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authordgp <dgp@users.sourceforge.net>2016-06-22 18:19:50 (GMT)
committerdgp <dgp@users.sourceforge.net>2016-06-22 18:19:50 (GMT)
commit0b48d22ae0136371b97454822750335beba7b8e9 (patch)
treebfa48837bcd4bb9161d22db39f93bc1bb15dc776 /generic/tkWindow.c
parentb999ae0084ced84f3e315ff9335ebc570d3892c7 (diff)
parentd5db310e939011b74dead2d218c7b3e7f4b05415 (diff)
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Modernize Tk_Init() to use Tcl 8.6 features.
Diffstat (limited to 'generic/tkWindow.c')
-rw-r--r--generic/tkWindow.c309
1 files changed, 140 insertions, 169 deletions
diff --git a/generic/tkWindow.c b/generic/tkWindow.c
index 95e431c..81ea0e5 100644
--- a/generic/tkWindow.c
+++ b/generic/tkWindow.c
@@ -54,12 +54,6 @@ typedef struct ThreadSpecificData {
static Tcl_ThreadDataKey dataKey;
/*
- * The Mutex below is used to lock access to the Tk_Uid structs above.
- */
-
-TCL_DECLARE_MUTEX(windowMutex)
-
-/*
* Default values for "changes" and "atts" fields of TkWindows. Note that Tk
* always requests all events for all windows, except StructureNotify events
* on internal windows: these events are generated internally.
@@ -206,40 +200,6 @@ static const TkCmd commands[] = {
};
/*
- * The variables and table below are used to parse arguments from the "argv"
- * variable in Tk_Init.
- */
-
-static int synchronize = 0;
-static char *name = NULL;
-static char *display = NULL;
-static char *geometry = NULL;
-static char *colormap = NULL;
-static char *use = NULL;
-static char *visual = NULL;
-static int rest = 0;
-
-static const Tk_ArgvInfo argTable[] = {
- {"-colormap", TK_ARGV_STRING, NULL, (char *) &colormap,
- "Colormap for main window"},
- {"-display", TK_ARGV_STRING, NULL, (char *) &display,
- "Display to use"},
- {"-geometry", TK_ARGV_STRING, NULL, (char *) &geometry,
- "Initial geometry for window"},
- {"-name", TK_ARGV_STRING, NULL, (char *) &name,
- "Name to use for application"},
- {"-sync", TK_ARGV_CONSTANT, (char *) 1, (char *) &synchronize,
- "Use synchronous mode for display server"},
- {"-visual", TK_ARGV_STRING, NULL, (char *) &visual,
- "Visual for main window"},
- {"-use", TK_ARGV_STRING, NULL, (char *) &use,
- "Id of window in which to embed application"},
- {"--", TK_ARGV_REST, (char *) 1, (char *) &rest,
- "Pass all remaining arguments through to script"},
- {NULL, TK_ARGV_END, NULL, NULL, NULL}
-};
-
-/*
* Forward declarations to functions defined later in this file:
*/
@@ -3035,16 +2995,51 @@ MODULE_SCOPE const TkStubs tkStubs;
*/
static int
+CopyValue(
+ ClientData dummy,
+ Tcl_Obj *objPtr,
+ void *dstPtr)
+{
+ *(Tcl_Obj **)dstPtr = objPtr;
+ return 1;
+}
+
+static int
Initialize(
Tcl_Interp *interp) /* Interpreter to initialize. */
{
- char *p;
- int argc, code;
- const char **argv;
- const char *args[20];
- const char *argString = NULL;
- Tcl_DString class;
+ int code = TCL_OK;
ThreadSpecificData *tsdPtr;
+ Tcl_Obj *value = NULL;
+ Tcl_Obj *cmd;
+
+ Tcl_Obj *nameObj = NULL;
+ Tcl_Obj *classObj = NULL;
+ Tcl_Obj *displayObj = NULL;
+ Tcl_Obj *colorMapObj = NULL;
+ Tcl_Obj *useObj = NULL;
+ Tcl_Obj *visualObj = NULL;
+ Tcl_Obj *geometryObj = NULL;
+
+ int sync = 0;
+
+ const Tcl_ArgvInfo table[] = {
+ {TCL_ARGV_CONSTANT, "-sync", INT2PTR(1), &sync,
+ "Use synchronous mode for display server", NULL},
+ {TCL_ARGV_FUNC, "-colormap", CopyValue, &colorMapObj,
+ "Colormap for main window", NULL},
+ {TCL_ARGV_FUNC, "-display", CopyValue, &displayObj,
+ "Display to use", NULL},
+ {TCL_ARGV_FUNC, "-geometry", CopyValue, &geometryObj,
+ "Initial geometry for window", NULL},
+ {TCL_ARGV_FUNC, "-name", CopyValue, &nameObj,
+ "Name to use for application", NULL},
+ {TCL_ARGV_FUNC, "-visual", CopyValue, &visualObj,
+ "Visual for main window", NULL},
+ {TCL_ARGV_FUNC, "-use", CopyValue, &useObj,
+ "Id of window in which to embed application", NULL},
+ TCL_ARGV_AUTO_REST, TCL_ARGV_AUTO_HELP, TCL_ARGV_TABLE_END
+ };
/*
* Ensure that we are getting a compatible version of Tcl.
