{"id":120175,"date":"2024-10-14T19:09:08","date_gmt":"2024-10-14T17:09:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-frejmvorka-qt-6-8"},"modified":"2024-10-14T19:09:08","modified_gmt":"2024-10-14T17:09:11","slug":"reliz-frejmvorka-qt-6-8","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/reliz-frejmvorka-qt-6-8","title":{"rendered":"Vyd\u00e1n\u00ed r\u00e1mce Qt 6.8","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Spole\u010dnost Qt Company vydala verzi frameworku Qt 6.8, ve kter\u00e9 pokra\u010duje pr\u00e1ce na stabilizaci a roz\u0161\u00ed\u0159en\u00ed funkcionality v\u011btve Qt 6. V Qt 6.8 byla p\u0159id\u00e1na podpora pro platformy Windows 10+, macOS 12+, Linux (Ubuntu 22.04\/24.04, openSUSE 15.5, SUSE 15 SP5, RHEL 8.8\/9.2, Debian 11.6), iOS 16+, Android 9+(API 23+), webOS, WebAssembly, INTEGRITY, VxWorks, FreeRTOS a QNX. Zdrojov\u00e9 k\u00f3dy komponent\u016f Qt jsou poskytov\u00e1ny pod licencemi LGPLv3 a GPLv2.     <\/p>\n<p>Qt 6.8 z\u00edskal statut LTS vyd\u00e1n\u00ed, pro kter\u00e9 budou aktualizace p\u0159ipravov\u00e1ny po dobu p\u011bti let pro majitele komer\u010dn\u00ed licence, co\u017e je o dva roky v\u00edce ne\u017e u p\u0159edchoz\u00edch LTS vyd\u00e1n\u00ed. Pro nekomer\u010dn\u00ed u\u017eivatele bude doba podpory \u010din\u00edt p\u016fl roku (do p\u0159\u00edpravy nov\u00e9ho v\u00fdznamn\u00e9ho vyd\u00e1n\u00ed). Podpora p\u0159edchoz\u00ed LTS v\u011btve Qt 6.5 potrv\u00e1 do kv\u011btna 2026, zat\u00edmco podpora p\u0159edminul\u00e9 LTS v\u011btve Qt 6.2 byla ukon\u010dena 30. z\u00e1\u0159\u00ed 2024. V\u011btve Qt 5.15 bude podporov\u00e1na do kv\u011btna 2025.       <\/p>\n<p>Hlavn\u00ed zm\u011bny ve Qt 6.8:  <\/p>\n<ul>\n<li class=\"l\"> Byl stabilizov\u00e1n a p\u0159eveden do kategorie pln\u011b podporovan\u00fdch modul Qt Graphs, ur\u010den\u00fd pro vytv\u00e1\u0159en\u00ed r\u016fzn\u00fdch typ\u016f 2D a 3D graf\u016f, stejn\u011b jako vizualizaci velk\u00fdch kolekc\u00ed rychle se m\u011bn\u00edc\u00edch dat. Modul se vyv\u00edj\u00ed jako univerz\u00e1ln\u00ed n\u00e1hrada za star\u00fd modul Qt DataVisualization, z\u00e1visl\u00fd na OpenGL, a modul Qt Charts. Nov\u00fd modul vyu\u017e\u00edv\u00e1 Qt Quick 3D a renderovac\u00ed engine RHI (Rendering Hardware Interface), podporuj\u00edc\u00ed r\u016fzn\u00e9 3D API (OpenGL, Vulkan, Metal a Direct 3D).