I've got a requirement, where the same keyboard shortcuts have to behave the same way to set text properties in a WPF rich textbox independently of the language windows was installed in.
Shortcuts:
- CTRL+B: Make text bold
- CTRL+I: Make text italic
- CTRL+SHIFT+S: Strike-trough text
Even though this shouldn't matter, as it has to behave the same way for all OS languages, the used locals are: EN-US, DE-DE, DE-CH, FR-FR, FR-CH, IT-IT, IT-CH
To implement this functionality, following code has been added as early as possible in the constructor of App.xaml.cs:
public App() {
Thread.CurrentThread.Name = "Main";
m_log.Info("Starting application");
// Assign command bindings to be OS language independent
EditingCommands.ToggleBold.InputGestures.Clear();
EditingCommands.ToggleBold.InputGestures.Add(new KeyGesture(Key.B, ModifierKeys.Control));
EditingCommands.ToggleItalic.InputGestures.Clear();
EditingCommands.ToggleItalic.InputGestures.Add(new KeyGesture(Key.I, ModifierKeys.Control));
TextFormattingCommands.ToggleStrikethrough.InputGestures.Clear();
TextFormattingCommands.ToggleStrikethrough.InputGestures.Add(new KeyGesture(Key.S, ModifierKeys.Control | ModifierKeys.Shift));
InitializeComponent();
}
Some observations:
- For my EN-US system, both CTRL+B and CTRL+I worked without the above code, as these are the default shortcuts.
- With the above code, CTRL+SHIFT+S made strike-through (which doesn't exist out of the box) work as expected.
- When testing on a DE-DE system, CTRL+I and CTRL+SHIFT+S work, but CTRL+B doesn't.
- Clearing the input gestures before setting them isn't really required, as InputGestures are empty for all of the above commands at this point.
- Tests have been perfromed on Win7 x64, but should work independently of the used Windows version
Question: How can I guarantee that these editing shortcuts behave the same way independently of the installed OS language?
[edit] Here's the relevant part of the DataTemplate using the CommandBindings:
<DataTemplate x:Key="QualificationTextItemTemplate" DataType="DienstleistenderQualifikationMerkmaleEntity">
<GroupBox>
<Grid HorizontalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="MerkmaleColumn" MinWidth="480"
Width="{Binding Path=ActualWidth, ConverterParameter=0.4,
RelativeSource={RelativeSource AncestorType=ListView, Mode=FindAncestor},
Converter={x:Static qualifikationen:QualificationItemFreeRichTextBoxWidthConverter.Instance}}"/>
<ColumnDefinition SharedSizeGroup="OhneBeurteilungColumn" MinWidth="128"
Width="{Binding Path=ActualWidth, ConverterParameter=0.1,
RelativeSource={RelativeSource AncestorType=ListView, Mode=FindAncestor},
Converter={x:Static qualifikationen:QualificationItemFreeRichTextBoxWidthConverter.Instance}}"/>
<ColumnDefinition SharedSizeGroup="BeurteilungColumn" MinWidth="128"
Width="{Binding Path=ActualWidth, ConverterParameter=0.1,
RelativeSource={RelativeSource AncestorType=ListView, Mode=FindAncestor},
Converter={x:Static qualifikationen:QualificationItemFreeRichTextBoxWidthConverter.Instance}}"/>
<ColumnDefinition SharedSizeGroup="BemerkungColumn"
Width="{Binding Path=ActualWidth, ConverterParameter=0.4,
RelativeSource={RelativeSource AncestorType=ListView, Mode=FindAncestor},
Converter={x:Static qualifikationen:QualificationItemFreeRichTextBoxWidthConverter.Instance}}"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
[...]
