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-rw-r--r--generic/tkAtom.c135
1 files changed, 68 insertions, 67 deletions
diff --git a/generic/tkAtom.c b/generic/tkAtom.c
index 108e989..fe1b5b3 100644
--- a/generic/tkAtom.c
+++ b/generic/tkAtom.c
@@ -1,28 +1,26 @@
-/*
+/*
* tkAtom.c --
*
- * This file manages a cache of X Atoms in order to avoid
- * interactions with the X server. It's much like the Xmu
- * routines, except it has a cleaner interface (caller
- * doesn't have to provide permanent storage for atom names,
- * for example).
+ * This file manages a cache of X Atoms in order to avoid interactions
+ * with the X server. It's much like the Xmu routines, except it has a
+ * cleaner interface (caller doesn't have to provide permanent storage
+ * for atom names, for example).
*
* Copyright (c) 1990-1994 The Regents of the University of California.
* Copyright (c) 1994 Sun Microsystems, 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.
*/
-#include "tkPort.h"
#include "tkInt.h"
/*
- * The following are a list of the predefined atom strings.
- * They should match those found in xatom.h
+ * The following are a list of the predefined atom strings. They should match
+ * those found in xatom.h
*/
-static CONST char *atomNameArray[] = {
+static const char *atomNameArray[] = {
"PRIMARY", "SECONDARY", "ARC",
"ATOM", "BITMAP", "CARDINAL",
"COLORMAP", "CURSOR", "CUT_BUFFER0",
@@ -46,24 +44,24 @@ static CONST char *atomNameArray[] = {
"COPYRIGHT", "NOTICE", "FONT_NAME",
"FAMILY_NAME", "FULL_NAME", "CAP_HEIGHT",
"WM_CLASS", "WM_TRANSIENT_FOR",
- (char *) NULL
+ NULL
};
/*
- * Forward references to procedures defined in this file:
+ * Forward references to functions defined in this file:
*/
-static void AtomInit _ANSI_ARGS_((TkDisplay *dispPtr));
+static void AtomInit(TkDisplay *dispPtr);
/*
*--------------------------------------------------------------
*
* Tk_InternAtom --
*
- * Given a string, produce the equivalent X atom. This
- * procedure is equivalent to XInternAtom, except that it
- * keeps a local cache of atoms. Once a name is known,
- * the server need not be contacted again for that name.
+ * Given a string, produce the equivalent X atom. This function is
+ * equivalent to XInternAtom, except that it keeps a local cache of
+ * atoms. Once a name is known, the server need not be contacted again
+ * for that name.
*
* Results:
* The return value is the Atom corresponding to name.
@@ -75,32 +73,31 @@ static void AtomInit _ANSI_ARGS_((TkDisplay *dispPtr));
*/
Atom
-Tk_InternAtom(tkwin, name)
- Tk_Window tkwin; /* Window token; map name to atom
- * for this window's display. */
- CONST char *name; /* Name to turn into atom. */
+Tk_InternAtom(
+ Tk_Window tkwin, /* Window token; map name to atom for this
+ * window's display. */
+ CONST char *name) /* Name to turn into atom. */
{
register TkDisplay *dispPtr;
register Tcl_HashEntry *hPtr;
- int new;
+ int isNew;
dispPtr = ((TkWindow *) tkwin)->dispPtr;
if (!dispPtr->atomInit) {
AtomInit(dispPtr);
}
- hPtr = Tcl_CreateHashEntry(&dispPtr->nameTable, name, &new);
- if (new) {
+ hPtr = Tcl_CreateHashEntry(&dispPtr->nameTable, name, &isNew);
+ if (isNew) {
Tcl_HashEntry *hPtr2;
Atom atom;
atom = XInternAtom(dispPtr->display, name, False);
- Tcl_SetHashValue(hPtr, atom);
- hPtr2 = Tcl_CreateHashEntry(&dispPtr->atomTable, (char *) atom,
- &new);
+ Tcl_SetHashValue(hPtr, INT2PTR(atom));
+ hPtr2 = Tcl_CreateHashEntry(&dispPtr->atomTable, INT2PTR(atom), &isNew);
Tcl_SetHashValue(hPtr2, Tcl_GetHashKey(&dispPtr->nameTable, hPtr));
}
- return (Atom) Tcl_GetHashValue(hPtr);
+ return (Atom) PTR2INT(Tcl_GetHashValue(hPtr));
}
/*
@@ -108,16 +105,15 @@ Tk_InternAtom(tkwin, name)
*
* Tk_GetAtomName --
*
- * This procedure is equivalent to XGetAtomName except that
- * it uses the local atom cache to avoid contacting the
- * server.
+ * This function is equivalent to XGetAtomName except that it uses the
+ * local atom cache to avoid contacting the server.
*
* Results:
- * The return value is a character string corresponding to
- * the atom given by "atom". This string's storage space
- * is static: it need not be freed by the caller, and should
- * not be modified by the caller. If "atom" doesn't exist
- * on tkwin's display, then the string "?bad atom?" is returned.
