[#197]: Unselect group in UI when we no longer have anything selected

assets/levels/MediumLevel.editor.dgl

@@ -1 +1 @@
-{"GROUPS":{"Main Road":[12884918327,12884918328,12884918329,12884918330,12884918331,12884918332,12884918333,12884918334,12884918335,12884918336,12884918337,12884918338,12884918339,12884918340,12884918341,12884918342,12884918349,12884918350,12884918351,12884918352,12884918353,12884918354,12884918355,12884918356,12884918357,12884918358,12884918359,12884918367,12884918368,12884918369,12884918372,12884918373,12884918374,12884918375,12884918376,12884918377,12884918378,12884918379,12884918380,12884918381,12884918385,12884918386,12884918387,12884918388,12884918389,12884918390,12884918391,12884918392,12884918393,12884918394,12884918395,12884918396,12884918397,12884918398,12884918399,12884918400,12884918401,12884918402,12884918403,12884918404,12884918405,12884918407,12884918408,12884918409,12884918410,12884918411,12884918412,12884918413,12884918414,12884918415,12884918416,12884918417,12884918418,12884918419,12884918420,12884918427,12884918428,12884918429,12884918430,12884918431,12884918432,12884918433,12884918434,12884918435,12884918436,12884918457,12884918458,12884918459,12884918460,12884918461,12884918462,12884919094,12884919097,12884919098,12884919099,12884919100]}}
+{"GROUPS":{"Buildings":[12884918424,12884919103,12884918425,12884918423,12884918360,12884918315,12884918837,12884918560],"Default":[12884918293,12884918294,12884918295,12884918296,12884918297,12884918298,12884918299,12884918300,12884918301,12884918302,12884918303,12884918304,12884918305,12884918306,12884918307,12884918308,12884918309,12884918310,12884918311,12884918312,12884918313,12884918314,12884918316,12884918317,12884918318,12884918319,12884918320,12884918321,12884918322,12884918323,12884918324,12884918325,12884918326,12884918343,12884918344,12884918345,12884918346,12884918347,12884918348,12884918361,12884918362,12884918363,12884918364,12884918365,12884918366,12884918370,12884918371,12884918382,12884918383,12884918384,12884918406,12884918421,12884918422,12884918426,12884918437,12884918438,12884918439,12884918440,12884918441,12884918442,12884918443,12884918444,12884918445,12884918446,12884918447,12884918448,12884918449,12884918450,12884918451,12884918452,12884918453,12884918454,12884918455,12884918456,12884918463,12884918464,12884918465,12884918466,12884918467,12884918468,12884918469,12884918470,12884918471,12884918472,12884918473,12884918474,12884918475,12884918476,12884918477,12884918478,12884918479,12884918480,12884918481,12884918482,12884918483,12884918484,12884918485,12884918486,12884918487,12884918488,12884918489,12884918490,12884918491,12884918492,12884918493,12884918494,12884918495,12884918496,12884918497,12884918498,12884918499,12884918500,12884918501,12884918502,12884918503,12884918504,12884918505,12884918506,12884918507,12884918508,12884918509,12884918510,12884918511,12884918512,12884918513,12884918514,12884918515,12884918516,12884918517,12884918518,12884918519,12884918520,12884918521,12884918522,12884918523,12884918524,12884918525,12884918526,12884918527,12884918528,12884918529,12884918530,12884918531,12884918532,12884918533,12884918534,12884918535,12884918536,12884918537,12884918538,12884918539,12884918540,12884918541,12884918542,12884918543,12884918544,12884918545,12884918546,12884918547,12884918548,12884918549,12884918550,12884918551,12884918552,12884918553,12884918554,12884918555,12884918556,12884918557,12884918558,12884918559,12884918561,12884918562,12884918563,12884918564,12884918565,12884918566,12884918567,12884918568,12884918569,12884918570,12884918571,12884918572,12884918573,12884918574,12884918575,12884918576,12884918577,12884918578,12884918579,12884918580,12884918581,12884918582,12884918583,12884918584,12884918585,12884918586,12884918587,12884918588,12884918589,12884918590,12884918591,12884918592,12884918593,12884918594,12884918595,12884918596,12884918597,12884918598,12884918599,12884918600,12884918601,12884918602,12884918603,12884918604,12884918605,12884918606,12884918607,12884918608,12884918609,12884918610,12884918611,12884918612,12884918613,12884918614,12884918615,12884918616,12884918617,12884918618,12884918619,12884918620,12884918621,12884918622,12884918623,12884918624,12884918625,12884918626,12884918627,12884918628,12884918629,12884918630,12884918631,12884918