axmol/samples/Cpp/TestCpp/Classes/testBasic.cpp

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#include "testBasic.h"
#include "controller.h"
TestScene::TestScene(bool bPortrait)
{
Scene::init();
}
void TestScene::onEnter()
{
Scene::onEnter();
//add the menu item for back to main menu
//#if (CC_TARGET_PLATFORM == CC_PLATFORM_MARMALADE)
// LabelBMFont* label = LabelBMFont::create("MainMenu", "fonts/arial16.fnt");
//#else
LabelTTF* label = LabelTTF::create("MainMenu", "Arial", 20);
//#endif
MenuItemLabel* pMenuItem = MenuItemLabel::create(label, [](Object *sender) {
/*
****** GCC Compiler issue on Android and Linux (CLANG compiler is ok) ******
We couldn't use 'Scene::create' directly since gcc will trigger
an error called "error: 'this' was not captured for this lambda function".
This is because 'Scene' is the super class of TestScene, if we invoke 'Scene::create'
directly in this lambda expression, gcc compiler found 'Scene::create' and it think
that was the member function of 'TestScene' 's super class, but this lambda function doesn't
capture anything like 'this', so it has no access to invoke 'Scene::create'.
Solution (1): Passing 'this' to this lambda function.
Solution (2): Don't use 'Scene::create' and don't pass 'this' to this lambda function,
instead, we just need to new the 'Scene' and initialize the Scene.
Semantically, I think in this lambda function, we shouldn't capture any varibles
outside the scope. So I choose the (2) solution. Commented by James Chen.
*/
// Scene *pScene = Scene::create();
Scene *pScene = new Scene();
if (pScene && pScene->init())
{
Layer* pLayer = new TestController();
pScene->addChild(pLayer);
pLayer->release();
Director::getInstance()->replaceScene(pScene);
pScene->release();
}
});
Menu* pMenu =Menu::create(pMenuItem, NULL);
pMenu->setPosition( PointZero );
pMenuItem->setPosition( ccp( VisibleRect::right().x - 50, VisibleRect::bottom().y + 25) );
addChild(pMenu, 1);
}