cool tekst editor
This commit is contained in:
Qrakhen
parent
87ea8f4771
commit
30157f1f5d
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@ -0,0 +1,7 @@
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using Qrakhen.Qamp.Editor.Primitives;
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namespace Qrakhen.Qamp.Editor.Commands;
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public readonly record struct MoveCaretOptions(BufferPosition Position,
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bool Relative = true,
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bool Jump = false);
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@ -12,7 +12,10 @@ public class Caret : Adorner
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private readonly Brush _brush;
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private bool _blink;
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private Point _cursorPosition;
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private DispatcherTimer _timer;
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private Point _targetPosition;
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private (Point from, Point to)[] _lines = [];
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private DispatcherTimer _blinkTimer;
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private DispatcherTimer _moveTimer;
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public Caret(UIElement adornedElement, Brush brush, double height = 18, double thickness = 1.72) : base(adornedElement)
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{
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@ -20,13 +23,28 @@ public class Caret : Adorner
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_height = height;
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_brush = brush;
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_pen = new Pen(brush, 1.5);
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_timer = new DispatcherTimer();
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_timer.Interval = TimeSpan.FromMilliseconds(428);
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_timer.Tick += new EventHandler((s, e) => {
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_pen = new Pen(brush, 1.92);
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_blinkTimer = new DispatcherTimer();
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_blinkTimer.Interval = TimeSpan.FromMilliseconds(428);
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_blinkTimer.Tick += new EventHandler((s, e) => {
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Toggle(_blink = !_blink);
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});
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_timer.Start();
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_blinkTimer.Start();
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_moveTimer = new DispatcherTimer();
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_moveTimer.Interval = TimeSpan.FromMilliseconds(12);
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_moveTimer.Tick += new EventHandler((s, e) => {
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var delta = _targetPosition - _cursorPosition;
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if (delta.Length > 2.4)
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_cursorPosition += delta * .84;
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else {
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_cursorPosition = _targetPosition;
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_moveTimer.Stop();
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_blinkTimer.Start();
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}
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InvalidateVisual();
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});
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}
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public void Toggle(bool hide)
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@ -34,13 +52,19 @@ public class Caret : Adorner
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_pen.Brush = hide ? Brushes.Transparent : _brush;
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}
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public void UpdateSelection((Point from, Point to)[] lines)
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{
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_lines = lines;
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InvalidateVisual();
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}
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public void UpdatePosition(Point newPosition)
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{
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_timer.Stop();
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_cursorPosition = _targetPosition = newPosition;
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Toggle(_blink = false);
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_cursorPosition = newPosition;
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//_blinkTimer.Stop();
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//_moveTimer.Start();
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InvalidateVisual();
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_timer.Start();
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}
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protected override void OnRender(DrawingContext drawingContext)
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@ -12,6 +12,7 @@
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<UserControl.Style>
