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/*
* tkMacInit.c --
*
* This file contains Mac-specific interpreter initialization
* functions.
*
* Copyright (c) 1995-1997 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: @(#) $Id$
*/
#include <Resources.h>
#include <Files.h>
#include <TextUtils.h>
#include <Strings.h>
#include "tkInt.h"
#include "tkMacInt.h"
#include "tclMacInt.h"
/*
* The following global is used by various parts of Tk to access
* information in the global qd variable. It is provided as a pointer
* in the AppInit because we don't assume that Tk is running as an
* application. For example, Tk could be a plugin and may not have
* access to the qd variable. This mechanism provides a way for the
* container application to give a pointer to the qd variable.
*/
QDGlobalsPtr tcl_macQdPtr = NULL;
/*
*----------------------------------------------------------------------
*
* TkpInit --
*
* Performs Mac-specific interpreter initialization related to the
* tk_library variable.
*
* Results:
* A standard Tcl completion code (TCL_OK or TCL_ERROR). Also
* leaves information in the interp's result.
*
* Side effects:
* Sets "tk_library" Tcl variable, runs initialization scripts
* for Tk.
*
*----------------------------------------------------------------------
*/
int
TkpInit(
Tcl_Interp *interp) /* Interp to initialize. */
{
CONST char *libDir, *tempPath;
Tcl_DString path, ds;
int result;
static char initCmd[] = "if {[info proc tkInit]==\"\"} {\n\
proc tkInit {} {\n\
proc sourcePath {file} {\n\
global tk_library\n\
if {[catch {uplevel #0 [list source [file join $tk_library $file.tcl]]}] == 0} {\n\
return\n\
}\n\
if {[catch {uplevel #0 [list source -rsrc $file]}] == 0} {\n\
return\n\
}\n\
rename sourcePath {}\n\
set msg \"Can't find $file resource or a usable $file.tcl file\"\n\
append msg \" perhaps you need to install Tk or set your\"\n\
append msg \" TK_LIBRARY environment variable?\"\n\
error $msg\n\
}\n\
sourcePath tk\n\
sourcePath dialog\n\
sourcePath focus\n\
sourcePath optMenu\n\
sourcePath palette\n\
sourcePath tearoff\n\
if {[catch {package require msgcat}]} {sourcePath msgcat}\n\
sourcePath bgerror\n\
sourcePath msgbox\n\
sourcePath comdlg\n\
rename sourcePath {}\n\
rename tkInit {}\n\
} }\n\
tkInit";
Tcl_DStringInit(&path);
Tcl_DStringInit(&ds);
/*
* The tk_library path can be found in several places. Here is the order
* in which the are searched.
* 1) the variable may already exist
* 2) env array
* 3) System Folder:Extensions:Tool Command Language:
*/
libDir = Tcl_GetVar(interp, "tk_library", TCL_GLOBAL_ONLY);
if (libDir == NULL) {
libDir = TclGetEnv("TK_LIBRARY", &ds);
}
if ((libDir == NULL) || (libDir[0] == '\0')) {
tempPath = TclGetEnv("EXT_FOLDER", &ds);
if ((tempPath != NULL) && (tempPath[0] != '\0')) {
Tcl_DString libPath;
CONST char *argv[3];
argv[0] = tempPath;
argv[1] = "Tool Command Language";
Tcl_DStringInit(&libPath);
Tcl_DStringAppend(&libPath, "tk", -1);
argv[2] = Tcl_DStringAppend(&libPath, TK_VERSION, -1);
libDir = Tcl_JoinPath(3, argv, &path);
Tcl_DStringFree(&libPath);
}
}
if (libDir == NULL) {
libDir = "no library";
}
/*
* Assign path to the global Tcl variable tcl_library.
*/
Tcl_SetVar(interp, "tk_library", libDir, TCL_GLOBAL_ONLY);
Tcl_DStringFree(&path);
Tcl_DStringFree(&ds);
result = Tcl_Eval(interp, initCmd);
return result;
}
/*
*----------------------------------------------------------------------
*
* TkpGetAppName --
*
* Retrieves the name of the current application from a platform
* specific location. On the Macintosh we look to see if the
* App Name is specified in a resource. If not, the application
* name is the root of the tail of the path contained in the tcl
* variable argv0.
*
* Results:
* Returns the application name in the given Tcl_DString.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkpGetAppName(
Tcl_Interp *interp, /* The main interpreter. */
Tcl_DString *namePtr) /* A previously initialized Tcl_DString. */
{
int argc;
CONST char **argv = NULL, *name, *p;
int nameLength = -1;
Handle h = NULL;
h = GetNamedResource('STR ', "\pTk App Name");
if (h != NULL) {
HLock(h);
Tcl_DStringAppend(namePtr, (*h)+1, **h);
HUnlock(h);
ReleaseResource(h);
return;
}
name = Tcl_GetVar(interp, "argv0", TCL_GLOBAL_ONLY);
if (name != NULL) {
Tcl_SplitPath(name, &argc, &argv);
if (argc > 0) {
name = argv[argc-1];
p = strrchr(name, '.');
if (p != NULL) {
nameLength = p - name;
}
} else {
name = NULL;
}
}
if ((name == NULL) || (*name == 0) || (nameLength == 0)) {
name = "tk";
nameLength = -1;
}
Tcl_DStringAppend(namePtr, name, nameLength);
if (argv != NULL) {
ckfree((char *)argv);
}
}
/*
*----------------------------------------------------------------------
*
* TkpDisplayWarning --
*
* This routines is called from Tk_Main to display warning
* messages that occur during startup.
*
* Results:
* None.
*
* Side effects:
* Displays a message box.
*
*----------------------------------------------------------------------
*/
void
TkpDisplayWarning(
CONST char *msg, /* Message to be displayed. */
CONST char *title) /* Title of warning. */
{
Tcl_DString ds;
Tcl_DStringInit(&ds);
Tcl_DStringAppend(&ds, title, -1);
Tcl_DStringAppend(&ds, ": ", -1);
Tcl_DStringAppend(&ds, msg, -1);
panic(Tcl_DStringValue(&ds));
Tcl_DStringFree(&ds);
}
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