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Fix: Initial startup window position for multi-monitor setups. #447

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Fix: Initial startup window position for multi-monitor setups. #447

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6badab4
fix: setPosition
zzl221000 Apr 3, 2026
49810aa
fix: setPosition
zzl221000 Apr 3, 2026
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18 changes: 16 additions & 2 deletions lib/desktop/desktop_window_controller.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,8 @@ class DesktopWindowController with WindowListener {
final shouldRestorePos = validatedPos != null && !isMac;
if (shouldRestorePos) {
try {
await windowManager.setPosition(validatedPos);
final logicPos = await _physicalToLogical(validatedPos);
await windowManager.setPosition(logicPos);
} catch (_) {}
}
// Only auto-restore maximize on Windows; macOS restore may cause jump.
Expand All @@ -81,7 +82,20 @@ class DesktopWindowController with WindowListener {

_attachListeners();
}

/// 将物理像素坐标转换为逻辑坐标
/// Windows上 window_manager 返回物理像素，需除以所在屏幕的 devicePixelRatio
Future<Offset> _physicalToLogical(Offset physicalPos) async {
try {
final display = await ScreenRetriever.instance.getPrimaryDisplay();
if (display.visiblePosition == null || display.visibleSize == null){
return physicalPos; // fallback
}
final scale = display.scaleFactor ?? 1.0;
return Offset(physicalPos.dx / scale, physicalPos.dy / scale);
} catch (_) {}
return physicalPos; // fallback
}

/// Returns [position] if at least a portion of the window (defined by
/// [windowSize]) would be visible on any connected display; otherwise
/// returns `null` so the OS can place the window at a default location.
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