From 968fb5be344cf35ca1ec385f7ed90b105aef619e Mon Sep 17 00:00:00 2001
From: 0penBrain <48731257+0penBrain@users.noreply.github.com>
Date: Wed, 31 Aug 2022 09:55:31 +0200
Subject: [PATCH] Sketcher/BackEdit: makes clip plane switch side according to
 view side

---
 src/Mod/Sketcher/Gui/Command.cpp            | 12 +++++++++++-
 src/Mod/Sketcher/Gui/ViewProviderSketch.cpp |  5 +++++
 src/Mod/Sketcher/Gui/ViewProviderSketch.h   |  4 ++--
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/src/Mod/Sketcher/Gui/Command.cpp b/src/Mod/Sketcher/Gui/Command.cpp
index e4fe78854d..47e55bb60e 100644
--- a/src/Mod/Sketcher/Gui/Command.cpp
+++ b/src/Mod/Sketcher/Gui/Command.cpp
@@ -964,7 +964,17 @@ CmdSketcherViewSection::CmdSketcherViewSection()
 void CmdSketcherViewSection::activated(int iMsg)
 {
     Q_UNUSED(iMsg);
-    doCommand(Doc,"ActiveSketch.ViewObject.TempoVis.sketchClipPlane(ActiveSketch)");
+    QString cmdStr = QLatin1String("ActiveSketch.ViewObject.TempoVis.sketchClipPlane(ActiveSketch, None, %1)\n");
+    Gui::Document *doc = getActiveGuiDocument();
+    bool revert = false;
+    if(doc) {
+        SketcherGui::ViewProviderSketch* vp = dynamic_cast<SketcherGui::ViewProviderSketch*>(doc->getInEdit());
+        if (vp) {
+            revert = vp->getViewOrientationFactor() < 0?true:false;
+        }
+    }
+    cmdStr = cmdStr.arg(revert?QLatin1String("True"):QLatin1String("False"));
+    doCommand(Doc, cmdStr.toLatin1());
 }
 
 bool CmdSketcherViewSection::isActive()
diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
index 03583c4985..bfc7a37a2d 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
@@ -3149,6 +3149,11 @@ void ViewProviderSketch::camSensCB(void *data, SoSensor *)
         Base::Console().Log("Switching side, now %s, redrawing\n", tmpFactor < 0 ? "back" : "front");
         vp->viewOrientationFactor = tmpFactor;
         vp->draw();
+
+        QString cmdStr = QStringLiteral(
+            "ActiveSketch.ViewObject.TempoVis.sketchClipPlane(ActiveSketch, ActiveSketch.ViewObject.SectionView, %1)\n")
+            .arg(tmpFactor<0?QLatin1String("True"):QLatin1String("False"));
+        Base::Interpreter().runStringObject(cmdStr.toLatin1());
     }
 }
 
diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.h b/src/Mod/Sketcher/Gui/ViewProviderSketch.h
index 5a98133d85..7620dc090f 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.h
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.h
@@ -500,6 +500,8 @@ public:
     void centerSelection();
     /// returns the scale factor
     float getScaleFactor() const;
+    /// returns view orientation factor
+    int getViewOrientationFactor() const;
     //@}
 
     /** @name constraint Virtual Space visibility management */
@@ -685,8 +687,6 @@ private:
 
     int getApplicationLogicalDPIX() const;
 
-    int getViewOrientationFactor() const;
-
     double getRotation(SbVec3f pos0, SbVec3f pos1) const;
 
     bool isSketchInvalid() const;