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Diffstat (limited to 'tcl/generic/tkSelect.h')
| -rw-r--r-- | tcl/generic/tkSelect.h | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/tcl/generic/tkSelect.h b/tcl/generic/tkSelect.h deleted file mode 100644 index c046f6c4baa..00000000000 --- a/tcl/generic/tkSelect.h +++ /dev/null @@ -1,185 +0,0 @@ -/* - * tkSelect.h -- - * - * Declarations of types shared among the files that implement - * selection support. - * - * 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. - * - * RCS: @(#) $Id$ - */ - -#ifndef _TKSELECT -#define _TKSELECT - -/* - * When a selection is owned by a window on a given display, one of the - * following structures is present on a list of current selections in the - * display structure. The structure is used to record the current owner of - * a selection for use in later retrieval requests. There is a list of - * such structures because a display can have multiple different selections - * active at the same time. - */ - -typedef struct TkSelectionInfo { - Atom selection; /* Selection name, e.g. XA_PRIMARY. */ - Tk_Window owner; /* Current owner of this selection. */ - int serial; /* Serial number of last XSelectionSetOwner - * request made to server for this - * selection (used to filter out redundant - * SelectionClear events). */ - Time time; /* Timestamp used to acquire selection. */ - Tk_LostSelProc *clearProc; /* Procedure to call when owner loses - * selection. */ - ClientData clearData; /* Info to pass to clearProc. */ - struct TkSelectionInfo *nextPtr; - /* Next in list of current selections on - * this display. NULL means end of list */ -} TkSelectionInfo; - -/* - * One of the following structures exists for each selection handler - * created for a window by calling Tk_CreateSelHandler. The handlers - * are linked in a list rooted in the TkWindow structure. - */ - -typedef struct TkSelHandler { - Atom selection; /* Selection name, e.g. XA_PRIMARY */ - Atom target; /* Target type for selection - * conversion, such as TARGETS or - * STRING. */ - Atom format; /* Format in which selection - * info will be returned, such - * as STRING or ATOM. */ - Tk_SelectionProc *proc; /* Procedure to generate selection - * in this format. */ - ClientData clientData; /* Argument to pass to proc. */ - int size; /* Size of units returned by proc - * (8 for STRING, 32 for almost - * anything else). */ - struct TkSelHandler *nextPtr; - /* Next selection handler associated - * with same window (NULL for end of - * list). */ -} TkSelHandler; - -/* - * When the selection is being retrieved, one of the following - * structures is present on a list of pending selection retrievals. - * The structure is used to communicate between the background - * procedure that requests the selection and the foreground - * event handler that processes the events in which the selection - * is returned. There is a list of such structures so that there - * can be multiple simultaneous selection retrievals (e.g. on - * different displays). - */ - -typedef struct TkSelRetrievalInfo { - Tcl_Interp *interp; /* Interpreter for error reporting. */ - TkWindow *winPtr; /* Window used as requestor for - * selection. */ - Atom selection; /* Selection being requested. */ - Atom property; /* Property where selection will appear. */ - Atom target; /* Desired form for selection. */ - int (*proc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, - char *portion)); /* Procedure to call to handle pieces - * of selection. */ - ClientData clientData; /* Argument for proc. */ - int result; /* Initially -1. Set to a Tcl - * return value once the selection - * has been retrieved. */ - Tcl_TimerToken timeout; /* Token for current timeout procedure. */ - int idleTime; /* Number of seconds that have gone by - * without hearing anything from the - * selection owner. */ - Tcl_EncodingState encState; /* Holds intermediate state during translations - * of data that cross buffer boundaries. */ - int encFlags; /* Encoding translation state flags. */ - Tcl_DString buf; /* Buffer to hold translation data. */ - struct TkSelRetrievalInfo *nextPtr; - /* Next in list of all pending - * selection retrievals. NULL means - * end of list. */ -} TkSelRetrievalInfo; - -/* - * The clipboard contains a list of buffers of various types and formats. - * All of the buffers of a given type will be returned in sequence when the - * CLIPBOARD selection is retrieved. All buffers of a given type on the - * same clipboard must have the same format. The TkClipboardTarget structure - * is used to record the information about a chain of buffers of the same - * type. - */ - -typedef struct TkClipboardBuffer { - char *buffer; /* Null terminated data buffer. */ - long length; /* Length of string in buffer. */ - struct TkClipboardBuffer *nextPtr; /* Next in list of buffers. NULL - * means end of list . */ -} TkClipboardBuffer; - -typedef struct TkClipboardTarget { - Atom type; /* Type conversion supported. */ - Atom format; /* Representation used for data. */ - TkClipboardBuffer *firstBufferPtr; /* First in list of data buffers. */ - TkClipboardBuffer *lastBufferPtr; /* Last in list of clipboard buffers. - * Used to speed up appends. */ - struct TkClipboardTarget *nextPtr; /* Next in list of targets on - * clipboard. NULL means end of - * list. */ -} TkClipboardTarget; - -/* - * It is possible for a Tk_SelectionProc to delete the handler that it - * represents. If this happens, the code that is retrieving the selection - * needs to know about it so it doesn't use the now-defunct handler - * structure. One structure of the following form is created for each - * retrieval in progress, so that the retriever can find out if its - * handler is deleted. All of the pending retrievals (if there are more - * than one) are linked into a list. - */ - -typedef struct TkSelInProgress { - TkSelHandler *selPtr; /* Handler being executed. If this handler - * is deleted, the field is set to NULL. */ - struct TkSelInProgress *nextPtr; - /* Next higher nested search. */ -} TkSelInProgress; - -/* - * Chunk size for retrieving selection. It's defined both in - * words and in bytes; the word size is used to allocate - * buffer space that's guaranteed to be word-aligned and that - * has an extra character for the terminating NULL. - */ - -#define TK_SEL_BYTES_AT_ONCE 4000 -#define TK_SEL_WORDS_AT_ONCE 1001 - -/* - * Declarations for procedures that are used by the selection-related files - * but shouldn't be used anywhere else in Tk (or by Tk clients): - */ - -extern TkSelInProgress * - TkSelGetInProgress _ANSI_ARGS_((void)); -extern void TkSelSetInProgress _ANSI_ARGS_(( - TkSelInProgress *pendingPtr)); - -extern void TkSelClearSelection _ANSI_ARGS_((Tk_Window tkwin, - XEvent *eventPtr)); -extern int TkSelDefaultSelection _ANSI_ARGS_(( - TkSelectionInfo *infoPtr, Atom target, - char *buffer, int maxBytes, Atom *typePtr)); -extern int TkSelGetSelection _ANSI_ARGS_((Tcl_Interp *interp, - Tk_Window tkwin, Atom selection, Atom target, - Tk_GetSelProc *proc, ClientData clientData)); -#ifndef TkSelUpdateClipboard -extern void TkSelUpdateClipboard _ANSI_ARGS_((TkWindow *winPtr, - TkClipboardTarget *targetPtr)); -#endif - -#endif /* _TKSELECT */ |