fixed compiler warnings

Author: jkriege2

doc/images/axisstyle/JKQTPCALTformat.png

@@ -12,7 +12,6 @@
 #include <QTextStream>
 #include "jkqtplotter/jkqtplotter.h"
 #include "jkqtplotter/graphs/jkqtpscatter.h"
-#include "jkqtplotter/graphs/jkqtpgeometric.h"
 #include "jkqtplotter/jkqtptools.h"
 #include "jkqtplotter/graphs/jkqtpfilledcurve.h"
 
@@ -29,18 +28,19 @@ void drawWithDateAxis(JKQTPlotter& plot) {
     // the second to fourth columns contain a floating-point number
     // with temperature average, min and max
     QFile file(":/weatherdata_gelsenkirchen.csv");
-    file.open(QFile::ReadOnly|QFile::Text);
-    file.readLine(); // eat comment
-    while (!file.atEnd()) {
-        QString line=file.readLine();
-        QTextStream in(&line);
-        QStringList items=line.split(";");
-        // date/time values are stored as doubles representing the corresponding number of milliseconds sind epoch
-        date<<QDateTime::fromString(items[0], Qt::ISODate).toUTC().toMSecsSinceEpoch();
-        // store Heidelbergs daily temperature
-        temperature<<items[1].toDouble();
-        temperature_min<<items[2].toDouble();
-        temperature_max<<items[3].toDouble();
+    if (file.open(QFile::ReadOnly|QFile::Text)) {
+        file.readLine(); // eat comment
+        while (!file.atEnd()) {
+            QString line=file.readLine();
+            QTextStream in(&line);
+            QStringList items=line.split(";");
+            // date/time values are stored as doubles representing the corresponding number of milliseconds sind epoch
+            date<<QDateTime::fromString(items[0], Qt::ISODate).toUTC().toMSecsSinceEpoch();
+            // store Heidelbergs daily temperature
+            temperature<<items[1].toDouble();
+            temperature_min<<items[2].toDouble();
+            temperature_max<<items[3].toDouble();
+        }
     }
 
     // 3. add a plot for the data mean line (graphTemperature) and range (graphTemperatureRange)
@@ -110,18 +110,19 @@ void drawWithTimeAxis(JKQTPlotter& plot) {
     // semicolon separated data. The first column is a time
     // the second contain a floating-point number with temperatures
     QFile file(":/weatherdata_heidelberg_2018-10-14.csv");
-    file.open(QFile::ReadOnly|QFile::Text);
-    file.readLine(); // eat comment
-    while (!file.atEnd()) {
-        QString line=file.readLine();
-        QTextStream in(&line);
-        QStringList items=line.split(";");
-        // date/time values are stored as doubles representing the corresponding
-        // number of milliseconds sind epoch. Since the data is time only, we have to use an arbitrary
-        // date as basis
-        time<<QDateTime::fromString("1970-01-01T"+items[0], Qt::ISODate).toMSecsSinceEpoch();
-        // store Heidelbergs daily temperature
-        temperature<<items[1].toDouble();
+    if (file.open(QFile::ReadOnly|QFile::Text)) {
+        file.readLine(); // eat comment
+        while (!file.atEnd()) {
+            QString line=file.readLine();
+            QTextStream in(&line);
+            QStringList items=line.split(";");
+            // date/time values are stored as doubles representing the corresponding
+            // number of milliseconds sind epoch. Since the data is time only, we have to use an arbitrary
+            // date as basis
+            time<<QDateTime::fromString("1970-01-01T"+items[0], Qt::ISODate).toMSecsSinceEpoch();
+            // store Heidelbergs daily temperature
+            temperature<<items[1].toDouble();
+        }
     }
 
     // 3. add a plot for the data mean line (graphTemperature) and range (graphTemperatureRange)

examples/dateaxes/dateaxes.cpp

@@ -148,7 +148,7 @@ void MandelbrotMainWindow::calculateMandelSet(double rmin, double rmax, double i
 
     std::vector<std::thread> threads;
     for (size_t offset=0; offset<width*height; offset+=blocksize) {
-        threads.push_back(std::thread([=](){
+        threads.push_back(std::thread([ds,this,offset,blocksize,rmin, rmax, imin, imax, width, height, max_iterations](){
             // start iterating at begin+offset
             auto pix=ds->begin(mandelbrot_col)+static_cast<int>(offset);
             // stop iterating at begin+offset+blocksize, or at the end

examples/mandelbrot/mandelbrotmainwindow.cpp

@@ -322,12 +322,12 @@ JKQTBasePlotter::~JKQTBasePlotter(){
     delete mainKey;
     delete xAxis;
     delete yAxis;
-    for (const auto& ax: qAsConst(secondaryYAxis)) {
-        delete ax;
+    for (auto it=secondaryYAxis.begin(); it!=secondaryYAxis.end(); ++it) {
+        delete it.value();
     }
     secondaryYAxis.clear();
-    for (const auto& ax: qAsConst(secondaryXAxis)) {
-        delete ax;
+    for (auto it=secondaryXAxis.begin(); it!=secondaryXAxis.end(); ++it) {
+        delete it.value();
     }
     secondaryXAxis.clear();
 
@@ -932,15 +932,16 @@ void JKQTBasePlotter::calcPlotScaling(JKQTPEnhancedPainter& painter){
         if (s.elongateMax>0) elongateTop=qMin(elongateTop,s.elongateMax);
         internalPlotMargins[PlotMarginUse::muAxesOutside].right+=s.requiredSize;
 
-
         // read size required by secondary axes
-        for (const auto& ax: qAsConst(secondaryYAxis)) {
+        for (auto it=secondaryYAxis.begin(); it!=secondaryYAxis.end(); ++it) {
+            auto ax= it.value();
             const auto s1=ax->getSize1(painter);
             const auto s2=ax->getSize2(painter);
             internalPlotMargins[PlotMarginUse::muAxesOutside].left+=s1.requiredSize+((fabs(s1.requiredSize)>0.1)?pt2px(painter, plotterStyle.secondaryAxisSeparation):0.0);
             internalPlotMargins[PlotMarginUse::muAxesOutside].right+=s2.requiredSize+((fabs(s2.requiredSize)>0.1)?pt2px(painter, plotterStyle.secondaryAxisSeparation):0.0);
         }
-        for (const auto& ax: qAsConst(secondaryXAxis)) {
+        for (auto it=secondaryXAxis.begin(); it!=secondaryXAxis.end(); ++it) {
+            auto ax= it.value();
             const auto s1=ax->getSize1(painter);
             const auto s2=ax->getSize2(painter);
             internalPlotMargins[PlotMarginUse::muAxesOutside].bottom+=s1.requiredSize+((fabs(s1.requiredSize)>0.1)?pt2px(painter, plotterStyle.secondaryAxisSeparation):0.0);
@@ -3729,7 +3730,7 @@ bool JKQTBasePlotter::saveImage(const QString& filename, bool displayPreview) {
 #else
                 QSharedPointer<QTemporaryFile> tf=QSharedPointer<QTemporaryFile>(new QTemporaryFile());
 #endif
-                tf->open();
+                const bool ok=tf->open();
                 tempFM=tf->fileName();
                 tf->close();
                 tf.reset();