ENH: Add label if the button can not be used

jira: [STUDIO-12929]
Change-Id: Ia4026282a44fd1a83a4292d7a7d11d43ed035db6
(cherry picked from commit e65755a474bc36bee0f22b7a6fb9c7eb5f86be65)

src/slic3r/GUI/Widgets/Button.hpp

@@ -26,6 +26,7 @@ enum class ButtonType{
     Expanded , // Font14  Semi-Rounded  For full length buttons. ex. buttons in static box
 };
 
+class wxTipWindow;
 class Button : public StaticBox
 {
     wxRect textSize;
@@ -42,6 +43,8 @@ class Button : public StaticBox
     bool isCenter    = true;
     bool vertical    = false;
 
+    wxTipWindow* tipWindow = nullptr;
+
     static const int buttonWidth = 200;
     static const int buttonHeight = 50;
 
@@ -74,6 +77,7 @@ public:
     void SetSelected(bool selected = true) { m_selected = selected; }
 
     bool Enable(bool enable = true) override;
+    void EnableTooltipEvenDisabled();// The tip will be shown even if the button is disabled
 
     void SetCanFocus(bool canFocus) override;
 
@@ -111,8 +115,13 @@ private:
     void mouseCaptureLost(wxMouseCaptureLostEvent &event);
     void keyDownUp(wxKeyEvent &event);
 
+    // 
     void sendButtonEvent();
 
+    // parent motion
+    void OnParentMotion(wxMouseEvent& event);
+    void OnParentLeave(wxMouseEvent& event);
+
     DECLARE_EVENT_TABLE()
 };