protected override bool OnExposeEvent(Gdk.EventExpose evnt)
{
Context g = Gdk.CairoHelper.Create(evnt.Window);
g.Antialias = Antialias.None;
int winh;
int winw;
evnt.Window.GetSize(out winw, out winh);
Cairo.Distance d = new Cairo.Distance(winw, winh);
//this.BasicDrawTest (g);
this.DrawUnits(g, d);
this.DrawMapGrid(g, d);
this.DrawMouse(g, d);
((IDisposable)g).Dispose();
return(true);
}
protected void DrawUnits(Cairo.Context g, Cairo.Distance dimensions)
{
g.Save();
g.MoveTo(105, 105);
g.LineTo(105, 205);
g.LineTo(205, 205);
g.LineTo(205, 105);
g.LineTo(105, 105);
g.Restore();
g.Color = MapWidget.convert_color(this.blue);
g.FillPreserve();
g.Color = MapWidget.convert_color(this.black);
g.LineWidth = 1;
g.Stroke();
}
protected void DrawMouse(Cairo.Context g, Cairo.Distance dimensions)
{
if (this.drawmouse)
{
g.Save();
g.MoveTo((double)this.mouse_loc.X, 0);
g.LineTo((double)this.mouse_loc.X, dimensions.Dy);
g.MoveTo(0, (double)this.mouse_loc.Y);
g.LineTo(dimensions.Dx, (double)this.mouse_loc.Y);
g.Restore();
g.Color = MapWidget.convert_color(this.red);
g.LineWidth = 1;
g.Stroke();
}
}
protected void DrawMapGrid(Cairo.Context g, Cairo.Distance dimensions)
{
g.Save();
double xspan = dimensions.Dx / MapWidget.xgridlines;
double yspan = dimensions.Dy / MapWidget.ygridlines;
xspan = yspan = 10.0;
//Console.WriteLine ("dimensions={0}:{1} span={2}:{3}", dimensions.Dx, dimensions.Dy, xspan, yspan);
/*
* dimensions=1000:1000 span=1000:10
* dimensions=1000:1000 span=1000:10
* dimensions=1428:1000 span=1000:14.28
*/
Cairo.PointD location = new Cairo.PointD(0.0, 0.0);
// move along x axis
for (int i = 0; i < MapWidget.xgridlines; i++)
{
location.X += xspan;
Cairo.PointD p = new Cairo.PointD(location.X, 0);
g.MoveTo(p);
g.LineTo(location.X, ysize);
}
// move along y axis
for (int i = 0; i < MapWidget.ygridlines; i++)
{
location.Y += yspan;
Cairo.PointD p = new Cairo.PointD(0, location.Y);
g.MoveTo(p);
g.LineTo(xsize, location.Y);
}
g.Restore();
//g.Color = new Cairo.Color (86.0, 86.0, 86.0);
g.Color = MapWidget.convert_color(this.gray);
g.LineWidth = 1;
g.Stroke();
}
public void RelMoveTo(Distance d)
{
RelMoveTo (d.Dx, d.Dy);
}
public void RelLineTo(Distance d)
{
RelLineTo (d.Dx, d.Dy);
}
public void RelCurveTo(Distance d1, Distance d2, Distance d3)
{
RelCurveTo (d1.Dx, d1.Dy, d2.Dx, d2.Dy, d3.Dx, d3.Dy);
}
public void RelCurveTo(Distance d1, Distance d2, Distance d3)
{
RelCurveTo(d1.Dx, d1.Dy, d2.Dx, d2.Dy, d3.Dx, d3.Dy);
}
public void RelLineTo(Distance d)
{
RelLineTo(d.Dx, d.Dy);
}
public void RelMoveTo(Distance d)
{
RelMoveTo(d.Dx, d.Dy);
}
public void RelCurveTo(Distance d1, Distance d2, Distance d3)
{
ThrowIfDisposed();
RelCurveTo(d1.Dx, d1.Dy, d2.Dx, d2.Dy, d3.Dx, d3.Dy);
}
public void RelLineTo(Distance d)
{
ThrowIfDisposed();
RelLineTo(d.Dx, d.Dy);
}
protected override bool OnExposeEvent(Gdk.EventExpose evnt)
{
Context g = Gdk.CairoHelper.Create (evnt.Window);
g.Antialias = Antialias.None;
int winh;
int winw;
evnt.Window.GetSize(out winw, out winh);
Cairo.Distance d = new Cairo.Distance (winw, winh);
//this.BasicDrawTest (g);
this.DrawUnits (g, d);
this.DrawMapGrid (g, d);
this.DrawMouse (g, d);
((IDisposable)g).Dispose ();
return true;
}
