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Diffstat (limited to 'libXt/src/Pointer.c')
-rw-r--r-- | libXt/src/Pointer.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/libXt/src/Pointer.c b/libXt/src/Pointer.c new file mode 100644 index 000000000..bbcb13371 --- /dev/null +++ b/libXt/src/Pointer.c @@ -0,0 +1,115 @@ +/* $Xorg: Pointer.c,v 1.4 2001/02/09 02:03:56 xorgcvs Exp $ */ + +/******************************************************** + +Copyright 1988 by Hewlett-Packard Company +Copyright 1987, 1988, 1989 by Digital Equipment Corporation, Maynard + +Permission to use, copy, modify, and distribute this software +and its documentation for any purpose and without fee is hereby +granted, provided that the above copyright notice appear in all +copies and that both that copyright notice and this permission +notice appear in supporting documentation, and that the names of +Hewlett-Packard or Digital not be used in advertising or +publicity pertaining to distribution of the software without specific, +written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +********************************************************/ + +/* + +Copyright 1987, 1988, 1989, 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 "IntrinsicI.h" +#include "PassivGraI.h" + + +#define AllButtonsMask (Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask) + +Widget _XtProcessPointerEvent( + XButtonEvent *event, + Widget widget, + XtPerDisplayInput pdi) +{ + XtDevice device = &pdi->pointer; + XtServerGrabPtr newGrab = NULL, devGrab = &device->grab; + Widget dspWidget = NULL; + Boolean deactivateGrab = FALSE; + + switch (event->type) + { + case ButtonPress: + { + if (!IsServerGrab(device->grabType)) + { + Cardinal i; + + for (i = pdi->traceDepth; + i > 0 && !newGrab; + i--) + newGrab = _XtCheckServerGrabsOnWidget((XEvent*)event, + pdi->trace[i-1], + POINTER); + } + if (newGrab) + { + /* Activate the grab */ + device->grab = *newGrab; + device->grabType = XtPassiveServerGrab; + } + } + break; + + case ButtonRelease: + { + if ((device->grabType == XtPassiveServerGrab) && + !(event->state & ~(Button1Mask << (event->button - 1)) & + AllButtonsMask)) + deactivateGrab = TRUE; + } + break; + } + + if (IsServerGrab(device->grabType) && !(devGrab)->ownerEvents) + dspWidget = (devGrab)->widget; + else + dspWidget = widget; + + if (deactivateGrab) + device->grabType = XtNoServerGrab; + + return dspWidget; +} |