internal static void ImageRotated(IntPtr texId, Vector2 center, Vector2 size, float angle, Vector2 uv, Vector2 uv1, ImDrawListPtr drawList)
{
var cosA = MathF.Cos(angle);
var sinA = MathF.Sin(angle);
drawList.AddImageQuad(
texId,
center + Util.Rotate(new Vector2(-size.X * 0.5f, -size.Y * 0.5f), cosA, sinA),
center + Util.Rotate(new Vector2(+size.X * 0.5f, -size.Y * 0.5f), cosA, sinA),
center + Util.Rotate(new Vector2(+size.X * 0.5f, +size.Y * 0.5f), cosA, sinA),
center + Util.Rotate(new Vector2(-size.X * 0.5f, +size.Y * 0.5f), cosA, sinA),
new Vector2(uv.X, uv.Y),
new Vector2(uv1.X, uv.Y),
new Vector2(uv1.X, uv1.Y),
new Vector2(uv.X, uv1.Y)
);
}
public static void ImageRotated(ImDrawListPtr d, IntPtr tex_id, Vector2 position, Vector2 size, float angle, uint col = UInt32.MaxValue)
{
float cos_a = (float)Math.Cos(angle);
float sin_a = (float)Math.Sin(angle);
Vector2[] pos =
{
position + ImRotate(new Vector2(-size.X * 0.5f, -size.Y * 0.5f), cos_a, sin_a),
position + ImRotate(new Vector2(+size.X * 0.5f, -size.Y * 0.5f), cos_a, sin_a),
position + ImRotate(new Vector2(+size.X * 0.5f, +size.Y * 0.5f), cos_a, sin_a),
position + ImRotate(new Vector2(-size.X * 0.5f, +size.Y * 0.5f), cos_a, sin_a)
};
Vector2[] uvs =
{
new Vector2(0.0f, 0.0f),
new Vector2(1.0f, 0.0f),
new Vector2(1.0f, 1.0f),
new Vector2(0.0f, 1.0f)
};
d.AddImageQuad(tex_id, pos[0], pos[1], pos[2], pos[3], uvs[0], uvs[1], uvs[2], uvs[3], col);
}