Tool line. Block selecting the same point twice.

(grafted from 0029c3e3b5ae45d21f834f0d36023d8ef9734345)

--HG--
branch : develop

ChangeLog.txt

@@ -6,6 +6,7 @@
 - [#325] Check pattern for inverse compatibility.
 
 # Version 0.4.2
+- Tool line. Block selecting the same point twice.
 - [#443] Not valid dxf file. libdxf updated to version 3.12.2.0. Fixed drawing subpaths.
 - Fixed combobox width in Dialog "Tool True Dart point".
 - [#441] Broken reference incrementation for tool "True Dart point".

src/libs/vtools/dialogs/tools/dialogline.cpp

@@ -182,13 +182,16 @@ void DialogLine::ChosenObject(quint32 id, const SceneObject &type)
                     }
                     break;
                 case 1:
-                    if (SetObject(id, ui->comboBoxSecondPoint, ""))
+                    if (getCurrentObjectId(ui->comboBoxFirstPoint) != id)
                     {
-                        if (flagError)
+                        if (SetObject(id, ui->comboBoxSecondPoint, ""))
                         {
-                            number = 0;
-                            prepare = true;
-                            DialogAccepted();
+                            if (flagError)
+                            {
+                                number = 0;
+                                prepare = true;
+                                DialogAccepted();
+                            }
                         }
                     }
                     break;