private void DrawBattery(Graphics g, Rectangle rect)
{
g.ResetClip();
g.ResetTransform();
g.SetClip(rect);
Point center = new Point(0, 0);
int batteryTopHeight = rect.Height / 20;
int batteryHeight = rect.Height - batteryTopHeight - 1;
int batteryWidth = batteryHeight / 3;
int batteryTopWidth = batteryWidth / 3;
bool warning = BatteryLevel <= BatteryWarningLevel;
// draw fill/level
double batteryLevel = MathHelper.Clamp(BatteryLevel, 0.0, 1.0);
int fill = (int)(batteryHeight * Math.Max(0.05, batteryLevel));
g.FillRect(warning ? _brushWarning : _brush, center, 0.0, new Rectangle(0, batteryHeight - fill + batteryTopHeight, batteryWidth, fill));
// draw outline
g.DrawRect(_pen, center, 0.0, new Rectangle((batteryWidth - batteryTopWidth) / 2, 0, batteryTopWidth, batteryTopHeight));
g.DrawRect(_pen, center, 0.0, new Rectangle(0, batteryTopHeight, batteryWidth, batteryHeight));
// draw value
StringFormat stringFormat = new StringFormat
{
Alignment = StringAlignment.Near,
LineAlignment = StringAlignment.Far
};
g.DrawString((BatteryLevel * 100.0).ToString("000"), _font, warning ? _brushWarning : _brush, center, 0.0, new Point(batteryWidth + 5, rect.Height), stringFormat);
}
private void DrawBlade(Graphics g, Rectangle rect, double level)
{
g.ResetClip();
g.ResetTransform();
g.SetClip(rect);
Point center = new Point(rect.Width / 2, rect.Height / 2);
int barWidth = rect.Width / 5;
int barHeight = (int)(rect.Width * 0.7);
int radius = rect.Width / 2;
double barOffset = Math.Cos(Math.Asin((barHeight / 2.0) / radius)) * radius;
if (double.IsNaN(barOffset))
{
barOffset = 0;
}
// circle
g.DrawEllipse(_pen, center, 0.0, new Rectangle(0, 0, rect.Width - 1, rect.Height - 1));
// bar
int fill = barHeight - (int)(barHeight * level);
g.FillRect(_brush, center, 0.0, new Rectangle((int)(center.X - barOffset), (rect.Height - barHeight) / 2 + fill, barWidth, barHeight - fill));
g.DrawRect(_pen, center, 0.0, new Rectangle((int)(center.X - barOffset), (rect.Height - barHeight) / 2, barWidth, barHeight));
// text
StringFormat stringFormat = new StringFormat
{
LineAlignment = StringAlignment.Center
};
g.DrawString((level * 100).ToString("00"), _font, _brush, center, 0.0, new Point((int)(center.X - barOffset + barWidth + 5), center.Y), stringFormat);
}
private void DrawBackground(Graphics g)
{
g.ResetClip();
g.ResetTransform();
g.SetClip(_rect);
Point center = new Point(_rect.Width / 2, _rect.Height / 2);
double roll = Roll;
double scale = 12;
double pitch = MathHelper.Rad2Deg(Pitch) * scale;
int y = (int)(center.Y + pitch);
g.FillRect(_skyBrush, center, roll, new Rectangle(0, 0, _rect.Width, y));
g.FillRect(_groundBrush, center, roll, new Rectangle(0, y, _rect.Width, _rect.Height - y));
}
