Added some lambda callbacks to SidePanel

modules/juce_gui_basics/layout/juce_SidePanel.cpp

@@ -77,9 +77,18 @@ void SidePanel::showOrHide (bool show)
 
         Desktop::getInstance().getAnimator().animateComponent (this, calculateBoundsInParent (*parent),
                                                                1.0f, 250, true, 1.0, 0.0);
+
+        if (onPanelShowHide != nullptr)
+            onPanelShowHide (isShowing);
     }
 }
 
+void SidePanel::moved()
+{
+    if (onPanelMove != nullptr)
+        onPanelMove();
+}
+
 void SidePanel::resized()
 {
     auto bounds = getLocalBounds();

modules/juce_gui_basics/layout/juce_SidePanel.h

@@ -112,6 +112,7 @@ public:
     void setTitleBarHeight (int newHeight) noexcept    { titleBarHeight = newHeight; }
 
     //==============================================================================
+    void moved() override;
     void resized() override;
     void paint (Graphics& g) override;
 
@@ -150,6 +151,13 @@ public:
         dismissButtonDownColour   = 0x100f005
     };
 
+    //==============================================================================
+    /** You can assign a lambda to this callback object and it will be called when the panel is moved. */
+    std::function<void()> onPanelMove;
+
+    /** You can assign a lambda to this callback object and it will be called when the panel is shown or hidden. */
+    std::function<void(bool)> onPanelShowHide;
+
 private:
     //==========================================================================
     Component* parent = nullptr;