TD annotation: use more suitable properties

- see https://forum.freecadweb.org/viewtopic.php?f=35&t=40608 for details
- also simplify tooltips

src/Mod/TechDraw/App/DrawViewAnnotation.cpp

@@ -63,16 +63,15 @@ DrawViewAnnotation::DrawViewAnnotation(void)
     std::string fontName = hGrp->GetASCII("LabelFont", "osifont");
     double defFontSize = hGrp->GetFloat("LabelSize", 5.0);
 
-    ADD_PROPERTY_TYPE(Text ,("Default Text"),vgroup,App::Prop_None,"The text to be displayed");
-    ADD_PROPERTY_TYPE(Font ,(fontName.c_str()),vgroup,App::Prop_None, "The name of the font to use");
-    ADD_PROPERTY_TYPE(TextColor,(0.0f,0.0f,0.0f),vgroup,App::Prop_None,"The color of the text");
-
-    ADD_PROPERTY_TYPE(TextSize,(defFontSize),vgroup,App::Prop_None,"The size of the text in units");
-    ADD_PROPERTY_TYPE(MaxWidth,(-1.0),vgroup,App::Prop_None,"The maximum width of the Annotation block");
-    ADD_PROPERTY_TYPE(LineSpace,(80),vgroup,App::Prop_None,"Line spacing adjustment. 100 is normal spacing.");
+    ADD_PROPERTY_TYPE(Text ,("Default Text"),vgroup,App::Prop_None,"Annotation text");
+    ADD_PROPERTY_TYPE(Font ,(fontName.c_str()),vgroup,App::Prop_None, "Font name");
+    ADD_PROPERTY_TYPE(TextColor,(0.0f,0.0f,0.0f),vgroup,App::Prop_None,"Text color");
+    ADD_PROPERTY_TYPE(TextSize,(defFontSize),vgroup,App::Prop_None,"Text size");
+    ADD_PROPERTY_TYPE(MaxWidth,(-1.0),vgroup,App::Prop_None,"Maximum width of the annotation block.\n -1 means no maximum width.");
+    ADD_PROPERTY_TYPE(LineSpace,(80),vgroup,App::Prop_None,"Line spacing in %. 100 means the height of a line.");
 
     TextStyle.setEnums(TextStyleEnums);
-    ADD_PROPERTY(TextStyle, ((long)0));
+    ADD_PROPERTY_TYPE(TextStyle,((long)0),vgroup,App::Prop_None,"Text style");
 
     Scale.setStatus(App::Property::Hidden,true);
     ScaleType.setStatus(App::Property::Hidden,true);

src/Mod/TechDraw/App/DrawViewAnnotation.h

@@ -51,9 +51,9 @@ class TechDrawExport DrawViewAnnotation : public TechDraw::DrawView
     App::PropertyFont         Font;
     App::PropertyColor        TextColor;
     App::PropertyLength       TextSize;
-    App::PropertyInteger      LineSpace;
+    App::PropertyPercent      LineSpace;
     App::PropertyEnumeration  TextStyle; // Plain,Bold,Italic,Bold-Italic
-    App::PropertyFloat        MaxWidth;
+    App::PropertyLength       MaxWidth;
 
     virtual QRectF getRect() const;