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package tim.prune.function;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JOptionPane;
import tim.prune.App;
import tim.prune.GenericFunction;
import tim.prune.I18nManager;
import tim.prune.cmd.Command;
import tim.prune.cmd.CompoundCommand;
import tim.prune.cmd.ConnectMultipleMediaCmd;
import tim.prune.cmd.MediaLinkType;
import tim.prune.cmd.PointAndMedia;
import tim.prune.cmd.PointFlag;
import tim.prune.cmd.RemoveMediaCmd;
import tim.prune.cmd.ShuffleAndCropCmd;
import tim.prune.data.DataPoint;
import tim.prune.data.MediaObject;
import tim.prune.data.Track;
import tim.prune.function.media.PopupResponse;
/**
* Abstract class to hold general deletion routines to delete
* either one or two track sections. Forms parent class to
* the DeleteSelection and CropToSelection functions
*/
public abstract class DeleteBitOfTrackFunction extends GenericFunction
{
/**
* Constructor
* @param inApp application object for callback
*/
protected DeleteBitOfTrackFunction(App inApp) {
super(inApp);
}
/**
* Decide whether to delete the media or unlink them
* @param inNumMedia number of media found
* @return decision what to do with them
*/
protected PopupResponse chooseMediaAction(int inNumMedia)
{
if (inNumMedia <= 0) {
return PopupResponse.MEDIA_NOT_CONNECTED;
}
final String message = I18nManager.getTextWithNumber("dialog.deletepoints.deletemedia", inNumMedia);
int response = JOptionPane.showConfirmDialog(_app.getFrame(), message,
I18nManager.getText("dialog.deletepoints.title"),
JOptionPane.YES_NO_CANCEL_OPTION);
if (response == JOptionPane.CANCEL_OPTION || response == JOptionPane.CLOSED_OPTION)
{
// cancel pressed- abort delete
return PopupResponse.CANCEL;
}
return (response == JOptionPane.YES_OPTION ? PopupResponse.DELETE : PopupResponse.UNLINK);
}
/**
* Prepare the lists of point indexes, photos and audios
* @param inIndexesToKeep list of point indexes to keep
* @param inIndexesToDelete list of point indexes to delete
* @param inCriterion index criterion describing range to keep
* @return number of media found
*/
protected int fillLists(List<Integer> inIndexesToKeep, List<Integer> inIndexesToDelete,
PointToKeepCriterion inCriterion)
{
Track track = _app.getTrackInfo().getTrack();
int numMedia = 0;
int numPoints = track.getNumPoints();
for (int i=0; i<numPoints; i++)
{
if (inCriterion.keepIndex(i)) {
inIndexesToKeep.add(i);
}
else
{
inIndexesToDelete.add(i);
if (track.getPoint(i).hasMedia()) {
numMedia++;
}
}
}
return numMedia;
}
/**
* Create the compound command to do the delete
* @param inIndexesToKeep list of indexes to keep, in order
* @param inIndexesToDelete list of indexes to delete
* @param inSegmentFlags segment flags to set, if any
* @param inNumMedia number of media found to be deleted / unlinked
* @return command to be executed
*/
protected CompoundCommand createCommand(List<Integer> inIndexesToKeep, List<Integer> inIndexesToDelete,
List<PointFlag> inSegmentFlags, int inNumMedia)
{
PopupResponse mediaAction = chooseMediaAction(inNumMedia);
if (mediaAction == PopupResponse.CANCEL) {
return null;
}
CompoundCommand command = new ShuffleAndCropCmd(inIndexesToKeep, inIndexesToDelete, inSegmentFlags);
switch (mediaAction)
{
case DELETE:
command.addCommand(makeDeleteMediaCommand(inIndexesToDelete));
break;
case UNLINK:
command.addCommand(makeUnlinkMediaCommand(inIndexesToDelete));
break;
case MEDIA_NOT_CONNECTED:
case CANCEL:
default:
break;
}
return command;
}
/**
* @param inIndexesToDelete indexes of points which will be deleted
* @return command to unlink points from their media
*/
private Command makeUnlinkMediaCommand(List<Integer> inIndexesToDelete)
{
ArrayList<PointAndMedia> points = new ArrayList<>();
for (int i : inIndexesToDelete)
{
DataPoint point = _app.getTrackInfo().getTrack().getPoint(i);
if (point.hasMedia()) {
points.add(new PointAndMedia(point, null, null)); // disconnect
}
}
return new ConnectMultipleMediaCmd(MediaLinkType.LINK_BOTH, points);
}
/**
* @param inIndexesToDelete indexes of points which will be deleted
* @return command to remove the media belonging to these points
*/
private Command makeDeleteMediaCommand(List<Integer> inIndexesToDelete)
{
ArrayList<MediaObject> media = new ArrayList<>();
for (int i : inIndexesToDelete)
{
DataPoint point = _app.getTrackInfo().getTrack().getPoint(i);
if (point.getPhoto() != null) {
media.add(point.getPhoto());
}
if (point.getAudio() != null) {
media.add(point.getAudio());
}
}
return new RemoveMediaCmd(media);
}
/**
* Criterion for keeping a point index
*/
interface PointToKeepCriterion {
boolean keepIndex(int inIndex);
}
}
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