altosui: Remember directory containing firmware files

Instead of forcing the user to navigate to the firmware directory each
time, this remembers the previous directory and starts there.

Signed-off-by: Keith Packard <keithp@keithp.com>

2 files changed, 32 insertions, 0 deletions

diff --git a/ao-tools/altosui/AltosFlashUI.java b/ao-tools/altosui/AltosFlashUI.java
index 5ed417da..86f57a5f 100644
--- a/ao-tools/altosui/AltosFlashUI.java
+++ b/ao-tools/altosui/AltosFlashUI.java
@@ -194,6 +194,10 @@ public class AltosFlashUI
 
 		JFileChooser	hexfile_chooser = new JFileChooser();
 
+		File firmwaredir = AltosPreferences.firmwaredir();
+		if (firmwaredir != null)
+			hexfile_chooser.setCurrentDirectory(firmwaredir);
+
 		hexfile_chooser.setDialogTitle("Select Flash Image");
 		hexfile_chooser.setFileFilter(new FileNameExtensionFilter("Flash Image", "ihx"));
 		int returnVal = hexfile_chooser.showOpenDialog(frame);
@@ -203,6 +207,9 @@ public class AltosFlashUI
 
 		file = hexfile_chooser.getSelectedFile();
 
+		if (file != null)
+			AltosPreferences.set_firmwaredir(file.getParentFile());
+
 		thread = new Thread(this);
 		thread.start();
 	}
diff --git a/ao-tools/altosui/AltosPreferences.java b/ao-tools/altosui/AltosPreferences.java
index 690f8f1e..52627563 100644
--- a/ao-tools/altosui/AltosPreferences.java
+++ b/ao-tools/altosui/AltosPreferences.java
@@ -40,6 +40,9 @@ class AltosPreferences {
 	/* callsign preference name */
 	final static String callsignPreference = "CALLSIGN";
 
+	/* firmware directory preference name */
+	final static String firmwaredirPreference = "FIRMWARE";
+
 	/* Default logdir is ~/TeleMetrum */
 	final static String logdirName = "TeleMetrum";
 
@@ -55,8 +58,12 @@ class AltosPreferences {
 	/* Voice preference */
 	static boolean voice;
 
+	/* Callsign preference */
 	static String callsign;
 
+	/* Firmware directory */
+	static File firmwaredir;
+
 	public static void init(Component ui) {
 		preferences = Preferences.userRoot().node("/org/altusmetrum/altosui");
 
@@ -78,6 +85,12 @@ class AltosPreferences {
 		voice = preferences.getBoolean(voicePreference, true);
 
 		callsign = preferences.get(callsignPreference,"N0CALL");
+
+		String firmwaredir_string = preferences.get(firmwaredirPreference, null);
+		if (firmwaredir_string != null)
+			firmwaredir = new File(firmwaredir_string);
+		else
+			firmwaredir = null;
 	}
 
 	static void flush_preferences() {
@@ -173,4 +186,16 @@ class AltosPreferences {
 	public static String callsign() {
 		return callsign;
 	}
+
+	public static void set_firmwaredir(File new_firmwaredir) {
+		firmwaredir = new_firmwaredir;
+		synchronized (preferences) {
+			preferences.put(firmwaredirPreference, firmwaredir.getPath());
+			flush_preferences();
+		}
+	}
+
+	public static File firmwaredir() {
+		return firmwaredir;
+	}
 }