mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-26 15:57:56 +01:00
660 lines
22 KiB
C#
660 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace UICatalog.Scenarios;
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[ScenarioMetadata ("Text Alignment and Direction", "Demos horizontal and vertical text alignment and direction.")]
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[ScenarioCategory ("Text and Formatting")]
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public class TextAlignmentAndDirection : Scenario
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{
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internal class AlignmentAndDirectionView : View
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{
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public AlignmentAndDirectionView ()
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{
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent;
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BorderStyle = LineStyle.Dotted;
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}
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}
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public override void Main ()
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{
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Application.Init ();
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Window app = new ()
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{
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Title = GetQuitKeyAndName ()
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};
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var txt = $"Hello World{Environment.NewLine}HELLO WORLD{Environment.NewLine}世界 您好";
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SchemeManager.AddScheme ("TextAlignmentAndDirection1", new Scheme { Normal = new (Color.Black, Color.Gray) });
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SchemeManager.AddScheme ("TextAlignmentAndDirection2", new Scheme { Normal = new (Color.Black, Color.DarkGray) });
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List<View> singleLineLabels = new (); // single line
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List<View> multiLineLabels = new (); // multi line
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// Horizontal Single-Line
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var labelHL = new Label
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{
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X = 0,
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Y = 0,
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Width = 6,
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Height = 1,
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TextAlignment = Alignment.End,
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SchemeName = "Dialog",
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Text = "Start",
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};
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var labelHC = new Label
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{
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X = 0,
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Y = 1,
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Width = 6,
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Height = 1,
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TextAlignment = Alignment.End,
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SchemeName = "Dialog",
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Text = "Center"
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};
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var labelHR = new Label
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{
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X = 0,
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Y = 2,
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Width = 6,
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Height = 1,
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TextAlignment = Alignment.End,
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SchemeName = "Dialog",
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Text = "End"
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};
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var labelHJ = new Label
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{
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X = 0,
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Y = 3,
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Width = 6,
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Height = 1,
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TextAlignment = Alignment.End,
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SchemeName = "Dialog",
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Text = "Fill"
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};
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var txtLabelHL = new View
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{
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X = Pos.Right (labelHL) + 1,
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Y = Pos.Y (labelHL),
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Width = Dim.Fill (9),
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Height = 1,
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SchemeName = "TextAlignmentAndDirection1",
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TextAlignment = Alignment.Start,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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var txtLabelHC = new View
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{
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X = Pos.Right (labelHC) + 1,
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Y = Pos.Y (labelHC),
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Width = Dim.Fill (9),
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Height = 1,
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SchemeName = "TextAlignmentAndDirection2",
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TextAlignment = Alignment.Center,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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var txtLabelHR = new View
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{
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X = Pos.Right (labelHR) + 1,
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Y = Pos.Y (labelHR),
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Width = Dim.Fill (9),
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Height = 1,
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SchemeName = "TextAlignmentAndDirection1",
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TextAlignment = Alignment.End,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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var txtLabelHJ = new View
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{
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X = Pos.Right (labelHJ) + 1,
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Y = Pos.Y (labelHJ),
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Width = Dim.Fill (9),
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Height = 1,
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SchemeName = "TextAlignmentAndDirection2",
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TextAlignment = Alignment.Fill,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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singleLineLabels.Add (txtLabelHL);
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singleLineLabels.Add (txtLabelHC);
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singleLineLabels.Add (txtLabelHR);
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singleLineLabels.Add (txtLabelHJ);
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app.Add (labelHL);
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app.Add (txtLabelHL);
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app.Add (labelHC);
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app.Add (txtLabelHC);
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app.Add (labelHR);
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app.Add (txtLabelHR);
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app.Add (labelHJ);
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app.Add (txtLabelHJ);
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// Vertical Single-Line
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var labelVT = new Label
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{
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X = Pos.AnchorEnd () - 6,
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Y = 0,
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Width = 2,
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Height = 6,
