add undo for clearing image, start making window resizable (setting component alignments)

Author: unitycoder

PixelArtTool/MainWindow.xaml

@@ -6,7 +6,7 @@
         xmlns:local="clr-namespace:PixelArtTool"
         xmlns:System="clr-namespace:System;assembly=mscorlib" x:Name="window" x:Class="PixelArtTool.MainWindow"
         mc:Ignorable="d"
-        Title="PixelArtTool (Test Version)" Height="412.222" Width="739.444" Background="#FF252526" KeyDown="OnKeyDown" KeyUp="OnKeyUp" Icon="Resources/Icons/appicon.ico" MouseWheel="WindowMouseWheel">
+        Title="PixelArtTool (Test Version)" Height="412.222" Width="739.444" Background="#FF252526" KeyDown="OnKeyDown" KeyUp="OnKeyUp" Icon="Resources/Icons/appicon.ico" MouseWheel="WindowMouseWheel" MinWidth="720" MinHeight="400">
 	<Window.CommandBindings>
 		<CommandBinding Command="ApplicationCommands.Undo" Executed="Executed_Undo" CanExecute="CanExecute_Undo"/>
 		<CommandBinding Command="ApplicationCommands.Redo" Executed="Executed_Redo" CanExecute="CanExecute_Redo"/>
@@ -218,7 +218,7 @@
 			<Button x:Name="btnFlipY" Click="OnFlipYButtonDown" Content="FlipY" HorizontalAlignment="Left" Margin="402,316,0,0" VerticalAlignment="Top" Width="32" ToolTip="Flip vertical"/>
 			<Button x:Name="btnLoadPalette" Click="OnLoadPaletteButton" Content="Load Palette" HorizontalAlignment="Left" Margin="9,329,0,0" VerticalAlignment="Top" Width="71" ToolTip="Open 1x lospec png palette files"/>
 		</Grid>
-		<CheckBox x:Name="chkOutline" Content="Outline" HorizontalAlignment="Left" Margin="638,50,0,0" VerticalAlignment="Top" Width="64" Click="chkOutline_Click" ToolTip="Automatic outline"/>
+		<CheckBox x:Name="chkOutline" Content="Outline" HorizontalAlignment="Right" Margin="0,39,10,0" VerticalAlignment="Top" Width="64" Click="chkOutline_Click" ToolTip="Automatic outline"/>
 		<Grid>
 			<Rectangle x:Name="rectCurrentColorBg" HorizontalAlignment="Left" Height="28" Margin="10,256,0,0" Stroke="Black" VerticalAlignment="Top" Width="28" MouseDown="OnGetTransparentColorButton">
 				<Rectangle.Fill>
@@ -227,7 +227,7 @@
 			</Rectangle>
 			<Rectangle x:Name="rectCurrentColor" Fill="#FFF4F4F5" HorizontalAlignment="Left" Height="28" Margin="10,256,0,0" Stroke="Black" VerticalAlignment="Top" Width="28" MouseDown="rectCurrentColor_MouseDown" ToolTip="Current color"/>
 		</Grid>
-		<CheckBox x:Name="chkMirrorX" Content="Symmetry X" HorizontalAlignment="Left" Margin="638,71,0,0" VerticalAlignment="Top" Width="93" Unchecked="chkMirrorX_Unchecked" Checked="chkMirrorX_Checked" ToolTip="Symmetry horizontal"/>
+		<CheckBox x:Name="chkMirrorX" Content="Symmetry X" HorizontalAlignment="Right" Margin="0,60,10,0" VerticalAlignment="Top" Width="93" Unchecked="chkMirrorX_Unchecked" Checked="chkMirrorX_Checked" ToolTip="Symmetry horizontal"/>
 		<Grid>
 			<Rectangle x:Name="rectSecondaryColorBg" HorizontalAlignment="Left" Height="28" Margin="47,256,0,0" Stroke="Black" VerticalAlignment="Top" Width="28" MouseDown="OnGetTransparentColorButton">
 				<Rectangle.Fill>
@@ -237,10 +237,10 @@
 			<Rectangle x:Name="rectSecondaryColor" Fill="Black" HorizontalAlignment="Left" Height="28" Margin="47,256,0,0" Stroke="Black" VerticalAlignment="Top" Width="28" MouseDown="rectSecondaryColor_MouseDown" ToolTip="Secondary current color"/>
 		</Grid>
 		<!-- 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" />
-		<Rectangle x:Name="rectSaturation"  Fill="{StaticResource LevelSaturationBrush}" Width="200" Height="200" Margin="459,130,0,0" StrokeThickness="1" SnapsToDevicePixels="True" HorizontalAlignment="Left" VerticalAlignment="Top" MouseDown="OnLevelSaturationMouseDown" MouseMove="OnLevelSaturationMouseMoved" />
-		<Rectangle x:Name="rectHueBar" Fill="{StaticResource HueBrush}" Width="20" Height="200" Margin="664,130,0,0" Stroke="Black" StrokeThickness="1" SnapsToDevicePixels="True" MouseDown="rectHueBar_MouseDown" HorizontalAlignment="Left" VerticalAlignment="Top" MouseMove="OnHueRectangleMouseMoved" />
-		<Rectangle x:Name="rectGetTransparentColor" HorizontalAlignment="Left" Height="28" Margin="547,97,0,0" Stroke="Black" VerticalAlignment="Top" Width="28" MouseDown="OnGetTransparentColorButton" ToolTip="Use transparent color">
+		<Rectangle x:Name="tempRect" Width="200" Height="200" Margin="0,130,50,0" SnapsToDevicePixels="True" HorizontalAlignment="Right" VerticalAlignment="Top" UseLayoutRounding="False" Fill="Black" />
+		<Rectangle x:Name="rectSaturation"  Fill="{StaticResource LevelSaturationBrush}" Width="200" Height="200" Margin="0,130,50,0" StrokeThickness="1" SnapsToDevicePixels="True" HorizontalAlignment="Right" VerticalAlignment="Top" MouseDown="OnLevelSaturationMouseDown" MouseMove="OnLevelSaturationMouseMoved" />
+		<Rectangle x:Name="rectHueBar" Fill="{StaticResource HueBrush}" Width="20" Height="200" Margin="0,130,20,0" Stroke="Black" StrokeThickness="1" SnapsToDevicePixels="True" MouseDown="rectHueBar_MouseDown" HorizontalAlignment="Right" VerticalAlignment="Top" MouseMove="OnHueRectangleMouseMoved" />
+		<Rectangle x:Name="rectGetTransparentColor" HorizontalAlignment="Right" Height="41" Margin="0,84,208,0" Stroke="Black" VerticalAlignment="Top" Width="42" MouseDown="OnGetTransparentColorButton" ToolTip="Use transparent color">
 			<Rectangle.Fill>
 				<ImageBrush ImageSource="Resources/Images/transparentbg.png"/>
 			</Rectangle.Fill>
@@ -277,7 +277,7 @@
 		</Grid>
 