\n<p>Ve srovn\u00e1n\u00ed s minul\u00fdm vyd\u00e1n\u00edm byly do Qt Graphs 3D p\u0159id\u00e1ny optimalizace v\u00fdkonu, byla zaji\u0161t\u011bna podpora transparency na trojrozm\u011brn\u00fdch grafech (Bars3D), roz\u0161\u00ed\u0159eny mo\u017enosti \u0159\u00edzen\u00ed um\u00edst\u011bn\u00ed a stylizace \u0161t\u00edtk\u016f a z\u00e1hlav\u00ed, zlep\u0161eno vykreslov\u00e1n\u00ed lini\u00ed naviga\u010dn\u00ed m\u0159\u00ed\u017eky. V Qt Graphs 2D byla p\u0159id\u00e1na mo\u017enost vykreslov\u00e1n\u00ed vlastn\u00edch typ\u016f sloupcov\u00fdch diagram\u016f (pomoc\u00ed QML komponent), p\u0159id\u00e1na podpora pro stohovan\u00e9 sloupcov\u00e9 diagramy, roz\u0161\u00ed\u0159eny prost\u0159edky pro zobrazen\u00ed \u0161t\u00edtk\u016f. Bylo unifikov\u00e1no API pro vyu\u017eit\u00ed t\u00e9mat ve 2D a 3D grafech. Specifick\u00e9 pro widgety vol\u00e1n\u00ed byla p\u0159esunuta do modulu Qt Graphs Widgets.      <\/p>\n<li class=\"l\"> Stabilizov\u00e1n a p\u0159eveden do kategorie pln\u011b podporovan\u00fdch modul QtHttpServer, kter\u00fd umo\u017e\u0148uje integrovat do aplikac\u00ed funk\u010dnost HTTP serveru, jen\u017e podporuje HTTP\/1.1, TLS\/HTTPS, WebSockets, zpracov\u00e1n\u00ed chyb, sm\u011brov\u00e1n\u00ed po\u017eadavk\u016f na z\u00e1klad\u011b parametr\u016f v URL (QHttpServerRouter) a REST API. Ve srovn\u00e1n\u00ed s p\u0159edchoz\u00ed verz\u00ed byla v t\u0159\u00edd\u011b QNetworkAccessManager implementov\u00e1na mo\u017enost odes\u00edl\u00e1n\u00ed HTTP po\u017eadavk\u016f p\u0159es m\u00edstn\u00ed socket. Byla poskytnuta podpora pro pou\u017eit\u00ed t\u0159\u00eddy QFormDataBuilder pro zjednodu\u0161en\u00ed p\u0159enosu n\u011bkolika soubor\u016f dat (nap\u0159. textov\u00fdch dat a p\u0159ipojen\u00e9ho souboru) v r\u00e1mci jednoho HTTP po\u017eadavku (HTTP multi-part).\n<li class=\"l\"> Stabilizov\u00e1n a p\u0159eveden do kategorie pln\u011b podporovan\u00fdch modul Qt GRPC, kter\u00fd umo\u017e\u0148uje vy\u017eadovat slu\u017eby prost\u0159ednictv\u00edm protokolu gRPC.\n<li class=\"l\"> Stabilizov\u00e1n a p\u0159eveden do kategorie pln\u011b podporovan\u00fdch modul Qt Protobuf, ur\u010den\u00fd pro serializaci t\u0159\u00edd Qt pomoc\u00ed protokolu Protocol Buffer.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora pro mobiln\u00ed platformy Android 14 a iOS 18.\n<li class=\"l\"> Byla poskytnuta mo\u017enost v\u00fdvoje aplikac\u00ed pro desktopov\u00e9 syst\u00e9my Linux a Windows s procesory ARM, stejn\u011b jako pro 3D br\u00fdle Apple Vision Pro a Meta Quest 3 XR.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora Raspberry Pi 5, NVIDIA AGX Orin a n\u011bkter\u00fdch desek zalo\u017een\u00fdch na SoC NXP, Toradex a STM. P\u0159id\u00e1na podpora pro RISC-V desky StarFive VisionFive 2.