Introduce convenience function for device dimensions

The capability names are rather lengthy; this patch adds convenience
functions for the dimension capabilities.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 2 insertions, 6 deletions

diff --git a/src/multitouch.c b/src/multitouch.c
index 2919b9d..fd2393f 100644
--- a/src/multitouch.c
+++ b/src/multitouch.c
@@ -185,12 +185,8 @@ static void handle_gestures(LocalDevicePtr local,
                             const struct Capabilities *caps)
 {
         static int vscroll, hscroll;
-        int vstep = 1 +
-                vscroll_fraction * (caps->abs_position_y.maximum -
-                                    caps->abs_position_y.minimum);
-        int hstep = 1 +
-                hscroll_fraction * (caps->abs_position_x.maximum -
-                                    caps->abs_position_x.minimum);
+        int vstep = 1 + vscroll_fraction * get_cap_ysize(caps);
+        int hstep = 1 + hscroll_fraction * get_cap_xsize(caps);
         int i;
         for (i = 0; i < DIM_BUTTON; i++) {
                 if (GETBIT(gs->btmask, i)) {