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SchemeName = "TextAlignmentAndDirection1",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.End,
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Text = "Start"
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};
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labelVT.TextFormatter.WordWrap = false;
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var labelVM = new Label
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{
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X = Pos.AnchorEnd () - 4,
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Y = 0,
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Width = 2,
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Height = 6,
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SchemeName = "TextAlignmentAndDirection1",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.End,
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Text = "Center"
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};
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labelVM.TextFormatter.WordWrap = false;
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var labelVB = new Label
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{
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X = Pos.AnchorEnd () - 2,
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Y = 0,
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Width = 2,
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Height = 6,
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SchemeName = "TextAlignmentAndDirection1",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.End,
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Text = "End"
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};
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labelVB.TextFormatter.WordWrap = false;
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var labelVJ = new Label
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{
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X = Pos.AnchorEnd (),
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Y = 0,
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Width = 2,
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Height = 6,
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SchemeName = "TextAlignmentAndDirection1",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.End,
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Text = "Fill"
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};
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labelVJ.TextFormatter.WordWrap = false;
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var txtLabelVT = new View
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{
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X = Pos.X (labelVT),
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Y = Pos.Bottom (labelVT) + 1,
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Width = 2,
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Height = Dim.Fill (),
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SchemeName = "TextAlignmentAndDirection1",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.Start,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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txtLabelVT.TextFormatter.WordWrap = false;
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var txtLabelVM = new View
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{
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X = Pos.X (labelVM),
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Y = Pos.Bottom (labelVM) + 1,
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Width = 2,
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Height = Dim.Fill (),
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SchemeName = "TextAlignmentAndDirection2",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.Center,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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txtLabelVM.TextFormatter.WordWrap = false;
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var txtLabelVB = new View
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{
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X = Pos.X (labelVB),
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Y = Pos.Bottom (labelVB) + 1,
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Width = 2,
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Height = Dim.Fill (),
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SchemeName = "TextAlignmentAndDirection1",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.End,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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txtLabelVB.TextFormatter.WordWrap = false;
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var txtLabelVJ = new View
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{
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X = Pos.X (labelVJ),
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Y = Pos.Bottom (labelVJ) + 1,
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Width = 2,
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Height = Dim.Fill (),
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SchemeName = "TextAlignmentAndDirection2",
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TextDirection = TextDirection.TopBottom_LeftRight,
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VerticalTextAlignment = Alignment.Fill,
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Text = txt,
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ViewportSettings = Terminal.Gui.ViewBase.ViewportSettingsFlags.Transparent
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};
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txtLabelVJ.TextFormatter.WordWrap = false;
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singleLineLabels.Add (txtLabelVT);
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singleLineLabels.Add (txtLabelVM);
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singleLineLabels.Add (txtLabelVB);
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singleLineLabels.Add (txtLabelVJ);
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app.Add (labelVT);
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app.Add (txtLabelVT);
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app.Add (labelVM);
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app.Add (txtLabelVM);
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app.Add (labelVB);
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app.Add (txtLabelVB);
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app.Add (labelVJ);
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app.Add (txtLabelVJ);
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// Multi-Line
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var container = new View
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{
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X = 0,
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Y = Pos.Bottom (txtLabelHJ),
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Width = Dim.Fill (31),
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Height = Dim.Fill (4)
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//SchemeName = "TextAlignmentAndDirection2"
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};
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var txtLabelTL = new AlignmentAndDirectionView
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{
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X = 0,
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Y = 1,
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Width = Dim.Percent (100 / 3),
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Height = Dim.Percent (100 / 3),
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TextAlignment = Alignment.Start,
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VerticalTextAlignment = Alignment.Start,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelTL.TextFormatter.MultiLine = true;
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var txtLabelTC = new AlignmentAndDirectionView
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{
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X = Pos.Right (txtLabelTL),
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Y = 1,
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Width = Dim.Percent (100 / 3),
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Height = Dim.Percent (100 / 3),
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TextAlignment = Alignment.Center,
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VerticalTextAlignment = Alignment.Start,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelTC.TextFormatter.MultiLine = true;
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var txtLabelTR = new AlignmentAndDirectionView
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{
