diff options
Diffstat (limited to 'macosx/tkMacOSXClipboard.c')
| -rw-r--r-- | macosx/tkMacOSXClipboard.c | 343 |
1 files changed, 171 insertions, 172 deletions
diff --git a/macosx/tkMacOSXClipboard.c b/macosx/tkMacOSXClipboard.c index 03f700c..b4008c6 100644 --- a/macosx/tkMacOSXClipboard.c +++ b/macosx/tkMacOSXClipboard.c @@ -1,15 +1,15 @@ /* * tkMacOSXClipboard.c -- * - * This file manages the clipboard for the Tk toolkit. + * This file manages the clipboard for the Tk toolkit. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * Copyright 2001, Apple Computer, Inc. * - * See the file "license.terms" for information on usage and redistribution - * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkMacOSXClipboard.c,v 1.7 2007/01/19 00:36:45 das Exp $ + * RCS: @(#) $Id: tkMacOSXClipboard.c,v 1.8 2007/04/13 14:51:17 dkf Exp $ */ #include "tkMacOSXInt.h" @@ -21,59 +21,58 @@ * * TkSelGetSelection -- * - * Retrieve the specified selection from another process. For - * now, only fetching XA_STRING from CLIPBOARD is supported. - * Eventually other types should be allowed. - * + * Retrieve the specified selection from another process. For now, only + * fetching XA_STRING from CLIPBOARD is supported. Eventually other types + * should be allowed. + * * Results: - * The return value is a standard Tcl return value. - * If an error occurs (such as no selection exists) - * then an error message is left in the interp's result. + * The return value is a standard Tcl return value. If an error occurs + * (such as no selection exists) then an error message is left in the + * interp's result. * * Side effects: - * None. + * None. * *---------------------------------------------------------------------- */ int TkSelGetSelection( - Tcl_Interp *interp, /* Interpreter to use for reporting - * errors. */ - Tk_Window tkwin, /* Window on whose behalf to retrieve - * the selection (determines display - * from which to retrieve). */ - Atom selection, /* Selection to retrieve. */ - Atom target, /* Desired form in which selection - * is to be returned. */ - Tk_GetSelProc *proc, /* Procedure to call to process the - * selection, once it has been retrieved. */ - ClientData clientData) /* Arbitrary value to pass to proc. */ + Tcl_Interp *interp, /* Interpreter to use for reporting errors. */ + Tk_Window tkwin, /* Window on whose behalf to retrieve the + * selection (determines display from which to + * retrieve). */ + Atom selection, /* Selection to retrieve. */ + Atom target, /* Desired form in which selection is to be + * returned. */ + Tk_GetSelProc *proc, /* Procedure to call to process the selection, + * once it has been retrieved. */ + ClientData clientData) /* Arbitrary value to pass to proc. */ { - int result; - int err; + int result, err; long length; ScrapRef scrapRef; - char * buf; + char *buf; if ((selection == Tk_InternAtom(tkwin, "CLIPBOARD")) - && (target == XA_STRING)) { - /* - * Get the scrap from the Macintosh global clipboard. - */ - - err = GetCurrentScrap(&scrapRef); - if (err != noErr) { - Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), - " GetCurrentScrap failed.", (char *) NULL); - return TCL_ERROR; - } + && (target == XA_STRING)) { + /* + * Get the scrap from the Macintosh global clipboard. + */ + + err = GetCurrentScrap(&scrapRef); + if (err != noErr) { + Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), + " GetCurrentScrap failed.", NULL); + return TCL_ERROR; + } /* * Try UNICODE first */ - err = GetScrapFlavorSize(scrapRef, kScrapFlavorTypeUnicode, &length); - if (err == noErr && length > 0) { + + err = GetScrapFlavorSize(scrapRef, kScrapFlavorTypeUnicode, &length); + if (err == noErr && length > 0) { Tcl_DString ds; char *data; @@ -98,49 +97,49 @@ TkSelGetSelection( } } - err = GetScrapFlavorSize(scrapRef, 'TEXT', &length); - if (err != noErr) { - Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), - " GetScrapFlavorSize failed.", (char *) NULL); - return TCL_ERROR; - } - if (length > 0) { - Tcl_DString encodedText; - char *data; - - buf = (char *) ckalloc(length + 1); + err = GetScrapFlavorSize(scrapRef, 'TEXT', &length); + if (err != noErr) { + Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), + " GetScrapFlavorSize failed.", NULL); + return TCL_ERROR; + } + if (length > 0) { + Tcl_DString encodedText; + char *data; + + buf = (char *) ckalloc(length + 1); buf[length] = 0; err = GetScrapFlavorData(scrapRef, 'TEXT', &length, buf); - if (err != noErr) { - Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), - " GetScrapFlavorData failed.", (char *) NULL); - return TCL_ERROR; - } - - /* - * Tcl expects '\n' not '\r' as the line break character. - */ - - for (data = buf; *data != '\0'; data++) { - if (*data == '\r') { - *data = '\n'; - } - } - - Tcl_ExternalToUtfDString(TkMacOSXCarbonEncoding, buf, length, - &encodedText); - result = (*proc)(clientData, interp, - Tcl_DStringValue(&encodedText)); - Tcl_DStringFree(&encodedText); - - ckfree(buf); - return result; - } + if (err != noErr) { + Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), + " GetScrapFlavorData failed.", (char *) NULL); + return TCL_ERROR; + } + + /* + * Tcl expects '\n' not '\r' as the line break character. + */ + + for (data = buf; *data != '\0'; data++) { + if (*data == '\r') { + *data = '\n'; + } + } + + Tcl_ExternalToUtfDString(TkMacOSXCarbonEncoding, buf, length, + &encodedText); + result = (*proc)(clientData, interp, + Tcl_DStringValue(&encodedText)); + Tcl_DStringFree(&encodedText); + + ckfree(buf); + return result; + } } - + Tcl_AppendResult(interp, Tk_GetAtomName(tkwin, selection), - " selection doesn't exist or form \"", Tk_GetAtomName(tkwin, target), - "\" not defined", (char *) NULL); + " selection doesn't exist or form \"", + Tk_GetAtomName(tkwin, target), "\" not defined", NULL); return TCL_ERROR; } @@ -149,48 +148,46 @@ TkSelGetSelection( * * TkSetSelectionOwner -- * - * This function claims ownership of the specified selection. - * If the selection is CLIPBOARD, then we empty the system - * clipboard. + * This function claims ownership of the specified selection. If the + * selection is CLIPBOARD, then we empty the system clipboard. * * Results: - * None. + * None. * * Side effects: - * None. + * None. * *---------------------------------------------------------------------- */ void XSetSelectionOwner( - Display* display, /* X Display. */ - Atom selection, /* What selection to own. */ - Window owner, /* Window to be the owner. */ - Time time) /* The current time? */ + 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. + * 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. + */ - /* - * Only claim and empty the clipboard if we aren't already the - * owner of the clipboard. - */ - - dispPtr = TkGetMainInfoList()->winPtr->dispPtr; - if (dispPtr->clipboardActive) { - return; - } - ClearCurrentScrap(); + dispPtr = TkGetMainInfoList()->winPtr->dispPtr; + if (dispPtr->clipboardActive) { + return; + } + ClearCurrentScrap(); } } @@ -199,23 +196,23 @@ XSetSelectionOwner( * * TkSelUpdateClipboard -- * - * This function is called to force the clipboard to be updated - * after new data is added. On the Mac we don't need to do - * anything. + * This function is called to force the clipboard to be updated after new + * data is added. On the Mac we don't need to do anything. * * Results: - * None. + * None. * * Side effects: - * None. + * None. * *---------------------------------------------------------------------- */ void TkSelUpdateClipboard( - TkWindow *winPtr, /* Window associated with clipboard. */ - TkClipboardTarget *targetPtr) /* Info about the content. */ + TkWindow *winPtr, /* Window associated with clipboard. */ + TkClipboardTarget *targetPtr) + /* Info about the content. */ { } @@ -224,28 +221,25 @@ TkSelUpdateClipboard( * * TkSelEventProc -- * - * This procedure is invoked whenever a selection-related - * event occurs. + * This procedure is invoked whenever a selection-related event occurs. * * Results: - * None. + * None. * * Side effects: - * Lots: depends on the type of event. + * Lots: depends on the type of event. * *-------------------------------------------------------------- */ void TkSelEventProc( - Tk_Window tkwin, /* Window for which event was - * targeted. */ - register XEvent *eventPtr) /* X event: either SelectionClear, - * SelectionRequest, or - * SelectionNotify. */ + Tk_Window tkwin, /* Window for which event was targeted. */ + register XEvent *eventPtr) /* X event: either SelectionClear, + * SelectionRequest, or SelectionNotify. */ { if (eventPtr->type == SelectionClear) { - TkSelClearSelection(tkwin, eventPtr); + TkSelClearSelection(tkwin, eventPtr); } } @@ -254,22 +248,21 @@ TkSelEventProc( * * TkSelPropProc -- * - * This procedure is invoked when property-change events - * occur on windows not known to the toolkit. This is a stub - * function under Windows. + * This procedure is invoked when property-change events occur on windows + * not known to the toolkit. This is a stub function under Windows. * * Results: - * None. + * None. * * Side effects: - * None. + * None. * *---------------------------------------------------------------------- */ void TkSelPropProc( - register XEvent *eventPtr) /* X PropertyChange event. */ + register XEvent *eventPtr) /* X PropertyChange event. */ { } @@ -278,20 +271,20 @@ TkSelPropProc( * * TkSuspendClipboard -- * - * Handle clipboard conversion as required by the suppend event. - * This function is also called on exit. + * Handle clipboard conversion as required by the suppend event. This + * function is also called on exit. * * Results: - * None. + * None. * * Side effects: - * The local scrap is moved to the global scrap. + * The local scrap is moved to the global scrap. * *---------------------------------------------------------------------- */ void -TkSuspendClipboard() +TkSuspendClipboard(void) { TkClipboardTarget *targetPtr; TkClipboardBuffer *cbPtr; @@ -302,50 +295,50 @@ TkSuspendClipboard() dispPtr = TkGetDisplayList(); if ((dispPtr == NULL) || !dispPtr->clipboardActive) { - return; + return; } for (targetPtr = dispPtr->clipTargetPtr; targetPtr != NULL; - targetPtr = targetPtr->nextPtr) { - if (targetPtr->type == XA_STRING) - break; + targetPtr = targetPtr->nextPtr) { + if (targetPtr->type == XA_STRING) { + break; + } } if (targetPtr != NULL) { - Tcl_DString encodedText; - Tcl_DString unicodedText; - - 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; - } - } - } - - ClearCurrentScrap(); - GetCurrentScrap(&scrapRef); - Tcl_UtfToExternalDString(TkMacOSXCarbonEncoding, buffer, - length, &encodedText); - PutScrapFlavor(scrapRef, 'TEXT', 0, - Tcl_DStringLength(&encodedText), - Tcl_DStringValue(&encodedText) ); - Tcl_DStringFree(&encodedText); + Tcl_DString encodedText, unicodedText; + + 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; + } + } + } + + ClearCurrentScrap(); + GetCurrentScrap(&scrapRef); + Tcl_UtfToExternalDString(TkMacOSXCarbonEncoding, buffer, length, + &encodedText); + PutScrapFlavor(scrapRef, 'TEXT', 0, Tcl_DStringLength(&encodedText), + Tcl_DStringValue(&encodedText)); + Tcl_DStringFree(&encodedText); /* - * Also put unicode data on scrap + * Also put unicode data on scrap. */ + Tcl_DStringInit(&unicodedText); Tcl_UtfToUniCharDString(buffer, length, &unicodedText); PutScrapFlavor(scrapRef, kScrapFlavorTypeUnicode, 0, @@ -353,20 +346,26 @@ TkSuspendClipboard() Tcl_DStringValue(&unicodedText)); Tcl_DStringFree(&unicodedText); - ckfree(buffer); + 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.) + * 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")); + Tk_ClearSelection((Tk_Window) TkGetMainInfoList()->winPtr, + Tk_InternAtom((Tk_Window) TkGetMainInfoList()->winPtr, + "CLIPBOARD")); } - - return; } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |