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flutter_desktop: win scale cursor data

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Signed-off-by: fufesou <shuanglongchen@yeah.net>
This commit is contained in:
fufesou
2022-10-27 18:40:45 +08:00
parent 6756b67492
commit 0d5eb639a0
4 changed files with 48 additions and 8 deletions
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45
flutter/lib/models/model.dart
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@@ -17,6 +17,7 @@ import 'package:flutter_hbb/models/user_model.dart';
import 'package:flutter_hbb/utils/multi_window_manager.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:tuple/tuple.dart';
import 'package:image/image.dart' as img2;
import 'package:flutter_custom_cursor/flutter_custom_cursor.dart';
import 'package:flutter_svg/flutter_svg.dart';
@@ -665,7 +666,9 @@ class CanvasModel with ChangeNotifier {
class CursorData {
final String peerId;
final int id;
final Uint8List? data;
final img2.Image? image;
double scale;
Uint8List? data;
final double hotx;
final double hoty;
final int width;
@@ -674,6 +677,8 @@ class CursorData {
CursorData({
required this.peerId,
required this.id,
required this.image,
required this.scale,
required this.data,
required this.hotx,
required this.hoty,
@@ -683,8 +688,34 @@ class CursorData {
int _doubleToInt(double v) => (v * 10e6).round().toInt();
String key(double scale) =>
'${peerId}_${id}_${_doubleToInt(width * scale)}_${_doubleToInt(height * scale)}';
double _checkUpdateScale(double scale) {
// Update data if scale changed.
if (Platform.isWindows) {
final tgtWidth = (width * scale).toInt();
final tgtHeight = (width * scale).toInt();
if (tgtWidth < kMinCursorSize || tgtHeight < kMinCursorSize) {
double sw = kMinCursorSize.toDouble() / width;
double sh = kMinCursorSize.toDouble() / height;
scale = sw < sh ? sh : sw;
}
if (_doubleToInt(this.scale) != _doubleToInt(scale)) {
data = img2
.copyResize(
image!,
width: (width * scale).toInt(),
height: (height * scale).toInt(),
)
.getBytes();
}
}
this.scale = scale;
return scale;
}
String updateGetKey(double scale) {
scale = _checkUpdateScale(scale);
return '${peerId}_${id}_${_doubleToInt(width * scale)}_${_doubleToInt(height * scale)}';
}
}
class CursorModel with ChangeNotifier {
@@ -864,15 +895,21 @@ class CursorModel with ChangeNotifier {
_updateCacheLinux(ui.Image image, int id, int w, int h) async {
ByteData? data;
img2.Image? image2;
if (Platform.isWindows) {
data = await image.toByteData(format: ui.ImageByteFormat.rawRgba);
if (data != null) {
image2 = img2.Image.fromBytes(w, h, data.buffer.asUint8List());
}
} else {
data = await image.toByteData(format: ui.ImageByteFormat.png);
}
_cacheLinux = CursorData(
peerId: this.id,
data: data?.buffer.asUint8List(),
id: id,
image: image2,
scale: 1.0,
data: data?.buffer.asUint8List(),
hotx: _hotx,
hoty: _hoty,
width: w,