921582 - How to add text inside a polygon?

Annotations/TextPolygonSample/App.xaml

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+<?xml version = "1.0" encoding = "UTF-8" ?>
+<Application xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:local="clr-namespace:TextPolygonSample"
+             x:Class="TextPolygonSample.App">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="Resources/Styles/Colors.xaml" />
+                <ResourceDictionary Source="Resources/Styles/Styles.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

Annotations/TextPolygonSample/App.xaml.cs

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+namespace TextPolygonSample
+{
+    public partial class App : Application
+    {
+        public App()
+        {
+            Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("Ix0oFS8QJAw9HSQvXkVhQlBad1RDX3xKf0x/TGpQb19xflBPallYVBYiSV9jS3tTfkdnWHdbd3dWRGZUWU91Xg==");
+            InitializeComponent();
+        }
+
+        protected override Window CreateWindow(IActivationState? activationState)
+        {
+            return new Window(new AppShell());
+        }
+    }
+}

Annotations/TextPolygonSample/AppShell.xaml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<Shell
+    x:Class="TextPolygonSample.AppShell"
+    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+    xmlns:local="clr-namespace:TextPolygonSample"
+    Title="TextPolygonSample">
+
+    <ShellContent
+        Title="Home"
+        ContentTemplate="{DataTemplate local:MainPage}"
+        Route="MainPage" />
+
+</Shell>

Annotations/TextPolygonSample/AppShell.xaml.cs

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+namespace TextPolygonSample
+{
+    public partial class AppShell : Shell
+    {
+        public AppShell()
+        {
+            InitializeComponent();
+        }
+    }
+}

Annotations/TextPolygonSample/MainPage.xaml

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+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:syncfusion="clr-namespace:Syncfusion.Maui.PdfViewer;assembly=Syncfusion.Maui.PdfViewer"
+             x:Class="TextPolygonSample.MainPage">
+
+    <Grid>
+        <syncfusion:SfPdfViewer x:Name="PdfViewer"/>
+    </Grid>
+
+</ContentPage>

