saving config did not worked with spaces right.

ChangeLog

@@ -1,4 +1,5 @@
 2021-11-15:
+- JSON read changed, space was interpreted as '\n'
 - adding support for multiple drivers
 
 2021-10-25:

configuration.cc

@@ -71,12 +71,9 @@ void Configuration::SaveConfig(std::string filename) {
 	cb = GTK_WIDGET(gtk_builder_get_object (GTK_BUILDER(_builder_), "cb-videofmt"));
 	cbe = gtk_bin_get_child(GTK_BIN(cb));
 	jp.AddObject("video_format", (string) gtk_entry_get_text(GTK_ENTRY(cbe)));
-	if (videodev != NULL) {
-		jp.AddObject("device", videodev->GetDevice());
-	}
-	else {
-		jp.AddObject("device", "");
-	}
+	cb = GTK_WIDGET(gtk_builder_get_object (GTK_BUILDER(_builder_), "cb-videodev"));
+	cbe = gtk_bin_get_child(GTK_BIN(cb));
+	jp.AddObject("device", (string) gtk_entry_get_text(GTK_ENTRY(cbe)));
 
 	//
 	// save button config

json.cc

@@ -1,9 +1,15 @@
 
-#include <list>
-#include <string>
 #include <string.h>
 #include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
 #include <fstream>
+#include <list>
+#include <string>
 
 #include "json.h"
 
@@ -386,20 +392,21 @@ string JSONParse::ToString() {
  *                0 .. on Success
  */
 int JSONParse::LoadFromFile(string filename) {
-	ifstream in(filename);
-	string tmp, input;
+	int fd;
+	struct stat fs;
+	char *buffer;
 
-	if (!in) return -1;
+	if (stat(filename.c_str(), &fs) != 0) return -1;
+	buffer = (char *) malloc (fs.st_size+1);
+	memset (buffer, 0x0, fs.st_size+1);
 
-	input = "";
-	while (!in.eof()) {
-		if (input.length() > 0) input += ("\n" + tmp);
-		else input = tmp;
-		in >> tmp;
-	}
-	Set(input);
+	fd = open(filename.c_str(), O_RDONLY);
+	if (fd < 0) return -1;
+	read (fd, buffer, fs.st_size);
+	close (fd);
 
-	in.close();
+	Set(buffer);
+	free (buffer);
 
 	return 0;
 };