*
|
120 |
|
|
*----------------------------------------------------------------------
|
121 |
|
|
*
|
122 |
|
|
* Tk_GetPixelsFromObj --
|
123 |
|
|
*
|
124 |
|
|
* Attempt to return a pixel value from the Tcl object "objPtr". If the
|
125 |
|
|
* object is not already a pixel value, an attempt will be made to convert
|
126 |
|
|
* it to one.
|
127 |
|
|
*
|
128 |
|
|
* Results:
|
129 |
|
|
* The return value is a standard Tcl object result. If an error occurs
|
130 |
|
|
* during conversion, an error message is left in the interpreter's
|
131 |
|
|
* result unless "interp" is NULL.
|
132 |
|
|
*
|
133 |
|
|
* Side effects:
|
134 |
|
|
* If the object is not already a pixel, the conversion will free
|
135 |
|
|
* any old internal representation.
|
136 |
|
|
*
|
137 |
|
|
*----------------------------------------------------------------------
|
138 |
|
|
*/
|
139 |
|
|
|
140 |
|
|
int
|
141 |
|
|
Tk_GetPixelsFromObj(interp, tkwin, objPtr, intPtr)
|
142 |
|
|
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
|
143 |
|
|
Tk_Window tkwin;
|
144 |
|
|
Tcl_Obj *objPtr; /* The object from which to get pixels. */
|
145 |
|
|
int *intPtr; /* Place to store resulting pixels. */
|
146 |
|
|
{
|
147 |
|
|
int result;
|
148 |
|
|
double d;
|
149 |
|
|
PixelRep *pixelPtr;
|
150 |
|
|
static double bias[] = {
|
151 |
|
|
1.0, 10.0, 25.4, 25.4 / 72.0
|
152 |
|
|
};
|
153 |
|
|
|
154 |
|
|
if (objPtr->typePtr != &pixelObjType) {
|
155 |
|
|
result = SetPixelFromAny(interp, objPtr);
|
156 |
|
|
if (result != TCL_OK) {
|
157 |
|
|
return result;
|
158 |
|
|
}
|
159 |
|
|
}
|
160 |
|
|
|
161 |
|
|
if (SIMPLE_PIXELREP(objPtr)) {
|
162 |
|
|
*intPtr = GET_SIMPLEPIXEL(objPtr);
|
163 |
|
|
} else {
|
164 |
|
|
pixelPtr = GET_COMPLEXPIXEL(objPtr);
|
165 |
|
|
if (pixelPtr->tkwin != tkwin) {
|
166 |
|
|
d = pixelPtr->value;
|
167 |
|
|
if (pixelPtr->units >= 0) {
|
168 |
|
|
d *= bias[pixelPtr->units] * WidthOfScreen(Tk_Screen(tkwin));
|
169 |
|
|
d /= WidthMMOfScreen(Tk_Screen(tkwin));
|
170 |
|
|
}
|
171 |
|
|
if (d < 0) {
|
172 |
|
|
pixelPtr->returnValue = (int) (d - 0.5);
|
173 |
|
|
} else {
|
174 |
|
|
pixelPtr->returnValue = (int) (d + 0.5);
|
175 |
|
|
}
|
176 |
|
|
pixelPtr->tkwin = tkwin;
|
177 |
|
|
}
|
178 |
|
|
*intPtr = pixelPtr->returnValue;
|
179 |
|
|
}
|
180 |
|
|
return TCL_OK;
|
181 |
|
|
}
|
182 |
|
|
|
183 |
|
|
/*
|
184 |
|
|
*----------------------------------------------------------------------
|
185 |
|
|
*
|
186 |
|
|
* FreePixelInternalRep --
|
187 |
|
|
*
|
188 |
|
|
* Deallocate the storage associated with a pixel object's internal
|
189 |
|
|
* representation.
|
190 |
|
|
*
|
191 |
|
|
* Results:
|
192 |
|
|
* None.
|
193 |
|
|
*
|
194 |
|
|
* Side effects:
|
195 |
|
|
* Frees objPtr's internal representation and sets objPtr's
|
196 |
|
|
* internalRep to NULL.