@@ -3063,23 +3058,6 @@ Initialize(
tsdPtr = Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
/*
- * Start by initializing all the static variables to default acceptable
- * values so that no information is leaked from a previous run of this
- * code.
- */
-
- Tcl_MutexLock(&windowMutex);
- synchronize = 0;
- name = NULL;
- display = NULL;
- geometry = NULL;
- colormap = NULL;
- use = NULL;
- visual = NULL;
- rest = 0;
- argv = NULL;
-
- /*
* We start by resetting the result because it might not be clean.
*/
@@ -3091,8 +3069,6 @@ Initialize(
* master.
*/
- Tcl_DString ds;
-
/*
* Step 1 : find the master and construct the interp name (could be a
* function if new APIs were ok). We could also construct the path
@@ -3102,18 +3078,13 @@ Initialize(
Tcl_Interp *master = interp;
- while (1) {
+ while (Tcl_IsSafe(master)) {
master = Tcl_GetMaster(master);
if (master == NULL) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"no controlling master interpreter", -1));
Tcl_SetErrorCode(interp, "TK", "SAFE", "NO_MASTER", NULL);
- code = TCL_ERROR;
- goto done;
- }
- if (!Tcl_IsSafe(master)) {
- /* Found the trusted master. */
- break;
+ return TCL_ERROR;
}
}
@@ -3123,39 +3094,30 @@ Initialize(
code = Tcl_GetInterpPath(master, interp);
if (code != TCL_OK) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "error in Tcl_GetInterpPath", -1));
- Tcl_SetErrorCode(interp, "TK", "SAFE", "FAILED", NULL);
- goto done;
+ Tcl_Panic("Tcl_GetInterpPath broken!");
}
/*
- * Build the string to eval.
+ * Build the command to eval in trusted master.
*/
- Tcl_DStringInit(&ds);
- Tcl_DStringAppendElement(&ds, "::safe::TkInit");
- Tcl_DStringAppendElement(&ds, Tcl_GetString(Tcl_GetObjResult(master)));
-
+ cmd = Tcl_NewListObj(2, NULL);
+ Tcl_ListObjAppendElement(NULL, cmd,
+ Tcl_NewStringObj("::safe::TkInit", -1));
+ Tcl_ListObjAppendElement(NULL, cmd, Tcl_GetObjResult(master));
+
/*
* Step 2 : Eval in the master. The argument is the *reversed* interp
* path of the slave.
*/
- code = Tcl_EvalEx(master, Tcl_DStringValue(&ds), -1, 0);
+ Tcl_IncrRefCount(cmd);
+ code = Tcl_EvalObjEx(master, cmd, 0);
+ Tcl_DecrRefCount(cmd);
+ Tcl_TransferResult(master, code, interp);
if (code != TCL_OK) {
- /*
- * We might want to transfer the error message or not. We don't.
- * (No API to do it and maybe security reasons).
- */
-
- Tcl_DStringFree(&ds);
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "not allowed to start Tk by master's safe::TkInit", -1));
- Tcl_SetErrorCode(interp, "TK", "SAFE", "FAILED", NULL);
- goto done;
+ return code;
}
- Tcl_DStringFree(&ds);
/*
* Use the master's result as argv. Note: We don't use the Obj
@@ -3163,7 +3125,7 @@ Initialize(
* changing the code below.
*/
- argString = Tcl_GetString(Tcl_GetObjResult(master));
+ value = Tcl_GetObjResult(interp);
} else {
/*
* If there is an "argv" variable, get its value, extract out relevant
@@ -3171,50 +3133,67 @@ Initialize(
* that we used.
