add fixed transparent palette color button

Author: unitycoder

PixelArtTool/MainWindow.xaml

@@ -199,12 +199,12 @@
 			<Button x:Name="btnScrollRight" Click="OnScrollButtonRightClicked" Content="&gt;" HorizontalAlignment="Left" Margin="415,262,0,0" VerticalAlignment="Top" Width="24"/>
 			<Button x:Name="btnFlipX" Click="OnFlipXButtonDown" Content="FlipX" HorizontalAlignment="Left" Margin="365,316,0,0" VerticalAlignment="Top" Width="32"/>
 			<Button x:Name="btnFlipY" Click="OnFlipYButtonDown" Content="FlipY" HorizontalAlignment="Left" Margin="402,316,0,0" VerticalAlignment="Top" Width="32"/>
-			<Button x:Name="btnLoadPalette" Click="OnLoadPaletteButton" Content="Load Palette" HorizontalAlignment="Left" Margin="10,321,0,0" VerticalAlignment="Top" Width="71"/>
+			<Button x:Name="btnLoadPalette" Click="OnLoadPaletteButton" Content="Load Palette" HorizontalAlignment="Left" Margin="10,324,0,0" VerticalAlignment="Top" Width="71"/>
 		</Grid>
 		<CheckBox x:Name="chkOutline" Content="Outline" HorizontalAlignment="Left" Margin="638,50,0,0" VerticalAlignment="Top" Width="64" Click="chkOutline_Click"/>
-		<Rectangle x:Name="rectCurrentColor" Fill="#FFF4F4F5" HorizontalAlignment="Left" Height="28" Margin="10,276,0,0" Stroke="Black" VerticalAlignment="Top" Width="28"/>
+		<Rectangle x:Name="rectCurrentColor" Fill="#FFF4F4F5" HorizontalAlignment="Left" Height="28" Margin="10,256,0,0" Stroke="Black" VerticalAlignment="Top" Width="28"/>
 		<CheckBox x:Name="chkMirrorX" Content="Symmetry X" HorizontalAlignment="Left" Margin="638,71,0,0" VerticalAlignment="Top" Width="93"/>
-		<Rectangle x:Name="rectSecondaryColor" Fill="Black" HorizontalAlignment="Left" Height="28" Margin="47,276,0,0" Stroke="Black" VerticalAlignment="Top" Width="28"/>
+		<Rectangle x:Name="rectSecondaryColor" Fill="Black" HorizontalAlignment="Left" Height="28" Margin="47,256,0,0" Stroke="Black" VerticalAlignment="Top" Width="28"/>
 
 		<!-- https://stackoverflow.com/a/32514853/5452781 -->
 		<Rectangle x:Name="tempRect" Width="200" Height="200" Margin="459,130,0,0" SnapsToDevicePixels="True" HorizontalAlignment="Left" VerticalAlignment="Top" UseLayoutRounding="False" Fill="Black" />
@@ -221,6 +221,11 @@
 			</Rectangle>
 			<Line x:Name="lineCurrentHueLine" X1="91" Y1="312" X2="91" Y2="334" Stroke="Red" StrokeThickness="1" />
 		</Grid>
+		<Rectangle x:Name="rectGetTransparent" HorizontalAlignment="Left" Height="28" Margin="10,289,0,0" Stroke="Black" VerticalAlignment="Top" Width="28" MouseDown="OnGetTransparentColorButton">
+			<Rectangle.Fill>
+				<ImageBrush ImageSource="Resources/Images/transparentbg.png"/>
+			</Rectangle.Fill>
+		</Rectangle>
 
 	</Grid>
 </Window>

PixelArtTool/MainWindow.xaml.cs

@@ -1009,6 +1009,18 @@ private void OnLevelSaturationMouseDown(object sender, MouseButtonEventArgs e)
             rectCurrentColor.Fill = new SolidColorBrush(Color.FromArgb(c2.Alpha, c2.Red, c2.Green, c2.Blue));
             ResetCurrentBrightnessPreview(currentColor);
         }
+
+        private void OnGetTransparentColorButton(object sender, MouseButtonEventArgs e)
+        {
+            var c = new PixelColor();
+            c.Red = 255;
+            c.Green = 255;
+            c.Blue = 255;
+            c.Alpha = 0;
+            currentColor = c;
+            rectCurrentColor.Fill = new SolidColorBrush(Color.FromArgb(c.Alpha, c.Red, c.Green, c.Blue));
+            ResetCurrentBrightnessPreview(currentColor);
+        }
     } // class
 
 } // namespace

PixelArtTool/PixelArtTool.csproj

@@ -142,5 +142,8 @@
   <ItemGroup>
     <Resource Include="Resources\Buttons\paint.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Resources\Images\transparentbg.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>