tkColor.c
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- /*
- * tkColor.c --
- *
- * This file maintains a database of color values for the Tk
- * toolkit, in order to avoid round-trips to the server to
- * map color names to pixel values.
- *
- * Copyright (c) 1990-1994 The Regents of the University of California.
- * Copyright (c) 1994-1997 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: tkColor.c,v 1.9 2002/08/05 04:30:38 dgp Exp $
- */
- #include "tkColor.h"
- /*
- * Structures of the following following type are used as keys for
- * colorValueTable (in TkDisplay).
- */
- typedef struct {
- int red, green, blue; /* Values for desired color. */
- Colormap colormap; /* Colormap from which color will be
- * allocated. */
- Display *display; /* Display for colormap. */
- } ValueKey;
- /*
- * The structure below is used to allocate thread-local data.
- */
- typedef struct ThreadSpecificData {
- char rgbString[20]; /* */
- } ThreadSpecificData;
- static Tcl_ThreadDataKey dataKey;
- /*
- * Forward declarations for procedures defined in this file:
- */
- static void ColorInit _ANSI_ARGS_((TkDisplay *dispPtr));
- static void DupColorObjProc _ANSI_ARGS_((Tcl_Obj *srcObjPtr,
- Tcl_Obj *dupObjPtr));
- static void FreeColorObjProc _ANSI_ARGS_((Tcl_Obj *objPtr));
- static void InitColorObj _ANSI_ARGS_((Tcl_Obj *objPtr));
- /*
- * The following structure defines the implementation of the "color" Tcl
- * object, which maps a string color name to a TkColor object. The
- * ptr1 field of the Tcl_Obj points to a TkColor object.
- */
- Tcl_ObjType tkColorObjType = {
- "color", /* name */
- FreeColorObjProc, /* freeIntRepProc */
- DupColorObjProc, /* dupIntRepProc */
- NULL, /* updateStringProc */
- NULL /* setFromAnyProc */
- };
- /*
- *----------------------------------------------------------------------
- *
- * Tk_AllocColorFromObj --
- *
- * Given a Tcl_Obj *, map the value to a corresponding
- * XColor structure based on the tkwin given.
- *
- * Results:
- * The return value is a pointer to an XColor structure that
- * indicates the red, blue, and green intensities for the color
- * given by the string in objPtr, and also specifies a pixel value
- * to use to draw in that color. If an error occurs, NULL is
- * returned and an error message will be left in interp's result
- * (unless interp is NULL).
- *
- * Side effects:
- * The color is added to an internal database with a reference count.
- * For each call to this procedure, there should eventually be a call
- * to Tk_FreeColorFromObj so that the database is cleaned up when colors
- * aren't in use anymore.
- *
- *----------------------------------------------------------------------
- */
- XColor *
- Tk_AllocColorFromObj(interp, tkwin, objPtr)
- Tcl_Interp *interp; /* Used only for error reporting. If NULL,
- * then no messages are provided. */
- Tk_Window tkwin; /* Window in which the color will be used.*/
- Tcl_Obj *objPtr; /* Object that describes the color; string
- * value is a color name such as "red" or
- * "#ff0000".*/
- {
- TkColor *tkColPtr;
- if (objPtr->typePtr != &tkColorObjType) {
- InitColorObj(objPtr);
- }
- tkColPtr = (TkColor *) objPtr->internalRep.twoPtrValue.ptr1;
- /*
- * If the object currently points to a TkColor, see if it's the
- * one we want. If so, increment its reference count and return.
- */
- if (tkColPtr != NULL) {
- if (tkColPtr->resourceRefCount == 0) {
- /*
- * This is a stale reference: it refers to a TkColor that's
- * no longer in use. Clear the reference.
- */
- FreeColorObjProc(objPtr);
- tkColPtr = NULL;
- } else if ((Tk_Screen(tkwin) == tkColPtr->screen)
- && (Tk_Colormap(tkwin) == tkColPtr->colormap)) {
- tkColPtr->resourceRefCount++;
- return (XColor *) tkColPtr;
- }
- }
- /*
- * The object didn't point to the TkColor that we wanted. Search
- * the list of TkColors with the same name to see if one of the
- * other TkColors is the right one.