|
197 |
|
|
*
|
198 |
|
|
*----------------------------------------------------------------------
|
199 |
|
|
*/
|
200 |
|
|
|
201 |
|
|
static void
|
202 |
|
|
FreePixelInternalRep(objPtr)
|
203 |
|
|
Tcl_Obj *objPtr; /* Pixel object with internal rep to free. */
|
204 |
|
|
{
|
205 |
|
|
PixelRep *pixelPtr;
|
206 |
|
|
|
207 |
|
|
if (!SIMPLE_PIXELREP(objPtr)) {
|
208 |
|
|
pixelPtr = GET_COMPLEXPIXEL(objPtr);
|
209 |
|
|
ckfree((char *) pixelPtr);
|
210 |
|
|
}
|
211 |
|
|
SET_SIMPLEPIXEL(objPtr, 0);
|
212 |
|
|
}
|
213 |
|
|
|
214 |
|
|
/*
|
215 |
|
|
*----------------------------------------------------------------------
|
216 |
|
|
*
|
217 |
|
|
* DupPixelInternalRep --
|
218 |
|
|
*
|
219 |
|
|
* Initialize the internal representation of a pixel Tcl_Obj to a
|
220 |
|
|
* copy of the internal representation of an existing pixel object.
|
221 |
|
|
*
|
222 |
|
|
* Results:
|
223 |
|
|
* None.
|
224 |
|
|
*
|
225 |
|
|
* Side effects:
|
226 |
|
|
* copyPtr's internal rep is set to the pixel corresponding to
|
227 |
|
|
* srcPtr's internal rep.
|
228 |
|
|
*
|
229 |
|
|
*----------------------------------------------------------------------
|
230 |
|
|
*/
|
231 |
|
|
|
232 |
|
|
static void
|
233 |
|
|
DupPixelInternalRep(srcPtr, copyPtr)
|
234 |
|
|
register Tcl_Obj *srcPtr; /* Object with internal rep to copy. */
|
235 |
|
|
register Tcl_Obj *copyPtr; /* Object with internal rep to set. */
|
236 |
|
|
{
|
237 |
|
|
PixelRep *oldPtr, *newPtr;
|
238 |
|
|
|
239 |
|
|
copyPtr->typePtr = srcPtr->typePtr;
|
240 |
|
|
|
241 |
|
|
if (SIMPLE_PIXELREP(srcPtr)) {
|
242 |
|
|
SET_SIMPLEPIXEL(copyPtr, GET_SIMPLEPIXEL(srcPtr));
|
243 |
|
|
} else {
|
244 |
|
|
oldPtr = GET_COMPLEXPIXEL(srcPtr);
|
245 |
|
|
newPtr = (PixelRep *) ckalloc(sizeof(PixelRep));
|
246 |
|
|
newPtr->value = oldPtr->value;
|
247 |
|
|
newPtr->units = oldPtr->units;
|
248 |
|
|
newPtr->tkwin = oldPtr->tkwin;
|
249 |
|
|
newPtr->returnValue = oldPtr->returnValue;
|
250 |
|
|
SET_COMPLEXPIXEL(copyPtr, newPtr);
|
251 |
|
|
}
|
252 |
|
|
}
|
253 |
|
|
|
254 |
|
|
/*
|
255 |
|
|
*----------------------------------------------------------------------
|
256 |
|
|
*
|
257 |
|
|
* SetPixelFromAny --
|
258 |
|
|
*
|
259 |
|
|
* Attempt to generate a pixel internal form for the Tcl object
|
260 |
|
|
* "objPtr".
|
261 |
|
|
*
|
262 |
|
|
* Results:
|
263 |
|
|
* The return value is a standard Tcl result. If an error occurs during
|
264 |
|
|
* conversion, an error message is left in the interpreter's result
|
265 |
|
|
* unless "interp" is NULL.
|
266 |
|
|
*
|
267 |
|
|
* Side effects:
|
268 |
|
|
* If no error occurs, a pixel representation of the object is
|
269 |
|
|
* stored internally and the type of "objPtr" is set to pixel.