*/
- argString = Tcl_GetVar2(interp, "argv", NULL, TCL_GLOBAL_ONLY);
+ value = Tcl_GetVar2Ex(interp, "argv", NULL, TCL_GLOBAL_ONLY);
}
- if (argString != NULL) {
- char buffer[TCL_INTEGER_SPACE];
- if (Tcl_SplitList(interp, argString, &argc, &argv) != TCL_OK) {
- argError:
+ if (value) {
+ int objc;
+ Tcl_Obj **objv, **rest;
+ Tcl_Obj *parseList = Tcl_NewListObj(1, NULL);
+
+ Tcl_ListObjAppendElement(NULL, parseList, Tcl_NewObj());
+
+ Tcl_IncrRefCount(value);
+ if (TCL_OK != Tcl_ListObjAppendList(interp, parseList, value) ||
+ TCL_OK != Tcl_ListObjGetElements(NULL, parseList, &objc, &objv) ||
+ TCL_OK != Tcl_ParseArgsObjv(interp, table, &objc, objv, &rest)) {
Tcl_AddErrorInfo(interp,
"\n (processing arguments in argv variable)");
code = TCL_ERROR;
- goto done;
}
- if (Tk_ParseArgv(interp, (Tk_Window) NULL, &argc, argv,
- argTable, TK_ARGV_DONT_SKIP_FIRST_ARG|TK_ARGV_NO_DEFAULTS)
- != TCL_OK) {
- goto argError;
+ if (code == TCL_OK) {
+ Tcl_SetVar2Ex(interp, "argv", NULL,
+ Tcl_NewListObj(objc-1, rest+1), TCL_GLOBAL_ONLY);
+ Tcl_SetVar2Ex(interp, "argc", NULL,
+ Tcl_NewIntObj(objc-1), TCL_GLOBAL_ONLY);
+ ckfree(rest);
+ }
+ Tcl_DecrRefCount(parseList);
+ if (code != TCL_OK) {
+ goto done;
}
- p = Tcl_Merge(argc, argv);
- Tcl_SetVar2(interp, "argv", NULL, p, TCL_GLOBAL_ONLY);
- sprintf(buffer, "%d", argc);
- Tcl_SetVar2(interp, "argc", NULL, buffer, TCL_GLOBAL_ONLY);
- ckfree(p);
}
/*
* Figure out the application's name and class.
*/
- Tcl_DStringInit(&class);
- if (name == NULL) {
- int offset;
+ /*
+ * If we got no -name argument, fetch from TkpGetAppName().
+ */
- TkpGetAppName(interp, &class);
- offset = Tcl_DStringLength(&class)+1;
- Tcl_DStringSetLength(&class, offset);
- Tcl_DStringAppend(&class, Tcl_DStringValue(&class), offset-1);
- name = Tcl_DStringValue(&class) + offset;
- } else {
- Tcl_DStringAppend(&class, name, -1);
+ if (nameObj == NULL) {
+ Tcl_DString nameDS;
+
+ Tcl_DStringInit(&nameDS);
+ TkpGetAppName(interp, &nameDS);
+ nameObj = Tcl_NewStringObj(Tcl_DStringValue(&nameDS),
+ Tcl_DStringLength(&nameDS));
+ Tcl_DStringFree(&nameDS);
}
- p = Tcl_DStringValue(&class);
- if (*p) {
- Tcl_UtfToTitle(p);
+ /*
+ * The -class argument is always the ToTitle of the -name
+ */
+
+ {
+ int numBytes;
+ const char *bytes = Tcl_GetStringFromObj(nameObj, &numBytes);
+
+ classObj = Tcl_NewStringObj(bytes, numBytes);
+
+ numBytes = Tcl_UtfToTitle(Tcl_GetString(classObj));
+ Tcl_SetObjLength(classObj, numBytes);
}
/*
@@ -3222,15 +3201,14 @@ Initialize(
* information parsed from argv, if any.
