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|
/*
* bltConfig.c --
*
* This file contains a Tcl_Obj based replacement for the widget
* configuration functions in Tk.
*
* 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.
*
* Copyright 2003-2004 George A Howlett.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
* KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
* OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* This is a Tcl_Obj based replacement for the widget configuration
* functions in Tk.
*
* What not use the new Tk_Option interface?
*
* There were design changes in the new Tk_Option interface that
* make it unwieldy.
*
* o You have to dynamically allocate, store, and deallocate
* your option table.
* o The Tk_FreeConfigOptions routine requires a tkwin argument.
* Unfortunately, most widgets save the display pointer and
* de-reference their tkwin when the window is destroyed.
* o There's no TK_CONFIG_CUSTOM functionality. This means that
* save special options must be saved as strings by
* Tk_ConfigureWidget and processed later, thus losing the
* benefits of Tcl_Objs. It also make error handling
* problematic, since you don't pick up certain errors like
*
* .widget configure -myoption bad -myoption good
*
* You will never see the first "bad" value.
* o Especially compared to the former Tk_ConfigureWidget calls,
* the new interface is overly complex. If there was a big
* performance win, it might be worth the effort. But let's
* face it, this biggest wins are in processing custom options
* values with thousands of elements. Most common resources
* (font, color, etc) have string tokens anyways.
*
* On the other hand, the replacement functions in this file fell
* into place quite easily both from the aspect of API writer and
* user. The biggest benefit is that you don't need to change lots
* of working code just to get the benefits of Tcl_Objs.
*
*/
#include <assert.h>
#include <stdarg.h>
#include "bltMath.h"
#include "bltInt.h"
#include "bltFont.h"
#include "bltPicture.h"
#include "bltBgStyle.h"
#define PIXELS_NNEG 0
#define PIXELS_POS 1
#define PIXELS_ANY 2
/*
*---------------------------------------------------------------------------
*
* Blt_GetPositionFromObj --
*
* Convert a string representing a numeric position.
* A position can be in one of the following forms.
*
* number - number of the item in the hierarchy, indexed
* from zero.
* "end" - last position in the hierarchy.
*
* Results:
* A standard TCL result. If "string" is a valid index, then
* *indexPtr is filled with the corresponding numeric index.
* If "end" was selected then *indexPtr is set to -1.
* Otherwise an error message is left in interp->result.
*
* Side effects:
* None.
*
*---------------------------------------------------------------------------
*/
int
Blt_GetPositionFromObj(
Tcl_Interp *interp, /* Interpreter to report results back
* to. */
Tcl_Obj *objPtr, /* Tcl_Obj representation of the index.
* Can be an integer or "end" to refer
* to the last index. */
long *indexPtr) /* Holds the converted index. */
{
const char *string;
string = Tcl_GetString(objPtr);
if ((string[0] == 'e') && (strcmp(string, "end") == 0)) {
*indexPtr = -1; /* Indicates last position in hierarchy. */
} else {
long position;
if (Tcl_GetLongFromObj(interp, objPtr, &position) != TCL_OK) {
return TCL_ERROR;
}
if (position < 0) {
Tcl_AppendResult(interp, "bad position \"", string, "\"",
(char *)NULL);
return TCL_ERROR;
}
*indexPtr = position;
}
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_GetPixelsFromObj --
*
* Like Tk_GetPixelsFromObj, but checks for negative, zero.
*
* Results:
* A standard TCL result.
*
*---------------------------------------------------------------------------
*/
int
Blt_GetPixelsFromObj(
Tcl_Interp *interp,
Tk_Window tkwin,
Tcl_Obj *objPtr,
int check, /* Can be PIXELS_POS, PIXELS_NNEG,
* or PIXELS_ANY, */
int *valuePtr)
{
int length;
if (Tk_GetPixelsFromObj(interp, tkwin, objPtr, &length) != TCL_OK) {
return TCL_ERROR;
}
if (length >= SHRT_MAX) {
Tcl_AppendResult(interp, "bad distance \"", Tcl_GetString(objPtr),
"\": too big to represent", (char *)NULL);
return TCL_ERROR;
}
switch (check) {
case PIXELS_NNEG:
if (length < 0) {
Tcl_AppendResult(interp, "bad distance \"", Tcl_GetString(objPtr),
"\": can't be negative", (char *)NULL);
return TCL_ERROR;
}
break;
case PIXELS_POS:
if (length <= 0) {
Tcl_AppendResult(interp, "bad distance \"", Tcl_GetString(objPtr),
"\": must be positive", (char *)NULL);
return TCL_ERROR;
}
break;
case PIXELS_ANY:
break;
}
*valuePtr = length;
return TCL_OK;
}
int
Blt_GetPadFromObj(
Tcl_Interp *interp, /* Interpreter to send results back to */
Tk_Window tkwin, /* Window */
Tcl_Obj *objPtr, /* Pixel value string */
Blt_Pad *padPtr)
{
int side1, side2;
int objc;
Tcl_Obj **objv;
if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) {
return TCL_ERROR;
}
if ((objc < 1) || (objc > 2)) {
Tcl_AppendResult(interp, "wrong # elements in padding list",
(char *)NULL);
return TCL_ERROR;
}
if (Blt_GetPixelsFromObj(interp, tkwin, objv[0], PIXELS_NNEG,
&side1) != TCL_OK) {
return TCL_ERROR;
}
side2 = side1;
if ((objc > 1) &&
(Blt_GetPixelsFromObj(interp, tkwin, objv[1], PIXELS_NNEG,
&side2) != TCL_OK)) {
return TCL_ERROR;
}
/* Don't update the pad structure until we know both values are okay. */
padPtr->side1 = side1;
padPtr->side2 = side2;
return TCL_OK;
}
int
Blt_GetStateFromObj(
Tcl_Interp *interp, /* Interpreter to send results back to */
Tcl_Obj *objPtr, /* Pixel value string */
int *statePtr)
{
char c;
const char *string;
int length;
string = Tcl_GetStringFromObj(objPtr, &length);
c = string[0];
if ((c == 'n') && (strncmp(string, "normal", length) == 0)) {
*statePtr = STATE_NORMAL;
} else if ((c == 'd') && (strncmp(string, "disabled", length) == 0)) {
*statePtr = STATE_DISABLED;
} else if ((c == 'a') && (strncmp(string, "active", length) == 0)) {
*statePtr = STATE_ACTIVE;
} else {
Tcl_AppendResult(interp, "bad state \"", string,
"\": should be normal, active, or disabled", (char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
const char *
Blt_NameOfState(int state)
{
switch (state) {
case STATE_ACTIVE:
return "active";
case STATE_DISABLED:
return "disabled";
case STATE_NORMAL:
return "normal";
default:
return "???";
}
}
/*
*---------------------------------------------------------------------------
*
* Blt_NameOfFill --
*
* Converts the integer representing the fill style into a string.
*
*---------------------------------------------------------------------------
*/
const char *
Blt_NameOfFill(int fill)
{
switch (fill) {
case FILL_X:
return "x";
case FILL_Y:
return "y";
case FILL_NONE:
return "none";
case FILL_BOTH:
return "both";
default:
return "unknown value";
}
}
/*
*---------------------------------------------------------------------------
*
* Blt_GetFillFromObj --
*
* Converts the fill style string into its numeric representation.
*
* Valid style strings are:
*
* "none" Use neither plane.
* "x" X-coordinate plane.
* "y" Y-coordinate plane.
* "both" Use both coordinate planes.
