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-rw-r--r--Master/tlpkg/tlperl/lib/Tk/pTk/tkUndo.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/Tk/pTk/tkUndo.h b/Master/tlpkg/tlperl/lib/Tk/pTk/tkUndo.h
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index 00000000000..96a0c5bace8
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+++ b/Master/tlpkg/tlperl/lib/Tk/pTk/tkUndo.h
@@ -0,0 +1,90 @@
+/*
+ * 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.
+ *
+ * RCS: @(#) $Id: tkUndo.h,v 1.1 2002/06/21 23:09:55 hobbs Exp $
+ */
+
+#ifndef _TKUNDO
+#define _TKUNDO
+
+#ifndef _TK
+#include "tk.h"
+#endif
+
+#ifdef BUILD_tk
+# undef TCL_STORAGE_CLASS
+# define TCL_STORAGE_CLASS DLLEXPORT
+#endif
+
+/* enum definining the types used in an undo stack */
+
+typedef enum {
+ TK_UNDO_SEPARATOR, /* Marker */
+ TK_UNDO_ACTION /* Command */
+} TkUndoAtomType;
+
+/* struct defining the basic undo/redo stack element */
+
+typedef struct TkUndoAtom {
+ TkUndoAtomType type; /* The type that will trigger the
+ * required action*/
+ Tcl_Obj * apply; /* Command to apply the action that was taken */
+ Tcl_Obj * revert; /* The command to undo the action */
+ struct TkUndoAtom * next; /* Pointer to the next element in the
+ * stack */
+} TkUndoAtom;
+
+/* struct defining the basic undo/redo stack element */
+
+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 */
+
+EXTERN void TkUndoPushStack _ANSI_ARGS_((TkUndoAtom ** stack,
+ TkUndoAtom * elem));
+
+EXTERN TkUndoAtom * TkUndoPopStack _ANSI_ARGS_((TkUndoAtom ** stack));
+
+EXTERN int TkUndoInsertSeparator _ANSI_ARGS_((TkUndoAtom ** stack));
+
+EXTERN void TkUndoClearStack _ANSI_ARGS_((TkUndoAtom ** stack));
+
+/* functions working on an undo/redo stack */
+
+EXTERN TkUndoRedoStack * TkUndoInitStack _ANSI_ARGS_((Tcl_Interp * interp,
+ int maxdepth));
+
+EXTERN void TkUndoSetDepth _ANSI_ARGS_((TkUndoRedoStack * stack,
+ int maxdepth));
+
+EXTERN void TkUndoClearStacks _ANSI_ARGS_((TkUndoRedoStack * stack));
+
+EXTERN void TkUndoFreeStack _ANSI_ARGS_((TkUndoRedoStack * stack));
+
+EXTERN void TkUndoInsertUndoSeparator _ANSI_ARGS_((TkUndoRedoStack * stack));
+
+EXTERN void TkUndoPushAction _ANSI_ARGS_((TkUndoRedoStack * stack,
+ Tcl_DString * actionScript, Tcl_DString * revertScript));
+
+EXTERN int TkUndoRevert _ANSI_ARGS_((TkUndoRedoStack * stack));
+
+EXTERN int TkUndoApply _ANSI_ARGS_((TkUndoRedoStack * stack));
+
+# undef TCL_STORAGE_CLASS
+# define TCL_STORAGE_CLASS DLLIMPORT
+
+#endif /* _TKUNDO */