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[eos/base.git] / util / src / TclTk / tk8.6.4 / generic / tkUndo.h

diff --git a/util/src/TclTk/tk8.6.4/generic/tkUndo.h b/util/src/TclTk/tk8.6.4/generic/tkUndo.h
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--- a/util/src/TclTk/tk8.6.4/generic/tkUndo.h
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-/*
- * tkUndo.h --
- *
- *     Declarations shared among the files that implement an undo stack.
- *
- * Copyright (c) 2002 Ludwig Callewaert.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#ifndef _TKUNDO
-#define _TKUNDO
-
-#ifndef _TKINT
-#include "tkInt.h"
-#endif
-
-/*
- * Enum defining the types used in an undo stack.
- */
-
-typedef enum {
-    TK_UNDO_SEPARATOR,         /* Marker */
-    TK_UNDO_ACTION             /* Command */
-} TkUndoAtomType;
-
-/*
- * Callback proc type to carry out an undo or redo action via C code. (Actions
- * can also be defined by Tcl scripts).
- */
-
-typedef int (TkUndoProc)(Tcl_Interp *interp, ClientData clientData,
-                       Tcl_Obj *objPtr);
-
-/*
- * Struct defining a single action, one or more of which may be defined (and
- * stored in a linked list) separately for each undo and redo action of an
- * undo atom.
- */
-
-typedef struct TkUndoSubAtom {
-    Tcl_Command command;       /* Tcl token used to get the current Tcl
-                                * command name which will be used to execute
-                                * apply/revert scripts. If NULL then it is
-                                * assumed the apply/revert scripts already
-                                * contain everything. */
-    TkUndoProc *funcPtr;       /* Function pointer for callback to perform
-                                * undo/redo actions. */
-    ClientData clientData;     /* Data for 'funcPtr'. */
-    Tcl_Obj *action;           /* Command to apply the action that was
-                                * taken. */
-    struct TkUndoSubAtom *next;        /* Pointer to the next element in the linked
-                                * list. */
-} TkUndoSubAtom;
-
-/*
- * Struct representing a single undo+redo atom to be placed in the stack.
- */
-
-typedef struct TkUndoAtom {
-    TkUndoAtomType type;       /* The type that will trigger the required
-                                * action. */
-    TkUndoSubAtom *apply;      /* Linked list of 'apply' actions to perform
-                                * for this operation. */
-    TkUndoSubAtom *revert;     /* Linked list of 'revert' actions to perform
-                                * for this operation. */
-    struct TkUndoAtom *next;   /* Pointer to the next element in the
-                                * stack. */
-} TkUndoAtom;
-
-/*
- * Struct defining a single undo+redo stack.
- */
-
-typedef struct TkUndoRedoStack {
-    TkUndoAtom *undoStack;     /* The undo stack. */
-    TkUndoAtom *redoStack;     /* The redo stack. */
-    Tcl_Interp *interp;                /* The interpreter in which to execute the
-                                * revert and apply scripts. */
-    int maxdepth;
-    int depth;
-} TkUndoRedoStack;
-
-/*
- * Basic functions.
- */
-
-MODULE_SCOPE void      TkUndoPushStack(TkUndoAtom **stack, TkUndoAtom *elem);
-MODULE_SCOPE TkUndoAtom *TkUndoPopStack(TkUndoAtom **stack);
-MODULE_SCOPE int       TkUndoInsertSeparator(TkUndoAtom **stack);
-MODULE_SCOPE void      TkUndoClearStack(TkUndoAtom **stack);
-
-/*
- * Functions for working on an undo/redo stack.
- */
-
-MODULE_SCOPE TkUndoRedoStack *TkUndoInitStack(Tcl_Interp *interp, int maxdepth);
-MODULE_SCOPE void      TkUndoSetDepth(TkUndoRedoStack *stack, int maxdepth);
-MODULE_SCOPE void      TkUndoClearStacks(TkUndoRedoStack *stack);
-MODULE_SCOPE void      TkUndoFreeStack(TkUndoRedoStack *stack);
-MODULE_SCOPE void      TkUndoInsertUndoSeparator(TkUndoRedoStack *stack);
-MODULE_SCOPE TkUndoSubAtom *TkUndoMakeCmdSubAtom(Tcl_Command command,
-                           Tcl_Obj *actionScript, TkUndoSubAtom *subAtomList);
-MODULE_SCOPE TkUndoSubAtom *TkUndoMakeSubAtom(TkUndoProc *funcPtr,
-                           ClientData clientData, Tcl_Obj *actionScript,
-                           TkUndoSubAtom *subAtomList);
-MODULE_SCOPE void      TkUndoPushAction(TkUndoRedoStack *stack,
-                           TkUndoSubAtom *apply, TkUndoSubAtom *revert);
-MODULE_SCOPE int       TkUndoRevert(TkUndoRedoStack *stack);
-MODULE_SCOPE int       TkUndoApply(TkUndoRedoStack *stack);
-
-#endif /* _TKUNDO */