*
*---------------------------------------------------------------------------
*/
/*ARGSUSED*/
int
Blt_GetFillFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int *fillPtr)
{
char c;
const char *string;
int length;
string = Tcl_GetStringFromObj(objPtr, &length);
c = string[0];
if ((c == 'n') && (strncmp(string, "none", length) == 0)) {
*fillPtr = FILL_NONE;
} else if ((c == 'x') && (strncmp(string, "x", length) == 0)) {
*fillPtr = FILL_X;
} else if ((c == 'y') && (strncmp(string, "y", length) == 0)) {
*fillPtr = FILL_Y;
} else if ((c == 'b') && (strncmp(string, "both", length) == 0)) {
*fillPtr = FILL_BOTH;
} else {
Tcl_AppendResult(interp, "bad argument \"", string,
"\": should be \"none\", \"x\", \"y\", or \"both\"", (char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_NameOfResize --
*
* Converts the resize value into its string representation.
*
* Results:
* Returns a pointer to the static name string.
*
*---------------------------------------------------------------------------
*/
const char *
Blt_NameOfResize(int resize)
{
switch (resize & RESIZE_BOTH) {
case RESIZE_NONE:
return "none";
case RESIZE_EXPAND:
return "expand";
case RESIZE_SHRINK:
return "shrink";
case RESIZE_BOTH:
return "both";
default:
return "unknown resize value";
}
}
/*
*---------------------------------------------------------------------------
*
* Blt_GetResizeFromObj --
*
* Converts the resize string into its numeric representation.
*
* Valid style strings are:
*
* "none"
* "expand"
* "shrink"
* "both"
*
*---------------------------------------------------------------------------
*/
/*ARGSUSED*/
int
Blt_GetResizeFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int *resizePtr)
{
char c;
const char *string;
int length;
string = Tcl_GetStringFromObj(objPtr, &length);
c = string[0];
if ((c == 'n') && (strncmp(string, "none", length) == 0)) {
*resizePtr = RESIZE_NONE;
} else if ((c == 'b') && (strncmp(string, "both", length) == 0)) {
*resizePtr = RESIZE_BOTH;
} else if ((c == 'e') && (strncmp(string, "expand", length) == 0)) {
*resizePtr = RESIZE_EXPAND;
} else if ((c == 's') && (strncmp(string, "shrink", length) == 0)) {
*resizePtr = RESIZE_SHRINK;
} else {
Tcl_AppendResult(interp, "bad resize argument \"", string,
"\": should be \"none\", \"expand\", \"shrink\", or \"both\"",
(char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_GetDashesFromObj --
*
* Converts a TCL list of dash values into a dash list ready for
* use with XSetDashes.
*
* A valid list dash values can have zero through 11 elements
* (PostScript limit). Values must be between 1 and 255. Although
* a list of 0 (like the empty string) means no dashes.
*
* Results:
* A standard TCL result. If the list represented a valid dash
* list TCL_OK is returned and *dashesPtr* will contain the
* valid dash list. Otherwise, TCL_ERROR is returned and
* interp->result will contain an error message.
*
*
*---------------------------------------------------------------------------
*/
int
Blt_GetDashesFromObj(
Tcl_Interp *interp,
Tcl_Obj *objPtr,
Blt_Dashes *dashesPtr)
{
const char *string;
char c;
string = Tcl_GetString(objPtr);
if (string == NULL) {
dashesPtr->values[0] = 0;
return TCL_OK;
}
c = string[0];
if (c == '\0') {
dashesPtr->values[0] = 0;
} else if ((c == 'd') && (strcmp(string, "dot") == 0)) {
/* 1 */
dashesPtr->values[0] = 1;
dashesPtr->values[1] = 0;
} else if ((c == 'd') && (strcmp(string, "dash") == 0)) {
/* 5 2 */
dashesPtr->values[0] = 5;
dashesPtr->values[1] = 2;
dashesPtr->values[2] = 0;
} else if ((c == 'd') && (strcmp(string, "dashdot") == 0)) {
/* 2 4 2 */
dashesPtr->values[0] = 2;
dashesPtr->values[1] = 4;
dashesPtr->values[2] = 2;
dashesPtr->values[3] = 0;
} else if ((c == 'd') && (strcmp(string, "dashdotdot") == 0)) {
/* 2 4 2 2 */
dashesPtr->values[0] = 2;
dashesPtr->values[1] = 4;
dashesPtr->values[2] = 2;
dashesPtr->values[3] = 2;
dashesPtr->values[4] = 0;
} else {
int objc;
Tcl_Obj **objv;
int i;
if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) {
return TCL_ERROR;
}
if (objc > 11) { /* This is the postscript limit */
Tcl_AppendResult(interp, "too many values in dash list \"",
string, "\"", (char *)NULL);
return TCL_ERROR;
}
for (i = 0; i < objc; i++) {
int value;
if (Tcl_GetIntFromObj(interp, objv[i], &value) != TCL_OK) {
return TCL_ERROR;
}
/*
* Backward compatibility:
* Allow list of 0 to turn off dashes
*/
if ((value == 0) && (objc == 1)) {
break;
}
if ((value < 1) || (value > 255)) {
Tcl_AppendResult(interp, "dash value \"",
Tcl_GetString(objv[i]), "\" is out of range",
(char *)NULL);
return TCL_ERROR;
}
dashesPtr->values[i] = (unsigned char)value;
}
/* Make sure the array ends with a NUL byte */
dashesPtr->values[i] = 0;
}
return TCL_OK;
}
const char *
Blt_NameOfSide(int side)
{
switch (side) {
case SIDE_LEFT:
return "left";
case SIDE_RIGHT:
return "right";
case SIDE_BOTTOM:
return "bottom";
case SIDE_TOP:
return "top";
}
return "unknown side value";
}
/*
*---------------------------------------------------------------------------
*
* Blt_GetSideFromObj --
*
* Converts the fill style string into its numeric representation.
*
* Valid style strings are "left", "right", "top", or "bottom".
*
*---------------------------------------------------------------------------
*/
/*ARGSUSED */
int
Blt_GetSideFromObj(
Tcl_Interp *interp, /* Interpreter to send results back to */
Tcl_Obj *objPtr, /* Value string */
int *sidePtr) /* (out) Token representing side:
* either SIDE_LEFT, SIDE_RIGHT,
* SIDE_TOP, or SIDE_BOTTOM. */
{
char c;
const char *string;
int length;
string = Tcl_GetStringFromObj(objPtr, &length);
c = string[0];
if ((c == 'l') && (strncmp(string, "left", length) == 0)) {
*sidePtr = SIDE_LEFT;
} else if ((c == 'r') && (strncmp(string, "right", length) == 0)) {
*sidePtr = SIDE_RIGHT;
} else if ((c == 't') && (strncmp(string, "top", length) == 0)) {
*sidePtr = SIDE_TOP;
} else if ((c == 'b') && (strncmp(string, "bottom", length) == 0)) {
*sidePtr = SIDE_BOTTOM;
} else {
Tcl_AppendResult(interp, "bad side \"", string,
"\": should be left, right, top, or bottom", (char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_ResetLimits --
*
* Resets the limits to their default values.
*
* Results:
* None.
