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path: root/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Logging/Views/EmbeddedLogsView.xaml
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<UserControl x:Class="Tango.MachineStudio.Logging.Views.EmbeddedLogsView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:autoComplete="clr-namespace:Tango.AutoComplete.Editors;assembly=Tango.AutoComplete"
             xmlns:autoCompleteMachine="clr-namespace:Tango.MachineStudio.Common.AutoComplete;assembly=Tango.MachineStudio.Common"
             xmlns:converters="clr-namespace:Tango.SharedUI.Converters;assembly=Tango.SharedUI"
             xmlns:global="clr-namespace:Tango.MachineStudio.Logging"
             xmlns:localConverters="clr-namespace:Tango.MachineStudio.Logging.Converters"
             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
             xmlns:vm="clr-namespace:Tango.MachineStudio.Logging.ViewModels"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:Tango.MachineStudio.Logging.Views"
             mc:Ignorable="d" 
             d:DesignHeight="1080" d:DesignWidth="1920" d:DataContext="{d:DesignInstance Type=vm:EmbeddedLogsViewVM, IsDesignTimeCreatable=False}" DataContext="{x:Static global:ViewModelLocator.EmbeddedLogsViewVM}">
    <UserControl.Resources>
        <autoCompleteMachine:MachinesProvider x:Key="MachinesProvider" />
        <converters:DateTimeUTCToShortDateTimeConverter x:Key="DateTimeUTCToShortDateTimeConverter" />
        <converters:DateTimeUTCToStringConverter x:Key="DateTimeUTCToStringConverter" />
        <localConverters:DateIsInListToBooleanConverter x:Key="DateIsInListToBooleanConverter" />

        <Style x:Key="CustomCalendarDayButtonStyle" TargetType="{x:Type CalendarDayButton}" BasedOn="{StaticResource MaterialDesignCalendarDayButton}">
            <Style.Triggers>
                <DataTrigger Value="True">
                    <DataTrigger.Binding>
                        <MultiBinding Converter="{StaticResource DateIsInListToBooleanConverter}">
                            <Binding />
                            <Binding RelativeSource="{RelativeSource AncestorType=UserControl}" Path="DataContext.Dates" />
                            <Binding RelativeSource="{RelativeSource AncestorType=DatePicker}" Path="IsDropDownOpen" ></Binding>
                        </MultiBinding>
                    </DataTrigger.Binding>
                    <Setter Property="Foreground" Value="{StaticResource AccentColorBrush}" />
                </DataTrigger>
            </Style.Triggers>
        </Style>

        <Style x:Key="HighlightDatePickerStyle" TargetType="{x:Type Calendar}" BasedOn="{StaticResource {x:Type Calendar}}">
            <Setter Property="CalendarDayButtonStyle" Value="{StaticResource CustomCalendarDayButtonStyle}" />
        </Style>

        <Style TargetType="DatePickerTextBox" BasedOn="{StaticResource {x:Type DatePickerTextBox}}">
            <Setter Property="IsReadOnly" Value="True"/>
        </Style>
    </UserControl.Resources>

    <Grid>
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="79"/>
                <RowDefinition Height="1*"/>
            </Grid.RowDefinitions>

            <Border Background="#F1F1F1">
                <Border.Effect>
                    <DropShadowEffect />
                </Border.Effect>
                <Grid>
                    <StackPanel Orientation="Horizontal">
                        <Button Margin="10 0 0 0" Height="50" Style="{StaticResource MaterialDesignFlatButton}" Foreground="#202020" Command="{Binding NavigateToHomeCommand}" HorizontalContentAlignment="Left">
                            <StackPanel Orientation="Horizontal" >
                                <materialDesign:PackIcon Kind="ArrowLeftBold" Width="20" Height="20" />
                                <TextBlock Margin="5 0 0 0" FontSize="16">BACK</TextBlock>
                            </StackPanel>
                        </Button>
                        <Border Margin="10" Padding="5" BorderBrush="DimGray" BorderThickness="1">
                            <Border.Background>
                                <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
                                    <GradientStop Color="White"/>
                                    <GradientStop Color="#FFEAEAEA" Offset="1"/>
                                </LinearGradientBrush>
                            </Border.Background>
                            <StackPanel Orientation="Horizontal">
                                <materialDesign:PackIcon Kind="Calendar" Width="24" Height="24" VerticalAlignment="Bottom" Margin="0 0 0 5" />
