164 lvlptr mouse move (#189)

* LvlPtr selecting works

* LvlPtr selecting works

iosc/const.py

@@ -15,7 +15,8 @@
 # (moved)
 FONT_TOPBAR = QFont('mono', 8)  # font of timeline ticks labels
 FONT_DND = FONT_TOPBAR
-CURSOR_PTR = Qt.SplitHCursor
+CURSOR_PTR_V = Qt.SplitHCursor
+CURSOR_PTR_H = Qt.SplitVCursor
 COLOR_LABEL_Z = Qt.black
 BRUSH_LABEL_Z = QBrush(Qt.white)
 COLOR_LABEL_X = Qt.white  # top xPtr label font color

iosc/core/mycomtrade.py

@@ -123,7 +123,7 @@ def v_max(self) -> float:
 
     def get_mult(self, ps: bool) -> float:
         """
-        Get multiplier
+        Get multiplier between pri/sec
         :param ps:
         :return: Multiplier
         """

iosc/sig/widget/ptr.py

@@ -80,7 +80,7 @@ def i(self) -> int:
     def _switch_cursor(self, selected: bool):
         if selected:
             self.__cursor = self._oscwin.cursor()
-            cur = iosc.const.CURSOR_PTR
+            cur = iosc.const.CURSOR_PTR_V
         else:
             cur = self.__cursor
         self._oscwin.setCursor(cur)
@@ -416,6 +416,7 @@ def __init__(self, cp: QCustomPlot):
             super().__init__(cp)
             self.setColor(Qt.white)  # text
 
+    __cursor: QCursor
     __ss: 'AnalogSignalSuit'
     __oscwin: 'ComtradeWidget'
     __uid: int  # uniq id
@@ -431,19 +432,36 @@ def __init__(self, ss: 'AnalogSignalSuit', uid: int):
         self.__tip = self._Tip(self.parentPlot())
         # self.setPen(iosc.const.PEN_PTR_OMP)
         self.__set_color()
-        self.y_reduced = self.__ss.lvl_ptr[self.__uid][1]
         self.__mult = max(max(self.__ss.signal.v_max, 0), abs(min(0, self.__ss.signal.v_min)))  # mult-r rediced<>real
-        self.__slot_update_text()
+        self.y_reduced = self.__ss.lvl_ptr[self.__uid][1]
         self.__ss.lvl_ptr[self.__uid][0] = self
         self.__oscwin.lvl_ptr_uids.add(self.__uid)
+        self.selectionChanged.connect(self.__selection_chg)
         self.signal_rmb_clicked.connect(self.__slot_context_menu)
         # self.__oscwin.signal_chged_shift.connect(self.__slot_update_text)  # behavior undefined
         self.__oscwin.signal_chged_pors.connect(self.__slot_update_text)
 
+    @property
+    def selection(self) -> bool:
+        return self.selected()
+
+    @selection.setter
+    def selection(self, val: bool):
+        self.setSelected(val)
+        self.parentPlot().ptr_selected = val
+
     @property
     def uid(self) -> int:
         return self.__uid
 
+    @property
+    def y_reduced_min(self) -> float:
+        return self.__ss.signal.v_min / self.__mult
+
+    @property
+    def y_reduced_max(self) -> float:
+        return self.__ss.signal.v_max / self.__mult
+
     @property
     def y_reduced(self) -> float:
         return self.point1.coords().y()
@@ -458,6 +476,7 @@ def y_reduced(self, y: float):
         self.point2.setCoords(self.__oscwin.osc.x_max, y)
         self.__tip.position.setCoords(0, self.y_reduced)  # FIXME: x = ?
         self.__tip.setPositionAlignment(Qt.AlignLeft | (Qt.AlignTop if self.y_reduced > 0 else Qt.AlignBottom))
+        self.__slot_update_text()
 
     @property
     def y_real(self) -> float:
@@ -490,18 +509,51 @@ def __slot_update_text(self):
         self.__tip.setText("L%d: %s" % (self.__uid, self.__ss.sig2str(self.y_real)))
         self.parentPlot().replot()  # TODO: don't to this on total repaint
 
-    def mousePressEvent(self, event: QMouseEvent, _):  # rmb click start
-        if event.button() == Qt.RightButton:
+    def mousePressEvent(self, event: QMouseEvent, _):
+        if event.button() == Qt.LeftButton:
             event.accept()
+            self.selection = True
+        elif event.button() == Qt.RightButton:
+            event.accept()  # for signal_rmb_clicked
         else:
             event.ignore()
 
-    def mouseReleaseEvent(self, event: QMouseEvent, _):  # rmb click end
-        if event.button() == Qt.RightButton:
+    def mouseReleaseEvent(self, event: QMouseEvent, _):
+        if event.button() == Qt.LeftButton:
+            if self.selection:
+                event.accept()
+                self.selection = False
+        elif event.button() == Qt.RightButton:
             self.signal_rmb_clicked.emit(event.pos())
         else:
             event.ignore()
 
+    def mouseMoveEvent(self, event: QMouseEvent, pos: QPointF):
+        """
+        :param event:
+        :param pos: Where mouse was pressed (mousePressEvent), not changing each step; unusual
+        :note: self.mouseMoveEvent() unusable because points to click position
+        """
+        if not self.selected():  # protection against 2click
+            event.ignore()
+            return
+        event.accept()
+        y_reduced_new = self.parentPlot().yAxis.pixelToCoord(event.pos().y())
+        if self.y_reduced_min <= y_reduced_new <= self.y_reduced_max:
+            self.y_reduced = y_reduced_new
+
+    def __switch_cursor(self, selected: bool):
+        if selected:
+            self.__cursor = self.__oscwin.cursor()
+            cur = iosc.const.CURSOR_PTR_H
+        else:
+            cur = self.__cursor
+        self.__oscwin.setCursor(cur)
+
+    def __selection_chg(self, selection: bool):
+        self.__switch_cursor(selection)
+        self.parentPlot().replot()  # update selection decoration
+
     def __slot_context_menu(self, pos: QPointF):
         context_menu = QMenu()
         action_edit = context_menu.addAction("Edit...")
@@ -517,13 +569,12 @@ def __edit_self(self):
         # pors all values
         form = LvlPtrDialog((
             self.__y_pors(self.y_real),
-            self.__y_pors(min(self.__ss.signal.value)),
-            self.__y_pors(max(self.__ss.signal.value))
+            self.__y_pors(self.__ss.signal.v_min),
+            self.__y_pors(self.__ss.signal.v_max)
         ))
         if form.exec_():
             # unpors back
             self.y_real = form.f_val.value() / self.__ss.signal.get_mult(self.__oscwin.show_sec)
-            self.__slot_update_text()
 
     def suicide(self):
         self.__ss.lvl_ptr[self.__uid][1] = self.y_reduced