1 files changed, 79 insertions, 0 deletions
diff --git a/blt/src/bltSwitch.h b/blt/src/bltSwitch.h
new file mode 100644
index 00000000000..b53b1ab0813
--- /dev/null
+++ b/blt/src/bltSwitch.h
@@ -0,0 +1,79 @@
+#ifdef offsetof
+#define Blt_Offset(type, field) ((int) offsetof(type, field))
+#else
+#define Blt_Offset(type, field) ((int) ((char *) &((type *) 0)->field))
+#endif
+
+typedef int (Blt_SwitchParseProc) _ANSI_ARGS_((ClientData clientData,
+	Tcl_Interp *interp, char *switchName, char *value, char *record, 
+	int offset));
+
+typedef void (Blt_SwitchFreeProc) _ANSI_ARGS_((char *ptr));
+
+typedef struct {
+    Blt_SwitchParseProc *parseProc;	/* Procedure to parse a switch value
+					 * and store it in its converted 
+					 * form in the data record. */
+    Blt_SwitchFreeProc *freeProc;	/* Procedure to free a switch. */
+    ClientData clientData;		/* Arbitrary one-word value
+					 * used by switch parser,
+					 * passed to parseProc. */
+} Blt_SwitchCustom;
+
+/*
+ * Type values for Blt_SwitchSpec structures.  See the user
+ * documentation for details.
+ */
+typedef enum {
+    BLT_SWITCH_BOOLEAN, BLT_SWITCH_INT, BLT_SWITCH_INT_POSITIVE,
+    BLT_SWITCH_INT_NONNEGATIVE, BLT_SWITCH_DOUBLE, BLT_SWITCH_STRING, 
+    BLT_SWITCH_LIST, BLT_SWITCH_FLAG, BLT_SWITCH_VALUE, BLT_SWITCH_CUSTOM, 
+    BLT_SWITCH_END
+} Blt_SwitchTypes;
+
+typedef struct {
+    Blt_SwitchTypes type;	/* Type of option, such as BLT_SWITCH_COLOR;
+				 * see definitions below.  Last option in
+				 * table must have type BLT_SWITCH_END. */
+    char *switchName;		/* Switch used to specify option in argv.
+				 * NULL means this spec is part of a group. */
+    int offset;			/* Where in widget record to store value;
+				 * use Blt_Offset macro to generate values
+				 * for this. */
+    int flags;			/* Any combination of the values defined
+				 * below. */
+    Blt_SwitchCustom *customPtr; /* If type is BLT_SWITCH_CUSTOM then this is
+				 * a pointer to info about how to parse and
+				 * print the option.  Otherwise it is
+				 * irrelevant. */
+    int value;
+} Blt_SwitchSpec;
+
+#define BLT_SWITCH_ARGV_ONLY		(1<<0)
+#define BLT_SWITCH_OBJV_ONLY		(1<<0)
+#define BLT_SWITCH_ARGV_PARTIAL		(1<<1)
+#define BLT_SWITCH_OBJV_PARTIAL		(1<<1)
+/*
+ * Possible flag values for Blt_SwitchSpec structures.  Any bits at
+ * or above BLT_SWITCH_USER_BIT may be used by clients for selecting
+ * certain entries.  
+ */
+#define BLT_SWITCH_NULL_OK		(1<<0)
+#define BLT_SWITCH_DONT_SET_DEFAULT	(1<<3)
+#define BLT_SWITCH_SPECIFIED		(1<<4)
+#define BLT_SWITCH_USER_BIT		(1<<8)
+
+extern int Blt_ProcessSwitches _ANSI_ARGS_((Tcl_Interp *interp, 
+	Blt_SwitchSpec *specs, int argc, char **argv, char *record, 
+	int flags));
+
+extern void Blt_FreeSwitches _ANSI_ARGS_((Blt_SwitchSpec *specs, char *record, 
+	int flags));
+
+extern int Blt_SwitchChanged _ANSI_ARGS_(TCL_VARARGS(Blt_SwitchSpec *, specs));
+
+#if (TCL_VERSION_NUMBER >= _VERSION(8,0,0)) 
+extern int Blt_ProcessObjSwitches _ANSI_ARGS_((Tcl_Interp *interp, 
+	Blt_SwitchSpec *specPtr, int objc, Tcl_Obj *CONST *objv, char *record, 
+	int flags));
+#endif