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<Style TargetType="{x:Type local:EditorFrame}">
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<Setter Property="CursorPosition" Value="{Binding CursorPosition}" />
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<Setter Property="CurrentSelection" Value="{Binding CurrentSelection}" />
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<Setter Property="CurrentLineBuffer" Value="{Binding CurrentLineBuffer}" />
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</Style>
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</UserControl.Style>
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@ -1,4 +1,6 @@
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using Qrakhen.Qamp.Editor.Primitives;
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using Qrakhen.Qamp.Editor.Commands;
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using Qrakhen.Qamp.Editor.Input;
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using Qrakhen.Qamp.Editor.Primitives;
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using Qrakhen.Qamp.Editor.ViewModel;
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using Qrakhen.Qamp.Memory;
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using System.Windows;
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@ -6,6 +8,7 @@ using System.Windows.Controls;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Shapes;
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namespace Qrakhen.Qamp.Editor.Controls;
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@ -18,6 +21,20 @@ public partial class EditorFrame : UserControl
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InitializeComponent();
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Loaded += OnLoaded;
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PreviewKeyDown += OnKeyDown;
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PreviewMouseDown += OnMouseDown;
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}
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protected void OnMouseDown(object sender, MouseButtonEventArgs e)
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{
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if (e.LeftButton == MouseButtonState.Pressed) {
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if (DataContext is EditorFrameViewModel vm) {
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vm.MoveCaretCommand.Execute(
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new MoveCaretOptions(
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CalculateCursorPosition(e.GetPosition(this), 0, 0),
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false,
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false));
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}
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}
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}
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private void OnKeyDown(object sender, KeyEventArgs e)
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@ -30,8 +47,12 @@ public partial class EditorFrame : UserControl
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Key.Down => new(1, 0),
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_ => new(0, 0)
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};
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if (position != BufferPosition.Void)
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vm.MoveCaretCommand.Execute(position);
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if (position != BufferPosition.Initial)
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vm.MoveCaretCommand.Execute(
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new MoveCaretOptions(
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position,
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true,
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InputService.CtrlHeld));
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else if (e.Key == Key.Back)
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vm.DeleteCommand.Execute(-1);
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else if (e.Key == Key.Delete)
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@ -41,8 +62,10 @@ public partial class EditorFrame : UserControl
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else if (e.Key == Key.Delete)
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vm.DeleteCommand.Execute(1);
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else {
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string c = e.Key.ToString();
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if (c.Length == 1)
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char c = KeyHelper.Get(e.Key,
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InputService.ShiftHeld ? 1 :
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(InputService.CtrlHeld && InputService.AltHeld) ? 2 : 0);
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if (c != 0)
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vm.InsertCommand.Execute(c);
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}
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@ -63,6 +86,12 @@ public partial class EditorFrame : UserControl
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Loaded -= OnLoaded;
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}
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private BufferPosition CalculateCursorPosition(Point point, double scrollY, double scrollX)
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{
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var ft = TextHelper.GetText(new string('_', 1), 14, null, VisualTreeHelper.GetDpi(this).PixelsPerDip);
