Center the keyboard in landscape orientation

eek/eek-gtk-keyboard.c

@@ -57,6 +57,9 @@ typedef struct _EekGtkKeyboardPrivate
     EekKeyboard *keyboard;
     EekTheme *theme;
 
+    int origin_x;
+    int origin_y;
+
     GdkEventSequence *sequence; // unowned reference
 } EekGtkKeyboardPrivate;
 
@@ -108,6 +111,9 @@ eek_gtk_keyboard_real_draw (GtkWidget *self,
 
     gtk_widget_get_allocation (self, &allocation);
 
+    cairo_save (cr);
+    cairo_translate (cr, priv->origin_x, priv->origin_y);
+
     if (!priv->renderer) {
         PangoContext *pcontext;
 
@@ -125,6 +131,8 @@ eek_gtk_keyboard_real_draw (GtkWidget *self,
 
     eek_renderer_render_keyboard (priv->renderer, cr);
 
+    cairo_restore (cr);
+
     /* redraw pressed key */
     list = eek_keyboard_get_pressed_keys (priv->keyboard);
     for (head = list; head; head = g_list_next (head)) {
@@ -149,6 +157,9 @@ eek_gtk_keyboard_real_size_allocate (GtkWidget     *self,
     EekGtkKeyboardPrivate *priv =
 	    eek_gtk_keyboard_get_instance_private (EEK_GTK_KEYBOARD (self));
 
+    priv->origin_x = (allocation->width - 360) / 2;
+    priv->origin_y = 0;
+
     if (priv->renderer)
         eek_renderer_set_allocation_size (priv->renderer,
                                           allocation->width,
@@ -161,7 +172,9 @@ eek_gtk_keyboard_real_size_allocate (GtkWidget     *self,
 static void depress(EekGtkKeyboard *self,
                     gdouble x, gdouble y, guint32 time) {
     EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
-    EekKey *key = eek_renderer_find_key_by_position (priv->renderer, x, y);
+    EekKey *key = eek_renderer_find_key_by_position (priv->renderer,
+        x - priv->origin_x, y - priv->origin_y);
+
     if (key) {
         eek_keyboard_press_key(priv->keyboard, key, time);
         on_key_pressed(key, self);
@@ -171,7 +184,8 @@ static void depress(EekGtkKeyboard *self,
 static void drag(EekGtkKeyboard *self,
                  gdouble x, gdouble y, guint32 time) {
     EekGtkKeyboardPrivate *priv = eek_gtk_keyboard_get_instance_private (self);
-    EekKey *key = eek_renderer_find_key_by_position (priv->renderer, x, y);
+    EekKey *key = eek_renderer_find_key_by_position (priv->renderer,
+        x - priv->origin_x, y - priv->origin_y);
 
     if (key) {
         GList *list, *head;
@@ -488,6 +502,8 @@ render_pressed_key (GtkWidget *widget,
     GdkDrawingContext *context = gdk_window_begin_draw_frame (window, region);
     cairo_t           *cr      = gdk_drawing_context_get_cairo_context (context);
 
+    cairo_translate (cr, priv->origin_x, priv->origin_y);
+
     eek_renderer_get_key_bounds (priv->renderer, key, &bounds, TRUE);
     magnify_bounds (widget, &bounds, &large_bounds, 1.5);
 
@@ -519,6 +535,8 @@ render_locked_key (GtkWidget *widget,
     GdkDrawingContext *context = gdk_window_begin_draw_frame (window, region);
     cairo_t           *cr      = gdk_drawing_context_get_cairo_context (context);
 
+    cairo_translate (cr, priv->origin_x, priv->origin_y);
+
     eek_renderer_get_key_bounds (priv->renderer, key, &bounds, TRUE);
 
     cairo_translate (cr, bounds.x, bounds.y);
@@ -542,6 +560,8 @@ render_released_key (GtkWidget *widget,
     GdkDrawingContext *context = gdk_window_begin_draw_frame (window, region);
     cairo_t           *cr      = gdk_drawing_context_get_cairo_context (context);
 
+    cairo_translate (cr, priv->origin_x, priv->origin_y);
+
     eek_renderer_get_key_bounds (priv->renderer, key, &bounds, TRUE);
     magnify_bounds (widget, &bounds, &large_bounds, 1.5);