idTech4.UI.idDeviceContext.DrawMaterial C# (CSharp) Method

		public void DrawMaterial(float x, float y, float width, float height, idMaterial material, Vector4 color, float scaleX = 1.0f, float scaleY = 1.0f)
		{
			idE.RenderSystem.Color = color;

			float s0, s1, t0, t1;

			// 
			//  handle negative scales as well	
			if(scaleX < 0)
			{
				width *= -1;
				scaleX *= -1;
			}

			if(scaleY < 0)
			{
				height *= -1;
				scaleY *= -1;
			}

			// 
			if(width < 0)
			{
				// flip about vertical
				width = -width;
				s0 = 1 * scaleX;
				s1 = 0;
			}
			else
			{
				s0 = 0;
				s1 = 1 * scaleX;
			}

			if(height < 0)
			{
				// flip about horizontal
				height = -height;
				t0 = 1 * scaleY;
				t1 = 0;
			}
			else
			{
				t0 = 0;
				t1 = 1 * scaleY;
			}

			if(ClipCoordinates(ref x, ref y, ref width, ref height, ref s0, ref t0, ref s1, ref t1) == true)
			{
				return;
			}

			AdjustCoordinates(ref x, ref y, ref width, ref height);
			DrawStretchPicture(x, y, width, height, s0, t0, s1, t1, material);
		}

        private void DrawBackground(idRectangle drawRect)
        {
            if (_backColor.W > 0)
            {
                _context.DrawFilledRectangle(_drawRect.X, _drawRect.Y, _drawRect.Width, _drawRect.Height, _backColor);
            }

            if (_background != null)
            {
                if (_materialColor.W > 0)
                {
                    float scaleX, scaleY;

                    if ((_flags & WindowFlags.NaturalMaterial) == WindowFlags.NaturalMaterial)
                    {
                        scaleX = _drawRect.Width / _background.ImageWidth;
                        scaleY = _drawRect.Height / _background.ImageHeight;
                    }
                    else
                    {
                        scaleX = _materialScaleX;
                        scaleY = _materialScaleY;
                    }

                    _context.DrawMaterial(_drawRect.X, _drawRect.Y, _drawRect.Width, _drawRect.Height, _background, _materialColor, scaleX, scaleY);
                }
            }
        }