Fix linux compilation.

apps/notes_tk/image_editor/ImageEditorView.cpp

@@ -23,6 +23,11 @@ ImageEditorView::ImageEditorView()
     addWidget(std::move(hSpacer));
 }
 
+ImageEditorView::~ImageEditorView()
+{
+
+}
+
 std::unique_ptr<ImageEditorView> ImageEditorView::Create()
 {
     return std::make_unique<ImageEditorView>();

apps/notes_tk/image_editor/ImageEditorView.h

@@ -8,6 +8,8 @@ public:
 
     ImageEditorView();
 
+    virtual ~ImageEditorView();
+
     static std::unique_ptr<ImageEditorView> Create();
 };
 

apps/notes_tk/image_editor/ImageViewWidget.cpp

@@ -11,6 +11,11 @@ ImageViewWidget::ImageViewWidget()
     mName = "ImageViewWidget";
 }
 
+ImageViewWidget::~ImageViewWidget()
+{
+
+}
+
 void ImageViewWidget::doPaint(const PaintEvent* event)
 {
     if (!mVisible)

apps/notes_tk/image_editor/ImageViewWidget.h

@@ -9,6 +9,8 @@ class ImageViewWidget : public Widget
 public:
     ImageViewWidget();
 
+    virtual ~ImageViewWidget();
+
 private:
     void doPaint(const PaintEvent* event) override;
     unsigned mNumX{5};