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-rw-r--r--sway/input/cursor.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index 944ad8eb..64b95e7d 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -1,4 +1,5 @@
#define _XOPEN_SOURCE 700
+#include <math.h>
#ifdef __linux__
#include <linux/input-event-codes.h>
#elif __FreeBSD__
@@ -262,18 +263,11 @@ static void handle_touch_motion(struct wl_listener *listener, void *data) {
}
static double apply_mapping_from_coord(double low, double high, double value) {
- if (value == -1) {
+ if (isnan(value)) {
return value;
}
- value = (value - low) / (high - low);
- if (value < 0) {
- return 0;
- } else if (value > 1) {
- return 1;
- } else {
- return value;
- }
+ return (value - low) / (high - low);
}
static void apply_mapping_from_region(struct wlr_input_device *device,
@@ -300,7 +294,7 @@ static void handle_tool_axis(struct wl_listener *listener, void *data) {
struct wlr_event_tablet_tool_axis *event = data;
struct sway_input_device *input_device = event->device->data;
- double x = -1, y = -1;
+ double x = NAN, y = NAN;
if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) {
x = event->x;
}