【3】QQ 聊天界面

// QQTalk.h文件
#ifndef __QQ_TALK_H__
#define __QQ_TALK_H__
#include <DuiLib/DuiLibEnv.h>
#include <DuiLib/UIlib.h>

using namespace DuiLib;
#define QQ_TALK_XML		_T("chatbox.xml")

class CQQTalk : public CWindowWnd, public INotifyUI
{
public:
	virtual LPCTSTR	GetWindowClassName() const;		// CWindowWnd的纯虚函数，必须实现
	virtual void Notify( TNotifyUI& msg );			// INotifyUI的纯虚函数，必须实现

	// 窗口消息处理回调函数
	virtual LRESULT HandleMessage( UINT uMsg, WPARAM wParam, LPARAM lParam );

private:
	// 消息处理函数
	LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle);
	LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle);
	LRESULT OnNCActivate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle);
	LRESULT OnNCCalcsize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle);
	LRESULT OnNCPaint(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle);
	LRESULT OnDestory(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle);

	// 控件消息处理函数
	void OnNotifyClick(TNotifyUI& msg);

	// 获取窗口控件
	void	GetCtrlFromRes();

protected:
	CPaintManagerUI			m_paintManager;			// 窗口消息类管理对象

private:
	// 窗口控件列表
	CButtonUI*				m_pbtnClose;
	CButtonUI*				m_pbtnFontBar;
private:
	static LPCTSTR			m_lpszWndClsName;		// 窗口类名
};
#endif

// QQTalk.cpp文件
#include "QQTalk.h"
#include <exception>

LPCTSTR CQQTalk::m_lpszWndClsName = _T("QQTalk");

LPCTSTR CQQTalk::GetWindowClassName() const
{
	return m_lpszWndClsName;
}

void CQQTalk::Notify( TNotifyUI& msg )
{
	if(msg.sType == _T("click"))
	{
		OnNotifyClick(msg);
	}
}

LRESULT CQQTalk::HandleMessage( UINT uMsg, WPARAM wParam, LPARAM lParam )
{
	LRESULT lRes = 0;
	BOOL	bHandle = FALSE;

	switch(uMsg)
	{
	case WM_CREATE:		lRes = OnCreate(uMsg, wParam, lParam, bHandle);break;
	case WM_NCHITTEST:	lRes = OnNcHitTest(uMsg, wParam, lParam, bHandle);break;
	case WM_NCACTIVATE:	lRes = OnNCActivate(uMsg, wParam, lParam, bHandle);break;
	case WM_NCCALCSIZE:	lRes = OnNCCalcsize(uMsg, wParam, lParam, bHandle);break;
	case WM_NCPAINT:	lRes = OnNCPaint(uMsg, wParam, lParam, bHandle);break;
	case WM_DESTROY:	lRes = OnDestory(uMsg, wParam, lParam, bHandle);break;
	default:			lRes = FALSE;break;
	}

	if(bHandle)
	{
		return lRes;
	}
	else
	{
		if( m_paintManager.MessageHandler(uMsg, wParam, lParam, lRes) )
		{
			return lRes;
		}
		else
		{
			return CWindowWnd::HandleMessage(uMsg, wParam, lParam);
		}
	}
}


LRESULT CQQTalk::OnCreate( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle )
{
	m_paintManager.Init(m_hWnd);
	CDialogBuilder builder;
	CControlUI* pRoot = builder.Create(QQ_TALK_XML, (UINT)0, NULL, &m_paintManager);
	ASSERT(pRoot && "Failed to parse XML");
	m_paintManager.AttachDialog(pRoot);
	bool bRet = m_paintManager.AddNotifier(this);
	GetCtrlFromRes();
	bHandle = TRUE;
	return 0;
}

LRESULT CQQTalk::OnNCActivate( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle )
{
	bHandle = TRUE;
	return 0;
}

LRESULT CQQTalk::OnNCCalcsize( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle )
{
	bHandle = TRUE;
	return 0;
}

LRESULT CQQTalk::OnNCPaint( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle )
{
	bHandle = TRUE;
	return 0;
}

// 实现窗口可拖拽
LRESULT CQQTalk::OnNcHitTest( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle )
{
	bHandle = TRUE;
	POINT pt; 
	pt.x = GET_X_LPARAM(lParam); 
	pt.y = GET_Y_LPARAM(lParam);
	::ScreenToClient(*this, &pt);

	RECT rcClient;
	::GetClientRect(*this, &rcClient);


	RECT rcCaption = m_paintManager.GetCaptionRect();
	if( pt.x >= rcClient.left + rcCaption.left && pt.x < rcClient.right - rcCaption.right 		&& pt.y >= rcCaption.top && pt.y < rcCaption.bottom ) {
			CControlUI* pControl = static_cast<CControlUI*>(m_paintManager.FindControl(pt));
			if( pControl && _tcscmp(pControl->GetClass(), _T("ButtonUI")) != 0 && 
				_tcscmp(pControl->GetClass(), _T("OptionUI")) != 0 &&
				_tcscmp(pControl->GetClass(), _T("TextUI")) != 0 )
				return HTCAPTION;
	}

	return HTCLIENT;
}


LRESULT CQQTalk::OnDestory( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandle )
{
	::PostQuitMessage(0L);
	bHandle = TRUE;
	return 0;
}

void CQQTalk::GetCtrlFromRes()
{
	m_pbtnClose = static_cast<CButtonUI*>(m_paintManager.FindControl(_T("closebtn")));
}

void CQQTalk::OnNotifyClick( TNotifyUI& msg )
{
	if( msg.pSender == m_pbtnClose ) 
	{
		PostQuitMessage(0);
	}
}

// main.cpp
// 测试文件

#include "QQTalk.h"

int WINAPI wWinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in LPWSTR lpCmdLine, __in int nShowCmd )
{
	// 初始化CPaintManagerUI
	CPaintManagerUI::SetInstance(hInstance);
	CPaintManagerUI::SetResourcePath(CPaintManagerUI::GetInstancePath() + _T("skin"));
	CPaintManagerUI::SetResourceZip(_T("MyQQRes.zip"));

	// 这一步可选
	// CoInitialize是Windows提供的API函数
	// 用来告诉 Windows以单线程的方式创建com对象
	HRESULT Hr = ::CoInitialize(NULL);
	if( FAILED(Hr) ) return 0;

	// 创建一个QQ对话界面
	CQQTalk* pQQTalkDlg = new CQQTalk();
	pQQTalkDlg->Create(NULL, _T("和XXX的对话"), UI_WNDSTYLE_FRAME, WS_EX_WINDOWEDGE);
	pQQTalkDlg->CenterWindow();
	pQQTalkDlg->ShowModal();
	CPaintManagerUI::MessageLoop();
	delete pQQTalkDlg; pQQTalkDlg = NULL;

	// 逆初始化
	::CoUninitialize();
	return 0;
}