*
*---------------------------------------------------------------------------
*/
void
Blt_ResetLimits(Blt_Limits *limitsPtr) /* Limits to be imposed on the value */
{
limitsPtr->flags = 0;
limitsPtr->min = LIMITS_MIN;
limitsPtr->max = LIMITS_MAX;
limitsPtr->nom = LIMITS_NOM;
}
int
Blt_GetLimitsFromObj(Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj *objPtr,
Blt_Limits *limitsPtr)
{
int values[3];
int nValues;
int limitsFlags;
/* Initialize limits to default values */
values[2] = LIMITS_NOM;
values[1] = LIMITS_MAX;
values[0] = LIMITS_MIN;
limitsFlags = 0;
nValues = 0;
if (objPtr != NULL) {
Tcl_Obj **objv;
int objc;
int i;
if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) {
return TCL_ERROR;
}
if (objc > 3) {
Tcl_AppendResult(interp, "wrong # limits \"", Tcl_GetString(objPtr),
"\"", (char *)NULL);
return TCL_ERROR;
}
for (i = 0; i < objc; i++) {
const char *string;
int size;
string = Tcl_GetString(objv[i]);
if (string[0] == '\0') {
continue; /* Empty string: use default value */
}
limitsFlags |= (1 << i);
if (Tk_GetPixelsFromObj(interp, tkwin, objv[i], &size) != TCL_OK) {
return TCL_ERROR;
}
if ((size < LIMITS_MIN) || (size > LIMITS_MAX)) {
Tcl_AppendResult(interp, "bad limit \"", string, "\"",
(char *)NULL);
return TCL_ERROR;
}
values[i] = size;
}
nValues = objc;
}
/*
* Check the limits specified. We can't check the requested size of
* widgets.
*/
switch (nValues) {
case 1:
limitsFlags |= (LIMITS_MIN_SET | LIMITS_MAX_SET);
values[1] = values[0]; /* Set minimum and maximum to value */
break;
case 2:
if (values[1] < values[0]) {
Tcl_AppendResult(interp, "bad range \"", Tcl_GetString(objPtr),
"\": min > max", (char *)NULL);
return TCL_ERROR; /* Minimum is greater than maximum */
}
break;
case 3:
if (values[1] < values[0]) {
Tcl_AppendResult(interp, "bad range \"", Tcl_GetString(objPtr),
"\": min > max", (char *)NULL);
return TCL_ERROR; /* Minimum is greater than maximum */
}
if ((values[2] < values[0]) || (values[2] > values[1])) {
Tcl_AppendResult(interp, "nominal value \"", Tcl_GetString(objPtr),
"\" out of range", (char *)NULL);
return TCL_ERROR; /* Nominal is outside of range defined
* by minimum and maximum */
}
break;
}
limitsPtr->min = values[0];
limitsPtr->max = values[1];
limitsPtr->nom = values[2];
limitsPtr->flags = limitsFlags;
return TCL_OK;
}
/* Configuration option helper routines */
/*
*---------------------------------------------------------------------------
*
* DoConfig --
*
* This procedure applies a single configuration option
* to a widget record.
*
* Results:
* A standard TCL return value.
*
* Side effects:
* WidgRec is modified as indicated by specPtr and value.
* The old value is recycled, if that is appropriate for
* the value type.
*
*---------------------------------------------------------------------------
*/
static int
DoConfig(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tk_Window tkwin, /* Window containing widget (needed to
* set up X resources). */
Blt_ConfigSpec *sp, /* Specifier to apply. */
Tcl_Obj *objPtr, /* Value to use to fill in widgRec. */
char *widgRec) /* Record whose fields are to be
* modified. Values must be properly
* initialized. */
{
char *ptr;
int objIsEmpty;
objIsEmpty = FALSE;
if (objPtr == NULL) {
objIsEmpty = TRUE;
} else if (sp->specFlags & BLT_CONFIG_NULL_OK) {
int length;
if (objPtr->bytes != NULL) {
length = objPtr->length;
} else {
Tcl_GetStringFromObj(objPtr, &length);
}
objIsEmpty = (length == 0);
}
do {
ptr = widgRec + sp->offset;
switch (sp->type) {
case BLT_CONFIG_ANCHOR:
{
Tk_Anchor anchor;
if (Tk_GetAnchorFromObj(interp, objPtr, &anchor) != TCL_OK) {
return TCL_ERROR;
}
*(Tk_Anchor *)ptr = anchor;
}
break;
case BLT_CONFIG_BITMAP:
{
Pixmap bitmap;
if (objIsEmpty) {
bitmap = None;
} else {
bitmap = Tk_AllocBitmapFromObj(interp, tkwin, objPtr);
if (bitmap == None) {
return TCL_ERROR;
}
}
if (*(Pixmap *)ptr != None) {
Tk_FreeBitmap(Tk_Display(tkwin), *(Pixmap *)ptr);
}
*(Pixmap *)ptr = bitmap;
}
break;
case BLT_CONFIG_BOOLEAN:
{
int bool;
if (Tcl_GetBooleanFromObj(interp, objPtr, &bool) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = bool;
}
break;
case BLT_CONFIG_BORDER:
{
Tk_3DBorder border;
if (objIsEmpty) {
border = NULL;
} else {
border = Tk_Alloc3DBorderFromObj(interp, tkwin, objPtr);
if (border == NULL) {
return TCL_ERROR;
}
}
if (*(Tk_3DBorder *)ptr != NULL) {
Tk_Free3DBorder(*(Tk_3DBorder *)ptr);
}
*(Tk_3DBorder *)ptr = border;
}
break;
case BLT_CONFIG_CAP_STYLE:
{
int cap;
Tk_Uid uid;
uid = Tk_GetUid(Tcl_GetString(objPtr));
if (Tk_GetCapStyle(interp, uid, &cap) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = cap;
}
break;
case BLT_CONFIG_COLOR:
{
XColor *color;
if (objIsEmpty) {
color = NULL;
} else {
color = Tk_GetColor(interp, tkwin,
Tk_GetUid(Tcl_GetString(objPtr)));
if (color == NULL) {
return TCL_ERROR;
}
}
if (*(XColor **)ptr != NULL) {
Tk_FreeColor(*(XColor **)ptr);
}
*(XColor **)ptr = color;
}
break;
case BLT_CONFIG_CURSOR:
case BLT_CONFIG_ACTIVE_CURSOR:
{
Tk_Cursor cursor;
if (objIsEmpty) {
cursor = None;
} else {
cursor = Tk_AllocCursorFromObj(interp, tkwin, objPtr);
if (cursor == None) {
return TCL_ERROR;
}
}
if (*(Tk_Cursor *)ptr != None) {
Tk_FreeCursor(Tk_Display(tkwin), *(Tk_Cursor *)ptr);
}
*(Tk_Cursor *)ptr = cursor;
if (sp->type == BLT_CONFIG_ACTIVE_CURSOR) {
Tk_DefineCursor(tkwin, cursor);
}
}
break;
case BLT_CONFIG_CUSTOM:
if ((*sp->customPtr->parseProc)(sp->customPtr->clientData, interp,
tkwin, objPtr, widgRec, sp->offset, sp->specFlags) != TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_DOUBLE:
{
double value;
if (Tcl_GetDoubleFromObj(interp, objPtr, &value) != TCL_OK) {
return TCL_ERROR;
}
*(double *)ptr = value;
}
break;
case BLT_CONFIG_FONT:
{
Blt_Font font;
if (objIsEmpty) {
font = NULL;
} else {
font = Blt_AllocFontFromObj(interp, tkwin, objPtr);
if (font == NULL) {
return TCL_ERROR;
}
}
if (*(Blt_Font *)ptr != NULL) {