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return new BufferPosition((int)(point.Y / TextHelper.LineHeight), (int)(point.X / ft.Width));
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}
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private Point CalculateCaretPosition(int line, int index, double scrollY, double scrollX)
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{
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var ft = TextHelper.GetText(new string('_', index), 14, null, VisualTreeHelper.GetDpi(this).PixelsPerDip);
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@ -74,6 +103,11 @@ public partial class EditorFrame : UserControl
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Caret?.UpdatePosition(point);
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}
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private void SelectRegion((Point from, Point to)[] lines)
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{
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Caret?.UpdateSelection(lines);
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}
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private void UpdateCaret()
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{
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int line = CursorPosition.Line;
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@ -88,6 +122,10 @@ public partial class EditorFrame : UserControl
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charIndex,
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scrollY,
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scrollX));
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if (!CurrentSelection.IsVoid) {
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}
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}
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public LineBuffer CurrentLineBuffer {
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@ -112,11 +150,29 @@ public partial class EditorFrame : UserControl
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nameof(CursorPosition),
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typeof(BufferPosition),
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typeof(EditorFrame),
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new PropertyMetadata(BufferPosition.Void, OnCursorPositionChanged));
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new PropertyMetadata(BufferPosition.Initial, OnCursorPositionChanged));
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private static void OnCursorPositionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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var frame = (EditorFrame)d;
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frame.UpdateCaret();
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}
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public BufferRegion CurrentSelection {
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get => (BufferRegion)GetValue(CurrentSelectionProperty);
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set => SetValue(CurrentSelectionProperty, value);
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}
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public static readonly DependencyProperty CurrentSelectionProperty =
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DependencyProperty.Register(
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nameof(CurrentSelection),
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typeof(BufferRegion),
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typeof(EditorFrame),
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new PropertyMetadata(BufferRegion.Void, OnCurrentSelectionChanged));
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private static void OnCurrentSelectionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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var frame = (EditorFrame)d;
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frame.UpdateCaret();
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}
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}
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@ -7,6 +7,5 @@
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mc:Ignorable="d"
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d:DesignHeight="18" d:DesignWidth="420">
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<Grid>
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</Grid>
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</UserControl>
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@ -9,34 +9,23 @@ using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Navigation;
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using System.Windows.Shapes;
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namespace Qrakhen.Qamp.Editor.Controls;
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public partial class LineRenderer : UserControl
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{
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public static readonly DependencyProperty LineBufferProperty =
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DependencyProperty.Register(
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nameof(LineBuffer),
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typeof(LineBuffer),
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typeof(LineRenderer),
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new FrameworkPropertyMetadata(null, OnLineBufferChanged));
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public LineBuffer LineBuffer {
