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decouple ReadImageTask and MediaViewImagePanel

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This commit is contained in:
jmillman 2015-12-11 17:55:02 -05:00
parent 754d1708e9
commit b93360e80e
1 changed files with 73 additions and 45 deletions
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118
Core/src/org/sleuthkit/autopsy/corecomponents/MediaViewImagePanel.java
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@ -28,14 +28,17 @@ import java.io.InputStream;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import static java.util.Objects.nonNull;
import java.util.SortedSet;
import java.util.concurrent.ExecutionException;
import java.util.logging.Level;
import java.util.stream.Collectors;
import javafx.application.Platform;
import javafx.concurrent.Task;
import javafx.concurrent.WorkerStateEvent;
import javafx.embed.swing.JFXPanel;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.Cursor;
import javafx.scene.Scene;
@ -110,7 +113,7 @@ public class MediaViewImagePanel extends JPanel implements DataContentViewerMedi
.map("."::concat) //NOI18N
.collect(Collectors.toList());
private LoadImageTask readImageTask;
private ReadImageTask readImageTask;
/**
* Creates new form MediaViewImagePanel
@ -160,6 +163,14 @@ public class MediaViewImagePanel extends JPanel implements DataContentViewerMedi
});
}
private void showErrorNode(AbstractFile file) {
externalViewerButton.setOnAction(actionEvent -> //fx ActionEvent
new ExternalViewerAction(Bundle.MediaViewImagePanel_externalViewerButton_text(), new FileNode(file))
.actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "")) //Swing ActionEvent //NOI18N
);
borderpane.setCenter(errorNode);
}
/**
* Show the contents of the given AbstractFile as a visual image.
*
@ -175,7 +186,58 @@ public class MediaViewImagePanel extends JPanel implements DataContentViewerMedi
if (readImageTask != null) {
readImageTask.cancel();
}
readImageTask = new LoadImageTask(file);
readImageTask = new ReadImageTask(file);
readImageTask.setOnSucceeded(new EventHandler<WorkerStateEvent>() {
@Override
public void handle(WorkerStateEvent event) {
//Note that all error conditions are allready logged in readImageTask.succeeded()
if (!Case.isCaseOpen()) {
/*
* handle in-between condition when case is being closed
* and an image was previously selected
*/
reset();
return;
}
try {
Image fxImage = readImageTask.get();
if (nonNull(fxImage)) {
//we have non-null image show it
fxImageView.setImage(fxImage);
borderpane.setCenter(fxImageView);
} else {
showErrorNode(file);
}
} catch (InterruptedException | ExecutionException ex) {
showErrorNode(file);
}
borderpane.setCursor(Cursor.DEFAULT);
}
});
readImageTask.setOnFailed(new EventHandler<WorkerStateEvent>() {
@Override
public void handle(WorkerStateEvent event) {
if (!Case.isCaseOpen()) {
/*
* handle in-between condition when case is being closed
* and an image was previously selected
*/
reset();
return;
}
externalViewerButton.setOnAction(actionEvent -> //fx ActionEvent
new ExternalViewerAction(Bundle.MediaViewImagePanel_externalViewerButton_text(), new FileNode(file))
.actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "")) //Swing ActionEvent //NOI18N
);
borderpane.setCenter(errorNode);
borderpane.setCursor(Cursor.DEFAULT);
}
});
maskerPane.setProgressNode(progressBar);
progressBar.progressProperty().bind(readImageTask.progressProperty());
@ -233,12 +295,12 @@ public class MediaViewImagePanel extends JPanel implements DataContentViewerMedi
// Variables declaration - do not modify//GEN-BEGIN:variables
// End of variables declaration//GEN-END:variables
private class LoadImageTask extends Task<Image> implements IIOReadProgressListener {
static private class ReadImageTask extends Task<Image> implements IIOReadProgressListener {
private final AbstractFile file;
volatile private BufferedImage bufferedImage = null;
LoadImageTask(AbstractFile file) {
ReadImageTask(AbstractFile file) {
this.file = file;
}
@ -292,72 +354,38 @@ public class MediaViewImagePanel extends JPanel implements DataContentViewerMedi
}
}
private void logError(@Nullable Throwable e) {
public void logError(@Nullable Throwable e) {
String message = e == null ? "" : "It may be unsupported or corrupt: " + e.getLocalizedMessage(); //NOI18N
try {
LOGGER.log(Level.WARNING, "The MediaView tab could not read the image: {0}. {1}", new Object[]{file.getUniquePath(), message}); //NOI18N
LOGGER.log(Level.WARNING, "Could not read the image: {0}. {1}", new Object[]{file.getUniquePath(), message}); //NOI18N
} catch (TskCoreException tskCoreException) {
LOGGER.log(Level.WARNING, "The MediaView tab could not read the image: {0}. {1}", new Object[]{file.getName(), message}); //NOI18N
LOGGER.log(Level.SEVERE, "Failes to get unique path for file", tskCoreException); //NOI18N
LOGGER.log(Level.WARNING, "Could not read the image: {0}. {1}", new Object[]{file.getName(), message}); //NOI18N
LOGGER.log(Level.SEVERE, "Failed to get unique path for file", tskCoreException); //NOI18N
}
}
@Override
protected void failed() {
super.failed();
if (!Case.isCaseOpen()) {
/*
* handle in-between condition when case is being closed and an
* image was previously selected
*/
reset();
return;
}
handleError(getException());
borderpane.setCursor(Cursor.DEFAULT);
}
private void handleError(Throwable e) {
logError(e);
externalViewerButton.setOnAction(actionEvent -> //fx ActionEvent
new ExternalViewerAction(Bundle.MediaViewImagePanel_externalViewerButton_text(), new FileNode(file))
.actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "")) //Swing ActionEvent //NOI18N
);
borderpane.setCenter(errorNode);
logError(getException());
}
@Override
protected void succeeded() {
super.succeeded();
if (!Case.isCaseOpen()) {
/*
* handle in-between condition when case is being closed and an
* image was previously selected
*/
reset();
return;
}
try {
Image fxImage = get();
if (fxImage == null) {
handleError(null);
logError(null);
} else {
//we have non-null image show it
fxImageView.setImage(fxImage);
borderpane.setCenter(fxImageView);
if (fxImage.isError()) {
//if there was somekind of error, log it
logError(fxImage.getException());
}
}
} catch (InterruptedException | ExecutionException ex) {
handleError(ex.getCause());
logError(ex.getCause());
}
borderpane.setCursor(Cursor.DEFAULT);
}
@Override