From bd04ee5a5e096003d84943a30c916e68df2ca467 Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Thu, 24 Jun 2021 22:52:20 +0200
Subject: [PATCH] GLScopeGUI: effective implementation of stream input
 selection. Fixes #872

---
 sdrgui/gui/glscopegui.cpp | 57 +++++++++++++++++++++++++++++++++++++++
 sdrgui/gui/glscopegui.h   |  4 +++
 2 files changed, 61 insertions(+)

diff --git a/sdrgui/gui/glscopegui.cpp b/sdrgui/gui/glscopegui.cpp
index 1700dd439..970735a16 100644
--- a/sdrgui/gui/glscopegui.cpp
+++ b/sdrgui/gui/glscopegui.cpp
@@ -435,6 +435,51 @@ bool GLScopeGUI::deserialize(const QByteArray& data)
     }
 }
 
+void GLScopeGUI::setNbStreams(unsigned int nbStreams)
+{
+    QStringList streamNames;
+
+    for (unsigned int s = 0; s < nbStreams; s++) {
+        streamNames.append(tr("%1").arg(s));
+    }
+
+    setStreams(streamNames);
+}
+
+void GLScopeGUI::setStreams(const QStringList& streamNames)
+{
+    int traceStreamIndex = ui->traceStream->currentIndex();
+    int triggerStreamIndex = ui->trigStream->currentIndex();
+    ui->traceStream->blockSignals(true);
+    ui->trigStream->blockSignals(true);
+    ui->traceStream->clear();
+    ui->trigStream->clear();
+
+    for (QString s : streamNames)
+    {
+        ui->traceStream->addItem(s);
+        ui->trigStream->addItem(s);
+    }
+
+    int newTraceStreamIndex = traceStreamIndex < streamNames.size() ? traceStreamIndex : streamNames.size() - 1;
+    int newTriggerStreamIndex = triggerStreamIndex < streamNames.size() ? triggerStreamIndex: streamNames.size() - 1;
+
+    ui->traceStream->setCurrentIndex(newTraceStreamIndex);
+
+    if (newTraceStreamIndex != traceStreamIndex) {
+        changeCurrentTrace();
+    }
+
+    ui->trigStream->setCurrentIndex(newTriggerStreamIndex);
+
+    if (newTriggerStreamIndex != triggerStreamIndex) {
+        changeCurrentTrigger();
+    }
+
+    ui->traceStream->blockSignals(false);
+    ui->trigStream->blockSignals(false);
+}
+
 void GLScopeGUI::on_onlyX_toggled(bool checked)
 {
     if (checked)
@@ -806,6 +851,12 @@ void GLScopeGUI::on_trigDown_clicked(bool checked)
     }
 }
 
+void GLScopeGUI::on_traceStream_currentIndexChanged(int index)
+{
+    (void) index;
+    changeCurrentTrace();
+}
+
 void GLScopeGUI::on_traceMode_currentIndexChanged(int index)
 {
     (void) index;
@@ -936,6 +987,12 @@ void GLScopeGUI::on_mem_valueChanged(int value)
    	m_scopeVis->setMemoryIndex(value);
 }
 
+void GLScopeGUI::on_trigStream_currentIndexChanged(int index)
+{
+    (void) index;
+    changeCurrentTrigger();
+}
+
 void GLScopeGUI::on_trigMode_currentIndexChanged(int index)
 {
     (void) index;
diff --git a/sdrgui/gui/glscopegui.h b/sdrgui/gui/glscopegui.h
index db7550bb9..8bb420fdf 100644
--- a/sdrgui/gui/glscopegui.h
+++ b/sdrgui/gui/glscopegui.h
@@ -53,6 +53,8 @@ public:
     bool handleMessage(Message* message);
     unsigned int getNbTraces() const { return m_settings.m_tracesData.size(); }
     unsigned int getNbTriggers() const { return m_settings.m_triggersData.size(); }
+    void setNbStreams(unsigned int nbStreams); //!< Set number of streams with default names (indexes)
+    void setStreams(const QStringList& streamNames); //!< Give streans by their names in a list
 
     // preconfiguration methods
     // global (first line):
@@ -217,6 +219,7 @@ private slots:
     void on_traceDel_clicked(bool checked);
     void on_traceUp_clicked(bool checked);
     void on_traceDown_clicked(bool checked);
+    void on_traceStream_currentIndexChanged(int index);
     void on_traceMode_currentIndexChanged(int index);
     void on_amp_valueChanged(int value);
     void on_ofsCoarse_valueChanged(int value);
@@ -234,6 +237,7 @@ private slots:
     void on_trigDel_clicked(bool checked);
     void on_trigUp_clicked(bool checked);
     void on_trigDown_clicked(bool checked);
+    void on_trigStream_currentIndexChanged(int index);
     void on_trigMode_currentIndexChanged(int index);
     void on_trigCount_valueChanged(int value);
     void on_trigPos_toggled(bool checked);