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Commit 0476a82

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love-lingerlove-linger
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code_style: move some code from Histories.axaml to separate files
Signed-off-by: leo <[email protected]>
1 parent bb2284c commit 0476a82

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6 files changed

+704
-671
lines changed

6 files changed

+704
-671
lines changed

‎src/Views/CommitGraph.cs‎

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using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Media;
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using Avalonia.VisualTree;
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namespace SourceGit.Views
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{
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public class CommitGraph : Control
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{
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public static readonly StyledProperty<Models.CommitGraph> GraphProperty =
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AvaloniaProperty.Register<CommitGraph, Models.CommitGraph>(nameof(Graph));
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public Models.CommitGraph Graph
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{
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get => GetValue(GraphProperty);
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set => SetValue(GraphProperty, value);
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}
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public static readonly StyledProperty<IBrush> DotBrushProperty =
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AvaloniaProperty.Register<CommitGraph, IBrush>(nameof(DotBrush), Brushes.Transparent);
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public IBrush DotBrush
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{
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get => GetValue(DotBrushProperty);
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set => SetValue(DotBrushProperty, value);
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}
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public static readonly StyledProperty<bool> OnlyHighlightCurrentBranchProperty =
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AvaloniaProperty.Register<CommitGraph, bool>(nameof(OnlyHighlightCurrentBranch), true);
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public bool OnlyHighlightCurrentBranch
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{
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get => GetValue(OnlyHighlightCurrentBranchProperty);
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set => SetValue(OnlyHighlightCurrentBranchProperty, value);
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}
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static CommitGraph()
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{
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AffectsRender<CommitGraph>(GraphProperty, DotBrushProperty, OnlyHighlightCurrentBranchProperty);
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}
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public override void Render(DrawingContext context)
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{
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base.Render(context);
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var graph = Graph;
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if (graph == null)
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return;
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var histories = this.FindAncestorOfType<Histories>();
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if (histories == null)
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return;
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var list = histories.CommitListContainer;
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if (list == null)
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return;
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// Calculate drawing area.
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double width = Bounds.Width - 273 - histories.AuthorNameColumnWidth.Value;
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double height = Bounds.Height;
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double startY = list.Scroll?.Offset.Y ?? 0;
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double endY = startY + height + 28;
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// Apply scroll offset and clip.
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using (context.PushClip(new Rect(0, 0, width, height)))
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using (context.PushTransform(Matrix.CreateTranslation(0, -startY)))
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{
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// Draw contents
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DrawCurves(context, graph, startY, endY);
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DrawAnchors(context, graph, startY, endY);
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}
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}
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private void DrawCurves(DrawingContext context, Models.CommitGraph graph, double top, double bottom)
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{
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var grayedPen = new Pen(new SolidColorBrush(Colors.Gray, 0.4), Models.CommitGraph.Pens[0].Thickness);
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var onlyHighlightCurrentBranch = OnlyHighlightCurrentBranch;
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if (onlyHighlightCurrentBranch)
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{
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foreach (var link in graph.Links)
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{
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if (link.IsMerged)
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continue;
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if (link.End.Y < top)
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continue;
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if (link.Start.Y > bottom)
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break;
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var geo = new StreamGeometry();
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using (var ctx = geo.Open())
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{
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ctx.BeginFigure(link.Start, false);
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ctx.QuadraticBezierTo(link.Control, link.End);
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}
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context.DrawGeometry(null, grayedPen, geo);
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}
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}
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foreach (var line in graph.Paths)
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{
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var last = line.Points[0];
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var size = line.Points.Count;
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if (line.Points[size - 1].Y < top)
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continue;
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if (last.Y > bottom)
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break;
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var geo = new StreamGeometry();
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var pen = Models.CommitGraph.Pens[line.Color];
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using (var ctx = geo.Open())
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{
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var started = false;
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var ended = false;
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for (int i = 1; i < size; i++)
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{
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var cur = line.Points[i];
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if (cur.Y < top)
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{
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last = cur;
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continue;
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}
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if (!started)
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{
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ctx.BeginFigure(last, false);
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started = true;
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}
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if (cur.Y > bottom)
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{
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cur = new Point(cur.X, bottom);
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ended = true;
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}
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if (cur.X > last.X)
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{
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ctx.QuadraticBezierTo(new Point(cur.X, last.Y), cur);
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}
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else if (cur.X < last.X)
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{
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if (i < size - 1)
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{
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var midY = (last.Y + cur.Y) / 2;
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ctx.CubicBezierTo(new Point(last.X, midY + 4), new Point(cur.X, midY - 4), cur);
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}
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else
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{
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ctx.QuadraticBezierTo(new Point(last.X, cur.Y), cur);
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}
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}
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else
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{
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ctx.LineTo(cur);
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}
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if (ended)
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break;
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last = cur;
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}
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}
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if (!line.IsMerged && onlyHighlightCurrentBranch)
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context.DrawGeometry(null, grayedPen, geo);
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else
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context.DrawGeometry(null, pen, geo);
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}
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foreach (var link in graph.Links)
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{
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if (onlyHighlightCurrentBranch && !link.IsMerged)
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continue;
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if (link.End.Y < top)
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continue;
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if (link.Start.Y > bottom)
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break;
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var geo = new StreamGeometry();
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using (var ctx = geo.Open())
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{
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ctx.BeginFigure(link.Start, false);
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ctx.QuadraticBezierTo(link.Control, link.End);
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}
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context.DrawGeometry(null, Models.CommitGraph.Pens[link.Color], geo);
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}
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}
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private void DrawAnchors(DrawingContext context, Models.CommitGraph graph, double top, double bottom)
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{
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var dotFill = DotBrush;
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var dotFillPen = new Pen(dotFill, 2);
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var grayedPen = new Pen(Brushes.Gray, Models.CommitGraph.Pens[0].Thickness);
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var onlyHighlightCurrentBranch = OnlyHighlightCurrentBranch;
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foreach (var dot in graph.Dots)
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{
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if (dot.Center.Y < top)
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continue;
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if (dot.Center.Y > bottom)
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break;
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var pen = Models.CommitGraph.Pens[dot.Color];
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if (!dot.IsMerged && onlyHighlightCurrentBranch)
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pen = grayedPen;
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switch (dot.Type)
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{
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case Models.CommitGraph.DotType.Head:
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context.DrawEllipse(dotFill, pen, dot.Center, 6, 6);
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context.DrawEllipse(pen.Brush, null, dot.Center, 3, 3);
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break;
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case Models.CommitGraph.DotType.Merge:
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context.DrawEllipse(pen.Brush, null, dot.Center, 6, 6);
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context.DrawLine(dotFillPen, new Point(dot.Center.X, dot.Center.Y - 3), new Point(dot.Center.X, dot.Center.Y + 3));
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context.DrawLine(dotFillPen, new Point(dot.Center.X - 3, dot.Center.Y), new Point(dot.Center.X + 3, dot.Center.Y));
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break;
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default:
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context.DrawEllipse(dotFill, pen, dot.Center, 3, 3);
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break;
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}
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}
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}
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}
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}

