Mark Summerfield's Advanced Qt Programming: Creating Great Software with C++ PDF

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By Mark Summerfield

ISBN-10: 0321635906

ISBN-13: 9780321635907

This e-book is geared toward latest C++/Qt programmers and provides rules and recommendations which are too complex or really good (although no longer inevitably difficult), for a primary e-book on Qt.

Qt has now grown to over seven-hundred sessions and good over one million phrases of documentation, some distance an excessive amount of to hide in one quantity. So rather than masking every little thing very thinly, the ebook makes a speciality of key parts of Qt know-how and attempts to supply extra entire insurance than is to be had elsewhere.

The publication is totally useful in emphasis, with each procedure illustrated by means of operating code. The examples exhibit Qt most sensible 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 will be downloaded from the book's online page. Amazon don't enable URLs so google for "qtrac" to discover it.)

The book's major subject matters are hybrid desktop/Internet functions, 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 lined. along with every one chapter's major topic, plenty of different sessions, tools, and strategies are used anywhere they make feel, to teach as many Qt gains as attainable. So even the main skilled Qt programmer should still notice facets of Qt they weren't conscious of, detect new concepts, and be encouraged with new ideas.</i>

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Extra info for Advanced Qt Programming: Creating Great Software with C++ and Qt 4 (Prentice Hall Open Source Software Development Series)

Sample text

But once we get to more than about fifteen menu items or widgets it becomes increasingly difficult to work out what the optimal accelerators should be. The ideal solution would be to get the computer to work out the accelerators for us, and that is the approach taken in this book. {hpp,cpp} module provides an algorithm that instantly computes optimal results, easily outperforming all the naïve algorithms. For example, to provide accelerators for a main window’s menus we can write this line near the end of the main window’s constructor: AQP::accelerateMenu(menuBar()); That’s all that is required.

Js script to extract the links to all the issues; these can then be used to populate the issues combobox. js script to extract the links to all the issue’s articles; these can be used to populate the articles combobox. We will look at the LinkFetcher class toward the end of this subsection. We created the scriptPathAndName() method because we want to have some flexibility regarding the scripts, as we will discuss in a moment. One final aspect is that we have set up a single shot timer. This will time out after a minute and call the networkTimeout() slot, so that we can provide an error message if it transpires that the Internet is unreachable.

The link data is retrieved from the QWebView’s 30 Chapter 1. Hybrid Desktop/Internet Applications QWebHistory. This holds a list of QWebHistoryItems, each of which has the web page’s title, the page’s URL, the page’s icon—Qt provides a default icon if one isn’t available from the web page’s server—and a few other pieces of information. The menu presents the links in reverse order, that is, from most recently visited at the top to least recently visited at the bottom. It also imposes a limit on the number of items shown, and eliminates duplicates—which means that the order of visiting is not strictly preserved.

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Advanced Qt Programming: Creating Great Software with C++ and Qt 4 (Prentice Hall Open Source Software Development Series) by Mark Summerfield


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