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gesture updates for mobile

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This commit is contained in:
Nick Fisher
2023-10-11 15:09:32 +08:00
parent 78af8e12a0
commit e3408625bc
1 changed files with 24 additions and 18 deletions
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42
lib/widgets/filament_gesture_detector_mobile.dart
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@@ -110,6 +110,7 @@ class _FilamentGestureDetectorMobileState
} }
Timer? _scrollTimer; Timer? _scrollTimer;
double _lastScale = 0;
// pinch zoom on mobile // pinch zoom on mobile
// couldn't find any equivalent for pointerCount in Listener so we use two widgets: // couldn't find any equivalent for pointerCount in Listener so we use two widgets:
@@ -133,33 +134,26 @@ class _FilamentGestureDetectorMobileState
onScaleStart: (d) async { onScaleStart: (d) async {
if (d.pointerCount == 2) { if (d.pointerCount == 2) {
_scaling = true; _scaling = true;
widget.controller.zoomBegin(); await widget.controller.zoomBegin();
} else if (!_scaling) { } else if (!_scaling) {
if (_rotateOnPointerMove) { if (_rotateOnPointerMove) {
widget.controller widget.controller.rotateStart(
.rotateStart(d.focalPoint.dx, d.focalPoint.dy); d.localFocalPoint.dx, d.localFocalPoint.dy);
} else { } else {
widget.controller widget.controller
.panStart(d.focalPoint.dx, d.focalPoint.dy); .panStart(d.localFocalPoint.dx, d.localFocalPoint.dy);
}
}
},
onScaleEnd: (d) async {
if (d.pointerCount == 2) {
widget.controller.zoomEnd();
_scaling = false;
} else if (!_scaling) {
if (_rotateOnPointerMove) {
widget.controller.rotateEnd();
} else {
widget.controller.panEnd();
} }
} }
}, },
onScaleUpdate: (ScaleUpdateDetails d) async { onScaleUpdate: (ScaleUpdateDetails d) async {
if (d.pointerCount == 2) { if (d.pointerCount == 2) {
widget.controller.zoomUpdate(d.localFocalPoint.dx, if (d.horizontalScale != _lastScale) {
d.localFocalPoint.dy, d.horizontalScale > 1 ? 0.1 : -0.1); widget.controller.zoomUpdate(
d.localFocalPoint.dx,
d.localFocalPoint.dy,
d.horizontalScale > _lastScale ? 0.1 : -0.1);
_lastScale = d.horizontalScale;
}
} else if (!_scaling) { } else if (!_scaling) {
if (_rotateOnPointerMove) { if (_rotateOnPointerMove) {
widget.controller widget.controller
@@ -170,6 +164,18 @@ class _FilamentGestureDetectorMobileState
} }
} }
}, },
onScaleEnd: (d) async {
if (d.pointerCount == 2) {
widget.controller.zoomEnd();
} else if (!_scaling) {
if (_rotateOnPointerMove) {
widget.controller.rotateEnd();
} else {
widget.controller.panEnd();
}
}
_scaling = false;
},
child: widget.child)), child: widget.child)),
widget.showControlOverlay widget.showControlOverlay
? Align( ? Align(