Blt_FreeFont(*(Blt_Font *)ptr);
}
*(Blt_Font *)ptr = font;
}
break;
case BLT_CONFIG_TK_FONT:
{
Tk_Font font;
if (objIsEmpty) {
font = NULL;
} else {
font = Tk_AllocFontFromObj(interp, tkwin, objPtr);
if (font == NULL) {
return TCL_ERROR;
}
}
if (*(Tk_Font *)ptr != NULL) {
Tk_FreeFont(*(Tk_Font *)ptr);
}
*(Tk_Font *)ptr = font;
}
break;
case BLT_CONFIG_INT:
{
int value;
if (Tcl_GetIntFromObj(interp, objPtr, &value) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = value;
}
break;
case BLT_CONFIG_JOIN_STYLE:
{
int join;
Tk_Uid uid;
uid = Tk_GetUid(Tcl_GetString(objPtr));
if (Tk_GetJoinStyle(interp, uid, &join) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = join;
}
break;
case BLT_CONFIG_JUSTIFY:
{
Tk_Justify justify;
if (Tk_GetJustifyFromObj(interp, objPtr, &justify) != TCL_OK) {
return TCL_ERROR;
}
*(Tk_Justify *)ptr = justify;
}
break;
case BLT_CONFIG_MM:
{
double value;
if (Tk_GetMMFromObj(interp, tkwin, objPtr, &value) != TCL_OK) {
return TCL_ERROR;
}
*(double *)ptr = value;
}
break;
case BLT_CONFIG_RELIEF:
{
int relief;
if (Tk_GetReliefFromObj(interp, objPtr, &relief) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = relief;
}
break;
case BLT_CONFIG_STRING:
{
char *value;
value = (objIsEmpty) ? NULL :
Blt_Strdup(Tcl_GetString(objPtr));
if (*(char **)ptr != NULL) {
free(*(char **)ptr);
*((char **) ptr) = NULL;
}
*(char **)ptr = value;
}
break;
case BLT_CONFIG_UID:
if (*(Blt_Uid *)ptr != NULL) {
Blt_FreeUid(*(Blt_Uid *)ptr);
}
if (objIsEmpty) {
*(Blt_Uid *)ptr = NULL;
} else {
*(Blt_Uid *)ptr = Blt_GetUid(Tcl_GetString(objPtr));
}
break;
case BLT_CONFIG_WINDOW:
{
Tk_Window tkwin2;
if (objIsEmpty) {
tkwin2 = None;
} else {
const char *path;
path = Tcl_GetString(objPtr);
tkwin2 = Tk_NameToWindow(interp, path, tkwin);
if (tkwin2 == NULL) {
return TCL_ERROR;
}
}
*(Tk_Window *)ptr = tkwin2;
}
break;
case BLT_CONFIG_BITMASK:
{
int bool;
unsigned long mask, flags;
if (Tcl_GetBooleanFromObj(interp, objPtr, &bool) != TCL_OK) {
return TCL_ERROR;
}
mask = (unsigned long)sp->customPtr;
flags = *(int *)ptr;
flags &= ~mask;
if (bool) {
flags |= mask;
}
*(int *)ptr = flags;
}
break;
case BLT_CONFIG_BITMASK_INVERT:
{
int bool;
unsigned long mask, flags;
if (Tcl_GetBooleanFromObj(interp, objPtr, &bool) != TCL_OK) {
return TCL_ERROR;
}
mask = (unsigned long)sp->customPtr;
flags = *(int *)ptr;
flags &= ~mask;
if (!bool) {
flags |= mask;
}
*(int *)ptr = flags;
}
break;
case BLT_CONFIG_DASHES:
if (Blt_GetDashesFromObj(interp, objPtr, (Blt_Dashes *)ptr)
!= TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_FILL:
if (Blt_GetFillFromObj(interp, objPtr, (int *)ptr) != TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_RESIZE:
if (Blt_GetResizeFromObj(interp, objPtr, (int *)ptr) != TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_FLOAT:
{
double value;
if (Tcl_GetDoubleFromObj(interp, objPtr, &value) != TCL_OK) {
return TCL_ERROR;
}
*(float *)ptr = (float)value;
}
break;
case BLT_CONFIG_INT_NNEG:
{
long value;
if (Blt_GetCountFromObj(interp, objPtr, COUNT_NNEG,
&value) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = (int)value;
}
break;
case BLT_CONFIG_INT_POS:
{
long value;
if (Blt_GetCountFromObj(interp, objPtr, COUNT_POS, &value)
!= TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = (int)value;
}
break;
case BLT_CONFIG_LIST:
{
const char **argv;
int argc;
if (Tcl_SplitList(interp, Tcl_GetString(objPtr), &argc, &argv)
!= TCL_OK) {
return TCL_ERROR;
}
if (*(char ***)ptr != NULL) {
Tcl_Free((void*)(*(char ***)ptr));
*((char ***) ptr) = NULL;
}
*(const char ***)ptr = argv;
}
break;
case BLT_CONFIG_LONG:
{
long value;
if (Tcl_GetLongFromObj(interp, objPtr, &value) != TCL_OK) {
return TCL_ERROR;
}
*(long *)ptr = value;
}
break;
case BLT_CONFIG_LONG_NNEG:
{
long value;
if (Blt_GetCountFromObj(interp, objPtr, COUNT_NNEG,
&value) != TCL_OK) {
return TCL_ERROR;
}
*(long *)ptr = value;
}
break;
case BLT_CONFIG_LONG_POS:
{
long value;
if (Blt_GetCountFromObj(interp, objPtr, COUNT_POS, &value)
!= TCL_OK) {
return TCL_ERROR;
}
*(long *)ptr = value;
}
break;
case BLT_CONFIG_OBJ:
{
Tcl_IncrRefCount(objPtr);
if (*(Tcl_Obj **)ptr != NULL) {
Tcl_DecrRefCount(*(Tcl_Obj **)ptr);
}
*(Tcl_Obj **)ptr = objPtr;
}
break;
case BLT_CONFIG_PAD:
if (Blt_GetPadFromObj(interp, tkwin, objPtr, (Blt_Pad *)ptr)
!= TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_PIXELS_NNEG:
{
int value;
if (Blt_GetPixelsFromObj(interp, tkwin, objPtr,
PIXELS_NNEG, &value) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = value;
}
break;
case BLT_CONFIG_PIXELS:
{
int value;
if (Blt_GetPixelsFromObj(interp, tkwin, objPtr, PIXELS_ANY,
&value) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = value;
}
break;
case BLT_CONFIG_PIXELS_POS:
{
int value;
if (Blt_GetPixelsFromObj(interp, tkwin, objPtr, PIXELS_POS,
&value) != TCL_OK) {
return TCL_ERROR;
}
*(int *)ptr = value;
}
break;
case BLT_CONFIG_STATE:
if (Blt_GetStateFromObj(interp, objPtr, (int *)ptr) != TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_SIDE:
if (Blt_GetSideFromObj(interp, objPtr, (int *)ptr) != TCL_OK) {
return TCL_ERROR;
}
break;
case BLT_CONFIG_BACKGROUND:
{
Blt_Background style;
if (objIsEmpty) {
style = NULL;
} else {
style = Blt_GetBackgroundFromObj(interp, tkwin, objPtr);
if (style == NULL) {
return TCL_ERROR;
}
}
if (*(Blt_Background *)ptr != NULL) {
Blt_FreeBackground(*(Blt_Background *)ptr);
}
*(Blt_Background *)ptr = style;
}
break;
case BLT_CONFIG_PIX32:
if (Blt_GetPixelFromObj(interp, objPtr, (Blt_Pixel *)ptr)!=TCL_OK) {
return TCL_ERROR;
}
break;
default:
Tcl_AppendResult(interp, "bad config table: unknown type ",
Blt_Itoa(sp->type), (char *)NULL);
return TCL_ERROR;
}
sp++;
} while ((sp->switchName == NULL) && (sp->type != BLT_CONFIG_END));
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* FormatConfigValue --
*
* This procedure formats the current value of a configuration
* option.
