Add license, and expand variables

1 files changed, 16 insertions, 0 deletions

diff --git a/src/constants.rs b/src/constants.rs
index 1677828..3e7ac12 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -1,3 +1,19 @@
+// Map, wardley map editor for linux
+// Copyright (C) 2026 Rubén Beltrán del Río
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 // Zoom configuration
 pub const MIN_ZOOM: f64 = 0.1;
 pub const MAX_ZOOM: f64 = 2.0;