                                <DatePicker x:Name="datePicker" DisplayDateStart="{Binding MinDate}" DisplayDateEnd="{Binding MaxDate}" CalendarStyle="{StaticResource HighlightDatePickerStyle}" SelectedDate="{Binding SelectedDate}" materialDesign:HintAssist.Hint="Pick Date" Margin="10 0 0 5" Width="200" VerticalAlignment="Bottom" FontSize="16">
                                </DatePicker>
                                <ToggleButton VerticalAlignment="Bottom" Margin="20 0 0 5" IsChecked="{Binding IsRealTime}"></ToggleButton>
                                <TextBlock VerticalAlignment="Center" Margin="10 17 0 0">Real-Time</TextBlock>
                            </StackPanel>
                        </Border>

                        <Button Style="{StaticResource MaterialDesignFlatButton}" Command="{Binding ToggleRealTimePaused}" Padding="0" Height="50" Width="50" Foreground="#202020" ToolTip="Pause/Resume Real-Time">
                            <materialDesign:PackIcon Width="50" Height="50">
                                <materialDesign:PackIcon.Style>
                                    <Style TargetType="materialDesign:PackIcon">
                                        <Setter Property="Kind" Value="Pause"></Setter>
                                        <Style.Triggers>
                                            <DataTrigger Binding="{Binding RealTimePaused}" Value="True">
                                                <Setter Property="Kind" Value="Play"></Setter>
                                            </DataTrigger>
                                        </Style.Triggers>
                                    </Style>
                                </materialDesign:PackIcon.Style>
                            </materialDesign:PackIcon>
                        </Button>

                        <Button Margin="20 0 0 0" Background="#FF7777" BorderBrush="#FF7777" ToolTip="Clear real-time logs" Command="{Binding ClearRealTimeLogsCommand}">
                            <StackPanel Orientation="Horizontal">
                                <materialDesign:PackIcon Width="24" Height="24" Kind="DeleteSweep" />
                                <TextBlock VerticalAlignment="Center" Margin="10 0 0 0">CLEAR</TextBlock>
                            </StackPanel>
                        </Button>
                    </StackPanel>
                </Grid>
            </Border>

            <Grid Grid.Row="1" Background="#B3FFFFFF">
                <Grid Margin="10">
                    <Grid.ColumnDefinitions>

                        <ColumnDefinition Width="1*"/>
                    </Grid.ColumnDefinitions>

                    <Grid>
                        <Grid>
                            <Grid>
                                <DataGrid x:Name="grid" SelectedCellsChanged="grid_SelectedCellsChanged" Background="Transparent" AutoGenerateColumns="False" SelectionMode="Single" ItemsSource="{Binding Logs}" SelectedItem="{Binding SelectedLog}" RowHeight="40" CanUserAddRows="False" CanUserDeleteRows="False" CanUserReorderColumns="True" IsReadOnly="True">
                                    <DataGrid.RowStyle>
                                        <Style TargetType="DataGridRow" BasedOn="{StaticResource {x:Type DataGridRow}}">
                                            <Style.Triggers>
                                                <Trigger Property="IsMouseOver" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                    <Setter Property="Foreground" Value="{StaticResource AccentColorBrush}" />
                                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                                </Trigger>
                                                <Trigger Property="IsSelected" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                </Trigger>
                                                <Trigger Property="IsFocused" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                </Trigger>
                                                <!--<DataTrigger Binding="{Binding CallerMethodName}" Value="OnStartup">
                                                    <Setter Property="Background" Value="{StaticResource AccentColorBrush}"></Setter>
                                                    <Setter Property="Foreground" Value="White" />
                                                    <Setter Property="FontWeight" Value="SemiBold"></Setter>
                                                    <Setter Property="Cursor" Value="Arrow"></Setter>
                                                </DataTrigger>-->
                                            </Style.Triggers>
                                        </Style>
                                    </DataGrid.RowStyle>
                                    <DataGrid.CellStyle>
                                        <Style TargetType="DataGridCell" BasedOn="{StaticResource {x:Type DataGridCell}}">
