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fix: dessin suit le curseur / stylet (S Pen Samsung) #6

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Merged
TheZupZup merged 1 commit into from
Apr 11, 2026
Merged

fix: dessin suit le curseur / stylet (S Pen Samsung) #6

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15 changes: 7 additions & 8 deletions app/lib/widgets/ink_canvas.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -356,13 +356,10 @@ class _InkCanvasState extends State<InkCanvas> {
widget.onStrokesChanged([]);
}

Offset _toCanvasPos(Offset globalPos) {
final box = context.findRenderObject() as RenderBox?;
if (box == null) return globalPos;
final local = box.globalToLocal(globalPos);
Offset _toCanvasPos(Offset localPos) {
return Offset(
(local.dx - _offset.dx) / _scale,
(local.dy - _offset.dy) / _scale,
(localPos.dx - _offset.dx) / _scale,
(localPos.dy - _offset.dy) / _scale,
);
}

Expand Down Expand Up @@ -393,15 +390,17 @@ class _InkCanvasState extends State<InkCanvas> {
child: Listener(
onPointerDown: (e) {
if (e.kind == PointerDeviceKind.stylus ||
e.kind == PointerDeviceKind.invertedStylus ||
e.kind == PointerDeviceKind.mouse ||
e.kind == PointerDeviceKind.touch) {
final pressure = e.pressure > 0 ? e.pressure : 0.5;
_startStroke(_toCanvasPos(e.position), pressure);
_startStroke(_toCanvasPos(e.localPosition), pressure);
}
},
onPointerMove: (e) {
if (_currentStroke == null) return;
final pressure = e.pressure > 0 ? e.pressure : 0.5;
_addPoint(_toCanvasPos(e.position), pressure);
_addPoint(_toCanvasPos(e.localPosition), pressure);
},
onPointerUp: (_) => _endStroke(),
onPointerCancel: (_) => _endStroke(),
Expand Down
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