source: trunk/doc/src/examples/qtscripttetrix.qdoc@ 5

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41
42/*!
43 \example script/qstetrix
44 \title Qt Script Tetrix Example
45
46 The QSTetrix example is a Qt Script version of the classic Tetrix game.
47
48 \image tetrix-example.png
49
50 \section1 Overview
51
52 The program logic in this example is a fairly straight port of the
53 logic in the C++ \l{Tetrix Example}. You may find it useful to compare
54 the implementations of the \c TetrixBoard, \c TetrixPiece and
55 \c TetrixWindow classes to see how Qt Script is used to implement
56 methods, call Qt functions, and emit signals.
57
58 \section1 Setting up the GUI
59
60 The graphical user interface is defined in a \c{.ui} file, creating
61 using Qt Designer, and is set up in the example's C++ \c{main.cpp} file.
62
63 \snippet examples/script/qstetrix/main.cpp 0
64
65 We define a custom UI loader that handles our \c TetrixBoard widget; this
66 is the main component of the UI (where the pieces are drawn).
67
68 \snippet examples/script/qstetrix/main.cpp 1
69
70 We initialize the script engine to have the Qt namespace, so that
71 e.g., \l{Qt::Key_Left}{Qt.Key_Left} will be available to script code.
72 We also make the application object available (for the
73 \l{QApplication::}{quit()} slot).
74
75 \snippet examples/script/qstetrix/main.cpp 2
76
77 Several scripts are evaluated as part of the engine setup process.
78 The \c{tetrixpiece.js} file contains the definition of the \c TetrixPiece
79 class, which is used to populate the play field. The \c{tetrixboard.js}
80 file contains the definition of the \c TetrixBoard class, which contains
81 the main game logic. Finally, \c{tetrixwindow.js} contains the definition
82 of the \c TetrixWindow class, which wires up the top-level widget.
83
84 \snippet examples/script/qstetrix/main.cpp 3
85
86 A form is created from the UI file. A new \c TetrixWindow script object
87 is then constructed, passing the form as its argument.
88
89 \snippet examples/script/qstetrix/main.cpp 4
90
91 The form is shown, and the event loop is entered.
92*/
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