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X = Pos.Right (txtLabelTC),
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Y = 1,
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Width = Dim.Percent (100, DimPercentMode.Position),
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Height = Dim.Percent (100 / 3),
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TextAlignment = Alignment.End,
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VerticalTextAlignment = Alignment.Start,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelTR.TextFormatter.MultiLine = true;
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var txtLabelML = new AlignmentAndDirectionView
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{
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X = Pos.X (txtLabelTL),
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Y = Pos.Bottom (txtLabelTL),
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Width = Dim.Width (txtLabelTL),
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Height = Dim.Percent (100 / 3),
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TextAlignment = Alignment.Start,
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VerticalTextAlignment = Alignment.Center,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelML.TextFormatter.MultiLine = true;
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var txtLabelMC = new AlignmentAndDirectionView
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{
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X = Pos.X (txtLabelTC),
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Y = Pos.Bottom (txtLabelTC),
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Width = Dim.Width (txtLabelTC),
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Height = Dim.Percent (100 / 3),
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TextAlignment = Alignment.Center,
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VerticalTextAlignment = Alignment.Center,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelMC.TextFormatter.MultiLine = true;
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var txtLabelMR = new AlignmentAndDirectionView
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{
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X = Pos.X (txtLabelTR),
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Y = Pos.Bottom (txtLabelTR),
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Width = Dim.Percent (100, DimPercentMode.Position),
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Height = Dim.Percent (100 / 3),
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TextAlignment = Alignment.End,
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VerticalTextAlignment = Alignment.Center,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelMR.TextFormatter.MultiLine = true;
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var txtLabelBL = new AlignmentAndDirectionView
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{
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X = Pos.X (txtLabelML),
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Y = Pos.Bottom (txtLabelML),
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Width = Dim.Width (txtLabelML),
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Height = Dim.Percent (100, DimPercentMode.Position),
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TextAlignment = Alignment.Start,
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VerticalTextAlignment = Alignment.End,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelBL.TextFormatter.MultiLine = true;
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var txtLabelBC = new AlignmentAndDirectionView
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{
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X = Pos.X (txtLabelMC),
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Y = Pos.Bottom (txtLabelMC),
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Width = Dim.Width (txtLabelMC),
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Height = Dim.Percent (100, DimPercentMode.Position),
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TextAlignment = Alignment.Center,
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VerticalTextAlignment = Alignment.End,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelBC.TextFormatter.MultiLine = true;
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var txtLabelBR = new AlignmentAndDirectionView
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{
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X = Pos.X (txtLabelMR),
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Y = Pos.Bottom (txtLabelMR),
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Width = Dim.Percent (100, DimPercentMode.Position),
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Height = Dim.Percent (100, DimPercentMode.Position),
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TextAlignment = Alignment.End,
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VerticalTextAlignment = Alignment.End,
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SchemeName = "TextAlignmentAndDirection1",
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Text = txt,
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};
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txtLabelBR.TextFormatter.MultiLine = true;
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multiLineLabels.Add (txtLabelTL);
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multiLineLabels.Add (txtLabelTC);
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multiLineLabels.Add (txtLabelTR);
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multiLineLabels.Add (txtLabelML);
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multiLineLabels.Add (txtLabelMC);
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multiLineLabels.Add (txtLabelMR);
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multiLineLabels.Add (txtLabelBL);
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multiLineLabels.Add (txtLabelBC);
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multiLineLabels.Add (txtLabelBR);
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// Save Alignment in Data
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foreach (View t in multiLineLabels)
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{
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t.Data = new TextAlignmentData (t.TextAlignment, t.VerticalTextAlignment);
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}
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container.Add (txtLabelTL);
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container.Add (txtLabelTC);
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container.Add (txtLabelTR);
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container.Add (txtLabelML);
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container.Add (txtLabelMC);
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container.Add (txtLabelMR);
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container.Add (txtLabelBL);
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container.Add (txtLabelBC);
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container.Add (txtLabelBR);
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app.Add (container);
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// Edit Text
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var label = new Label
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{
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X = 1,
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Y = Pos.Bottom (container) + 1,
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Width = 10,
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Height = 1,
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Text = "Edit Text:"
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};
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var editText = new TextView
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{
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X = Pos.Right (label) + 1,
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Y = Pos.Top (label),
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Width = Dim.Fill (31),
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Height = 3,
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Text = txt
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};
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editText.MouseClick += (s, m) =>
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{
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foreach (View v in singleLineLabels)
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{
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v.Text = editText.Text;
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}
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foreach (View v in multiLineLabels)
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{
