From 2509f0af5217bd7186ded2cd55f82b30a7db4fc6 Mon Sep 17 00:00:00 2001
From: Přemysl Janouch <p.janouch@gmail.com>
Date: Fri, 10 Jun 2011 14:52:22 +0200
Subject: Workaround the ANSI codepage limitation on Win32.

---
 NEWS          |  2 ++
 src/logdiag.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+)

diff --git a/NEWS b/NEWS
index 995f81c..58f9ef2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,7 @@
 Version TBD
  - Added scrolling using the middle mouse button.
+ - Fixed command line parsing on Windows,
+   it's not limited to the system ANSI codepage anymore.
  - Fixed checking for the shift key when selecting.
  - Terminals are ignored when hovering the cursor above a selection.
  - Disallowed wheel zooming when holding mouse buttons.
diff --git a/src/logdiag.c b/src/logdiag.c
index 90548d3..c44c1c3 100644
--- a/src/logdiag.c
+++ b/src/logdiag.c
@@ -16,6 +16,66 @@
 #include "ld-window-main.h"
 
 
+#ifdef _WIN32
+#include <windows.h>
+#include <shellapi.h>
+
+/*
+ * get_utf8_args:
+ * @argc: where the number of arguments will be stored.
+ * @argv: where the actual array of arguments will be stored.
+ *        Use g_strfreev() to free the array.
+ *
+ * Retrieve program arguments in UTF-8 encoding on Windows.
+ *
+ * Return value: %TRUE if the function has succeeded.
+ */
+static gboolean
+get_utf8_args (int *argc, char ***argv)
+{
+	LPWSTR *argv_wide;
+	int i, argc_local, buff_size;
+	char **argv_local, *arg;
+
+	argv_wide = CommandLineToArgvW (GetCommandLineW (), &argc_local);
+	if (!argv_wide)
+		return FALSE;
+
+	argv_local = g_malloc ((argc_local + 1) * sizeof (char *));
+	for (i = 0; i < argc_local; i++)
+	{
+		buff_size = WideCharToMultiByte (CP_UTF8, 0, argv_wide[i], -1,
+			NULL, 0, NULL, NULL);
+		if (!buff_size)
+			goto get_utf8_args_fail;
+
+		argv_local[i] = g_malloc (buff_size);
+		if (!WideCharToMultiByte (CP_UTF8, 0, argv_wide[i], -1,
+			argv_local[i], buff_size, NULL, NULL))
+		{
+			g_free (argv_local[i]);
+			goto get_utf8_args_fail;
+		}
+	}
+	argv_local[i] = NULL;
+	LocalFree (argv_wide);
+
+	if (argc)
+		*argc = argc_local;
+	if (argv)
+		*argv = argv_local;
+	return TRUE;
+
+get_utf8_args_fail:
+	while (i--)
+		g_free (argv_local[i]);
+	g_free (argv_local);
+
+	LocalFree (argv_wide);
+	return FALSE;
+}
+#endif
+
 int
 main (int argc, char *argv[])
 {
@@ -29,6 +89,7 @@ main (int argc, char *argv[])
 
 	GError *error;
 #ifdef _WIN32
+	gboolean argv_overriden;
 	gchar *install_dir;
 
 	install_dir = g_win32_get_package_installation_directory_of_module (NULL);
@@ -45,6 +106,13 @@ main (int argc, char *argv[])
 	bind_textdomain_codeset (GETTEXT_DOMAIN, "UTF-8");
 	textdomain (GETTEXT_DOMAIN);
 
+#ifdef _WIN32
+	/* Don't be limited by the ANSI codepage. */
+	argv_overriden = get_utf8_args (&argc, &argv);
+	if (argv_overriden)
+		_putenv ("CHARSET=UTF-8");
+#endif
+
 	error = NULL;
 	gtk_init_with_args (&argc, &argv, N_("- Schematic editor"),
 		option_entries, GETTEXT_DOMAIN, &error);
@@ -55,6 +123,14 @@ main (int argc, char *argv[])
 		return 1;
 	}
 
+#ifdef _WIN32
+	if (argv_overriden)
+	{
+		_putenv ("CHARSET=");
+		g_strfreev (argv);
+	}
+#endif
+
 	gtk_window_set_default_icon_name (PROJECT_NAME);
 
 	/* TODO: Be able to open multiple files. */
-- 
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