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package tim.prune.function.segments;
import java.util.ArrayList;
import java.util.List;
import tim.prune.App;
import tim.prune.GenericFunction;
import tim.prune.I18nManager;
import tim.prune.cmd.PointFlag;
import tim.prune.cmd.SetSegmentsCmd;
import tim.prune.data.DataPoint;
import tim.prune.data.Track;
/**
* Function to merge the track segments of the currently selected range
*/
public class MergeSegmentsFunction extends GenericFunction
{
public MergeSegmentsFunction(App inApp) {
super(inApp);
}
@Override
public String getNameKey() {
return "menu.range.mergetracksegments";
}
@Override
public void begin()
{
final int selectionStart = _app.getTrackInfo().getSelection().getStart();
final int selectionEnd = _app.getTrackInfo().getSelection().getEnd();
if (selectionStart < 0 || selectionEnd <= selectionStart) {
return;
}
List<PointFlag> flags = getFlags(_app.getTrackInfo().getTrack(), selectionStart, selectionEnd);
if (!flags.isEmpty())
{
SetSegmentsCmd command = new SetSegmentsCmd(flags);
command.setConfirmText(I18nManager.getText("confirm.mergetracksegments"));
command.setDescription(getName());
_app.execute(command);
}
}
/**
* Compile the list of point flags which need to be applied
* @param inTrack track object
* @param inRangeStart index of range start
* @param inRangeEnd index of range end, inclusive
* @return list of points to modify (if any)
*/
private List<PointFlag> getFlags(Track inTrack, int inRangeStart, int inRangeEnd)
{
ArrayList<PointFlag> flags = new ArrayList<>();
boolean firstTrackPoint = true;
for (int i=inRangeStart; i<=inRangeEnd; i++)
{
DataPoint point = inTrack.getPoint(i);
if (point.isWaypoint()) {
continue;
}
boolean segment = point.getSegmentStart();
if (firstTrackPoint)
{
if (!segment) {
flags.add(new PointFlag(point, true));
}
firstTrackPoint = false;
}
else if (segment) {
flags.add(new PointFlag(point, false));
}
}
if (!flags.isEmpty()) {
DataPoint nextPoint = inTrack.getNextTrackPoint(inRangeEnd + 1);
if (nextPoint != null) {
flags.add(new PointFlag(nextPoint, true));
}
}
return flags;
}
}
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