1 files changed, 72 insertions, 0 deletions
diff --git a/src/gs-review-bar.c b/src/gs-review-bar.c
new file mode 100644
index 0000000..8e65449
--- /dev/null
+++ b/src/gs-review-bar.c
@@ -0,0 +1,72 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ * vi:set noexpandtab tabstop=8 shiftwidth=8:
+ *
+ * Copyright (C) 2016 Canonical Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include "config.h"
+
+#include <math.h>
+
+#include "gs-review-bar.h"
+
+struct _GsReviewBar
+{
+	GtkWidget	 parent_instance;
+	gdouble		 fraction;
+};
+
+G_DEFINE_TYPE (GsReviewBar, gs_review_bar, GTK_TYPE_WIDGET)
+
+void
+gs_review_bar_set_fraction (GsReviewBar *bar, gdouble fraction)
+{
+	g_return_if_fail (GS_IS_REVIEW_BAR (bar));
+	bar->fraction = fraction;
+}
+
+static void
+gs_review_bar_init (GsReviewBar *bar)
+{
+}
+
+static void
+gs_review_bar_snapshot (GtkWidget   *widget,
+                        GtkSnapshot *snapshot)
+{
+	gdouble bar_width, bar_height;
+	GdkRGBA color;
+
+	gtk_style_context_get_color (gtk_widget_get_style_context (widget), &color);
+
+	bar_width = round (GS_REVIEW_BAR (widget)->fraction * gtk_widget_get_width (widget));
+	bar_height = gtk_widget_get_height (widget);
+
+	gtk_snapshot_append_color (snapshot,
+				   &color,
+				   &GRAPHENE_RECT_INIT (0,
+							0,
+							bar_width,
+							bar_height));
+
+	GTK_WIDGET_CLASS (gs_review_bar_parent_class)->snapshot (widget, snapshot);
+}
+
+static void
+gs_review_bar_class_init (GsReviewBarClass *klass)
+{
+	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+	widget_class->snapshot = gs_review_bar_snapshot;
+
+	gtk_widget_class_set_css_name (widget_class, "review-bar");
+}
+
+GtkWidget *
+gs_review_bar_new (void)
+{
+	GsReviewBar *bar;
+	bar = g_object_new (GS_TYPE_REVIEW_BAR, NULL);
+	return GTK_WIDGET (bar);
+}