Qt英文文献Word文档下载推荐.docx

Qt英文文献Word文档下载推荐.docx

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TheGNUgeneralpubliclicense，itisfree.Thelatestversioncanbedownloadedhere。

FromMay11，2009onwards,NokiaQtSoftwareannouncedtheQtsourcecodelibraryopentothepublic，QtdevelopersthroughtheQtandQtprojectsrelatedtocontributecode，translation，sampleandothercontent,toguideandshapethefuturedevelopmentofQt.IntheintroductionofopenQtcodelibraryatthesametime，QtSoftwareinitsofficialwebsiteannouncedtheirproductplanning（Roadmap）.Theoverviewoftheresearchanddevelopmentprojectofnewfunction,showthestagedirectionsforfuturedevelopmentofQtpointofview，inordertoencouragethecommunitytoprovidefeedbackandcontributecode,toguideandshapethefutureofQt。

Qt4.6includesthefirstsupportfortheSymbian，andinitssupportingplatformaddedWindows7,AppleMacOS10.6（snowleopard）andtheupcomingMaemo6.QtonSymbianandMaemosupportfordeveloperscreatedusingthesamecodelibraryatthesametime,thetwoplatformforthedevelopmentopportunities.Abletocrosstheplatformtosharecodemeansthatdeveloperstodevelopapplicationslistedspeedwillbefaster,effectofthedeviceusergroupwillbewider。

QtMobilityprojectunderthenewQtAPItechnologypreviewwasreleasedatthesametimeintoday.ThesecrossplatformAPIprovidesdeveloperswithavarietyoffunctions，suchasnavigationequipmentlocalizationfunction,andinformationtransmittingandreceiving,contactsandnetworkconnectionmanagement。

Qt4。

6isinthe4。

5graphicalenhancementsonthebasisofthecreation,andfurtherstrengthenthegraphicsfunction，addingnewanimationframework（AnimationFramework）--includingintuitivestatemachinefunction——aswellasanewadvancedgraphicsfunctions，suchasopaque，shadow，flashandfilter.ThereleaseofQt4。

6，QtdevelopmentascrossplatformIDEQtCreatoralsoreleasedanupdatedversion.QtCreator1。

3andQt4。

6togetherconstitutetheQtSDK，includingthedevelopmentofcross—platformapplicationsforallofthefunctions。

QtgoodencapsulationmechanismmakesQtmodulardegreeishigh,canbereused，forusersdevelopmentisveryconvenient。

Qtprovidesasafetypecalledsignals/slotsinsteadofcallback，whichmakeseachelementofcollaborativeworkbetweenbecomesverysimple.Qtincludesupto250morethanC++,alsoprovidesatemplatebasedcollections,serialization，file，I/Odevice,directorymanagement,date/time.Evenaregularexpressionprocessingfunction。

XMLsupport.Webkitengine,canachievethelocalinterfacewithWebcontentintegration。

ButwhatmakestheQtinthefreesoftwareworldmanyWidgets（suchasLesstif,Gtk，EZWGL,Xforms,fltketc.）inthetalentshowingitselfisbasedonQtheavyweightsoftwareKDE

QtCreatorisacompleteintegrateddevelopmentenvironment（IDE）forcreatingapplicationswiththeQtapplicationframework。

Qtisdesignedfordevelopingapplicationsanduserinterfacesonceanddeployingthemacrossseveraldesktopandmobileoperatingsystems.ThispaperprovidesanintroductiontoQtCreatorandthefeaturesitprovidestoQtdevelopersduringtheapplicationdevelopmentlife-cycle.

IntroductiontoQtCreator

OneofthemajoradvantagesofQtCreatoristhatitallowsateamofdeveloperstoshareaprojectacrossdifferentdevelopmentplatforms（MicrosoftWindows®

MacOSX®

andLinux®

）withacommontoolfordevelopmentanddebugging.

ThemaingoalforQtCreatorismeetingthedevelopmentneedsofQtdeveloperswhoarelookingforsimplicity,usability,productivity,extendibilityandopenness,whileaimingtolowerthebarrierofentryfornewcomerstoQt。

ThekeyfeaturesofQtCreatorallowthedeveloperstoaccomplishthefollowingtasks:

GetstartedwithQtapplicationdevelopmentquicklyandeasilywithprojectwizards，andquicklyaccessrecentprojectsandsessions.

DesignQtwidget-basedapplicationuserinterfacewiththeintegratededitor，QtDesigner.

DevelopapplicationswiththeadvancedC++codeeditorthatprovidesnewpowerfulfeaturesforcompletingcodesnippets,refactoringcode,andviewingtheoutlineoffiles（thatis，thesymbolhierarchyofafile）。

Build，run，anddeployQtprojectsthattargetmultipledesktopandmobileplatforms，suchasMicrosoftWindows,MacOSX，Linux,Symbian,MeeGo，andMaemo.

