pax/booru-viewer
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Code Issues Releases 18 Activity

preview_pane: accumulate scroll delta for volume control

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Hi-res scroll mice (e.g. G502) send many small angleDelta events
per physical notch instead of one ±120. Without accumulation, each
micro-event triggered a ±5 volume jump, making volume unusable on
hi-res hardware. Now accumulates to ±120 boundaries before firing.

behavior change
This commit is contained in:
pax 2026-04-11 20:06:22 -05:00
parent 553734fe79
commit ebaacb8a25
1 changed files with 6 additions and 3 deletions
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9
booru_viewer/gui/preview_pane.py
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@ -51,6 +51,7 @@ class ImagePreview(QWidget):
self._is_bookmarked = False # tracks bookmark state for the button submenu
self._current_tags: dict[str, list[str]] = {}
self._current_tag_list: list[str] = []
self._vol_scroll_accum = 0
layout = QVBoxLayout(self)
layout.setContentsMargins(0, 0, 0, 0)
@ -405,9 +406,11 @@ class ImagePreview(QWidget):
self.navigate.emit(1)
return
if self._stack.currentIndex() == 1:
delta = event.angleDelta().y()
if delta:
vol = max(0, min(100, self._video_player.volume + (5 if delta > 0 else -5)))
self._vol_scroll_accum += event.angleDelta().y()
steps = self._vol_scroll_accum // 120
if steps:
self._vol_scroll_accum -= steps * 120
vol = max(0, min(100, self._video_player.volume + 5 * steps))
self._video_player.volume = vol
else:
super().wheelEvent(event)