@Override
public void init(final IViewSite site, final IMemento memento) throws PartInitException {
super.init(site, memento);
if (memento != null) {
try {
String dbpath = memento.getString(KEY_DB);
String itempath = memento.getString(KEY_ITEM);
if (dbpath != null && itempath != null) {
ILocalMixedMediaDb mmdb;
mmdb = Activator.getMediaFactory().getLocalMixedMediaDb(dbpath);
mmdb.read();
IMediaPicture item = mmdb.getByFile(itempath);
if (item != null) {
setInput(mmdb, item);
} else {
// TODO something with this error.
System.err.println("Failed to restore item '" + itempath + "' from '" + dbpath + "'.");
}
}
} catch (Exception e) {
new MorriganMsgDlg(e).open();
}
Boolean b = memento.getBoolean(KEY_TIMER);
if (b == null || b.booleanValue()) { // Default to true.
startTimer();
}
}
}
public EnableTimerAction() {
super("Timer", AS_CHECK_BOX);
this.setImageDescriptor(Activator.getImageDescriptor("icons/timer.png"));
}
public class ViewPicture extends ViewPart {
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
public static final String ID = "com.vaguehope.morrigan.gui.views.ViewPicture";
private static final int PICTURE_CHANGE_INTERVAL = 60000;
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@Override
public void createPartControl(final Composite parent) {
createLayout(parent);
initSelectionListener();
}
@Override
public void dispose() {
stopTimer();
removeSelectionListener();
disposeGui();
super.dispose();
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// State.
/*
* Some very basic code to save / restore local MMDB.
*/
private static final String KEY_TIMER = "TIMER";
private static final String KEY_DB = "DB";
private static final String KEY_ITEM = "ITEM";
@Override
public void saveState(final IMemento memento) {
super.saveState(memento);
memento.putBoolean(KEY_TIMER, isTimerEnabled());
if (this.editedItemDb != null
&& this.editedItemDb.getType().equals(MediaListType.LOCALMMDB.toString())) {
memento.putString(KEY_DB, this.editedItemDb.getDbPath());
memento.putString(KEY_ITEM, this.editedItem.getFilepath());
}
}
@Override
public void init(final IViewSite site, final IMemento memento) throws PartInitException {
super.init(site, memento);
if (memento != null) {
try {
String dbpath = memento.getString(KEY_DB);
String itempath = memento.getString(KEY_ITEM);
if (dbpath != null && itempath != null) {
ILocalMixedMediaDb mmdb;
mmdb = Activator.getMediaFactory().getLocalMixedMediaDb(dbpath);
mmdb.read();
IMediaPicture item = mmdb.getByFile(itempath);
if (item != null) {
setInput(mmdb, item);
} else {
// TODO something with this error.
System.err.println("Failed to restore item '" + itempath + "' from '" + dbpath + "'.");
}
}
} catch (Exception e) {
new MorriganMsgDlg(e).open();
}
Boolean b = memento.getBoolean(KEY_TIMER);
if (b == null || b.booleanValue()) { // Default to true.
startTimer();
}
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// External events.
private void initSelectionListener() {
ISelectionService service = getSite().getWorkbenchWindow().getSelectionService();
service.addSelectionListener(this.selectionListener);
}
private void removeSelectionListener() {
ISelectionService service = getSite().getWorkbenchWindow().getSelectionService();
service.removeSelectionListener(this.selectionListener);
}
volatile boolean listenToSelectionListener = true;
private final ISelectionListener selectionListener =
new ISelectionListener() {
@Override
public void selectionChanged(final IWorkbenchPart part, final ISelection selection) {
if (ViewPicture.this.listenToSelectionListener
&& part instanceof IMixedMediaItemDbEditor) {
if (selection == null || selection.isEmpty()) {
return;
}
IMixedMediaItemDbEditor editor = (IMixedMediaItemDbEditor) part;
IMediaItemDb<?, ? extends IMediaPicture> list = editor.getMediaList();
if (selection instanceof IStructuredSelection) {
IStructuredSelection iSel = (IStructuredSelection) selection;
ArrayList<IMediaPicture> sel = new ArrayList<IMediaPicture>();
for (Object selectedObject : iSel.toList()) {
if (selectedObject != null) {
if (selectedObject instanceof IMediaPicture) {
IMediaPicture track = (IMediaPicture) selectedObject;
sel.add(track);
}
}
}
setInput(list, sel);
}
}
}
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Data links.