|
270 |
|
|
*
|
271 |
|
|
*----------------------------------------------------------------------
|
272 |
|
|
*/
|
273 |
|
|
|
274 |
|
|
static int
|
275 |
|
|
SetPixelFromAny(interp, objPtr)
|
276 |
|
|
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
|
277 |
|
|
Tcl_Obj *objPtr; /* The object to convert. */
|
278 |
|
|
{
|
279 |
|
|
Tcl_ObjType *typePtr;
|
280 |
|
|
char *string, *rest;
|
281 |
|
|
double d;
|
282 |
|
|
int i, units;
|
283 |
|
|
PixelRep *pixelPtr;
|
284 |
|
|
|
285 |
|
|
string = Tcl_GetStringFromObj(objPtr, NULL);
|
286 |
|
|
|
287 |
|
|
d = strtod(string, &rest);
|
288 |
|
|
if (rest == string) {
|
289 |
|
|
/*
|
290 |
|
|
* Must copy string before resetting the result in case a caller
|
291 |
|
|
* is trying to convert the interpreter's result to pixels.
|
292 |
|
|
*/
|
293 |
|
|
|
294 |
|
|
char buf[100];
|
295 |
|
|
|
296 |
|
|
error:
|
297 |
|
|
sprintf(buf, "bad screen distance \"%.50s\"", string);
|
298 |
|
|
Tcl_ResetResult(interp);
|
299 |
|
|
Tcl_AppendResult(interp, buf, NULL);
|
300 |
|
|
return TCL_ERROR;
|
301 |
|
|
}
|
302 |
|
|
while ((*rest != '\0') && isspace(UCHAR(*rest))) {
|
303 |
|
|
rest++;
|
304 |
|
|
}
|
305 |
|
|
switch (*rest) {
|
306 |
|
|
case '\0':
|
307 |
|
|
units = -1;
|
308 |
|
|
break;
|
309 |
|
|
|
310 |
|
|
case 'm':
|
311 |
|
|
units = 0;
|
312 |
|
|
break;
|
313 |
|
|
|
314 |
|
|
case 'c':
|
315 |
|
|
units = 1;
|
316 |
|
|
break;
|
317 |
|
|
|
318 |
|
|
case 'i':
|
319 |
|
|
units = 2;
|
320 |
|
|
break;
|
321 |
|
|
|
322 |
|
|
case 'p':
|
323 |
|
|
units = 3;
|
324 |
|
|
break;
|
325 |
|
|
|
326 |
|
|
default:
|
327 |
|
|
goto error;
|
328 |
|
|
}
|
329 |
|
|
|
330 |
|
|
/*
|
331 |
|
|
* Free the old internalRep before setting the new one.
|
332 |
|
|
*/
|
333 |
|
|
|
334 |
|
|
typePtr = objPtr->typePtr;
|
335 |
|
|
if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
|
336 |
|
|
(*typePtr->freeIntRepProc)(objPtr);
|
337 |
|
|
}
|
338 |
|
|
|
339 |
|
|
objPtr->typePtr = &pixelObjType;
|
340 |
|
|
|
341 |
|
|
i = (int) d;
|
342 |
|
|
if ((units < 0) && (i == d)) {
|
343 |
|
|
SET_SIMPLEPIXEL(objPtr, i);
|
344 |
|
|
} else {
|
345 |
|
|
pixelPtr = (PixelRep *) ckalloc(sizeof(PixelRep));
|
346 |
|
|
pixelPtr->value = d;
|
347 |
|
|
pixelPtr->units = units;
|
348 |
|
|
pixelPtr->tkwin = NULL;
|
349 |
|
|
pixelPtr->returnValue = i;
|
350 |
|
|
SET_COMPLEXPIXEL(objPtr, pixelPtr);
|
351 |
|
|
}
|
352 |
|
|
return TCL_OK;
|
353 |
|
|
}
|
354 |
|
|
|
355 |
|
|
/*
|
356 |
|
|
*----------------------------------------------------------------------
|
357 |
|
|
*
|
358 |
|
|
* Tk_GetMMFromObj --
|
359 |
|
|
*
|
360 |
|
|
* Attempt to return an mm value from the Tcl object "objPtr". If the
|
361 |
|
|
* object is not already an mm value, an attempt will be made to convert
|
362 |
|
|
* it to one.
