private void DrawTicks(ref GraphicsX gx, int minutes)
{
for (minutes = 0; minutes <= 60; minutes++)
{
int degree = -90 - minutes * 6;
double d = degree * Math.PI / 180.0;
int r = this.arcRect.Width / 2;
int x = this.arcRect.X + r;
int y = this.arcRect.Y + r;
int width = (int)Math.Round(r * Math.Cos(d));
int height = (int)Math.Round(r * Math.Sin(d));
int x1 = x + width;
int y1 = y + height;
if (minutes % 5 == 0)
{
r -= LONG_LINE_LENGTH;
}
else
{
r -= SHORT_LINE_LENGTH;
}
width = (int)Math.Round(r * Math.Cos(d));
height = (int)Math.Round(r * Math.Sin(d));
int x2 = x + width;
int y2 = y + height;
gx.DrawLine(linePenX, x1, y1, x2, y2);
}
}
internal RedarwHelper(Rectangle clientRectangle)
{
this.currentMinute = -1;
this.nextMinute = -1;
this.clientRectangle = clientRectangle;
this.arcRect = clientRectangle;
this.brushX = new SolidBrushX(Color.Red);
this.penX = new PenX(Color.Gray, BORDER_WIDTH);
this.linePenX = new PenX(Color.Black);
this.gx = new GraphicsX(arcRect.Width, arcRect.Height);
this.gxNextMinute = new GraphicsX(arcRect.Width, arcRect.Height);
this.arcRect.Width--;
this.arcRect.Height--;
this.arcRect.Inflate(-25, -25);
int delta = BORDER_WIDTH / 2;
boarderRect = new Rectangle(arcRect.Left + delta, arcRect.Top + delta, arcRect.Width - BORDER_WIDTH, arcRect.Height - BORDER_WIDTH);
this.boarderRect = this.arcRect;
this.currentMinuteRedrawRect = clientRectangle;
}
internal Rectangle prepareGx(int minutes)
{
Rectangle newRedrawRect;
if (this.currentMinute == minutes)
{
return(new Rectangle());
}
else if (this.nextMinute == minutes)
{
GraphicsX g = this.gx;
this.gx = this.gxNextMinute;
this.gxNextMinute = g;
newRedrawRect = this.nextMinuteRedrawRect;
}
else
{
newRedrawRect = this.prepareGxSync(ref this.gx, minutes);
}
Rectangle rect;
if (!this.timerEnabled)
{
rect = this.clientRectangle;
}
else
{
if (minutes > 0)
{
this.prepareNextGx(minutes - 1);
}
if (this.currentMinuteRedrawRect.IsEmpty)
{
rect = newRedrawRect;
}
else
{
rect = Rectangle.Union(newRedrawRect, this.currentMinuteRedrawRect);
}
}
this.currentMinute = minutes;
this.currentMinuteRedrawRect = newRedrawRect;
return(rect);
}
private Rectangle prepareGxSync(ref GraphicsX gx, int minutes)
{
gx.Clear(Color.White);
int degree = minutes * 6;
if (degree == 360)
{
gx.FillEllipse(this.brushX, arcRect);
}
else
{
gx.FillPie(this.brushX, arcRect, -90, -degree);
}
this.DrawTicks(ref gx, minutes);
gx.DrawEllipse(this.penX, this.boarderRect);
return(this.CalculateRedrawRect(minutes));
}
