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input: Add weston_pointer_clamp function to ensure pointer visible

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This refactors the code out from clip_pointer_motion into a function of
its own which can then be used elsewhere to clamp the pointer
coordinates to the range of the outputs.

This change also makes the caller of clip_pointer_motion use this new
function.
This commit is contained in:
Rob Bradford
2013-06-25 18:56:41 +01:00
committed by Kristian Høgsberg
parent 1d697d7adf
commit 806d8c0b78
2 changed files with 9 additions and 6 deletions
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src/compositor.h
+3
View File
@@ -345,6 +345,9 @@ weston_pointer_start_grab(struct weston_pointer *pointer,
struct weston_pointer_grab *grab);
void
weston_pointer_end_grab(struct weston_pointer *pointer);
void
weston_pointer_clamp(struct weston_pointer *pointer,
wl_fixed_t *fx, wl_fixed_t *fy);
struct weston_keyboard *
weston_keyboard_create(void);
src/input.c
+6 -6
View File
@@ -561,17 +561,17 @@ weston_touch_end_grab(struct weston_touch *touch)
touch->grab = &touch->default_grab;
}
static void
clip_pointer_motion(struct weston_seat *seat, wl_fixed_t *fx, wl_fixed_t *fy)
WL_EXPORT void
weston_pointer_clamp(struct weston_pointer *pointer, wl_fixed_t *fx, wl_fixed_t *fy)
{
struct weston_compositor *ec = seat->compositor;
struct weston_compositor *ec = pointer->seat->compositor;
struct weston_output *output, *prev = NULL;
int x, y, old_x, old_y, valid = 0;
x = wl_fixed_to_int(*fx);
y = wl_fixed_to_int(*fy);
old_x = wl_fixed_to_int(seat->pointer->x);
old_y = wl_fixed_to_int(seat->pointer->y);
old_x = wl_fixed_to_int(pointer->x);
old_y = wl_fixed_to_int(pointer->y);
wl_list_for_each(output, &ec->output_list, link) {
if (pixman_region32_contains_point(&output->region,
@@ -605,7 +605,7 @@ move_pointer(struct weston_seat *seat, wl_fixed_t x, wl_fixed_t y)
struct weston_output *output;
int32_t ix, iy;
clip_pointer_motion(seat, &x, &y);
weston_pointer_clamp (pointer, &x, &y);
pointer->x = x;
pointer->y = y;