Add reset button to settings flyout (#1073)

src/CalcViewModel/GraphingCalculator/GraphingSettingsViewModel.cpp

@@ -71,6 +71,26 @@ void GraphingSettingsViewModel::InitRanges()
     m_dontUpdateDisplayRange = false;
 }
 
+void GraphingSettingsViewModel::ResetView()
+{
+    if (m_Graph != nullptr)
+    {
+        m_Graph->ResetGrid();
+        InitRanges();
+        m_XMinError = false;
+        m_XMaxError = false;
+        m_YMinError = false;
+        m_YMaxError = false;
+
+        RaisePropertyChanged("XError");
+        RaisePropertyChanged("XMin");
+        RaisePropertyChanged("XMax");
+        RaisePropertyChanged("YError");
+        RaisePropertyChanged("YMin");
+        RaisePropertyChanged("YMax");
+    }
+}
+
 void GraphingSettingsViewModel::UpdateDisplayRange()
 {
     if (m_Graph == nullptr || m_dontUpdateDisplayRange || HasError())

src/CalcViewModel/GraphingCalculator/GraphingSettingsViewModel.h

@@ -275,6 +275,7 @@ namespace CalculatorApp::ViewModel
     public:
         void SetGrapher(GraphControl::Grapher ^ grapher);
         void InitRanges();
+        void ResetView();
         bool HasError();
 
     private:

src/Calculator/Resources/en-US/Resources.resw

@@ -4226,6 +4226,10 @@
     <value>Units</value>
     <comment>Heading for Unit's on the settings</comment>
   </data>
+  <data name="ResetViewButton.Content" xml:space="preserve">
+    <value>Reset view</value>
+    <comment>Hyperlink button to reset the view of the graph</comment>
+  </data>
   <data name="GraphSettingsXMax.Header" xml:space="preserve">
     <value>X-Max</value>
     <comment>X maximum value header</comment>

src/Calculator/Views/GraphingCalculator/GraphingSettings.xaml

@@ -102,11 +102,19 @@
                        FontSize="20"
                        FontWeight="Medium"
                        AutomationProperties.HeadingLevel="Level1"/>
-            <TextBlock x:Name="GridHeading"
-                       x:Uid="GridHeading"
-                       Margin="0,12,0,6"
-                       Style="{StaticResource SubTitleTextBoxStyle}"
-                       AutomationProperties.HeadingLevel="Level2"/>
+            <Grid Margin="0,12,0,0">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="Auto"/>
+                </Grid.ColumnDefinitions>
+                <TextBlock x:Name="GridHeading"
+                           x:Uid="GridHeading"
+                           Style="{StaticResource SubTitleTextBoxStyle}"
+                           AutomationProperties.HeadingLevel="Level2"/>
+                <HyperlinkButton x:Uid="ResetViewButton"
+                                 Grid.Column="1"
+                                 Click="ResetViewButton_Clicked"/>
+            </Grid>
             <Grid>
                 <Grid.RowDefinitions>
                     <RowDefinition Height="auto"/>

src/Calculator/Views/GraphingCalculator/GraphingSettings.xaml.cpp

@@ -61,3 +61,8 @@ void GraphingSettings::RefreshRanges()
 {
     ViewModel->InitRanges();
 }
+
+void GraphingSettings::ResetViewButton_Clicked(Object ^ sender, RoutedEventArgs ^ e)
+{
+    ViewModel->ResetView();
+}

src/Calculator/Views/GraphingCalculator/GraphingSettings.xaml.h

@@ -23,5 +23,6 @@ namespace CalculatorApp
         void RefreshRanges();
     private:
         void GridSettingsTextBox_PreviewKeyDown(Platform::Object ^ sender, Windows::UI::Xaml::Input::KeyRoutedEventArgs ^ e);
+        void ResetViewButton_Clicked(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e);
     };
 }