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v.Text = editText.Text;
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}
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};
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app.KeyUp += (s, m) =>
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{
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foreach (View v in singleLineLabels)
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{
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v.Text = editText.Text;
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}
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foreach (View v in multiLineLabels)
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{
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v.Text = editText.Text;
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}
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};
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editText.SetFocus ();
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app.Add (label, editText);
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// JUSTIFY CHECKBOX
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var justifyCheckbox = new CheckBox
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{
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X = Pos.Right (container) + 1,
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Y = Pos.Y (container) + 1,
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Width = Dim.Fill (10),
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Height = 1,
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Text = "Fill"
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};
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app.Add (justifyCheckbox);
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// JUSTIFY OPTIONS
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var justifyOptions = new RadioGroup
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{
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X = Pos.Left (justifyCheckbox) + 1,
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Y = Pos.Y (justifyCheckbox) + 1,
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Width = Dim.Fill (9),
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RadioLabels = ["Current direction", "Opposite direction", "FIll Both"],
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Enabled = false
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};
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justifyCheckbox.CheckedStateChanging += (s, e) => ToggleJustify (e.Result != CheckState.Checked);
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justifyOptions.SelectedItemChanged += (s, e) => { ToggleJustify (false, true); };
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app.Add (justifyOptions);
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// WRAP CHECKBOX
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var wrapCheckbox = new CheckBox
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{
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X = Pos.Right (container) + 1,
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Y = Pos.Bottom (justifyOptions),
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Width = Dim.Fill (10),
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Height = 1,
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Text = "Word Wrap"
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};
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wrapCheckbox.CheckedState = wrapCheckbox.TextFormatter.WordWrap ? CheckState.Checked : CheckState.UnChecked;
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wrapCheckbox.CheckedStateChanging += (s, e) =>
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{
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if (e.Result == CheckState.Checked)
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{
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foreach (View t in multiLineLabels)
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{
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t.TextFormatter.WordWrap = false;
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}
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}
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else
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{
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foreach (View t in multiLineLabels)
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{
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t.TextFormatter.WordWrap = true;
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}
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}
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};
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app.Add (wrapCheckbox);
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List<TextDirection> directionsEnum = Enum.GetValues (typeof (TextDirection)).Cast<TextDirection> ().ToList ();
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var directionOptions = new RadioGroup
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{
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X = Pos.Right (container) + 1,
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Y = Pos.Bottom (wrapCheckbox) + 1,
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Width = Dim.Fill (10),
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Height = Dim.Fill (1),
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HotKeySpecifier = (Rune)'\xffff',
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RadioLabels = directionsEnum.Select (e => e.ToString ()).ToArray ()
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};
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directionOptions.SelectedItemChanged += (s, ev) =>
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{
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bool justChecked = justifyCheckbox.CheckedState == CheckState.Checked;
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if (justChecked)
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{
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ToggleJustify (true);
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}
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foreach (View v in multiLineLabels)
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{
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v.TextDirection = (TextDirection)ev.SelectedItem;
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}
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if (justChecked)
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{
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ToggleJustify (false);
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}
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};
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app.Add (directionOptions);
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Application.Run (app);
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app.Dispose ();
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Application.Shutdown ();
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// Be a good citizen and remove the schemes we added
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SchemeManager.RemoveScheme ("TextAlignmentAndDirection1");
|
|
SchemeManager.RemoveScheme ("TextAlignmentAndDirection2");
|
|
|
|
return;
|
|
|
|
void ToggleJustify (bool oldValue, bool wasJustOptions = false)
|
|
{
|
|
if (oldValue)
|
|
{
|
|
if (!wasJustOptions)
|
|
{
|
|
justifyOptions.Enabled = false;
|
|
}
|
|
|
|
foreach (View t in multiLineLabels)
|
|
{
|
|
var data = (TextAlignmentData)t.Data;
|
|
t.TextAlignment = data!.h;
|
|
t.VerticalTextAlignment = data.v;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
foreach (View t in multiLineLabels)
|
|
{
|
|
if (!wasJustOptions)
|
|
{
|
|
justifyOptions.Enabled = true;
|
|
}
|
|
|
|
var data = (TextAlignmentData)t.Data;
|
|
|
|
if (TextFormatter.IsVerticalDirection (t.TextDirection))
|
|
{
|
|
switch (justifyOptions.SelectedItem)
|
|
{
|
|
case 0:
|
|
t.VerticalTextAlignment = Alignment.Fill;
|
|
t.TextAlignment = data!.h;
|
|
break;
|
|
case 1:
|
|
t.VerticalTextAlignment = data!.v;
|
|
t.TextAlignment = Alignment.Fill;
|
|
break;
|
|
case 2:
|
|
t.VerticalTextAlignment = Alignment.Fill;
|
|
t.TextAlignment = Alignment.Fill;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (justifyOptions.SelectedItem)
|
|
{
|
|
case 0:
|
|
t.TextAlignment = Alignment.Fill;
|
|
t.VerticalTextAlignment = data!.v;
|
|
break;
|
|
case 1:
|
|
t.TextAlignment = data!.h;
|
|
t.VerticalTextAlignment = Alignment.Fill;
|
|
break;
|
|
case 2:
|
|
t.TextAlignment = Alignment.Fill;
|
|
t.VerticalTextAlignment = Alignment.Fill;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private class TextAlignmentData (Alignment h, Alignment v)
|
|
{
|
|
public Alignment h { get; } = h;
|
|
public Alignment v { get; } = v;
|
|
}
|
|
}
|