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get => (LineBuffer)GetValue(LineBufferProperty);
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set => SetValue(LineBufferProperty, value);
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}
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private readonly Typeface _typeface = new(new FontFamily("Consolas"), FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
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private const double FontSize = 14;
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private const double LineHeight = 18;
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public Pen Pen { get; set; }
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public Brush Highlighter { get; set; }
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public LineRenderer()
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{
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Height = LineHeight;
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SnapsToDevicePixels = true;
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Highlighter = new SolidColorBrush(Color.FromArgb(0xff, 0x24, 0x92, 0x72));
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Pen = new Pen(Highlighter, 2);
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}
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protected override void OnRender(DrawingContext drawingContext)
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VisualTreeHelper.GetDpi(this).PixelsPerDip
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);
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var x = Random.Shared.Next(0, LineBuffer.Tail);
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var s = new BufferSpan(x, Random.Shared.Next(x, LineBuffer.Tail));
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Selection = s;
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var highlighter = TextHelper.GetText(
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new string(' ', Selection.Start) + new string('█', Selection.End - Selection.Start),
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FontSize,
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Highlighter,
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VisualTreeHelper.GetDpi(this).PixelsPerDip
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);
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drawingContext.DrawText(highlighter, new Point(2, 0));
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drawingContext.DrawText(formattedText, new Point(2, 0));
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}
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public static readonly DependencyProperty LineBufferProperty =
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DependencyProperty.Register(
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nameof(LineBuffer),
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typeof(LineBuffer),
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typeof(LineRenderer),
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new FrameworkPropertyMetadata(null, OnLineBufferChanged));
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public LineBuffer LineBuffer {
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get => (LineBuffer)GetValue(LineBufferProperty);
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set => SetValue(LineBufferProperty, value);
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}
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private static void OnLineBufferChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is LineRenderer renderer) {
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@ -76,4 +89,34 @@ public partial class LineRenderer : UserControl
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if (e.PropertyName == nameof(LineBuffer.Cached))
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InvalidateVisual();
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}
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public static readonly DependencyProperty SelectionProperty =
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DependencyProperty.Register(
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nameof(Selection),
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typeof(BufferSpan),
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typeof(LineRenderer),
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new FrameworkPropertyMetadata(BufferSpan.None, OnSelectionChanged));
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public BufferSpan Selection {
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get => (BufferSpan)GetValue(SelectionProperty);
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set => SetValue(SelectionProperty, value);
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}
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private static void OnSelectionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is LineRenderer renderer) {
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if (e.OldValue is LineBuffer oldBuffer && oldBuffer != null) {
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oldBuffer.PropertyChanged -= renderer.OnLineBufferPropertyChanged;
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}
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if (e.NewValue is LineBuffer newBuffer && newBuffer != null) {
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newBuffer.PropertyChanged += renderer.OnLineBufferPropertyChanged;
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}
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renderer.InvalidateVisual();
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}
