By Mark Summerfield
This booklet is geared toward latest C++/Qt programmers and offers principles and ideas which are too complex or really good (although no longer unavoidably difficult), for a primary ebook on Qt.
Qt has now grown to over seven hundred periods and good over 1000000 phrases of documentation, a long way an excessive amount of to hide in one quantity. So rather than protecting every thing very thinly, the publication specializes in key components of Qt expertise and attempts to supply extra complete assurance than is on hand elsewhere.
The publication is totally functional in emphasis, with each method illustrated via operating code. The examples convey Qt top practices, and feature been proven on Linux, Mac OS X, and home windows, utilizing Qt 4.6 and the place attainable (e.g., utilizing #if QT_VERSION), Qt 4.5. (The examples and a pattern bankruptcy may be downloaded from the book's website. Amazon don't enable URLs so google for "qtrac" to discover it.)
The book's major subject matters are hybrid desktop/Internet purposes, threading, wealthy textual content dealing with, Qt's graphics/view structure, and Qt's model/view structure (to which 4 chapters are devoted), even though many different subject matters are coated. in addition to each one chapter's major topic, plenty of different sessions, equipment, and methods are used anywhere they make experience, to teach as many Qt good points as attainable. So even the main skilled Qt programmer may still become aware of points of Qt they weren't conscious of, become aware of new options, and be encouraged with new ideas.</i>
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Additional resources for Advanced Qt Programming: Creating Great Software with C++ and Qt 4 (Prentice Hall Open Source Software Development Series)
If the user presses the New button a new pair of matrices is generated. 12. , white on black), and with a focus rectangle—here, for example, the cell containing value 116. The web page is made up of a mixture of HTML elements and standard and custom Qt widgets. The title text, the “Name:” label, and the large “+” and “=” signs are all standard HTML elements. The name line edit, the buttons, and the result label could also have been HTML elements, but for the sake of the example we have used standard Qt widgets.
And like any other QIODevice such as a ﬁle, we can read data from it, which by default is returned in a QByteArray. The QDomDocument:: setContent() method can read XML from a QByteArray, a QString, or from a QIODevice, so we are able to directly pass it the QNetworkReply for parsing. Internet-Aware Widgets 15 Keyboard Accelerators (for non-Mac OS X platforms) Keyboard accelerators are important to users who are fast typists and to those who cannot—or don’t want to—use the mouse. , Alt+F for the File menu).
This is helpful to users since web pages often contain widgets of their own (buttons, line editors, and so on), so by framing the browser window we make clear the boundary between the web page and the application in which it is embedded. We allow the class’s clients to pass in their own QWebPage if they prefer; otherwise QWebView creates a QWebPage for itself. This is useful if we want to use a QWebPage subclass—something we will see in the “Embedding Qt Widgets in Web Pages” subsection (➤ 44).
Advanced Qt Programming: Creating Great Software with C++ and Qt 4 (Prentice Hall Open Source Software Development Series) by Mark Summerfield