From c39ede3b5fa0e67470a3ec4feac3722dffa98d8f Mon Sep 17 00:00:00 2001
From: Aapo <aapo.lankinen@gmail.com>
Date: Sat, 21 Nov 2020 00:26:49 +0200
Subject: [PATCH] [TD] Add Balloon property LineVisible for making the Balloon
 line visible or hidden.

---
 src/Mod/TechDraw/App/DrawViewBalloon.cpp | 2 ++
 src/Mod/TechDraw/App/DrawViewBalloon.h   | 1 +
 src/Mod/TechDraw/Gui/QGIViewBalloon.cpp  | 7 ++++++-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/Mod/TechDraw/App/DrawViewBalloon.cpp b/src/Mod/TechDraw/App/DrawViewBalloon.cpp
index 2b8950b73c..9f8a397c39 100644
--- a/src/Mod/TechDraw/App/DrawViewBalloon.cpp
+++ b/src/Mod/TechDraw/App/DrawViewBalloon.cpp
@@ -113,6 +113,8 @@ DrawViewBalloon::DrawViewBalloon(void)
     ADD_PROPERTY_TYPE(KinkLength,(prefKinkLength()),"",(App::PropertyType)(App::Prop_None),
                                   "Distance from symbol to leader kink");
 
+    ADD_PROPERTY_TYPE(LineVisible,(true),"",(App::PropertyType)(App::Prop_None),"Balloon line visible or hidden");
+
     SourceView.setScope(App::LinkScope::Global);
     Rotation.setStatus(App::Property::Hidden,true);
     Caption.setStatus(App::Property::Hidden,true);
diff --git a/src/Mod/TechDraw/App/DrawViewBalloon.h b/src/Mod/TechDraw/App/DrawViewBalloon.h
index ac72ae8699..0892aac32a 100644
--- a/src/Mod/TechDraw/App/DrawViewBalloon.h
+++ b/src/Mod/TechDraw/App/DrawViewBalloon.h
@@ -59,6 +59,7 @@ public:
     App::PropertyDistance        OriginY;
     App::PropertyFloat           TextWrapLen;
     App::PropertyDistance        KinkLength;
+    App::PropertyBool            LineVisible;
 
     short mustExecute() const override;
 
diff --git a/src/Mod/TechDraw/Gui/QGIViewBalloon.cpp b/src/Mod/TechDraw/Gui/QGIViewBalloon.cpp
index c0be4e63bb..d8404d9619 100644
--- a/src/Mod/TechDraw/Gui/QGIViewBalloon.cpp
+++ b/src/Mod/TechDraw/Gui/QGIViewBalloon.cpp
@@ -738,7 +738,7 @@ void QGIViewBalloon::draw()
         float arAngle = atan2(dirballoonLinesLine.y, dirballoonLinesLine.x) * 180 / M_PI;
 
         arrow->setPos(arrowTipX, arrowTipY);
-        if ( (endType == ArrowType::FILLED_TRIANGLE) && 
+        if ( (endType == ArrowType::FILLED_TRIANGLE) &&
              (prefOrthoPyramid()) ) {
             if (arAngle < 0.0) {
                 arAngle += 360.0;
@@ -765,6 +765,11 @@ void QGIViewBalloon::draw()
     dLinePath.lineTo(arrowTipX - xAdj, arrowTipY - yAdj);
     balloonLines->setPath(dLinePath);
 
+    if (!balloon->LineVisible.getValue()) {
+        arrow->hide();
+        balloonLines->setPath(QPainterPath());
+    }
+
     // redraw the Balloon and the parent View
     if (hasHover && !isSelected()) {
         setPrettyPre();