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ui: Shorten references into InputEvent

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An upcoming patch will alter how simple unions, like InputEvent, are
laid out, which will impact all lines of the form 'evt->u.XXX'
(expanding it to the longer 'evt->u.XXX.data').  For better
legibility in that patch, and less need for line wrapping, it's better
to use a temporary variable to reduce the effect of a layout change to
just the variable initializations, rather than every reference within
an InputEvent.

There was one instance in hid.c:hid_pointer_event() where the code
was referring to evt->u.rel inside the case label where evt->u.abs
is the correct name; thankfully, both members of the union have the
same type, so it happened to work, but it is now cleaner.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-8-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2016-03-03 09:16:49 -07:00 • committed by Markus Armbruster
parent 0399293e5b
commit b5a1b44318
7 changed files with 129 additions and 89 deletions
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12
hw/char/escc.c
View file

@ -842,14 +842,16 @@ static void sunkbd_handle_event(DeviceState *dev, QemuConsole *src,
{
ChannelState *s = (ChannelState *)dev;
int qcode, keycode;
InputKeyEvent *key;
assert(evt->type == INPUT_EVENT_KIND_KEY);
qcode = qemu_input_key_value_to_qcode(evt->u.key->key);
key = evt->u.key;
qcode = qemu_input_key_value_to_qcode(key->key);
trace_escc_sunkbd_event_in(qcode, QKeyCode_lookup[qcode],
evt->u.key->down);
key->down);
if (qcode == Q_KEY_CODE_CAPS_LOCK) {
if (evt->u.key->down) {
if (key->down) {
s->caps_lock_mode ^= 1;
if (s->caps_lock_mode == 2) {
return; /* Drop second press */
@ -863,7 +865,7 @@ static void sunkbd_handle_event(DeviceState *dev, QemuConsole *src,
}
if (qcode == Q_KEY_CODE_NUM_LOCK) {
if (evt->u.key->down) {
if (key->down) {
s->num_lock_mode ^= 1;
if (s->num_lock_mode == 2) {
return; /* Drop second press */
@ -877,7 +879,7 @@ static void sunkbd_handle_event(DeviceState *dev, QemuConsole *src,
}
keycode = qcode_to_keycode[qcode];
if (!evt->u.key->down) {
if (!key->down) {
keycode |= 0x80;
}
trace_escc_sunkbd_event_out(keycode);