+ * The return value is a character string corresponding to the atom given
+ * by "atom". This string's storage space is static: it need not be freed
+ * by the caller, and should not be modified by the caller. If "atom"
+ * doesn't exist on tkwin's display, then the string "?bad atom?" is
+ * returned.
*
* Side effects:
* None.
@@ -126,11 +122,10 @@ Tk_InternAtom(tkwin, name)
*/
CONST char *
-Tk_GetAtomName(tkwin, atom)
- Tk_Window tkwin; /* Window token; map atom to name
- * relative to this window's
- * display. */
- Atom atom; /* Atom whose name is wanted. */
+Tk_GetAtomName(
+ Tk_Window tkwin, /* Window token; map atom to name relative to
+ * this window's display. */
+ Atom atom) /* Atom whose name is wanted. */
{
register TkDisplay *dispPtr;
register Tcl_HashEntry *hPtr;
@@ -140,14 +135,14 @@ Tk_GetAtomName(tkwin, atom)
AtomInit(dispPtr);
}
- hPtr = Tcl_FindHashEntry(&dispPtr->atomTable, (char *) atom);
+ hPtr = Tcl_FindHashEntry(&dispPtr->atomTable, INT2PTR(atom));
if (hPtr == NULL) {
char *name;
Tk_ErrorHandler handler;
- int new, mustFree;
+ int isNew, mustFree;
- handler= Tk_CreateErrorHandler(dispPtr->display, BadAtom,
- -1, -1, (Tk_ErrorProc *) NULL, (ClientData) NULL);
+ handler = Tk_CreateErrorHandler(dispPtr->display, BadAtom, -1, -1,
+ NULL, (ClientData) NULL);
name = XGetAtomName(dispPtr->display, atom);
mustFree = 1;
if (name == NULL) {
@@ -155,15 +150,13 @@ Tk_GetAtomName(tkwin, atom)
mustFree = 0;
}
Tk_DeleteErrorHandler(handler);
- hPtr = Tcl_CreateHashEntry(&dispPtr->nameTable, (char *) name,
- &new);
- Tcl_SetHashValue(hPtr, atom);
+ hPtr = Tcl_CreateHashEntry(&dispPtr->nameTable, name, &isNew);
+ Tcl_SetHashValue(hPtr, INT2PTR(atom));
if (mustFree) {
XFree(name);
}
name = Tcl_GetHashKey(&dispPtr->nameTable, hPtr);
- hPtr = Tcl_CreateHashEntry(&dispPtr->atomTable, (char *) atom,
- &new);
+ hPtr = Tcl_CreateHashEntry(&dispPtr->atomTable, INT2PTR(atom), &isNew);
Tcl_SetHashValue(hPtr, name);
}
return Tcl_GetHashValue(hPtr);
@@ -186,8 +179,8 @@ Tk_GetAtomName(tkwin, atom)
*/
static void
-AtomInit(dispPtr)
- register TkDisplay *dispPtr; /* Display to initialize. */
+AtomInit(
+ register TkDisplay *dispPtr)/* Display to initialize. */
{
Tcl_HashEntry *hPtr;
Atom atom;
@@ -197,19 +190,27 @@ AtomInit(dispPtr)
Tcl_InitHashTable(&dispPtr->atomTable, TCL_ONE_WORD_KEYS);
for (atom = 1; atom <= XA_LAST_PREDEFINED; atom++) {
- hPtr = Tcl_FindHashEntry(&dispPtr->atomTable, (char *) atom);
- if (hPtr == NULL) {
- CONST char *name;
- int new;
-
- name = atomNameArray[atom - 1];
- hPtr = Tcl_CreateHashEntry(&dispPtr->nameTable, (char *) name,
- &new);
- Tcl_SetHashValue(hPtr, atom);
- name = Tcl_GetHashKey(&dispPtr->nameTable, hPtr);
- hPtr = Tcl_CreateHashEntry(&dispPtr->atomTable, (char *) atom,
- &new);
- Tcl_SetHashValue(hPtr, name);
+ const char *name;
+ int isNew;
+
+ hPtr = Tcl_FindHashEntry(&dispPtr->atomTable, INT2PTR(atom));
+ if (hPtr != NULL) {
+ continue;
}
+
+ name = atomNameArray[atom - 1];
+ hPtr = Tcl_CreateHashEntry(&dispPtr->nameTable, name, &isNew);
+ Tcl_SetHashValue(hPtr, INT2PTR(atom));
+ name = Tcl_GetHashKey(&dispPtr->nameTable, hPtr);
+ hPtr = Tcl_CreateHashEntry(&dispPtr->atomTable, INT2PTR(atom), &isNew);
+ Tcl_SetHashValue(hPtr, name);
}
}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
generated by cgit v0.12 at 2024-11-04 20:29:49 (GMT)