(CEGUI)DragDropDemo例子的延伸(添加,删除，双击ITEM) -------制作背包系统

//例子的初始化

bool DragDropDemo::initialiseSample()
{
using namespace CEGUI;

// load windows look
SchemeManager::getSingleton().create("WindowsLook.scheme");

// load font and setup default if not loaded via scheme
FontManager::getSingleton().create("DejaVuSans-10.font");

// set up defaults
System::getSingleton().setDefaultMouseCursor("WindowsLook", "MouseArrow");
System::getSingleton().setDefaultFont("DejaVuSans-10");

// load the drive icons imageset
ImagesetManager::getSingleton().create("DriveIcons.imageset");

// load the initial layout
System::getSingleton().setGUISheet(
WindowManager::getSingleton().loadWindowLayout("DragDropDemo.layout"));

WindowManager& wmger = WindowManager::getSingleton();
Window* root = wmger.getWindow("Root");

//打开CEGUI的Tooltip功能

System::getSingleton ().setDefaultTooltip ("WindowsLook/Tooltip");
// 显示是否有物品;
PushButton* btn = static_cast<PushButton*>(wmger.createWindow("WindowsLook/Button","AddBtn"));
btn->setPosition(UVector2(cegui_reldim(0.0f),cegui_reldim(0.0f)));
btn->setSize(UVector2(cegui_reldim(0.12f),cegui_reldim(0.06f)));
btn->setText("ShowItem");
root->addChildWindow(btn);
btn->subscribeEvent(PushButton::EventClicked,Event::Subscriber(&DragDropDemo::addClose,this));
// 添加按钮
PushButton* addItemBtn = static_cast<PushButton*>(wmger.createWindow("WindowsLook/Button","AddItemBtn"));
root->addChildWindow(addItemBtn);
addItemBtn->setPosition(UVector2(cegui_reldim(0.0f),cegui_reldim(0.2f)));
addItemBtn->setSize(UVector2(cegui_reldim(0.12f),cegui_reldim(0.06f)));
addItemBtn->setText("AddItemBtn");
addItemBtn->subscribeEvent(PushButton::EventClicked,Event::Subscriber(&DragDropDemo::AddItem,this));
// 删除按钮
PushButton* delItemBtn = static_cast<PushButton*>(wmger.createWindow("WindowsLook/Button","DelItemBtn"));
root->addChildWindow(delItemBtn);
delItemBtn->setPosition(UVector2(cegui_reldim(0.0f),cegui_reldim(0.4f)));
delItemBtn->setSize(UVector2(cegui_reldim(0.12f),cegui_reldim(0.06f)));
delItemBtn->setText("DelItemBtn");
delItemBtn->setProperty("Tooltip","Del a Item!/nIt's a button");
delItemBtn->subscribeEvent(PushButton::EventClicked,Event::Subscriber(&DragDropDemo::DelItem,this));
// setup events
subscribeEvents();

// success!
return true;
}

//----------------------------------------------------------------------------//
void DragDropDemo::cleanupSample()
{
// nothing doing in here!
}

//----------------------------------------------------------------------------//
void DragDropDemo::subscribeEvents()
{
using namespace CEGUI;

WindowManager& wmgr = WindowManager::getSingleton();

/*
* Subscribe handler to deal with user closing the frame window
*/
CEGUI_TRY
{
Window* main_wnd = wmgr.getWindow("Root/MainWindow");
main_wnd->subscribeEvent(
FrameWindow::EventCloseClicked,
Event::Subscriber(&DragDropDemo::handle_CloseButton, this));
}
// if something goes wrong, log the issue but do not bomb!
CEGUI_CATCH(CEGUI::Exception&)
{}

/*
* Subscribe the same handler to each of the twelve slots
*/
String base_name = "Root/MainWindow/Slot";

for (int i = 1; i <= 12; ++i)
{
CEGUI_TRY
{
// get the window pointer for this slot
Window* wnd =
wmgr.getWindow(base_name + PropertyHelper::intToString(i));

// subscribe the handler.
wnd->subscribeEvent(
Window::EventDragDropItemDropped,
Event::Subscriber(&DragDropDemo::handle_ItemDropped, this));
}
// if something goes wrong, log the issue but do not bomb!
CEGUI_CATCH(CEGUI::Exception&)
{}
}
}

//----------------------------------------------------------------------------//
bool DragDropDemo::handle_ItemDropped(const CEGUI::EventArgs& args)
{
using namespace CEGUI;

// cast the args to the 'real' type so we can get access to extra fields
const DragDropEventArgs& dd_args =
static_cast<const DragDropEventArgs&>(args);

