Added manual selection of grid color

Author: apdevelop

Src/ScreenGrid.ViewModels/ColorItemViewModel.cs

@@ -0,0 +1,46 @@
+namespace ScreenGrid.ViewModels
+{
+    using System.Linq;
+    using System.Windows.Media;
+
+    public class ColorItemViewModel
+    {
+        private Color color;
+
+        public ColorItemViewModel(Color color)
+        {
+            this.color = color;
+        }
+
+        public Color Color 
+        {
+            get
+            {
+                return this.color;
+            }
+        }
+
+        public Brush Brush
+        { 
+            get
+            { 
+                return new SolidColorBrush(this.Color);
+            }
+        }
+        
+        public string Name
+        {
+            get
+            {
+                return GetColorName(this.Color);
+            }
+        }
+
+        private static string GetColorName(Color color)
+        {
+            var colorProperty = typeof(Colors).GetProperties()
+                .FirstOrDefault(p => (Color)p.GetValue(null, null) == color);
+            return colorProperty != null ? colorProperty.Name : "???";
+        }
+    }
+}

Src/ScreenGrid.ViewModels/ScreenGrid.ViewModels.csproj

@@ -41,6 +41,7 @@
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="ColorItemViewModel.cs" />
     <Compile Include="ScreenGridViewModel.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Utils\BaseNotifyPropertyChanged.cs" />

Src/ScreenGrid.ViewModels/ScreenGridViewModel.cs

@@ -107,11 +107,45 @@ private bool FlipV
             }
         }
 
+        private Color selectedLineColor = Colors.White;
+
+        private static readonly List<Color> lineColors = new List<Color>(new[]
+                {
+                    Colors.White,
+                    Colors.Magenta,
+                    Colors.Black,
+                });
+
+        public IList<ColorItemViewModel> LineColors
+        {
+            get
+            {
+                return lineColors.Select(c => new ColorItemViewModel(c)).ToList();
+            }
+        }
+
+        public ColorItemViewModel SelectedLineColor
+        {
+            get
+            {
+                return new ColorItemViewModel(this.selectedLineColor);
+            }
+
+            set
+            {
+                if (this.selectedLineColor != value.Color)
+                {
+                    this.selectedLineColor = value.Color;
+                    this.UpdateContentControl();
+                }
+            }
+        }
+
         private Brush LineBrush
         {
             get
             {
-                return new SolidColorBrush(Colors.White) { Opacity = 0.8 };
+                return new SolidColorBrush(this.selectedLineColor) { Opacity = 0.75 };
             }
         }
 

Src/ScreenGrid.Views/ScreenGridWindow.xaml

@@ -94,7 +94,26 @@
                            Width="200" 
                            HorizontalAlignment="Stretch" 
                            MouseDown="Window_MouseDown" />
-                <TextBlock VerticalAlignment="Center" Margin="8,0,0,0" 
+                <ComboBox   HorizontalAlignment="Left" VerticalAlignment="Center"
+                            Width="85" Height="20"
+                            FontSize="10"
+                            ItemsSource="{Binding LineColors, Mode=OneTime}"
+                            SelectedItem="{Binding SelectedLineColor, Mode=TwoWay}">
+                            <ComboBox.ItemTemplate>
+                        <DataTemplate>
+                            <StackPanel Orientation="Horizontal" Margin="2">
+                                <Rectangle Stroke="Black" 
+                                      SnapsToDevicePixels="True" 
+                                      Width="12" Height="8"
+                                      Fill="{Binding Path=Brush}" />
+                                <TextBlock Margin="4 0 2 0" VerticalAlignment="Center"
+                                           Text="{Binding Path=Name}"/>
+                            </StackPanel>
+                        </DataTemplate>
+                    </ComboBox.ItemTemplate>
+                </ComboBox>
+                <TextBlock HorizontalAlignment="Left" VerticalAlignment="Center" 
+                           Margin="88,0,0,0" 
                            IsHitTestVisible="False" 
                            ToolTip="Size of grid internal area"
                            Text="{Binding CaptionText}" />