void
CrossSectionWindow::Paint(Canvas &canvas, const PixelRect rc)
{
fixed hmin = max(fixed_zero, gps_info.nav_altitude - fixed(3300));
fixed hmax = max(fixed(3300), gps_info.nav_altitude + fixed(1000));
Chart chart(chart_look, canvas, rc);
chart.ResetScale();
chart.ScaleXFromValue(fixed_zero);
chart.ScaleXFromValue(vec.distance);
chart.ScaleYFromValue(hmin);
chart.ScaleYFromValue(hmax);
PaintAirspaces(canvas, chart);
PaintTerrain(canvas, chart);
PaintGlide(chart);
PaintAircraft(canvas, chart, rc);
PaintGrid(canvas, chart);
}
void
CrossSectionRenderer::Paint(Canvas &canvas, const PixelRect rc) const
{
DrawVerticalGradient(canvas, rc,
look.sky_color, look.background_color,
look.background_color);
canvas.SetTextColor(look.text_color);
canvas.Select(*look.grid_font);
ChartRenderer chart(chart_look, canvas, rc);
if (!vec.IsValid() || !start.IsValid()) {
chart.DrawNoData();
return;
}
const fixed nav_altitude = gps_info.NavAltitudeAvailable()
? gps_info.nav_altitude
: fixed(0);
fixed hmin = std::max(fixed(0), nav_altitude - fixed(3300));
fixed hmax = std::max(fixed(3300), nav_altitude + fixed(1000));
chart.ResetScale();
chart.ScaleXFromValue(fixed(0));
chart.ScaleXFromValue(vec.distance);
chart.ScaleYFromValue(hmin);
chart.ScaleYFromValue(hmax);
short elevations[NUM_SLICES];
UpdateTerrain(elevations);
if (airspace_database != nullptr) {
const AircraftState aircraft = ToAircraftState(Basic(), Calculated());
airspace_renderer.Draw(canvas, chart, *airspace_database, start, vec,
aircraft);
}
terrain_renderer.Draw(canvas, chart, elevations);
PaintGlide(chart);
PaintAircraft(canvas, chart, rc);
PaintGrid(canvas, chart);
}