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}
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}
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@ -1,9 +1,19 @@
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using System;
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using System.CodeDom.Compiler;
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using System.Collections.Generic;
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using System.Drawing.Drawing2D;
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using System.Runtime.ConstrainedExecution;
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using System.Security.Policy;
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using System.Text;
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using System.Windows.Controls;
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using System.Windows.Controls.Primitives;
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using System.Windows.Input;
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using System.Xml;
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using System.Xml.Linq;
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using static System.Net.Mime.MediaTypeNames;
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using static System.Runtime.InteropServices.JavaScript.JSType;
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namespace Qrakhen.Qamp.Editor.InputService;
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namespace Qrakhen.Qamp.Editor.Input;
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public interface IInputHandler
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{
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@ -34,7 +44,7 @@ public class InputService : IInputHandler
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public static bool LeftShiftHeld => Keyboard.IsKeyDown(Key.LeftShift);
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public static bool LeftAltHeld => Keyboard.IsKeyDown(Key.LeftAlt);
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public static bool RightCtrlHeld => Keyboard.IsKeyDown(Key.RightCtrl);
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public static bool RightShiftHeld => Keyboard.IsKeyDown(Key.LeftCtrl);
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public static bool RightShiftHeld => Keyboard.IsKeyDown(Key.RightShift);
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public static bool RightAltHeld => Keyboard.IsKeyDown(Key.RightAlt);
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public static bool CtrlHeld => LeftCtrlHeld || RightCtrlHeld;
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public static bool ShiftHeld => LeftShiftHeld || RightShiftHeld;
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@ -45,3 +55,211 @@ public class InputService : IInputHandler
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}
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}
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public static class KeyHelper
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{
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private static readonly Dictionary<Key, char[]> _chars = [];
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public static char Get(Key key, int modifier = 0)
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{
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return _chars[key][modifier];
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}
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static KeyHelper()
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{
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for (Key i = Key.A; i <= Key.Z; i++) {
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char c = i.ToString()[^1];
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Add(i, char.ToLower(c), char.ToUpper(c));
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}
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_chars[Key.Q] = ['q', 'Q', '@'];
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Add(Key.None);
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Add(Key.Cancel);
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Add(Key.Back);
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Add(Key.Tab, '\t');
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Add(Key.LineFeed);
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Add(Key.Clear);
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Add(Key.Enter, '\n');
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Add(Key.Return);
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Add(Key.Pause);
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Add(Key.Capital);
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Add(Key.CapsLock);
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Add(Key.HangulMode);
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Add(Key.KanaMode);
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Add(Key.JunjaMode);
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Add(Key.FinalMode);
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Add(Key.HanjaMode);
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Add(Key.KanjiMode);
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Add(Key.Escape);
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Add(Key.ImeConvert);
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Add(Key.ImeNonConvert);
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Add(Key.ImeAccept);
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Add(Key.ImeModeChange);
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Add(Key.Space, ' ');
