]> sigrok.org Git - pulseview.git/blobdiff - pv/session.cpp
Fix crash when saving session with open files
[pulseview.git] / pv / session.cpp
index 74cb82dc99aae5b847ca5660bc56d953e931d168..8bb1cb0d5741161217ea8608607efe3eb589f955 100644 (file)
 #include <boost/thread/locks.hpp>
 #include <boost/thread/shared_mutex.hpp>
 
-#ifdef ENABLE_DECODE
-#include <libsigrokdecode/libsigrokdecode.h>
-#endif
+#include <cassert>
+#include <mutex>
+#include <stdexcept>
 
-#include "session.hpp"
+#include <sys/stat.h>
 
+#include "session.hpp"
 #include "devicemanager.hpp"
 
 #include "data/analog.hpp"
 #include "devices/hardwaredevice.hpp"
 #include "devices/sessionfile.hpp"
 
+#include "toolbars/mainbar.hpp"
+
 #include "view/analogsignal.hpp"
 #include "view/decodetrace.hpp"
 #include "view/logicsignal.hpp"
 #include "view/signal.hpp"
 #include "view/view.hpp"
 
-#include <cassert>
-#include <mutex>
-#include <stdexcept>
-
-#include <sys/stat.h>
-
-#include <QDebug>
-
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
+#ifdef ENABLE_DECODE
+#include <libsigrokdecode/libsigrokdecode.h>
+#endif
+
 using boost::shared_lock;
 using boost::shared_mutex;
 using boost::unique_lock;
@@ -96,8 +95,9 @@ using Glib::VariantBase;
 using Glib::Variant;
 
 namespace pv {
-Session::Session(DeviceManager &device_manager) :
+Session::Session(DeviceManager &device_manager, QString name) :
        device_manager_(device_manager),
+       name_(name),
        capture_state_(Stopped),
        cur_samplerate_(0)
 {
@@ -131,6 +131,142 @@ shared_ptr<devices::Device> Session::device() const
        return device_;
 }
 
+QString Session::name() const
+{
+       return name_;
+}
+
+void Session::set_name(QString name)
+{
+       if (default_name_.isEmpty())
+               default_name_ = name;
+
+       name_ = name;
+
+       name_changed();
+}
+
+std::shared_ptr<pv::view::View> Session::main_view() const
+{
+       return main_view_;
+}
+
+void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar)
+{
+       main_bar_ = main_bar;
+}
+
+shared_ptr<pv::toolbars::MainBar> Session::main_bar() const
+{
+       return main_bar_;
+}
+
+void Session::save_settings(QSettings &settings) const
+{
+       map<string, string> dev_info;
+       list<string> key_list;
+       int stacks = 0;
+
+       if (device_) {
+               settings.beginGroup("Device");
+               key_list.push_back("vendor");
+               key_list.push_back("model");
+               key_list.push_back("version");
+               key_list.push_back("serial_num");
+               key_list.push_back("connection_id");
+
+               dev_info = device_manager_.get_device_info(device_);
+
+               for (string key : key_list) {
+                       if (dev_info.count(key))
+                               settings.setValue(QString::fromUtf8(key.c_str()),
+                                               QString::fromUtf8(dev_info.at(key).c_str()));
+                       else
+                               settings.remove(QString::fromUtf8(key.c_str()));
+               }
+
+               // Save channels and decoders
+               for (shared_ptr<data::SignalBase> base : signalbases_) {
+#ifdef ENABLE_DECODE
+                       if (base->is_decode_signal()) {
+                               shared_ptr<pv::data::DecoderStack> decoder_stack =
+                                               base->decoder_stack();
+                               std::shared_ptr<data::decode::Decoder> top_decoder =
+                                               decoder_stack->stack().front();
+
+                               settings.beginGroup("decoder_stack" + QString::number(stacks++));
+                               settings.setValue("id", top_decoder->decoder()->id);
+                               settings.setValue("name", top_decoder->decoder()->name);
+                               settings.endGroup();
+                       } else
+#endif
+                       {
+                               settings.beginGroup(base->internal_name());
+                               base->save_settings(settings);
+                               settings.endGroup();
+                       }
+               }
+
+               settings.setValue("decoder_stacks", stacks);
+               settings.endGroup();
+       }
+}
+
+void Session::restore_settings(QSettings &settings)
+{
+       map<string, string> dev_info;
+       list<string> key_list;
+       shared_ptr<devices::HardwareDevice> device;
+
+       // Re-select last used device if possible but only if it's not demo
+       settings.beginGroup("Device");
+       key_list.push_back("vendor");
+       key_list.push_back("model");
+       key_list.push_back("version");
+       key_list.push_back("serial_num");
+       key_list.push_back("connection_id");
+
+       for (string key : key_list) {
+               const QString k = QString::fromStdString(key);
+               if (!settings.contains(k))
+                       continue;
+
+               const string value = settings.value(k).toString().toStdString();
+               if (!value.empty())
+                       dev_info.insert(std::make_pair(key, value));
+       }
+
+       if (dev_info.count("model") > 0)
+               device = device_manager_.find_device_from_info(dev_info);
+
+       if (device) {
+               set_device(device);
+
+               // Restore channels
+               for (shared_ptr<data::SignalBase> base : signalbases_) {
+                       settings.beginGroup(base->internal_name());
+                       base->restore_settings(settings);
+                       settings.endGroup();
+               }
+
+               // Restore decoders
+#ifdef ENABLE_DECODE
+               int stacks = settings.value("decoder_stacks").toInt();
+
+               for (int i = 0; i < stacks; i++) {
+                       settings.beginGroup("decoder_stack" + QString::number(i++));
+
+                       QString id = settings.value("id").toString();
+                       add_decoder(srd_decoder_get_by_id(id.toStdString().c_str()));
+
+                       settings.endGroup();
+               }
+#endif
+       }
+
+       settings.endGroup();
+}
+
 void Session::set_device(shared_ptr<devices::Device> device)
 {
        assert(device);
@@ -143,6 +279,10 @@ void Session::set_device(shared_ptr<devices::Device> device)
 
