--- /dev/null
+package tim.prune.data;
+
+import java.util.ArrayList;
+
+/**
+ * Class to hold a list of Media, either Photos or Audio files
+ */
+public abstract class MediaList
+{
+ /** list of media objects */
+ protected ArrayList<MediaObject> _media = null;
+
+
+ /**
+ * Empty constructor
+ */
+ public MediaList() {
+ this(null);
+ }
+
+ /**
+ * Constructor
+ * @param inList ArrayList containing media objects
+ */
+ protected MediaList(ArrayList<MediaObject> inList)
+ {
+ _media = inList;
+ if (_media == null) {
+ _media = new ArrayList<MediaObject>();
+ }
+ }
+
+ /**
+ * @return the number of media in the list
+ */
+ public int getNumMedia() {
+ return _media.size();
+ }
+
+ /**
+ * Add an object to the list
+ * @param inObject object to add
+ */
+ public void addMedia(MediaObject inObject)
+ {
+ if (inObject != null) {
+ _media.add(inObject);
+ }
+ }
+
+ /**
+ * Add an object to the list at a specified index (used for undo)
+ * @param inObject object to add
+ * @param inIndex index at which to add
+ */
+ public void addMedia(MediaObject inObject, int inIndex)
+ {
+ if (inObject != null) {
+ _media.add(inIndex, inObject);
+ }
+ }
+
+
+ /**
+ * Remove the selected media from the list
+ * @param inIndex index number to remove
+ */
+ public void deleteMedia(int inIndex)
+ {
+ // Maybe throw exception if this fails?
+ _media.remove(inIndex);
+ }
+
+
+ /**
+ * Checks if the specified object is already in the list
+ * @param inMedia media object to check
+ * @return true if it's already in the list
+ */
+ public boolean contains(MediaObject inMedia) {
+ return (getMediaIndex(inMedia) > -1);
+ }
+
+
+ /**
+ * Get the index of the given media
+ * @param inMedia object to check
+ * @return index of this object in the list, or -1 if not found
+ */
+ public int getMediaIndex(MediaObject inMedia)
+ {
+ // Check if we need to check
+ final int num = getNumMedia();
+ if (num <= 0 || inMedia == null)
+ return -1;
+ // Loop over list
+ for (int i=0; i<num; i++)
+ {
+ MediaObject m = _media.get(i);
+ if (m != null && m.equals(inMedia)) {
+ return i;
+ }
+ }
+ // not found
+ return -1;
+ }
+
+
+ /**
+ * Get the media at the given index
+ * @param inIndex index number, starting at 0
+ * @return specified object
+ */
+ public MediaObject getMedia(int inIndex)
+ {
+ if (inIndex < 0 || inIndex >= getNumMedia()) return null;
+ return _media.get(inIndex);
+ }
+
+
+ /**
+ * Crop the list to the specified size
+ * @param inIndex previous size
+ */
+ public void cropTo(int inIndex)
+ {
+ if (inIndex <= 0)
+ {
+ // delete whole list
+ _media.clear();
+ }
+ else
+ {
+ // delete to previous size
+ while (_media.size() > inIndex) {
+ _media.remove(_media.size()-1);
+ }
+ }
+ }
+
+
+ /**
+ * @return array of file names
+ */
+ public String[] getNameList()
+ {
+ final int num = getNumMedia();
+ String[] names = new String[num];
+ for (int i=0; i<num; i++) {
+ names[i] = getMedia(i).getName();
+ }
+ return names;
+ }
+
+
+ /**
+ * @return true if list contains correlated media
+ */
+ public boolean hasCorrelatedMedia()
+ {
+ for (MediaObject m : _media) {
+ if (m.getDataPoint() != null) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * @return true if list contains uncorrelated media
+ */
+ public boolean hasUncorrelatedMedia()
+ {
+ for (MediaObject m : _media) {
+ if (m.getDataPoint() == null && m.hasTimestamp()) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+
+ /**
+ * Remove all correlated media from the list
+ */
+ public void removeCorrelatedMedia()
+ {
+ if (getNumMedia() > 0)
+ {
+ // Construct new list to copy into
+ ArrayList<MediaObject> listCopy = new ArrayList<MediaObject>();
+ // Loop over list
+ for (MediaObject m : _media)
+ {
+ // Copy media if it has no point
+ if (m != null)
+ {
+ if (m.getDataPoint() == null)
+ listCopy.add(m);
+ else
+ m.resetCachedData();
+ }
+ }
+ // Switch reference to new list
+ _media = listCopy;
+ }
+ }
+
+ /**
+ * @return true if any of the media objects have Files
+ */
+ public boolean hasMediaWithFile()
+ {
+ for (MediaObject m: _media) {
+ if (m.getFile() != null) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * @return true if there are any modified media in the list
+ */
+ public boolean hasModifiedMedia()
+ {
+ for (MediaObject m: _media) {
+ if (m.isModified()) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * @return clone of list contents
+ */
+ public abstract MediaList cloneList();
+
+ /**
+ * Restore contents from other MediaList
+ * @param inOther MediaList with cloned contents
+ */
+ public void restore(MediaList inOther)
+ {
+ _media.clear();
+ if (inOther != null && inOther.getNumMedia() > 0)
+ {
+ // Copy contents from other list
+ _media.addAll(inOther._media);
+ }
+ }
+}
projects / GpsPrune.git / blobdiff