added data sources

SomeChartsUi/SomeChartsUi.csproj

@@ -17,7 +17,6 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <Folder Include="src\data" />
       <Folder Include="src\elements\charts" />
       <Folder Include="src\elements\ui" />
     </ItemGroup>

SomeChartsUi/src/data/IChartData.cs

@@ -0,0 +1,102 @@
+namespace SomeChartsUi.data; 
+
+public interface IChartManagedData<T> {
+	public void GetValues(int start, int count, int downsample, T[] dest);
+	public T GetValue(int i);
+	public int GetLength();
+	public int GetHashCode();
+}
+
+public interface IChartData<T> : IChartManagedData<T> where T : unmanaged {
+	public unsafe void GetValues(int start, int count, int downsample, T* dest);
+}
+
+public class ArrayChartManagedData<T> : IChartManagedData<T> {
+	public readonly T[] data;
+
+	public ArrayChartManagedData(T[] data) => this.data = data;
+
+	public void GetValues(int start, int count, int downsample, T[] dest) {
+		for (int i = 0; i < count; i++)
+			dest[i] = data[start + (i << downsample)];
+	}
+	public T GetValue(int i) => data[i];
+	public int GetLength() => data.Length;
+}
+
+public class ArrayChartData<T> : ArrayChartManagedData<T>, IChartData<T> where T : unmanaged {
+	public ArrayChartData(T[] data) : base(data) { }
+
+	public unsafe void GetValues(int start, int count, int downsample, T* dest) {
+		for (int i = 0; i < count; i++) dest[i] = data[start + (i << downsample)];
+	}
+}
+
+public class CollectionChartManagedData<T> : IChartManagedData<T>{
+	public readonly IEnumerable<T> data;
+
+	public CollectionChartManagedData(IEnumerable<T> data) => this.data = data;
+
+	public void GetValues(int start, int count, int downsample, T[] dest) {
+		for (int i = 0; i < count; i++) dest[i] = data.ElementAt(start + (i << downsample));
+	}
+	public T GetValue(int i) => data.ElementAt(i);
+	public int GetLength() => data.Count();
+}
+
+public class CollectionChartData<T> : CollectionChartManagedData<T>, IChartData<T> where T : unmanaged {
+	public CollectionChartData(IEnumerable<T> data) : base(data) { }
+	
+	public unsafe void GetValues(int start, int count, int downsample, T* dest) {
+		for (int i = 0; i < count; i++) dest[i] = data.ElementAt(start + (i << downsample));
+	}
+}
+
+public class FuncChartManagedData<T> : IChartManagedData<T> {
+	public readonly Func<int, T> sample;
+	public readonly int length;
+
+	public FuncChartManagedData(Func<int, T> sample, int length) {
+		this.sample = sample;
+		this.length = length;
+	}
+	
+	public void GetValues(int start, int count, int downsample, T[] dest) {
+		for (int i = 0; i < count; i++) dest[i] = sample(start + (i << downsample));
+	}
+	
+	public T GetValue(int i) => sample(i);
+	public int GetLength() => length;
+}
+
+public class FuncChartData<T> : FuncChartManagedData<T>, IChartData<T> where T : unmanaged {
+	public FuncChartData(Func<int, T> sample, int length) : base(sample, length) { }
+
+	public unsafe void GetValues(int start, int count, int downsample, T* dest) {
+		for (int i = 0; i < count; i++) dest[i] = sample(start + (i << downsample));
+	}
+}
+
+public class ConstChartManagedData<T> : IChartManagedData<T> {
+	public T value;
+	public int length;
+
+	public ConstChartManagedData(T value, int length = 1) {
+		this.value = value;
+		this.length = length;
+	}
+
+	public void GetValues(int start, int count, int downsample, T[] dest) {
+		for (int i = 0; i < count; i++) dest[i] = value;
+	}
+	public T GetValue(int i) => value;
+	public int GetLength() => length;
+}
+
+public class ConstChartData<T> : ConstChartManagedData<T>, IChartData<T> where T : unmanaged {
+	public ConstChartData(T value, int length = 1) : base(value, length) { }
+
+	public unsafe void GetValues(int start, int count, int downsample, T* dest) {
+		for (int i = 0; i < count; i++) dest[i] = value;
+	}
+}