The book of qt 4 the art of building qt applications - phần 6 doc

... weconstruct thedescription of theaddressbook entryusingthe <table>tag. Each rowof thetable consists of twocells,one of which contains thenameofthe address book field (the key)and theother ,the matching ... “Interview” Q_UNUSED(parent); returnaddressBook.count() -2 ; } To determine thenumber of columns,welook at thedataset from th efirstlineof theCSV file. TheQStringList::cou...

Ngày tải lên: 13/08/2014, 08:21

... clear of the zebra. 1 The book appeared finished at the end of the previous step, but there was some awkwardness about the frame. It lines up too tightly with the belly of the zebra, and there’s ... by the position of his or her name on the cover of the books. If it goes above the title, they’ve made it. There are other criteria as well, of cou...

Ngày tải lên: 08/08/2014, 23:20

... 108 6 Contents 6Dialogs 161 6. 1Modal Dialogs 161 6. 2Non-modal Dialogs 163 6. 2.1UsabilityProblems 163 6. 3Semi-modal Dialogs 1 64 6. 4Avoiding Bloated Dialogs 1 64 6. 5Ready-made DialogsinQt 166 6. 5.1Message Dialogs 166 6. 5.2Error ... theMainWindowwithYourSourceCode 110 4. 4Making theMostofthe Status Bar 118 4. 4.1TemporaryMessages 120 4. 4.2NormalMessages. 120 4. 4.3Per...

Ngày tải lên: 28/04/2014, 16:56

... recycled paper Qt 4 Qt 4 THE ART OF BUILDING Qt APPLICATIONS DANIEL MOLKENTIN THE BOOK of THE BOOK of Qt 4 THE BOOK of THE BOOK of Qt 4 ® MOLKENTIN 1 Basics,Tools, and First Code Several Qt classeshaveQObject ... thechosencategory.Whenthe user changesthe categoryon the 34 Contents 4. 3.3Integrating theMainWindowwithYourSourceCode 110...

Ngày tải lên: 13/08/2014, 08:21

... now ByteConverterDialog decEdit textChanged() setText() hexEdit textChanged() setText() binEdit textChanged() setText() decChanged() hexChanged() binChanged() We can connect thesignals andslots of theline-edit widgets from theByteCon- verterDialog to thesignals andslots of theByteConverter class, for example, the hexChanged()signalofthe decEdit object ... andOpenGLmodules; anddetailedde...

Ngày tải lên: 13/08/2014, 08:21

... areasofthe window,orposition them floatingover themainwindow.Iftheyaredocked, thelatter haveasplitter (see Chapter 5.3onpage 150), withwhich theusercan fine-tune thesizeratio of thedockwindowto themainwindow,ifnecessary.Dockwindowsalsohavea handle ... usingthe Designer,which allowsthe basicgraphical frameworkofmostapplications to be puttogether “bymouseclick” in Qt versions 4. 1and later ....

Ngày tải lên: 13/08/2014, 08:21

... ClickSplitterHandle::mouseDoubleClickEvent()wefirstdetermine thealignment of thesplitter.Weobtainthe positionofthe splitter,using theQSplitter::indexOf() method. This is also thepositionofthe widgetlyingtothe rightof(or directly beneath) thesplitter. Forreasons ... SLOT(showExtension(bool))); dlg.exec(); returnapp.exec(); } Abuttonwiththe inscriptionExpand/Collapseallowsthe user to folddowna...

Ngày tải lên: 13/08/2014, 08:21

... query.Thisisfollowed bythelistofstrings to be displayed.Then comesthe indexof thelistele ment that thedrop-downwidgetdisplaysatthe be- ginning .The next-to-lastparameter specifies whether theusercan add ... andisdescribedinRFCs2 045 , 2 0 46 , and2 047 . 1 94 6. 5 Ready-made DialogsinQt 6. 5.4Input Dialogs Forsimplequeries,Qtprovides various template inputdialogs,consistingofasuit- able in...

Ngày tải lên: 13/08/2014, 08:21

... nowconnect theclicked()signalofthe Screenshot!buttontothe slot that prepares thescreenshot,and thesignalofthe Printbuttontothe slot that enables theconfiguration of theprintingparameters. Then wecallgrabDesktop(), ... details in parts of 1 16 th of a degree, for reasons of precision. angle therefore contains the actual number of degrees, multiplied by 16. We then select the cu...

Ngày tải lên: 13/08/2014, 08:21

... QStringobjects, making useofthe toLocal8Bit()method internally. 11.4Startingand ControllingProcesses Nowandagainyou maywanttomake useofthe services of command-linebased programs, particularlyon Unix-based operating ... andalsocontainsaclassQTcpServer th at enablesthe implementation of TCP-basedservices.Inaddition theQtNetworkalsocontainsfullimplementa- tions, in theclassesQHttp (see page...

Ngày tải lên: 13/08/2014, 08:21