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Stili e modelli della barra degli strumenti

In questo argomento vengono descritti gli stili e i modelli per il controllo ToolBar. È possibile modificare il ControlTemplate predefinito per assegnare al controllo un aspetto univoco. Per altre informazioni, vedere Creare un modello per un controllo.

Parti della barra degli strumenti

Nella tabella seguente sono elencate le parti specificate del controllo ToolBar.

Parte Digitare Descrizione
PART_ToolBarPanel ToolBarPanel L'oggetto che contiene i controlli sul ToolBar.
PART_ToolBarOverflowPanel ToolBarOverflowPanel Oggetto contenente i controlli presenti nell'area di overflow del ToolBar.

Quando si crea un ControlTemplate per un ToolBar, il modello potrebbe contenere un ItemsPresenter all'interno di un ScrollViewer. L'ItemsPresenter visualizza ogni elemento nel ToolBar; il ScrollViewer abilita lo scorrimento all'interno del controllo. Se il ItemsPresenter non è l'elemento figlio diretto del ScrollViewer, è necessario assegnare al ItemsPresenter il nome ItemsPresenter.

Stati della barra degli strumenti

Nella tabella seguente sono elencati gli stati di visualizzazione per il controllo ToolBar.

Nome VisualState Nome del gruppo di stati visivi Descrizione
Valido Stati di Validazione Il controllo utilizza la classe Validation e la proprietà associata Validation.HasError è false.
FuocoNonValido StatiDiValidazione La proprietà associata Validation.HasError indica se il controllo true ha lo stato attivo.
InvalidUnfocused StatiDiValidazione La proprietà associata Validation.HasError è tale che il controllo true non ha lo stato attivo.

Esempio di ControlTemplate della barra degli strumenti

Nell'esempio seguente viene illustrato come definire un ControlTemplate per il controllo ToolBar.

<Style x:Key="ToolBarButtonBaseStyle"
       TargetType="{x:Type ButtonBase}">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type ButtonBase}">
        <Border x:Name="Border"
                BorderThickness="1">
          <Border.BorderBrush>
            <LinearGradientBrush EndPoint="0.5,1"
                                 StartPoint="0.5,0">
              <GradientStop Color="{DynamicResource BorderLightColor}"
                            Offset="0" />
              <GradientStop Color="{DynamicResource BorderMediumColor}"
                            Offset="1" />
            </LinearGradientBrush>
          </Border.BorderBrush>
          <Border.Background>
            <LinearGradientBrush EndPoint="0.5,1"
                                 StartPoint="0.5,0">
              <GradientStop Color="{DynamicResource ControlLightColor}"
                            Offset="0" />
              <GradientStop Color="{DynamicResource ControlMediumColor}"
                            Offset="1" />
            </LinearGradientBrush>
          </Border.Background>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="Pressed">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlPressedColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="MouseOver">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlMouseOverColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Disabled">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background). 
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource DisabledControlDarkColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
            </VisualStateGroup>
            <VisualStateGroup x:Name="CheckStates">
              <VisualState x:Name="Checked">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlPressedColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Unchecked" />
              <VisualState x:Name="Indeterminate" />
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <ContentPresenter Margin="2"
                            HorizontalAlignment="Center"
                            VerticalAlignment="Center"
                            RecognizesAccessKey="True" />
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="{x:Static ToolBar.ButtonStyleKey}"
       BasedOn="{StaticResource ToolBarButtonBaseStyle}"
       TargetType="{x:Type Button}" />
<Style x:Key="{x:Static ToolBar.ToggleButtonStyleKey}"
       BasedOn="{StaticResource ToolBarButtonBaseStyle}"
       TargetType="{x:Type ToggleButton}" />
<Style x:Key="{x:Static ToolBar.CheckBoxStyleKey}"
       BasedOn="{StaticResource ToolBarButtonBaseStyle}"
       TargetType="{x:Type CheckBox}" />
<Style x:Key="{x:Static ToolBar.RadioButtonStyleKey}"
       BasedOn="{StaticResource ToolBarButtonBaseStyle}"
       TargetType="{x:Type RadioButton}" />

