|
| 1 | +import 'package:flutter/material.dart'; |
| 2 | +import 'package:screen_retriever/screen_retriever.dart'; |
| 3 | + |
| 4 | +Future<Offset> calcWindowPosition( |
| 5 | + Size windowSize, |
| 6 | + Alignment alignment, |
| 7 | +) async { |
| 8 | + Display primaryDisplay = await screenRetriever.getPrimaryDisplay(); |
| 9 | + |
| 10 | + num visibleWidth = primaryDisplay.size.width; |
| 11 | + num visibleHeight = primaryDisplay.size.height; |
| 12 | + num visibleStartX = 0; |
| 13 | + num visibleStartY = 0; |
| 14 | + |
| 15 | + if (primaryDisplay.visibleSize != null) { |
| 16 | + visibleWidth = primaryDisplay.visibleSize!.width; |
| 17 | + visibleHeight = primaryDisplay.visibleSize!.height; |
| 18 | + } |
| 19 | + if (primaryDisplay.visiblePosition != null) { |
| 20 | + visibleStartX = primaryDisplay.visiblePosition!.dx; |
| 21 | + visibleStartY = primaryDisplay.visiblePosition!.dy; |
| 22 | + } |
| 23 | + Offset position = Offset(0, 0); |
| 24 | + |
| 25 | + if (alignment == Alignment.topLeft) { |
| 26 | + position = Offset(0, 0); |
| 27 | + } else if (alignment == Alignment.topCenter) { |
| 28 | + position = Offset( |
| 29 | + visibleStartX + (visibleWidth / 2) - (windowSize.width / 2), |
| 30 | + visibleStartY + 0, |
| 31 | + ); |
| 32 | + } else if (alignment == Alignment.topRight) { |
| 33 | + position = Offset( |
| 34 | + visibleStartX + visibleWidth - windowSize.width, |
| 35 | + visibleStartY + 0, |
| 36 | + ); |
| 37 | + } else if (alignment == Alignment.centerLeft) { |
| 38 | + position = Offset( |
| 39 | + visibleStartX + 0, |
| 40 | + visibleStartY + ((visibleHeight / 2) - (windowSize.height / 2)), |
| 41 | + ); |
| 42 | + } else if (alignment == Alignment.center) { |
| 43 | + position = Offset( |
| 44 | + visibleStartX + (visibleWidth / 2) - (windowSize.width / 2), |
| 45 | + visibleStartY + ((visibleHeight / 2) - (windowSize.height / 2)), |
| 46 | + ); |
| 47 | + } else if (alignment == Alignment.centerRight) { |
| 48 | + position = Offset( |
| 49 | + visibleStartX + visibleWidth - windowSize.width, |
| 50 | + visibleStartY + ((visibleHeight / 2) - (windowSize.height / 2)), |
| 51 | + ); |
| 52 | + } else if (alignment == Alignment.bottomLeft) { |
| 53 | + position = Offset( |
| 54 | + visibleStartX + 0, |
| 55 | + visibleStartY + (visibleHeight - windowSize.height), |
| 56 | + ); |
| 57 | + } else if (alignment == Alignment.bottomCenter) { |
| 58 | + position = Offset( |
| 59 | + visibleStartX + (visibleWidth / 2) - (windowSize.width / 2), |
| 60 | + visibleStartY + (visibleHeight - windowSize.height), |
| 61 | + ); |
| 62 | + } else if (alignment == Alignment.bottomRight) { |
| 63 | + position = Offset( |
| 64 | + visibleStartX + visibleWidth - windowSize.width, |
| 65 | + visibleStartY + (visibleHeight - windowSize.height), |
| 66 | + ); |
| 67 | + } |
| 68 | + |
| 69 | + return position; |
| 70 | +} |
0 commit comments