|
363 |
|
|
*
|
364 |
|
|
* Results:
|
365 |
|
|
* The return value is a standard Tcl object result. If an error occurs
|
366 |
|
|
* during conversion, an error message is left in the interpreter's
|
367 |
|
|
* result unless "interp" is NULL.
|
368 |
|
|
*
|
369 |
|
|
* Side effects:
|
370 |
|
|
* If the object is not already a pixel, the conversion will free
|
371 |
|
|
* any old internal representation.
|
372 |
|
|
*
|
373 |
|
|
*----------------------------------------------------------------------
|
374 |
|
|
*/
|
375 |
|
|
|
376 |
|
|
int
|
377 |
|
|
Tk_GetMMFromObj(interp, tkwin, objPtr, doublePtr)
|
378 |
|
|
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
|
379 |
|
|
Tk_Window tkwin;
|
380 |
|
|
Tcl_Obj *objPtr; /* The object from which to get mms. */
|
381 |
|
|
double *doublePtr; /* Place to store resulting millimeters. */
|
382 |
|
|
{
|
383 |
|
|
int result;
|
384 |
|
|
double d;
|
385 |
|
|
MMRep *mmPtr;
|
386 |
|
|
static double bias[] = {
|
387 |
|
|
10.0, 25.4, 1.0, 25.4 / 72.0
|
388 |
|
|
};
|
389 |
|
|
|
390 |
|
|
if (objPtr->typePtr != &mmObjType) {
|
391 |
|
|
result = SetMMFromAny(interp, objPtr);
|
392 |
|
|
if (result != TCL_OK) {
|
393 |
|
|
return result;
|
394 |
|
|
}
|
395 |
|
|
}
|
396 |
|
|
|
397 |
|
|
mmPtr = (MMRep *) objPtr->internalRep.otherValuePtr;
|
398 |
|
|
if (mmPtr->tkwin != tkwin) {
|
399 |
|
|
d = mmPtr->value;
|
400 |
|
|
if (mmPtr->units == -1) {
|
401 |
|
|
d /= WidthOfScreen(Tk_Screen(tkwin));
|
402 |
|
|
d *= WidthMMOfScreen(Tk_Screen(tkwin));
|
403 |
|
|
} else {
|
404 |
|
|
d *= bias[mmPtr->units];
|
405 |
|
|
}
|
406 |
|
|
mmPtr->tkwin = tkwin;
|
407 |
|
|
mmPtr->returnValue = d;
|
408 |
|
|
}
|
409 |
|
|
*doublePtr = mmPtr->returnValue;
|
410 |
|
|
|
411 |
|
|
return TCL_OK;
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
/*
|
415 |
|
|
*----------------------------------------------------------------------
|
416 |
|
|
*
|
417 |
|
|
* FreeMMInternalRep --
|
418 |
|
|
*
|
419 |
|
|
* Deallocate the storage associated with a mm object's internal
|
420 |
|
|
* representation.
|
421 |
|
|
*
|
422 |
|
|
* Results:
|
423 |
|
|
* None.
|
424 |
|
|
*
|
425 |
|
|
* Side effects:
|
426 |
|
|
* Frees objPtr's internal representation and sets objPtr's
|
427 |
|
|
* internalRep to NULL.
