style: Use outline name as CSS class

data/style.css

@@ -18,6 +18,13 @@ button:active {
     border-color: #716e78;
 }
 
+button.altline,
+button.special,
+button.wide {
+    background: #2b292f;
+    border-color: #3e3a44
+}
+
 #Return {
     background: #1c71d8;
     border-color: #1a5fb4
@@ -27,48 +34,3 @@ button:active {
     background: #1c71d8;
     border-color: #3584e4;
 }
-
-#Shift_L {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#Shift_L:active {
-    background: #1c71d8;
-    border-color: #3584e4;
-}
-
-#show_numbers {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#show_letters {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#show_symbols {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#show_numbers_from_symbols {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#preferences {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#period {
-    background: #2b292f;
-    border-color: #3e3a44
-}
-
-#BackSpace {
-    background: #2b292f;
-    border-color: #3e3a44
-}

eek/eek-renderer.c

@@ -187,34 +187,17 @@ render_outline (cairo_t     *cr,
     gtk_render_frame (ctx, cr, 0, 0, bounds.width, bounds.height);
 }
 
-static void
+static void render_button_in_context(EekRenderer *self,
-render_button (EekRenderer *self,
+                                     cairo_t     *cr,
-            cairo_t     *cr,
+                                     GtkStyleContext *ctx,
-            struct button_place *place,
+                                     struct button_place *place,
-            gboolean     active)
+                                     gboolean active) {
-{
-    EekRendererPrivate *priv = eek_renderer_get_instance_private (self);
     cairo_surface_t *outline_surface;
     GHashTable *outline_surface_cache;
     PangoLayout *layout;
     PangoRectangle extents = { 0, };
     EekColor foreground;
-
+    EekRendererPrivate *priv = eek_renderer_get_instance_private (self);
-    GtkStyleContext *ctx = priv->button_context;
-    /* Set the name of the button on the widget path, using the name obtained
-       from the button's symbol. */
-    g_autoptr (GtkWidgetPath) path = NULL;
-    path = gtk_widget_path_copy (gtk_style_context_get_path (ctx));
-    const char *name = squeek_button_get_name(place->button);
-    gtk_widget_path_iter_set_name (path, -1, name);
-
-    /* Update the style context with the updated widget path. */
-    gtk_style_context_set_path (ctx, path);
-    /* Set the state to take into account whether the button is active
-       (pressed) or normal. */
-    gtk_style_context_set_state(ctx,
-        active ? GTK_STATE_FLAG_ACTIVE : GTK_STATE_FLAG_NORMAL);
-
 
     /* render outline */
     EekBounds bounds = squeek_button_get_bounds(place->button);
@@ -225,6 +208,7 @@ render_button (EekRenderer *self,
         outline_surface_cache = priv->outline_surface_cache;
 
     outline_surface = g_hash_table_lookup (outline_surface_cache, place->button);
+
     if (!outline_surface) {
         cairo_t *cr;
 
@@ -251,7 +235,6 @@ render_button (EekRenderer *self,
                              (gpointer)place->button,
                              outline_surface);
     }
-
     cairo_set_source_surface (cr, outline_surface, 0.0, 0.0);
     cairo_paint (cr);
 
@@ -286,7 +269,6 @@ render_button (EekRenderer *self,
             return;
         }
     }
-
     /* render label */
     layout = pango_cairo_create_layout (cr);
     eek_renderer_real_render_button_label (self, layout, place->button);
@@ -303,11 +285,42 @@ render_button (EekRenderer *self,
                            foreground.green,
                            foreground.blue,
                            foreground.alpha);
-
-    gtk_style_context_set_state(ctx, GTK_STATE_FLAG_NORMAL);
     pango_cairo_show_layout (cr, layout);
     cairo_restore (cr);
     g_object_unref (layout);
+
+}
+
+static void
+render_button (EekRenderer *self,
+            cairo_t     *cr,
+            struct button_place *place,
+            gboolean     active)
+{
+    EekRendererPrivate *priv = eek_renderer_get_instance_private (self);
+
+    GtkStyleContext *ctx = priv->button_context;
+    /* Set the name of the button on the widget path, using the name obtained
+       from the button's symbol. */
+    g_autoptr (GtkWidgetPath) path = NULL;
+    path = gtk_widget_path_copy (gtk_style_context_get_path (ctx));
+    const char *name = squeek_button_get_name(place->button);
+    gtk_widget_path_iter_set_name (path, -1, name);
+
+    /* Update the style context with the updated widget path. */
+    gtk_style_context_set_path (ctx, path);
+    /* Set the state to take into account whether the button is active
+       (pressed) or normal. */
+    gtk_style_context_set_state(ctx,
+        active ? GTK_STATE_FLAG_ACTIVE : GTK_STATE_FLAG_NORMAL);
+    const char *outline_name = squeek_button_get_outline_name(place->button);
+    gtk_style_context_add_class(ctx, outline_name);
+
+    render_button_in_context(self, cr, ctx, place, active);
+
+    // Save and restore functions don't work if gtk_render_* was used in between
+    gtk_style_context_set_state(ctx, GTK_STATE_FLAG_NORMAL);
+    gtk_style_context_remove_class(ctx, outline_name);
 }
 
 /**

src/data.rs

@@ -476,6 +476,7 @@ fn create_button(
 
     ::layout::Button {
         name: cname,
+        outline_name: CString::new(outline_name).expect("Bad outline"),
         // TODO: do layout before creating buttons
         bounds: ::layout::c::Bounds {
             x: outline.bounds.x,

src/layout.h

@@ -32,6 +32,7 @@ EekBounds squeek_button_get_bounds(const struct squeek_button*);
 const char *squeek_button_get_label(const struct squeek_button*);
 const char *squeek_button_get_icon_name(const struct squeek_button*);
 const char *squeek_button_get_name(const struct squeek_button*);
+const char *squeek_button_get_outline_name(const struct squeek_button*);
 
 struct squeek_key *squeek_button_get_key(const struct squeek_button*);
 uint32_t *squeek_button_has_key(const struct squeek_button* button,

src/layout.rs

@@ -40,11 +40,6 @@ pub mod c {
     #[repr(transparent)]
     pub struct UserData(*const c_void);
 
-    /// The index in the relevant outline table
-    #[repr(C)]
-    #[derive(Clone, Debug)]
-    pub struct OutlineRef(u32);
-
     /// Defined in eek-types.h
     #[repr(C)]
     #[derive(Clone, Debug)]
@@ -195,6 +190,13 @@ pub mod c {
         button.name.as_ptr()
     }
     
+    #[no_mangle]
+    pub extern "C"
+    fn squeek_button_get_outline_name(button: *const Button) -> *const c_char {
+        let button = unsafe { &*button };
+        button.outline_name.as_ptr()
+    }
+
     #[no_mangle]
     pub extern "C"
     fn squeek_button_has_key(
@@ -502,6 +504,7 @@ pub mod c {
                 bounds: c::Bounds {
                     x: 0f64, y: 0f64, width: 0f64, height: 0f64
                 },
+                outline_name: CString::new("test").unwrap(),
                 label: Label::Text(CString::new(name).unwrap()),
                 state: state,
             })
@@ -565,6 +568,8 @@ pub struct Button {
     /// TODO: position the buttons before they get initial bounds
     /// Position relative to some origin (i.e. parent/row)
     pub bounds: c::Bounds,
+    /// The name of the visual class applied
+    pub outline_name: CString,
     /// current state, shared with other buttons
     pub state: Rc<RefCell<KeyState>>,
 }