*
* Results:
* The return value is the formatted value of the option given
* by specPtr and widgRec. If the value is static, so that it
* need not be freed, *freeProcPtr will be set to NULL; otherwise
* *freeProcPtr will be set to the address of a procedure to
* free the result, and the caller must invoke this procedure
* when it is finished with the result.
*
* Side effects:
* None.
*
*---------------------------------------------------------------------------
*/
static Tcl_Obj *
FormatConfigValue(
Tcl_Interp *interp, /* Interpreter for use in real conversions. */
Tk_Window tkwin, /* Window corresponding to widget. */
Blt_ConfigSpec *sp, /* Pointer to information describing option.
* Must not point to a synonym option. */
char *widgRec) /* Pointer to record holding current
* values of info for widget. */
{
char *ptr;
const char *string;
ptr = widgRec + sp->offset;
string = "";
switch (sp->type) {
case BLT_CONFIG_ANCHOR:
string = Tk_NameOfAnchor(*(Tk_Anchor *)ptr);
break;
case BLT_CONFIG_BITMAP:
if (*(Pixmap *)ptr != None) {
string = Tk_NameOfBitmap(Tk_Display(tkwin), *(Pixmap *)ptr);
}
break;
case BLT_CONFIG_BOOLEAN:
return Tcl_NewBooleanObj(*(int *)ptr);
case BLT_CONFIG_BORDER:
if (*(Tk_3DBorder *)ptr != NULL) {
string = Tk_NameOf3DBorder(*(Tk_3DBorder *)ptr);
}
break;
case BLT_CONFIG_CAP_STYLE:
string = Tk_NameOfCapStyle(*(int *)ptr);
break;
case BLT_CONFIG_COLOR:
if (*(XColor **)ptr != NULL) {
string = Tk_NameOfColor(*(XColor **)ptr);
}
break;
case BLT_CONFIG_CURSOR:
case BLT_CONFIG_ACTIVE_CURSOR:
if (*(Tk_Cursor *)ptr != None) {
string = Tk_NameOfCursor(Tk_Display(tkwin), *(Tk_Cursor *)ptr);
}
break;
case BLT_CONFIG_CUSTOM:
return (*sp->customPtr->printProc)
(sp->customPtr->clientData, interp, tkwin, widgRec,
sp->offset, sp->specFlags);
case BLT_CONFIG_DOUBLE:
return Tcl_NewDoubleObj(*(double *)ptr);
case BLT_CONFIG_FONT:
if (*(Blt_Font *)ptr != NULL) {
string = Blt_NameOfFont(*(Blt_Font *)ptr);
}
break;
case BLT_CONFIG_TK_FONT:
if (*(Tk_Font *)ptr != NULL) {
string = Tk_NameOfFont(*(Tk_Font *)ptr);
}
break;
case BLT_CONFIG_INT:
return Tcl_NewIntObj(*(int *)ptr);
case BLT_CONFIG_JOIN_STYLE:
string = Tk_NameOfJoinStyle(*(int *)ptr);
break;
case BLT_CONFIG_JUSTIFY:
string = Tk_NameOfJustify(*(Tk_Justify *)ptr);
break;
case BLT_CONFIG_MM:
return Tcl_NewDoubleObj(*(double *)ptr);
case BLT_CONFIG_PIXELS:
case BLT_CONFIG_PIXELS_POS:
case BLT_CONFIG_PIXELS_NNEG:
return Tcl_NewIntObj(*(int *)ptr);
case BLT_CONFIG_RELIEF:
string = Tk_NameOfRelief(*(int *)ptr);
break;
case BLT_CONFIG_STRING:
case BLT_CONFIG_UID:
if (*(char **)ptr != NULL) {
string = *(char **)ptr;
}
break;
case BLT_CONFIG_BITMASK:
{
unsigned long flag;
flag = (*(unsigned long *)ptr) & (unsigned long)sp->customPtr;
return Tcl_NewBooleanObj((flag != 0));
}
case BLT_CONFIG_BITMASK_INVERT:
{
unsigned long flag;
flag = (*(unsigned long *)ptr) & (unsigned long)sp->customPtr;
return Tcl_NewBooleanObj((flag == 0));
}
case BLT_CONFIG_DASHES:
{
unsigned char *p;
Tcl_Obj *listObjPtr;
Blt_Dashes *dashesPtr = (Blt_Dashes *)ptr;
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
for(p = dashesPtr->values; *p != 0; p++) {
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewIntObj(*p));
}
return listObjPtr;
}
case BLT_CONFIG_INT_NNEG:
case BLT_CONFIG_INT_POS:
return Tcl_NewIntObj(*(int *)ptr);
case BLT_CONFIG_FILL:
string = Blt_NameOfFill(*(int *)ptr);
break;
case BLT_CONFIG_RESIZE:
string = Blt_NameOfResize(*(int *)ptr);
break;
case BLT_CONFIG_FLOAT:
{
double x = *(float *)ptr;
return Tcl_NewDoubleObj(x);
}
case BLT_CONFIG_LIST:
{
Tcl_Obj *objPtr, *listObjPtr;
char *const *p;
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
for (p = *(char ***)ptr; *p != NULL; p++) {
objPtr = Tcl_NewStringObj(*p, -1);
Tcl_ListObjAppendElement(interp, listObjPtr, objPtr);
}
return listObjPtr;
}
case BLT_CONFIG_LONG:
return Tcl_NewLongObj(*(long *)ptr);
case BLT_CONFIG_LONG_NNEG:
case BLT_CONFIG_LONG_POS:
return Tcl_NewLongObj(*(long *)ptr);
case BLT_CONFIG_OBJ:
if (*(Tcl_Obj **)ptr != NULL) {
return *(Tcl_Obj **)ptr;
}
break;
case BLT_CONFIG_PAD:
{
Blt_Pad *padPtr = (Blt_Pad *)ptr;
Tcl_Obj *objPtr, *listObjPtr;
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
objPtr = Tcl_NewIntObj(padPtr->side1);
Tcl_ListObjAppendElement(interp, listObjPtr, objPtr);
objPtr = Tcl_NewIntObj(padPtr->side2);
Tcl_ListObjAppendElement(interp, listObjPtr, objPtr);
return listObjPtr;
}
case BLT_CONFIG_STATE:
string = Blt_NameOfState(*(int *)ptr);
break;
case BLT_CONFIG_SIDE:
string = Blt_NameOfSide(*(int *)ptr);
break;
case BLT_CONFIG_BACKGROUND:
if (*(Blt_Background *)ptr != NULL) {
string = Blt_NameOfBackground(*(Blt_Background *)ptr);
}
break;
case BLT_CONFIG_PIX32:
string = Blt_NameOfPixel((Blt_Pixel *)ptr);
break;
default:
string = "?? unknown type ??";
}
return Tcl_NewStringObj(string, -1);
}
/*
*---------------------------------------------------------------------------
*
* FormatConfigInfo --
*
* Create a valid TCL list holding the configuration information
* for a single configuration option.
