From 86a5bfba27f0a8dd1e8ac152abb1a53cc2d007c4 Mon Sep 17 00:00:00 2001
From: Patrick Getzmann <pgetzmann@hotmail.de>
Date: Sat, 6 Oct 2018 18:02:18 +0200
Subject: [PATCH 1/2] Update README.md

Added the SignaturePadCanvasView
---
 README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/README.md b/README.md
index 0193a6b..15e4401 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,18 @@ var signatureView = new SignaturePadView (this) {
 	BackgroundColor="Black" />
 ```
 
+#### Need more control? Use the underlying SignaturePadCanvasView
+
+```xml
+<!-- xmlns:controls="clr-namespace:SignaturePad.Forms;assembly=SignaturePad.Forms" -->
+
+<controls:SignaturePadCanvasView
+                x:Name="signatureView"
+                StrokeCompleted="SignatureChanged"
+                BackgroundColor="White"
+                StrokeColor="Black"
+                StrokeWidth="3" />
+```
 ### Obtaining a Signature Image
 
 The signature that was drawn on the canvas can be obtained as a image using the `GetImage(...)`

From 3bdd525652a480dcab0b8e14ddcbfc1f06adba24 Mon Sep 17 00:00:00 2001
From: Patrick Getzmann <pgetzmann@hotmail.de>
Date: Sat, 6 Oct 2018 18:03:02 +0200
Subject: [PATCH 2/2] Added SignaturePadCanvasView

---
 samples/Sample.Forms/Samples/CanvasView.xaml  | 37 +++++++++++
 .../Sample.Forms/Samples/CanvasView.xaml.cs   | 61 +++++++++++++++++++
 samples/Sample.Forms/Samples/MainPage.xaml    |  1 +
 samples/Sample.Forms/Samples/Samples.csproj   |  6 ++
 4 files changed, 105 insertions(+)
 create mode 100644 samples/Sample.Forms/Samples/CanvasView.xaml
 create mode 100644 samples/Sample.Forms/Samples/CanvasView.xaml.cs

diff --git a/samples/Sample.Forms/Samples/CanvasView.xaml b/samples/Sample.Forms/Samples/CanvasView.xaml
new file mode 100644
index 0000000..f07e0c2
--- /dev/null
+++ b/samples/Sample.Forms/Samples/CanvasView.xaml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:controls="clr-namespace:SignaturePad.Forms;assembly=SignaturePad.Forms"
+             x:Class="Samples.CanvasView"
+             Title="SignaturePadCanvasView">
+    <Grid x:Name="LayoutRoot" Padding="12">
+
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*" />
+            <RowDefinition Height="12" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
+        <ContentView Padding="1" BackgroundColor="#B8860B">
+            <controls:SignaturePadCanvasView
+                x:Name="signatureView"
+                StrokeCompleted="SignatureChanged"
+                BackgroundColor="White"
+                StrokeColor="Black"
+                StrokeWidth="3" />
+        </ContentView>
+
+        <Button
+            x:Name="btnSave" Text="Save Vector" Clicked="SaveVectorClicked"
+            HorizontalOptions="Start" VerticalOptions="End" Grid.Row="2" />
+
+        <Button
+            x:Name="btnLoad" Text="Load Vector" Clicked="LoadVectorClicked"
+            HorizontalOptions="Center" VerticalOptions="End" Grid.Row="2" />
+
+        <Button
+            x:Name="btnSaveImage" Text="Save Image" Clicked="SaveImageClicked"
+            HorizontalOptions="End" VerticalOptions="End" Grid.Row="2" />
+
+    </Grid>
+</ContentPage>
\ No newline at end of file
diff --git a/samples/Sample.Forms/Samples/CanvasView.xaml.cs b/samples/Sample.Forms/Samples/CanvasView.xaml.cs
new file mode 100644
index 0000000..18218cb
--- /dev/null
+++ b/samples/Sample.Forms/Samples/CanvasView.xaml.cs
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SignaturePad.Forms;
+using Xamarin.Forms;
+using Xamarin.Forms.Xaml;
+
+namespace Samples
+{
+	[XamlCompilation(XamlCompilationOptions.Compile)]
+	public partial class CanvasView : ContentPage
+	{
+		private Point[] points;
+		public CanvasView ()
+		{
+			InitializeComponent ();
+			UpdateControls ();
+		}
+
+		private void UpdateControls ()
+		{
+			btnSave.IsEnabled = !signatureView.IsBlank;
+			btnSaveImage.IsEnabled = !signatureView.IsBlank;
+			btnLoad.IsEnabled = points != null;
+		}
+
+		private void SaveVectorClicked (object sender, EventArgs e)
+		{
+			points = signatureView.Points.ToArray ();
+			UpdateControls ();
+
+			DisplayAlert ("Signature Pad", "Vector signature saved to memory.", "OK");
+		}
+
+		private void LoadVectorClicked (object sender, EventArgs e)
+		{
+			signatureView.Points = points;
+		}
+
+		private async void SaveImageClicked (object sender, EventArgs e)
+		{
+			bool saved;
+			using (var bitmap = await signatureView.GetImageStreamAsync (SignatureImageFormat.Png, Color.Black, Color.White, 1f))
+			{
+				saved = await App.SaveSignature (bitmap, "signature.png");
+			}
+
+			if (saved)
+				await DisplayAlert ("Signature Pad", "Raster signature saved to the photo library.", "OK");
+			else
+				await DisplayAlert ("Signature Pad", "There was an error saving the signature.", "OK");
+		}
+
+		private void SignatureChanged (object sender, EventArgs e)
+		{
+			UpdateControls ();
+		}
+	}
+}
diff --git a/samples/Sample.Forms/Samples/MainPage.xaml b/samples/Sample.Forms/Samples/MainPage.xaml
index 2eb3597..b1f24e3 100644
--- a/samples/Sample.Forms/Samples/MainPage.xaml
+++ b/samples/Sample.Forms/Samples/MainPage.xaml
@@ -8,4 +8,5 @@
 
     <local:BindingPage Title="Data Binding" />
 
+    <local:CanvasView Title="CanvasView" />
 </TabbedPage>
diff --git a/samples/Sample.Forms/Samples/Samples.csproj b/samples/Sample.Forms/Samples/Samples.csproj
index 676b9fe..b1c57ee 100644
--- a/samples/Sample.Forms/Samples/Samples.csproj
+++ b/samples/Sample.Forms/Samples/Samples.csproj
@@ -18,4 +18,10 @@
     <PackageReference Include="Xamarin.Forms" Version="2.5.0.280555" />
   </ItemGroup>
 
+  <ItemGroup>
+    <EmbeddedResource Update="CanvasView.xaml">
+      <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
+    </EmbeddedResource>
+  </ItemGroup>
+
 </Project>
\ No newline at end of file