Read e-book online Advanced Qt Programming: Creating Great Software with C++ PDF

By Mark Summerfield

ISBN-10: 0321635906

ISBN-13: 9780321635907

Master Qt's strongest APIs, styles, and improvement Practices

Qt has developed right into a remarkably strong answer for cross-platform computer, net, and cellular improvement. in spite of the fact that, even the main skilled Qt programmers in basic terms use a fragment of its functions. additionally, useful information regarding Qt's most recent positive factors has been scarce—until now.

Advanced Qt Programming indicates builders precisely the way to take complete good thing about Qt 4.5's and Qt 4.6's most precious new APIs, software styles, and improvement practices. Authored through Qt professional Mark Summerfield, this e-book concentrates on recommendations that provide the main strength and adaptability with the least further complexity.

Summerfield focuses specially on model/view and graphics/view programming, hybrid desktop/Web functions, threading, and purposes incorporating media and wealthy textual content. all through, he offers practical, downloadable code examples, all verified on home windows, Mac OS X, and Linux utilizing Qt 4.6 (and so much validated on Qt 4.5) and designed to expect destiny models of Qt. The book

Walks via utilizing Qt with WebKit to create leading edge hybrid desktop/Internet applications

Shows the way to use the Phonon framework to construct robust multimedia applications

Presents state of the art recommendations for utilizing model/view desk and tree types, QStandardItemModels, delegates, and perspectives, and for developing customized desk and tree types, delegates, and views

Explains the right way to write more beneficial threaded courses with the QtConcurrent module and with the QThread class

Includes precise insurance of constructing wealthy textual content editors and documents

Thoroughly covers graphics/view programming: structure, home windows, widgets, layouts, scenes, and more

Introduces Qt 4.6's strong animation and kingdom computing device frameworks

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Extra info for Advanced Qt Programming: Creating Great Software with C++ and Qt 4

Example text

A (x) = 0 for all x ∈ X. 5 (Subset). A fuzzy set A is a subset of a fuzzy set B or A is contained in B if µA (x) ≤ µB (x) for all x ∈ X. This is denoted as A ⊆ B. 6 (Equality of fuzzy sets). e. µA (x) = µB (x) for all x ∈ X. 7 (Standard complement). The standard complement of a fuzzy set A is another fuzzy set, denoted by A , whose membership function is defined as µA (x) = 1 − µA (x) for all x ∈ X. 8 (Standard union). The standard union of two fuzzy sets A and B is a fuzzy set C whose membership function is given by µC (x) = max µA (x), µB (x) for all x ∈ X.

Let X be the universe whose generic element be denoted by x. A fuzzy set A in X is a function A : X −→ [0, 1]. We frequently use µA for the function A and say that the fuzzy set A is characterized by its membership function µA : X −→ [0, 1] which associates with each x in X, a real number µA (x) in [0,1]. The value µA (x) at x represents the grade of membership of x in A and is interpreted as the degree to which x belongs to A. Thus the closer the value of µA (x) is to 1, the more x belongs to A.

Further for the pair (T∞ , S∞ ) and the complementation given by the standard negation function, the intersection and union are not mutually distributive. This later result holds in somewhat more generality as stated in the below given theorem. 2 Let the pair (T, S) be the C-dual. If for the fuzzy set operations induced by the pair (T, S) the laws of excluded middle and contradiction hold with respect to the complement function C, then the intersection and union are not mutually distributive. 6, one may refer Dumitrescu, Lazzzerini and Jain [17].

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Advanced Qt Programming: Creating Great Software with C++ and Qt 4 by Mark Summerfield

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