From: Gerhard Sittig <gerhard.sittig@gmx.net>
Date: Sun, 25 Jun 2017 18:11:39 +0000 (+0200)
Subject: main window: Prefer the user specified device in new sessions
X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=commitdiff_plain;h=6e2a5b1d677a26a637465cd4d304e2bc52e14f36

main window: Prefer the user specified device in new sessions

Prefer the device that was found with user provided scan options when a
-d command line option was specified. Stick with the previous selection
of "genuine" devices before demo otherwise (when nothing was found, or
when -d was not specified).
---

diff --git a/pv/mainwindow.cpp b/pv/mainwindow.cpp
index 8b11d08..119ce0a 100644
--- a/pv/mainwindow.cpp
+++ b/pv/mainwindow.cpp
@@ -338,20 +338,26 @@ void MainWindow::add_default_session()
 
 	shared_ptr<Session> session = add_session();
 
-	map<string, string> dev_info;
-	shared_ptr<devices::HardwareDevice> other_device, demo_device;
-
-	// Use any available device that's not demo
+	// Check the list of available devices. Prefer the one that was
+	// found with user supplied scan specs (if applicable). Then try
+	// one of the auto detected devices that are not the demo device.
+	// Pick demo in the absence of "genuine" hardware devices.
+	shared_ptr<devices::HardwareDevice> user_device, other_device, demo_device;
 	for (shared_ptr<devices::HardwareDevice> dev : device_manager_.devices()) {
-		if (dev->hardware_device()->driver()->name() == "demo") {
+		if (dev == device_manager_.user_spec_device()) {
+			user_device = dev;
+		} else if (dev->hardware_device()->driver()->name() == "demo") {
 			demo_device = dev;
 		} else {
 			other_device = dev;
 		}
 	}
-
-	// ...and if there isn't any, just use demo then
-	session->select_device(other_device ? other_device : demo_device);
+	if (user_device)
+		session->select_device(user_device);
+	else if (other_device)
+		session->select_device(other_device);
+	else
+		session->select_device(demo_device);
 }
 
 void MainWindow::save_sessions()