Vaibhav Surve
a5dd5e19fc
- Created CMakeLists.txt for Flutter and runner components. - Implemented resource script (Runner.rc) for application metadata. - Developed main entry point (main.cpp) for the Windows application. - Added FlutterWindow class to manage the Flutter view within a Win32 window. - Implemented utility functions for console management and command line argument parsing. - Established Win32Window class for high DPI-aware window handling. - Included application icon and manifest for proper Windows integration. - Set up build configurations and dependencies for the Flutter application on Windows.
59 lines
1.7 KiB
Dart
59 lines
1.7 KiB
Dart
import 'dart:math';
|
|
|
|
import 'package:flutter/material.dart';
|
|
|
|
class MyTabIndicationPainter extends CustomPainter {
|
|
late Paint painter;
|
|
late double dxTarget;
|
|
late double dxEntry;
|
|
late double radius;
|
|
late double dy;
|
|
final double indicatorWidth, xPadding, indicatorRadius, yPadding;
|
|
|
|
final PageController? pageController;
|
|
final Color? selectedBackground;
|
|
|
|
MyTabIndicationPainter(
|
|
{required this.indicatorWidth,
|
|
required this.xPadding,
|
|
required this.indicatorRadius,
|
|
required this.yPadding,
|
|
this.pageController,
|
|
this.selectedBackground})
|
|
: super(repaint: pageController) {
|
|
dxTarget = indicatorWidth;
|
|
dxEntry = xPadding;
|
|
radius = indicatorRadius;
|
|
dy = yPadding;
|
|
painter = Paint()
|
|
..color = selectedBackground!
|
|
..style = PaintingStyle.fill;
|
|
}
|
|
|
|
@override
|
|
void paint(Canvas canvas, Size size) {
|
|
final pos = pageController!.position;
|
|
double fullExtent =
|
|
(pos.maxScrollExtent - pos.minScrollExtent + pos.viewportDimension);
|
|
|
|
double pageOffset = pos.extentBefore / fullExtent;
|
|
|
|
bool left2right = dxEntry < dxTarget;
|
|
Offset entry = Offset(left2right ? dxEntry : dxTarget, dy);
|
|
Offset target = Offset(left2right ? dxTarget : dxEntry, dy);
|
|
|
|
Path path = Path();
|
|
path.addArc(
|
|
Rect.fromCircle(center: entry, radius: radius), 0.5 * pi, 1 * pi);
|
|
path.addRect(Rect.fromLTRB(entry.dx, dy - radius, target.dx, dy + radius));
|
|
path.addArc(
|
|
Rect.fromCircle(center: target, radius: radius), 1.5 * pi, 1 * pi);
|
|
|
|
canvas.translate(size.width * pageOffset, 0.0);
|
|
canvas.drawPath(path, painter);
|
|
}
|
|
|
|
@override
|
|
bool shouldRepaint(MyTabIndicationPainter oldDelegate) => true;
|
|
}
|