{"id":82981,"date":"2020-05-27T07:42:33","date_gmt":"2020-05-27T05:42:33","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-frejmvorka-qt-5-15"},"modified":"2020-05-27T07:42:33","modified_gmt":"2020-05-27T05:42:33","slug":"reliz-frejmvorka-qt-5-15","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/reliz-frejmvorka-qt-5-15","title":{"rendered":"\u00c8 stata rilasciata la versione del framework Qt 5.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.qt.io\/blog\/qt-5.15-released\">Presentato<\/a><\/noindex> il rilascio del framework multiplatforma <noindex><a rel=\"nofollow\" href=\"https:\/\/www.qt.io\/\">Qt 5.15<\/a><\/noindex>. I testi sorgenti dei componenti Qt sono forniti sotto le licenze LGPLv3 e GPLv2. A dicembre sar\u00e0 pubblicato un nuovo ramo di Qt 6, nel quale <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51238\">si prevedono<\/a><\/noindex> ci saranno significative modifiche architettoniche. Per facilitare la futura transizione al ramo Qt 6, Qt 5.15 include implementazioni preliminari di alcune novit\u00e0 e avvisi riguardanti l'imminente cessazione del supporto per funzionalit\u00e0 previste per essere rimosse in Qt 6.<\/p>\n<p>Qt 5.15 \u00e8 classificato come una release con supporto a lungo termine (LTS). Pertanto, gli aggiornamenti per il ramo 5.15 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52259\">saranno pubblicati<\/a><\/noindex> \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043e \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u0433\u043e \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430, \u0442.\u0435. \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043f\u043e\u043b\u0433\u043e\u0434\u0430. \u0420\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0439 LTS-\u0446\u0438\u043a\u043b, \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0438\u0439 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435  \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u0442\u0440\u0451\u0445 \u043b\u0435\u0442, \u0431\u0443\u0434\u0435\u0442 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f\u043c\u0438 \u0441 \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u043e\u0439 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 (\u0434\u043b\u044f \u043e\u0431\u044b\u0447\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 &#8212; $5508 \u0432 \u0433\u043e\u0434 \u043d\u0430 \u043e\u0434\u043d\u043e\u0433\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430, \u0430 \u0434\u043b\u044f \u0441\u0442\u0430\u0440\u0442\u0430\u043f\u043e\u0432 \u0438 \u043c\u0430\u043b\u044b\u0445 \u043f\u0440\u0435\u0434\u043f\u0440\u0438\u044f\u0442\u0438\u0439 &#8212; $499 \u0432 \u0433\u043e\u0434). \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Qt Company \u0442\u0430\u043a\u0436\u0435 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52698\">considerato<\/a><\/noindex> la possibilit\u00e0 di passare a un modello di distribuzione di Qt, in cui tutte le release nei primi 12 mesi saranno disponibili solo per gli utenti con licenze commerciali. Ma finora questa idea non \u00e8 andata oltre la fase di discussione. <\/p>\n<p>Principali <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.qt.io\/New_Features_in_Qt_5.15\">novit\u00e0 di Qt 5.15<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> \u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0430 \u043f\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044e \u0430\u0431\u0441\u0442\u0440\u0430\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e API, \u043d\u0435 \u0437\u0430\u0432\u0438\u0441\u044f\u0449\u0435\u0433\u043e \u043e\u0442 3D API \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u043c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u043c \u043d\u043e\u0432\u043e\u0433\u043e \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0441\u0442\u0435\u043a\u0430 Qt \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0434\u0432\u0438\u0436\u043e\u043a \u0440\u0435\u043d\u0434\u0435\u0440\u0438\u043d\u0433\u0430 \u0441\u0446\u0435\u043d, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0439 \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0443 RHI (Rendering Hardware Interface) \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 Qt Quick \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0441 OpenGL, \u043d\u043e \u0438 \u043f\u043e\u0432\u0435\u0440\u0445 API Vulkan, Metal \u0438 Direct 3D.  \u0412 5.15 \u043d\u043e\u0432\u044b\u0439 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u0442\u0435\u043a \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u0432 \u0444\u043e\u0440\u043c\u0435 \u043e\u043f\u0446\u0438\u0438, \u0438\u043c\u0435\u044e\u0449\u0435\u0439 \u0441\u0442\u0430\u0442\u0443\u0441 &#171;Technology Preview&#187;.\n<li class=\"l\"> Garantita la piena supporto del modulo <noindex><a rel=\"nofollow\" href=\"https:\/\/doc-snapshots.qt.io\/qt5-5.15\/qtquick3d-index.html\">Qt Quick 3D<\/a><\/noindex>, da cui \u00e8 stato rimosso il marchio di sviluppo sperimentale. Qt Quick 3D offre un'API unificata per la creazione di interfacce utente basate su Qt Quick, che combinano elementi di grafica 2D e 3D. La nuova API consente di utilizzare QML per definire elementi 3D delle interfacce senza fare affidamento sul formato UIP. In Qt Quick 3D \u00e8 possibile utilizzare un unico runtime (Qt Quick), un layout della scena e un framework di animazione per 2D e 3D, mentre per lo sviluppo visivo dell'interfaccia si pu\u00f2 utilizzare Qt Design Studio. Il modulo affronta problemi come le elevate spese generali nell'integrazione di QML con contenuti provenienti da Qt 3D o 3D Studio e offre la possibilit\u00e0 di sincronizzare animazioni e trasformazioni a livello di singoli fotogrammi tra 2D e 3D.\n<p>Tra le nuove funzionalit\u00e0 introdotte in Qt Quick 3D, si segnala il supporto per effetti di post-elaborazione, API C++ per la gestione della geometria, un'API per la rotazione basata sulla classe QQuaternion e supporto per sorgenti luminose puntuali. Per valutare le diverse possibilit\u00e0 di Qt Quick 3D. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.qt.io\/blog\/introducing-qtquick3d-benchmarking-application\">preparati<\/a><\/noindex> un'applicazione dimostrativa speciale che mostra come \u00e8 possibile modificare i tipi e le fonti di illuminazione, utilizzare modelli complessi, manipolare trame, materiali e smoothing. Contemporaneamente <noindex><a rel=\"nofollow\" href=\"https:\/\/www.qt.io\/blog\/qt-design-studio-1.5-released\">designato<\/a><\/noindex> rilascio <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=49499\">ambiente<\/a><\/noindex> per progettare l'interfaccia utente con Qt Design Studio 1.5, che supporta completamente Qt Quick 3D.<\/p>\n<p><center><br \/>\n<div class=\"youtube-placeholder\" data-id=\"wuRH-lr_XBA\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/wuRH-lr_XBA\/hqdefault.jpg\" alt=\"Riproduci video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><\/p>\n<li class=\"l\"> In Qt QML, il lavoro \u00e8 stato <noindex><a rel=\"nofollow\" href=\"https:\/\/www.qt.io\/blog\/new-qml-language-features-in-qt-5.15\">concentrato<\/a><\/noindex> \u043d\u0430 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043a\u0435 \u043a Qt 6.  \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u0445 \u0441\u0432\u043e\u0439\u0441\u0442\u0432 \u0441 \u043f\u0440\u0438\u0437\u043d\u0430\u043a\u043e\u043c &#8216;required&#8217;, \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u0430. \u0412 \u0443\u0442\u0438\u043b\u0438\u0442\u0435 qmllint \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u043e \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0439 \u043e \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u0445 \u0432 QML-\u043a\u043e\u0434\u0435. \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u0443\u0442\u0438\u043b\u0438\u0442\u0430 qmlformat, \u0443\u043f\u0440\u043e\u0449\u0430\u044e\u0449\u0430\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 QML-\u043a\u043e\u0434\u0430 \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441  \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u044f\u043c\u0438 \u043f\u043e \u0441\u0442\u0438\u043b\u044e \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u041e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0430 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c  QML \u0441 \u0440\u0435\u0434\u0430\u043a\u0446\u0438\u0435\u0439 Qt \u0434\u043b\u044f <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52002\">microcontrollori<\/a><\/noindex>.