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Convert touchpad absolute events to relative.

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This commit is contained in:
Kristian Høgsberg 2008-11-25 23:16:31 -05:00
parent 18fb78307b
commit 0ee84083a2
1 changed files with 20 additions and 4 deletions
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24
evdev.c
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@ -13,8 +13,8 @@ struct wl_input_device {
struct wl_event_source *source;
struct wl_display *display;
int fd;
int tool;
int32_t x, y;
int tool, new_x, new_y;
int32_t x, y, base_x, base_y;
};
static const struct wl_method input_device_methods[] = {
@ -65,10 +65,18 @@ static void wl_input_device_data(int fd, uint32_t mask, void *data)
absolute_event = 1;
switch (e->code) {
case ABS_X:
device->x = value;
if (device->new_x) {
device->base_x = device->x - value;
device->new_x = 0;
}
device->x = device->base_x + value;
break;
case ABS_Y:
device->y = value;
if (device->new_y) {
device->base_y = device->y - value;
device->new_y = 0;
}
device->y = device->base_y + value;
break;
}
break;
@ -87,6 +95,10 @@ static void wl_input_device_data(int fd, uint32_t mask, void *data)
case BTN_TOOL_FINGER:
case BTN_TOOL_MOUSE:
case BTN_TOOL_LENS:
if (device->tool == 0 && value) {
device->new_x = 1;
device->new_y = 1;
}
device->tool = value ? e->code : 0;
break;
@ -135,6 +147,10 @@ wl_input_device_create(struct wl_display *display, const char *path)
device->base.interface = &input_device_interface;
device->display = display;
device->tool = 1;
device->x = 100;
device->y = 100;
device->new_x = 1;
device->new_y = 1;
device->fd = open(path, O_RDONLY);
if (device->fd < 0) {