libvips/python/vipsCC/VImage.i
2008-02-11 18:18:53 +00:00

188 lines
3.5 KiB
OpenEdge ABL

/* SWIG interface file for vipsCC7
*
* 5/9/07
* - use g_option_context_set_ignore_unknown_options() so we don't fail
* on unrecognied -args (thanks Simon)
*/
%module VImage
%{
#include <vips/vipscpp.h>
%}
/* Need to override assignment to get refcounting working.
*/
%rename(__assign__) vips::VImage::operator=;
%include "std_list.i"
%include "std_complex.i"
%include "std_vector.i"
%include "std_except.i"
%import "VError.i"
%import "VMask.i"
%import "VDisplay.i"
namespace std {
%template(IntVector) vector<int>;
%template(DoubleVector) vector<double>;
%template(ImageVector) vector<VImage>;
}
/* Need the expanded VImage.h in this directory, rather than the usual
* vips/VImage.h. SWIG b0rks on #include inside class definitions.
*/
%include VImage.h
/* Helper code for vips_init().
*/
%{
#include <vips/vips.h>
/* Turn on to print args.
#define DEBUG
*/
/* Command-line args during parse.
*/
typedef struct _Args {
/* The n strings we alloc when we get from Python.
*/
int n;
char **str;
/* argc/argv as processed by us.
*/
int argc;
char **argv;
} Args;
#ifdef DEBUG
static void
args_print (Args *args)
{
int i;
printf ("args_print: argc = %d\n", args->argc);
// +1 so we print the trailing NULL too
for (i = 0; i < args->argc + 1; i++)
printf ("\t%2d)\t%s\n", i, args->argv[i]);
}
#endif /*DEBUG*/
static void
args_free (Args *args)
{
int i;
for (i = 0; i < args->n; i++)
IM_FREE (args->str[i]);
args->n = 0;
args->argc = 0;
IM_FREE (args->str);
IM_FREE (args->argv);
IM_FREE (args);
}
/* Get argv/argc from python.
*/
static Args *
args_new (void)
{
Args *args;
PyObject *av;
int i;
int n;
args = g_new (Args, 1);
args->n = 0;
args->str = NULL;
args->argc = 0;
args->argv = NULL;
if (!(av = PySys_GetObject ((char *) "argv")))
return (args);
if (!PyList_Check (av)) {
PyErr_Warn (PyExc_Warning, "ignoring sys.argv: "
"it must be a list of strings");
return (args);
}
n = PyList_Size (av);
args->str = g_new (char *, n);
for (i = 0; i < n; i++)
args->str[i] = g_strdup
(PyString_AsString (PyList_GetItem (av, i)));
args->n = n;
/* +1 for NULL termination.
*/
args->argc = n;
args->argv = g_new (char *, n + 1);
for (i = 0; i < n; i++)
args->argv[i] = args->str[i];
args->argv[i] = NULL;
return (args);
}
static void
vips_fatal (const char *msg)
{
char buf[256];
im_snprintf (buf, 256, "%s\n%s", msg, im_error_buffer());
im_error_clear ();
Py_FatalError (buf);
}
%}
%init %{
{
Args *args;
args = args_new ();
#ifdef DEBUG
printf ("on startup:\n");
args_print (args);
#endif /*DEBUG*/
if (im_init_world (args->argv[0])) {
args_free (args);
vips_fatal ("can't initialise module vips");
}
/* Now parse any GOptions.
*/
GError *error = NULL;
GOptionContext *context;
context = g_option_context_new ("- vips");
g_option_context_add_group (context, im_get_option_group());
g_option_context_set_ignore_unknown_options (context, TRUE);
if( !g_option_context_parse (context,
&args->argc, &args->argv, &error)) {
g_option_context_free (context);
args_free (args);
im_error ("vipsmodule", "%s", error->message);
g_error_free (error);
vips_fatal ("can't initialise module vips");
}
g_option_context_free (context);
#ifdef DEBUG
printf ("after parse:\n");
args_print (args);
#endif /*DEBUG*/
// Write (possibly) modified argc/argv back again.
if (args->argv)
PySys_SetArgv (args->argc, args->argv);
args_free (args);
}
%}