plot fit and residual together with bigger fit

src/gui_qt/_py/fitresult.py

@@ -14,7 +14,7 @@ from PyQt5 import QtCore, QtGui, QtWidgets
 class Ui_Dialog(object):
     def setupUi(self, Dialog):
         Dialog.setObjectName("Dialog")
-        Dialog.resize(864, 712)
+        Dialog.resize(969, 974)
         self.gridLayout = QtWidgets.QGridLayout(Dialog)
         self.gridLayout.setObjectName("gridLayout")
         self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
@@ -153,18 +153,10 @@ class Ui_Dialog(object):
         self.logx_box.setLayoutDirection(QtCore.Qt.RightToLeft)
         self.logx_box.setObjectName("logx_box")
         self.gridLayout_3.addWidget(self.logx_box, 2, 0, 1, 1)
-        self.fit_plot = PlotWidget(self.stackPage1)
-        self.fit_plot.setObjectName("fit_plot")
-        self.gridLayout_3.addWidget(self.fit_plot, 0, 0, 1, 2)
+        self.graphicsView = GraphicsLayoutWidget(self.stackPage1)
+        self.graphicsView.setObjectName("graphicsView")
+        self.gridLayout_3.addWidget(self.graphicsView, 0, 0, 1, 2)
         self.stack.addTab(self.stackPage1, "")
-        self.tab = QtWidgets.QWidget()
-        self.tab.setObjectName("tab")
-        self.verticalLayout = QtWidgets.QVBoxLayout(self.tab)
-        self.verticalLayout.setObjectName("verticalLayout")
-        self.resid_plot = PlotWidget(self.tab)
-        self.resid_plot.setObjectName("resid_plot")
-        self.verticalLayout.addWidget(self.resid_plot)
-        self.stack.addTab(self.tab, "")
         self.stackPage2 = QtWidgets.QWidget()
         self.stackPage2.setObjectName("stackPage2")
         self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.stackPage2)
@@ -232,7 +224,6 @@ class Ui_Dialog(object):
         self.logy_box.setText(_translate("Dialog", "logarithmic y axis"))
         self.logx_box.setText(_translate("Dialog", "logarithmic x axis"))
         self.stack.setTabText(self.stack.indexOf(self.stackPage1), _translate("Dialog", "Plot"))
-        self.stack.setTabText(self.stack.indexOf(self.tab), _translate("Dialog", "Residuals"))
         self.stack.setTabText(self.stack.indexOf(self.stackPage2), _translate("Dialog", "Statistics"))
         item = self.corr_tableWidget.horizontalHeaderItem(0)
         item.setText(_translate("Dialog", "Parameter 1"))
@@ -244,4 +235,4 @@ class Ui_Dialog(object):
         item.setText(_translate("Dialog", "Partial Corr."))
         self.stack.setTabText(self.stack.indexOf(self.stackPage3), _translate("Dialog", "Correlations"))
 from ..lib.forms import ElideComboBox
-from pyqtgraph import PlotWidget
+from pyqtgraph import GraphicsLayoutWidget

src/gui_qt/fit/result.py

@@ -33,6 +33,12 @@ class QFitResult(QtWidgets.QDialog, Ui_Dialog):
         self.graph_opts = {}
         self.last_idx = None
 
+        self.resid_plot = self.graphicsView.addPlot(row=0, col=0, title='Residual')
+        self.fit_plot = self.graphicsView.addPlot(row=1, col=0, title='Fit')
+
+        self.graphicsView.ci.layout.setRowStretchFactor(0, 1)
+        self.graphicsView.ci.layout.setRowStretchFactor(1, 2)
+
         self.resid_graph = PlotItem(x=[], y=[],
                                     symbol='o', symbolPen=None, symbolBrush=mkBrush(color=(31, 119, 180)),
                                     pen=None)
@@ -41,7 +47,6 @@ class QFitResult(QtWidgets.QDialog, Ui_Dialog):
                                          pen=None)
         self.resid_plot.addItem(self.resid_graph)
         self.resid_plot.addItem(self.resid_graph_imag)
-        self.resid_plot.setLabel('left', 'Residual')
 
         self.data_graph = PlotItem(x=[], y=[],
                                    symbol='o', symbolPen=None, symbolBrush=mkBrush(color=(31, 119, 180)),
@@ -51,7 +56,6 @@ class QFitResult(QtWidgets.QDialog, Ui_Dialog):
                                         pen=None)
         self.fit_plot.addItem(self.data_graph)
         self.fit_plot.addItem(self.data_graph_imag)
-        self.fit_plot.setLabel('left', 'Function')
 
         self.fit_graph = PlotItem(x=[], y=[])
         self.fit_graph_imag = PlotItem(x=[], y=[])
@@ -159,7 +163,7 @@ class QFitResult(QtWidgets.QDialog, Ui_Dialog):
         iscomplex = res.iscomplex
 
         sub_funcs = res.sub(res.x)
-        for item in self.fit_plot.plotItem.items[::-1]:
+        for item in self.fit_plot.items[::-1]:
             if item not in [self.data_graph, self.data_graph_imag, self.fit_graph, self.fit_graph_imag]:
                 self.fit_plot.removeItem(item)
 

src/resources/_ui/fitresult.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>864</width>
-    <height>712</height>
+    <width>969</width>
+    <height>974</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -307,17 +307,7 @@
         </widget>
        </item>
        <item row="0" column="0" colspan="2">
-        <widget class="PlotWidget" name="fit_plot"/>
-       </item>
-      </layout>
-     </widget>
-     <widget class="QWidget" name="tab">
-      <attribute name="title">
-       <string>Residuals</string>
-      </attribute>
-      <layout class="QVBoxLayout" name="verticalLayout">
-       <item>
-        <widget class="PlotWidget" name="resid_plot"/>
+        <widget class="GraphicsLayoutWidget" name="graphicsView"/>
        </item>
       </layout>
      </widget>
@@ -435,7 +425,7 @@
    <header>..lib.forms</header>
   </customwidget>
   <customwidget>
-   <class>PlotWidget</class>
+   <class>GraphicsLayoutWidget</class>
    <extends>QGraphicsView</extends>
    <header>pyqtgraph</header>
   </customwidget>