Rewrite to use an actual ensemble instead of a homebrew version.

1 files changed, 85 insertions, 124 deletions

diff --git a/win/tkWinGDI.c b/win/tkWinGDI.c
index 1b95eff..9f04187 100644
--- a/win/tkWinGDI.c
+++ b/win/tkWinGDI.c
@@ -38,10 +38,6 @@ typedef BOOL WINAPI (*DrawFunc) (
 	HDC, int, int, int, int, int, int, int, int); /* Arc, Chord, Pie. */
 #endif
 
-/* Main dispatcher for commands. */
-static int		TkWinGDI(ClientData clientData, Tcl_Interp *interp,
-			    int argc, const char **argv);
-
 /* Real functions. */
 static int		GdiArc(ClientData clientData, Tcl_Interp *interp,
 			    int argc, const char **argv);
@@ -127,11 +123,6 @@ static int		PrintClosePage(ClientData clientData,
 			    Tcl_Interp *interp, int argc,
 			    Tcl_Obj *const objv[]);
 
-static const char gdi_usage_message[] =
-    "::tk::print::_gdi [arc|characters|copybits|line|map|oval|"
-    "photo|polygon|rectangle|text|version]\n"
-    "\thdc parameters can be generated by the printer extension";
-
 /*
  * Global state.
  */
@@ -170,45 +161,6 @@ static const struct gdi_command {
 /*
  *----------------------------------------------------------------------
  *
- * TkWinGDI --
- *
- * 	Top-level routine for the ::tk::print::_gdi command.
- *
- * Results:
- *	It strips off the first two words of the command (::tk::print::_gdi
- *	subcommand) and dispatches to a subcommand implementation.
- *
- *----------------------------------------------------------------------
- */
-
-static int TkWinGDI(
-    ClientData clientData,
-    Tcl_Interp *interp,
-    int argc,
-    const char **argv)
-{
-    size_t i;
-    static const size_t numCommands =
-	    sizeof(gdi_commands) / sizeof(struct gdi_command);
-
-    /* EXACT command name check? REALLY? */
-
-    if (argc > 1 && strcmp(argv[0], "::tk::print::_gdi") == 0) {
-	for (i=0; i<numCommands; i++) {
-	    if (strcmp(argv[1], gdi_commands[i].command_string) == 0) {
-		return (*gdi_commands[i].command)(
-			clientData, interp, argc - 2, argv + 2);
-	    }
-	}
-    }
-
-    Tcl_AppendResult(interp, gdi_usage_message, NULL);
-    return TCL_ERROR;
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * GdiArc --
  *
  * 	Map canvas arcs to GDI context.
@@ -249,20 +201,20 @@ static int GdiArc(
     drawfunc = Pie;
 
     /* Verrrrrry simple for now.... */
-    if (argc < 5) {
+    if (argc < 6) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
 
     hDC = printDC;
 
-    x1 = atoi(argv[1]);
-    y1 = atoi(argv[2]);
-    x2 = atoi(argv[3]);
-    y2 = atoi(argv[4]);
+    x1 = atoi(argv[2]);
+    y1 = atoi(argv[3]);
+    x2 = atoi(argv[4]);
+    y2 = atoi(argv[5]);
 
-    argc -= 5;
-    argv += 5;
+    argc -= 6;
+    argv += 6;
     while (argc >= 2) {
 	if (strcmp(argv[0], "-extent") == 0) {
 	    extent = atof(argv[1]);
@@ -379,7 +331,8 @@ static int GdiBitmap(
     TCL_UNUSED(int),
     TCL_UNUSED(const char **))
 {
-    static const char usage_message[] = "::tk::print::_gdi bitmap hdc x y "
+    static const char usage_message[] =
+	"::tk::print::_gdi bitmap hdc x y "
 	"-anchor [center|n|e|s|w] -background color "
 	"-bitmap bitmap -foreground color\n"
 	"Not implemented yet. Sorry!";
@@ -471,7 +424,7 @@ static int GdiPhoto(
      */
 
     /* HDC is required. */
-    if (argc < 1) {
+    if (argc < 2) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
@@ -486,12 +439,12 @@ static int GdiPhoto(
     if ((GetDeviceCaps(dst, RASTERCAPS) & RC_STRETCHDIB) == 0) {
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		"::tk::print::_gdi photo not supported on device context (0x%s)",
-		argv[0]));
+		argv[1]));
 	return TCL_ERROR;
     }
 
     /* Parse the command line arguments. */
-    for (j = 1; j < argc; j++) {
+    for (j = 2; j < argc; j++) {
 	if (strcmp(argv[j], "-destination") == 0) {
 	    double x, y, w, h;
 	    int count = 0;
@@ -742,23 +695,24 @@ static int GdiLine(
     arrowshape[2] = 3;
 
     /* Verrrrrry simple for now.... */
-    if (argc < 5) {
+    if (argc < 6) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
 
     hDC = printDC;
 
