Prevent handle and label overlap (#7)

* cov changes

* mostly good

* remove cov

* use int

* fix

* prevent label overlap

qtrangeslider/_float_slider.py

@@ -63,7 +63,7 @@ class QDoubleSlider(_HookedSlider):
         return self.value() * p
 
     def _post_get_hook(self, value: int) -> float:
-        return value / self._multiplier
+        return float(value / self._multiplier)
 
     def _pre_set_hook(self, value: float) -> int:
         return int(value * self._multiplier)

qtrangeslider/_hooked.py

@@ -8,42 +8,35 @@ class _HookedSlider(QSlider):
     def _pre_set_hook(self, value):
         return value
 
-    def value(self) -> float:  # type: ignore[override]
-        return float(self._post_get_hook(super().value()))
+    def value(self):
+        return self._post_get_hook(super().value())
 
-    def setValue(self, value: float) -> None:
+    def setValue(self, value) -> None:
         super().setValue(self._pre_set_hook(value))
 
-    def minimum(self) -> float:  # type: ignore[override]
+    def minimum(self):
         return self._post_get_hook(super().minimum())
 
-    def setMinimum(self, minimum: float):
+    def setMinimum(self, minimum):
         super().setMinimum(self._pre_set_hook(minimum))
 
-    def maximum(self) -> float:  # type: ignore[override]
+    def maximum(self):
         return self._post_get_hook(super().maximum())
 
-    def setMaximum(self, maximum: float):
+    def setMaximum(self, maximum):
         super().setMaximum(self._pre_set_hook(maximum))
 
-    def singleStep(self) -> float:  # type: ignore[override]
+    def singleStep(self):
         return self._post_get_hook(super().singleStep())
 
-    def setSingleStep(self, step: float):
+    def setSingleStep(self, step):
         super().setSingleStep(self._pre_set_hook(step))
 
-    def pageStep(self) -> float:  # type: ignore[override]
+    def pageStep(self):
         return self._post_get_hook(super().pageStep())
 
-    def setPageStep(self, step: float) -> None:
+    def setPageStep(self, step) -> None:
         super().setPageStep(self._pre_set_hook(step))
 
     def setRange(self, min: float, max: float) -> None:
         super().setRange(self._pre_set_hook(min), self._pre_set_hook(max))
-
-    # def sliderChange(self, change) -> None:
-    #     if change == QSlider.SliderValueChange:
-    #         self.valueChanged.emit(self.value())
-    #     if change == QSlider.SliderRangeChange:
-    #         self.rangeChanged.emit(self.minimum(), self.maximum())
-    #     return super().sliderChange(change)

qtrangeslider/_labeled.py

@@ -235,6 +235,7 @@ class QLabeledRangeSlider(SliderProxy, QAbstractSlider):
         horizontal = self.orientation() == Qt.Horizontal
         labels_above = self._handle_label_position == LabelPosition.LabelsAbove
 
+        last_edge = None
         for label, rect in zip(self._handle_labels, self._slider._handleRects()):
             dx = -label.width() / 2
             dy = -label.height() / 2
@@ -250,7 +251,14 @@ class QLabeledRangeSlider(SliderProxy, QAbstractSlider):
                     dx *= 3
             pos = self._slider.mapToParent(rect.center())
             pos += QPoint(int(dx + self.label_shift_x), int(dy + self.label_shift_y))
+            if last_edge is not None:
+                # prevent label overlap
+                if horizontal:
+                    pos.setX(int(max(pos.x(), last_edge.x() + label.width() / 2 + 12)))
+                else:
+                    pos.setY(int(min(pos.y(), last_edge.y() - label.height() / 2 - 4)))
             label.move(pos)
+            last_edge = pos
             label.clearFocus()
 
     def _min_label_edited(self, val):

qtrangeslider/_qrangeslider.py

@@ -69,6 +69,8 @@ class QRangeSlider(_HookedSlider, QSlider):
         self._repeatMultiplier = 1  # TODO
         # for wheel nav
         self._offset_accum = 0
+        # fraction of total range to scroll when holding Ctrl while scrolling
+        self._control_fraction = 0.04
 
         # color
         self._style = RangeSliderStyle()
@@ -483,11 +485,12 @@ class QRangeSlider(_HookedSlider, QSlider):
 
     def _neighbor_bound(self, val: int, index: int, _lst: List[int]) -> int:
         # make sure we don't go lower than any preceding index:
+        min_dist = self._post_get_hook(self.singleStep())
         if index > 0:
-            val = max(_lst[index - 1], val)
+            val = max(_lst[index - 1] + min_dist, val)
         # make sure we don't go higher than any following index:
-        if index < len(_lst) - 1:
-            val = min(_lst[index + 1], val)
+        if index < (len(_lst) - 1):
+            val = min(_lst[index + 1] - min_dist, val)
         return val
 
     def wheelEvent(self, e: QtGui.QWheelEvent) -> None:
@@ -509,10 +512,17 @@ class QRangeSlider(_HookedSlider, QSlider):
         if orientation == Qt.Horizontal:
             delta *= -1
         offset = delta / 120
-        if modifiers & Qt.ControlModifier or modifiers & Qt.ShiftModifier:
+        if modifiers & Qt.ShiftModifier:
             # Scroll one page regardless of delta:
             steps_to_scroll = _bound(-pg_step, pg_step, int(offset * pg_step))
             self._offset_accum = 0
+        elif modifiers & Qt.ControlModifier:
+            # Scroll one page regardless of delta:
+            _range = self._pre_set_hook(self.maximum()) - self._pre_set_hook(
+                self.minimum()
+            )
+            steps_to_scroll = offset * _range * self._control_fraction
+            self._offset_accum = 0
         else:
             # Calculate how many lines to scroll. Depending on what delta is (and
             # offset), we might end up with a fraction (e.g. scroll 1.3 lines). We can