Add progress bar to download listing.

diff --git a/src/main/java/net/pterodactylus/xdcc/ui/stdin/ListDownloadsCommand.java b/src/main/java/net/pterodactylus/xdcc/ui/stdin/ListDownloadsCommand.java
index 8a19dff..c352cdf 100644 (file)
--- a/src/main/java/net/pterodactylus/xdcc/ui/stdin/ListDownloadsCommand.java
+++ b/src/main/java/net/pterodactylus/xdcc/ui/stdin/ListDownloadsCommand.java
@@ -35,6 +35,7 @@ import net.pterodactylus.irc.DccReceiver;
 import net.pterodactylus.xdcc.core.Core;
 import net.pterodactylus.xdcc.data.Download;
 
+import com.google.common.collect.FluentIterable;
 import com.google.common.collect.Ordering;
 
 /**
@@ -44,6 +45,8 @@ import com.google.common.collect.Ordering;
  */
 public class ListDownloadsCommand implements Command {
 
+       private static final int PROGRESS_BAR_WIDTH = 10;
+
        /** The core to operate on. */
        private final Core core;
 
@@ -82,7 +85,7 @@ public class ListDownloadsCommand implements Command {
                                outputWriter.write(String.format("[%d] %s requested from %s (not started yet)\n", counter++, download.pack().name(), download.bot().name()));
                                continue;
                        }
-                       outputWriter.write(String.format("[%d] %s from %s (%s, ", counter++, dccReceiver.filename(), download.bot().name(), f(dccReceiver.size())));
+                       outputWriter.write(String.format("[%d] %s %s from %s (%s, ", counter++, getProgressBar(dccReceiver, PROGRESS_BAR_WIDTH), dccReceiver.filename(), download.bot().name(), f(dccReceiver.size())));
                        if (dccReceiver.isRunning()) {
                                outputWriter.write(String.format("%.1f%%, %s/s, %s", dccReceiver.progress() * 100.0 / dccReceiver.size(), f(dccReceiver.currentRate()), t(SECONDS_LEFT.apply(download))));
                        } else {
@@ -99,4 +102,32 @@ public class ListDownloadsCommand implements Command {
                return state.setLastDownloads(downloads);
        }
 
+       /**
+        * Creates a progress bar for the given DCC receiver.
+        *
+        * @param dccReceiver
+        *              The DCC receiver to create the progress bar for
+        * @param progressBarWidth
+        *              The width of the progress bar (in characters)
+        * @return The progress bar for the given DCC receiver
+        */
+       private static String getProgressBar(DccReceiver dccReceiver, int progressBarWidth) {
+               FluentIterable<Character> partialProgressCharacters = from(asList(' ', '\u258f', '\u258e', '\u258d', '\u258c', '\u258b', '\u258a', '\u2589', '\u2588'));
+               double progress = dccReceiver.progress() * 100.0 / dccReceiver.size();
+               double singleBlockWidth = 100.0 / progressBarWidth;
+               int fullProgressBlocks = (int) (progress / singleBlockWidth);
+               double lastBlockProgress = (progress - fullProgressBlocks * singleBlockWidth) / singleBlockWidth;
+               StringBuilder progressBar = new StringBuilder(progressBarWidth);
+               for (int i = 0; i < progressBarWidth; ++i) {
+                       if (i < fullProgressBlocks) {
+                               progressBar.append(partialProgressCharacters.last().get());
+                       } else if (i > fullProgressBlocks) {
+                               progressBar.append(partialProgressCharacters.first().get());
+                       } else {
+                               progressBar.append(partialProgressCharacters.get((int) (lastBlockProgress * (partialProgressCharacters.size() - 1))));
+                       }
+               }
+               return progressBar.toString();
+       }
+
 }