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ensured alpha isn't exceeded, added calculation for alpha_step from animation_duration

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This commit is contained in:
William McKinnon 2023-05-23 01:17:20 -04:00
parent b5410a123c
commit 3f5511d09e
1 changed files with 11 additions and 3 deletions
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14
sway/desktop/output.c
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@ -522,13 +522,21 @@ static bool scan_out_fullscreen_view(struct sway_output *output,
} }
static void containers_tick_alpha(list_t *containers, struct sway_output *output) { static void containers_tick_alpha(list_t *containers, struct sway_output *output) {
// TODO: config for alpha_step // TODO: config for animation_duration
float alpha_step = 0.01; float animation_duration = 0.5;
const long NSEC_IN_SECONDS = 1000000000;
float output_refresh_seconds = (float)output->refresh_nsec / NSEC_IN_SECONDS;
float num_refreshes = animation_duration / output_refresh_seconds;
float alpha_step;
for (int i = 0; i < containers->length; ++i) { for (int i = 0; i < containers->length; ++i) {
struct sway_container *con = containers->items[i]; struct sway_container *con = containers->items[i];
if (con->current_alpha < con->alpha) { if (con->current_alpha < con->alpha) {
alpha_step = (con->alpha) / num_refreshes;
// ensure that the current alpha does not exceed the set alpha for the con
con->current_alpha = MIN(con->current_alpha + alpha_step, con->alpha);
output_damage_whole_container(output, con); output_damage_whole_container(output, con);
con->current_alpha += alpha_step;
} }
} }
} }