\n<li class=\"l\"> Byly roz\u0161\u00ed\u0159eny mo\u017enosti pro vytv\u00e1\u0159en\u00ed o\u0159ezan\u00fdch sestaven\u00ed Qt, kter\u00e1 mohou b\u00fdt pou\u017e\u00edv\u00e1na na za\u0159\u00edzen\u00edch s mal\u00fdm mno\u017estv\u00edm pam\u011bti. Nap\u0159\u00edklad vypnut\u00edm nepou\u017e\u00edvan\u00fdch funkc\u00ed a komponent Qt lze dos\u00e1hnout zkr\u00e1cen\u00ed velikosti sestaven\u00ed v trval\u00e9m \u00falo\u017ei\u0161ti o 77 % a sn\u00ed\u017een\u00ed spot\u0159eby RAM o 32 %, a tak\u00e9 v\u00fdrazn\u011b zkr\u00e1tit \u010das spu\u0161t\u011bn\u00ed.\n<li class=\"l\"> V modulu Qt Multimedia na platform\u011b Linux byla implementov\u00e1na podpora pro zachycen\u00ed obrazovky pomoc\u00ed t\u0159\u00eddy QScreenCapture v prost\u0159ed\u00edch zalo\u017een\u00fdch na protokolu Wayland, s pou\u017eit\u00edm slu\u017eby ScreenCast a syst\u00e9mu port\u00e1l\u016f XDG Desktop. Byly p\u0159id\u00e1ny t\u0159\u00eddy QVideoFrameInput, QAbstractVideoBuffer a QAudioBufferInput, pomoc\u00ed kter\u00fdch je mo\u017en\u00e9 realizovat odes\u00edl\u00e1n\u00ed vlastn\u00edch multimedi\u00e1ln\u00edch dat do nahr\u00e1vac\u00edho sezen\u00ed (QMediaCaptureSession), stejn\u011b jako t\u0159\u00edda QAudioBufferOutput pro p\u0159ipojen\u00ed handler\u016f, kter\u00e9 p\u0159ij\u00edmaj\u00ed zvukov\u00e1 data ve f\u00e1zi po dek\u00f3dov\u00e1n\u00ed.\n<li class=\"l\"> Byl p\u0159id\u00e1n modul Qt Quick Vector Image, kter\u00fd umo\u017e\u0148uje integrovat do sc\u00e9n Qt Quick vektorov\u00e9 obr\u00e1zky ve form\u00e1tu SVG, co\u017e lze vyu\u017e\u00edt nap\u0159\u00edklad k vytv\u00e1\u0159en\u00ed \u0161k\u00e1lovateln\u00fdch prvk\u016f u\u017eivatelsk\u00e9ho rozhran\u00ed, kter\u00e9 nez\u00e1vis\u00ed na rozli\u0161en\u00ed a velikosti obrazovky.  <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed r\u00e1mce Qt 6.8\" src=\"\/wp-content\/uploads\/2024\/10\/66f0a3aebb4fff6f4f93f23f11e15395.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Byl p\u0159id\u00e1n modul Qt Quick 3D XR pro vytv\u00e1\u0159en\u00ed aplikac\u00ed pro platformy virtu\u00e1ln\u00ed a roz\u0161\u00ed\u0159en\u00e9 reality pomoc\u00ed technologi\u00ed Qt Quick 3D. Pro organizaci interakce s 3D prost\u0159ed\u00edmi, vytvo\u0159en\u00fdmi pomoc\u00ed Qt Quick 3D, je podporov\u00e1no pou\u017eit\u00ed za\u0159\u00edzen\u00ed pro sledov\u00e1n\u00ed pohybu rukou a VR ovlada\u010d\u016f. Pro vizualizaci mohou b\u00fdt pou\u017eity br\u00fdle Apple VisionPro nebo 3D headsety s podporou standardu OpenXR, jako jsou Meta Quest 2\/3.      <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed r\u00e1mce Qt 6.8\" src=\"\/wp-content\/uploads\/2024\/10\/707b202c825b69d4ebd7c3d05b9fc3fe.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> V Qt Quick byly p\u0159id\u00e1ny optimalizace, kter\u00e9 zrychluj\u00ed vykreslov\u00e1n\u00ed slo\u017eit\u00fdch sc\u00e9n. Ve t\u0159\u00edd\u011b TableView se objevila mo\u017enost p\u0159esouv\u00e1n\u00ed sloupc\u016f a \u0159\u00e1dk\u016f. Typy Image a BorderImage nyn\u00ed podporuj\u00ed asynchronn\u00ed na\u010d\u00edt\u00e1n\u00ed obr\u00e1zk\u016f (star\u00fd obr\u00e1zek z\u016fst\u00e1v\u00e1, dokud se nena\u010dte nov\u00fd).