From 6cb33f3293164d93b608feab0d295b06743e0699 Mon Sep 17 00:00:00 2001
From: Mark Watkins <jedimark@users.sourceforge.net>
Date: Tue, 13 Dec 2011 22:49:48 +1000
Subject: [PATCH] File dialog fixes, Weighted average fix

---
 Graphs/gSummaryChart.cpp |  2 +-
 SleepLib/calcs.cpp       | 18 +++++++++++++-----
 SleepLib/session.cpp     | 22 ++++++++++++++++------
 mainwindow.cpp           |  9 ++++++++-
 4 files changed, 38 insertions(+), 13 deletions(-)

diff --git a/Graphs/gSummaryChart.cpp b/Graphs/gSummaryChart.cpp
index db3c9422..50c5f331 100644
--- a/Graphs/gSummaryChart.cpp
+++ b/Graphs/gSummaryChart.cpp
@@ -134,7 +134,7 @@ void SummaryChart::SetDay(Day * nullday)
                             day->settingExists(code) ||
                             day->hasData(code,type);
 
-                    if (code==CPAP_RespRate) {
+                    if (code==CPAP_AHI) {
                         int i=5;
                     }
                     if (hascode) {
diff --git a/SleepLib/calcs.cpp b/SleepLib/calcs.cpp
index 5edd4d9f..257cd1ea 100644
--- a/SleepLib/calcs.cpp
+++ b/SleepLib/calcs.cpp
@@ -437,6 +437,10 @@ EventDataType calcAHI(Session *session,qint64 start, qint64 end)
 
 int calcAHIGraph(Session *session)
 {
+    const qint64 window_size=3600000L;
+    const qint64 window_step=30000; // 30 second windows
+
+
     if (session->machine()->GetType()!=MT_CPAP) return 0;
     if (session->eventlist.contains(CPAP_AHI)) return 0; // abort if already there
 
@@ -445,8 +449,6 @@ int calcAHIGraph(Session *session)
             !session->channelExists(CPAP_Apnea) &&
             !session->channelExists(CPAP_ClearAirway)) return 0;
 
-    const qint64 winsize=30000; // 30 second windows
-
     qint64 first=session->first(),
            last=session->last(),
            f;
@@ -457,17 +459,23 @@ int calcAHIGraph(Session *session)
     EventDataType ahi;
 
     qint64 ti;
-    for (ti=first;ti<last;ti+=winsize) {
-        f=ti-3600000L;
+    double avg=0;
+    int cnt=0;
+    for (ti=first;ti<last;ti+=window_step) {
+        f=ti-window_size;
         ahi=calcAHI(session,f,ti);
         if  (ti>=last) {
             AHI->AddEvent(last,ahi);
+            avg+=ahi;
+            cnt++;
             break;
         }
         AHI->AddEvent(ti,ahi);
-        ti+=winsize;
+        ti+=window_step;
     }
     AHI->AddEvent(last,0);
+    if (!cnt) avg=0; else avg/=double(cnt);
+    session->setAvg(CPAP_AHI,avg);
 
     return AHI->count();
 }
diff --git a/SleepLib/session.cpp b/SleepLib/session.cpp
index a4a19de3..2eabc27e 100644
--- a/SleepLib/session.cpp
+++ b/SleepLib/session.cpp
@@ -463,6 +463,9 @@ void Session::UpdateSummaries()
     QHash<ChannelID,QVector<EventList *> >::iterator c;
     for (c=eventlist.begin();c!=eventlist.end();c++) {
         id=c.key();
+        if (id==CPAP_AHI) {
+            int i=5;
+        }
         if (schema::channel[id].type()==schema::DATA) {
             //sum(id); // avg calculates this and cnt.
             min(id);
@@ -860,6 +863,7 @@ EventDataType Session::percentile(ChannelID id,EventDataType percent)
 
 EventDataType Session::wavg(ChannelID id)
 {
+    QHash<EventStoreType,quint32> vtime;
     QHash<ChannelID,EventDataType>::iterator i=m_wavg.find(id);
     if (i!=m_wavg.end())
         return i.value();
@@ -876,9 +880,9 @@ EventDataType Session::wavg(ChannelID id)
     qint64 lasttime=0,time,td;
     EventStoreType val,lastval=0;
 
-    QHash<EventStoreType,quint32> vtime;
 
     EventDataType gain=evec[0]->gain();
+    EventStoreType minval;
 
     for (int i=0;i<size;i++) {
         if (!evec[i]->count()) continue;
@@ -895,13 +899,16 @@ EventDataType Session::wavg(ChannelID id)
             lasttime=time;
             lastval=val;
         }*/
-
+        if (id==CPAP_AHI) {
+            int i=5;
+        }
         time=evec[i]->time(0)/1000L;
-        val=evec[i]->raw(0);
+        minval=val=evec[i]->raw(0);
         for (quint32 j=1;j<evec[i]->count();j++) {
             lastval=val;
             lasttime=time;
             val=evec[i]->raw(j);
+            if (val<minval) minval=val;
             time=evec[i]->time(j)/1000L;
             td=(time-lasttime);
             if (vtime.contains(lastval)) {
@@ -909,7 +916,7 @@ EventDataType Session::wavg(ChannelID id)
             } else vtime[lastval]=td;
         }
         if (lasttime>0) {
-            td=last()-time;
+            td=(last()/1000L)-time;
             if (vtime.contains(val)) {
                 vtime[val]+=td;
             } else vtime[val]=td;
@@ -920,10 +927,13 @@ EventDataType Session::wavg(ChannelID id)
     if (id==CPAP_Snore) {
         int i=5;
     }
+    if (minval<0) minval=-minval;
+    minval++;
+   // if (minval<0) minval+=(0-minval)+1; else minval=1;
     qint64 s0=0,s1=0,s2=0,s3=0; // 32bit may all be thats needed here..
     for (QHash<EventStoreType,quint32>::iterator i=vtime.begin(); i!=vtime.end(); i++) {
        s0=i.value();
-       s3=i.key()+1;
+       s3=i.key()+minval;
        s1+=s3*s0;
        s2+=s0;
     }
@@ -931,7 +941,7 @@ EventDataType Session::wavg(ChannelID id)
         return m_wavg[id]=0;
     }
     double j=double(s1)/double(s2);
-    j-=1;
+    j-=minval;
     EventDataType v=j*gain;
     if (v>32768*gain) {
         v=0;
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 0268e9ce..dca83989 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -269,8 +269,14 @@ void MainWindow::on_action_Import_Data_triggered()
 
     if (asknew) {
         QFileDialog w;
-        w.setFileMode(QFileDialog::DirectoryOnly);
+        w.setFileMode(QFileDialog::Directory);
+        w.setOption(QFileDialog::ShowDirsOnly, true);
+
+#if defined(Q_WS_MAC) && (QT_VERSION_CHECK(4,8,0) > QT_VERSION)
+        // Fix for tetragon, 10.6 barfs up Qt's custom dialog
         w.setOption(QFileDialog::DontUseNativeDialog,true);
+#else
+        w.setOption(QFileDialog::DontUseNativeDialog,false);
 
         QListView *l = w.findChild<QListView*>("listView");
         if (l) {
@@ -280,6 +286,7 @@ void MainWindow::on_action_Import_Data_triggered()
         if (t) {
             t->setSelectionMode(QAbstractItemView::MultiSelection);
         }
+#endif
         if (w.exec()!=QDialog::Accepted) {
             return;
         }