cleanup: Remove references to squeek_view

eek/eek-keyboard.c

@@ -57,8 +57,3 @@ LevelKeyboard *level_keyboard_new(EekboardContextService *manager, struct squeek
     keyboard->manager = manager;
     return keyboard;
 }
-
-struct squeek_view *level_keyboard_current(LevelKeyboard *keyboard)
-{
-    return squeek_layout_get_current_view(keyboard->layout);
-}

eek/eek-keyboard.h

@@ -49,7 +49,6 @@ typedef struct _LevelKeyboard LevelKeyboard;
 gchar *             eek_keyboard_get_keymap
                                      (LevelKeyboard *keyboard);
 
-struct squeek_view *level_keyboard_current(LevelKeyboard *keyboard);
 LevelKeyboard *level_keyboard_new(EekboardContextService *manager, struct squeek_layout *layout);
 void level_keyboard_deinit(LevelKeyboard *self);
 void level_keyboard_free(LevelKeyboard *self);

eek/eek-renderer.c

@@ -42,14 +42,12 @@ typedef struct _EekRendererPrivate
     GtkStyleContext *view_context; // owned
     GtkStyleContext *button_context; // TODO: maybe move a copy to each button
 
-    gdouble border_width;
+    gdouble border_width; // FIXME: border of what?
 
     gdouble allocation_width;
     gdouble allocation_height;
-    gdouble scale;
     gint scale_factor; /* the outputs scale factor */
-    gint origin_x;
-    gint origin_y;
+    struct transformation widget_to_layout;
 
     PangoFontDescription *font; // owned reference
 
@@ -65,14 +63,6 @@ void eek_render_button                         (EekRenderer *self,
                                                 cairo_t     *cr, const struct squeek_button *button,
                                                 gboolean     pressed, gboolean locked);
 
-struct _CreateKeyboardSurfaceCallbackData {
-    cairo_t *cr;
-    EekRenderer *renderer;
-    struct squeek_view *view;
-    struct squeek_row *row;
-};
-typedef struct _CreateKeyboardSurfaceCallbackData CreateKeyboardSurfaceCallbackData;
-
 static void
 render_outline (cairo_t     *cr,
                 GtkStyleContext *ctx,
@@ -271,8 +261,8 @@ eek_renderer_render_keyboard (EekRenderer *self,
                            priv->allocation_width, priv->allocation_height);
 
     cairo_save(cr);
-    cairo_translate (cr, priv->origin_x, priv->origin_y);
-    cairo_scale (cr, priv->scale, priv->scale);
+    cairo_translate (cr, priv->widget_to_layout.origin_x, priv->widget_to_layout.origin_y);
+    cairo_scale (cr, priv->widget_to_layout.scale, priv->widget_to_layout.scale);
 
     squeek_draw_layout_base_view(priv->keyboard->layout, self, cr);
     squeek_layout_draw_all_changed(priv->keyboard->layout, self, cr);
@@ -403,7 +393,6 @@ eek_renderer_init (EekRenderer *self)
     priv->border_width = 1.0;
     priv->allocation_width = 0.0;
     priv->allocation_height = 0.0;
-    priv->scale = 1.0;
     priv->scale_factor = 1;
     priv->font = NULL;
 
@@ -461,8 +450,6 @@ eek_renderer_set_allocation_size (EekRenderer *renderer,
                                   gdouble      width,
                                   gdouble      height)
 {
-    gdouble scale;
-
     g_return_if_fail (EEK_IS_RENDERER(renderer));
     g_return_if_fail (width > 0.0 && height > 0.0);
 
@@ -471,19 +458,9 @@ eek_renderer_set_allocation_size (EekRenderer *renderer,
     priv->allocation_width = width;
     priv->allocation_height = height;
 
-    /* Calculate a scale factor to use when rendering the keyboard into the
-       available space. */
-    EekBounds bounds = squeek_view_get_bounds (level_keyboard_current(priv->keyboard));
-
-    gdouble w = (bounds.x * 2) + bounds.width;
-    gdouble h = (bounds.y * 2) + bounds.height;
-
-    scale = MIN(width / w, height / h);
-
-    priv->scale = scale;
-    /* Set the rendering offset in widget coordinates to center the keyboard */
-    priv->origin_x = (gint)floor((width - (scale * w)) / 2);
-    priv->origin_y = (gint)floor((height - (scale * h)) / 2);
+    priv->widget_to_layout = squeek_layout_calculate_transformation(
+                priv->keyboard->layout,
+                priv->allocation_width, priv->allocation_height);
 