//物品的移动

if (!dd_args.window->getChildCount())
{
// add dragdrop item as child of target if target has no item already
dd_args.window->addChildWindow(dd_args.dragDropItem);
// Now we must reset the item position from it's 'dropped' location,
// since we're now a child of an entirely different window
dd_args.dragDropItem->setPosition(
UVector2(UDim(0.05f, 0),UDim(0.05f, 0)));

}
return true;
}

//----------------------------------------------------------------------------//
bool DragDropDemo::handle_CloseButton(const CEGUI::EventArgs&)
{
d_sampleApp->setQuitting();
return true;
}

//----------------------------------------------------------------------------//
bool DragDropDemo::addClose(const CEGUI::EventArgs& agrs)
{
using namespace CEGUI;

string base_name = "Root/MainWindow/Slot";
for(int i=0;i<12;i++)
{
Window* window = WindowManager::getSingleton().getWindow(base_name+PropertyHelper::intToString(i+1));
//设置ID
//window->setProperty("ID",PropertyHelper::intToString(i+1));
size_t ishas = window->getChildCount();
if (ishas>0)
{
Window* windowTemp = window->getChild(0);
if (!windowTemp)
{
return false;
}

size_t aa = windowTemp->getChildCount();
if (aa>0)
{
Window* tempWindow = window->getChild(0);
//size_t bb = tempWindow->getChildCount();
//if (bb>0)
{
char temp[128]={0};
sprintf(temp,"%s",tempWindow->getChild(0)->getName().c_str());
MessageBox(NULL,temp,"",0);
}

}
}else
{
MessageBox(NULL,"NULL","",0);
}
}
return true;
}
/// 添加物品

bool DragDropDemo::AddItem(const CEGUI::EventArgs &args)
{
using namespace CEGUI;
WindowManager& winMger = WindowManager::getSingleton();
Window* root = winMger.getWindow("Root");
string base_name = "Root/MainWindow/Slot";

//为了防止创建同名的控件
static int _num = 0;
for(int i=0;i<12;i++)
{
Window* window = WindowManager::getSingleton().getWindow(base_name+PropertyHelper::intToString(i+1));
if (!window->getChildCount())
{
//创建物品
Window* statiImg = winMger.createWindow("WindowsLook/StaticImage","staticT"+PropertyHelper::intToString(_num));
statiImg->setPosition(UVector2(cegui_reldim(0.0f),cegui_reldim(0.0f)));
statiImg->setSize(UVector2(cegui_reldim(1.0f),cegui_reldim(1.0f)));
statiImg->setProperty("Image","set:DriveIcons image:Blue");
statiImg->setProperty("MousePassThroughEnabled","True");
//创建拖动框
DragContainer* dContainer = static_cast<DragContainer*>(winMger.createWindow("DragContainer","DragContainerT"+PropertyHelper::intToString(_num)));
window->addChildWindow(dContainer);
dContainer->addChildWindow(statiImg);
dContainer->setPosition(UVector2(cegui_reldim(0.05f),cegui_reldim(0.05f)));
dContainer->setSize(UVector2(cegui_reldim(0.90f),cegui_reldim(0.90f)));

//添加标签其实很简单，就2句代码（紫色部分，非注释）
dContainer->setProperty("Tooltip","staticT"+PropertyHelper::intToString(_num));
dContainer->subscribeEvent(DragContainer::EventMouseDoubleClick,Event::Subscriber(&DragDropDemo::DBClick,this));
_num++;
return true;
}

}

return true;
}

//删除物品（丢弃物品）
bool DragDropDemo::DelItem(const CEGUI::EventArgs &args)
{
using namespace CEGUI;
WindowManager& winMger = WindowManager::getSingleton();
Window* root = winMger.getWindow("Root");
string base_name = "Root/MainWindow/Slot";
for(int i=0;i<12;i++)
{
Window* window = WindowManager::getSingleton().getWindow(base_name+PropertyHelper::intToString(i+1));
if (window->getChildCount()>0)
{
window->getChild(0)->destroy();
//window->destroy();
/*window->ChildList
char temp[128]={0};
sprintf(temp,"%s",window->getChild(0)->getName().c_str());
MessageBox(NULL,temp,"",0);*/
return true;
}
}
return true;
}

//双击物品，如背包中的使用物品等功能

bool DragDropDemo::DBClick(const CEGUI::EventArgs& args)
{
using namespace CEGUI;

//对于CEGUI的EVENT还不是很懂，忘高手指点，或提供点资料
const DragDropEventArgs& dd_args =
static_cast<const DragDropEventArgs&>(args);

if (dd_args.window->getChildCount()>0)
{
dd_args.window->destroy();
}
return true;
}

以上为CEGUI例子中DragDropDemo的延伸，比较简单（高手绕行），这个例子应该主要就是用于背包的功能，所以延伸了下，未测试BUG，有BUG请告知