                                            <Setter Property="BorderThickness" Value="0"/>
                                            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                                            <Setter Property="VerticalContentAlignment" Value="Center"></Setter>
                                            <Style.Triggers>
                                                <Trigger Property="IsSelected" Value="True">
                                                    <Setter Property="Background" Value="Transparent"></Setter>
                                                </Trigger>
                                                <!--<DataTrigger Binding="{Binding CallerMethodName}" Value="OnStartup">
                                                    <Setter Property="Background" Value="{StaticResource AccentColorBrush}"></Setter>
                                                    <Setter Property="Foreground" Value="White" />
                                                    <Setter Property="FontWeight" Value="SemiBold"></Setter>
                                                    <Setter Property="Cursor" Value="Arrow"></Setter>
                                                </DataTrigger>-->
                                            </Style.Triggers>
                                        </Style>
                                    </DataGrid.CellStyle>
                                    <DataGrid.Columns>
                                        <DataGridTemplateColumn Header="#">
                                            <DataGridTemplateColumn.CellTemplate>
                                                <DataTemplate>
                                                    <materialDesign:PackIcon Width="16" Height="16">
                                                        <materialDesign:PackIcon.Style>
                                                            <Style TargetType="materialDesign:PackIcon">
                                                                <Setter Property="Kind" Value="Alert"></Setter>
                                                                <Style.Triggers>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Info">
                                                                        <Setter Property="Kind" Value="Information"></Setter>
                                                                        <Setter Property="Foreground" Value="DimGray"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Warning">
                                                                        <Setter Property="Kind" Value="Alert"></Setter>
                                                                        <Setter Property="Foreground" Value="#FFA300"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Error">
                                                                        <Setter Property="Kind" Value="AlertOctagon"></Setter>
                                                                        <Setter Property="Foreground" Value="#FF5C5C"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Critical">
                                                                        <Setter Property="Kind" Value="BellPlus"></Setter>
                                                                        <Setter Property="Foreground" Value="Red"></Setter>
                                                                    </DataTrigger>
                                                                    <DataTrigger Binding="{Binding Category}" Value="Debug">
                                                                        <Setter Property="Kind" Value="Bug"></Setter>
                                                                        <Setter Property="Foreground" Value="#303030"></Setter>
                                                                    </DataTrigger>
                                                                    <!--<DataTrigger Binding="{Binding CallerMethodName}" Value="OnStartup">
                                                                        <Setter Property="Kind" Value="ClockFast"></Setter>
                                                                        <Setter Property="Foreground" Value="White"></Setter>
                                                                    </DataTrigger>-->
                                                                </Style.Triggers>
                                                            </Style>
                                                        </materialDesign:PackIcon.Style>
                                                    </materialDesign:PackIcon>
                                                </DataTemplate>
                                            </DataGridTemplateColumn.CellTemplate>