<Style x:Key="{x:Static ToolBar.TextBoxStyleKey}"
       TargetType="{x:Type TextBox}">
  <Setter Property="SnapsToDevicePixels"
          Value="True" />
  <Setter Property="OverridesDefaultStyle"
          Value="True" />
  <Setter Property="KeyboardNavigation.TabNavigation"
          Value="None" />
  <Setter Property="FocusVisualStyle"
          Value="{x:Null}" />
  <Setter Property="AllowDrop"
          Value="true" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type TextBox}">
        <Border x:Name="Border"
                Padding="2"
                BorderThickness="1">
          <Border.Background>
            <SolidColorBrush Color="{DynamicResource ControlLightColor}" />
          </Border.Background>
          <Border.BorderBrush>
            <SolidColorBrush Color="{StaticResource BorderMediumColor}" />
          </Border.BorderBrush>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="Disabled">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).  
                    (SolidColorBrush.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource DisabledControlDarkColor}" />
                  </ColorAnimationUsingKeyFrames>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Border.BorderBrush).  
                    (SolidColorBrush.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource DisabledBorderLightColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="ReadOnly" />
              <VisualState x:Name="MouseOver" />
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <ScrollViewer Margin="0"
                        x:Name="PART_ContentHost" />
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="ToolBarThumbStyle"
       TargetType="{x:Type Thumb}">
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="Cursor"
          Value="SizeAll" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type Thumb}">
        <Border Background="Transparent"
                SnapsToDevicePixels="True">
          <Rectangle Margin="0,2">
            <Rectangle.Fill>
              <DrawingBrush Viewport="0,0,4,4"
                            ViewportUnits="Absolute"
                            Viewbox="0,0,8,8"
                            ViewboxUnits="Absolute"
                            TileMode="Tile">
                <DrawingBrush.Drawing>
                  <DrawingGroup>
                    <GeometryDrawing Brush="#AAA"
                                     Geometry="M 4 4 L 4 8 L 8 8 L 8 4 z" />
                  </DrawingGroup>
                </DrawingBrush.Drawing>
              </DrawingBrush>
            </Rectangle.Fill>
          </Rectangle>
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="ToolBarOverflowButtonStyle"
       TargetType="{x:Type ToggleButton}">
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type ToggleButton}">
        <Border x:Name="Border"
                CornerRadius="0,3,3,0"
                SnapsToDevicePixels="true">
          <Border.Background>
            <LinearGradientBrush EndPoint="0.5,1"
                                 StartPoint="0.5,0">
              <GradientStop Color="#00000000"
                            Offset="0" />
              <GradientStop Offset="1" />
            </LinearGradientBrush>
          </Border.Background>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="Pressed">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).    
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlPressedColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="MouseOver">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).     
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlMouseOverColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Disabled">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).   
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource DisabledBorderLightColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <Grid>
            <Path x:Name="Arrow"
                  Fill="Black"
                  VerticalAlignment="Bottom"
                  Margin="2,3"
                  Data="M -0.5 3 L 5.5 3 L 2.5 6 Z" />
            <ContentPresenter />
          </Grid>
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="{x:Type ToolBar}"
       TargetType="{x:Type ToolBar}">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type ToolBar}">
        <Border x:Name="Border"
                CornerRadius="2"
                BorderThickness="1">
          <Border.BorderBrush>
            <LinearGradientBrush StartPoint="0,0"
                                 EndPoint="0,1">
              <LinearGradientBrush.GradientStops>
                <GradientStopCollection>
                  <GradientStop Color="{DynamicResource BorderMediumColor}"
                                Offset="0.0" />
                  <GradientStop Color="{DynamicResource BorderDarkColor}"
                                Offset="1.0" />
                </GradientStopCollection>
              </LinearGradientBrush.GradientStops>
            </LinearGradientBrush>
          </Border.BorderBrush>

          <Border.Background>
            <LinearGradientBrush StartPoint="0,0"
                                 EndPoint="0,1">
              <LinearGradientBrush.GradientStops>
                <GradientStopCollection>
                  <GradientStop Color="#FFF"
                                Offset="0.0" />
                  <GradientStop Color="{DynamicResource ControlMediumColor}"
                                Offset="1.0" />
                </GradientStopCollection>
              </LinearGradientBrush.GradientStops>
            </LinearGradientBrush>
          </Border.Background>
          <DockPanel>
            <ToggleButton DockPanel.Dock="Right"
                          IsEnabled="{TemplateBinding HasOverflowItems}"
                          Style="{StaticResource ToolBarOverflowButtonStyle}"
                          ClickMode="Press"
                          IsChecked="{Binding IsOverflowOpen, Mode=TwoWay, 
              RelativeSource={RelativeSource TemplatedParent}}">
              <Popup x:Name="OverflowPopup"
                     AllowsTransparency="true"
                     Placement="Bottom"
                     StaysOpen="false"
                     Focusable="false"
                     PopupAnimation="Slide"
                     IsOpen="{Binding IsOverflowOpen, 
                RelativeSource={RelativeSource TemplatedParent}}">
                <Border x:Name="DropDownBorder"
                        BorderThickness="1">
                  <Border.BorderBrush>
                    <SolidColorBrush Color="{DynamicResource BorderMediumColor}" />
                  </Border.BorderBrush>
                  <Border.Background>
                    <LinearGradientBrush EndPoint="0.5,1"
                                         StartPoint="0.5,0">
                      <GradientStop Color="{DynamicResource ControlLightColor}" />
                      <GradientStop Color="{DynamicResource ControlMediumColor}"
                                    Offset="1" />
                    </LinearGradientBrush>
                  </Border.Background>
                  <ToolBarOverflowPanel x:Name="PART_ToolBarOverflowPanel"
                                        Margin="2"
                                        WrapWidth="200"
                                        Focusable="true"
                                        FocusVisualStyle="{x:Null}"
                                        KeyboardNavigation.TabNavigation="Cycle"
                                        KeyboardNavigation.DirectionalNavigation="Cycle" />
                </Border>
              </Popup>
            </ToggleButton>