*
* Results:
* A TCL list, dynamically allocated. The caller is expected to
* arrange for this list to be freed eventually.
*
* Side effects:
* Memory is allocated.
*
*---------------------------------------------------------------------------
*/
static Tcl_Obj *
FormatConfigInfo(
Tcl_Interp *interp, /* Interpreter to use for things
* like floating-point precision. */
Tk_Window tkwin, /* Window corresponding to widget. */
Blt_ConfigSpec *sp, /* Pointer to information describing
* option. */
char *widgRec) /* Pointer to record holding current
* values of info for widget. */
{
Tcl_Obj *listObjPtr;
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
if (sp->switchName != NULL) {
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewStringObj(sp->switchName, -1));
} else {
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("", -1));
}
if (sp->dbName != NULL) {
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewStringObj(sp->dbName, -1));
} else {
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("", -1));
}
if (sp->type == BLT_CONFIG_SYNONYM) {
return listObjPtr;
}
if (sp->dbClass != NULL) {
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewStringObj(sp->dbClass, -1));
} else {
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("", -1));
}
if (sp->defValue != NULL) {
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewStringObj(sp->defValue, -1));
} else {
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewStringObj("", -1));
}
Tcl_ListObjAppendElement(interp, listObjPtr,
FormatConfigValue(interp, tkwin, sp, widgRec));
return listObjPtr;
}
/*
*---------------------------------------------------------------------------
*
* FindConfigSpec --
*
* Search through a table of configuration specs, looking for
* one that matches a given switchName.
*
* Results:
* The return value is a pointer to the matching entry, or NULL
* if nothing matched. In that case an error message is left
* in the interp's result.
*
* Side effects:
* None.
*
*---------------------------------------------------------------------------
*/
static Blt_ConfigSpec *
FindConfigSpec(
Tcl_Interp *interp, /* Used for reporting errors. */
Blt_ConfigSpec *specs, /* Pointer to table of configuration
* specifications for a widget. */
Tcl_Obj *objPtr, /* Name (suitable for use in a "config"
* command) identifying particular option. */
int needFlags, /* Flags that must be present in matching
* entry. */
int hateFlags) /* Flags that must NOT be present in
* matching entry. */
{
Blt_ConfigSpec *matchPtr; /* Matching spec, or NULL. */
Blt_ConfigSpec *sp;
const char *string;
char c; /* First character of current argument. */
int length;
string = Tcl_GetStringFromObj(objPtr, &length);
c = string[1];
matchPtr = NULL;
for (sp = specs; sp->type != BLT_CONFIG_END; sp++) {
if (sp->switchName == NULL) {
continue;
}
if ((sp->switchName[1] != c) ||
(strncmp(sp->switchName, string, length) != 0)) {
continue;
}
if (((sp->specFlags & needFlags) != needFlags) ||
(sp->specFlags & hateFlags)) {
continue;
}
if (sp->switchName[length] == 0) {
matchPtr = sp;
goto gotMatch;
}
if (matchPtr != NULL) {
if (interp != NULL) {
Tcl_AppendResult(interp, "ambiguous option \"", string, "\"",
(char *)NULL);
}
return (Blt_ConfigSpec *)NULL;
}
matchPtr = sp;
}
if (matchPtr == NULL) {
if (interp != NULL) {
Tcl_AppendResult(interp, "unknown option \"", string, "\"",
(char *)NULL);
}
return (Blt_ConfigSpec *)NULL;
}
/*
* Found a matching entry. If it's a synonym, then find the
* entry that it's a synonym for.
*/
gotMatch:
sp = matchPtr;
if (sp->type == BLT_CONFIG_SYNONYM) {
for (sp = specs; /*empty*/; sp++) {
if (sp->type == BLT_CONFIG_END) {
if (interp != NULL) {
Tcl_AppendResult(interp,
"couldn't find synonym for option \"", string, "\"",
(char *)NULL);
}
return (Blt_ConfigSpec *) NULL;
}
if ((sp->dbName == matchPtr->dbName) &&
(sp->type != BLT_CONFIG_SYNONYM) &&
((sp->specFlags & needFlags) == needFlags) &&
!(sp->specFlags & hateFlags)) {
break;
}
}
}
return sp;
}
/* Public routines */
/*
*---------------------------------------------------------------------------
*
* Blt_ConfigureWidgetFromObj --
*
* Process command-line options and database options to
* fill in fields of a widget record with resources and
* other parameters.
*
* Results:
* A standard TCL return value. In case of an error,
* the interp's result will hold an error message.
*
* Side effects:
* The fields of widgRec get filled in with information
* from argc/argv and the option database. Old information
* in widgRec's fields gets recycled.
*
*---------------------------------------------------------------------------
*/
int
Blt_ConfigureWidgetFromObj(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tk_Window tkwin, /* Window containing widget (needed to
* set up X resources). */
Blt_ConfigSpec *specs, /* Describes legal options. */
int objc, /* Number of elements in argv. */
Tcl_Obj *const *objv, /* Command-line options. */
char *widgRec, /* Record whose fields are to be
* modified. Values must be properly
* initialized. */
int flags) /* Used to specify additional flags
* that must be present in config specs
* for them to be considered. Also,
* may have BLT_CONFIG_OBJV_ONLY set. */
{
Blt_ConfigSpec *sp;
int needFlags; /* Specs must contain this set of flags
* or else they are not considered. */
int hateFlags; /* If a spec contains any bits here, it's
* not considered. */
int result;
if (tkwin == NULL) {
/*
* Either we're not really in Tk, or the main window was destroyed and
* we're on our way out of the application
*/
Tcl_AppendResult(interp, "NULL main window", (char *)NULL);
return TCL_ERROR;
}
needFlags = flags & ~(BLT_CONFIG_USER_BIT - 1);
if (Tk_Depth(tkwin) <= 1) {
hateFlags = BLT_CONFIG_COLOR_ONLY;
} else {
hateFlags = BLT_CONFIG_MONO_ONLY;
}
/*
* Pass one: scan through all the option specs, replacing strings
* with Tk_Uid structs (if this hasn't been done already) and
* clearing the BLT_CONFIG_OPTION_SPECIFIED flags.
*/
for (sp = specs; sp->type != BLT_CONFIG_END; sp++) {
if (!(sp->specFlags & INIT) && (sp->switchName != NULL)) {
if (sp->dbName != NULL) {
sp->dbName = Tk_GetUid(sp->dbName);
}
if (sp->dbClass != NULL) {
sp->dbClass = Tk_GetUid(sp->dbClass);
}
if (sp->defValue != NULL) {
sp->defValue = Tk_GetUid(sp->defValue);
}
}
sp->specFlags = (sp->specFlags & ~BLT_CONFIG_OPTION_SPECIFIED) | INIT;
}
/*
* Pass two: scan through all of the arguments, processing those
* that match entries in the specs.
*/
while (objc > 0) {
sp = FindConfigSpec(interp, specs, objv[0], needFlags, hateFlags);
if (sp == NULL) {
return TCL_ERROR;
}
/* Process the entry. */
if (objc < 2) {
Tcl_AppendResult(interp, "value for \"", Tcl_GetString(objv[0]),
"\" missing", (char *)NULL);
return TCL_ERROR;
}
if (DoConfig(interp, tkwin, sp, objv[1], widgRec) != TCL_OK) {
char msg[100];
sprintf_s(msg, 100, "\n (processing \"%.40s\" option)",
sp->switchName);
Tcl_AddErrorInfo(interp, msg);
return TCL_ERROR;
}
sp->specFlags |= BLT_CONFIG_OPTION_SPECIFIED;
objc -= 2, objv += 2;
}
/*
* Pass three: scan through all of the specs again; if no
* command-line argument matched a spec, then check for info
* in the option database. If there was nothing in the
* database, then use the default.
