Use double in markers to cover the entire range of positions allowable in QML

Author: Cuperino

src/marker.hpp

@@ -26,20 +26,20 @@
 
 struct Marker {
     Q_GADGET
-    Q_PROPERTY(int position MEMBER position)
+    Q_PROPERTY(double position MEMBER position)
     Q_PROPERTY(int length MEMBER length)
     Q_PROPERTY(QString url MEMBER url)
 public:
     Marker() {
         position = 0;
     };
-    explicit Marker(int p)
+    explicit Marker(double p)
     {
         position = p;
     };
     // Contents
     QString text;
-    int position = 0;
+    double position = 0;
     int length = 1;
     int key = 0;
     QString keyLetter;

src/markersmodel.cpp

@@ -138,16 +138,16 @@ int MarkersModel::keySearch(int key, int currentPosition = 0, bool reverse = fal
 }
 
 // Custom Recursive Binary Search: Returns most proximate element in a given direction when searched element is not found.
-Marker MarkersModel::binarySearch(const int l, const int r, const int goalPosition, const bool reverse = false)
+Marker MarkersModel::binarySearch(const double l, const double r, const double goalPosition, const bool reverse = false)
 {
     // qDebug() << "search in progress";
     if (r >= l) {
         // qDebug() << "l: " << l << ", r: " << r << ", gp: " << goalPosition;
 
         // Binary search
-        const int mid = l + (r - l) / 2;
+        const double mid = l + (r - l) / 2;
 
-        const int aimValue = m_data.at(mid).position;
+        const double aimValue = m_data.at(mid).position;
         // Base case
         if (aimValue == goalPosition) {
             // If last element
@@ -192,7 +192,7 @@ Marker MarkersModel::binarySearch(const int l, const int r, const int goalPositi
         return m_data.at(l);
 }
 
-Marker MarkersModel::nextMarker(int position)
+Marker MarkersModel::nextMarker(double position)
 {
     // qDebug() << Qt::endl;
     const int size = rowCount();
@@ -204,7 +204,7 @@ Marker MarkersModel::nextMarker(int position)
     return invalidPositionMarker; // -1
 }
 
-Marker MarkersModel::previousMarker(int position)
+Marker MarkersModel::previousMarker(double position)
 {
     // qDebug() << Qt::endl;
     const int size = rowCount();

src/markersmodel.h

@@ -60,8 +60,8 @@ class MarkersModel : public QAbstractListModel
     void clearMarkers();
     void appendMarker(const Marker &marker);
     void removeMarker(int row);
-    Marker previousMarker(int position);
-    Marker nextMarker(int position);
+    Marker previousMarker(double position);
+    Marker nextMarker(double position);
     int keySearch(int key, int currentPosition, bool reverse, bool wrap);
 
     // void updateMarker(int row);
@@ -75,7 +75,7 @@ private Q_SLOTS:
 #else
     void resetInternalData();
 #endif
-    Marker binarySearch(const int lo, const int hi, const int x, const bool reverse);
+    Marker binarySearch(const double l, const double r, const double goalPosition, const bool reverse);
 };
 
 #endif // MARKERSMODEL_H