\n<li class=\"l\"> In Qt Quick, nell'elemento Image \u00e8 stata aggiunta la supporto per gli spazi colore. In Qt Quick Shapes \u00e8 stato aggiunto un nuovo elemento PathText.<br \/>\nNel gestore del puntatore \u00e8 stata aggiunta la propriet\u00e0 cursorShape, tramite la quale \u00e8 possibile modificare la forma del cursore del mouse su sistemi desktop. \u00c8 stato aggiunto l'elemento HeaderView per semplificare l'aggiunta di intestazioni verticali e orizzontali alle tabelle basate su TableView. <\/p>\n<li class=\"l\"> Notevolmente migliorato il supporto per la decorazione delle finestre lato client (CSD), che consente all'applicazione di definire i propri elementi di decorazione delle finestre e posizionare contenuti arbitrari nell'intestazione della finestra.\n<li class=\"l\"> Stabilizzato il modulo <noindex><a rel=\"nofollow\" href=\"https:\/\/doc-snapshots.qt.io\/qt5-5.15\/qtlottieanimation-index.html\">Qt Lottie<\/a><\/noindex>, che fornisce un'API avanzata per QML, consentendo di disegnare grafica e animazioni esportate in formato JSON tramite il plugin Bodymovin di Adobe After Effects. Grazie a QtLottie, un designer pu\u00f2 preparare effetti animati nel proprio ambiente preferito, mentre uno sviluppatore pu\u00f2 collegare direttamente i file esportati all'interfaccia delle applicazioni su QtQuick. QtLottie include un micro motore integrato per l'esecuzione delle animazioni, il ritaglio, l'elaborazione dei livelli e altri effetti. Il motore \u00e8 accessibile tramite l'elemento QML LottieAnimation, che pu\u00f2 essere controllato dal codice QML come qualsiasi altro elemento di QtQuick.\n<li class=\"l\"> Il motore del browser Qt WebEngine \u00e8 stato aggiornato alla base di codice <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52312\">Chromium 80<\/a><\/noindex> (nella branch 5.14 \u00e8 stato utilizzato Chromium 77, l'ultima versione \u00e8 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52993\">Chromium 83<\/a><\/noindex>).\n<li class=\"l\"> Nel modulo Qt 3D sono stati migliorati gli strumenti di profilazione e debugging.\n<li class=\"l\"> In Qt Multimedia \u00e8 stato aggiunto il supporto per il rendering su pi\u00f9 superfici.\n<li class=\"l\"> Nella GUI di Qt, le operazioni di ridimensionamento e trasformazione delle immagini ora vengono eseguite in modalit\u00e0 multithreading in molti casi.\n<li class=\"l\"> In Qt Network \u00e8 stata aggiunta la supporto per timeout configurabili e <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ietf.org\/rfc\/rfc5077.txt\">shortcut di sessione<\/a><\/noindex>  in TLS 1.3 (Session Ticket, che permettono di riprendere una sessione senza salvare lo stato sul server).\n<li class=\"l\"> \u00c8 stata fornita la possibilit\u00e0 di far funzionare Qt Core, QRunnable e QThreadPool con std::function. \u00c8 stato aggiunto un nuovo metodo QFile::moveToTrash() per spostare elementi nel cestino tenendo conto delle specifiche delle diverse piattaforme.\n<li class=\"l\"> In Qt per Android <noindex><a rel=\"nofollow\" href=\"https:\/\/www.qt.io\/blog\/whats-new-with-qt-for-android\">aggiunta<\/a><\/noindex> supporto per i dialoghi nativi per l'apertura e il salvataggio dei file.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53031\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u043a\u0440\u043e\u0441\u0441\u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 Qt 5.15. \u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 Qt \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044f\u043c\u0438 LGPLv3 \u0438 GPLv2. \u0412 \u0434\u0435\u043a\u0430\u0431\u0440\u0435 \u0431\u0443\u0434\u0435\u0442 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u043d\u043e\u0432\u0430\u044f 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