        device_.reset();
 
+       // Revert name back to default name (e.g. "Untitled-1") as the data is gone
+       name_ = default_name_;
+       name_changed();
+
        // Remove all stored data
        for (std::shared_ptr<pv::view::View> view : views_) {
                view->clear_signals();
@@ -171,7 +311,7 @@ void Session::set_device(shared_ptr<devices::Device> device)
                device_->open();
        } catch (const QString &e) {
                device_.reset();
-               device_selected();
+               device_changed();
                throw;
        }
 
@@ -181,7 +321,7 @@ void Session::set_device(shared_ptr<devices::Device> device)
                });
 
        update_signals();
-       device_selected();
+       device_changed();
 }
 
 void Session::set_default_device()
@@ -231,6 +371,10 @@ void Session::start_capture(function<void (const QString)> error_handler)
        for (const shared_ptr<data::SignalData> d : all_signal_data_)
                d->clear();
 
+       // Revert name back to default name (e.g. "Untitled-1") as the data is gone
+       name_ = default_name_;
+       name_changed();
+
        // Begin the session
        sampling_thread_ = std::thread(
                &Session::sample_thread_proc, this, error_handler);
@@ -248,12 +392,28 @@ void Session::stop_capture()
 
 void Session::register_view(std::shared_ptr<pv::view::View> view)
 {
+       if (views_.empty()) {
+               main_view_ = view;
+       }
+
        views_.insert(view);
 }
 
 void Session::deregister_view(std::shared_ptr<pv::view::View> view)
 {
        views_.erase(view);
+
+       if (views_.empty()) {
+               main_view_.reset();
+
+               // Without a view there can be no main bar
+               main_bar_.reset();
+       }
+}
+
+bool Session::has_view(std::shared_ptr<pv::view::View> view)
+{
+       return views_.find(view) != views_.end();
 }
 
 double Session::get_samplerate() const
@@ -318,6 +478,7 @@ bool Session::add_decoder(srd_decoder *const dec)
                        shared_ptr<data::SignalBase>(new data::SignalBase(nullptr));
 
                signalbase->set_decoder_stack(decoder_stack);
+               signalbases_.insert(signalbase);
 
                for (std::shared_ptr<pv::view::View> view : views_)
                        view->add_decode_trace(signalbase);