int EBuffer::FoldOpen(int Line) { /*FOLD00*/
int f = FindFold(Line);
int l;
int level, toplevel;
int top;
if (f == -1) return 0;
if (FF[f].open == 1) return 1; // already open
if (Modify() == 0) return 0;
if (BFI(this, BFI_Undo)) {
if (PushULong(Line) == 0) return 0;
if (PushUChar(ucFoldOpen) == 0) return 0;
}
FF[f].open = 1;
top = FF[f].line;
toplevel = FF[f].level;
// printf("Fold starts with %d\n", FF[f].line);
if (ShowRow(FF[f].line) == 0) return 0;
while (f < FCount) {
level = FF[f].level;
if (FF[f].open == 1) {
// fold is open
if (f == FCount - 1) {
for (l = FF[f].line; l < RCount; l++)
if (l != top) if (ShowRow(l) == 0) return 0;
} else {
for (l = FF[f].line; l < FF[f + 1].line; l++)
if (l != top) if (ShowRow(l) == 0) return 0;
}
f++;
} else { // fold is closed
// show head line
if (ShowRow(FF[f].line) == 0) return 0;
// skip closed folds
while ((f < FCount) && (level < FF[f + 1].level)) f++;
f++;
}
if ((f < FCount) && (FF[f].level <= toplevel)) break;
}
return 1;
}
void
FlightSetupPanel::ShowAltitude(fixed altitude)
{
if (fabs(altitude - last_altitude) >= fixed(1)) {
last_altitude = altitude;
LoadValue(Altitude, altitude, UnitGroup::ALTITUDE);
}
ShowRow(Altitude);
}
