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Code Issues Projects Releases Packages Wiki Activity Actions 2

code_style: move some code from Histories.axaml to separate files

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Signed-off-by: leo <longshuang@msn.cn>
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leo 2025-03-12 14:58:59 +08:00
parent bb2284c4c9
commit 0476a825ef
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6 changed files with 705 additions and 672 deletions
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228
src/Views/CommitGraph.cs Normal file
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@ -0,0 +1,228 @@
using Avalonia;
using Avalonia.Controls;
using Avalonia.Media;
using Avalonia.VisualTree;
namespace SourceGit.Views
{
public class CommitGraph : Control
{
public static readonly StyledProperty<Models.CommitGraph> GraphProperty =
AvaloniaProperty.Register<CommitGraph, Models.CommitGraph>(nameof(Graph));
public Models.CommitGraph Graph
{
get => GetValue(GraphProperty);
set => SetValue(GraphProperty, value);
}
public static readonly StyledProperty<IBrush> DotBrushProperty =
AvaloniaProperty.Register<CommitGraph, IBrush>(nameof(DotBrush), Brushes.Transparent);
public IBrush DotBrush
{
get => GetValue(DotBrushProperty);
set => SetValue(DotBrushProperty, value);
}
public static readonly StyledProperty<bool> OnlyHighlightCurrentBranchProperty =
AvaloniaProperty.Register<CommitGraph, bool>(nameof(OnlyHighlightCurrentBranch), true);
public bool OnlyHighlightCurrentBranch
{
get => GetValue(OnlyHighlightCurrentBranchProperty);
set => SetValue(OnlyHighlightCurrentBranchProperty, value);
}
static CommitGraph()
{
AffectsRender<CommitGraph>(GraphProperty, DotBrushProperty, OnlyHighlightCurrentBranchProperty);
}
public override void Render(DrawingContext context)
{
base.Render(context);
var graph = Graph;
if (graph == null)
return;
var histories = this.FindAncestorOfType<Histories>();
if (histories == null)
return;
var list = histories.CommitListContainer;
if (list == null)
return;
// Calculate drawing area.
double width = Bounds.Width - 273 - histories.AuthorNameColumnWidth.Value;
double height = Bounds.Height;
double startY = list.Scroll?.Offset.Y ?? 0;
double endY = startY + height + 28;
// Apply scroll offset and clip.
using (context.PushClip(new Rect(0, 0, width, height)))
using (context.PushTransform(Matrix.CreateTranslation(0, -startY)))
{
// Draw contents
DrawCurves(context, graph, startY, endY);
DrawAnchors(context, graph, startY, endY);
}
}
private void DrawCurves(DrawingContext context, Models.CommitGraph graph, double top, double bottom)
{
var grayedPen = new Pen(new SolidColorBrush(Colors.Gray, 0.4), Models.CommitGraph.Pens[0].Thickness);
var onlyHighlightCurrentBranch = OnlyHighlightCurrentBranch;
if (onlyHighlightCurrentBranch)
{
foreach (var link in graph.Links)
{
if (link.IsMerged)
continue;
if (link.End.Y < top)
continue;
if (link.Start.Y > bottom)
break;
var geo = new StreamGeometry();
using (var ctx = geo.Open())
{
ctx.BeginFigure(link.Start, false);
ctx.QuadraticBezierTo(link.Control, link.End);
}
context.DrawGeometry(null, grayedPen, geo);
}
}
foreach (var line in graph.Paths)
{
var last = line.Points[0];
var size = line.Points.Count;
if (line.Points[size - 1].Y < top)
continue;
if (last.Y > bottom)
break;
var geo = new StreamGeometry();
var pen = Models.CommitGraph.Pens[line.Color];
using (var ctx = geo.Open())
{
var started = false;
var ended = false;
for (int i = 1; i < size; i++)
{
var cur = line.Points[i];
if (cur.Y < top)
{
last = cur;
continue;
}
if (!started)
{
ctx.BeginFigure(last, false);
started = true;
}
if (cur.Y > bottom)
{
cur = new Point(cur.X, bottom);
ended = true;
}
if (cur.X > last.X)
{
ctx.QuadraticBezierTo(new Point(cur.X, last.Y), cur);
}
else if (cur.X < last.X)
{
if (i < size - 1)
{
var midY = (last.Y + cur.Y) / 2;
ctx.CubicBezierTo(new Point(last.X, midY + 4), new Point(cur.X, midY - 4), cur);
}
else
{
ctx.QuadraticBezierTo(new Point(last.X, cur.Y), cur);
}
}
else
{
ctx.LineTo(cur);
}
if (ended)
break;
last = cur;
}
}
if (!line.IsMerged && onlyHighlightCurrentBranch)
context.DrawGeometry(null, grayedPen, geo);
else
context.DrawGeometry(null, pen, geo);
}
foreach (var link in graph.Links)
{
if (onlyHighlightCurrentBranch && !link.IsMerged)
continue;
if (link.End.Y < top)
continue;
if (link.Start.Y > bottom)
break;
var geo = new StreamGeometry();
using (var ctx = geo.Open())
{
ctx.BeginFigure(link.Start, false);
ctx.QuadraticBezierTo(link.Control, link.End);
}
context.DrawGeometry(null, Models.CommitGraph.Pens[link.Color], geo);
}
}
private void DrawAnchors(DrawingContext context, Models.CommitGraph graph, double top, double bottom)
{
var dotFill = DotBrush;
var dotFillPen = new Pen(dotFill, 2);
var grayedPen = new Pen(Brushes.Gray, Models.CommitGraph.Pens[0].Thickness);
var onlyHighlightCurrentBranch = OnlyHighlightCurrentBranch;
foreach (var dot in graph.Dots)
{
if (dot.Center.Y < top)
continue;
if (dot.Center.Y > bottom)
break;
var pen = Models.CommitGraph.Pens[dot.Color];
if (!dot.IsMerged && onlyHighlightCurrentBranch)
pen = grayedPen;
switch (dot.Type)
{
case Models.CommitGraph.DotType.Head:
context.DrawEllipse(dotFill, pen, dot.Center, 6, 6);
context.DrawEllipse(pen.Brush, null, dot.Center, 3, 3);
break;
case Models.CommitGraph.DotType.Merge:
context.DrawEllipse(pen.Brush, null, dot.Center, 6, 6);
context.DrawLine(dotFillPen, new Point(dot.Center.X, dot.Center.Y - 3), new Point(dot.Center.X, dot.Center.Y + 3));
context.DrawLine(dotFillPen, new Point(dot.Center.X - 3, dot.Center.Y), new Point(dot.Center.X + 3, dot.Center.Y));
break;
default:
context.DrawEllipse(dotFill, pen, dot.Center, 3, 3);
break;
}
}
}
}
}