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feat: add smooth focus transition animation for opacity and border

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This adds animated transitions when switching focus between windows.
Both window opacity and border color now fade smoothly using cubic
bezier easing instead of changing instantly.

Implementation:
- Added animation_duration_focus config option (default 400ms)
- Added animation_curve_focus for cubic bezier easing curve
- Window opacity and border color animate together when focus changes
- Uses existing animation infrastructure (baked bezier points)

The feature is backwards compatible and can be disabled by setting
animation_duration_focus=0 in config file.

Changes affect 5 files with minimal additions to keep code clean.
This commit is contained in:
Szymon Rączka
2025-10-31 22:33:38 +01:00
parent 5bb149f84e
commit 8f706688de
5 changed files with 86 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/config/parse_config.h
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@@ -178,10 +178,12 @@ typedef struct {
uint32_t animation_duration_open;
uint32_t animation_duration_tag;
uint32_t animation_duration_close;
uint32_t animation_duration_focus;
double animation_curve_move[4];
double animation_curve_open[4];
double animation_curve_tag[4];
double animation_curve_close[4];
double animation_curve_focus[4];
int scroller_structs;
float scroller_default_proportion;
@@ -1132,6 +1134,8 @@ void parse_option(Config *config, char *key, char *value) {
config->animation_duration_tag = atoi(value);
} else if (strcmp(key, "animation_duration_close") == 0) {
config->animation_duration_close = atoi(value);
} else if (strcmp(key, "animation_duration_focus") == 0) {
config->animation_duration_focus = atoi(value);
} else if (strcmp(key, "animation_curve_move") == 0) {
int num = parse_double_array(value, config->animation_curve_move, 4);
if (num != 4) {
@@ -1157,6 +1161,13 @@ void parse_option(Config *config, char *key, char *value) {
"Error: Failed to parse animation_curve_close: %s\n",
value);
}
} else if (strcmp(key, "animation_curve_focus") == 0) {
int num = parse_double_array(value, config->animation_curve_focus, 4);
if (num != 4) {
fprintf(stderr,
"Error: Failed to parse animation_curve_focus: %s\n",
value);
}
} else if (strcmp(key, "scroller_structs") == 0) {
config->scroller_structs = atoi(value);
} else if (strcmp(key, "scroller_default_proportion") == 0) {
@@ -2595,6 +2606,8 @@ void override_config(void) {
animation_duration_tag = CLAMP_INT(config.animation_duration_tag, 1, 50000);
animation_duration_close =
CLAMP_INT(config.animation_duration_close, 1, 50000);
animation_duration_focus =
CLAMP_INT(config.animation_duration_focus, 1, 50000);
// 滚动布局设置
scroller_default_proportion =
@@ -2727,6 +2740,8 @@ void override_config(void) {
sizeof(animation_curve_tag));
memcpy(animation_curve_close, config.animation_curve_close,
sizeof(animation_curve_close));
memcpy(animation_curve_focus, config.animation_curve_focus,
sizeof(animation_curve_focus));
}
void set_value_default() {
@@ -2749,6 +2764,8 @@ void set_value_default() {
animation_duration_tag; // Animation tag speed
config.animation_duration_close =
animation_duration_close; // Animation tag speed
config.animation_duration_focus =
animation_duration_focus; // Animation focus opacity speed
/* appearance */
config.axis_bind_apply_timeout =
@@ -2866,6 +2883,8 @@ void set_value_default() {
sizeof(animation_curve_tag));
memcpy(config.animation_curve_close, animation_curve_close,
sizeof(animation_curve_close));
memcpy(config.animation_curve_focus, animation_curve_focus,
sizeof(animation_curve_focus));
memcpy(config.rootcolor, rootcolor, sizeof(rootcolor));
memcpy(config.bordercolor, bordercolor, sizeof(bordercolor));