Merge pull request #1440 from kellyelton/master

Added the ability to click through transparent areas of cards

Author: kellyelton

octgnFX/Octgn/Controls/OpaqueClickableImage.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace Octgn.Controls
+{
+    public class OpaqueClickableImage : Image
+    {
+        protected override HitTestResult HitTestCore(PointHitTestParameters hitTestParameters)
+        {
+            var source = (BitmapSource)Source;
+
+            // Get the pixel of the source that was hit
+            var x = (int)(hitTestParameters.HitPoint.X / ActualWidth * source.PixelWidth);
+            var y = (int)(hitTestParameters.HitPoint.Y / ActualHeight * source.PixelHeight);
+
+            // Copy the single pixel into a new byte array representing RGBA
+            var pixel = new byte[4];
+            if (x >= source.PixelWidth)
+                x = source.PixelWidth - 1;
+            if (y >= source.PixelHeight)
+                y = source.PixelHeight - 1;
+            source.CopyPixels(new Int32Rect(x, y, 1, 1), pixel, 4, 0);
+
+            // Check the alpha (transparency) of the pixel
+            // - threshold can be adjusted from 0 to 255
+            if (pixel[3] < 10)
+                return null;
+
+            return new PointHitTestResult(this, hitTestParameters.HitPoint);
+        }
+    }
+}

octgnFX/Octgn/Octgn.csproj

@@ -340,6 +340,7 @@
     <Compile Include="Controls\FeatureFundingMessage.xaml.cs">
       <DependentUpon>FeatureFundingMessage.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Controls\OpaqueClickableImage.cs" />
     <Compile Include="Controls\SpecialOfferBar.xaml.cs">
       <DependentUpon>SpecialOfferBar.xaml</DependentUpon>
     </Compile>

octgnFX/Octgn/Play/Gui/CardControl.xaml

@@ -1,7 +1,9 @@
 <UserControl x:Class="Octgn.Play.Gui.CardControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Name="me" mc:Ignorable="d"
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" d:DesignHeight="294" d:DesignWidth="199">
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:controls="clr-namespace:Octgn.Controls"
+             d:DesignHeight="294" d:DesignWidth="199">
 
     <UserControl.Resources>
         <!-- FIX: This hack is meant to work around the TextBlock style 
@@ -88,9 +90,9 @@
                     </Rectangle.Stroke>
                 </Rectangle>
 
-                <Image x:Name="img" MouseLeftButtonDown="LeftButtonDownOverImage"
-             Source="{Binding ElementName=me, Path=DisplayedPicture}" />
-
+                <!--<Image x:Name="img" MouseLeftButtonDown="LeftButtonDownOverImage"
+             Source="{Binding ElementName=me, Path=DisplayedPicture}" IsHitTestVisible="False"/>-->
+                <controls:OpaqueClickableImage x:Name="img" Image.MouseLeftButtonDown="LeftButtonDownOverImage" Source="{Binding ElementName=me, Path=DisplayedPicture}"/>
                 <StackPanel Margin="0,8,1,0" HorizontalAlignment="Right" VerticalAlignment="Top">
                     <Border x:Name="peekEye" Background="#80000000" CornerRadius="5,0,0,5" Visibility="{Binding PeekingPlayers.Count, Converter={StaticResource CountConverter}}">
                         <Image x:Name="peekEyeIcon" Source="/Resources/Eye.png" Width="32" Margin="4,0,8,0" />

recentchanges.txt

@@ -0,0 +1 @@
+Can now click through transparent areas of Cards - Kelly