*/
if ((flags & BLT_CONFIG_OBJV_ONLY) == 0) {
Tcl_Obj *objPtr;
for (sp = specs; sp->type != BLT_CONFIG_END; sp++) {
if ((sp->specFlags & BLT_CONFIG_OPTION_SPECIFIED) ||
(sp->switchName == NULL) || (sp->type == BLT_CONFIG_SYNONYM)) {
continue;
}
if (((sp->specFlags & needFlags) != needFlags) ||
(sp->specFlags & hateFlags)) {
continue;
}
objPtr = NULL;
if (sp->dbName != NULL) {
Tk_Uid value;
/* If a resource name was specified, check if there's
* also a value was associated with it. This
* overrides the default value. */
value = Tk_GetOption(tkwin, sp->dbName, sp->dbClass);
if (value != NULL) {
objPtr = Tcl_NewStringObj(value, -1);
}
}
if (objPtr != NULL) {
Tcl_IncrRefCount(objPtr);
result = DoConfig(interp, tkwin, sp, objPtr, widgRec);
Tcl_DecrRefCount(objPtr);
if (result != TCL_OK) {
char msg[200];
sprintf_s(msg, 200,
"\n (%s \"%.50s\" in widget \"%.50s\")",
"database entry for", sp->dbName, Tk_PathName(tkwin));
Tcl_AddErrorInfo(interp, msg);
return TCL_ERROR;
}
} else if ((sp->defValue != NULL) &&
((sp->specFlags & BLT_CONFIG_DONT_SET_DEFAULT) == 0)) {
/* No resource value is found, use the default value. */
objPtr = Tcl_NewStringObj(sp->defValue, -1);
Tcl_IncrRefCount(objPtr);
result = DoConfig(interp, tkwin, sp, objPtr, widgRec);
Tcl_DecrRefCount(objPtr);
if (result != TCL_OK) {
char msg[200];
sprintf_s(msg, 200,
"\n (%s \"%.50s\" in widget \"%.50s\")",
"default value for", sp->dbName, Tk_PathName(tkwin));
Tcl_AddErrorInfo(interp, msg);
return TCL_ERROR;
}
}
}
}
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_ConfigureInfoFromObj --
*
* Return information about the configuration options
* for a window, and their current values.
*
* Results:
* Always returns TCL_OK. The interp's result will be modified
* hold a description of either a single configuration option
* available for "widgRec" via "specs", or all the configuration
* options available. In the "all" case, the result will
* available for "widgRec" via "specs". The result will
* be a list, each of whose entries describes one option.
* Each entry will itself be a list containing the option's
* name for use on command lines, database name, database
* class, default value, and current value (empty string
* if none). For options that are synonyms, the list will
* contain only two values: name and synonym name. If the
* "name" argument is non-NULL, then the only information
* returned is that for the named argument (i.e. the corresponding
* entry in the overall list is returned).
*
* Side effects:
* None.
*
*---------------------------------------------------------------------------
*/
int
Blt_ConfigureInfoFromObj(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tk_Window tkwin, /* Window corresponding to widgRec. */
Blt_ConfigSpec *specs, /* Describes legal options. */
char *widgRec, /* Record whose fields contain current
* values for options. */
Tcl_Obj *objPtr, /* If non-NULL, indicates a single option
* whose info is to be returned. Otherwise
* info is returned for all options. */
int flags) /* Used to specify additional flags
* that must be present in config specs
* for them to be considered. */
{
Blt_ConfigSpec *sp;
Tcl_Obj *listObjPtr, *valueObjPtr;
const char *string;
int needFlags, hateFlags;
needFlags = flags & ~(BLT_CONFIG_USER_BIT - 1);
if (Tk_Depth(tkwin) <= 1) {
hateFlags = BLT_CONFIG_COLOR_ONLY;
} else {
hateFlags = BLT_CONFIG_MONO_ONLY;
}
/*
* If information is only wanted for a single configuration
* spec, then handle that one spec specially.
*/
Tcl_SetResult(interp, (char *)NULL, TCL_STATIC);
if (objPtr != NULL) {
sp = FindConfigSpec(interp, specs, objPtr, needFlags, hateFlags);
if (sp == NULL) {
return TCL_ERROR;
}
valueObjPtr = FormatConfigInfo(interp, tkwin, sp, widgRec);
Tcl_SetObjResult(interp, valueObjPtr);
return TCL_OK;
}
/*
* Loop through all the specs, creating a big list with all
* their information.
*/
string = NULL; /* Suppress compiler warning. */
if (objPtr != NULL) {
string = Tcl_GetString(objPtr);
}
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
for (sp = specs; sp->type != BLT_CONFIG_END; sp++) {
if ((objPtr != NULL) && (sp->switchName != string)) {
continue;
}
if (((sp->specFlags & needFlags) != needFlags) ||
(sp->specFlags & hateFlags)) {
continue;
}
if (sp->switchName == NULL) {
continue;
}
valueObjPtr = FormatConfigInfo(interp, tkwin, sp, widgRec);
Tcl_ListObjAppendElement(interp, listObjPtr, valueObjPtr);
}
Tcl_SetObjResult(interp, listObjPtr);
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_ConfigureValueFromObj --
*
* This procedure returns the current value of a configuration
* option for a widget.
*
* Results:
* The return value is a standard TCL completion code (TCL_OK or
* TCL_ERROR). The interp's result will be set to hold either the value
* of the option given by objPtr (if TCL_OK is returned) or
* an error message (if TCL_ERROR is returned).
*
* Side effects:
* None.
*
*---------------------------------------------------------------------------
*/
int
Blt_ConfigureValueFromObj(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tk_Window tkwin, /* Window corresponding to widgRec. */
Blt_ConfigSpec *specs, /* Describes legal options. */
char *widgRec, /* Record whose fields contain current
* values for options. */
Tcl_Obj *objPtr, /* Gives the command-line name for the
* option whose value is to be returned. */
int flags) /* Used to specify additional flags
* that must be present in config specs
* for them to be considered. */
{
Blt_ConfigSpec *sp;
int needFlags, hateFlags;
needFlags = flags & ~(BLT_CONFIG_USER_BIT - 1);
if (Tk_Depth(tkwin) <= 1) {
hateFlags = BLT_CONFIG_COLOR_ONLY;
} else {
hateFlags = BLT_CONFIG_MONO_ONLY;
}
sp = FindConfigSpec(interp, specs, objPtr, needFlags, hateFlags);
if (sp == NULL) {
return TCL_ERROR;
}
objPtr = FormatConfigValue(interp, tkwin, sp, widgRec);
Tcl_SetObjResult(interp, objPtr);
return TCL_OK;
}
/*
*---------------------------------------------------------------------------
*
* Blt_FreeOptions --
*
* Free up all resources associated with configuration options.
*
* Results:
* None.
*
* Side effects:
* Any resource in widgRec that is controlled by a configuration
* option (e.g. a Tk_3DBorder or XColor) is freed in the appropriate
* fashion.
