#879 Inverted option for STEPS style

plotjuggler_app/plotwidget.cpp

@@ -674,6 +674,10 @@ QDomElement PlotWidget::xmlSaveState(QDomDocument& doc) const
   {
     plot_el.setAttribute("style", "Steps");
   }
+  else if (curveStyle() == PlotWidgetBase::STEPSINV)
+  {
+    plot_el.setAttribute("style", "StepsInv");
+  }
 
   for (auto& it : curveList())
   {
@@ -877,6 +881,10 @@ bool PlotWidget::xmlLoadState(QDomElement& plot_widget, bool autozoom)
     {
       changeCurvesStyle(PlotWidgetBase::STEPS);
     }
+    else if (style == "StepsInv")
+    {
+      changeCurvesStyle(PlotWidgetBase::STEPSINV);
+    }
   }
 
   QString bg_data = plot_widget.attribute("background_data");

plotjuggler_app/plotwidget_editor.cpp

@@ -68,6 +68,10 @@ PlotwidgetEditor::PlotwidgetEditor(PlotWidget* plotwidget, QWidget* parent)
   {
     ui->radioSteps->setChecked(true);
   }
+  else if (_plotwidget->curveStyle() == PlotWidgetBase::STEPSINV)
+  {
+    ui->radioSteps->setChecked(true);
+  }
   else
   {
     ui->radioBoth->setChecked(true);
@@ -320,6 +324,14 @@ void PlotwidgetEditor::on_radioSteps_toggled(bool checked)
   }
 }
 
+void PlotwidgetEditor::on_radioStepsInv_toggled(bool checked)
+{
+  if (checked)
+  {
+    _plotwidget->changeCurvesStyle(PlotWidgetBase::STEPSINV);
+  }
+}
+
 void PlotwidgetEditor::on_checkBoxMax_toggled(bool checked)
 {
   ui->lineLimitMax->setEnabled(checked);

plotjuggler_app/plotwidget_editor.h

@@ -86,6 +86,8 @@ private slots:
 
   void on_radioSteps_toggled(bool checked);
 
+  void on_radioStepsInv_toggled(bool checked);
+
 private:
   Ui::PlotWidgetEditor* ui;
 

plotjuggler_app/plotwidget_editor.ui

@@ -344,7 +344,14 @@
              <item>
              <widget class="QRadioButton" name="radioSteps">
               <property name="text">
-               <string>Steps</string>
+               <string>Steps (pre)</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="radioStepsInv">
+              <property name="text">
+               <string>Step (post)</string>
               </property>
              </widget>
             </item>

plotjuggler_base/include/PlotJuggler/plotwidget_base.h

@@ -33,7 +33,8 @@ class PlotWidgetBase : public QWidget
     DOTS,
     LINES_AND_DOTS,
     STICKS,
-    STEPS
+    STEPS,
+    STEPSINV
   };
 
   struct CurveInfo

plotjuggler_base/src/plotwidget_base.cpp

@@ -723,6 +723,11 @@ void PlotWidgetBase::setStyle(QwtPlotCurve* curve, CurveStyle style)
       break;
     case STEPS:
       curve->setStyle(QwtPlotCurve::Steps);
+      curve->setCurveAttribute(QwtPlotCurve::Inverted, false);
+      break;
+      case STEPSINV:
+      curve->setStyle(QwtPlotCurve::Steps);
+      curve->setCurveAttribute(QwtPlotCurve::Inverted, true);
       break;
   }
 }