--- a/client/src/lib/mixins.js	Thu May 02 12:59:52 2019 +0200
+++ b/client/src/lib/mixins.js	Thu May 02 14:44:16 2019 +0200
@@ -120,6 +120,29 @@
         }
       }
       this.pdf.doc.addImage(image, x, y, width, height);
+    },
+    addBox(position, offset, width, height, rounding, color, brcolor) {
+      // x/y defaults to offset for topleft corner (normal x/y coordinates)
+      let x = offset.x;
+      let y = offset.y;
+
+      // if position is on the right, x needs to be calculate with pdf width and
+      // the size of the element
+      if (["topright", "bottomright"].indexOf(position) !== -1) {
+        x = this.pdf.width - offset.x - width;
+      }
+      if (["bottomright", "bottomleft"].indexOf(position) !== -1) {
+        y = this.pdf.height - offset.y - height;
+      }
+
+      this.addRoundedBox(x, y, width, height, color, rounding, brcolor);
+    },
+    addRoundedBox(x, y, w, h, color, rounding, brcolor) {
+      // draws a rounded background box at (x,y) width x height
+      // using jsPDF units
+      this.pdf.doc.setDrawColor(brcolor);
+      this.pdf.doc.setFillColor(color);
+      this.pdf.doc.roundedRect(x, y, w, h, rounding, rounding, "FD");
     }
   }
 };