-    if ((polypoints = (POINT *) Tcl_AttemptAlloc(argc * sizeof(POINT))) == 0) {
+    polypoints = (POINT *) Tcl_AttemptAlloc((argc - 1) * sizeof(POINT));
+    if (polypoints == 0) {
 	Tcl_AppendResult(interp, "Out of memory in GdiLine", NULL);
 	return TCL_ERROR;
     }
-    polypoints[0].x = atol(argv[1]);
-    polypoints[0].y = atol(argv[2]);
-    polypoints[1].x = atol(argv[3]);
-    polypoints[1].y = atol(argv[4]);
-    argc -= 5;
-    argv += 5;
+    polypoints[0].x = atol(argv[2]);
+    polypoints[0].y = atol(argv[3]);
+    polypoints[1].x = atol(argv[4]);
+    polypoints[1].y = atol(argv[5]);
+    argc -= 6;
+    argv += 6;
     npoly = 2;
 
     while (argc >= 2) {
@@ -1018,17 +972,17 @@ static int GdiOval(
     const char *dashdata = 0;
 
     /* Verrrrrry simple for now.... */
-    if (argc < 5) {
+    if (argc < 6) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
 
     hDC = printDC;
 
-    x1 = atol(argv[1]);
-    y1 = atol(argv[2]);
-    x2 = atol(argv[3]);
-    y2 = atol(argv[4]);
+    x1 = atol(argv[2]);
+    y1 = atol(argv[3]);
+    x2 = atol(argv[4]);
+    y2 = atol(argv[5]);
     if (x1 > x2) {
 	int x3 = x1;
 	x1 = x2;
@@ -1039,8 +993,8 @@ static int GdiOval(
 	y1 = y2;
 	y2 = y3;
     }
-    argc -= 5;
-    argv += 5;
+    argc -= 6;
+    argv += 6;
 
     while (argc > 0) {
 	/* Now handle any other arguments that occur. */
@@ -1140,24 +1094,25 @@ static int GdiPolygon(
     const char *dashdata = 0;
 
     /* Verrrrrry simple for now.... */
-    if (argc < 5) {
+    if (argc < 6) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
 
     hDC = printDC;
 
-    if ((polypoints = (POINT *) Tcl_AttemptAlloc(argc * sizeof(POINT))) == 0) {
+    polypoints = (POINT *) Tcl_AttemptAlloc((argc - 1) * sizeof(POINT));
+    if (polypoints == 0) {
 	/* TODO: unreachable */
 	Tcl_AppendResult(interp, "Out of memory in GdiLine", NULL);
 	return TCL_ERROR;
     }
-    polypoints[0].x = atol(argv[1]);
-    polypoints[0].y = atol(argv[2]);
-    polypoints[1].x = atol(argv[3]);
-    polypoints[1].y = atol(argv[4]);
-    argc -= 5;
-    argv += 5;
+    polypoints[0].x = atol(argv[2]);
+    polypoints[0].y = atol(argv[3]);
+    polypoints[1].x = atol(argv[4]);
+    polypoints[1].y = atol(argv[5]);
+    argc -= 6;
+    argv += 6;
     npoly = 2;
 
     while (argc >= 2) {
@@ -1304,17 +1259,17 @@ static int GdiRectangle(
     const char *dashdata = 0;
 
     /* Verrrrrry simple for now.... */
-    if (argc < 5) {
+    if (argc < 6) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
 
     hDC = printDC;
 
-    x1 = atol(argv[1]);
-    y1 = atol(argv[2]);
-    x2 = atol(argv[3]);
-    y2 = atol(argv[4]);
+    x1 = atol(argv[2]);
+    y1 = atol(argv[3]);
+    x2 = atol(argv[4]);
+    y2 = atol(argv[5]);
     if (x1 > x2) {
 	int x3 = x1;
 	x1 = x2;
@@ -1325,8 +1280,8 @@ static int GdiRectangle(
 	y1 = y2;
 	y2 = y3;
     }
-    argc -= 5;
-    argv += 5;
+    argc -= 6;
+    argv += 6;
 
     /* Now handle any other arguments that occur. */
     while (argc > 1) {
@@ -1429,15 +1384,15 @@ static int GdiCharWidths(
     int widths[256];
     int retval;
 
-    if (argc < 1) {
+    if (argc < 2) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
 
     hDC = printDC;
 
-    argc--;
-    argv++;
+    argc -= 2;
+    argv += 2;
 
     while (argc > 0) {
 	if (strcmp(argv[0], "-font") == 0) {
@@ -1564,10 +1519,10 @@ int GdiText(
 
     hDC = printDC;
 