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Add(Key.PageUp);
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Add(Key.Prior);
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Add(Key.Next);
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Add(Key.PageDown);
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Add(Key.End);
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Add(Key.Home);
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Add(Key.Left);
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Add(Key.Up);
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Add(Key.Right);
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Add(Key.Down);
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Add(Key.Select);
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Add(Key.Print);
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Add(Key.Execute);
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Add(Key.PrintScreen);
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Add(Key.Snapshot);
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Add(Key.Insert);
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Add(Key.Delete);
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Add(Key.Help);
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Add(Key.LWin);
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Add(Key.RWin);
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Add(Key.Apps);
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Add(Key.Sleep);
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Add(Key.D0, '0', '=', '}');
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Add(Key.D1, '1', '!');
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Add(Key.D2, '2', '"', '²');
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Add(Key.D3, '3', '§', '³');
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Add(Key.D4, '4', '$');
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Add(Key.D5, '5', '%');
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Add(Key.D6, '6', '&');
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Add(Key.D7, '7', '/', '{');
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Add(Key.D8, '8', '(', '[');
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Add(Key.D9, '9', ')', ']');
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Add(Key.NumPad0, '0');
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Add(Key.NumPad1, '1');
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Add(Key.NumPad2, '2');
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Add(Key.NumPad3, '3');
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Add(Key.NumPad4, '4');
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Add(Key.NumPad5, '5');
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Add(Key.NumPad6, '6');
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Add(Key.NumPad7, '7');
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Add(Key.NumPad8, '8');
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Add(Key.NumPad9, '9');
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Add(Key.Multiply, '*');
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Add(Key.Add, '+');
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Add(Key.Separator, '.');
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Add(Key.Subtract, '-');
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Add(Key.Decimal, ',');
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Add(Key.Divide, '/');
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Add(Key.F1);
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Add(Key.F2);
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Add(Key.F3);
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Add(Key.F4);
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Add(Key.F5);
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Add(Key.F6);
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Add(Key.F7);
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Add(Key.F8);
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Add(Key.F9);
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Add(Key.F10);
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Add(Key.F11);
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Add(Key.F12);
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Add(Key.F13);
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Add(Key.F14);
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Add(Key.F15);
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Add(Key.F16);
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Add(Key.F17);
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Add(Key.F18);
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Add(Key.F19);
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Add(Key.F20);
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Add(Key.F21);
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Add(Key.F22);
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Add(Key.F23);
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||||
Add(Key.F24);
|
||||
Add(Key.NumLock);
|
||||
Add(Key.Scroll);
|
||||
Add(Key.LeftShift);
|
||||
Add(Key.RightShift);
|
||||
Add(Key.LeftCtrl);
|
||||
Add(Key.RightCtrl);
|
||||
Add(Key.LeftAlt);
|
||||
Add(Key.RightAlt);
|
||||
Add(Key.BrowserBack);
|
||||
Add(Key.BrowserForward);
|
||||
Add(Key.BrowserRefresh);
|
||||
Add(Key.BrowserStop);
|
||||
Add(Key.BrowserSearch);
|
||||
Add(Key.BrowserFavorites);
|
||||
Add(Key.BrowserHome);
|
||||
Add(Key.VolumeMute);
|
||||
Add(Key.VolumeDown);
|
||||
Add(Key.VolumeUp);
|
||||
Add(Key.MediaNextTrack);
|
||||
Add(Key.MediaPreviousTrack);
|
||||
Add(Key.MediaStop);
|
||||
Add(Key.MediaPlayPause);
|
||||
Add(Key.LaunchMail);
|
||||
