bool CGUIModalScreen::isVisible() const { // any parent invisible? IGUIElement * parentElement = getParent(); while ( parentElement ) { if ( !parentElement->isVisible() ) return false; parentElement = parentElement->getParent(); } // if we have no children then the modal is probably abused as a way to block input if ( Children.empty() ) { return IGUIElement::isVisible(); } // any child visible? bool visible = false; core::list<IGUIElement*>::ConstIterator it = Children.begin(); for (; it != Children.end(); ++it) { if ( (*it)->isVisible() ) { visible = true; break; } } return visible; }
/* Function hasModalDialog() checks if we currently have a modal dialog open. */ bool hasModalDialog() { IGUIEnvironment* env = Device->getGUIEnvironment(); IGUIElement * focused = env->getFocus(); while ( focused ) { if ( focused->isVisible() && focused->hasType(EGUIET_MODAL_SCREEN) ) return true; focused = focused->getParent(); } return false; }
/* Handle key-up events */ bool OnKeyUp(irr::EKEY_CODE keyCode) { // Don't handle keys if we have a modal dialog open as it would lead // to unexpected application behaviour for the user. if ( hasModalDialog() ) return false; if (keyCode == irr::KEY_ESCAPE) { if (Device) { scene::ICameraSceneNode * camera = Device->getSceneManager()->getActiveCamera(); if (camera) { camera->setInputReceiverEnabled( !camera->isInputReceiverEnabled() ); } return true; } } else if (keyCode == irr::KEY_F1) { if (Device) { IGUIElement* elem = Device->getGUIEnvironment()->getRootGUIElement()->getElementFromId(GUI_ID_POSITION_TEXT); if (elem) elem->setVisible(!elem->isVisible()); } } else if (keyCode == irr::KEY_KEY_M) { if (Device) Device->minimizeWindow(); } else if (keyCode == irr::KEY_KEY_L) { UseLight=!UseLight; if (Model) { Model->setMaterialFlag(video::EMF_LIGHTING, UseLight); Model->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, UseLight); } } return false; }
/* Handle key-up events */ bool OnKeyUp(irr::EKEY_CODE keyCode) { if (keyCode == irr::KEY_ESCAPE) { if (Device) { scene::ICameraSceneNode * camera = Device->getSceneManager()->getActiveCamera(); if (camera) { camera->setInputReceiverEnabled( !camera->isInputReceiverEnabled() ); } return true; } } else if (keyCode == irr::KEY_F1) { if (Device) { IGUIElement* elem = Device->getGUIEnvironment()->getRootGUIElement()->getElementFromId(GUI_ID_POSITION_TEXT); if (elem) elem->setVisible(!elem->isVisible()); } } else if (keyCode == irr::KEY_KEY_M) { if (Device) Device->minimizeWindow(); } else if (keyCode == irr::KEY_KEY_L) { UseLight=!UseLight; if (Model) { Model->setMaterialFlag(video::EMF_LIGHTING, UseLight); Model->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, UseLight); } } return false; }