- */
- if (tkColPtr != NULL) {
- TkColor *firstColorPtr =
- (TkColor *) Tcl_GetHashValue(tkColPtr->hashPtr);
- FreeColorObjProc(objPtr);
- for (tkColPtr = firstColorPtr; tkColPtr != NULL;
- tkColPtr = tkColPtr->nextPtr) {
- if ((Tk_Screen(tkwin) == tkColPtr->screen)
- && (Tk_Colormap(tkwin) == tkColPtr->colormap)) {
- tkColPtr->resourceRefCount++;
- tkColPtr->objRefCount++;
- objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) tkColPtr;
- return (XColor *) tkColPtr;
- }
- }
- }
- /*
- * Still no luck. Call Tk_GetColor to allocate a new TkColor object.
- */
- tkColPtr = (TkColor *) Tk_GetColor(interp, tkwin, Tcl_GetString(objPtr));
- objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) tkColPtr;
- if (tkColPtr != NULL) {
- tkColPtr->objRefCount++;
- }
- return (XColor *) tkColPtr;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GetColor --
- *
- * Given a string name for a color, map the name to a corresponding
- * XColor structure.
- *
- * Results:
- * The return value is a pointer to an XColor structure that
- * indicates the red, blue, and green intensities for the color
- * given by "name", and also specifies a pixel value to use to
- * draw in that color. If an error occurs, NULL is returned and
- * an error message will be left in the interp's result.
- *
- * Side effects:
- * The color is added to an internal database with a reference count.
- * For each call to this procedure, there should eventually be a call
- * to Tk_FreeColor so that the database is cleaned up when colors
- * aren't in use anymore.
- *
- *----------------------------------------------------------------------
- */
- XColor *
- Tk_GetColor(interp, tkwin, name)
- Tcl_Interp *interp; /* Place to leave error message if
- * color can't be found. */
- Tk_Window tkwin; /* Window in which color will be used. */
- Tk_Uid name; /* Name of color to be allocated (in form
- * suitable for passing to XParseColor). */
- {
- Tcl_HashEntry *nameHashPtr;
- int new;
- TkColor *tkColPtr;
- TkColor *existingColPtr;
- TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
- if (!dispPtr->colorInit) {
- ColorInit(dispPtr);
- }
- /*
- * First, check to see if there's already a mapping for this color
- * name.
- */
- nameHashPtr = Tcl_CreateHashEntry(&dispPtr->colorNameTable, name, &new);
- if (!new) {
- existingColPtr = (TkColor *) Tcl_GetHashValue(nameHashPtr);
- for (tkColPtr = existingColPtr; tkColPtr != NULL;
- tkColPtr = tkColPtr->nextPtr) {
- if ((tkColPtr->screen == Tk_Screen(tkwin))
- && (Tk_Colormap(tkwin) == tkColPtr->colormap)) {
- tkColPtr->resourceRefCount++;
- return &tkColPtr->color;
- }
- }
- } else {
- existingColPtr = NULL;
- }
- /*
- * The name isn't currently known. Map from the name to a pixel
- * value.
- */
- tkColPtr = TkpGetColor(tkwin, name);
- if (tkColPtr == NULL) {
- if (interp != NULL) {
- if (*name == '#') {
- Tcl_AppendResult(interp, "invalid color name "", name,
- """, (char *) NULL);
- } else {
- Tcl_AppendResult(interp, "unknown color name "", name,
- """, (char *) NULL);
- }
- }
- if (new) {
- Tcl_DeleteHashEntry(nameHashPtr);
- }
- return (XColor *) NULL;
- }
- /*
- * Now create a new TkColor structure and add it to colorNameTable
- * (in TkDisplay).
- */
- tkColPtr->magic = COLOR_MAGIC;
- tkColPtr->gc = None;
- tkColPtr->screen = Tk_Screen(tkwin);
- tkColPtr->colormap = Tk_Colormap(tkwin);
- tkColPtr->visual = Tk_Visual(tkwin);
- tkColPtr->resourceRefCount = 1;
- tkColPtr->objRefCount = 0;
- tkColPtr->type = TK_COLOR_BY_NAME;
- tkColPtr->hashPtr = nameHashPtr;
- tkColPtr->nextPtr = existingColPtr;
- Tcl_SetHashValue(nameHashPtr, tkColPtr);
- return &tkColPtr->color;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GetColorByValue --
- *
- * Given a desired set of red-green-blue intensities for a color,
- * locate a pixel value to use to draw that color in a given
- * window.
- *
- * Results:
- * The return value is a pointer to an XColor structure that
- * indicates the closest red, blue, and green intensities available
- * to those specified in colorPtr, and also specifies a pixel
- * value to use to draw in that color.
- *
- * Side effects:
- * The color is added to an internal database with a reference count.
- * For each call to this procedure, there should eventually be a call
- * to Tk_FreeColor, so that the database is cleaned up when colors
- * aren't in use anymore.
- *
- *----------------------------------------------------------------------
- */
- XColor *
- Tk_GetColorByValue(tkwin, colorPtr)
- Tk_Window tkwin; /* Window where color will be used. */
- XColor *colorPtr; /* Red, green, and blue fields indicate
- * desired color. */
- {
- ValueKey valueKey;
- Tcl_HashEntry *valueHashPtr;
- int new;
- TkColor *tkColPtr;
- Display *display = Tk_Display(tkwin);
- TkDisplay *dispPtr = TkGetDisplay(display);
- if (!dispPtr->colorInit) {
- ColorInit(dispPtr);
- }
- /*
- * First, check to see if there's already a mapping for this color
- * name.
- */
- valueKey.red = colorPtr->red;
- valueKey.green = colorPtr->green;
- valueKey.blue = colorPtr->blue;
- valueKey.colormap = Tk_Colormap(tkwin);
- valueKey.display = display;
- valueHashPtr = Tcl_CreateHashEntry(&dispPtr->colorValueTable,
- (char *) &valueKey, &new);
- if (!new) {
- tkColPtr = (TkColor *) Tcl_GetHashValue(valueHashPtr);
- tkColPtr->resourceRefCount++;
- return &tkColPtr->color;
- }
- /*
- * The name isn't currently known. Find a pixel value for this
- * color and add a new structure to colorValueTable (in TkDisplay).
- */
- tkColPtr = TkpGetColorByValue(tkwin, colorPtr);
- tkColPtr->magic = COLOR_MAGIC;
- tkColPtr->gc = None;
- tkColPtr->screen = Tk_Screen(tkwin);
- tkColPtr->colormap = valueKey.colormap;
- tkColPtr->visual = Tk_Visual(tkwin);
- tkColPtr->resourceRefCount = 1;
- tkColPtr->objRefCount = 0;
- tkColPtr->type = TK_COLOR_BY_VALUE;
- tkColPtr->hashPtr = valueHashPtr;
- tkColPtr->nextPtr = NULL;
- Tcl_SetHashValue(valueHashPtr, tkColPtr);
- return &tkColPtr->color;
- }
- /*
- *--------------------------------------------------------------
- *
- * Tk_NameOfColor --
- *
- * Given a color, return a textual string identifying
- * the color.
- *
- * Results:
- * If colorPtr was created by Tk_GetColor, then the return
- * value is the "string" that was used to create it.
- * Otherwise the return value is a string that could have
- * been passed to Tk_GetColor to allocate that color. The
- * storage for the returned string is only guaranteed to
- * persist up until the next call to this procedure.
- *
- * Side effects:
- * None.
