23 void Window::visitLayers(std::function<void(Layer*)> visitor) {  in visitLayers()
31 bool Window::signalLayers(std::function<bool(Layer*)> visitor) {  in signalLayers()
41     this->visitLayers([](Layer* layer) { layer->onBackendCreated(); });  in onBackendCreated()  argument
45     return this->signalLayers([=](Layer* layer) { return layer->onChar(c, modifiers); });  in onChar()  argument
49     return this->signalLayers([=](Layer* layer) { return layer->onKey(key, state, modifiers); });  in onKey()  argument
53     return this->signalLayers([=](Layer* layer) { return layer->onMouse(x, y, state, modifiers); });  in onMouse()  argument
57     return this->signalLayers([=](Layer* layer) { return layer->onMouseWheel(delta, modifiers); });  in onMouseWheel()  argument
61     return this->signalLayers([=](Layer* layer) { return layer->onTouch(owner, state, x, y); });  in onTouch()  argument
65     this->visitLayers([=](Layer* layer) { layer->onUIStateChanged(stateName, stateValue); });  in onUIStateChanged()  argument
76         this->visitLayers([](Layer* layer) { layer->onPrePaint(); });  in onPaint()  argument
77         this->visitLayers([=](Layer* layer) { layer->onPaint(backbuffer.get()); });  in onPaint()  argument
93     this->visitLayers([=](Layer* layer) { layer->onResize(w, h); });  in onResize()  argument