Graph height calculation tweaks

sleepyhead/Graphs/gGraphView.cpp

@@ -562,6 +562,22 @@ float gGraphView::scaleHeight()
     return ceil(th);
 }
 
+void gGraphView::updateScale()
+{
+    float th = totalHeight(); // height of all graphs
+    float h = height();     // height of main widget
+
+    if (th < h) {
+        th -= visibleGraphs() * graphSpacer;   // compensate for spacer height
+        m_scaleY = h / th;  // less graphs than fits on screen, so scale to fit
+    } else {
+        m_scaleY = 1.0;
+    }
+
+    updateScrollBar();
+}
+
+
 void gGraphView::resizeEvent(QResizeEvent *e)
 {
     QWidget::resizeEvent(e); // This ques a redraw event..
@@ -717,20 +733,6 @@ void gGraphView::SetXBounds(qint64 minx, qint64 maxx, short group, bool refresh)
     if (refresh) { redraw(); }
 }
 
-void gGraphView::updateScale()
-{
-    float th = totalHeight(); // height of all graphs
-    float h = height();     // height of main widget
-
-    if (th < h) {
-        m_scaleY = h / th;  // less graphs than fits on screen, so scale to fit
-    } else {
-        m_scaleY = 1.0;
-    }
-
-    updateScrollBar();
-}
-
 void gGraphView::updateScrollBar()
 {
     if (!m_scrollbar || (m_graphs.size() == 0)) {

sleepyhead/Graphs/gXAxis.cpp

@@ -19,11 +19,12 @@
 #include "Graphs/gGraph.h"
 #include "Graphs/gGraphView.h"
 
+// These divisors are used to round xaxis timestamps to reasonable increments
 const quint64 divisors[] = {
     15552000000ULL, 7776000000ULL, 5184000000ULL, 2419200000ULL, 1814400000ULL, 1209600000L, 604800000L, 259200000L,
     172800000L, 86400000, 2880000, 14400000, 7200000, 3600000, 2700000,
     1800000, 1200000, 900000, 600000, 300000, 120000, 60000, 45000, 30000,
-    20000, 15000, 10000, 5000, 2000, 1000, 100, 50, 10
+    20000, 15000, 10000, 5000, 2000, 1000, 100, 50, 10, 1
 };
 const int divcnt = sizeof(divisors) / sizeof(quint64);
 
@@ -40,13 +41,6 @@ gXAxis::gXAxis(QColor col, bool fadeout)
     m_show_major_ticks = true;
     m_utcfix = false;
     m_fadeout = fadeout;
-    //    QDateTime d=QDateTime::currentDateTime();
-    //    QTime t1=d.time();
-    //    QTime t2=d.toUTC().time();
-
-    //    tz_offset=t2.secsTo(t1);
-    //    tz_hours=tz_offset/3600.0;
-    //    tz_offset*=1000L;
 
     tz_offset = timezoneOffset();
     tz_hours = tz_offset / 3600000.0;
@@ -70,6 +64,7 @@ void gXAxis::paint(QPainter &painter, gGraph &w, const QRegion &region)
 
     QVector<QLine> ticks;
 
+
     QPainter painter2; // Only need this for pixmap caching
 
     // pixmap caching screws font size when printing
@@ -77,8 +72,10 @@ void gXAxis::paint(QPainter &painter, gGraph &w, const QRegion &region)
     bool usepixmap = w.graphView()->usePixmapCache(); // Whether or not to use pixmap caching
 
     if (!usepixmap || (usepixmap && w.invalidate_xAxisImage)) {
+        // Redraw graph xaxis labels and ticks either to pixmap or directly to screen
 
         if (usepixmap) {
+            // Initialize a new cache image
             m_image = QImage(width + 22, height + 4, QImage::Format_ARGB32_Premultiplied);
             m_image.fill(Qt::transparent);
             painter2.begin(&m_image);
@@ -101,22 +98,29 @@ void gXAxis::paint(QPainter &painter, gGraph &w, const QRegion &region)
         qint64 maxx;
 
         if (w.blockZoom()) {
+            // Lock zoom to entire data range
             minx = w.rmin_x;
             maxx = w.rmax_x;
         } else {
+            // Allow zoom
             minx = w.min_x;
             maxx = w.max_x;
         }
 
+        // duration of graph display window in milliseconds.
         qint64 xx = maxx - minx;
 
