Formatting throughput stats properly

main/ui/src/main/java/org/cryptomator/ui/controls/ThrougputLabel.java

@@ -0,0 +1,92 @@
+package org.cryptomator.ui.controls;
+
+import javafx.beans.binding.Bindings;
+import javafx.beans.binding.StringBinding;
+import javafx.beans.property.LongProperty;
+import javafx.beans.property.SimpleLongProperty;
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+import javafx.scene.control.Label;
+
+public class ThrougputLabel extends Label {
+
+	private static final long kibsThreshold = 1l << 7; // 0.128 kiB/s
+	private static final long mibsThreshold = 1l << 19; // 0.512 MiB/s
+
+	private final StringProperty idleFormat = new SimpleStringProperty("-");
+	private final StringProperty kibsFormat = new SimpleStringProperty("%.3f");
+	private final StringProperty mibsFormat = new SimpleStringProperty("%.3f");
+	private final LongProperty bytesPerSecond = new SimpleLongProperty();
+
+	public ThrougputLabel() {
+		textProperty().bind(createStringBinding());
+	}
+
+
+	protected StringBinding createStringBinding() {
+		return Bindings.createStringBinding(this::updateText, kibsFormat, mibsFormat, bytesPerSecond);
+	}
+
+	private String updateText() {
+		long bps = bytesPerSecond.get();
+		if (bps > mibsThreshold) {
+			double mibs = ((double) bytesPerSecond.get()) / 1024.0 / 1024.0;
+			return String.format(mibsFormat.get(), mibs);
+		} else if (bps > kibsThreshold) {
+			double kibs = ((double) bytesPerSecond.get()) / 1024.0;
+			return String.format(kibsFormat.get(), kibs);
+		} else {
+			return String.format(idleFormat.get(), bps);
+		}
+	}
+
+	/* Observables */
+
+	public StringProperty idleFormatProperty() {
+		return idleFormat;
+	}
+
+	public String getIdleFormat() {
+		return idleFormat.get();
+	}
+
+	public void setIdleFormat(String idleFormat) {
+		this.idleFormat.set(idleFormat);
+	}
+
+	public StringProperty kibsFormatProperty() {
+		return kibsFormat;
+	}
+
+	public String getKibsFormat() {
+		return kibsFormat.get();
+	}
+
+	public void setKibsFormat(String kibsFormat) {
+		this.kibsFormat.set(kibsFormat);
+	}
+
+	public StringProperty mibsFormatProperty() {
+		return mibsFormat;
+	}
+
+	public String getMibsFormat() {
+		return mibsFormat.get();
+	}
+
+	public void setMibsFormat(String mibsFormat) {
+		this.mibsFormat.set(mibsFormat);
+	}
+
+	public LongProperty bytesPerSecondProperty() {
+		return bytesPerSecond;
+	}
+
+	public long getBytesPerSecond() {
+		return bytesPerSecond.get();
+	}
+
+	public void setBytesPerSecond(long bytesPerSecond) {
+		this.bytesPerSecond.set(bytesPerSecond);
+	}
+}

main/ui/src/main/resources/fxml/vault_detail.fxml

@@ -10,6 +10,7 @@
 <?import javafx.scene.layout.StackPane?>
 <?import javafx.scene.layout.VBox?>
 <?import org.cryptomator.ui.controls.FontAwesome5IconView?>
+<?import org.cryptomator.ui.controls.ThrougputLabel?>
 <VBox xmlns="http://javafx.com/javafx"
 	  xmlns:fx="http://javafx.com/fxml"
 	  fx:controller="org.cryptomator.ui.mainwindow.VaultDetailController"
@@ -71,12 +72,12 @@
 				<graphic>
 					<HBox alignment="CENTER" spacing="24">
 						<VBox styleClass="button-group-labels" HBox.hgrow="ALWAYS">
-							<Label text="${controller.vault.stats.bytesPerSecondRead}"/>
 							<Label styleClass="button-group-heading" text="%main.vaultDetail.bytesPerSecondRead"/>
+							<ThrougputLabel idleFormat="%main.vaultDetail.throughput.idle" kibsFormat="%main.vaultDetail.throughput.kbps" mibsFormat="%main.vaultDetail.throughput.mbps" bytesPerSecond="${controller.vault.stats.bytesPerSecondRead}"/>
 						</VBox>
 						<VBox styleClass="button-group-labels" HBox.hgrow="ALWAYS">
-							<Label text="${controller.vault.stats.bytesPerSecondWritten}"/>
 							<Label styleClass="button-group-heading" text="%main.vaultDetail.bytesPerSecondWritten"/>
+							<ThrougputLabel idleFormat="%main.vaultDetail.throughput.idle" kibsFormat="%main.vaultDetail.throughput.kbps" mibsFormat="%main.vaultDetail.throughput.mbps" bytesPerSecond="${controller.vault.stats.bytesPerSecondWritten}"/>
 						</VBox>
 						<Region HBox.hgrow="ALWAYS"/>
 						<Label styleClass="button-group-action" text="%main.vaultDetail.showChart" minWidth="-Infinity"/>