                                        </DataGridTemplateColumn>
                                        <DataGridTextColumn Header="DATE TIME" Binding="{Binding TimeStamp,StringFormat='MM/dd/yyyy HH:mm:ss.ff'}" />
                                        <DataGridTextColumn Header="FILE" Binding="{Binding DebugLogResponse.FileName}" />
                                        <DataGridTextColumn Header="LINE" Binding="{Binding DebugLogResponse.LineNumber}" />
                                        <DataGridTextColumn Header="MODULE" Binding="{Binding DebugLogResponse.ModuleId}" />
                                        <DataGridTextColumn Header="FILTER" Binding="{Binding DebugLogResponse.Filter}" />
                                        <DataGridTemplateColumn Header="MESSAGE" Width="1*">
                                            <DataGridTemplateColumn.CellTemplate>
                                                <DataTemplate>
                                                    <TextBlock Text="{Binding MessagePlusRepeated}" TextTrimming="CharacterEllipsis"></TextBlock>
                                                </DataTemplate>
                                            </DataGridTemplateColumn.CellTemplate>
                                        </DataGridTemplateColumn>
                                    </DataGrid.Columns>
                                </DataGrid>
                            </Grid>
                        </Grid>
                    </Grid>
                </Grid>
            </Grid>
        </Grid>
    </Grid>
</UserControl>
s="w"> Alt | Shift, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight)); AddBinding(EditingCommands.MoveUpByLine, None, Key.Up, OnMoveCaret(CaretMovementType.LineUp)); AddBinding(EditingCommands.SelectUpByLine, Shift, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp)); AddBinding(RectangleSelection.BoxSelectUpByLine, Alt | Shift, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp)); AddBinding(EditingCommands.MoveDownByLine, None, Key.Down, OnMoveCaret(CaretMovementType.LineDown)); AddBinding(EditingCommands.SelectDownByLine, Shift, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown)); AddBinding(RectangleSelection.BoxSelectDownByLine, Alt | Shift, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown)); AddBinding(EditingCommands.MoveDownByPage, None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown)); AddBinding(EditingCommands.SelectDownByPage, Shift, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown)); AddBinding(EditingCommands.MoveUpByPage, None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp)); AddBinding(EditingCommands.SelectUpByPage, Shift, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp)); AddBinding(EditingCommands.MoveToLineStart, None, Key.Home, OnMoveCaret(CaretMovementType.LineStart)); AddBinding(EditingCommands.SelectToLineStart, Shift, Key.Home, OnMoveCaretExtendSelection(CaretMovementType.LineStart)); AddBinding(RectangleSelection.BoxSelectToLineStart, Alt | Shift, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart)); AddBinding(EditingCommands.MoveToLineEnd, None, Key.End, OnMoveCaret(CaretMovementType.LineEnd)); AddBinding(EditingCommands.SelectToLineEnd, Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.LineEnd)); AddBinding(RectangleSelection.BoxSelectToLineEnd, Alt | Shift, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd)); AddBinding(EditingCommands.MoveToDocumentStart, Ctrl, Key.Home, OnMoveCaret(CaretMovementType.DocumentStart)); AddBinding(EditingCommands.SelectToDocumentStart, Ctrl | Shift, Key.Home, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart)); AddBinding(EditingCommands.MoveToDocumentEnd, Ctrl, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd)); AddBinding(EditingCommands.SelectToDocumentEnd, Ctrl | Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd)); CommandBindings.Add(new CommandBinding(ApplicationCommands.SelectAll, OnSelectAll)); TextAreaDefaultInputHandler.WorkaroundWPFMemoryLeak(InputBindings); } static void OnSelectAll(object target, ExecutedRoutedEventArgs args) { TextArea textArea = GetTextArea(target); if (textArea != null && textArea.Document != null) { args.Handled = true; textArea.Caret.Offset = textArea.Document.TextLength; textArea.Selection = SimpleSelection.Create(textArea, 0, textArea.Document.TextLength); } } static TextArea GetTextArea(object target) { return target as TextArea; } enum CaretMovementType { CharLeft, CharRight, WordLeft, WordRight, LineUp, LineDown, PageUp, PageDown, LineStart, LineEnd, DocumentStart, DocumentEnd } static ExecutedRoutedEventHandler OnMoveCaret(CaretMovementType direction) { return (target, args) => { TextArea textArea = GetTextArea(target); if (textArea != null && textArea.Document != null) { args.Handled = true; textArea.ClearSelection(); MoveCaret(textArea, direction); textArea.Caret.BringCaretToView(); } }; } static ExecutedRoutedEventHandler OnMoveCaretExtendSelection(CaretMovementType direction) { return (target, args) => { TextArea textArea = GetTextArea(target); if (textArea != null && textArea.Document != null) { args.Handled = true; TextViewPosition oldPosition = textArea.Caret.Position; MoveCaret(textArea, direction); textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position); if (!textArea.Document.IsInUpdate) // if we're inside a larger update (e.g. called by EditingCommandHandler.OnDelete()), avoid calculating the caret rectangle now textArea.Caret.BringCaretToView(); } }; } static ExecutedRoutedEventHandler OnMoveCaretBoxSelection(CaretMovementType direction) { return (target, args) => { TextArea textArea = GetTextArea(target); if (textArea != null && textArea.Document != null) { args.Handled = true; // First, convert the selection into a rectangle selection // (this is required so that virtual space gets enabled for the caret movement) if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection)) { if (textArea.Selection.IsEmpty) { textArea.Selection = new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position); } else { // Convert normal selection to rectangle selection textArea.Selection = new RectangleSelection(textArea, textArea.Selection.StartPosition, textArea.Caret.Position); } } // Now move the caret and extend the selection TextViewPosition oldPosition = textArea.Caret.Position; MoveCaret(textArea, direction); textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position); textArea.Caret.BringCaretToView(); } }; } #region Caret movement static void MoveCaret(TextArea textArea, CaretMovementType direction) { DocumentLine caretLine = textArea.Document.GetLineByNumber(textArea.Caret.Line); VisualLine visualLine = textArea.TextView.GetOrConstructVisualLine(caretLine); TextViewPosition caretPosition = textArea.Caret.Position; TextLine textLine = visualLine.GetTextLine(caretPosition.VisualColumn); switch (direction) { case CaretMovementType.CharLeft: MoveCaretLeft(textArea, caretPosition, visualLine, CaretPositioningMode.Normal); break; case CaretMovementType.CharRight: MoveCaretRight(textArea, caretPosition, visualLine, CaretPositioningMode.Normal); break; case CaretMovementType.WordLeft: MoveCaretLeft(textArea, caretPosition, visualLine, CaretPositioningMode.WordStart); break; case CaretMovementType.WordRight: MoveCaretRight(textArea, caretPosition, visualLine, CaretPositioningMode.WordStart); break; case CaretMovementType.LineUp: case CaretMovementType.LineDown: case CaretMovementType.PageUp: case CaretMovementType.PageDown: MoveCaretUpDown(textArea, direction, visualLine, textLine, caretPosition.VisualColumn); break; case CaretMovementType.DocumentStart: SetCaretPosition(textArea, 0, 0); break; case CaretMovementType.DocumentEnd: SetCaretPosition(textArea, -1, textArea.Document.TextLength); break; case CaretMovementType.LineStart: MoveCaretToStartOfLine(textArea, visualLine); break; case CaretMovementType.LineEnd: MoveCaretToEndOfLine(textArea, visualLine); break; default: throw new NotSupportedException(direction.ToString()); } } #endregion #region Home/End static void MoveCaretToStartOfLine(TextArea textArea, VisualLine visualLine) { int newVC = visualLine.GetNextCaretPosition(-1, LogicalDirection.Forward, CaretPositioningMode.WordStart, textArea.Selection.EnableVirtualSpace); if (newVC < 0) throw ThrowUtil.NoValidCaretPosition(); // when the caret is already at the start of the text, jump to start before whitespace if (newVC == textArea.Caret.VisualColumn) newVC = 0; int offset = visualLine.FirstDocumentLine.Offset + visualLine.GetRelativeOffset(newVC); SetCaretPosition(textArea, newVC, offset); } static void MoveCaretToEndOfLine(TextArea textArea, VisualLine visualLine) { int newVC = visualLine.VisualLength; int offset = visualLine.FirstDocumentLine.Offset + visualLine.GetRelativeOffset(newVC); SetCaretPosition(textArea, newVC, offset); } #endregion #region By-character / By-word movement static void MoveCaretRight(TextArea textArea, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode) { int pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, textArea.Selection.EnableVirtualSpace); if (pos >= 0) { SetCaretPosition(textArea, pos, visualLine.GetRelativeOffset(pos) + visualLine.FirstDocumentLine.Offset); } else { // move to start of next line DocumentLine nextDocumentLine = visualLine.LastDocumentLine.NextLine; if (nextDocumentLine != null) { VisualLine nextLine = textArea.TextView.GetOrConstructVisualLine(nextDocumentLine); pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, textArea.Selection.EnableVirtualSpace); if (pos < 0) throw