- *
- *--------------------------------------------------------------
- */
- CONST char *
- Tk_NameOfColor(colorPtr)
- XColor *colorPtr; /* Color whose name is desired. */
- {
- register TkColor *tkColPtr = (TkColor *) colorPtr;
-
- if ((tkColPtr->magic == COLOR_MAGIC) &&
- (tkColPtr->type == TK_COLOR_BY_NAME)) {
- return tkColPtr->hashPtr->key.string;
- } else {
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- sprintf(tsdPtr->rgbString, "#%04x%04x%04x", colorPtr->red,
- colorPtr->green, colorPtr->blue);
- return tsdPtr->rgbString;
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GCForColor --
- *
- * Given a color allocated from this module, this procedure
- * returns a GC that can be used for simple drawing with that
- * color.
- *
- * Results:
- * The return value is a GC with color set as its foreground
- * color and all other fields defaulted. This GC is only valid
- * as long as the color exists; it is freed automatically when
- * the last reference to the color is freed.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- GC
- Tk_GCForColor(colorPtr, drawable)
- XColor *colorPtr; /* Color for which a GC is desired. Must
- * have been allocated by Tk_GetColor. */
- Drawable drawable; /* Drawable in which the color will be
- * used (must have same screen and depth
- * as the one for which the color was
- * allocated). */
- {
- TkColor *tkColPtr = (TkColor *) colorPtr;
- XGCValues gcValues;
- /*
- * Do a quick sanity check to make sure this color was really
- * allocated by Tk_GetColor.
- */
- if (tkColPtr->magic != COLOR_MAGIC) {
- panic("Tk_GCForColor called with bogus color");
- }
- if (tkColPtr->gc == None) {
- gcValues.foreground = tkColPtr->color.pixel;
- tkColPtr->gc = XCreateGC(DisplayOfScreen(tkColPtr->screen),
- drawable, GCForeground, &gcValues);
- }
- return tkColPtr->gc;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_FreeColor --
- *
- * This procedure is called to release a color allocated by
- * Tk_GetColor.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The reference count associated with colorPtr is deleted, and
- * the color is released to X if there are no remaining uses
- * for it.
- *
- *----------------------------------------------------------------------
- */
- void
- Tk_FreeColor(colorPtr)
- XColor *colorPtr; /* Color to be released. Must have been
- * allocated by Tk_GetColor or
- * Tk_GetColorByValue. */
- {
- TkColor *tkColPtr = (TkColor *) colorPtr;
- Screen *screen = tkColPtr->screen;
- TkColor *prevPtr;
- /*
- * Do a quick sanity check to make sure this color was really
- * allocated by Tk_GetColor.
- */
- if (tkColPtr->magic != COLOR_MAGIC) {
- panic("Tk_FreeColor called with bogus color");
- }
- tkColPtr->resourceRefCount--;
- if (tkColPtr->resourceRefCount > 0) {
- return;
- }
- /*
- * This color is no longer being actively used, so free the color
- * resources associated with it and remove it from the hash table.
- * no longer any objects referencing it.
- */
- if (tkColPtr->gc != None) {
- XFreeGC(DisplayOfScreen(screen), tkColPtr->gc);
- tkColPtr->gc = None;
- }
- TkpFreeColor(tkColPtr);
- prevPtr = (TkColor *) Tcl_GetHashValue(tkColPtr->hashPtr);
- if (prevPtr == tkColPtr) {
- if (tkColPtr->nextPtr == NULL) {
- Tcl_DeleteHashEntry(tkColPtr->hashPtr);
- } else {
- Tcl_SetHashValue(tkColPtr->hashPtr, tkColPtr->nextPtr);
- }
- } else {
- while (prevPtr->nextPtr != tkColPtr) {
- prevPtr = prevPtr->nextPtr;
- }
- prevPtr->nextPtr = tkColPtr->nextPtr;
- }
- /*
- * Free the TkColor structure if there are no objects referencing
- * it. However, if there are objects referencing it then keep the
- * structure around; it will get freed when the last reference is
- * cleared
- */
- if (tkColPtr->objRefCount == 0) {
- ckfree((char *) tkColPtr);
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_FreeColorFromObj --
- *
- * This procedure is called to release a color allocated by
- * Tk_AllocColorFromObj. It does not throw away the Tcl_Obj *;
- * it only gets rid of the hash table entry for this color
- * and clears the cached value that is normally stored in the object.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The reference count associated with the color represented by
- * objPtr is decremented, and the color is released to X if there are
- * no remaining uses for it.