IMediaItemDb<?, ? extends IMediaPicture> editedItemDb = null;
IMediaPicture editedItem = null;
public void setInput(
final IMediaItemDb<?, ? extends IMediaPicture> editedMediaList,
final List<? extends IMediaPicture> selection) {
IMediaPicture item = null;
if (selection != null && selection.size() > 0) {
if (selection.size() == 1) {
item = selection.get(0);
}
}
if (item != null && item.isPicture()) { // item will be null if multiple items selected.
setInput(editedMediaList, item);
}
}
public void setInput(
final IMediaItemDb<?, ? extends IMediaPicture> editedMediaList, final IMediaPicture item) {
if (this.editedItemDb != editedMediaList || this.editedItem != item) {
this.editedItem = item;
if (this.editedItem != null) {
this.editedItemDb = editedMediaList;
} else {
this.editedItemDb = null;
}
setPicture(this.editedItem);
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// GUI stuff.
protected final int sep = 3;
Canvas pictureCanvas = null;
Image pictureImage = null;
long pictureLastChanged = 0;
private void disposeGui() {
if (this.pictureImage != null && !this.pictureImage.isDisposed()) {
this.pictureImage.dispose();
this.pictureImage = null;
}
}
private void createLayout(final Composite parent) {
parent.setLayout(new FillLayout());
this.pictureCanvas = new Canvas(parent, SWT.NONE);
this.pictureCanvas.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_BLACK));
this.pictureCanvas.addPaintListener(this.picturePainter);
this.pictureCanvas.addKeyListener(this.keyListener);
getViewSite().getActionBars().getToolBarManager().add(this.prevItemAction);
getViewSite().getActionBars().getToolBarManager().add(this.nextItemAction);
getViewSite().getActionBars().getToolBarManager().add(this.randomItemAction);
getViewSite().getActionBars().getToolBarManager().add(this.enableTimerAction);
getViewSite().getActionBars().getToolBarManager().add(new Separator());
getViewSite().getActionBars().getToolBarManager().add(this.revealItemAction);
getViewSite().getActionBars().getToolBarManager().add(this.showTagsAction);
}
@Override
public void setFocus() {
if (this.pictureCanvas != null && !this.pictureCanvas.isDisposed()) {
this.pictureCanvas.setFocus();
}
}
private final KeyListener keyListener =
new KeyListener() {
@Override
public void keyReleased(final KeyEvent e) {
if (e.keyCode == SWT.ARROW_RIGHT
|| e.keyCode == SWT.ARROW_DOWN
|| e.keyCode == SWT.PAGE_DOWN
|| e.character == ' '
|| e.character == 'n'
|| e.character == 'f'
|| e.character == '\r') {
nextPicture(1);
} else if (e.keyCode == SWT.ARROW_LEFT
|| e.keyCode == SWT.ARROW_UP
|| e.keyCode == SWT.PAGE_UP
|| e.character == 'p'
|| e.character == 'b') {
nextPicture(-1);
} else if (e.character == 'r' || e.character == 'q' || e.character == 'g') {
randomPicture();
} else if (e.character == 't') {
try {
showTagsView();
} catch (Exception ex) {
new MorriganMsgDlg(ex).open();
}
}
}
@Override
public void keyPressed(final KeyEvent e) {
/* UNUSED */
}
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Loading and showing pictures.
class LoadPictureJob extends Job {
private final IMediaPicture item;
private final Display display;
public LoadPictureJob(final Display display, final IMediaPicture item) {
super("Loading picture");
this.display = display;
this.item = item;
}
@Override
protected IStatus run(final IProgressMonitor monitor) {
if (this.item != null) {
if (this.item.isEnabled()) {
if (ViewPicture.this.pictureImage != null) throw new IllegalArgumentException();
String filepath = this.item.getFilepath();
ViewPicture.this.pictureImage = new Image(this.display, filepath);
new UpdatePictureJob(this.display).schedule();
} else {
// TODO show disabled msg...
