1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
/*
* tkWinCursor.c --
*
* This file contains Win32 specific cursor related routines.
*
* Copyright (c) 1995 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tkWinInt.h"
/*
* The following data structure contains the system specific data necessary to
* control Windows cursors.
*/
typedef struct {
TkCursor info; /* Generic cursor info used by tkCursor.c */
HCURSOR winCursor; /* Win32 cursor handle. */
int system; /* 1 if cursor is a system cursor, else 0. */
} TkWinCursor;
/*
* The HAND cursor is only present when WINVER >= 0x0500. If this is not
* available at runtime, it will default to the unix-style cursor.
*/
#ifndef IDC_HAND
#define IDC_HAND MAKEINTRESOURCE(32649)
#endif
#ifndef IDC_HELP
#define IDC_HELP MAKEINTRESOURCE(32651)
#endif
/*
* The table below is used to map from the name of a predefined cursor to its
* resource identifier.
*/
static struct CursorName {
const char *name;
LPCTSTR id;
} cursorNames[] = {
{"starting", IDC_APPSTARTING},
{"arrow", IDC_ARROW},
{"ibeam", IDC_IBEAM},
{"icon", IDC_ICON},
{"no", IDC_NO},
{"size", IDC_SIZEALL},
{"size_ne_sw", IDC_SIZENESW},
{"size_ns", IDC_SIZENS},
{"size_nw_se", IDC_SIZENWSE},
{"size_we", IDC_SIZEWE},
{"uparrow", IDC_UPARROW},
{"wait", IDC_WAIT},
{"crosshair", IDC_CROSS},
{"fleur", IDC_SIZEALL},
{"sb_v_double_arrow", IDC_SIZENS},
{"sb_h_double_arrow", IDC_SIZEWE},
{"center_ptr", IDC_UPARROW},
{"watch", IDC_WAIT},
{"xterm", IDC_IBEAM},
{"hand2", IDC_HAND},
{"question_arrow", IDC_HELP},
{NULL, 0}
};
/*
* The default cursor is used whenever no other cursor has been specified.
*/
#define TK_DEFAULT_CURSOR (LPCWSTR)IDC_ARROW
/*
*----------------------------------------------------------------------
*
* TkGetCursorByName --
*
* Retrieve a system cursor by name.
*
* Results:
* Returns a new cursor, or NULL on errors.
*
* Side effects:
* Allocates a new cursor.
*
*----------------------------------------------------------------------
*/
TkCursor *
TkGetCursorByName(
Tcl_Interp *interp, /* Interpreter to use for error reporting. */
Tk_Window tkwin, /* Window in which cursor will be used. */
Tk_Uid string) /* Description of cursor. See manual entry for
* details on legal syntax. */
{
struct CursorName *namePtr;
TkWinCursor *cursorPtr;
int argc;
const char **argv = NULL;
/*
* All cursor names are valid lists of one element (for
* Unix-compatibility), even unadorned system cursor names.
*/
if (Tcl_SplitList(interp, string, &argc, &argv) != TCL_OK) {
return NULL;
}
if (argc == 0) {
goto badCursorSpec;
}
cursorPtr = ckalloc(sizeof(TkWinCursor));
cursorPtr->info.cursor = (Tk_Cursor) cursorPtr;
cursorPtr->winCursor = NULL;
cursorPtr->system = 0;
if (argv[0][0] == '@') {
/*
* Check for system cursor of type @<filename>, where only the name is
* allowed. This accepts any of:
* -cursor @/winnt/cursors/globe.ani
* -cursor @C:/Winnt/cursors/E_arrow.cur
* -cursor {@C:/Program\ Files/Cursors/bart.ani}
* -cursor {{@C:/Program Files/Cursors/bart.ani}}
* -cursor [list @[file join "C:/Program Files" Cursors bart.ani]]
*/
if (Tcl_IsSafe(interp)) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"can't get cursor from a file in a safe interpreter",-1));
Tcl_SetErrorCode(interp, "TK", "SAFE", "CURSOR_FILE", NULL);
ckfree(argv);
ckfree(cursorPtr);
return NULL;
}
cursorPtr->winCursor = LoadCursorFromFileA(&(argv[0][1]));
} else {
/*
* Check for the cursor in the system cursor set.
*/
for (namePtr = cursorNames; namePtr->name != NULL; namePtr++) {
if (strcmp(namePtr->name, argv[0]) == 0) {
cursorPtr->winCursor = LoadCursorW(NULL, (LPCWSTR) namePtr->id);
break;
}
}
if (cursorPtr->winCursor == NULL) {
/*
* Hmm, it is not in the system cursor set. Check to see if it is
* one of our application resources.
*/
cursorPtr->winCursor = LoadCursorA(Tk_GetHINSTANCE(), argv[0]);
} else {
cursorPtr->system = 1;
}
}
if (cursorPtr->winCursor == NULL) {
ckfree(cursorPtr);
badCursorSpec:
ckfree(argv);
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"bad cursor spec \"%s\"", string));
Tcl_SetErrorCode(interp, "TK", "VALUE", "CURSOR", NULL);
return NULL;
}
ckfree(argv);
return (TkCursor *) cursorPtr;
}
/*
*----------------------------------------------------------------------
*
* TkCreateCursorFromData --
*
* Creates a cursor from the source and mask bits.
*
* Results:
* Returns a new cursor, or NULL on errors.
*
* Side effects:
* Allocates a new cursor.
*
*----------------------------------------------------------------------
*/
TkCursor *
TkCreateCursorFromData(
Tk_Window tkwin, /* Window in which cursor will be used. */
const char *source, /* Bitmap data for cursor shape. */
const char *mask, /* Bitmap data for cursor mask. */
int width, int height, /* Dimensions of cursor. */
int xHot, int yHot, /* Location of hot-spot in cursor. */
XColor fgColor, /* Foreground color for cursor. */
XColor bgColor) /* Background color for cursor. */
{
return NULL;
}
/*
*----------------------------------------------------------------------
*
* TkpFreeCursor --
*
* This procedure is called to release a cursor allocated by
* TkGetCursorByName.
*
* Results:
* None.
*
* Side effects:
* The cursor data structure is deallocated.
*
*----------------------------------------------------------------------
*/
void
TkpFreeCursor(
TkCursor *cursorPtr)
{
/* TkWinCursor *winCursorPtr = (TkWinCursor *) cursorPtr; */
}
/*
*----------------------------------------------------------------------
*
* TkpSetCursor --
*
* Set the global cursor. If the cursor is None, then use the default Tk
* cursor.
*
* Results:
* None.
*
* Side effects:
* Changes the mouse cursor.
*
*----------------------------------------------------------------------
*/
void
TkpSetCursor(
TkpCursor cursor)
{
HCURSOR hcursor;
TkWinCursor *winCursor = (TkWinCursor *) cursor;
if (winCursor == NULL || winCursor->winCursor == NULL) {
hcursor = LoadCursorW(NULL, TK_DEFAULT_CURSOR);
} else {
hcursor = winCursor->winCursor;
}
if (hcursor != NULL) {
SetCursor(hcursor);
}
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
|