|
428 |
|
|
*
|
429 |
|
|
*----------------------------------------------------------------------
|
430 |
|
|
*/
|
431 |
|
|
|
432 |
|
|
static void
|
433 |
|
|
FreeMMInternalRep(objPtr)
|
434 |
|
|
Tcl_Obj *objPtr; /* MM object with internal rep to free. */
|
435 |
|
|
{
|
436 |
|
|
ckfree((char *) objPtr->internalRep.otherValuePtr);
|
437 |
|
|
objPtr->internalRep.otherValuePtr = NULL;
|
438 |
|
|
}
|
439 |
|
|
|
440 |
|
|
/*
|
441 |
|
|
*----------------------------------------------------------------------
|
442 |
|
|
*
|
443 |
|
|
* DupMMInternalRep --
|
444 |
|
|
*
|
445 |
|
|
* Initialize the internal representation of a pixel Tcl_Obj to a
|
446 |
|
|
* copy of the internal representation of an existing pixel object.
|
447 |
|
|
*
|
448 |
|
|
* Results:
|
449 |
|
|
* None.
|
450 |
|
|
*
|
451 |
|
|
* Side effects:
|
452 |
|
|
* copyPtr's internal rep is set to the pixel corresponding to
|
453 |
|
|
* srcPtr's internal rep.
|
454 |
|
|
*
|
455 |
|
|
*----------------------------------------------------------------------
|
456 |
|
|
*/
|
457 |
|
|
|
458 |
|
|
static void
|
459 |
|
|
DupMMInternalRep(srcPtr, copyPtr)
|
460 |
|
|
register Tcl_Obj *srcPtr; /* Object with internal rep to copy. */
|
461 |
|
|
register Tcl_Obj *copyPtr; /* Object with internal rep to set. */
|
462 |
|
|
{
|
463 |
|
|
MMRep *oldPtr, *newPtr;
|
464 |
|
|
|
465 |
|
|
copyPtr->typePtr = srcPtr->typePtr;
|
466 |
|
|
oldPtr = (MMRep *) srcPtr->internalRep.otherValuePtr;
|
467 |
|
|
newPtr = (MMRep *) ckalloc(sizeof(MMRep));
|
468 |
|
|
newPtr->value = oldPtr->value;
|
469 |
|
|
newPtr->units = oldPtr->units;
|
470 |
|
|
newPtr->tkwin = oldPtr->tkwin;
|
471 |
|
|
newPtr->returnValue = oldPtr->returnValue;
|
472 |
|
|
copyPtr->internalRep.otherValuePtr = (VOID *) newPtr;
|
473 |
|
|
}
|
474 |
|
|
|
475 |
|
|
/*
|
476 |
|
|
*----------------------------------------------------------------------
|
477 |
|
|
*
|
478 |
|
|
* SetMMFromAny --
|
479 |
|
|
*
|
480 |
|
|
* Attempt to generate a mm internal form for the Tcl object
|
481 |
|
|
* "objPtr".
|
482 |
|
|
*
|
483 |
|
|
* Results:
|
484 |
|
|
* The return value is a standard Tcl result. If an error occurs during
|
485 |
|
|
* conversion, an error message is left in the interpreter's result
|
486 |
|
|
* unless "interp" is NULL.
|
487 |
|
|
*
|
488 |
|
|
* Side effects:
|
489 |
|
|
* If no error occurs, a mm representation of the object is
|
490 |
|
|
* stored internally and the type of "objPtr" is set to mm.
|
491 |
|
|
*
|
492 |
|
|
*----------------------------------------------------------------------
|
493 |
|
|
*/
|
494 |
|
|
|
495 |
|
|
static int
|
496 |
|
|
SetMMFromAny(interp, objPtr)
|
497 |
|
|
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
|
498 |
|
|
Tcl_Obj *objPtr; /* The object to convert. */
|
499 |
|
|
{
|
500 |
|
|
Tcl_ObjType *typePtr;
|
501 |
|
|
char *string, *rest;
|
502 |
|
|
double d;
|
503 |
|
|
int units;
|
504 |
|
|
MMRep *mmPtr;
|
505 |
|
|
|
506 |
|
|
string = Tcl_GetStringFromObj(objPtr, NULL);
|
507 |
|
|
|
508 |
|
|
d = strtod(string, &rest);
|
509 |
|
|
if (rest == string) {
|
510 |
|
|
/*
|
511 |
|
|
* Must copy string before resetting the result in case a caller
|
512 |
|
|
* is trying to convert the interpreter's result to mms.
