add before header include option

src/configuration.rs

@@ -29,6 +29,8 @@ mod json {
         pub rust: Rust,
         #[serde(default = "false_bool")]
         pub overwrite_implementation: bool,
+        #[serde(rename = "beforeHeader", default)]
+        pub before_header: String,
     }
 
     #[derive(Deserialize)]
@@ -83,6 +85,7 @@ pub struct Config {
     pub rust: Rust,
     pub rust_edition: RustEdition,
     pub overwrite_implementation: bool,
+    pub before_header: String,
 }
 
 impl ConfigPrivate for Config {
@@ -492,6 +495,7 @@ fn post_process(config_file: &Path, json: json::Config) -> Result<Config, Box<Er
         rust: json.rust,
         rust_edition,
         overwrite_implementation: json.overwrite_implementation,
+        before_header: json.before_header,
     })
 }
 

src/cpp.rs

@@ -1400,12 +1400,15 @@ pub fn write_header(conf: &Config) -> Result<()> {
         "/* generated by rust_qt_binding_generator */
 #ifndef {0}
 #define {0}
-
-#include <QtCore/QObject>
-#include <QtCore/QAbstractItemModel>
 ",
         guard
     )?;
+    if conf.before_header != "" {
+        writeln!(h, "#include \"{}\"", conf.before_header)?;
+    }
+    writeln!(h, "
+#include <QtCore/QObject>
+#include <QtCore/QAbstractItemModel>")?;
 
     for name in conf.objects.keys() {
         writeln!(h, "class {};", name)?;