<UIControls:BindableRichTextBox Grid.Row="1"
Grid.Column="0"
Height="Auto"
VerticalAlignment="Stretch"
Margin="15 0 10 0"
SpellCheck.IsEnabled="False"
MaxLength="2000"
DisplayedTextToBoundTextConverter="{x:Static qualifikationen:QualificationItemDescriptionValueConverter.XamlToMILOFormatConverter}"
BoundTextToDisplayedTextConverter="{x:Static qualifikationen:QualificationItemDescriptionValueConverter.MILOFormatToXamlConverter}"
Text="{Binding Path=Verhaltensmerkmal, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
TextChangedManually="OnQualificationItemPropertyChanged" VerticalScrollBarVisibility="Auto">
<RichTextBox.Resources>
<Style TargetType="{x:Type Paragraph}">
<Setter Property="Margin" Value="0"/>
</Style>
</RichTextBox.Resources>
<Control.Visibility>
<MultiBinding Converter="{x:Static qualifikationen:QualificationItemDescriptionVisibilityConverter.Instance}">
<Binding Path="QualifikationItem.ItemStyle" Mode="OneTime" />
<Binding Path="QualifikationItem.Protected" Mode="OneTime" />
<Binding Path="QualifikationItem.Description" Mode="OneTime" />
</MultiBinding>
</Control.Visibility>
<TextBoxBase.IsReadOnly>
<MultiBinding Converter="{x:Static qualifikationen:QualificationItemDescriptionReadOnlyConverter.Instance}">
<Binding Path="Visibility" RelativeSource="{RelativeSource Mode=Self}" />
<Binding Path="QualifikationItem.Protected" Mode="OneWay" />
<Binding Path="Beurteilt" />
</MultiBinding>
</TextBoxBase.IsReadOnly>
<RichTextBox.InputBindings>
<KeyBinding Command="ApplicationCommands.NotACommand" Key="U" Modifiers="Control"/>
<KeyBinding Command="ApplicationCommands.NotACommand" Key="L" Modifiers="Control"/>
<KeyBinding Command="ApplicationCommands.NotACommand" Key="E" Modifiers="Control"/>
<KeyBinding Command="ApplicationCommands.NotACommand" Key="R" Modifiers="Control"/>
<KeyBinding Command="ApplicationCommands.NotACommand" Key="OemCloseBrackets" Modifiers="Control"/>
<KeyBinding Command="ApplicationCommands.NotACommand" Key="OemOpenBrackets" Modifiers="Control"/>
</RichTextBox.InputBindings>
<RichTextBox.CommandBindings>
<CommandBinding Command="EditingCommands.ToggleBold"
CanExecute="OnRichTextBoxEditingCommandsCanExecuteChecked"
Executed="OnRichTextBoxToggleBoldCommandExecuted"/>
<CommandBinding Command="EditingCommands.ToggleItalic"
CanExecute="OnRichTextBoxEditingCommandsCanExecuteChecked"
Executed="OnRichTextBoxToggleItalicCommandExecuted"/>
<CommandBinding Command="FormattingCommands:TextFormattingCommands.ToggleStrikethrough"
CanExecute="OnRichTextBoxEditingCommandsCanExecuteChecked"
Executed="OnRichTextBoxToggleStrikethroughCommandExecuted"/>
</RichTextBox.CommandBindings>
<Control.ContextMenu>
<ContextMenu>
<MenuItem Header="{rootLoc:LocText Dict=Resources, Key=ContextMenuCutHeader}" Command="ApplicationCommands.Cut"/>
<MenuItem Header="{rootLoc:LocText Dict=Resources, Key=ContextMenuCopyHeader}" Command="ApplicationCommands.Copy"/>
<MenuItem Header="{rootLoc:LocText Dict=Resources, Key=ContextMenuPasteHeader}" Command="ApplicationCommands.Paste"/>
<Separator />
<MenuItem Header="{LocText CommonResources:BoldButtonText}"
Command="EditingCommands.ToggleBold"
InputGestureText="Ctrl+B"/>
<MenuItem Header="{LocText CommonResources:ItalicButtonText}"
Command="EditingCommands.ToggleItalic"
InputGestureText="Ctrl+I"/>
<MenuItem Header="{LocText CommonResources:StrokeButtonText}"
Command="FormattingCommands:TextFormattingCommands.ToggleStrikethrough"
InputGestureText="Ctrl+Shift+S"/>
</ContextMenu>
</Control.ContextMenu>
</UIControls:BindableRichTextBox>
[...]
</Grid>
</GroupBox>
</DataTemplate>
[edit2] On the DE-DE machine (where CTRL+B isn't working), the same shortcut is working in Wordpad. Not sure if Wordpad overrides the default shortcut as I couldn't find any hint on the shortcut to use. At least in Word, the shortcut is CTRL+SHIFT+F (http://forum.chip.de/office/tastaturkuerzel-fuer-fett-unterstrichen-kursiv-548164.html)
[edit3] When changing the the input gesture to CTRL+Q (just to test another key combination) using EditingCommands.ToggleBold.InputGestures.Add(new KeyGesture(Key.Q, ModifierKeys.Control));, CTRL+Q makes the text bold for all OS languages.
