void
XSetSelectionOwner(
Display* display, /* X Display. */
Atom selection, /* What selection to own. */
Window owner, /* Window to be the owner. */
Time time) /* The current time? */
{
Tk_Window tkwin;
TkDisplay *dispPtr;
/*
* This is a gross hack because the Tk_InternAtom interface is broken.
* It expects a Tk_Window, even though it only needs a Tk_Display.
*/
tkwin = (Tk_Window) TkGetMainInfoList()->winPtr;
if (selection == Tk_InternAtom(tkwin, "CLIPBOARD")) {
/*
* Only claim and empty the clipboard if we aren't already the
* owner of the clipboard.
*/
dispPtr = TkGetMainInfoList()->winPtr->dispPtr;
if (dispPtr->clipboardActive) {
return;
}
ZeroScrap();
}
}
int
XSetSelectionOwner(
Display *display,
Atom selection,
Window owner,
Time time)
{
HWND hwnd = owner ? TkWinGetHWND(owner) : NULL;
Tk_Window tkwin;
/*
* This is a gross hack because the Tk_InternAtom interface is broken. It
* expects a Tk_Window, even though it only needs a Tk_Display.
*/
tkwin = (Tk_Window) TkGetMainInfoList()->winPtr;
if (selection == Tk_InternAtom(tkwin, "CLIPBOARD")) {
/*
* Only claim and empty the clipboard if we aren't already the owner
* of the clipboard.
*/
if (GetClipboardOwner() != hwnd) {
UpdateClipboard(hwnd);
}
}
return Success;
}
void
TkSuspendClipboard()
{
TkClipboardTarget *targetPtr;
TkClipboardBuffer *cbPtr;
TkDisplay *dispPtr;
char *buffer, *p, *endPtr, *buffPtr;
long length;
dispPtr = TkGetDisplayList();
if ((dispPtr == NULL) || !dispPtr->clipboardActive) {
return;
}
for (targetPtr = dispPtr->clipTargetPtr; targetPtr != NULL;
targetPtr = targetPtr->nextPtr) {
if (targetPtr->type == XA_STRING)
break;
}
if (targetPtr != NULL) {
Tcl_DString encodedText;
length = 0;
for (cbPtr = targetPtr->firstBufferPtr; cbPtr != NULL;
cbPtr = cbPtr->nextPtr) {
length += cbPtr->length;
}
buffer = ckalloc(length);
buffPtr = buffer;
for (cbPtr = targetPtr->firstBufferPtr; cbPtr != NULL;
cbPtr = cbPtr->nextPtr) {
for (p = cbPtr->buffer, endPtr = p + cbPtr->length;
p < endPtr; p++) {
if (*p == '\n') {
*buffPtr++ = '\r';
} else {
*buffPtr++ = *p;
}
}
}
ZeroScrap();
Tcl_UtfToExternalDString(NULL, buffer, length, &encodedText);
PutScrap(Tcl_DStringLength(&encodedText), 'TEXT',
Tcl_DStringValue(&encodedText));
Tcl_DStringFree(&encodedText);
ckfree(buffer);
}
/*
* The system now owns the scrap. We tell Tk that it has
* lost the selection so that it will look for it the next time
* it needs it. (Window list NULL if quiting.)
*/
if (TkGetMainInfoList() != NULL) {
Tk_ClearSelection((Tk_Window) TkGetMainInfoList()->winPtr,
Tk_InternAtom((Tk_Window) TkGetMainInfoList()->winPtr,
"CLIPBOARD"));
}
return;
}