632,12884918633,12884918634,12884918635,12884918636,12884918637,12884918638,12884918639,12884918640,12884918641,12884918642,12884918643,12884918644,12884918645,12884918646,12884918647,12884918648,12884918649,12884918650,12884918651,12884918652,12884918653,12884918654,12884918655,12884918656,12884918657,12884918658,12884918659,12884918660,12884918661,12884918662,12884918663,12884918664,12884918665,12884918666,12884918667,12884918668,12884918669,12884918670,12884918671,12884918672,12884918673,12884918674,12884918675,12884918676,12884918677,12884918678,12884918679,12884918680,12884918681,12884918682,12884918683,12884918684,12884918685,12884918686,12884918687,12884918688,12884918689,12884918690,12884918691,12884918692,12884918693,12884918694,12884918695,12884918696,12884918697,12884918698,12884918699,12884918700,12884918701,12884918702,12884918703,12884918704,12884918705,12884918706,12884918707,12884918708,12884918709,12884918710,12884918711,12884918712,12884918713,12884918714,12884918715,12884918716,12884918717,12884918718,12884918719,12884918720,12884918721,12884918722,12884918723,12884918724,12884918725,12884918726,12884918727,12884918728,12884918729,12884918730,12884918731,12884918732,12884918733,12884918734,12884918735,12884918736,12884918737,12884918738,12884918739,12884918740,12884918741,12884918742,12884918743,12884918744,12884918745,12884918746,12884918747,12884918748,12884918749,12884918750,12884918751,12884918752,12884918753,12884918754,12884918755,12884918756,12884918757,12884918758,12884918759,12884918760,12884918761,12884918762,12884918763,12884918764,12884918765,12884918766,12884918767,12884918768,12884918769,12884918770,12884918771,12884918772,12884918773,12884918774,12884918775,12884918776,12884918777,12884918778,12884918779,12884918780,12884918781,12884918782,12884918783,12884918784,12884918785,12884918786,12884918787,12884918788,12884918789,12884918790,12884918791,12884918792,12884918793,12884918794,1288491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Road":[12884918327,12884918328,12884918329,12884918330,12884918331,12884918332,12884918333,12884918334,12884918335,12884918336,12884918337,12884918338,12884918339,12884918340,12884918341,12884918342,12884918349,12884918350,12884918351,12884918352,12884918353,12884918354,12884918355,12884918356,12884918357,12884918358,12884918359,12884918367,12884918368,12884918369,12884918372,12884918373,12884918374,12884918375,12884918376,12884918377,12884918378,12884918379,12884918380,12884918381,12884918385,12884918386,12884918387,12884918388,12884918389,12884918390,12884918391,12884918392,12884918393,12884918394,12884918395,12884918396,12884918397,12884918398,12884918399,12884918400,12884918401,12884918402,12884918403,12884918404,12884918405,12884918407,12884918408,12884918409,12884918410,12884918411,12884918412,12884918413,12884918414,12884918415,12884918416,12884918417,12884918418,12884918419,12884918420,12884918427,12884918428,12884918429,12884918430,12884918431,12884918432,12884918433,12884918434,12884918435,12884918436,12884918457,12884918458,12884918459,12884918460,12884918461,12884918462,12884919094,12884919097,12884919098,12884919099,12884919100]}}

editor/gui/editor_gui.cpp

@@ -435,6 +435,11 @@ EditorGUI::ObjectUnselected(Object::ID ID)
       }));
       RecalculateCommonProperties();
    }
+
+   if (selectedObjects_.empty())
+   {
+      selectedGroup_ = "";
+   }
 }
 
 void

editor/gui/editor_gui_object.cpp

@@ -126,15 +126,14 @@ EditorGUI::RenderGroupSelectModifications()
                   }
                   ImGui::PopStyleColor();
 
-                  for (uint32_t idx = 1; idx < groupNames_.size(); ++idx)
+                  auto group =
+                     std::find_if(groupNames_.begin() + 1, groupNames_.end(),
+                                  [](const auto& name) { return ImGui::Selectable(name.c_str()); });
+                  if (group != groupNames_.end())
                   {
-                     const auto& group = groupNames_.at(idx);
-                     if (ImGui::Selectable(group.c_str()))
-                     {
-                        UpdateGroupForSelection(group);
-                        break;
-                     }
+                     UpdateGroupForSelection(*group);
                   }
+
                   ImGui::EndCombo();
                }
             },