}
}
return Status.OK_STATUS;
}
}
class UpdatePictureJob extends UIJob {
public UpdatePictureJob(final Display jobDisplay) {
super(jobDisplay, "Update picture");
}
@Override
public IStatus runInUIThread(final IProgressMonitor monitor) {
ViewPicture.this.pictureLastChanged = System.currentTimeMillis();
if (!ViewPicture.this.pictureCanvas.isDisposed()) {
ViewPicture.this.pictureCanvas.redraw();
}
return Status.OK_STATUS;
}
}
private void setPicture(final IMediaPicture item) {
if (item == null) return;
if (item.isPicture()) {
if (ViewPicture.this.pictureImage != null && !ViewPicture.this.pictureImage.isDisposed()) {
ViewPicture.this.pictureImage.dispose();
ViewPicture.this.pictureImage = null;
}
getSite()
.getShell()
.getDisplay()
.asyncExec(
new Runnable() {
@SuppressWarnings("synthetic-access")
@Override
public void run() {
setContentDescription(
item.getTitle() + " (" + item.getWidth() + "x" + item.getHeight() + ")");
}
});
LoadPictureJob loadPictureJob = new LoadPictureJob(getSite().getShell().getDisplay(), item);
/*
* TODO FIXME use this to prevent two running at once!
*/
// loadPictureJob.setRule(new ISchedulingRule() {
//
// @Override
// public boolean isConflicting(ISchedulingRule rule) {
// return false;
// }
//
// @Override
// public boolean contains(ISchedulingRule rule) {
// return false;
// }
// });
loadPictureJob.schedule();
}
}
private final PaintListener picturePainter =
new PaintListener() {
@Override
public void paintControl(final PaintEvent e) {
if (ViewPicture.this.pictureImage != null) {
Rectangle srcBounds = ViewPicture.this.pictureImage.getBounds();
Rectangle dstBounds = ViewPicture.this.pictureCanvas.getClientArea();
double s1 = dstBounds.width / (double) srcBounds.width;
double s2 = dstBounds.height / (double) srcBounds.height;
int w;
int h;
int l;
int t;
if (s1 < s2) {
w = (int) (srcBounds.width * s1);
h = (int) (srcBounds.height * s1);
} else {
w = (int) (srcBounds.width * s2);
h = (int) (srcBounds.height * s2);
}
l = (dstBounds.width / 2) - (w / 2);
t = (dstBounds.height / 2) - (h / 2);
e.gc.drawImage(
ViewPicture.this.pictureImage, 0, 0, srcBounds.width, srcBounds.height, l, t, w, h);
}
}
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Control methods.
protected void nextPicture(final int x) {
if (this.editedItemDb != null && this.editedItem != null) {
List<? extends IMediaPicture> dbEntries = this.editedItemDb.getMediaItems();
int current = dbEntries.indexOf(this.editedItem);
int res = -1;
if (current >= 0) { // Did we find the current item?
int i = current + x;
while (i
!= current) { // Keep searching until we find a picture or we get back where we started.
if (i > dbEntries.size() - 1) {
i = 0;
} else if (i < 0) {
i = dbEntries.size() - 1;
}
if (dbEntries.get(i).isPicture()) {
res = i;
break;
}
i = i + x;
}
} else if (dbEntries.size() > 0) {
res = 0;
}
if (res >= 0) {
IMediaPicture entry = dbEntries.get(res);
// Reveal current item in list?
IEditorPart activeEditor =
getViewSite().getWorkbenchWindow().getActivePage().getActiveEditor();
if (activeEditor != null) {
IEditorInput edInput = activeEditor.getEditorInput();
if (edInput instanceof MediaItemListEditorInput) {
MediaItemListEditorInput<?> miEdInput = (MediaItemListEditorInput<?>) edInput;
if (miEdInput.getMediaList().getListId().equals(this.editedItemDb.getListId())) {
if (activeEditor instanceof MediaItemListEditor<?, ?>) {
MediaItemListEditor<?, ?> mediaListEditor =
(MediaItemListEditor<?, ?>) activeEditor;
mediaListEditor.revealItem(entry, false);
}
}
}
}
setInput(this.editedItemDb, entry);
}
}
}
protected void randomPicture() {
if (this.editedItemDb != null && this.editedItem != null) {
IMediaPicture item = getRandomItem(this.editedItemDb.getMediaItems(), this.editedItem);
setInput(this.editedItemDb, item);
}
}
protected void revealItemInList() throws PartInitException, MorriganException {
if (this.editedItemDb != null && this.editedItem != null) {
if (this.editedItemDb.getType().equals(MediaListType.LOCALMMDB.toString())) {
this.listenToSelectionListener = false;
try {
MediaItemDbEditorInput input =
EditorFactory.getMmdbInputBySerial(this.editedItemDb.getSerial());
getViewSite()
.getWorkbenchWindow()
.getActivePage()
.openEditor(input, LocalMixedMediaDbEditor.ID);
} finally {
this.listenToSelectionListener = true;
}
}
IEditorPart activeEditor =
getViewSite().getWorkbenchWindow().getActivePage().getActiveEditor();
if (activeEditor instanceof MediaItemListEditor<?, ?>) {
MediaItemListEditor<?, ?> mediaListEditor = (MediaItemListEditor<?, ?>) activeEditor;
mediaListEditor.revealItem(this.editedItem);
}
}
}
protected void showTagsView() throws PartInitException {
if (this.editedItemDb != null && this.editedItem != null) {
IViewPart showView = getSite().getPage().showView(ViewTagEditor.ID);
ViewTagEditor viewTagEd = (ViewTagEditor) showView;
viewTagEd.setInput(this.editedItemDb, this.editedItem);
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Scheduler.
