1 files changed, 17 insertions, 10 deletions

diff --git a/wx+/tooltip.cpp b/wx+/tooltip.cpp
index a3fa770d..c56d80a1 100644
--- a/wx+/tooltip.cpp
+++ b/wx+/tooltip.cpp
@@ -27,10 +27,9 @@ const int TIP_WINDOW_OFFSET_DIP = 30;
 class Tooltip::TooltipDlgGenerated : public wxDialog
 {
 public:
-    TooltipDlgGenerated(wxWindow* parent) : wxDialog(parent, wxID_ANY, L"" /*title*/, wxDefaultPosition, wxDefaultSize, 0 /*style*/)
+    TooltipDlgGenerated(wxWindow* parent) : //Suse Linux/X11: needs parent window, else there are z-order issues
+        wxDialog(parent, wxID_ANY, L"" /*title*/, wxDefaultPosition, wxDefaultSize, 0 /*style*/)
     {
-        //Suse Linux/X11: needs parent window, else there are z-order issues
-
         SetSizeHints(wxDefaultSize, wxDefaultSize);
         SetExtraStyle(this->GetExtraStyle() | wxWS_EX_TRANSIENT);
         SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_INFOBK));   //both required: on Ubuntu background is black, foreground white!
@@ -44,11 +43,11 @@ public:
         bSizer158->Add(staticTextMain_, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
 
         SetSizer(bSizer158);
-        Layout();
-        bSizer158->Fit(this);
 
     }
 
+    bool AcceptsFocus() const override { return false; } //any benefit?
+
     wxStaticText* staticTextMain_ = nullptr;
     wxStaticBitmap* bitmapLeft_   = nullptr;
 };
@@ -61,21 +60,28 @@ void Tooltip::show(const wxString& text, wxPoint mousePos, const wxImage* img)
 
     const wxImage& newImg = img ? *img : wxNullImage;
 
-    if (!lastUsedImg_.IsSameAs(newImg))
+    const bool imgChanged = !newImg.IsSameAs(lastUsedImg_);
+    const bool txtChanged = text != tipWindow_->staticTextMain_->GetLabelText();
+
+    if (imgChanged)
     {
         lastUsedImg_ = newImg;
         setImage(*tipWindow_->bitmapLeft_, newImg);
-        tipWindow_->Refresh(); //needed if bitmap size changed!
+        // tipWindow_->Refresh(); //needed if bitmap size changed!    ->???
     }
 
-    if (text != tipWindow_->staticTextMain_->GetLabelText())
+    if (txtChanged)
     {
         tipWindow_->staticTextMain_->SetLabelText(text);
         tipWindow_->staticTextMain_->Wrap(fastFromDIP(600));
     }
 
-    tipWindow_->GetSizer()->SetSizeHints(tipWindow_); //~=Fit() + SetMinSize()
-    //Linux: Fit() seems to be broken => this needs to be called EVERY time inside show, not only if text or bmp change
+    if (imgChanged || txtChanged)
+    {
+        //tipWindow_->Layout(); -> apparently not needed!?
+        tipWindow_->GetSizer()->SetSizeHints(tipWindow_); //~=Fit() + SetMinSize()
+        //Linux: Fit() seems to be broken => call EVERY time inside show, not only if text or bmp change -> still true?!?
+    }
 
     const wxPoint newPos = wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft ?
                            mousePos - wxPoint(fastFromDIP(TIP_WINDOW_OFFSET_DIP) + tipWindow_->GetSize().GetWidth(), 0) :
@@ -98,6 +104,7 @@ void Tooltip::hide()
 #if GTK_MAJOR_VERSION == 2 //the tooltip sometimes turns blank or is not shown again after it was hidden: e.g. drag-selection on middle grid
         tipWindow_->Destroy(); //apply brute force:
         tipWindow_ = nullptr;  //
+        lastUsedImg_ = wxNullImage;
 
 #elif GTK_MAJOR_VERSION == 3
         tipWindow_->Hide();