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remember cursor, canvas offset and scale

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This commit is contained in:
open-trade
2020-12-21 18:28:28 +08:00
parent 1acb64c35d
commit 5e17a995e6
3 changed files with 132 additions and 26 deletions
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65
flutter_hbb/lib/model.dart
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@@ -2,6 +2,7 @@ import 'package:ffi/ffi.dart';
import 'package:flutter/services.dart';
import 'package:flutter/gestures.dart';
import 'package:path_provider/path_provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:device_info/device_info.dart';
import 'dart:io';
import 'dart:math';
@@ -38,6 +39,7 @@ class FfiModel with ChangeNotifier {
get permissions => _permissions;
get initialized => _initialized;
get display => _display;
get secure => _secure;
get direct => _direct;
get pi => _pi;
@@ -187,7 +189,7 @@ class FfiModel with ChangeNotifier {
}
if (_pi.currentDisplay < _pi.displays.length) {
_display = _pi.displays[_pi.currentDisplay];
FFI.cursorModel.updateDisplayOrigin(_display.x, _display.y);
initializeCursorAndCanvas();
}
if (displays.length > 0) {
showLoading('Waiting for image...', context);
@@ -243,6 +245,13 @@ class CanvasModel with ChangeNotifier {
double get y => _y;
double get scale => _scale;
void update(double x, double y, double scale) {
_x = x;
_y = y;
_scale = scale;
notifyListeners();
}
set scale(v) {
_scale = v;
notifyListeners();
@@ -443,6 +452,16 @@ class CursorModel with ChangeNotifier {
notifyListeners();
}
void updateDisplayOriginWithCursor(
double x, double y, double xCursor, double yCursor) {
_displayOriginX = x;
_displayOriginY = y;
_x = xCursor;
_y = yCursor;
FFI.moveMouse(x, y);
notifyListeners();
}
void clear() {
_x = -10000;
_x = -10000;
@@ -573,6 +592,8 @@ class FFI {
}
static void close() {
savePreference(id, cursorModel.x, cursorModel.y, canvasModel.x,
canvasModel.y, canvasModel.scale, ffiModel.pi.currentDisplay);
id = "";
setByName('close', '');
imageModel.update(null);
@@ -647,3 +668,45 @@ class PeerInfo {
int currentDisplay;
List<Display> displays;
}
void savePreference(String id, double xCursor, double yCursor, double xCanvas,
double yCanvas, double scale, int currentDisplay) async {
SharedPreferences prefs = await SharedPreferences.getInstance();
final p = Map<String, dynamic>();
p['xCursor'] = xCursor;
p['yCursor'] = yCursor;
p['xCanvas'] = xCanvas;
p['yCanvas'] = yCanvas;
p['scale'] = scale;
p['currentDisplay'] = currentDisplay;
prefs.setString('peer' + id, json.encode(p));
}
Future<Map<String, dynamic>> getPreference(String id) async {
SharedPreferences prefs = await SharedPreferences.getInstance();
var p = prefs.getString('peer' + id);
if (p == null) return null;
Map<String, dynamic> m = json.decode(p);
return m;
}
void initializeCursorAndCanvas() async {
var p = await getPreference(FFI.id);
int currentDisplay = 0;
if (p != null) {
currentDisplay = p['currentDisplay'];
}
if (p == null || currentDisplay != FFI.ffiModel.pi.currentDisplay) {
FFI.cursorModel
.updateDisplayOrigin(FFI.ffiModel.display.x, FFI.ffiModel.display.y);
return;
}
double xCursor = p['xCursor'];
double yCursor = p['yCursor'];
double xCanvas = p['xCanvas'];
double yCanvas = p['yCanvas'];
double scale = p['scale'];
FFI.cursorModel.updateDisplayOriginWithCursor(
FFI.ffiModel.display.x, FFI.ffiModel.display.y, xCursor, yCursor);
FFI.canvasModel.update(xCanvas, yCanvas, scale);
}