\n<li class=\"l\"> V modulu Qt Quick Effect Maker byla p\u0159id\u00e1na podpora animov\u00e1n\u00ed sprite\u016f, zak\u0159iven\u00ed prvk\u016f kolem kruhu a jejich vyu\u017eit\u00ed v efektech z\u00e1\u0159en\u00ed a selektivn\u00edho rozmaz\u00e1n\u00ed (masked blur).\n<li class=\"l\"> V modulu Qt Quick Shapes p\u0159i pln\u011bn\u00ed kontury je nyn\u00ed povoleno pou\u017e\u00edv\u00e1n\u00ed jak\u00fdchkoli poskytovatel\u016f textur v prvc\u00edch s typem ShapePath. Do t\u0159\u00eddy QQuickRenderTarget byly p\u0159id\u00e1ny nov\u00e9 metody pro spr\u00e1vu zpracov\u00e1n\u00ed textur a zjednodu\u0161en\u00ed integrace Qt Quick 3D s extern\u00edmi enginy, frameworky a API.\n<li class=\"l\"> V Qt Quick Controls byl zaveden nov\u00fd styl Fluent WinUI3, kter\u00fd umo\u017e\u0148uje vytvo\u0159it u\u017eivatelsk\u00e9 rozhran\u00ed, kter\u00e9 vypad\u00e1 jako Windows 11 na jak\u00fdchkoli platform\u00e1ch. V macOS byla realizov\u00e1na mo\u017enost pou\u017eit\u00ed glob\u00e1ln\u00edho menu poskytovan\u00e9ho platformou v rozhran\u00edch, kter\u00e1 jsou vytv\u00e1\u0159ena pomoc\u00ed Quick MenuBar.     <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed r\u00e1mce Qt 6.8\" src=\"\/wp-content\/uploads\/2024\/10\/db57dec63024d6f51f3e854837a63939.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> V Qt Quick 3D byla vylep\u0161ena kresba st\u00edn\u016f d\u00edky pou\u017eit\u00ed kask\u00e1dov\u00fdch st\u00ednov\u00fdch map a jemn\u00e9 filtraci st\u00edn\u016f. Do typu PrincipledMaterial byly p\u0159id\u00e1ny nov\u00e9 vlastnosti. Byla poskytnuta mo\u017enost pou\u017eit\u00ed stejn\u00fdch vlastnost\u00ed ve vlastn\u00edch materi\u00e1lech, kter\u00e9 jsou k dispozici v materi\u00e1lech na b\u00e1zi typu PrincipledMaterial.    <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed r\u00e1mce Qt 6.8\" src=\"\/wp-content\/uploads\/2024\/10\/fded9f6cacf5cd20fcc86d76d1be1ea2.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Do modulu Qt Network Auth byla p\u0159id\u00e1na t\u0159\u00edda QOAuthUriSchemeReplyHandler pro vytv\u00e1\u0159en\u00ed obslu\u017en\u00fdch rutin p\u0159esm\u011brov\u00e1n\u00ed na jin\u00fd sch\u00e9ma URI p\u0159i autentizaci pomoc\u00ed OAuth 2.0. Do t\u0159\u00eddy QOAuth2AuthorizationCodeFlow byla p\u0159id\u00e1na podpora roz\u0161\u00ed\u0159en\u00ed OAuth PKCE (Proof Key for Code Exchange).