ThrowUtil.NoValidCaretPosition(); SetCaretPosition(textArea, pos, nextLine.GetRelativeOffset(pos) + nextLine.FirstDocumentLine.Offset); } else { // at end of document Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textArea.Document.TextLength); SetCaretPosition(textArea, -1, textArea.Document.TextLength); } } } static void MoveCaretLeft(TextArea textArea, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode) { int pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, textArea.Selection.EnableVirtualSpace); if (pos >= 0) { SetCaretPosition(textArea, pos, visualLine.GetRelativeOffset(pos) + visualLine.FirstDocumentLine.Offset); } else { // move to end of previous line DocumentLine previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine; if (previousDocumentLine != null) { VisualLine previousLine = textArea.TextView.GetOrConstructVisualLine(previousDocumentLine); pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, textArea.Selection.EnableVirtualSpace); if (pos < 0) throw ThrowUtil.NoValidCaretPosition(); SetCaretPosition(textArea, pos, previousLine.GetRelativeOffset(pos) + previousLine.FirstDocumentLine.Offset); } else { // at start of document Debug.Assert(visualLine.FirstDocumentLine.Offset == 0); SetCaretPosition(textArea, 0, 0); } } } #endregion #region Line+Page up/down static void MoveCaretUpDown(TextArea textArea, CaretMovementType direction, VisualLine visualLine, TextLine textLine, int caretVisualColumn) { // moving up/down happens using the desired visual X position double xPos = textArea.Caret.DesiredXPos; if (double.IsNaN(xPos)) xPos = visualLine.GetTextLineVisualXPosition(textLine, caretVisualColumn); // now find the TextLine+VisualLine where the caret will end up in VisualLine targetVisualLine = visualLine; TextLine targetLine; int textLineIndex = visualLine.TextLines.IndexOf(textLine); switch (direction) { case CaretMovementType.LineUp: { // Move up: move to the previous TextLine in the same visual line // or move to the last TextLine of the previous visual line int prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1; if (textLineIndex > 0) { targetLine = visualLine.TextLines[textLineIndex - 1]; } else if (prevLineNumber >= 1) { DocumentLine prevLine = textArea.Document.GetLineByNumber(prevLineNumber); targetVisualLine = textArea.TextView.GetOrConstructVisualLine(prevLine); targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1]; } else { targetLine = null; } break; } case CaretMovementType.LineDown: { // Move down: move to the next TextLine in the same visual line // or move to the first TextLine of the next visual line int nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1; if (textLineIndex < visualLine.TextLines.Count - 1) { targetLine = visualLine.TextLines[textLineIndex + 1]; } else if (nextLineNumber <= textArea.Document.LineCount) { DocumentLine nextLine = textArea.Document.GetLineByNumber(nextLineNumber); targetVisualLine = textArea.TextView.GetOrConstructVisualLine(nextLine); targetLine = targetVisualLine.TextLines[0]; } else { targetLine = null; } break; } case CaretMovementType.PageUp: case CaretMovementType.PageDown: { // Page up/down: find the target line using its visual position double yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle); if (direction == CaretMovementType.PageUp) yPos -= textArea.TextView.RenderSize.Height; else yPos += textArea.TextView.RenderSize.Height; DocumentLine newLine = textArea.TextView.GetDocumentLineByVisualTop(yPos); targetVisualLine = textArea.TextView.GetOrConstructVisualLine(newLine); targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos); break; } default: throw new NotSupportedException(direction.ToString()); } if (targetLine != null) { double yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle); int newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), textArea.Selection.EnableVirtualSpace); SetCaretPosition(textArea, targetVisualLine, targetLine, newVisualColumn, false); textArea.Caret.DesiredXPos = xPos; } } #endregion #region SetCaretPosition static void SetCaretPosition(TextArea textArea, VisualLine targetVisualLine, TextLine targetLine, int newVisualColumn, bool allowWrapToNextLine) { int targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine); if (!allowWrapToNextLine && newVisualColumn >= targetLineStartCol + targetLine.Length) { if (newVisualColumn <= targetVisualLine.VisualLength) newVisualColumn = targetLineStartCol + targetLine.Length - 1; } int newOffset = targetVisualLine.GetRelativeOffset(newVisualColumn) + targetVisualLine.FirstDocumentLine.Offset; SetCaretPosition(textArea, newVisualColumn, newOffset); } static void SetCaretPosition(TextArea textArea, int newVisualColumn, int newOffset) { textArea.Caret.Position = new TextViewPosition(textArea.Document.GetLocation(newOffset), newVisualColumn); textArea.Caret.DesiredXPos = double.NaN; } #endregion } }