Add level distribution chart, more adjustments

include/ui/wildmonchart.h

@@ -4,6 +4,7 @@
 #include "encountertablemodel.h"
 
 #include <QWidget>
+#include <QtCharts>
 
 namespace Ui {
 class WildMonChart;
@@ -18,11 +19,40 @@ public:
 
 public slots:
     void setTable(const EncounterTableModel *table);
-    void updateChart();
+    void createCharts();
 
 private:
     Ui::WildMonChart *ui;
     const EncounterTableModel *table;
+
+    QStringList groupNames;
+    QMap<int, QString> tableIndexToGroupName;
+
+    struct Summary {
+        double speciesFrequency = 0.0;
+        QMap<int, double> levelFrequencies;
+    };
+
+    int tableMinLevel;
+    int tableMaxLevel;
+
+    // GroupedData maps a group name ("old_rod", "good_rod"...)
+    // to any summarized data needed for the charts.
+    typedef QMap<QString, Summary> GroupedData;
+
+    QMap<QString, GroupedData> speciesToGroupedData;
+
+    QStringList getSpeciesNames() const;
+    double getSpeciesFrequency(const QString&, const QString&) const;
+    QMap<int, double> getLevelFrequencies(const QString &, const QString &) const;
+    bool usesGroupLabels() const;
+
+    void clearTableData();
+    void readTable();
+    void createSpeciesDistributionChart();
+    void createLevelDistributionChart();
+
+    void stopChartAnimation();
 };
 
 #endif // WILDMONCHART_H