‎src/Views/CommitStatusIndicator.cs‎

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using System;
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using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Media;
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namespace SourceGit.Views
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{
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public class CommitStatusIndicator : Control
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{
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public static readonly StyledProperty<Models.Branch> CurrentBranchProperty =
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AvaloniaProperty.Register<CommitStatusIndicator, Models.Branch>(nameof(CurrentBranch));
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public Models.Branch CurrentBranch
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{
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get => GetValue(CurrentBranchProperty);
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set => SetValue(CurrentBranchProperty, value);
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}
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public static readonly StyledProperty<IBrush> AheadBrushProperty =
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AvaloniaProperty.Register<CommitStatusIndicator, IBrush>(nameof(AheadBrush));
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public IBrush AheadBrush
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{
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get => GetValue(AheadBrushProperty);
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set => SetValue(AheadBrushProperty, value);
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}
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public static readonly StyledProperty<IBrush> BehindBrushProperty =
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AvaloniaProperty.Register<CommitStatusIndicator, IBrush>(nameof(BehindBrush));
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public IBrush BehindBrush
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{
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get => GetValue(BehindBrushProperty);
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set => SetValue(BehindBrushProperty, value);
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}
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enum Status
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{
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Normal,
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Ahead,
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Behind,
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}
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public override void Render(DrawingContext context)
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{
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if (_status == Status.Normal)
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return;
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context.DrawEllipse(_status == Status.Ahead ? AheadBrush : BehindBrush, null, new Rect(0, 0, 5, 5));
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}
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protected override Size MeasureOverride(Size availableSize)
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{
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if (DataContext is Models.Commit commit && CurrentBranch is not null)
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{
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var sha = commit.SHA;
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var track = CurrentBranch.TrackStatus;
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if (track.Ahead.Contains(sha))
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_status = Status.Ahead;
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else if (track.Behind.Contains(sha))
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_status = Status.Behind;
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else
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_status = Status.Normal;
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}
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else
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{
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_status = Status.Normal;
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}
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return _status == Status.Normal ? new Size(0, 0) : new Size(9, 5);
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}
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protected override void OnDataContextChanged(EventArgs e)
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{
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base.OnDataContextChanged(e);
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InvalidateMeasure();
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}
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protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
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{
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base.OnPropertyChanged(change);
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if (change.Property == CurrentBranchProperty)
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InvalidateMeasure();
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}
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private Status _status = Status.Normal;
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}
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}

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