- *
- *----------------------------------------------------------------------
- */
- void
- Tk_FreeColorFromObj(tkwin, objPtr)
- Tk_Window tkwin; /* The window this color lives in. Needed
- * for the screen and colormap values. */
- Tcl_Obj *objPtr; /* The Tcl_Obj * to be freed. */
- {
- Tk_FreeColor(Tk_GetColorFromObj(tkwin, objPtr));
- FreeColorObjProc(objPtr);
- }
- /*
- *---------------------------------------------------------------------------
- *
- * FreeColorObjProc --
- *
- * This proc is called to release an object reference to a color.
- * Called when the object's internal rep is released or when
- * the cached tkColPtr needs to be changed.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object reference count is decremented. When both it
- * and the hash ref count go to zero, the color's resources
- * are released.
- *
- *---------------------------------------------------------------------------
- */
- static void
- FreeColorObjProc(objPtr)
- Tcl_Obj *objPtr; /* The object we are releasing. */
- {
- TkColor *tkColPtr = (TkColor *) objPtr->internalRep.twoPtrValue.ptr1;
- if (tkColPtr != NULL) {
- tkColPtr->objRefCount--;
- if ((tkColPtr->objRefCount == 0)
- && (tkColPtr->resourceRefCount == 0)) {
- ckfree((char *) tkColPtr);
- }
- objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) NULL;
- }
- }
- /*
- *---------------------------------------------------------------------------
- *
- * DupColorObjProc --
- *
- * When a cached color object is duplicated, this is called to
- * update the internal reps.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The color's objRefCount is incremented and the internal rep
- * of the copy is set to point to it.
- *
- *---------------------------------------------------------------------------
- */
- static void
- DupColorObjProc(srcObjPtr, dupObjPtr)
- Tcl_Obj *srcObjPtr; /* The object we are copying from. */
- Tcl_Obj *dupObjPtr; /* The object we are copying to. */
- {
- TkColor *tkColPtr = (TkColor *) srcObjPtr->internalRep.twoPtrValue.ptr1;
-
- dupObjPtr->typePtr = srcObjPtr->typePtr;
- dupObjPtr->internalRep.twoPtrValue.ptr1 = (VOID *) tkColPtr;
- if (tkColPtr != NULL) {
- tkColPtr->objRefCount++;
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GetColorFromObj --
- *
- * Returns the color referred to by a Tcl object. The color must
- * already have been allocated via a call to Tk_AllocColorFromObj
- * or Tk_GetColor.
- *
- * Results:
- * Returns the XColor * that matches the tkwin and the string rep
- * of objPtr.
- *
- * Side effects:
- * If the object is not already a color, the conversion will free
- * any old internal representation.
- *
- *----------------------------------------------------------------------
- */
- XColor *
- Tk_GetColorFromObj(tkwin, objPtr)
- Tk_Window tkwin; /* The window in which the color will be
- * used. */
- Tcl_Obj *objPtr; /* String value contains the name of the
- * desired color. */
- {
- TkColor *tkColPtr;
- Tcl_HashEntry *hashPtr;
- TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
- if (objPtr->typePtr != &tkColorObjType) {
- InitColorObj(objPtr);
- }
-
- /*
- * First check to see if the internal representation of the object
- * is defined and is a color that is valid for the current screen
- * and color map. If it is, we are done.
- */
- tkColPtr = (TkColor *) objPtr->internalRep.twoPtrValue.ptr1;
- if ((tkColPtr != NULL)
- && (tkColPtr->resourceRefCount > 0)
- && (Tk_Screen(tkwin) == tkColPtr->screen)
- && (Tk_Colormap(tkwin) == tkColPtr->colormap)) {
- /*
- * The object already points to the right TkColor structure.
- * Just return it.
- */
- return (XColor *) tkColPtr;
- }
- /*
- * If we reach this point, it means that the TkColor structure
- * that we have cached in the internal representation is not valid
- * for the current screen and colormap. But there is a list of
- * other TkColor structures attached to the TkDisplay. Walk this
- * list looking for the right TkColor structure.
