input/tablet: add tool_mode option to set tablet tools as relative input

Closes #4139.

1 files changed, 6 insertions, 0 deletions

diff --git a/include/sway/input/tablet.h b/include/sway/input/tablet.h
index f30e232a..d7e4c242 100644
--- a/include/sway/input/tablet.h
+++ b/include/sway/input/tablet.h
@@ -11,11 +11,17 @@ struct sway_tablet {
 	struct wlr_tablet_v2_tablet *tablet_v2;
 };
 
+enum sway_tablet_tool_mode {
+	SWAY_TABLET_TOOL_MODE_ABSOLUTE,
+	SWAY_TABLET_TOOL_MODE_RELATIVE,
+};
+
 struct sway_tablet_tool {
 	struct sway_seat *seat;
 	struct sway_tablet *tablet;
 	struct wlr_tablet_v2_tablet_tool *tablet_v2_tool;
 
+	enum sway_tablet_tool_mode mode;
 	double tilt_x, tilt_y;
 
 	struct wl_listener set_cursor;