Layer sidebar repaint fixed

src/control/layer/LayerController.cpp

@@ -250,6 +250,13 @@ PageRef LayerController::getCurrentPage()
 	return control->getDocument()->getPage(selectedPage);
 }
 
+size_t LayerController::getCurrentPageId()
+{
+	XOJ_CHECK_TYPE(LayerController);
+
+	return selectedPage;
+}
+
 void LayerController::setLayerVisible(int layerId, bool visible)
 {
 	XOJ_CHECK_TYPE(LayerController);

src/control/layer/LayerController.h

@@ -69,6 +69,7 @@ public:
 	void setLayerVisible(int layerId, bool visible);
 
 	PageRef getCurrentPage();
+	size_t getCurrentPageId();
 
 	/**
 	 * @return Layer count of the current page

src/gui/sidebar/previews/layer/SidebarPreviewLayers.cpp

@@ -54,6 +54,34 @@ string SidebarPreviewLayers::getIconName()
 	return "layer.svg";
 }
 
+void SidebarPreviewLayers::pageSizeChanged(size_t page)
+{
+	XOJ_CHECK_TYPE(SidebarPreviewLayers);
+
+	if (page != this->lc->getCurrentPageId())
+	{
+		return;
+	}
+
+	updatePreviews();
+}
+
+void SidebarPreviewLayers::pageChanged(size_t page)
+{
+	XOJ_CHECK_TYPE(SidebarPreviewLayers);
+
+	if (page != this->lc->getCurrentPageId())
+	{
+		return;
+	}
+
+	// Repaint all layer
+	for (SidebarPreviewBaseEntry* p : this->previews)
+	{
+		p->repaint();
+	}
+}
+
 void SidebarPreviewLayers::updatePreviews()
 {
 	XOJ_CHECK_TYPE(SidebarPreviewLayers);

src/gui/sidebar/previews/layer/SidebarPreviewLayers.h

@@ -58,6 +58,11 @@ public:
 protected:
 	void updateSelectedLayer();
 
+public:
+	// DocumentListener interface (only the part which is not handled by SidebarPreviewBase)
+	virtual void pageSizeChanged(size_t page);
+	virtual void pageChanged(size_t page);
+
 private:
 	XOJ_TYPE_ATTRIB;