|
513 |
|
|
*/
|
514 |
|
|
|
515 |
|
|
error:
|
516 |
|
|
Tcl_AppendResult(interp, "bad screen distance \"", string,
|
517 |
|
|
"\"", (char *) NULL);
|
518 |
|
|
return TCL_ERROR;
|
519 |
|
|
}
|
520 |
|
|
while ((*rest != '\0') && isspace(UCHAR(*rest))) {
|
521 |
|
|
rest++;
|
522 |
|
|
}
|
523 |
|
|
switch (*rest) {
|
524 |
|
|
case '\0':
|
525 |
|
|
units = -1;
|
526 |
|
|
break;
|
527 |
|
|
|
528 |
|
|
case 'c':
|
529 |
|
|
units = 0;
|
530 |
|
|
break;
|
531 |
|
|
|
532 |
|
|
case 'i':
|
533 |
|
|
units = 1;
|
534 |
|
|
break;
|
535 |
|
|
|
536 |
|
|
case 'm':
|
537 |
|
|
units = 2;
|
538 |
|
|
break;
|
539 |
|
|
|
540 |
|
|
case 'p':
|
541 |
|
|
units = 3;
|
542 |
|
|
break;
|
543 |
|
|
|
544 |
|
|
default:
|
545 |
|
|
goto error;
|
546 |
|
|
}
|
547 |
|
|
|
548 |
|
|
/*
|
549 |
|
|
* Free the old internalRep before setting the new one.
|
550 |
|
|
*/
|
551 |
|
|
|
552 |
|
|
typePtr = objPtr->typePtr;
|
553 |
|
|
if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
|
554 |
|
|
(*typePtr->freeIntRepProc)(objPtr);
|
555 |
|
|
}
|
556 |
|
|
|
557 |
|
|
objPtr->typePtr = &mmObjType;
|
558 |
|
|
|
559 |
|
|
mmPtr = (MMRep *) ckalloc(sizeof(MMRep));
|
560 |
|
|
mmPtr->value = d;
|
561 |
|
|
mmPtr->units = units;
|
562 |
|
|
mmPtr->tkwin = NULL;
|
563 |
|
|
mmPtr->returnValue = d;
|
564 |
|
|
objPtr->internalRep.otherValuePtr = (VOID *) mmPtr;
|
565 |
|
|
return TCL_OK;
|
566 |
|
|
}
|
567 |
|
|
|
568 |
|
|
/*
|
569 |
|
|
*----------------------------------------------------------------------
|
570 |
|
|
*
|
571 |
|
|
* TkGetWindowFromObj --
|
572 |
|
|
*
|
573 |
|
|
* Attempt to return a Tk_Window from the Tcl object "objPtr". If the
|
574 |
|
|
* object is not already a Tk_Window, an attempt will be made to convert
|
575 |
|
|
* it to one.
|
576 |
|
|
*
|
577 |
|
|
* Results:
|
578 |
|
|
* The return value is a standard Tcl object result. If an error occurs
|
579 |
|
|
* during conversion, an error message is left in the interpreter's
|
580 |
|
|
* result unless "interp" is NULL.
|
581 |
|
|
*
|
582 |
|
|
* Side effects:
|
583 |
|
|
* If the object is not already a Tk_Window, the conversion will free
|
584 |
|
|
* any old internal representation.
