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compositor-x11: Update axis notifications to follow protocol

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Axis events are in the same coordinate space as motion events, thus
measured in pixels. To emulate axis events for discrete events move the
axis by a number of pixels every step.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
This commit is contained in:
Jonas Ådahl 2012-09-27 18:40:41 +02:00 • committed by Kristian Høgsberg
parent 87b0735273
commit 62efe20cb9
1 changed files with 16 additions and 12 deletions
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28
src/compositor-x11.c
View file

@ -50,6 +50,8 @@
#include "compositor.h"
#include "../shared/config-parser.h"
#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10)
static char *output_name;
static char *output_mode;
static char *output_transform;
@ -660,32 +662,34 @@ x11_compositor_deliver_button_event(struct x11_compositor *c,
button = BTN_RIGHT;
break;
case 4:
/* Axis are measured in pixels, but the xcb events are discrete
* steps. Therefore move the axis by some pixels every step. */
if (state)
notify_axis(&c->core_seat,
weston_compositor_get_time(),
WL_POINTER_AXIS_VERTICAL_SCROLL,
wl_fixed_from_int(1));
weston_compositor_get_time(),
WL_POINTER_AXIS_VERTICAL_SCROLL,
-DEFAULT_AXIS_STEP_DISTANCE);
return;
case 5:
if (state)
notify_axis(&c->core_seat,
weston_compositor_get_time(),
WL_POINTER_AXIS_VERTICAL_SCROLL,
wl_fixed_from_int(-1));
weston_compositor_get_time(),
WL_POINTER_AXIS_VERTICAL_SCROLL,
DEFAULT_AXIS_STEP_DISTANCE);
return;
case 6:
if (state)
notify_axis(&c->core_seat,
weston_compositor_get_time(),
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
wl_fixed_from_int(1));
weston_compositor_get_time(),
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
-DEFAULT_AXIS_STEP_DISTANCE);
return;
case 7:
if (state)
notify_axis(&c->core_seat,
weston_compositor_get_time(),
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
wl_fixed_from_int(-1));
weston_compositor_get_time(),
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
DEFAULT_AXIS_STEP_DISTANCE);
return;
}