fix MetroProgressBar orientation #2148

Author: punker76

MahApps.Metro/Controls/MetroProgressBar.cs

@@ -68,7 +68,7 @@ private static void ToggleIndeterminate(MetroProgressBar bar, bool oldValue, boo
                         var resetAction = new Action(() => {
                                                          bar.InvalidateMeasure();
                                                          bar.InvalidateArrange();
-                                                         bar.ResetStoryboard(bar.ActualWidth, false);
+                                                         bar.ResetStoryboard(bar.ActualSize(), false);
                                                      });
                         bar.Dispatcher.BeginInvoke(DispatcherPriority.Background, resetAction);
                     }
@@ -96,14 +96,19 @@ public double EllipseOffset
 
         private void SizeChangedHandler(object sender, SizeChangedEventArgs e)
         {
-            var actualWidth = ActualWidth;
+            var size = this.ActualSize();
             var bar = this;
             if (this.Visibility == Visibility.Visible && this.IsIndeterminate)
             {
-                bar.ResetStoryboard(actualWidth, true);
+                bar.ResetStoryboard(size, true);
             }
         }
 
+        private double ActualSize()
+        {
+            return this.Orientation == Orientation.Horizontal ? this.ActualWidth : this.ActualHeight;
+        }
+
         private void ResetStoryboard(double width, bool removeOldStoryboard)
         {
             if (!this.IsIndeterminate)
@@ -298,11 +303,11 @@ protected override void OnInitialized(EventArgs e)
             // only if they haven't been user-set.
             if (EllipseDiameter.Equals(0))
             {
-                SetEllipseDiameter(ActualWidth);
+                SetEllipseDiameter(this.ActualSize());
             }
             if (EllipseOffset.Equals(0))
             {
-                SetEllipseOffset(ActualWidth);
+                SetEllipseOffset(this.ActualSize());
             }
         }
     }

MahApps.Metro/Themes/MetroProgressBar.xaml

@@ -271,6 +271,19 @@
                         <Trigger Property="IsIndeterminate" Value="False">
                             <Setter TargetName="DeterminateRoot" Property="Opacity" Value="1" />
                         </Trigger>
+                        <Trigger Property="Orientation" Value="Vertical">
+                            <Setter TargetName="ContainingGrid" Property="LayoutTransform">
+                                <Setter.Value>
+                                    <RotateTransform Angle="270" />
+                                </Setter.Value>
+                            </Setter>
+                            <Setter Property="VerticalAlignment" Value="Stretch" />
+                            <Setter Property="HorizontalAlignment" Value="Center" />
+                            <Setter Property="MinHeight" Value="0" />
+                            <Setter Property="MinWidth" Value="{StaticResource ProgressBarMinHeight}" />
+                            <Setter TargetName="ContainingGrid" Property="Width" Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Height}"/>
+                            <Setter TargetName="ContainingGrid" Property="Height" Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Width}"/>
+                        </Trigger>
                     </ControlTemplate.Triggers>
                 </ControlTemplate>
             </Setter.Value>

docs/release-notes/1.3.0.md

@@ -163,3 +163,4 @@ MahApps.Metro v1.3.0 bug fix and feature release.
 - #2473 Cannot use DialogCoordinator from background threads.
 - #2551 Feature Request: NonActiveWindowTitleColorBrush
 - #2542 NumericUpDown SelectAllOnFocus doesn't work
+- #2148 MetroProgressBar orientation does not work (@petvetbr) #2379