Annotations/TextPolygonSample/MainPage.xaml.cs

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+using Syncfusion.Maui.PdfViewer;
+using System.Globalization;
+
+namespace TextPolygonSample
+{
+    public partial class MainPage : ContentPage
+    {
+        // Define a variable to hold the polygon bounds and thickness for positioning other annotations
+        RectF polygonBounds;
+        float polygonThickness;
+        PolygonAnnotation? polygonAnnotation;
+        FreeTextAnnotation? textAnnotation;
+
+        public MainPage()
+        {
+            InitializeComponent();
+
+            // Load a PDF document embedded in the project resources
+            Stream? documentStream = this.GetType().Assembly.GetManifestResourceStream("TextPolygonSample.Assets.Annotations.pdf");
+
+            // Load the PDF document into the SfPdfViewer
+            PdfViewer.LoadDocument(documentStream);
+
+            // Call method to convert coordinates and add polygon annotations to the PDF
+            ConvertAndAddPolygonAnnotation();
+
+            // Create and add free text annotation within the polygon
+            CreateAndAddFreeTextAnnotation();
+        }
+
+        // Converts coordinate to polygon points and adds polygon and text annotations
+        void ConvertAndAddPolygonAnnotation()
+        {
+            // Example coordinates for a polygon
+            var coordinates = "M50 27L111 27L111 63L50 63";
+
+            // Create and add polygon annotation based on coordinate
+            CreateAndAddPolygonAnnotation(coordinates);
+        }
+
+        // Creates and adds a free text annotation inside the polygon annotation
+        private void CreateAndAddFreeTextAnnotation()
+        {
+            // Text to be displayed within the free text annotation
+            string text = "TOMTEST";
+
+            // Calculate position and size of the free text annotation
+            float FreeTextX = polygonBounds.X + polygonThickness;
+            float FreeTextY = polygonBounds.Y + polygonThickness;
+            float FreeTextWidth = polygonBounds.Width - polygonThickness;
+            float FreeTextHeight = polygonBounds.Height - polygonThickness;
+
+            // Define bounds for the free text annotation
+            RectF freeTextBounds = new RectF(FreeTextX, FreeTextY, FreeTextWidth, FreeTextHeight);
+
+            // Create a free text annotation and add it to the PDF viewer
+            textAnnotation = new FreeTextAnnotation(text, 1, freeTextBounds);
+            PdfViewer.AddAnnotation(textAnnotation);
+        }
+
+        // Converts coordinates to a list of points for the polygon annotation
+        public List<PointF> ConvertCoordinatesToPolygonPoints(string coordinatesData)
+        {
+            // List to hold the parsed points
+            var points = new List<PointF>();
+
+            // Split the coordinates data into commands based on the 'M' (move to) and 'L' (line to) commands
+            string[] commands = coordinatesData.Split(new char[] { 'M', 'L' }, StringSplitOptions.RemoveEmptyEntries);
+            foreach (var command in commands)
+            {
+                // Separate each command into X and Y coordinates
+                string[] coords = command.Trim().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+                if (coords.Length >= 2)
+                {
+                    // Parse the coordinates and add to the list as a PointF object
+                    float x = float.Parse(coords[0], CultureInfo.InvariantCulture);
+                    float y = float.Parse(coords[1], CultureInfo.InvariantCulture);
+                    points.Add(new PointF(x, y));
+                }
+            }
+            return points;
+        }
+
+        // Creates a polygon annotation from a list of points
+        private PolygonAnnotation CreatePolygonAnnotation(List<PointF> polygonPoints)
+        {
+            // Create the polygon annotation and set its properties
+            PolygonAnnotation polygonAnnotation = new PolygonAnnotation(polygonPoints, 1);
+            polygonAnnotation.Color = Colors.Black; // Set annotation color
+            polygonAnnotation.Opacity = 25; // Set annotation opacity
+
+            // Set the bounds and thickness for use in positioning other annotations
+            polygonBounds = polygonAnnotation.Bounds;
+            polygonThickness = polygonAnnotation.BorderWidth;
+
+            // Set a solid border style for the polygon
+            polygonAnnotation.BorderStyle = BorderStyle.Solid;
+
+            return polygonAnnotation;
+        }
+
+        // Parses coordinate, creates a polygon annotation, and adds it to the PDF viewer
+        private void CreateAndAddPolygonAnnotation(string coordinate)
+        {
+            // Convert coordinate to a list of polygon points
+            List<PointF> polygonPoints = ConvertCoordinatesToPolygonPoints(coordinate);
+
+            // Create the polygon annotation from the points
+            polygonAnnotation = CreatePolygonAnnotation(polygonPoints);
+
+            // Add the polygon annotation to the PDF document
+            PdfViewer.AddAnnotation(polygonAnnotation);
+        }
+
+        //private void PdfViewer_AnnotationEdited(object sender, AnnotationEventArgs e)
+        //{
+        //    if (e.Annotation is FreeTextAnnotation annotation && annotation == textAnnotation && polygonAnnotation != null)
+        //    {
+        //        polygonBounds = annotation.Bounds;
+        //    }
+        //    if (polygonAnnotation != null)
+        //    {
+        //        polygonAnnotation.Bounds = polygonBounds;
+        //        polygonAnnotation.Points = new List<PointF>() { new PointF(polygonBounds.X, polygonBounds.Y), new PointF(polygonBounds.X + polygonBounds.Width, polygonBounds.Y), new PointF(polygonBounds.X, polygonBounds.Y + polygonBounds.Height), new PointF(polygonBounds.X + polygonBounds.Width, polygonBounds.Y + polygonBounds.Height) };
+        //    }
+        //}
+    }
+}

Annotations/TextPolygonSample/MauiProgram.cs

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+using Microsoft.Extensions.Logging;
+using Syncfusion.Maui.Core.Hosting;
+
+namespace TextPolygonSample
+{
+    public static class MauiProgram
+    {
+        public static MauiApp CreateMauiApp()
+        {
+            var builder = MauiApp.CreateBuilder();
+            builder
+                .UseMauiApp<App>()
+                .ConfigureSyncfusionCore()
+                .ConfigureFonts(fonts =>
+                {
+                    fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
+                    fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
+                });
+
+#if DEBUG
+    		builder.Logging.AddDebug();
+#endif
+
+            return builder.Build();
+        }
+    }
+}

Annotations/TextPolygonSample/Platforms/Android/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+	<application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true"></application>
+	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+	<uses-permission android:name="android.permission.INTERNET" />
+</manifest>

Annotations/TextPolygonSample/Platforms/Android/MainActivity.cs

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+using Android.App;
+using Android.Content.PM;
+using Android.OS;
+
+namespace TextPolygonSample
+{
+    [Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, LaunchMode = LaunchMode.SingleTop, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
+    public class MainActivity : MauiAppCompatActivity
+    {
+    }
+}

