Download E-books The Book of Qt 4: The Art of Building Qt Applications PDF

By Daniel Molkentin

Cross-platform improvement is one of those holy grail, and Trolltech's Qt toolkit may be the main promising resolution but to this improvement problem. Qt is prevalent for the advance of GUI purposes in addition to console instruments and servers, and it really is particularly attractive to programmers who have to write cross-platform purposes to run on Linux/Unix, Mac, and home windows machines with no need to rewrite for every platform.

The e-book of Qt 4 bargains an in-depth clarification of Qt four that is going past the typical specialize in C++ programming. writer Daniel Molkentin makes use of functional examples to provide an explanation for good points just like the signal/slot inspiration and the development method, as he courses you thru constructing purposes with and with out Qt's graphical GUI builder, Qt fashion designer. And as a center KDE developer, Molkentin's head is stuffed with real-world difficulties and options that he peppers liberally all through The publication of Qt 4, making it a source that you're going to seek advice again and again. you will discover insurance of:

  • Tools for growing dialogs
  • GUI layout with the Qt Designer
  • Widget format and conversation construction
  • Data visualization utilizing Qt's model/view concept
  • The QtSql module and the photos library Arthur
  • File dealing with, XML, approaches, and community connections
  • Databases and threading
  • Event dealing with and utilizing drag and drop
  • Internationalization and debugging

As good as plenty of worthy tricks on the best way to use Qt's datatypes, packing containers, and algorithms and the way to boost undemanding applications.

Whether you are already a Qt developer or you are simply contemplating Qt for cross-platform improvement, you will discover The e-book of Qt 4 to be indispensable.

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Additional info for The Book of Qt 4: The Art of Building Qt Applications

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Fifty eight how you can Use the Documentation . . . . . . . . . . . . . . . . . . . fifty nine five Contents 2 The instruments had to Create Dialogs 2. 1 2. 2 What’s the adaptation among Dialogs and Widgets? . . . . . . . sixty two 2. 1. 1 Inheriting from QObject . . . . . . . . . . . . . . . . . . . sixty four 2. 1. 2 extra advanced Layouts . . . . . . . . . . . . . . . . . . . . sixty five 2. 1. three expanding Usability . . . . . . . . . . . . . . . . . . . . . sixty eight 2. 1. four imposing Slots . . . . . . . . . . . . . . . . . . . . . 70 Separation of GUI and Processing good judgment . . . . . . . . . . . . . . . seventy four 2. 2. 1 replacement layout . . . . . . . . . . . . . . . . . . . . . . seventy four 2. 2. 2 pointing out and Sending Out signs . . . . . . . . . . . . . seventy six 2. 2. three utilizing your personal signs . . . . . . . . . . . . . . . . . . . seventy nine three GUI layout utilizing the Qt clothier three. 1 eighty one Dialogs “By Mouse click on” . . . . . . . . . . . . . . . . . . . . . . . eighty one three. 1. 1 Making Layouts With the clothier . . . . . . . . . . . . . eighty four three. 1. 2 the valuables Editor . . . . . . . . . . . . . . . . . . . . . . eighty five three. 1. three The Preview . . . . . . . . . . . . . . . . . . . . . . . . . . 88 three. 1. four Signal/Slot Connections . . . . . . . . . . . . . . . . . . . 88 three. 1. five The Tab series . . . . . . . . . . . . . . . . . . . . . . 89 three. 1. 6 Shortcuts and neighbors . . . . . . . . . . . . . . . . . . . . ninety Integrating Designer-generated records into Your Qt undertaking . . . . . ninety one three. 2. 1 utilizing Designer-generated periods as Helper sessions . . . . ninety two three. 2. 2 continually Having Designer-generated Widgets on hand . . . ninety four three. 2. three a number of Inheritance . . . . . . . . . . . . . . . . . . . . . ninety five three. three automated Signal/Slot Connections . . . . . . . . . . . . . . . . . . ninety seven three. four together with Derived sessions within the fashion designer . . . . . . . . . . . . . . ninety nine three. five The source Editor . . . . . . . . . . . . . . . . . . . . . . . . . . ninety nine three. 2 four constructing a GUI program in accordance with a first-rate Window 6 sixty one a hundred and one four. 1 The Anatomy of the most Window . . . . . . . . . . . . . . . . . . one hundred and one four. 2 Deriving from QMainWindow . . . . . . . . . . . . . . . . . . . . . 103 four. three making a major Window with the Qt clothier . . . . . . . . . . . 106 four. three. 1 including Menu Bars . . . . . . . . . . . . . . . . . . . . . . 107 four. three. 2 Recycling activities within the Toolbar . . . . . . . . . . . . . . 108 Contents four. three. three four. four Integrating the most Window together with your resource Code . . . one hundred ten taking advantage of the prestige Bar . . . . . . . . . . . . . . . . . . 118 four. four. 1 transitority Messages . . . . . . . . . . . . . . . . . . . . . a hundred and twenty four. four. 2 general Messages . . . . . . . . . . . . . . . . . . . . . . . one hundred twenty four. four. three everlasting Messages . . . . . . . . . . . . . . . . . . . . . 121 four. five Toolbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred twenty five four. 6 How Do activities paintings? . . . . . . . . . . . . . . . . . . . . . . . . 126 four. 7 four. eight four. 6. 1 find out how to Instantiate QAction Manually . . . . . . . . . . . . 127 four. 6. 2 Selectable activities . . . . . . . . . . . . . . . . . . . . . . 128 four. 6. three Grouped activities . . . . . . . . . . . . . . . . . . . . . . . 128 Dock home windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred thirty four. 7. 1 Positioning Dock home windows . . . . . . . . . . . . . . . . . . 131 four. 7. 2 A Dock Window for Our Editor . . . . . . . . . . . . . . . 133 Saving personal tastes . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 four. eight. 1 Extending CuteEdit . . . . . . . . . . . . . . . . . . . . . . 139 five Laying Out Widgets 141 five. 1 guide format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 five. 2 computerized structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 five. three five. four five. 2. 1 Horizontal and Vertical structure . . . . . . . . . . . . . . . a hundred and forty four five. 2. 2 Grid format . . . . . . . . . . . . . . . . . . . . . . . . . . 148 five. 2. three Nested Layouts . . . . . . . . . . . . . . . . . . . . . . . . 149 Splitter . . . . . . . . . . . . . . . . . . . . . . .

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