89 lines
2.4 KiB
C#
Executable File
89 lines
2.4 KiB
C#
Executable File
// UnityEngine.UI was moved to a package in 2019.2.0
|
|
// Unfortunately no way to test for this across all Unity versions yet
|
|
// You can set up the asmdef to reference the new package, but the package doesn't
|
|
// existing in Unity 2017 etc, and it throws an error due to missing reference
|
|
#define AVPRO_PACKAGE_UNITYUI
|
|
#if (UNITY_2019_2_OR_NEWER && AVPRO_PACKAGE_UNITYUI) || (!UNITY_2019_2_OR_NEWER)
|
|
|
|
using UnityEngine;
|
|
using UnityEngine.UI;
|
|
|
|
namespace RenderHeads.Media.AVProVideo.Demos.UI
|
|
{
|
|
/// Fill a rectangle region with horizontal segments along it
|
|
[ExecuteInEditMode]
|
|
public class HorizontalSegmentsPrimitive : Graphic
|
|
{
|
|
private float[] _segments = { 0f, 0f };
|
|
public float[] Segments { get { return _segments; } set { SetSegments(value); } }
|
|
|
|
private void SetSegments(float[] segments)
|
|
{
|
|
if (segments != null && segments.Length > 1)
|
|
{
|
|
_segments = segments;
|
|
}
|
|
else
|
|
{
|
|
_segments = new float[] { 0f, 0f };
|
|
}
|
|
|
|
// TODO: detect whether a change actually occured before setting to dirty
|
|
SetVerticesDirty();
|
|
}
|
|
|
|
protected override void OnPopulateMesh(VertexHelper vh)
|
|
{
|
|
Vector2 corner1 = Vector2.zero;
|
|
Vector2 corner2 = Vector2.zero;
|
|
|
|
corner1.x = 0f;
|
|
corner1.y = 0f;
|
|
corner2.x = 1f;
|
|
corner2.y = 1f;
|
|
|
|
corner1.x -= rectTransform.pivot.x;
|
|
corner1.y -= rectTransform.pivot.y;
|
|
corner2.x -= rectTransform.pivot.x;
|
|
corner2.y -= rectTransform.pivot.y;
|
|
|
|
corner1.x *= rectTransform.rect.width;
|
|
corner1.y *= rectTransform.rect.height;
|
|
corner2.x *= rectTransform.rect.width;
|
|
corner2.y *= rectTransform.rect.height;
|
|
|
|
vh.Clear();
|
|
|
|
int numQuads = _segments.Length / 2;
|
|
|
|
UIVertex vert = UIVertex.simpleVert;
|
|
int vi = 0;
|
|
for (int i = 0; i < numQuads; i++)
|
|
{
|
|
float x1 = _segments[i * 2 + 0] * (corner2.x - corner1.x) + corner1.x;
|
|
float x2 = _segments[i * 2 + 1] * (corner2.x - corner1.x) + corner1.x;
|
|
|
|
vert.position = new Vector2(x1, corner1.y);
|
|
vert.color = color;
|
|
vh.AddVert(vert);
|
|
|
|
vert.position = new Vector2(x1, corner2.y);
|
|
vert.color = color;
|
|
vh.AddVert(vert);
|
|
|
|
vert.position = new Vector2(x2, corner2.y);
|
|
vert.color = color;
|
|
vh.AddVert(vert);
|
|
|
|
vert.position = new Vector2(x2, corner1.y);
|
|
vert.color = color;
|
|
vh.AddVert(vert);
|
|
|
|
vh.AddTriangle(0 + vi, 1 + vi, 2 + vi);
|
|
vh.AddTriangle(2 + vi, 3 + vi, 0 + vi);
|
|
vi += 4;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif |