36 files changed, 332 insertions, 176 deletions

diff --git a/src/controller/actions/zoom.h b/src/controller/actions/zoom.h
new file mode 100644
index 0000000..bd5b852
--- a/dev/null
+++ b/src/controller/actions/zoom.h
@@ -0,0 +1,9 @@
+#ifndef ZOOM_H
+#define ZOOM_H
+
+/*
+ * Perform a zoom operation.
+ */
+void zoom (int x1, int y1, int x2, int y2);
+
+#endif // ZOOM_H