void InfoWidget::SetDrawInfo(Draw *draw) {
DrawInfo *info = draw->GetDrawInfo();
if (info == NULL)
return;
SetUnit(info->GetUnit());
SetColor(info->GetDrawColor());
SetPrec(info->GetPrec());
SetPeriod(draw->GetPeriod());
}
void GCDCGraphs::DrawYAxisVals(wxGraphicsContext& dc) {
Draw* draw = m_draws_wdg->GetSelectedDraw();
if (draw == NULL)
return;
DrawInfo *di = draw->GetDrawInfo();
if (!di->IsValid())
return;
double min = di->GetMin();
double max = di->GetMax();
if( max <= min ) {
// FIXME: Draw3 should atomaticly detect axes in that case, but
// it currently doesnt :(
wxLogWarning(_T("Parameter %s has invalid min/max values: min %f, max %f. Min is set to 0, and max to 100."), di->GetName().c_str(), min, max);
min = 0;
max = 100;
}
//procedure for calculating distance between marks stolen from SzarpDraw2
double x = max - min;
double step;
int i = 0;
if (x < 1)
for (;x < 1; x *=10, --i);
else
for (;(int)x / 10; x /=10, ++i);
if (x <= 1.5)
step = .1;
else if (x <= 3.)
step = .2;
else if (x <= 7.5)
step = .5;
else
step = 1.;
double acc = 1;
int prec = di->GetPrec();
for (int p = prec; p > 0; --p)
acc /= 10;
double factor = (i > 0) ? 10 : .1;
for (;i; i -= i / abs(i))
step *= factor;
if (step < acc)
step = acc;
dc.SetPen(wxPen(*wxWHITE, 1, wxSOLID));
int w, h;
GetClientSize(&w, &h);
h -= m_screen_margins.bottommargin + m_screen_margins.topmargin;
for (double val = max; (min - val) < acc; val -= step) {
int y = GetY(val, di);
dc.StrokeLine(m_screen_margins.leftmargin - 8, y, m_screen_margins.leftmargin, y);
wxString sval = di->GetValueStr(val, _T("- -"));
double textw, texth, textd, textel;
dc.GetTextExtent(sval, &textw, &texth, &textd, &textel);
dc.DrawText(sval, m_screen_margins.leftmargin - textw - 1, y + 2);
}
}