X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdevicemanager.cpp;h=ac6ce6fb433da3fa29eefa9ba551c043c70f63b5;hp=883175c7752eb8cf27767a254d285da3760eb539;hb=941e22a645e89e7253f0faeb63b74ee97201dd91;hpb=83b1c8d251386ac1980284c4668cbdd8e425550f

diff --git a/pv/devicemanager.cpp b/pv/devicemanager.cpp
index 883175c7..ac6ce6fb 100644
--- a/pv/devicemanager.cpp
+++ b/pv/devicemanager.cpp
@@ -22,12 +22,17 @@
 
 #include <cassert>
 #include <functional>
-#include <stdexcept>
+#include <memory>
 #include <sstream>
+#include <stdexcept>
 #include <string>
 
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
+#include <QApplication>
+#include <QObject>
+#include <QProgressDialog>
+
 #include <boost/filesystem.hpp>
 
 #include <pv/devices/hardwaredevice.hpp>
@@ -39,6 +44,7 @@ using std::placeholders::_1;
 using std::placeholders::_2;
 using std::shared_ptr;
 using std::string;
+using std::unique_ptr;
 
 using Glib::VariantBase;
 
@@ -51,8 +57,24 @@ namespace pv {
 DeviceManager::DeviceManager(shared_ptr<Context> context) :
 	context_(context)
 {
-	for (auto entry : context->drivers())
+	unique_ptr<QProgressDialog> progress(new QProgressDialog("",
+		QObject::tr("Cancel"), 0, context->drivers().size()));
+	progress->setWindowModality(Qt::WindowModal);
+	progress->setMinimumDuration(1);  // To show the dialog immediately
+
+	int entry_num = 1;
+
+	for (auto entry : context->drivers()) {
+		progress->setLabelText(QObject::tr("Scanning for %1...")
+			.arg(QString::fromStdString(entry.first)));
+
 		driver_scan(entry.second, map<const ConfigKey *, VariantBase>());
+
+		progress->setValue(entry_num++);
+		QApplication::processEvents();
+		if (progress->wasCanceled())
+			break;
+	}
 }
 
 const shared_ptr<sigrok::Context>& DeviceManager::context() const
@@ -79,6 +101,18 @@ DeviceManager::driver_scan(
 
 	assert(driver);
 
+	/*
+	 * We currently only support devices that can deliver samples at
+	 * a fixed samplerate (i.e. oscilloscopes and logic analysers).
+	 *
+	 * @todo Add support for non-monotonic devices (DMMs, sensors, etc).
+	 */
+	const auto keys = driver->config_keys();
+	bool supported_device = keys.count(ConfigKey::LOGIC_ANALYZER) |
+		keys.count(ConfigKey::OSCILLOSCOPE);
+	if (!supported_device)
+		return driver_devices;
+
 	// Remove any device instances from this driver from the device
 	// list. They will not be valid after the scan.
 	devices_.remove_if([&](shared_ptr<devices::HardwareDevice> device) {