diff --git a/eeshow/Makefile b/eeshow/Makefile
index dcba627..183c872 100644
--- a/eeshow/Makefile
+++ b/eeshow/Makefile
@@ -15,6 +15,7 @@ OBJS = main.o \
        kicad/sch-parse.o kicad/sch-render.o kicad/lib-parse.o \
        kicad/lib-render.o kicad/dwg.o kicad/delta.o \
        gui/gui.o gui/over.o gui/style.o gui/aoi.o gui/fmt-pango.o gui/input.o \
+       gui/progress.o \
        file/file.o file/git-util.o file/git-file.o file/git-hist.o \
        gfx/style.o gfx/fig.o gfx/record.o gfx/cro.o gfx/diff.o gfx/gfx.o \
        gfx/text.o gfx/misc.o \
diff --git a/eeshow/gui/common.h b/eeshow/gui/common.h
index 6602be9..f7b405b 100644
--- a/eeshow/gui/common.h
+++ b/eeshow/gui/common.h
@@ -99,4 +99,11 @@ struct gui_ctx {
 	unsigned progress_scale;/* right-shift by this value */
 };
 
+
+
+void redraw(const struct gui_ctx *ctx);
+
+void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window);
+void progress_update(struct gui_ctx *ctx);
+
 #endif /* !GUI_COMMON_H */
diff --git a/eeshow/gui/gui.c b/eeshow/gui/gui.c
index d20928c..bf2d30f 100644
--- a/eeshow/gui/gui.c
+++ b/eeshow/gui/gui.c
@@ -51,7 +51,7 @@
 /* ----- Helper functions -------------------------------------------------- */
 
 
-static void redraw(const struct gui_ctx *ctx)
+void redraw(const struct gui_ctx *ctx)
 {
 	gtk_widget_queue_draw(ctx->da);
 }
@@ -998,79 +998,6 @@ static bool hover_glabel(void *user, bool on)
 }
 
 
-/* ----- Progress bar ------------------------------------------------------ */
-
-
-#define	PROGRESS_BAR_HEIGHT	10
-
-
-static void progress_draw_event(GtkWidget *widget, cairo_t *cr,
-    gpointer user_data)
-{
-	GtkAllocation alloc;
-	struct gui_ctx *ctx = user_data;
-	unsigned w, x;
-
-	x = ctx->progress >> ctx->progress_scale;
-	if (!x) {
-		/* @@@ needed ? Gtk seems to always clear the the surface. */
-		cairo_set_source_rgb(cr, 1, 1, 1);
-		cairo_paint(cr);
-	}
-
-	gtk_widget_get_allocation(ctx->da, &alloc);
-	w = ctx->hist_size >> ctx->progress_scale;
-
-	cairo_save(cr);
-	cairo_translate(cr,
-	    (alloc.width - w) / 2, (alloc.height - PROGRESS_BAR_HEIGHT) / 2);
-
-	cairo_set_source_rgb(cr, 0, 0.7, 0);
-	cairo_set_line_width(cr, 0);
-	cairo_rectangle(cr, 0, 0, x, PROGRESS_BAR_HEIGHT);
-	cairo_fill(cr);
-
-	cairo_set_source_rgb(cr, 0, 0, 0);
-	cairo_set_line_width(cr, 2);
-	cairo_rectangle(cr, 0, 0, w, PROGRESS_BAR_HEIGHT);
-	cairo_stroke(cr);
-
-	cairo_restore(cr);
-}
-
-
-static void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window)
-{
-	GtkAllocation alloc;
-
-	gtk_widget_get_allocation(ctx->da, &alloc);
-
-	ctx->progress_scale = 0;
-	while ((ctx->hist_size >> ctx->progress_scale) > alloc.width)
-		ctx->progress_scale++;
-	ctx->progress = 0;
-
-	g_signal_connect(G_OBJECT(ctx->da), "draw",
-	    G_CALLBACK(progress_draw_event), ctx);
-
-	redraw(ctx);
-	gtk_main_iteration_do(0);
-}
-
-
-static void progress_update(struct gui_ctx *ctx)
-{
-	unsigned mask = (1 << ctx->progress_scale) - 1;
-
-	ctx->progress++;
-	if ((ctx->progress & mask) != mask)
-		return;
-
-	redraw(ctx);
-	gtk_main_iteration_do(0);
-}
-
-
 /* ----- Initialization ---------------------------------------------------- */
 
 
diff --git a/eeshow/gui/progress.c b/eeshow/gui/progress.c
new file mode 100644
index 0000000..b7f1d39
--- /dev/null
+++ b/eeshow/gui/progress.c
@@ -0,0 +1,99 @@
+/*
+ * gui/progress.c - Progress bar
+ *
+ * Written 2016 by Werner Almesberger
+ * Copyright 2016 by Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/*
+ * Resources:
+ *
+ * http://zetcode.com/gfx/cairo/cairobackends/
+ * https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html
+ */
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include <cairo/cairo.h>
+#include <gtk/gtk.h>
+
+#include "gui/common.h"
+
+
+#define	PROGRESS_BAR_HEIGHT	10
+
+
+static void progress_draw_event(GtkWidget *widget, cairo_t *cr,
+    gpointer user_data)
+{
+	GtkAllocation alloc;
+	struct gui_ctx *ctx = user_data;
+	unsigned w, x;
+
+	x = ctx->progress >> ctx->progress_scale;
+	if (!x) {
+		/* @@@ needed ? Gtk seems to always clear the the surface. */
+		cairo_set_source_rgb(cr, 1, 1, 1);
+		cairo_paint(cr);
+	}
+
+	gtk_widget_get_allocation(ctx->da, &alloc);
+	w = ctx->hist_size >> ctx->progress_scale;
+
+	cairo_save(cr);
+	cairo_translate(cr,
+	    (alloc.width - w) / 2, (alloc.height - PROGRESS_BAR_HEIGHT) / 2);
+
+	cairo_set_source_rgb(cr, 0, 0.7, 0);
+	cairo_set_line_width(cr, 0);
+	cairo_rectangle(cr, 0, 0, x, PROGRESS_BAR_HEIGHT);
+	cairo_fill(cr);
+
+	cairo_set_source_rgb(cr, 0, 0, 0);
+	cairo_set_line_width(cr, 2);
+	cairo_rectangle(cr, 0, 0, w, PROGRESS_BAR_HEIGHT);
+	cairo_stroke(cr);
+
+	cairo_restore(cr);
+}
+
+
+void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window)
+{
+	GtkAllocation alloc;
+
+	gtk_widget_get_allocation(ctx->da, &alloc);
+
+	ctx->progress_scale = 0;
+	while ((ctx->hist_size >> ctx->progress_scale) > alloc.width)
+		ctx->progress_scale++;
+	ctx->progress = 0;
+
+	g_signal_connect(G_OBJECT(ctx->da), "draw",
+	    G_CALLBACK(progress_draw_event), ctx);
+
+	redraw(ctx);
+	gtk_main_iteration_do(0);
+}
+
+
+void progress_update(struct gui_ctx *ctx)
+{
+	unsigned mask = (1 << ctx->progress_scale) - 1;
+
+	ctx->progress++;
+	if ((ctx->progress & mask) != mask)
+		return;
+
+	redraw(ctx);
+	gtk_main_iteration_do(0);
+}