-        if (xx <= 0) { return; }
+        // shouldn't really be negative, but this is safer than an assert
+        if (xx <= 0) {
+            return;
+        }
 
         //Most of this could be precalculated when min/max is set..
         QString fd, tmpstr;
         int divmax, dividx;
         int fitmode;
 
+        // Have a quick look at the scale and prep the autoscaler a little faster
         if (xx >= 86400000L) {       // Day
             fd = "Mjj 00";
             dividx = 0;
@@ -130,7 +134,7 @@ void gXAxis::paint(QPainter &painter, gGraph &w, const QRegion &region)
         } else if (xx > 5000) {    // Seconds
             fd = " j0:00:00";
             dividx = 16;
-            divmax = 27;
+            divmax = 29;
             fitmode = 2;
         } else {                   // Microseconds
             fd = "j0:00:00:000";
@@ -142,19 +146,27 @@ void gXAxis::paint(QPainter &painter, gGraph &w, const QRegion &region)
         //if (divmax>divcnt) divmax=divcnt;
 
         int x, y;
+        // grab the text extent of the dummy text fields above to know how much space is needed
         GetTextExtent(fd, x, y);
 
-        if (x <= 0) {
-            qWarning() << "gXAxis::Plot() x<=0 font size bug";
-            return;
-        }
+        // Not sure when this was a problem...
+        Q_ASSERT(x > 0);
+//        if (x <= 0) {
+//            qWarning() << "gXAxis::Plot() x<=0 font size bug";
+//            return;
+//        }
 
-        int max_ticks = width / (x + 15); // Max number of ticks that will fit
+
+        // Max number of ticks that will fit, with a bit of room for a buffer
+        int max_ticks = width / (x + 15);
 
         int fit_ticks = 0;
         int div = -1;
         qint64 closest = 0, tmp, tmpft;
 
+        // Scan through divisor list with the index range given above, to find which
+        // gives the closest number of ticks to the maximum that will physically fit
+
         for (int i = dividx; i < divmax; i++) {
             tmpft = xx / divisors[i];
             tmp = max_ticks - tmpft;

sleepyhead/SleepLib/loader_plugins/cms50_loader.cpp

@@ -340,7 +340,8 @@ void CMS50Loader::killTimers()
 
 void CMS50Loader::startImportTimeout()
 {
-    Q_ASSERT(m_streaming == true);
+    if (!m_streaming)
+        return;
 
     if (started_import) {
         return;

sleepyhead/oximeterimport.cpp

@@ -355,6 +355,11 @@ void OximeterImport::on_liveImportButton_clicked()
     ui->calendarWidget->setMinimumDate(PROFILE.FirstDay());
     ui->calendarWidget->setMaximumDate(PROFILE.LastDay());
 
+    plethyGraph->SetMinX(start_ti);
+
+    plethyGraph->setBlockZoom(false);
+
+
     // detect oximeter
 }
 
@@ -487,8 +492,9 @@ void OximeterImport::updateLiveDisplay()
     plethyChart->setMaxY(ELplethy->Max());
     plethyGraph->SetMinY(ELplethy->Min());
     plethyGraph->SetMaxY(ELplethy->Max());
-    plethyGraph->SetMinX(start_ti);
+    plethyGraph->SetMinX(sti);
     plethyGraph->SetMaxX(ti);
+    plethyGraph->setBlockZoom(true);
     ELplethy->setLast(ti);
     session->really_set_last(ti);
 

sleepyhead/oximeterimport.ui

@@ -984,6 +984,12 @@ p, li { white-space: pre-wrap; }
           <layout class="QHBoxLayout" name="horizontalLayout_10">
            <item>
             <widget class="QGroupBox" name="groupBox_2">
+             <property name="sizePolicy">
+              <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+               <horstretch>0</horstretch>
+               <verstretch>0</verstretch>
+              </sizepolicy>
+             </property>
              <property name="title">
               <string>Day recording (normally would of) started</string>
              </property>
@@ -1008,6 +1014,12 @@ p, li { white-space: pre-wrap; }
            </item>
            <item>
             <widget class="QGroupBox" name="groupBox_3">
+             <property name="sizePolicy">
+              <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+               <horstretch>1</horstretch>
+               <verstretch>0</verstretch>
+              </sizepolicy>
+             </property>
              <property name="title">
               <string>Oximeter Starting time</string>
              </property>