Annotations/TextPolygonSample/Platforms/Android/MainApplication.cs

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+using Android.App;
+using Android.Runtime;
+
+namespace TextPolygonSample
+{
+    [Application]
+    public class MainApplication : MauiApplication
+    {
+        public MainApplication(IntPtr handle, JniHandleOwnership ownership)
+            : base(handle, ownership)
+        {
+        }
+
+        protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
+    }
+}

Annotations/TextPolygonSample/Platforms/Android/Resources/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#512BD4</color>
+    <color name="colorPrimaryDark">#2B0B98</color>
+    <color name="colorAccent">#2B0B98</color>
+</resources>

Annotations/TextPolygonSample/Platforms/MacCatalyst/AppDelegate.cs

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+using Foundation;
+
+namespace TextPolygonSample
+{
+    [Register("AppDelegate")]
+    public class AppDelegate : MauiUIApplicationDelegate
+    {
+        protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
+    }
+}

Annotations/TextPolygonSample/Platforms/MacCatalyst/Entitlements.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+    <!-- See https://aka.ms/maui-publish-app-store#add-entitlements for more information about adding entitlements.-->
+    <dict>
+        <!-- App Sandbox must be enabled to distribute a MacCatalyst app through the Mac App Store. -->
+        <key>com.apple.security.app-sandbox</key>
+        <true/>
+        <!-- When App Sandbox is enabled, this value is required to open outgoing network connections. -->
+        <key>com.apple.security.network.client</key>
+        <true/>
+    </dict>
+</plist>
+

Annotations/TextPolygonSample/Platforms/MacCatalyst/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <!-- The Mac App Store requires you specify if the app uses encryption. -->
+    <!-- Please consult https://developer.apple.com/documentation/bundleresources/information_property_list/itsappusesnonexemptencryption -->
+    <!-- <key>ITSAppUsesNonExemptEncryption</key> -->
+    <!-- Please indicate <true/> or <false/> here. -->
+
+    <!-- Specify the category for your app here. -->
+    <!-- Please consult https://developer.apple.com/documentation/bundleresources/information_property_list/lsapplicationcategorytype -->
+    <!-- <key>LSApplicationCategoryType</key> -->
+    <!-- <string>public.app-category.YOUR-CATEGORY-HERE</string> -->
+	<key>UIDeviceFamily</key>
+	<array>
+		<integer>2</integer>
+	</array>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>arm64</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>XSAppIconAssets</key>
+	<string>Assets.xcassets/appicon.appiconset</string>
+</dict>
+</plist>

Annotations/TextPolygonSample/Platforms/MacCatalyst/Program.cs

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+using ObjCRuntime;
+using UIKit;
+
+namespace TextPolygonSample
+{
+    public class Program
+    {
+        // This is the main entry point of the application.
+        static void Main(string[] args)
+        {
+            // if you want to use a different Application Delegate class from "AppDelegate"
+            // you can specify it here.
+            UIApplication.Main(args, null, typeof(AppDelegate));
+        }
+    }
+}

Annotations/TextPolygonSample/Platforms/Tizen/Main.cs

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+using System;
+using Microsoft.Maui;
+using Microsoft.Maui.Hosting;
+
+namespace TextPolygonSample
+{
+    internal class Program : MauiApplication
+    {
+        protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
+
+        static void Main(string[] args)
+        {
+            var app = new Program();
+            app.Run(args);
+        }
+    }
+}

Annotations/TextPolygonSample/Platforms/Tizen/tizen-manifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="maui-application-id-placeholder" version="0.0.0" api-version="9" xmlns="http://tizen.org/ns/packages">
+  <profile name="common" />
+  <ui-application appid="maui-application-id-placeholder" exec="TextPolygonSample.dll" multiple="false" nodisplay="false" taskmanage="true" type="dotnet" launch_mode="single">
+    <label>maui-application-title-placeholder</label>
+    <icon>maui-appicon-placeholder</icon>
+    <metadata key="http://tizen.org/metadata/prefer_dotnet_aot" value="true" />
+  </ui-application>
+  <shortcut-list />
+  <privileges>
+    <privilege>http://tizen.org/privilege/internet</privilege>
+  </privileges> 
+  <dependencies />
+  <provides-appdefined-privileges />
+</manifest>

Annotations/TextPolygonSample/Platforms/Windows/App.xaml

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+<maui:MauiWinUIApplication
+    x:Class="TextPolygonSample.WinUI.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:maui="using:Microsoft.Maui"
+    xmlns:local="using:TextPolygonSample.WinUI">
+
+</maui:MauiWinUIApplication>