-    x = atol(argv[1]);
-    y = atol(argv[2]);
-    argc -= 3;
-    argv += 3;
+    x = atol(argv[2]);
+    y = atol(argv[3]);
+    argc -= 4;
+    argv += 4;
 
     sizerect.left = sizerect.right = x;
     sizerect.top = sizerect.bottom = y;
@@ -1904,7 +1859,8 @@ static int GdiMap(
     int argc,
     const char **argv)
 {
-    static const char usage_message[] = "::tk::print::_gdi map hdc "
+    static const char usage_message[] =
+	"::tk::print::_gdi map hdc "
 	"[-logical x[y]] [-physical x[y]] "
 	"[-offset {x y} ] [-default] [-mode mode]";
     HDC hdc;
@@ -1924,7 +1880,7 @@ static int GdiMap(
     int use_mode     = 0;
 
     /* Required parameter: HDC for printer. */
-    if (argc < 1) {
+    if (argc < 2) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
@@ -1938,7 +1894,7 @@ static int GdiMap(
     }
 
     /* Parse remaining arguments. */
-    for (argno = 1; argno < argc; argno++) {
+    for (argno = 2; argno < argc; argno++) {
 	if (strcmp(argv[argno], "-default") == 0) {
 	    vextent.cx = vextent.cy = wextent.cx = wextent.cy = 1;
 	    vorigin.x = vorigin.y = worigin.x = worigin.y = 0;
@@ -1970,6 +1926,7 @@ static int GdiMap(
 		need_usage = 1;
 	    } else {
 		int count;
+
 		argno++;
 		/* In "real-life", this should parse units as well.. */
 		if ((count = sscanf(argv[argno], "%ld%ld",
@@ -2144,7 +2101,7 @@ static int GdiCopyBits(
      * Parse the arguments.
      */
     /* HDC is required. */
-    if (argc < 1) {
+    if (argc < 2) {
 	Tcl_AppendResult(interp, usage_message, NULL);
 	return TCL_ERROR;
     }
@@ -2162,7 +2119,7 @@ static int GdiCopyBits(
     }
 
     /* Loop through the remaining arguments. */
-    for (k=1; k<argc; k++) {
+    for (k=2; k<argc; k++) {
 	if (strcmp(argv[k], "-window") == 0) {
 	    if (argv[k+1] && argv[k+1][0] == '.') {
 		do_window = 1;
@@ -2777,7 +2734,7 @@ static int GdiMakePen(
     if (dashstyle != 0 && dashstyledata != 0) {
 	const char *cp;
 	size_t i;
-	char *dup = (char *)Tcl_Alloc(strlen(dashstyledata) + 1);
+	char *dup = (char *) Tcl_Alloc(strlen(dashstyledata) + 1);
 	strcpy(dup, dashstyledata);
 	/* DEBUG. */
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
@@ -4418,27 +4375,6 @@ static int PalEntriesOnDevice(
 }
 
 /*
- *--------------------------------------------------------------
- *
- * Gdi_Init --
- *
- *	Initializes the Gdi package.
- *
- * Results:
- *	Gdi commands initialized.
- *
- *--------------------------------------------------------------
- */
-
-int Gdi_Init(
-    Tcl_Interp *interp)
-{
-    Tcl_CreateCommand(interp, "::tk::print::_gdi", TkWinGDI,
-	    (ClientData) 0, (Tcl_CmdDeleteProc *) 0);
-    return TCL_OK;
-}
-
-/*
  * --------------------------------------------------------------------------
  *
  * Winprint_Init--
@@ -4454,6 +4390,32 @@ int Gdi_Init(
 int Winprint_Init(
     Tcl_Interp * interp)
 {
+    size_t i;
+    Tcl_Namespace *namespacePtr;
+    static const char *gdiName = "::tk::print::_gdi";
+    static const size_t numCommands =
+	    sizeof(gdi_commands) / sizeof(struct gdi_command);
+
+    /*
+     * Set up the low-level [_gdi] command.
+     */
+
+    namespacePtr = Tcl_CreateNamespace(interp, gdiName,
+	    (ClientData) NULL, (Tcl_NamespaceDeleteProc *) NULL);
+    for (i=0; i<numCommands; i++) {
+	char buffer[100];
+
+	sprintf(buffer, "%s::%s", gdiName, gdi_commands[i].command_string);
+	Tcl_CreateCommand(interp, buffer, gdi_commands[i].command,
+		(ClientData) 0, (Tcl_CmdDeleteProc *) 0);
+	Tcl_Export(interp, namespacePtr, gdi_commands[i].command_string, 0);
+    }
+    Tcl_CreateEnsemble(interp, gdiName, namespacePtr, 0);
+
+    /*
+     * The other printing-related commands.
+     */
+
     Tcl_CreateObjCommand(interp, "::tk::print::_selectprinter",
 	    PrintSelectPrinter, NULL, NULL);
     Tcl_CreateObjCommand(interp, "::tk::print::_openprinter",
@@ -4996,7 +4958,6 @@ int PrintCloseDoc(
     int argc,
     Tcl_Obj *const objv[])
 {
-
     (void) clientData;
     (void) argc;
     (void) objv;