color to dsc curves in tg

src/gui_qt/dsc/glass_dialog.py

@@ -1,3 +1,8 @@
+from itertools import cycle
+
+from pyqtgraph import mkPen, mkBrush
+
+from nmreval.lib.colors import Tab10
 from ..Qt import QtWidgets, QtCore
 from .._py.tnmh_dialog import Ui_Dialog
 from ..lib.pg_objects import PlotItem, RegionItem
@@ -11,11 +16,10 @@ class TgCalculator(QtWidgets.QDialog, Ui_Dialog):
 
         self.setupUi(self)
         self._management = management
+        self._colors = cycle(Tab10)
 
-        self._plots = {}
+        self._dsc = {}
         self._tg_baselines = {}
-        self.dsc = []
-
         self.limits = RegionItem(), RegionItem()
         for lim in self.limits:
             self.graphicsView.addItem(lim)
@@ -28,45 +32,61 @@ class TgCalculator(QtWidgets.QDialog, Ui_Dialog):
         # s.valuesChanged.connect(self.management.shift_scale)
 
     def clear(self):
-        self.dsc = []
         self.listWidget.clear()
-        for v in self._plots.values():
-            self.graphicsView.removeItem(v)
-        self._plots = {}
+        for plot, data in self._dsc.values():
+            self.graphicsView.removeItem(plot)
+        self._dsc = {}
 
         for v in self._tg_baselines.values():
             self.graphicsView.removeItem(v)
         self._tg_baselines = {}
 
     def add_sets(self):
-        for key, name in self._management.active_sets:
-            data = self._management.data[key]
-            if isinstance(data.data, DSC):
-                self.dsc.append(data)
-            else:
+        min_x = 10_000_000
+        max_x = -10_000_000
+        for (key, name), c in zip(self._management.active_sets, self._colors):
+            data = self._management[key].data
+            if not isinstance(data, DSC):
                 continue
 
+            min_x = min(min_x, data.x.min())
+            max_x = max(max_x, data.x.max())
+
             item = QtWidgets.QListWidgetItem(name)
             item.setData(QtCore.Qt.UserRole, key)
+            item.setForeground(mkBrush(c.rgb()))
             self.listWidget.addItem(item)
 
-            plot = PlotItem(x=data.x, y=data.y)
+            plot = PlotItem(x=data.x, y=data.y, pen=mkPen(c.rgb()))
             self.graphicsView.addItem(plot)
-            self._plots[key] = plot
+            self._dsc[key] = (plot, data)
+
+        dist = max_x - min_x
+        self.limits[0].setRegion((min_x, min_x+0.1*dist))
+        self.limits[1].setRegion((max_x-0.1*dist, max_x))
 
     @QtCore.pyqtSlot(name='on_pushButton_clicked')
     def calc_tg(self):
+        for v in self._tg_baselines.values():
+            self.graphicsView.removeItem(v)
+        self._tg_baselines = {}
+
         baselines = tuple(lim.getRegion() for lim in self.limits)
         if baselines[0][0] > baselines[1][0]:
             baselines = baselines[1], baselines[0]
 
         for idx in range(self.listWidget.count()):
-            key = self.listWidget.item(idx).data(QtCore.Qt.UserRole)
-            tg_results, glass, liquid, tangent = self._management[key].data.glass_transition(*baselines)
+            item = self.listWidget.item(idx)
+            key = item.data(QtCore.Qt.UserRole)
+            color = item.foreground()
+            print(color)
+            _, data = self._dsc[key]
+            tg_results, glass, liquid, tangent = data.glass_transition(*baselines)
 
             lines = []
             for line in (glass, liquid, tangent):
                 plt = PlotItem(line[:, 0], line[:, 1])
+                plt.set_line(style=2, color=color.color())
                 self.graphicsView.addItem(plt)
                 lines.append(plt)
             self._tg_baselines[key] = lines