private void SRLatchPaint()
{
Graphics g = this.CreateGraphics();
g.FillRectangle(Brushes.White, 0, 0, Width, Height);
int leftOffset = 120;
int topOffset = 100;
int spacing = 80;
int timingWidth = 4;
var fontFamily = new FontFamily("Arial");
var font = new Font(fontFamily, 20, FontStyle.Regular, GraphicsUnit.Pixel);
g.DrawString("S", font, Brushes.Black, 5, Height - 20 - (topOffset + spacing * 3));
g.DrawString("R", font, Brushes.Red, 5, Height - 20 - (topOffset + spacing * 2));
g.DrawString("Q", font, Brushes.Blue, 5, Height - 20 - (topOffset + spacing * 1));
g.DrawString("QBar", font, Brushes.Green, 5, Height - 20 - topOffset);
for (int i = 1; i < 200; i++)
{
// inputs
g.DrawLine(Pens.Black,
i * timingWidth + leftOffset,
Height - ((float)srLatch.S.Output(i - 1) * 5 + topOffset + spacing * 3),
i * timingWidth + timingWidth + leftOffset,
Height - ((float)srLatch.S.Output(i) * 5 + topOffset + spacing * 3));
g.DrawLine(Pens.Red,
i * timingWidth + leftOffset,
Height - ((float)srLatch.R.Output(i - 1) * 5 + topOffset + spacing * 2),
i * timingWidth + timingWidth + leftOffset,
Height - ((float)srLatch.R.Output(i) * 5 + topOffset + spacing * 2));
// outputs
g.DrawLine(Pens.Blue,
i * timingWidth + leftOffset,
Height - ((float)srLatch.Q(i - 1) * 5 + topOffset + spacing * 1),
i * timingWidth + timingWidth + leftOffset,
Height - ((float)srLatch.Q(i) * 5 + topOffset + spacing * 1));
g.DrawLine(Pens.Green,
i * timingWidth + leftOffset,
Height - ((float)srLatch.QBar(i - 1) * 5 + topOffset + spacing * 0),
i * timingWidth + timingWidth + leftOffset,
Height - ((float)srLatch.QBar(i) * 5 + topOffset + spacing * 0));
// grid
/*
* g.DrawLine(Pens.Gray,
* i*timingWidth + leftOffset,
* Height - 50 - (i%10 == 0 ? 30 : 0),
* i*timingWidth + leftOffset,
* Height);
*/
}
}
public void sr_latch_circuit_reset()
{
var srLatch = new SRLatch(TTLGateTypeEnum.Perfect);
srLatch.S.Add(0);
srLatch.R.Add(5);
srLatch.RunCircuit();
Assert.True(srLatch.CircuitCompletedSuccessfully);
Assert.Equal(5, srLatch.Q(0));
Assert.Equal(0, srLatch.QBar(0));
}
