Help/guide/tutorial/Step7/CMakeLists.txt


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cmake_minimum_required(VERSION 3.10)

# set the project name and version
project(Tutorial VERSION 1.0)

# specify the C++ standard
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED True)

# should we use our own math functions
option(USE_MYMATH "Use tutorial provided math implementation" ON)

# configure a header file to pass some of the CMake settings
# to the source code
configure_file(TutorialConfig.h.in TutorialConfig.h)

# add the MathFunctions library
if(USE_MYMATH)
  add_subdirectory(MathFunctions)
  list(APPEND EXTRA_LIBS MathFunctions)
endif()

# add the executable
add_executable(Tutorial tutorial.cxx)
target_link_libraries(Tutorial PUBLIC ${EXTRA_LIBS})

# add the binary tree to the search path for include files
# so that we will find TutorialConfig.h
target_include_directories(Tutorial PUBLIC
                           "${PROJECT_BINARY_DIR}"
                           )

# add the install targets
install(TARGETS Tutorial DESTINATION bin)
install(FILES "${PROJECT_BINARY_DIR}/TutorialConfig.h"
  DESTINATION include
  )

# enable testing
enable_testing()

# does the application run
add_test(NAME Runs COMMAND Tutorial 25)

# does the usage message work?
add_test(NAME Usage COMMAND Tutorial)
set_tests_properties(Usage
  PROPERTIES PASS_REGULAR_EXPRESSION "Usage:.*number"
  )

# define a function to simplify adding tests
function(do_test target arg result)
  add_test(NAME Comp${arg} COMMAND ${target} ${arg})
  set_tests_properties(Comp${arg}
    PROPERTIES PASS_REGULAR_EXPRESSION ${result}
    )
endfunction(do_test)

# do a bunch of result based tests
do_test(Tutorial 4 "4 is 2")
do_test(Tutorial 9 "9 is 3")
do_test(Tutorial 5 "5 is 2.236")
do_test(Tutorial 7 "7 is 2.645")
do_test(Tutorial 25 "25 is 5")
do_test(Tutorial -25 "-25 is [-nan|nan|0]")
do_test(Tutorial 0.0001 "0.0001 is 0.01")
//! [0]
point = new Object();
point.x = 12;
point.y = 35;
//! [0]


//! [1]
function manhattanLength(point) {  
    return point.x + point.y;
}
//! [1]


//! [2]
manhattanLength = function(point) {
   return point.x + point.y;
}
//! [2]


//! [3]
point.manhattanLength = function() {
    return this.x + this.y;
}
print(point.manhattanLength()); // prints 47
//! [3]


//! [4]
class Point() {
    var x;
    var y;
    function manhattanLength() { return x + y; }
}
//! [4]


//! [5]
point.manhattanLength = function() {
    return this.x + this.y;
}
print(point.manhattanLength()); // prints 47
//! [5]


//! [6]
class Car {
    var regNumber;
    function Car(regnr) {
        regNumber = regnr;
    }
}
var car = new Car("ABC 123");
//! [6]


//! [7]
function Car(regnr) {
    this.regNumber = regnr;
}
var car = new Car("ABC 123");
//! [7]


//! [8]
var car = new Object();
car.constructor = function(regnr) { ... }
car.constructor();
//! [8]


//! [9]
class Car {
    var regNumber;
    function Car(regnr) {
        regNumber = regnr;
    }
    function toString() {
        return regNumber;
    }
}
//! [9]


//! [10]
function Car(regnr) {
    this.regNumber = regnr;
    this.toString = function() { return this.regNumber; }
}
//! [10]


//! [11]
function Car(regnr) {
    this.regNumber = regnr;
}
Car.prototype.toString = function() { return this.regNumber; }
//! [11]


//! [12]
class GasolineCar extends Car {
    function GasolineCar(regnr) {
        Car(regnr);
    }
    function toString() {
        return "GasolineCar(" + regNumber + ")";
    }
}
//! [12]


//! [13]
function GasolineCar(regnr) {
    Car(regnr); 
}
GasolineCar.prototype = new Car();
GasolineCar.prototype.toString = function() { 
    return "GasolineCar(" + this.regNumber + ")"; 
}
//! [13]


//! [14]
class Car {
    static var globalCount = 0;
}     
print(Car.globalCount);
//! [14]


//! [15]
Car.globalCount = 0;
print(Car.globalCount);
//! [15]


//! [16]
QPushButton *button = new QPushButton();
button->setObjectName("button");
interpreter->addTransientObject(button);
//! [16]


//! [17]
QPushButton *button = new QPushButton();
QScriptValue scriptButton = engine.newQObject(button);
engine.globalObject().setProperty("button", scriptButton);
//! [17]


//! [18]
ModuleFactory::ModuleFactory()
{
    registerClass( "ImageSource", &ImgSource::staticMetaObject);
    ...
}

QObject *ModuleFactory::create( const QString &type,
        			const QVariantList &,
        			QObject * )
{
    if ( type == "ImageSource" )
        return new ImgSource();
    ...
}

...

interpreter.addObjectFactory(new ModuleFactory());
//! [18]


//! [19]
QScriptValue construct_QPushButton(QScriptContext *, QScriptEngine *engine) {
    return engine->newQObject(new QPushButton());
}

...

QScriptValue constructor = engine.newFunction(construct_QPushButton);
QScriptValue value =
    engine.newQMetaObject(&QPushButton::staticMetaObject,
                          constructor);
engine.globalObject().setProperty("QPushButton", value);
//! [19]