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Code Issues Projects Releases Packages Wiki Activity Actions 2

optimize<CommitGraph>: rename CommitGraphHelper to CommitGraphData; improve checking visibility of lines/links/dots in commit graph

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This commit is contained in:
leo 2020-12-19 21:35:29 +08:00
parent 0e648833cc
commit 01ed685b59
2 changed files with 34 additions and 35 deletions
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67
src/Helpers/CommitGraph.cs
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@ -9,13 +9,12 @@ namespace SourceGit.Helpers {
/// <summary>
/// Tools to parse commit graph.
/// </summary>
public class CommitGraphMaker {
public class CommitGraphData {
/// <summary>
/// Sizes
/// Unit lengths for commit graph
/// </summary>
public static readonly double UNIT_WIDTH = 12;
public static readonly double HALF_WIDTH = 6;
public static readonly double DOUBLE_WIDTH = 24;
public static readonly double UNIT_HEIGHT = 24;
public static readonly double HALF_HEIGHT = 12;
@ -34,9 +33,9 @@ namespace SourceGit.Helpers {
};
/// <summary>
/// Helpers to draw lines.
/// Data to draw lines.
/// </summary>
public class LineHelper {
public class Line {
private double lastX = 0;
private double lastY = 0;
@ -72,7 +71,7 @@ namespace SourceGit.Helpers {
/// <param name="isMerged">Is merged in tree</param>
/// <param name="colorIdx">Color index</param>
/// <param name="startPoint">Start point</param>
public LineHelper(string nextCommitId, bool isMerged, int colorIdx, Point startPoint) {
public Line(string nextCommitId, bool isMerged, int colorIdx, Point startPoint) {
Next = nextCommitId;
IsMerged = isMerged;
Points = new List<Point>() { startPoint };
@ -128,7 +127,7 @@ namespace SourceGit.Helpers {
/// <summary>
/// Independent lines in graph
/// </summary>
public List<LineHelper> Lines { get; set; } = new List<LineHelper>();
public List<Line> Lines { get; set; } = new List<Line>();
/// <summary>
/// Short links.
@ -145,18 +144,18 @@ namespace SourceGit.Helpers {
/// </summary>
/// <param name="commits"></param>
/// <returns></returns>
public static CommitGraphMaker Parse(List<Git.Commit> commits) {
CommitGraphMaker maker = new CommitGraphMaker();
public static CommitGraphData Parse(List<Git.Commit> commits) {
CommitGraphData data = new CommitGraphData();
List<LineHelper> unsolved = new List<LineHelper>();
List<LineHelper> ended = new List<LineHelper>();
Dictionary<string, LineHelper> currentMap = new Dictionary<string, LineHelper>();
List<Line> unsolved = new List<Line>();
List<Line> ended = new List<Line>();
Dictionary<string, Line> currentMap = new Dictionary<string, Line>();
double offsetY = -HALF_HEIGHT;
int colorIdx = 0;
for (int i = 0; i < commits.Count; i++) {
Git.Commit commit = commits[i];
LineHelper major = null;
Line major = null;
bool isMerged = commit.IsHEAD || commit.IsMerged;
int oldCount = unsolved.Count;
@ -195,7 +194,7 @@ namespace SourceGit.Helpers {
// 处理本提交为非当前分支HEAD的情况（创建新依赖线路）
if (major == null && commit.Parents.Count > 0) {
offsetX += UNIT_WIDTH;
major = new LineHelper(commit.Parents[0], isMerged, colorIdx, new Point(offsetX, offsetY));
major = new Line(commit.Parents[0], isMerged, colorIdx, new Point(offsetX, offsetY));
unsolved.Add(major);
colorIdx++;
}
@ -206,9 +205,9 @@ namespace SourceGit.Helpers {
major.IsMerged = isMerged;
position.X = major.HorizontalOffset;
position.Y = offsetY;
maker.Dots.Add(new Dot() { Center = position, Color = major.Brush });
data.Dots.Add(new Dot() { Center = position, Color = major.Brush });
} else {
maker.Dots.Add(new Dot() { Center = position, Color = Brushes.Orange });
