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Diffstat (limited to 'nx-X11/lib/src/CrGlCur.c')
| -rw-r--r-- | nx-X11/lib/src/CrGlCur.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/nx-X11/lib/src/CrGlCur.c b/nx-X11/lib/src/CrGlCur.c new file mode 100644 index 000000000..88133b7f4 --- /dev/null +++ b/nx-X11/lib/src/CrGlCur.c @@ -0,0 +1,225 @@ +/* + +Copyright 1986, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" + +#ifdef USE_DYNAMIC_XCURSOR + +#include <stdio.h> +#include <string.h> +#include <dlfcn.h> +#include "Cr.h" + +#ifdef __CYGWIN__ +#define LIBXCURSOR "cygXcursor-1.dll" +#endif + +typedef void *XModuleType; + +#ifndef LIBXCURSOR +#define LIBXCURSOR "libXcursor.so.1" +#endif + +static char libraryName[] = LIBXCURSOR; + +static XModuleType +open_library (void) +{ + char *library = libraryName; + char *dot; + XModuleType module; + for (;;) + { + module = dlopen(library, RTLD_LAZY); + if (module) + return module; + dot = strrchr (library, '.'); + if (!dot) + break; + *dot = '\0'; + } + return NULL; +} + +static void * +fetch_symbol (XModuleType module, const char *under_symbol) +{ + void *result = NULL; + const char *symbol = under_symbol + 1; + result = dlsym (module, symbol); + if (!result) + result = dlsym (module, under_symbol); + return result; +} + +typedef void (*NoticeCreateBitmapFunc) (Display *dpy, + Pixmap pid, + unsigned int width, + unsigned int height); + +typedef void (*NoticePutBitmapFunc) (Display *dpy, + Drawable draw, + XImage *image); + +typedef Cursor (*TryShapeBitmapCursorFunc) (Display *dpy, + Pixmap source, + Pixmap mask, + XColor *foreground, + XColor *background, + unsigned int x, + unsigned int y); + +typedef Cursor (*TryShapeCursorFunc) (Display *dpy, + Font source_font, + Font mask_font, + unsigned int source_char, + unsigned int mask_char, + XColor _Xconst *foreground, + XColor _Xconst *background); + +static XModuleType _XcursorModule; +static Bool _XcursorModuleTried; + +#define GetFunc(type,name,ret) {\ + static Bool been_here; \ + static type staticFunc; \ + \ + _XLockMutex (_Xglobal_lock); \ + if (!been_here) \ + { \ + been_here = True; \ + if (!_XcursorModuleTried) \ + { \ + _XcursorModuleTried = True; \ + _XcursorModule = open_library (); \ + } \ + if (_XcursorModule) \ + staticFunc = (type) fetch_symbol (_XcursorModule, "_" name); \ + } \ + ret = staticFunc; \ + _XUnlockMutex (_Xglobal_lock); \ +} + +static Cursor +_XTryShapeCursor (Display *dpy, + Font source_font, + Font mask_font, + unsigned int source_char, + unsigned int mask_char, + XColor _Xconst *foreground, + XColor _Xconst *background) +{ + TryShapeCursorFunc func; + + GetFunc (TryShapeCursorFunc, "XcursorTryShapeCursor", func); + if (func) + return (*func) (dpy, source_font, mask_font, source_char, mask_char, + foreground, background); + return None; +} + +void +_XNoticeCreateBitmap (Display *dpy, + Pixmap pid, + unsigned int width, + unsigned int height) +{ + NoticeCreateBitmapFunc func; + + GetFunc (NoticeCreateBitmapFunc, "XcursorNoticeCreateBitmap", func); + if (func) + (*func) (dpy, pid, width, height); +} + +void +_XNoticePutBitmap (Display *dpy, + Drawable draw, + XImage *image) +{ + NoticePutBitmapFunc func; + + GetFunc (NoticePutBitmapFunc, "XcursorNoticePutBitmap", func); + if (func) + (*func) (dpy, draw, image); +} + +Cursor +_XTryShapeBitmapCursor (Display *dpy, + Pixmap source, + Pixmap mask, + XColor *foreground, + XColor *background, + unsigned int x, + unsigned int y) +{ + TryShapeBitmapCursorFunc func; + + GetFunc (TryShapeBitmapCursorFunc, "XcursorTryShapeBitmapCursor", func); + if (func) + return (*func) (dpy, source, mask, foreground, background, x, y); + return None; +} +#endif + +Cursor XCreateGlyphCursor( + register Display *dpy, + Font source_font, + Font mask_font, + unsigned int source_char, + unsigned int mask_char, + XColor _Xconst *foreground, + XColor _Xconst *background) +{ + Cursor cid; + register xCreateGlyphCursorReq *req; + +#ifdef USE_DYNAMIC_XCURSOR + cid = _XTryShapeCursor (dpy, source_font, mask_font, + source_char, mask_char, foreground, background); + if (cid) + return cid; +#endif + LockDisplay(dpy); + GetReq(CreateGlyphCursor, req); + cid = req->cid = XAllocID(dpy); + req->source = source_font; + req->mask = mask_font; + req->sourceChar = source_char; + req->maskChar = mask_char; + req->foreRed = foreground->red; + req->foreGreen = foreground->green; + req->foreBlue = foreground->blue; + req->backRed = background->red; + req->backGreen = background->green; + req->backBlue = background->blue; + UnlockDisplay(dpy); + SyncHandle(); + return (cid); +} + |