 		<Rectangle x:Name="rectPixelPos" IsHitTestVisible="False" HorizontalAlignment="Left" VerticalAlignment="Top" Height="16" Stroke="Black" Width="16" Margin="89,50,0,0"/>
-		<Button x:Name="btnSettings" Content="Settings" HorizontalAlignment="Left" Margin="674,6,0,0" VerticalAlignment="Top" Width="50" Click="btnSettings_Click" ToolTip="Settings.."/>
+		<Button x:Name="btnSettings" Content="Settings" HorizontalAlignment="Right" Margin="0,6,10,0" VerticalAlignment="Top" Width="50" Click="btnSettings_Click" ToolTip="Settings.."/>
 
 	</Grid>
 </Window>

PixelArtTool/MainWindow.xaml.cs

@@ -1407,12 +1407,12 @@ private void OnClearButton(object sender, MouseButtonEventArgs e)
             // shiftdown or right button, just clear without dialog
             if (leftShiftDown == true || (e != null && e.RightButton == MouseButtonState.Pressed))
             {
+                RegisterUndo();
                 ClearImage(canvasBitmap, emptyRect, emptyPixels, emptyStride);
                 UpdateOutline();
                 // reset title
                 window.Title = windowTitle;
                 saveFile = null;
-
                 return;
             }