data.Dots.Add(new Dot() { Center = position, Color = Brushes.Orange });
}
// 处理本提交的其他依赖
@ -222,10 +221,10 @@ namespace SourceGit.Helpers {
link.End = new Point(l.HorizontalOffset, offsetY + HALF_HEIGHT);
link.Control = new Point(link.End.X, link.Start.Y);
link.Brush = l.Brush;
maker.Links.Add(link);
data.Links.Add(link);
} else {
offsetX += UNIT_WIDTH;
unsolved.Add(new LineHelper(commit.Parents[j], isMerged, colorIdx, position));
unsolved.Add(new Line(commit.Parents[j], isMerged, colorIdx, position));
colorIdx++;
}
}
@ -233,7 +232,7 @@ namespace SourceGit.Helpers {
// 处理已终止的线
foreach (var l in ended) {
l.AddPoint(position.X, position.Y, true);
maker.Lines.Add(l);
data.Lines.Add(l);
unsolved.Remove(l);
}
@ -254,12 +253,12 @@ namespace SourceGit.Helpers {
if (path.Points.Count == 1 && path.Points[0].Y == endY) continue;
path.AddPoint((i + 0.5) * UNIT_WIDTH, endY, true);
maker.Lines.Add(path);
data.Lines.Add(path);
}
unsolved.Clear();
maker.Lines.Sort((l, h) => l.Points[0].Y.CompareTo(h.Points[0].Y));
return maker;
data.Lines.Sort((l, h) => l.Points[0].Y.CompareTo(h.Points[0].Y));
return data;
}
}
@ -268,7 +267,7 @@ namespace SourceGit.Helpers {
/// </summary>
public class CommitGraph : FrameworkElement {
private double offsetY;
private CommitGraphMaker maker;
private CommitGraphData data;
public CommitGraph() {
Clear();
@ -276,21 +275,21 @@ namespace SourceGit.Helpers {
public void Clear() {
offsetY = 0;
maker = null;
data = null;
}
public void SetCommits(List<Git.Commit> commits) {
maker = CommitGraphMaker.Parse(commits);
data = CommitGraphData.Parse(commits);
Dispatcher.Invoke(() => InvalidateVisual());
}
public void SetOffset(double y) {
offsetY = y * CommitGraphMaker.UNIT_HEIGHT;
offsetY = y * CommitGraphData.UNIT_HEIGHT;
InvalidateVisual();
}
protected override void OnRender(DrawingContext dc) {
if (maker == null) return;
if (data == null) return;
var startY = offsetY;
var endY = offsetY + ActualHeight;
@ -298,12 +297,12 @@ namespace SourceGit.Helpers {
dc.PushTransform(new TranslateTransform(0, -offsetY));
// Draw all visible lines.
foreach (var path in maker.Lines) {
foreach (var path in data.Lines) {
var last = path.Points[0];
var size = path.Points.Count;
if (last.Y > endY) break;
if (path.Points[size - 1].Y < startY) continue;
if (last.Y > endY) break;
var geo = new StreamGeometry();
var pen = new Pen(path.Brush, 2);
@ -325,7 +324,7 @@ namespace SourceGit.Helpers {
geoCtx.QuadraticBezierTo(new Point(cur.X, last.Y), cur, true, false);
} else if (cur.X < last.X) {
if (i < size - 1) {
cur.Y += CommitGraphMaker.HALF_HEIGHT;
cur.Y += CommitGraphData.HALF_HEIGHT;
var midY = (last.Y + cur.Y) / 2;
var midX = (last.X + cur.X) / 2;
@ -351,9 +350,9 @@ namespace SourceGit.Helpers {
}
// Draw short links
foreach (var link in maker.Links) {
if (link.Start.Y > endY) break;
foreach (var link in data.Links) {
if (link.End.Y < startY) continue;
if (link.Start.Y > endY) break;
var geo = new StreamGeometry();
var pen = new Pen(link.Brush, 2);
@ -368,9 +367,9 @@ namespace SourceGit.Helpers {
}
// Draw visible points
foreach (var dot in maker.Dots) {
if (dot.Center.Y > endY) break;
foreach (var dot in data.Dots) {
if (dot.Center.Y < startY) continue;
if (dot.Center.Y > endY) break;
dc.DrawEllipse(dot.Color, null, dot.Center, 3, 3);
}

2
src/UI/Histories.xaml
View file

@ -53,7 +53,7 @@
<DataGrid
Grid.Row="1"
x:Name="commitList"
RowHeight="{x:Static helpers:CommitGraphMaker.UNIT_HEIGHT}"
RowHeight="{x:Static helpers:CommitGraphData.UNIT_HEIGHT}"
ScrollViewer.ScrollChanged="CommitListScrolled"
SelectionChanged="CommitSelectChanged"
SelectionUnit="FullRow">