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Estilos e modelos DocumentViewer

  • Artigo

Este tópico descreve os estilos e modelos para o DocumentViewer controle. Você pode modificar o padrão ControlTemplate para dar ao controle uma aparência exclusiva. Para obter mais informações, consulte Criar um modelo para um controle.

Partes do DocumentViewer

A tabela a seguir lista as partes nomeadas para o DocumentViewer controle.

Parte Tipo Descrição
PART_ContentHost ScrollViewer O conteúdo e a área de rolagem.
PART_FindToolBarHost ContentControl A caixa de pesquisa, na parte inferior por padrão.

Estados do DocumentViewer

A tabela a seguir lista os estados visuais do DocumentViewer controle.

Nome do VisualState Nome do VisualStateGroup Descrição
Válido ValidationStates O controle usa a classe e a Validation propriedade anexada Validation.HasError é false.
InvalidFocused ValidationStates A Validation.HasError propriedade anexada é true tem o controle tem foco.
InvalidUnfocused ValidationStates A Validation.HasError propriedade anexada é true tem o controle não tem foco.

Exemplo de ControlTemplate do DocumentViewer

O exemplo a seguir mostra como definir um ControlTemplate para o DocumentViewer controle.

<Style x:Key="{x:Type DocumentViewer}"
       TargetType="{x:Type DocumentViewer}">
  <Setter Property="Foreground"
          Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}" />
  <Setter Property="Background"
          Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
  <Setter Property="FocusVisualStyle"
          Value="{x:Null}" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type DocumentViewer}">
        <Border BorderThickness="{TemplateBinding BorderThickness}"
                BorderBrush="{TemplateBinding BorderBrush}"
                Focusable="False">
          <Grid KeyboardNavigation.TabNavigation="Local">
            <Grid.Background>
              <SolidColorBrush Color="{DynamicResource ControlLightColor}" />
            </Grid.Background>
            <Grid.RowDefinitions>
              <RowDefinition Height="Auto" />
              <RowDefinition Height="*" />
              <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <ToolBar ToolBarTray.IsLocked="True"
                     KeyboardNavigation.TabNavigation="Continue">
              <Button Command="ApplicationCommands.Print"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      Content="Print" />
              <Button Command="ApplicationCommands.Copy"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      Content="Copy" />
              <Separator />
              <Button Command="NavigationCommands.IncreaseZoom"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      Content="Zoom In" />
              <Button Command="NavigationCommands.DecreaseZoom"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      Content="Zoom Out" />
              <Separator />
              <Button Command="NavigationCommands.Zoom"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      CommandParameter="100.0"
                      Content="Actual Size" />
              <Button Command="DocumentViewer.FitToWidthCommand"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      Content="Fit to Width" />
              <Button Command="DocumentViewer.FitToMaxPagesAcrossCommand"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      CommandParameter="1"
                      Content="Whole Page" />
              <Button Command="DocumentViewer.FitToMaxPagesAcrossCommand"
                      CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"
                      CommandParameter="2"
                      Content="Two Pages" />
            </ToolBar>

            <ScrollViewer Grid.Row="1"
                          CanContentScroll="true"
                          HorizontalScrollBarVisibility="Auto"
                          x:Name="PART_ContentHost"
                          IsTabStop="true">
              <ScrollViewer.Background>
                <LinearGradientBrush EndPoint="0.5,1"
                                     StartPoint="0.5,0">
                  <GradientStop Color="{DynamicResource ControlLightColor}"
                                Offset="0" />
                  <GradientStop Color="{DynamicResource ControlMediumColor}"
                                Offset="1" />
                </LinearGradientBrush>
              </ScrollViewer.Background>
            </ScrollViewer>

            <ContentControl Grid.Row="2"
                            x:Name="PART_FindToolBarHost"/>
          </Grid>
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

O exemplo anterior usa um ou mais dos seguintes recursos.

<!--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>

Para ver o exemplo completo, consulte Styling with ControlTemplates Sample (Estilos com a amostra ControlTemplates).

Confira também