- */
- hashPtr = Tcl_FindHashEntry(&dispPtr->colorNameTable,
- Tcl_GetString(objPtr));
- if (hashPtr == NULL) {
- goto error;
- }
- for (tkColPtr = (TkColor *) Tcl_GetHashValue(hashPtr);
- (tkColPtr != NULL); tkColPtr = tkColPtr->nextPtr) {
- if ((Tk_Screen(tkwin) == tkColPtr->screen)
- && (Tk_Colormap(tkwin) == tkColPtr->colormap)) {
- FreeColorObjProc(objPtr);
- objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) tkColPtr;
- tkColPtr->objRefCount++;
- return (XColor *) tkColPtr;
- }
- }
- error:
- panic(" Tk_GetColorFromObj called with non-existent color!");
- /*
- * The following code isn't reached; it's just there to please compilers.
- */
- return NULL;
- }
- /*
- *----------------------------------------------------------------------
- *
- * InitColorObj --
- *
- * Bookeeping procedure to change an objPtr to a color type.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The old internal rep of the object is freed. The object's
- * type is set to color with a NULL TkColor pointer (the pointer
- * will be set later by either Tk_AllocColorFromObj or
- * Tk_GetColorFromObj).
- *
- *----------------------------------------------------------------------
- */
- static void
- InitColorObj(objPtr)
- Tcl_Obj *objPtr; /* The object to convert. */
- {
- Tcl_ObjType *typePtr;
- /*
- * Free the old internalRep before setting the new one.
- */
- Tcl_GetString(objPtr);
- typePtr = objPtr->typePtr;
- if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
- (*typePtr->freeIntRepProc)(objPtr);
- }
- objPtr->typePtr = &tkColorObjType;
- objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) NULL;
- }
- /*
- *----------------------------------------------------------------------
- *
- * ColorInit --
- *
- * Initialize the structure used for color management.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Read the code.
- *
- *----------------------------------------------------------------------
- */
- static void
- ColorInit(dispPtr)
- TkDisplay *dispPtr;
- {
- if (!dispPtr->colorInit) {
- dispPtr->colorInit = 1;
- Tcl_InitHashTable(&dispPtr->colorNameTable, TCL_STRING_KEYS);
- Tcl_InitHashTable(&dispPtr->colorValueTable,
- sizeof(ValueKey)/sizeof(int));
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkDebugColor --
- *
- * This procedure returns debugging information about a color.
- *
- * Results:
- * The return value is a list with one sublist for each TkColor
- * corresponding to "name". Each sublist has two elements that
- * contain the resourceRefCount and objRefCount fields from the
- * TkColor structure.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- Tcl_Obj *
- TkDebugColor(tkwin, name)
- Tk_Window tkwin; /* The window in which the color will be
- * used (not currently used). */
- char *name; /* Name of the desired color. */
- {
- TkColor *tkColPtr;
- Tcl_HashEntry *hashPtr;
- Tcl_Obj *resultPtr, *objPtr;
- TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
- resultPtr = Tcl_NewObj();
- hashPtr = Tcl_FindHashEntry(&dispPtr->colorNameTable, name);
- if (hashPtr != NULL) {
- tkColPtr = (TkColor *) Tcl_GetHashValue(hashPtr);
- if (tkColPtr == NULL) {
- panic("TkDebugColor found empty hash table entry");
- }
- for ( ; (tkColPtr != NULL); tkColPtr = tkColPtr->nextPtr) {
- objPtr = Tcl_NewObj();
- Tcl_ListObjAppendElement(NULL, objPtr,
- Tcl_NewIntObj(tkColPtr->resourceRefCount));
- Tcl_ListObjAppendElement(NULL, objPtr,
- Tcl_NewIntObj(tkColPtr->objRefCount));
- Tcl_ListObjAppendElement(NULL, resultPtr, objPtr);
- }
- }
- return resultPtr;
- }