private final Timer timer = new Timer();
private final AtomicReference<TimerTask> changeTimer = new AtomicReference<TimerTask>();
void startTimer() {
ChangeTask t = new ChangeTask();
if (this.changeTimer.compareAndSet(null, t)) {
this.timer.schedule(t, 5000, 5000);
this.enableTimerAction.setChecked(true);
}
}
void stopTimer() {
TimerTask t = this.changeTimer.get();
if (t != null && this.changeTimer.compareAndSet(t, null)) {
t.cancel();
this.enableTimerAction.setChecked(false);
}
}
boolean isTimerEnabled() {
return this.changeTimer.get() != null;
}
private class ChangeTask extends TimerTask {
long lastChaged = 0;
public ChangeTask() {
/* UNUSED */
}
@Override
public void run() {
if (this.lastChaged != ViewPicture.this.pictureLastChanged
&& System.currentTimeMillis() - ViewPicture.this.pictureLastChanged
>= PICTURE_CHANGE_INTERVAL) {
this.lastChaged = ViewPicture.this.pictureLastChanged;
randomPicture();
}
// else {
// System.err.println("Picture change in " + (PICTURE_CHANGE_INTERVAL -
// (System.currentTimeMillis() - ViewPicture.this.pictureLastChanged)));
// }
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Actions.
protected IAction nextItemAction =
new Action("Next", Activator.getImageDescriptor("icons/next.gif")) {
@Override
public void run() {
nextPicture(1);
}
};
protected IAction prevItemAction =
new Action("Previous", Activator.getImageDescriptor("icons/prev.gif")) {
@Override
public void run() {
nextPicture(-1);
}
};
protected IAction revealItemAction =
new Action("Reveal", Activator.getImageDescriptor("icons/jumptolist.active.gif")) {
@Override
public void run() {
try {
revealItemInList();
} catch (Exception e) {
new MorriganMsgDlg(e).open();
}
}
};
protected IAction randomItemAction =
new Action("Random", Activator.getImageDescriptor("icons/question.png")) {
@Override
public void run() {
randomPicture();
}
};
protected class EnableTimerAction extends Action {
public EnableTimerAction() {
super("Timer", AS_CHECK_BOX);
this.setImageDescriptor(Activator.getImageDescriptor("icons/timer.png"));
}
}
protected IAction enableTimerAction =
new EnableTimerAction() {
@Override
public void run() {
if (isChecked()) startTimer();
else stopTimer();
}
};
protected IAction showTagsAction =
new Action("Tags", Activator.getImageDescriptor("icons/tag.png")) {
@Override
public void run() {
try {
showTagsView();
} catch (Exception e) {
new MorriganMsgDlg(e).open();
}
}
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
private static IMediaPicture getRandomItem(
final List<? extends IMediaPicture> dbEntries, final IMediaPicture current) {
List<IMediaPicture> list = new LinkedList<IMediaPicture>();
for (IMediaPicture mi : dbEntries) {
if (mi.isEnabled() && !mi.isMissing() && mi != current && mi.isPicture()) {
list.add(mi);
}
}
if (list.size() < 1) return null;
Random generator = new Random();
int x = Math.round(generator.nextFloat() * list.size());
return list.get(x);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
}
