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flutter_desktop: show cursor

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Signed-off-by: fufesou <shuanglongchen@yeah.net>
This commit is contained in:
fufesou
2022-09-07 02:14:52 -07:00
parent 70c4726766
commit 1bf9700da6
2 changed files with 41 additions and 27 deletions
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48
flutter/lib/models/model.dart
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@@ -4,6 +4,7 @@ import 'dart:io';
import 'dart:math';
import 'dart:typed_data';
import 'dart:ui' as ui;
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
@@ -595,8 +596,9 @@ class CanvasModel with ChangeNotifier {
class CursorModel with ChangeNotifier {
ui.Image? _image;
Uint8List? _rgba;
final _images = <int, Tuple4<Uint8List, ui.Image, double, double>>{};
final _images = <int, Tuple3<ui.Image, double, double>>{};
Uint8List? _pngData;
final _pngs = <int, Uint8List?>{};
double _x = -10000;
double _y = -10000;
double _hotx = 0;
@@ -607,7 +609,7 @@ class CursorModel with ChangeNotifier {
WeakReference<FFI> parent;
ui.Image? get image => _image;
Uint8List? get rgba => _rgba;
Uint8List? get pngData => _pngData;
double get x => _x - _displayOriginX;
@@ -757,26 +759,34 @@ class CursorModel with ChangeNotifier {
var pid = parent.target?.id;
ui.decodeImageFromPixels(rgba, width, height, ui.PixelFormat.rgba8888,
(image) {
if (parent.target?.id != pid) return;
_image = image;
_rgba = rgba;
_images[id] = Tuple4(rgba, image, _hotx, _hoty);
try {
// my throw exception, because the listener maybe already dispose
notifyListeners();
} catch (e) {
debugPrint('notify cursor: $e');
}
() async {
if (parent.target?.id != pid) return;
_image = image;
_images[id] = Tuple3(image, _hotx, _hoty);
final data = await image.toByteData(format: ImageByteFormat.png);
if (data != null) {
_pngData = data.buffer.asUint8List();
} else {
_pngData = null;
}
_pngs[id] = _pngData;
try {
// my throw exception, because the listener maybe already dispose
notifyListeners();
} catch (e) {
debugPrint('notify cursor: $e');
}
}();
});
}
void updateCursorId(Map<String, dynamic> evt) {
_pngData = _pngs[int.parse(evt['id'])];
final tmp = _images[int.parse(evt['id'])];
if (tmp != null) {
_rgba = tmp.item1;
_image = tmp.item2;
_hotx = tmp.item3;
_hoty = tmp.item4;
_image = tmp.item1;
_hotx = tmp.item2;
_hoty = tmp.item3;
notifyListeners();
}
}
@@ -786,7 +796,7 @@ class CursorModel with ChangeNotifier {
_x = double.parse(evt['x']);
_y = double.parse(evt['y']);
try {
RemoteCursorMovedState.find(id).value = false;
RemoteCursorMovedState.find(id).value = true;
} catch (e) {
//
}
@@ -1011,7 +1021,7 @@ class FFI {
Peer.fromJson(s[0] as String, s[1] as Map<String, dynamic>))
.toList();
} catch (e) {
print('peers(): $e');
debugPrint('peers(): $e');
}
return [];
}