ffi: Eliminate squeek_button and squeek_row

src/layout.h

@@ -26,7 +26,6 @@ struct squeek_layout_state {
 
 struct squeek_layout;
 
-void squeek_button_print(const struct squeek_button* button);
 
 struct transformation squeek_layout_calculate_transformation(
         const struct squeek_layout *layout,

src/layout.rs

@@ -41,7 +41,7 @@ pub mod c {
     use super::*;
 
     use gtk_sys;
-    use std::os::raw::{ c_char, c_void };
+    use std::os::raw::c_void;
 
     use std::ops::{ Add, Sub };
 
@@ -161,13 +161,6 @@ pub mod c {
 
     // The following defined in Rust. TODO: wrap naked pointers to Rust data inside RefCells to prevent multiple writers
     
-    #[no_mangle]
-    pub extern "C"
-    fn squeek_button_print(button: *const ::layout::Button) {
-        let button = unsafe { &*button };
-        println!("{:?}", button);
-    }
-    
     /// Positions the layout contents within the available space.
     /// The origin of the transformation is the point inside the margins.
     #[no_mangle]

src/popover.h

@@ -1,9 +0,0 @@
-#ifndef POPOVER_H__
-#define POPOVER_H__
-
-#include <gtk/gtk.h>
-#include "eek/eek-keyboard.h"
-
-void squeek_popover_show(GtkWidget*, struct button_place);
-
-#endif