*/
- args[0] = "toplevel";
- args[1] = ".";
- args[2] = "-class";
- args[3] = Tcl_DStringValue(&class);
- argc = 4;
- if (display != NULL) {
- args[argc] = "-screen";
- args[argc+1] = display;
- argc += 2;
+ cmd = Tcl_NewStringObj("toplevel . -class", -1);
+
+ Tcl_ListObjAppendElement(NULL, cmd, classObj);
+ classObj = NULL;
+
+ if (displayObj) {
+ Tcl_ListObjAppendElement(NULL, cmd, Tcl_NewStringObj("-screen", -1));
+ Tcl_ListObjAppendElement(NULL, cmd, displayObj);
/*
* If this is the first application for this process, save the display
@@ -3239,36 +3217,35 @@ Initialize(
*/
if (tsdPtr->numMainWindows == 0) {
- Tcl_SetVar2(interp, "env", "DISPLAY", display, TCL_GLOBAL_ONLY);
+ Tcl_SetVar2Ex(interp, "env", "DISPLAY", displayObj, TCL_GLOBAL_ONLY);
}
+ displayObj = NULL;
}
- if (colormap != NULL) {
- args[argc] = "-colormap";
- args[argc+1] = colormap;
- argc += 2;
- colormap = NULL;
+ if (colorMapObj) {
+ Tcl_ListObjAppendElement(NULL, cmd, Tcl_NewStringObj("-colormap", -1));
+ Tcl_ListObjAppendElement(NULL, cmd, colorMapObj);
+ colorMapObj = NULL;
}
- if (use != NULL) {
- args[argc] = "-use";
- args[argc+1] = use;
- argc += 2;
- use = NULL;
+ if (useObj) {
+ Tcl_ListObjAppendElement(NULL, cmd, Tcl_NewStringObj("-use", -1));
+ Tcl_ListObjAppendElement(NULL, cmd, useObj);
+ useObj = NULL;
}
- if (visual != NULL) {
- args[argc] = "-visual";
- args[argc+1] = visual;
- argc += 2;
- visual = NULL;
+ if (visualObj) {
+ Tcl_ListObjAppendElement(NULL, cmd, Tcl_NewStringObj("-visual", -1));
+ Tcl_ListObjAppendElement(NULL, cmd, visualObj);
+ visualObj = NULL;
}
- args[argc] = NULL;
- code = TkCreateFrame(NULL, interp, argc, args, 1, name);
- Tcl_DStringFree(&class);
+ code = TkListCreateFrame(NULL, interp, cmd, 1, nameObj);
+
+ Tcl_DecrRefCount(cmd);
+
if (code != TCL_OK) {
goto done;
}
Tcl_ResetResult(interp);
- if (synchronize) {
+ if (sync) {
XSynchronize(Tk_Display(Tk_MainWindow(interp)), True);
}
@@ -3277,19 +3254,19 @@ Initialize(
* geometry into the "geometry" variable.
*/
- if (geometry != NULL) {
- Tcl_DString buf;
+ if (geometryObj) {
+
+ Tcl_SetVar2Ex(interp, "geometry", NULL, geometryObj, TCL_GLOBAL_ONLY);
- Tcl_SetVar2(interp, "geometry", NULL, geometry, TCL_GLOBAL_ONLY);
- Tcl_DStringInit(&buf);
- Tcl_DStringAppend(&buf, "wm geometry . ", -1);
- Tcl_DStringAppend(&buf, geometry, -1);
- code = Tcl_EvalEx(interp, Tcl_DStringValue(&buf), -1, 0);
- Tcl_DStringFree(&buf);
+ cmd = Tcl_NewStringObj("wm geometry .", -1);
+ Tcl_ListObjAppendElement(NULL, cmd, geometryObj);
+ Tcl_IncrRefCount(cmd);
+ code = Tcl_EvalObjEx(interp, cmd, 0);
+ Tcl_DecrRefCount(cmd);
+ geometryObj = NULL;
if (code != TCL_OK) {
goto done;
}
- geometry = NULL;
}
/*
@@ -3326,10 +3303,6 @@ Initialize(
* console window interpreter.
*/
- Tcl_MutexUnlock(&windowMutex);
- if (argv != NULL) {
- ckfree(argv);
- }
code = TkpInit(interp);
if (code == TCL_OK) {
@@ -3362,12 +3335,10 @@ tkInit", -1, 0);
TkCreateThreadExitHandler(DeleteWindowsExitProc, tsdPtr);
}
- return code;
-
done:
- Tcl_MutexUnlock(&windowMutex);
- if (argv != NULL) {
- ckfree(argv);
+ if (value) {
+ Tcl_DecrRefCount(value);
+ value = NULL;
}
return code;
}