Tuple <Image, Image> LoadSignalImages(RoadID road)
{
Image l = new Image();
Image r = new Image();
switch (road)
{
case (RoadID.Bottom):
l.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_left.gif");
r.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_right.gif");
break;
case (RoadID.Left):
l.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_up.gif");
r.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_down.gif");
break;
case (RoadID.Top):
l.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_right.gif");
r.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_left.gif");
break;
case (RoadID.Right):
l.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_down.gif");
r.PixbufAnimation = new Gdk.PixbufAnimation(null, "monitor.resources.signal_up.gif");
break;
}
return(Tuple.Create(l, r));
}
Tuple <int, int> ComputeLabelPosition(RoadID road, Gdk.Rectangle allocation)
{
int x = 0;
int y = 0;
switch (road)
{
case (RoadID.Bottom):
x = allocation.Width / 2 + cRadW;
y = allocation.Height / 2 + cRadH;
break;
case (RoadID.Left):
x = allocation.Width / 2 - cRadW - labelW;
y = allocation.Height / 2 + cRadH;
break;
case (RoadID.Top):
x = allocation.Width / 2 - cRadW - labelW;
y = allocation.Height / 2 - cRadH - labelH;
break;
case (RoadID.Right):
x = allocation.Width / 2 + cRadW;
y = allocation.Height / 2 - cRadH - labelH;
break;
}
return(Tuple.Create(x, y));
}
void PlaceSignals(Image leftSignal, Image rightSignal, RoadID road)
{
Tuple <int, int, int, int> pos = ComputeSignalPositions(road, leftSignal, Allocation);
int xl = pos.Item1;
int yl = pos.Item2;
int xr = pos.Item3;
int yr = pos.Item4;
container.Put(leftSignal, xl, yl);
container.Put(rightSignal, xr, yr);
leftSignal.Hide();
rightSignal.Hide();
}
Label LoadLabel(RoadID road)
{
Label label = new Label();
label.SetSizeRequest(labelW, labelH);
label.ModifyBase(StateType.Normal, new Gdk.Color(230, 230, 230));
label.ModifyFont(Pango.FontDescription.FromString(fontFamily + " " + fontSize));
label.Text = MakeCarLabelText();
if (road == RoadID.Left || road == RoadID.Top)
{
label.Justify = Justification.Right;
}
return(label);
}
Image LoadCarImage(string expectedImagePath, RoadID id)
{
Image car;
// Image not present, I have to create it
try
{
car = Image.LoadFromResource(expectedImagePath);
car.Name = id + expectedImagePath;
}
catch (ArgumentException)
{
// The car advertised an unknown manufacturer or model
car = Image.LoadFromResource(unknownImagePath);
car.Name = id + unknownImagePath;
}
return(car);
}
/**
* returns the positions of the signals of the car on `road`.
* Assumptions: image `signal` already rotated; the two signals have the same size
*/
Tuple <int, int, int, int> ComputeSignalPositions(RoadID road, Image signal, Gdk.Rectangle allocation)
{
int sW = signal.PixbufAnimation.Width;
int sH = signal.PixbufAnimation.Height;
int xl = 0;
int yl = 0;
int xr = 0;
int yr = 0;
switch (road)
{
case (RoadID.Bottom):
xl = allocation.Width / 2;
yl = allocation.Height / 2 + cRadH - sH;
xr = xl + cRadW - sW;
yr = yl;
break;
case (RoadID.Left):
xl = allocation.Width / 2 - cRadW;
yl = allocation.Height / 2;
xr = xl;
yr = yl + cRadH - sH;
break;
case (RoadID.Top):
xl = allocation.Width / 2 - sW;
xr = xl - cRadW + sW;
yl = allocation.Height / 2 - cRadH;
yr = yl;
break;
case (RoadID.Right):
xl = allocation.Width / 2 + cRadW - sW;
xr = xl;
yl = allocation.Height / 2 - sH;
yr = yl - cRadH + sH;
break;
}
return(Tuple.Create(xl, yl, xr, yr));
}
Tuple <int, int> ComputeCarPosition(RoadID road, Image car, Gdk.Rectangle allocation)
{
int crossW = allocation.Width;
int crossH = allocation.Height;
int carLong = car.Pixbuf.Height > car.Pixbuf.Width ? car.Pixbuf.Height : car.Pixbuf.Width;
int carShort = car.Pixbuf.Height < car.Pixbuf.Width ? car.Pixbuf.Height : car.Pixbuf.Width;
int stepToMiddleShortW = (cRadW - carShort) / 2;
int stepToMiddleShortH = (cRadH - carShort) / 2;
int x = 0;
int y = 0;
switch (road)
{
case RoadID.Bottom:
x = crossW / 2 + stepToMiddleShortW;
y = crossH / 2 + cRadH;
break;
case RoadID.Left:
x = crossW / 2 - cRadW - carLong;
y = crossH / 2 + stepToMiddleShortH;
break;
case RoadID.Top:
x = crossW / 2 - cRadW + stepToMiddleShortW;
y = crossH / 2 - cRadW - carLong;
break;
case RoadID.Right:
x = crossW / 2 + cRadW;
y = crossH / 2 - cRadH + stepToMiddleShortH;
break;
}
return(Tuple.Create(x, y));
}
public Road(RoadID id)
{
Id = id;
}
void PlaceLabel(Label label, RoadID road)
{
Tuple <int, int> pos = ComputeLabelPosition(road, Allocation);
container.Put(label, pos.Item1, pos.Item2);
}
