Initial implementation of #6 Gresource support.

hammond-gtk/src/main.rs

@@ -47,6 +47,7 @@ mod widgets;
 mod headerbar;
 
 mod utils;
+mod static_resource;
 
 use views::podcasts_view;
 

hammond-gtk/src/resources/resources.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/gtk/hammond">
+      <file>banner.png</file>
+  </gresource>
+</gresources>

hammond-gtk/src/static_resource.rs

@@ -0,0 +1,18 @@
+extern crate gio_sys;
+extern crate glib_sys;
+extern crate libc;
+
+use std;
+
+// https://github.com/sunnyone/gresource-gtkrs-example/blob/master/src/static_resource.rs
+// TODO: slomo mentioned that the unsafe could be removed and use a safe API instead.
+pub fn init() {
+    let res_bytes = include_bytes!("resources/resources.gresource");
+    unsafe {
+        // gbytes and resource will not be freed
+        let gbytes =
+            glib_sys::g_bytes_new(res_bytes.as_ptr() as *const libc::c_void, res_bytes.len());
+        let resource = gio_sys::g_resource_new_from_data(gbytes, std::ptr::null_mut());
+        gio_sys::g_resources_register(resource);
+    }
+}

hammond-gtk/src/views/podcasts_view.rs

@@ -7,6 +7,7 @@ use hammond_data::models::Podcast;
 use hammond_data::index_feed::Database;
 
 use widgets::podcast::*;
+use static_resource;
 
 fn show_empty_view(stack: &gtk::Stack) {
     let builder = gtk::Builder::new_from_string(include_str!("../../gtk/empty_view.ui"));
@@ -61,8 +62,10 @@ fn create_flowbox_child(db: &Database, pd: &Podcast) -> gtk::FlowBoxChild {
 }
 
 fn configure_banner(db: &Database, pd: &Podcast, banner: &gtk::Image, banner_title: &gtk::Label) {
-    // TODO: use GResource instead.
-    let bann = Pixbuf::new_from_file_at_scale("hammond-gtk/gtk/banner.png", 256, 256, true);
+    // TODO: move .ui files into gresources and refactor.
+    static_resource::init();
+
+    let bann = Pixbuf::new_from_resource_at_scale("/org/gtk/hammond/banner.png", 256, 256, true);
     if let Ok(b) = bann {
         banner.set_from_pixbuf(&b);