*
*---------------------------------------------------------------------------
*/
void
Blt_FreeOptions(
Blt_ConfigSpec *specs, /* Describes legal options. */
char *widgRec, /* Record whose fields contain current
* values for options. */
Display *display, /* X display; needed for freeing some
* resources. */
int needFlags) /* Used to specify additional flags
* that must be present in config specs
* for them to be considered. */
{
Blt_ConfigSpec *sp;
for (sp = specs; sp->type != BLT_CONFIG_END; sp++) {
char *ptr;
if ((sp->specFlags & needFlags) != needFlags) {
continue;
}
ptr = widgRec + sp->offset;
switch (sp->type) {
case BLT_CONFIG_STRING:
if (*((char **) ptr) != NULL) {
free(*((char **) ptr));
*((char **) ptr) = NULL;
}
break;
case BLT_CONFIG_COLOR:
if (*((XColor **) ptr) != NULL) {
Tk_FreeColor(*((XColor **) ptr));
*((XColor **) ptr) = NULL;
}
break;
case BLT_CONFIG_FONT:
if (*((Blt_Font *) ptr) != None) {
Blt_FreeFont(*((Blt_Font *) ptr));
*((Blt_Font *) ptr) = NULL;
}
break;
case BLT_CONFIG_TK_FONT:
if (*((Tk_Font *) ptr) != None) {
Tk_FreeFont(*((Tk_Font *) ptr));
*((Tk_Font *) ptr) = NULL;
}
break;
case BLT_CONFIG_BITMAP:
if (*((Pixmap *) ptr) != None) {
Tk_FreeBitmap(display, *((Pixmap *) ptr));
*((Pixmap *) ptr) = None;
}
break;
case BLT_CONFIG_BORDER:
if (*((Tk_3DBorder *) ptr) != NULL) {
Tk_Free3DBorder(*((Tk_3DBorder *) ptr));
*((Tk_3DBorder *) ptr) = NULL;
}
break;
case BLT_CONFIG_CURSOR:
case BLT_CONFIG_ACTIVE_CURSOR:
if (*((Tk_Cursor *) ptr) != None) {
Tk_FreeCursor(display, *((Tk_Cursor *) ptr));
*((Tk_Cursor *) ptr) = None;
}
break;
case BLT_CONFIG_OBJ:
if (*(Tcl_Obj **)ptr != NULL) {
Tcl_DecrRefCount(*(Tcl_Obj **)ptr);
*(Tcl_Obj **)ptr = NULL;
}
break;
case BLT_CONFIG_LIST:
if (*((char ***) ptr) != NULL) {
Tcl_Free((void*)(*((char ***) ptr)));
*((char ***) ptr) = NULL;
}
break;
case BLT_CONFIG_UID:
if (*(Blt_Uid *)ptr != NULL) {
Blt_FreeUid(*(Blt_Uid *)ptr);
*(Blt_Uid *)ptr = NULL;
}
break;
case BLT_CONFIG_BACKGROUND:
if (*((Blt_Background *)ptr) != NULL) {
Blt_FreeBackground(*((Blt_Background *)ptr));
*((Blt_Background *)ptr) = NULL;
}
break;
case BLT_CONFIG_CUSTOM:
if ((sp->customPtr->freeProc != NULL) && (*(char **)ptr != NULL)) {
(*sp->customPtr->freeProc)(sp->customPtr->clientData,
display, widgRec, sp->offset);
}
break;
}
}
}
/*
*---------------------------------------------------------------------------
*
* Blt_ConfigModified --
*
* Given the configuration specifications and one or more option
* patterns (terminated by a NULL), indicate if any of the matching
* configuration options has been reset.
*
* Results:
* Returns 1 if one of the options has changed, 0 otherwise.
*
*---------------------------------------------------------------------------
*/
int
Blt_ConfigModified TCL_VARARGS_DEF(Blt_ConfigSpec *, arg1)
{
va_list argList;
Blt_ConfigSpec *specs;
Blt_ConfigSpec *sp;
const char *option;
specs = TCL_VARARGS_START(Blt_ConfigSpec *, arg1, argList);
while ((option = va_arg(argList, const char *)) != NULL) {
for (sp = specs; sp->type != BLT_CONFIG_END; sp++) {
if ((Tcl_StringMatch(sp->switchName, option)) &&
(sp->specFlags & BLT_CONFIG_OPTION_SPECIFIED)) {
va_end(argList);
return 1;
}
}
}
va_end(argList);
return 0;
}
/*
*---------------------------------------------------------------------------
*
* Blt_ConfigureComponentFromObj --
*
* Configures a component of a widget. This is useful for
* widgets that have multiple components which aren't uniquely
* identified by a Tk_Window. It allows us, for example, set
* resources for axes of the graph widget. The graph really has
* only one window, but its convenient to specify components in a
* hierarchy of options.
*
* *graph.x.logScale yes
* *graph.Axis.logScale yes
* *graph.temperature.scaleSymbols yes
* *graph.Element.scaleSymbols yes
*
* This is really a hack to work around the limitations of the Tk
* resource database. It creates a temporary window, needed to
* call Tk_ConfigureWidget, using the name of the component.
*
* Results:
* A standard TCL result.
*
* Side Effects:
* A temporary window is created merely to pass to Tk_ConfigureWidget.
*
*---------------------------------------------------------------------------
*/
int
Blt_ConfigureComponentFromObj(
Tcl_Interp *interp,
Tk_Window parent, /* Window to associate with component */
const char *name, /* Name of component */
const char *className,
Blt_ConfigSpec *sp,
int objc,
Tcl_Obj *const *objv,
char *widgRec,
int flags)
{
Tk_Window tkwin;
int result;
char *tmpName;
int isTemporary = FALSE;
tmpName = Blt_Strdup(name);
/* Window name can't start with an upper case letter */
tmpName[0] = tolower(name[0]);
/*
* Create component if a child window by the component's name
* doesn't already exist.
*/
tkwin = Blt_FindChild(parent, tmpName);
if (tkwin == NULL) {
tkwin = Tk_CreateWindow(interp, parent, tmpName, (char *)NULL);
isTemporary = TRUE;
}
if (tkwin == NULL) {
Tcl_AppendResult(interp, "can't find window in \"",
Tk_PathName(parent), "\"", (char *)NULL);
return TCL_ERROR;
}
assert(Tk_Depth(tkwin) == Tk_Depth(parent));
free(tmpName);
Tk_SetClass(tkwin, className);
result = Blt_ConfigureWidgetFromObj(interp, tkwin, sp, objc, objv, widgRec,
flags);
if (isTemporary) {
Tk_DestroyWindow(tkwin);
}
return result;
}
/*
*---------------------------------------------------------------------------
*
* Blt_ObjIsOption --
*
* Indicates whether objPtr is a valid configuration option
* such as -background.
*
* Results:
* Returns 1 is a matching option is found and 0 otherwise.
*
*---------------------------------------------------------------------------
*/
int
Blt_ObjIsOption(
Blt_ConfigSpec *specs, /* Describes legal options. */
Tcl_Obj *objPtr, /* Command-line option name. */
int flags) /* Used to specify additional flags
* that must be present in config specs
* for them to be considered. Also,
* may have BLT_CONFIG_OBJV_ONLY set. */
{
Blt_ConfigSpec *sp;
int needFlags; /* Specs must contain this set of flags
* or else they are not considered. */
needFlags = flags & ~(BLT_CONFIG_USER_BIT - 1);
sp = FindConfigSpec((Tcl_Interp *)NULL, specs, objPtr, needFlags, 0);
return (sp != NULL);
}
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