How to add multiple text watermark over an image using Flutter? - flutter

Question

I am trying to implement an app in flutter which will add multiple text watermark over the image. But using my code I am not getting exact result
Here is my code I have written
main.dart file
import 'package:flutter/material.dart';
import 'package:test_app1/watarmark.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
#override
initState() {
super.initState();
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Card(
child: Container(
// width: double.infinity,
height: 250,
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('assets/images/image.jpg'),
fit: BoxFit.fitWidth,
alignment: Alignment.topCenter,
),
),
child: Watarmark(
rowCount: 3,
columnCount: 9,
text: "My DigiShell",
),
clipBehavior: Clip.antiAlias,
),
),
),
);
}
}
And the watermark.dart page is as below
import 'dart:math';
import 'package:flutter/material.dart';
class Watarmark extends StatelessWidget {
final int rowCount;
final int columnCount;
final String text;
const Watarmark(
{Key key,
#required this.rowCount,
#required this.columnCount,
#required this.text})
: super(key: key);
#override
Widget build(BuildContext context) {
return IgnorePointer(
child: Container(
child: Column(
children: creatColumnWidgets(),
)),
);
}
List<Widget> creatRowWdiges() {
List<Widget> list = [];
for (var i = 0; i < rowCount; i++) {
final widget = Expanded(
child: Center(
child: Transform.rotate(
angle: - pi / 10,
child: Text(
text,
style: TextStyle(
color: Colors.blue, // Color(0x08000000),
fontSize: 14,
decoration: TextDecoration.none),
),
)));
list.add(widget);
}
return list;
}
List<Widget> creatColumnWidgets() {
List<Widget> list = [];
for (var i = 0; i < columnCount; i++) {
final widget = Expanded(
child: Row(
children: creatRowWdiges(),
));
list.add(widget);
}
return list;
}
}
Using the code I am getting the output like this
In the picture text is being overflowed from the image. I want the text just on the image only.
First I was trying to implement using Stack it was also overflowing, it was not clipped.
I will share the watermarked image taking a screenshot dynamically only on a widget
Here is the output of using stack