public void loadTags() {
if (this.tagFilenames != null
&& this.tagFilenames.length > 0
&& viewer.getSwingGUI().getCurrentPage() > 0) {
// grab tag text and update tags
currentTagFilename = this.tagFilenames[viewer.getSwingGUI().getCurrentPage() - 1] + ".txt";
try (FileReader fr = new FileReader(currentTagFilename);
BufferedReader br = new BufferedReader(fr)) {
StringBuilder sb = new StringBuilder();
String line = br.readLine();
while (line != null) {
sb.append(line);
sb.append(System.lineSeparator());
line = br.readLine();
}
tags.setText(sb.toString());
} catch (FileNotFoundException ex) {
// just don't do anything, the tag file doesn't exist which is ok.
// expected result: keep whatever text is in 'tags' UI element
} catch (IOException ex) {
Logger.getLogger(PDFViewer.class.getName()).log(Level.SEVERE, null, ex);
}
}
// request focus for tags
tags.requestFocus();
}
public void resetViewer() {
// create main preview pane
JInternalFrame rootContainer = new JInternalFrame("Preview Pane");
// Setup the viewer
viewer = new Viewer(rootContainer, null);
// load properties from jar
viewer.loadProperties("jar:/.properties.xml");
viewer.setupViewer();
viewer
.getSwingGUI()
.addPageChangeListener(
new DocumentListener() {
@Override
public void insertUpdate(DocumentEvent e) {
// new page inserted in view, load tags
loadTags();
}
@Override
public void removeUpdate(DocumentEvent e) {}
@Override
public void changedUpdate(DocumentEvent e) {}
});
// Add the viewer to the frame
frame.add(rootContainer, BorderLayout.CENTER);
// Require for internalFrame to be displayed
rootContainer.setVisible(true);
// shouldn't do this here, but need it for now
if (this.tagFilenames != null && this.tagFilenames.length > 0) {
viewer.executeCommand(Commands.OPENFILE, new File[] {new File(TMP_FILE)});
}
}
public void showPreviousPage() {
// previous page (page change event will load tags)
viewer.executeCommand(Commands.BACKPAGE, null);
}
public void showNextPage() {
// next page (page change event will load tags)
viewer.executeCommand(Commands.FORWARDPAGE, null);
}