*
* The MIT License (MIT)
*
- * Copyright (C) 2017 Kevin Lamonte
+ * Copyright (C) 2019 Kevin Lamonte
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
package jexer.tterminal;
import java.io.BufferedOutputStream;
+import java.io.CharArrayWriter;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
-import java.util.LinkedList;
import java.util.List;
import jexer.TKeypress;
/**
* The scrollback buffer characters + attributes.
*/
- private volatile List<DisplayLine> scrollback;
+ private volatile ArrayList<DisplayLine> scrollback;
/**
* The raw display buffer characters + attributes.
*/
- private volatile List<DisplayLine> display;
+ private volatile ArrayList<DisplayLine> display;
+
+ /**
+ * The maximum number of lines in the scrollback buffer.
+ */
+ private int maxScrollback = 10000;
/**
* The terminal's input. For type == XTERM, this is an InputStreamReader
csiParams = new ArrayList<Integer>();
tabStops = new ArrayList<Integer>();
- scrollback = new LinkedList<DisplayLine>();
- display = new LinkedList<DisplayLine>();
+ scrollback = new ArrayList<DisplayLine>();
+ display = new ArrayList<DisplayLine>();
this.type = type;
if (inputStream instanceof TimeoutInputStream) {
ch = readBuffer[i];
}
- consume((char)ch);
+ consume((char) ch);
}
}
// Permit my enclosing UI to know that I updated.
}
// System.err.println("end while loop"); System.err.flush();
} catch (IOException e) {
- e.printStackTrace();
done = true;
+
+ // This is an unusual case. We want to see the stack trace,
+ // but it is related to the spawned process rather than the
+ // actual UI. We will generate the stack trace, and consume
+ // it as though it was emitted by the shell.
+ CharArrayWriter writer= new CharArrayWriter();
+ // Send a ST and RIS to clear the emulator state.
+ try {
+ writer.write("\033\\\033c");
+ writer.write("\n-----------------------------------\n");
+ e.printStackTrace(new PrintWriter(writer));
+ writer.write("\n-----------------------------------\n");
+ } catch (IOException e2) {
+ // SQUASH
+ }
+ char [] stackTrace = writer.toCharArray();
+ for (int i = 0; i < stackTrace.length; i++) {
+ if (stackTrace[i] == '\n') {
+ consume('\r');
+ }
+ consume(stackTrace[i]);
+ }
}
} // while ((done == false) && (stopReaderThread == false))
try {
readerThread.join(1000);
} catch (InterruptedException e) {
- e.printStackTrace();
+ // SQUASH
}
}
private void newDisplayLine() {
// Scroll the top line off into the scrollback buffer
scrollback.add(display.get(0));
+ if (scrollback.size() > maxScrollback) {
+ scrollback.remove(0);
+ scrollback.trimToSize();
+ }
display.remove(0);
+ display.trimToSize();
DisplayLine line = new DisplayLine(currentState.attr);
line.setReverseColor(reverseVideo);
display.add(line);
display.size());
List<DisplayLine> displayMiddle = display.subList(regionBottom + 1
- remaining, regionBottom + 1);
- display = new LinkedList<DisplayLine>(displayTop);
+ display = new ArrayList<DisplayLine>(displayTop);
display.addAll(displayMiddle);
for (int i = 0; i < n; i++) {
DisplayLine line = new DisplayLine(currentState.attr);
display.size());
List<DisplayLine> displayMiddle = display.subList(regionTop,
regionTop + remaining);
- display = new LinkedList<DisplayLine>(displayTop);
+ display = new ArrayList<DisplayLine>(displayTop);
for (int i = 0; i < n; i++) {
DisplayLine line = new DisplayLine(currentState.attr);
line.setReverseColor(reverseVideo);