CSSTUDIO-2954 Add informative tooltips to the class Widget.

Author: abrahamwolk

app/display/model/src/main/java/org/csstudio/display/builder/model/Widget.java

@@ -211,14 +211,23 @@ public Widget(final String type, final int default_width, final int default_heig
         // -- Mandatory properties --
         prelim_properties.add(this.type = propType.createProperty(this, type));
         prelim_properties.add(name = propName.createProperty(this, ""));
+        name.setInformativeTooltip("The name of the widget.");
         prelim_properties.add(widget_class = propWidgetClass.createProperty(this, WidgetClassSupport.DEFAULT));
+        widget_class.setInformativeTooltip("The style class of the widget.");
         prelim_properties.add(x = propX.createProperty(this, 0));
+        x.setInformativeTooltip("The x-coordinate of the widget counted in pixels from the left side of the screen.");
         prelim_properties.add(y = propY.createProperty(this, 0));
+        y.setInformativeTooltip("The y-coordinate of the widget counted in pixels from the top of the screen.");
         prelim_properties.add(width = propWidth.createProperty(this, default_width));
+        width.setInformativeTooltip("The width of the widget in pixels.");
         prelim_properties.add(height = propHeight.createProperty(this, default_height));
+        height.setInformativeTooltip("The height of the widget in pixels.");
         prelim_properties.add(actions = propActions.createProperty(this, ActionInfos.EMPTY));
+        actions.setInformativeTooltip("Actions to execute when the widget is clicked on.");
         prelim_properties.add(rules = propRules.createProperty(this, Collections.emptyList()));
+        rules.setInformativeTooltip("Rules associated with the widget.");
         prelim_properties.add(scripts = propScripts.createProperty(this, Collections.emptyList()));
+        scripts.setInformativeTooltip("Scripts associated with the widget.");
 
         // -- Widget-specific properties --
         defineProperties(prelim_properties);