|
585 |
|
|
*
|
586 |
|
|
*----------------------------------------------------------------------
|
587 |
|
|
*/
|
588 |
|
|
|
589 |
|
|
int
|
590 |
|
|
TkGetWindowFromObj(interp, tkwin, objPtr, windowPtr)
|
591 |
|
|
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
|
592 |
|
|
Tk_Window tkwin; /* A token to get the main window from. */
|
593 |
|
|
register Tcl_Obj *objPtr; /* The object from which to get boolean. */
|
594 |
|
|
Tk_Window *windowPtr; /* Place to store resulting window. */
|
595 |
|
|
{
|
596 |
|
|
register int result;
|
597 |
|
|
Tk_Window lastWindow;
|
598 |
|
|
|
599 |
|
|
result = SetWindowFromAny(interp, objPtr);
|
600 |
|
|
if (result != TCL_OK) {
|
601 |
|
|
return result;
|
602 |
|
|
}
|
603 |
|
|
|
604 |
|
|
lastWindow = (Tk_Window) objPtr->internalRep.twoPtrValue.ptr1;
|
605 |
|
|
if (tkwin != lastWindow) {
|
606 |
|
|
Tk_Window foundWindow = Tk_NameToWindow(interp,
|
607 |
|
|
Tcl_GetStringFromObj(objPtr, NULL), tkwin);
|
608 |
|
|
|
609 |
|
|
if (foundWindow == NULL) {
|
610 |
|
|
return TCL_ERROR;
|
611 |
|
|
}
|
612 |
|
|
objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) tkwin;
|
613 |
|
|
objPtr->internalRep.twoPtrValue.ptr2 = (VOID *) foundWindow;
|
614 |
|
|
}
|
615 |
|
|
*windowPtr = (Tk_Window) objPtr->internalRep.twoPtrValue.ptr2;
|
616 |
|
|
|
617 |
|
|
return result;
|
618 |
|
|
}
|
619 |
|
|
|
620 |
|
|
/*
|
621 |
|
|
*----------------------------------------------------------------------
|
622 |
|
|
*
|
623 |
|
|
* SetWindowFromAny --
|
624 |
|
|
*
|
625 |
|
|
* Attempt to generate a Tk_Window internal form for the Tcl object
|
626 |
|
|
* "objPtr".
|
627 |
|
|
*
|
628 |
|
|
* Results:
|
629 |
|
|
* The return value is a standard Tcl result. If an error occurs during
|
630 |
|
|
* conversion, an error message is left in the interpreter's result
|
631 |
|
|
* unless "interp" is NULL.
|
632 |
|
|
*
|
633 |
|
|
* Side effects:
|
634 |
|
|
* If no error occurs, a standard window value is stored as "objPtr"s
|
635 |
|
|
* internal representation and the type of "objPtr" is set to Tk_Window.
|
636 |
|
|
*
|
637 |
|
|
*----------------------------------------------------------------------
|
638 |
|
|
*/
|
639 |
|
|
|
640 |
|
|
static int
|
641 |
|
|
SetWindowFromAny(interp, objPtr)
|
642 |
|
|
Tcl_Interp *interp; /* Used for error reporting if not NULL. */
|
643 |
|
|
register Tcl_Obj *objPtr; /* The object to convert. */
|
644 |
|
|
{
|
645 |
|
|
Tcl_ObjType *typePtr;
|
646 |
|
|
|
647 |
|
|
/*
|
648 |
|
|
* Free the old internalRep before setting the new one.
|
649 |
|
|
*/
|
650 |
|
|
|
651 |
|
|
Tcl_GetStringFromObj(objPtr, NULL);
|
652 |
|
|
typePtr = objPtr->typePtr;
|
653 |
|
|
if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
|
654 |
|
|
(*typePtr->freeIntRepProc)(objPtr);
|
655 |
|
|
}
|
656 |
|
|
objPtr->typePtr = &windowObjType;
|
657 |
|
|
objPtr->internalRep.twoPtrValue.ptr1 = NULL;
|
658 |
|
|
objPtr->internalRep.twoPtrValue.ptr2 = NULL;
|
659 |
|
|
|
660 |
|
|
return TCL_OK;
|
661 |
|
|
}
|
662 |
|
|
|
663 |
|
|
|
664 |
|
|
/* $History: tkObj.c $
|
665 |
|
|
*
|
666 |
|
|
* ***************** Version 1 *****************
|
667 |
|
|
* User: Dtashley Date: 1/02/01 Time: 2:56a
|
668 |
|
|
* Created in $/IjuScripter, IjuConsole/Source/Tk Base
|
669 |
|
|
* Initial check-in.
|
670 |
|
|
*/
|
671 |
|
|
|
672 |
|
|
/* End of TKOBJ.C */ |