Add(Key.SelectMedia);
|
||||
Add(Key.LaunchApplication1);
|
||||
Add(Key.LaunchApplication2);
|
||||
Add(Key.Oem1, 'ü', 'Ü');
|
||||
Add(Key.OemSemicolon, ',', ';');
|
||||
Add(Key.OemPlus, '+', '*', '~');
|
||||
Add(Key.OemComma, ',', ';');
|
||||
Add(Key.OemMinus, '-', '_');
|
||||
Add(Key.OemPeriod, '.', ':');
|
||||
Add(Key.Oem2);
|
||||
Add(Key.OemQuestion, '#', '\'');
|
||||
Add(Key.Oem3, 'ö', 'Ö');
|
||||
Add(Key.OemTilde);
|
||||
Add(Key.AbntC1);
|
||||
Add(Key.AbntC2);
|
||||
Add(Key.Oem4);
|
||||
Add(Key.OemOpenBrackets);
|
||||
Add(Key.Oem5, '^', '°');
|
||||
Add(Key.OemPipe);
|
||||
Add(Key.Oem6, '´', '`');
|
||||
Add(Key.OemCloseBrackets);
|
||||
Add(Key.Oem7, 'ß', '?');
|
||||
Add(Key.OemQuotes, 'ä', 'Ä');
|
||||
Add(Key.Oem8);
|
||||
Add(Key.Oem102);
|
||||
Add(Key.OemBackslash, '<', '>', '|');
|
||||
Add(Key.ImeProcessed);
|
||||
Add(Key.System);
|
||||
Add(Key.DbeAlphanumeric);
|
||||
Add(Key.OemAttn);
|
||||
Add(Key.DbeKatakana);
|
||||
Add(Key.OemFinish);
|
||||
Add(Key.DbeHiragana);
|
||||
Add(Key.OemCopy);
|
||||
Add(Key.DbeSbcsChar);
|
||||
Add(Key.OemAuto);
|
||||
Add(Key.DbeDbcsChar);
|
||||
Add(Key.OemEnlw);
|
||||
Add(Key.DbeRoman);
|
||||
Add(Key.OemBackTab);
|
||||
Add(Key.Attn);
|
||||
Add(Key.DbeNoRoman);
|
||||
Add(Key.CrSel);
|
||||
Add(Key.DbeEnterWordRegisterMode);
|
||||
Add(Key.DbeEnterImeConfigureMode);
|
||||
Add(Key.ExSel);
|
||||
Add(Key.DbeFlushString);
|
||||
Add(Key.EraseEof);
|
||||
Add(Key.DbeCodeInput);
|
||||
Add(Key.Play);
|
||||
Add(Key.DbeNoCodeInput);
|
||||
Add(Key.Zoom);
|
||||
Add(Key.DbeDetermineString);
|
||||
Add(Key.NoName);
|
||||
Add(Key.DbeEnterDialogConversionMode);
|
||||
Add(Key.Pa1);
|
||||
Add(Key.OemClear);
|
||||
Add(Key.DeadCharProcessed);
|
||||
|
||||
}
|
||||
|
||||
private static void Add(Key key, params char[] chars)
|
||||
{
|
||||
char[] padded = new char[3];
|
||||
for (int i = 0; i < chars.Length; i++)
|
||||
padded[i] = chars[i];
|
||||
if (_chars.ContainsKey(key) && _chars[key][0] > 0)
|
||||
return;
|
||||
_chars[key] = padded;
|
||||
}
|
||||
}
|
||||
|
|
@ -2,7 +2,9 @@
|
|||
|
||||
public readonly record struct BufferPosition(int Line = 0, int Column = 0)
|
||||
{
|
||||
public static readonly BufferPosition Void = new(0, 0);
|
||||
public bool IsInitial => Line == 0 && Column == 0;
|
||||
|
||||
public static readonly BufferPosition Initial = new(0, 0);
|
||||
public static readonly BufferPosition Left = new(0, -1);
|
||||
public static readonly BufferPosition Right = new(0, 1);
|
||||
public static readonly BufferPosition Up = new(-1, 0);
|
||||
|
|
|
|||
|
|
@ -2,6 +2,10 @@
|
|||
|
||||
public struct BufferRegion(BufferPosition from, BufferPosition to)
|
||||
{
|
||||
public static readonly BufferRegion Void = new BufferRegion(default, default);
|
||||
|
||||
public bool IsVoid => (From - To).IsInitial;
|
||||
|
||||
public BufferPosition From = from;
|
||||
public BufferPosition To = to;
|
||||
}
|
||||
|
|
@ -1,7 +1,9 @@
|
|||
using Qrakhen.Qamp.Editor.Commands;
|
||||
using Qrakhen.Qamp.Editor.Primitives;
|
||||
using Qrakhen.Qamp.Memory;
|
||||
using System;
|
||||
using System.Collections.ObjectModel;
|
||||
using System.Windows.Documents;
|
||||
using System.Windows.Input;
|
||||
|
||||
namespace Qrakhen.Qamp.Editor.ViewModel;
|
||||
|
|
@ -14,6 +16,12 @@ public class EditorFrameViewModel : ObservableObject
|
|||
set => SetProperty(ref _cursorPosition, value);
|
||||
}
|
||||
|
||||
private BufferRegion _currentSelection;
|
||||
public BufferRegion CurrentSelection {
|
||||
get => _currentSelection;
|
||||
set => SetProperty(ref _currentSelection, value);
|
||||
}
|
||||
|
||||
public int CursorLine => _cursorPosition.Line;
|
||||
|
||||
public int CursorColumn => _cursorPosition.Column;
|
||||
|
|
@ -42,21 +50,17 @@ public class EditorFrameViewModel : ObservableObject
|
|||
ClipBoardCommand = new RelayCommand(() => { });
|
||||
}
|
||||
|
||||
private BufferPosition AlignBufferPosition(BufferPosition position)
|
||||
{
|
||||
int line = Math.Max(0, Math.Min(position.Line, Lines.Count - 1));
|
||||
LineBuffer buffer = Lines[line];
|
||||
int column = Math.Max(0, Math.Min(position.Column, buffer.Tail));
|
||||
return new BufferPosition(line, column);
|
||||
}
|
||||
|
||||
|
||||
public void SetCursor(int line, int column) => SetCursor(new BufferPosition(line, column));
|
||||
public void SetCursor(BufferPosition position)
|
||||
{
|
||||
CursorPosition = AlignBufferPosition(position);
|
||||
OnPropertyChanged(nameof(CurrentLineBuffer));
|
||||
}
|
||||
|
||||
public void MoveCursor(BufferPosition relative)
|
||||
public void MoveCursor(int lines, int columns) => MoveCursor(new BufferPosition(lines, columns));
|
||||
public void MoveCursor(BufferPosition relative, bool jump = false)
|
||||
{
|
||||
SetCursor(CursorPosition + relative);
|
||||
OnPropertyChanged(nameof(CurrentLineBuffer));
|
||||
|
|
@ -66,39 +70,89 @@ public class EditorFrameViewModel : ObservableObject
|
|||
{
|
||||
if (follow)
|
||||
SetCursor(new BufferPosition(region.From.Line, region.From.Column));
|
||||
for (int line = region.From.Line; line < region.To.Line; line++)
|
||||
{
|
||||
for (int line = region.From.Line; line < region.To.Line; line++) {
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
public void Delete(int count = 1, bool follow = true)
|
||||
{
|
||||
if (follow)
|
||||
MoveCursor(new BufferPosition(0, -count));
|
||||
if (count < 1)
|
||||
return;
|
||||
|
||||
if (follow) {
|
||||
// remove newline
|
||||
if (CursorColumn - count < 0 && CursorLine > 0) {
|
||||
int position = Lines[CursorLine - 1].Tail;
|
||||
Lines[CursorLine - 1].Insert(
|
||||
position,
|
||||
CurrentLineBuffer.Slice(0));
|
||||
Lines.RemoveAt(CursorLine);
|
||||
SetCursor(CursorLine - 1, position);
|
||||
return;
|
||||
} else
