Enhancement undo show tooltips option (fix #1827)

data/pref.xml

@@ -121,6 +121,7 @@
       <option id="size_limit" type="int" default="0" />
       <option id="goto_modified" type="bool" default="true" />
       <option id="allow_nonlinear_history" type="bool" default="false" />
+      <option id="show_tooltip" type="bool" default="true" />
     </section>
     <section id="editor" text="Editor">
       <option id="zoom_with_wheel" type="bool" default="true" migrate="Options.ZoomWithMouseWheel" />

data/strings/en.ini

@@ -1001,6 +1001,7 @@ layer_edges_color = Layer Edges Color:
 auto_guides_color = Auto Guides Color:
 default_slice_color = Default Color:
 undo = Undo
+undo_show_tooltip = Show Undo Tooltip
 undo_size_limit = Undo Limit:
 undo_size_limit_tooltip = <<<END
 Limit of memory to be used

data/widgets/options.xml

@@ -305,6 +305,8 @@
                    tooltip="@.undo_goto_modified_tooltip" />
             <check id="undo_allow_nonlinear_history"
                    text="@.undo_allow_nonlinear_history" />
+            <check text="@.undo_show_tooltip" id="undo_show_tooltip"
+                   pref="undo.show_tooltip" />
           </vbox>
         </vbox>
 

src/app/commands/cmd_undo.cpp

@@ -108,11 +108,15 @@ void UndoCommand::onExecute(Context* context)
 
   StatusBar* statusbar = StatusBar::instance();
   if (statusbar) {
-    statusbar->showTip(1000, "%s %s",
-      (m_type == Undo ? "Undid": "Redid"),
-      (m_type == Undo ?
-        undo->nextUndoLabel().c_str():
-        undo->nextRedoLabel().c_str()));
+    std::string msg;
+    if (m_type == Undo)
+      msg = "Undid " + undo->nextUndoLabel();
+    else
+      msg = "Redid " + undo->nextRedoLabel();
+    if (Preferences::instance().undo.showTooltip())
+      statusbar->showTip(1000, msg.c_str());
+    else
+      statusbar->setStatusText(0, msg.c_str());
   }
 #endif // ENABLE_UI