feat: add wheel scroll factor

src/config/parse_config.h

@@ -265,6 +265,8 @@ typedef struct {
 	uint32_t send_events_mode;
 	uint32_t button_map;
 
+	double axis_scroll_factor;
+
 	int blur;
 	int blur_layer;
 	int blur_optimized;
@@ -1504,6 +1506,8 @@ void parse_option(Config *config, char *key, char *value) {
 		config->send_events_mode = atoi(value);
 	} else if (strcmp(key, "button_map") == 0) {
 		config->button_map = atoi(value);
+	} else if (strcmp(key, "axis_scroll_factor") == 0) {
+		config->axis_scroll_factor = atof(value);
 	} else if (strcmp(key, "gappih") == 0) {
 		config->gappih = atoi(value);
 	} else if (strcmp(key, "gappiv") == 0) {
@@ -2780,6 +2784,7 @@ void override_config(void) {
 	click_method = CLAMP_INT(config.click_method, 0, 2);
 	send_events_mode = CLAMP_INT(config.send_events_mode, 0, 2);
 	button_map = CLAMP_INT(config.button_map, 0, 1);
+	axis_scroll_factor = CLAMP_FLOAT(config.axis_scroll_factor, 0.1f, 10.0f);
 
 	// 外观设置
 	gappih = CLAMP_INT(config.gappih, 0, 1000);
@@ -2907,6 +2912,7 @@ void set_value_default() {
 	config.exchange_cross_monitor = exchange_cross_monitor;
 	config.scratchpad_cross_monitor = scratchpad_cross_monitor;
 	config.focus_cross_tag = focus_cross_tag;
+	config.axis_scroll_factor = axis_scroll_factor;
 	config.view_current_to_back = view_current_to_back;
 	config.single_scratchpad = single_scratchpad;
 	config.xwayland_persistence = xwayland_persistence;

src/config/preset.h

@@ -178,6 +178,8 @@ LIBINPUT_CONFIG_CLICK_METHOD_CLICKFINGER
 enum libinput_config_click_method click_method =
 	LIBINPUT_CONFIG_CLICK_METHOD_BUTTON_AREAS;
 
+double axis_scroll_factor = 1.0;
+
 /* You can choose between:
 LIBINPUT_CONFIG_SEND_EVENTS_ENABLED
 LIBINPUT_CONFIG_SEND_EVENTS_DISABLED

src/mango.c

@@ -1711,10 +1711,11 @@ axisnotify(struct wl_listener *listener, void *data) {
 	 * implemented checking the event's orientation and the delta of the event
 	 */
 	/* Notify the client with pointer focus of the axis event. */
-	wlr_seat_pointer_notify_axis(seat, // 滚轮事件发送给客户端也就是窗口
-								 event->time_msec, event->orientation,
-								 event->delta, event->delta_discrete,
-								 event->source, event->relative_direction);
+	wlr_seat_pointer_notify_axis(
+		seat, // 滚轮事件发送给客户端也就是窗口
+		event->time_msec, event->orientation, event->delta * axis_scroll_factor,
+		roundf(event->delta_discrete * axis_scroll_factor), event->source,
+		event->relative_direction);
 }
 
 int ongesture(struct wlr_pointer_swipe_end_event *event) {