Save/Restore Overview column widths

Fixes #4007.

src/Charts/Overview.cpp

@@ -104,6 +104,20 @@ OverviewWindow::getConfiguration() const
 
     // setup
     config = "{\n  \"version\":\"2.0\",\n";
+    config += "  \"widths\":[";
+
+    // column widths
+    bool first=true;
+    foreach(int n, space->columnWidths()) {
+
+        // last one doesn't have a comma
+        if (!first) config += ",";
+        else first=false;
+
+        config += QString(" %1").arg(n);
+    }
+    config += " ],\n";
+
     config += "  \"CHARTS\":[\n";
 
     // do cards
@@ -290,6 +304,15 @@ OverviewWindow::setConfiguration(QString config)
         goto defaultsetup;
     }
 
+    // does it contain widths (we added this later)
+    if (root.contains("widths")) {
+
+        QVector<int> widths;
+        QJsonArray w = root["widths"].toArray();
+        foreach(const QJsonValue width, w) widths << width.toInt();
+        space->setColumnWidths(widths);
+    }
+
     // cards
     QJsonArray CHARTS = root["CHARTS"].toArray();
     foreach(const QJsonValue val, CHARTS) {

src/Gui/ChartSpace.h

@@ -197,6 +197,10 @@ class ChartSpace : public QWidget
         void dateRangeChanged(DateRange);
         void filterChanged();
 
+        // column sizing
+        QVector<int> columnWidths() { return columns; }
+        void setColumnWidths(QVector<int> x) { columns =x; updateGeometry(); }
+
         // for smooth scrolling
         void setViewY(int x) { if (_viewY != x) {_viewY =x; updateView();} }
         int getViewY() const { return _viewY; }