1 files changed, 66 insertions, 0 deletions
diff --git a/libstorycode/gtk/timing_ruler.c b/libstorycode/gtk/timing_ruler.c
new file mode 100644
index 0000000..66b925e
--- /dev/null
+++ b/libstorycode/gtk/timing_ruler.c
@@ -0,0 +1,66 @@
+/*
+ * gtknarrativeview.c
+ *
+ * Copyright © 2013-2019 Thomas White <taw@bitwiz.org.uk>
+ *
+ * This file is part of Colloquium.
+ *
+ * Colloquium 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <gtk/gtk.h>
+#include <assert.h>
+#include <math.h>
+#include <libintl.h>
+#define _(x) gettext(x)
+
+#include <narrative.h>
+
+#include "narrative_priv.h"
+#include "gtknarrativeview.h"
+
+
+void draw_ruler(cairo_t *cr, GtkNarrativeView *e)
+{
+	int start_item, end_item;
+	int i;
+	double start_item_time = 0.0;
+	double t;
+
+	/* Background */
+	cairo_set_source_rgba(cr, 0.9, 0.9, 0.9, 1.0);
+	cairo_rectangle(cr, 0.0, 0.0, e->ruler_width, e->h);
+	cairo_fill(cr);
+
+	/* Which items are visible? */
+	narrative_get_item_range(e->n, e->scroll_pos, e->scroll_pos+e->visible_height,
+	                         &start_item, &end_item);
+
+	for ( i=0; i<start_item; i++ ) {
+		start_item_time += e->n->items[i].estd_duration;
+	}
+	t = start_item_time;
+	for ( i=start_item; i<=end_item; i++ ) {
+		//printf("%4i: %.2f mins\n", i, t);
+		t += e->n->items[i].estd_duration;
+	}
+}