|
||||
MoveCursor(0, -count);
|
||||
} else {
|
||||
if (CursorColumn + count >= CurrentLineBuffer.Tail &&
|
||||
CursorLine < Lines.Count - 1) {
|
||||
CurrentLineBuffer.Insert(
|
||||
CurrentLineBuffer.Tail,
|
||||
Lines[CursorLine + 1].Slice(0));
|
||||
Lines.RemoveAt(CursorLine + 1);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
CurrentLineBuffer.Delete(CursorColumn, count);
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
asdasdy
|
||||
klöklöklökl
|
||||
köäläälööx
|
||||
cyxc
|
||||
|
||||
asdasd
|
||||
|
||||
* */
|
||||
|
||||
public void Insert(string data, bool follow = true)
|
||||
{
|
||||
CurrentLineBuffer.Insert(CursorColumn, data);
|
||||
|
||||
int newLine = data.IndexOf(Environment.NewLine);
|
||||
if (newLine > -1) {
|
||||
int position = CursorColumn - (data.Length - newLine + 1);
|
||||
LineBuffer split = new LineBuffer(CurrentLineBuffer.Slice(position), CurrentLineBuffer.Encoding);
|
||||
Lines.Insert(CursorLine, split);
|
||||
SetCursor(new BufferPosition(CursorLine + 1, split.Tail));
|
||||
} else {
|
||||
data = data.Replace("\t", " ");
|
||||
var lines = data.Split(Environment.NewLine, StringSplitOptions.None);
|
||||
for (int i = 0; i < lines.Length; i++) {
|
||||
if (i > 0) {
|
||||
LineBuffer split = new LineBuffer(
|
||||
CurrentLineBuffer.Slice(CursorColumn),
|
||||
CurrentLineBuffer.Encoding);
|
||||
Lines.Insert(CursorLine + 1, split);
|
||||
SetCursor(new BufferPosition(CursorLine + 1, 0));
|
||||
}
|
||||
CurrentLineBuffer.Insert(CursorColumn, lines[i]);
|
||||
if (follow)
|
||||
MoveCursor(new BufferPosition(0, data.Length));
|
||||
MoveCursor(new BufferPosition(0, lines[i].Length));
|
||||
}
|
||||
}
|
||||
|
||||
private BufferPosition AlignBufferPosition(BufferPosition position)
|
||||
{
|
||||
int line = Math.Max(0, Math.Min(position.Line, Lines.Count - 1));
|
||||
LineBuffer buffer = Lines[line];
|
||||
int column = Math.Max(0, Math.Min(position.Column, buffer.Tail));
|
||||
return new BufferPosition(line, column);
|
||||
}
|
||||
|
||||
#region Commands
|
||||
|
||||
private void ExecuteMoveCaret(object? parameter)
|
||||
{
|
||||
if (parameter is BufferPosition relative)
|
||||
MoveCursor(relative);
|
||||
if (parameter is MoveCaretOptions options) {
|
||||
if (options.Relative)
|
||||
MoveCursor(options.Position, options.Jump);
|
||||
else
|
||||
SetCursor(options.Position);
|
||||
}
|
||||
}
|
||||
|
||||
private void ExecuteMoveBlock(object? parameter)
|
||||
|
|
@ -111,6 +165,8 @@ public class EditorFrameViewModel : ObservableObject
|
|||
{
|
||||
if (parameter is string str)
|
||||
Insert(str, true);
|
||||
if (parameter is char c)
|
||||
Insert(c + "", true);
|
||||
}
|
||||
|
||||
private void ExecuteDelete(object? parameter)
|
||||
|
|
@ -120,4 +176,6 @@ public class EditorFrameViewModel : ObservableObject
|
|||
if (parameter is BufferRegion region)
|
||||
Delete(region);
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,7 +3,33 @@ using System.Text;
|
|||
|
||||
namespace Qrakhen.Qamp.Memory;
|
||||
|
||||
public sealed class LineBuffer : TailBuffer<byte>, INotifyPropertyChanged
|
||||
public struct BufferSpan
|
||||
{
|
||||
public static readonly BufferSpan None = new(0, 0);
|
||||
|
||||
public int Start { get; set; } = 0;
|
||||
public int End { get; set; } = 0;
|
||||
|
||||
public bool HasSelection => Start - End != 0;
|
||||
|
||||
public BufferSpan(int start, int end)
|
||||
{
|
||||
Start = start;
|
||||
End = end;
|
||||
}
|
||||
|
||||
public BufferSpan Synchronized<T>(TailBuffer<T> source)
|
||||
{
|
||||
return new BufferSpan(Start, Math.Min(End, source.Tail));
|
||||
}
|
||||
|
||||
public T[] GetSelectedRegion<T>(TailBuffer<T> source)
|
||||
{
|
||||
return source.Data[Start..End];
|
||||
}
|
||||
}
|
||||
|
||||
public class LineBuffer : TailBuffer<byte>, INotifyPropertyChanged
|
||||
{
|
||||
public Encoding Encoding { get; }
|
||||
public string Cached { get; private set; } = "";
|
||||
|
|
@ -32,6 +58,14 @@ public sealed class LineBuffer : TailBuffer<byte>, INotifyPropertyChanged
|
|||
public void Insert(int cursor, string data)
|
||||
=> Insert(cursor, Encoding.GetBytes(data));
|
||||
|
||||
public string ToString(BufferSpan span)
|
||||
{
|
||||
var synced = span.Synchronized(this);
|
||||
if (!synced.HasSelection)
|
||||
return string.Empty;
|
||||
return Encoding.GetString(Data[synced.Start..synced.End]);
|
||||
}
|
||||
|
||||
public override string ToString()
|
||||
{
|
||||
if (Tail == 0 || Encoding == null)
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@ public abstract class TailBuffer<T> : ICloneable
|
|||
|
||||
public TailBuffer(T[] data)
|
||||
{
|
||||
_data = new T[data.Length * 2];
|
||||
_data = new T[Math.Max(0x10, data.Length * 2)];
|
||||
Array.Copy(data, 0, _data, 0, data.Length);
|
||||
SetTail(data.Length);
|
||||
}
|
||||
|
|
@ -54,20 +54,21 @@ public abstract class TailBuffer<T> : ICloneable
|
|||
}
|
||||
}
|
||||
|
||||
public T[] Slice(int position)
|
||||
public T[] Slice(int from = 0, int until = -1)
|
||||
{
|
||||
position = SeekTail(position);
|
||||
if (position == Tail)
|
||||
from = SeekTail(from);
|
||||
if (from == Tail)
|
||||
return [];
|
||||
T[] data = _data[position..Tail];
|
||||
Delete(position, Tail - position);
|
||||
until = until < 0 ? Tail : SeekTail(until);
|
||||
T[] data = _data[from..until];
|
||||
Delete(from, until - from);
|
||||
return data;
|
||||
}
|
||||
|
||||
public abstract object Clone();
|
||||
|
||||
// never write beyond tail (there might be invalid data)
|
||||
private int SeekTail(int cursor) => cursor > Tail ? Tail : cursor;
|
||||
private int SeekTail(int cursor) => Math.Max(0, Math.Min(cursor, Tail));
|
||||
|
||||
private void Prepare(int index, int count)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue