Vaibhav Surve
d208648350
- Implemented TimestampImageHelper to add timestamps to images. - Updated AttendanceController to apply timestamps when capturing images. - Enhanced AddExpenseController to process images with timestamps. - Modified ReportTaskActionController and ReportTaskController to include timestamping for images. - Updated UI components to show loading indicators while processing images. - Refactored image picking logic to handle timestamping and loading states.
98 lines
3.1 KiB
Dart
98 lines
3.1 KiB
Dart
import 'dart:io';
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import 'dart:ui' as ui;
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import 'package:marco/helpers/services/app_logger.dart';
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class TimestampImageHelper {
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/// Adds a timestamp to an image file and returns a new File
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static Future<File> addTimestamp({
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required File imageFile,
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Color textColor = Colors.white,
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double fontSize = 60,
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Color backgroundColor = Colors.black54,
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double padding = 40,
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double bottomPadding = 60,
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}) async {
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try {
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// Read the image file
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final bytes = await imageFile.readAsBytes();
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final originalImage = await decodeImageFromList(bytes);
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// Create a canvas
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final recorder = ui.PictureRecorder();
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final canvas = Canvas(recorder);
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// Draw original image
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final paint = Paint();
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canvas.drawImage(originalImage, Offset.zero, paint);
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// Timestamp text
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final now = DateTime.now();
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final timestamp = DateFormat('dd MMM yyyy hh:mm:ss a').format(now);
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final textStyle = ui.TextStyle(
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color: textColor,
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fontSize: fontSize,
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fontWeight: FontWeight.bold,
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shadows: [
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const ui.Shadow(
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color: Colors.black,
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offset: Offset(3, 3),
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blurRadius: 6,
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),
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],
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);
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final paragraphStyle = ui.ParagraphStyle(textAlign: TextAlign.left);
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final paragraphBuilder = ui.ParagraphBuilder(paragraphStyle)
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..pushStyle(textStyle)
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..addText(timestamp);
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final paragraph = paragraphBuilder.build();
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paragraph.layout(const ui.ParagraphConstraints(width: double.infinity));
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final textWidth = paragraph.maxIntrinsicWidth;
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final yPosition = originalImage.height - paragraph.height - bottomPadding;
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final xPosition = (originalImage.width - textWidth) / 2;
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// Draw background
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final backgroundPaint = Paint()
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..color = backgroundColor
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..style = PaintingStyle.fill;
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final backgroundRect = Rect.fromLTWH(
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xPosition - padding,
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yPosition - 15,
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textWidth + padding * 2,
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paragraph.height + 30,
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);
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canvas.drawRRect(
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RRect.fromRectAndRadius(backgroundRect, const Radius.circular(8)),
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backgroundPaint,
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);
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// Draw timestamp text
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canvas.drawParagraph(paragraph, Offset(xPosition, yPosition));
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// Convert canvas to image
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final picture = recorder.endRecording();
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final img = await picture.toImage(originalImage.width, originalImage.height);
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final byteData = await img.toByteData(format: ui.ImageByteFormat.png);
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final buffer = byteData!.buffer.asUint8List();
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// Save to temporary file
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final tempDir = await Directory.systemTemp.createTemp();
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final timestampedFile = File('${tempDir.path}/timestamped_${DateTime.now().millisecondsSinceEpoch}.png');
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await timestampedFile.writeAsBytes(buffer);
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return timestampedFile;
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} catch (e, stacktrace) {
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logSafe("Error adding timestamp to image", level: LogLevel.error, error: e, stackTrace: stacktrace);
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return imageFile; // fallback
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}
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}
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}
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