     // This is where size-dependent surfaces would be released
 }
@@ -574,10 +551,5 @@ eek_renderer_get_transformation (EekRenderer *renderer) {
     g_return_val_if_fail (EEK_IS_RENDERER(renderer), failed);
 
     EekRendererPrivate *priv = eek_renderer_get_instance_private (renderer);
-    struct transformation ret = {
-        .origin_x = priv->origin_x,
-        .origin_y = priv->origin_y,
-        .scale = priv->scale,
-    };
-    return ret;
+    return priv->widget_to_layout;
 }

src/layout.h

@@ -14,13 +14,8 @@ enum squeek_arrangement_kind {
     ARRANGEMENT_KIND_WIDE = 1,
 };
 
-struct squeek_view;
 struct squeek_layout;
 
-int32_t squeek_row_get_angle(const struct squeek_row*);
-
-EekBounds squeek_row_get_bounds(const struct squeek_row*);
-
 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*);
@@ -29,12 +24,12 @@ const char *squeek_button_get_outline_name(const struct squeek_button*);
 
 void squeek_button_print(const struct squeek_button* button);
 
-
-EekBounds squeek_view_get_bounds(const struct squeek_view*);
+struct transformation squeek_layout_calculate_transformation(
+        const struct squeek_layout *layout,
+        double allocation_width, double allocation_size);
 
 void
 squeek_layout_place_contents(struct squeek_layout*);
-struct squeek_view *squeek_layout_get_current_view(struct squeek_layout*);
 
 struct squeek_layout *squeek_load_layout(const char *name, uint32_t type);
 const char *squeek_layout_get_keymap(const struct squeek_layout*);

src/layout.rs

@@ -129,29 +129,6 @@ 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_view_get_bounds(view: *const ::layout::View) -> Bounds {
-        unsafe { &*view }.bounds.clone()
-    }
-
-    #[no_mangle]
-    pub extern "C"
-    fn squeek_row_get_angle(row: *const ::layout::Row) -> i32 {
-        let row = unsafe { &*row };
-        row.angle
-    }
-    
-    #[no_mangle]
-    pub extern "C"
-    fn squeek_row_get_bounds(row: *const ::layout::Row) -> Bounds {
-        let row = unsafe { &*row };
-        match &row.bounds {
-            Some(bounds) => bounds.clone(),
-            None => panic!("Row doesn't have any bounds yet"),
-        }
-    }
-
     #[no_mangle]
     pub extern "C"
     fn squeek_button_get_bounds(button: *const ::layout::Button) -> Bounds {
@@ -207,16 +184,26 @@ pub mod c {
         println!("{:?}", button);
     }
     
+    /// Positions the layout within the available space
     #[no_mangle]
     pub extern "C"
-    fn squeek_layout_get_current_view(layout: *const Layout) -> *const View {
+    fn squeek_layout_calculate_transformation(
+        layout: *const Layout,
+        allocation_width: f64,
+        allocation_height: f64,
+    ) -> Transformation {
         let layout = unsafe { &*layout };
-        let view_name = layout.current_view.clone();
-        layout.views.get(&view_name)
-            .expect("Current view doesn't exist")
-            .as_ref() as *const View
+        let bounds = &layout.get_current_view().bounds;
+        let h_scale = allocation_width / bounds.width;
+        let v_scale = allocation_height / bounds.height;
+        let scale = if h_scale > v_scale { h_scale } else { v_scale };
+        Transformation {
+            origin_x: allocation_width - (scale * bounds.width) / 2.0,
+            origin_y: allocation_height - (scale * bounds.height) / 2.0,
+            scale: scale,
+        }
     }
-
+    
     #[no_mangle]
     pub extern "C"
     fn squeek_layout_get_keymap(layout: *const Layout) -> *const c_char {