\n<li class=\"l\"> Do t\u0159\u00eddy QDnsLookup byla p\u0159id\u00e1na mo\u017enost odes\u00edlat dotazy pomoc\u00ed \u201eDNS over TLS\u201c, byla implementov\u00e1na podpora DNS z\u00e1znam\u016f TLSA (TLS Certificate Association) a zaji\u0161t\u011bno informov\u00e1n\u00ed klienta o prov\u00e1d\u011bn\u00ed verifikace dat DNS serverem.\n<li class=\"l\"> V Qt Core byla p\u0159id\u00e1na t\u0159\u00edda QChronoTimer s obalovou vrstvou pro knihovnu std::chrono, kter\u00e1 umo\u017e\u0148uje dos\u00e1hnout vy\u0161\u0161\u00ed p\u0159esnosti operac\u00ed s \u010dasem. Byla implementov\u00e1na mo\u017enost zm\u011bny velikosti QString, QByteArray a QList bez inicializace dat. V QHash byla p\u0159id\u00e1na podpora ukl\u00e1d\u00e1n\u00ed dat r\u016fzn\u00fdch typ\u016f QString a QStringView v jednom hash.\n<li class=\"l\"> V Qt GUI byla poskytnuta mo\u017enost p\u0159eps\u00e1n\u00ed nastaven\u00ed syst\u00e9mov\u00e9ho barevn\u00e9ho sch\u00e9matu, nap\u0159\u00edklad pro v\u00fdb\u011br tmav\u00e9ho nebo sv\u011btl\u00e9ho re\u017eimu, a tak\u00e9 nastaven\u00ed akc\u00ed vedouc\u00edch k vyvol\u00e1n\u00ed kontextov\u00e9ho menu.\n<li class=\"l\"> V Qt Sql ovlada\u010de datab\u00e1z\u00ed PostgreSQL a MySQL\/MariaDB nyn\u00ed spr\u00e1vn\u011b zpracov\u00e1vaj\u00ed \u010das a data v situaci, kdy m\u00e1 klient i server <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-newyork\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2789\">serveru<\/a> vybr\u00e1ny r\u016fzn\u00e9 \u010dasov\u00e9 z\u00f3ny.\n<li class=\"l\"> Qt WebEngine byly p\u0159id\u00e1ny nov\u00e9 t\u0159\u00eddy: QWebEngineFrame pro pr\u00e1ci na \u00farovni jednotliv\u00fdch iframe blok\u016f; QWebEngineClientHints pro spr\u00e1vu identifikace prohl\u00ed\u017ee\u010de; QWebEnginePermission pro spr\u00e1vu p\u0159\u00edstupov\u00fdch pr\u00e1v v\u00e1zan\u00fdch na webov\u00e9 str\u00e1nky.\n<li class=\"l\"> V Qt Widgets bylo vylep\u0161eno vykreslov\u00e1n\u00ed widget\u016f na obrazovk\u00e1ch s vysokou hustotou pixel\u016f (high-DPI).\n<li class=\"l\"> Gener\u00e1tor dokumentace QDoc byl p\u0159eveden z C API na C++ API a nyn\u00ed vy\u017eaduje minim\u00e1ln\u011b Clang 17. Byly p\u0159id\u00e1ny nov\u00e9 p\u0159\u00edkazy, jako \u201e\\keyword\u201c a \u201e\\nativetype\u201c.\n<li class=\"l\"> V r\u00e1mci pr\u00e1ce na zvy\u0161ov\u00e1n\u00ed stability a v\u00fdkonu LTS verze bylo provedeno v\u00edce ne\u017e 500 oprav a optimalizac\u00ed.      <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62043\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Qt Company \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 Qt 6.8, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0430 \u043f\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0430\u0446\u0438\u0438 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