            <Thumb x:Name="ToolBarThumb"
                   Style="{StaticResource ToolBarThumbStyle}"
                   Width="10" />
            <ToolBarPanel x:Name="PART_ToolBarPanel"
                          IsItemsHost="true"
                          Margin="0,1,2,2" />
          </DockPanel>
        </Border>
        <ControlTemplate.Triggers>
          <Trigger Property="IsOverflowOpen"
                   Value="true">
            <Setter TargetName="ToolBarThumb"
                    Property="IsEnabled"
                    Value="false" />
          </Trigger>
          <Trigger Property="ToolBarTray.IsLocked"
                   Value="true">
            <Setter TargetName="ToolBarThumb"
                    Property="Visibility"
                    Value="Collapsed" />
          </Trigger>
        </ControlTemplate.Triggers>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="{x:Type ToolBarTray}"
       TargetType="{x:Type ToolBarTray}">
  <Setter Property="Background">
    <Setter.Value>
      <LinearGradientBrush StartPoint="0,0"
                           EndPoint="1,0">
        <LinearGradientBrush.GradientStops>
          <GradientStopCollection>
            <GradientStop Color="#FFF"
                          Offset="0.0" />
            <GradientStop Color="{DynamicResource WindowColor}"
                          Offset="1.0" />
          </GradientStopCollection>
        </LinearGradientBrush.GradientStops>
      </LinearGradientBrush>
    </Setter.Value>
  </Setter>
</Style>

Nell'esempio precedente viene utilizzata una o più delle risorse seguenti.

<!--Control colors.-->
<Color x:Key="WindowColor">#FFE8EDF9</Color>
<Color x:Key="ContentAreaColorLight">#FFC5CBF9</Color>
<Color x:Key="ContentAreaColorDark">#FF7381F9</Color>

<Color x:Key="DisabledControlLightColor">#FFE8EDF9</Color>
<Color x:Key="DisabledControlDarkColor">#FFC5CBF9</Color>
<Color x:Key="DisabledForegroundColor">#FF888888</Color>

<Color x:Key="SelectedBackgroundColor">#FFC5CBF9</Color>
<Color x:Key="SelectedUnfocusedColor">#FFDDDDDD</Color>

<Color x:Key="ControlLightColor">White</Color>
<Color x:Key="ControlMediumColor">#FF7381F9</Color>
<Color x:Key="ControlDarkColor">#FF211AA9</Color>

<Color x:Key="ControlMouseOverColor">#FF3843C4</Color>
<Color x:Key="ControlPressedColor">#FF211AA9</Color>


<Color x:Key="GlyphColor">#FF444444</Color>
<Color x:Key="GlyphMouseOver">sc#1, 0.004391443, 0.002428215, 0.242281124</Color>

<!--Border colors-->
<Color x:Key="BorderLightColor">#FFCCCCCC</Color>
<Color x:Key="BorderMediumColor">#FF888888</Color>
<Color x:Key="BorderDarkColor">#FF444444</Color>

<Color x:Key="PressedBorderLightColor">#FF888888</Color>
<Color x:Key="PressedBorderDarkColor">#FF444444</Color>

<Color x:Key="DisabledBorderLightColor">#FFAAAAAA</Color>
<Color x:Key="DisabledBorderDarkColor">#FF888888</Color>

<Color x:Key="DefaultBorderBrushDarkColor">Black</Color>

<!--Control-specific resources.-->
<Color x:Key="HeaderTopColor">#FFC5CBF9</Color>
<Color x:Key="DatagridCurrentCellBorderColor">Black</Color>
<Color x:Key="SliderTrackDarkColor">#FFC5CBF9</Color>

<Color x:Key="NavButtonFrameColor">#FF3843C4</Color>

<LinearGradientBrush x:Key="MenuPopupBrush"
                     EndPoint="0.5,1"
                     StartPoint="0.5,0">
  <GradientStop Color="{DynamicResource ControlLightColor}"
                Offset="0" />
  <GradientStop Color="{DynamicResource ControlMediumColor}"
                Offset="0.5" />
  <GradientStop Color="{DynamicResource ControlLightColor}"
                Offset="1" />
</LinearGradientBrush>

<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill"
                     StartPoint="0,0"
                     EndPoint="1,0">
  <LinearGradientBrush.GradientStops>
    <GradientStopCollection>
      <GradientStop Color="#000000FF"
                    Offset="0" />
      <GradientStop Color="#600000FF"
                    Offset="0.4" />
      <GradientStop Color="#600000FF"
                    Offset="0.6" />
      <GradientStop Color="#000000FF"
                    Offset="1" />
    </GradientStopCollection>
  </LinearGradientBrush.GradientStops>
</LinearGradientBrush>

Per l'esempio completo, vedere Applicazione di stili con ControlTemplates Sample.

Vedere anche