DebugwiththeGNUandCDBdebuggersusingagraphicaluserinterfacewithincreasedawarenessofQtclassstructures.

Usecodeanalysistoolstocheckformemorymanagementissuesinyourapplications。

DeployapplicationstomobiledevicesandcreateapplicationinstallationpackagesforSymbian，MeeGo,andMaemodevicesthatcanbepublishedintheOviStoreandotherchannels。

Easilyaccessinformationwiththeintegratedcontext-sensitiveQtHelpsystem。

QtCreatorispartofQtQuick，whichallowsdesignersanddeveloperstocreatethekindofintuitive，modern-looking，fluiduserinterfacesthatareincreasinglyusedonmobilephones，mediaplayers，set—topboxesandotherportabledevices。

QtCreatorenablescollaborationbetweendesigners

anddevelopers。

SupportedOperatingSystems

QtCreatorinstallationpackagesareavailableforMicrosoftWindows,MacOSX,andLinux.QtCreatorcanberunonotherplatforms，butthatrequiresthecompilationofthepubliclyavailablesourcecode.BuildingandrunningQtCreatorfromsourcecodemayrequireaseparateinstallationofQtonyourcomputer.

WorkingwithQtCreator

WhenyoustartQtCreator，itopenstotheWelcomemode,whereyoucanopentutorialsandexampleprojectsorstarttheprojectwizardtocreateyourownprojects。

QtCreatormeetsitsdesigngoalsofsimplicity,ease—of—use,andproductivitybyrelyingontheconceptofmodes。

Theseadapttheuserinterfacetothedifferentapplicationdevelopmenttasksathand。

DeveloperscanusethemodeselectororkeyboardshortcutstoswitchtoaQtCreatormode。

Eachmodehasitsownviewthatshowsonlytheinformationrequiredforperformingagiventaskandprovidesonlythemostrelevantfeaturesandfunctionsrelatedtoit.Asaresult,themajorityoftheQtCreatorwindowareaisalwaysdedicatedtoactualapplicationdevelopmenttasks。

CreatingProjects

Tobeabletobuildandrunapplications，QtCreatorneedsthesameinformationasacompilerwouldneed.Thisinformationisspecifiedintheprojectbuildandrunsettings。

Whenthestepshavebeencompleted,QtCreatorautomaticallygeneratestheprojectwithrequiredheaders,sourcefiles，userinterfacedescriptionsandprojectfiles，asdefinedbythewizard。

Notonlydoesthewizardhelpnewusersgetupandrunningquickly,italsoenablesmoreexperienceduserstostreamlinetheirworkflowforthecreationofnewprojects。

Theconvenientuserinterfacemakesiteasiertoensurethataprojectbeginswiththecorrectconfigurationanddependencies.

DesigningUserInterface

QtCreatorprovidesafullyintegratedvisualeditor,QtDesigner。

QtDesignerisatoolfordesigningandbuildinggraphicaluserinterfacesfromQtwidgets.Userscancomposeandcustomizewidgetsordialogsandtestthoseusingdifferentstylesandresolutions。

WidgetsandformscreatedwithQtDesignerareintegratedseamlesslywithprogrammedcode,usingtheQtsignalsandslotsmechanism，whichletsuserseasilyassignbehaviortographicalelements.AllpropertiessetinQtDesignercanbechangeddynamicallywithinthecode.Furthermore，featuressuchaswidgetpromotionandcustompluginsallowuserstousetheirownwidgetswithQtDesigner.

QtDesignerisusedforeditinguserinterfacefiles.Itpresentsuserswithanintuitivedrag-and—dropinterfaceforcomposingnewuserinterfaces。

TheuserinterfacesthataredesignedwithQtDesignerarefullyfunctionalandcanbepreviewedimmediatelytoensurethatthedesignisasintended.Thereisnoneedtorecompiletheentireprojecttotestoutanewdesign.

Coding

Writing,editingandnavigatinginsourcecodearecoretasksinapplicationdevelopment。

Therefore,thecodeeditorisoneofthekeycomponentsofQtCreator。

ThecodeeditorcanbeusedintheEditmodetowritecode。

Thecodeeditoroffersanumberoffeaturesthathelpdevelopersmaintainreadabilityandcodingstyle:

Syntaxhighlightingforkeywords，symbols，andmacrosinC++files。

Inaddition,generichighlightingissupportedforothertypesoffiles.

Codecompletionforelements,properties,idsandcodesnippets。

Thisisalsosupportedfordevelopers’ownclassesinthecurrentproject。

Checkingcodesyntaxandmarkingerrors（withwavyunderlininginred）whileediting,makingitunnecessarytousecompilationsimplyasawaytofindtyposandsyntaxerrors。

Auto—indentationforsourcecodelayout.

Theabilitytocollapseandexpandfunctionsinthesourcecode（codefolding）。

TheLocatornavigationtoolforquickaccesstofiles，symb