dockwnddlg.cpp

来自「c++系统开发实例精粹内附的80例源代码 环境:windows2000,c++」· C++ 代码 · 共 166 行

// DockWndDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DockWnd.h"
#include "DockWndDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDockWndDlg dialog

CDockWndDlg::CDockWndDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDockWndDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDockWndDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_bDisplayed = TRUE;
}

void CDockWndDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDockWndDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDockWndDlg, CDialog)
	//{{AFX_MSG_MAP(CDockWndDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_DISPLAY, OnDisplay)
	ON_WM_HELPINFO()
	ON_WM_DESTROY()
	ON_WM_MOVING()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDockWndDlg message handlers

BOOL CDockWndDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	// 将主窗体居中显示
	this->CenterWindow();

	// 创建子窗体
	m_dlgDisplay.Init(this->GetSafeHwnd());

	InverseState();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDockWndDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDockWndDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDockWndDlg::OnDisplay() 
{
	// TODO: Add your control notification handler code here
	InverseState();
}

BOOL CDockWndDlg::OnHelpInfo(HELPINFO* pHelpInfo) 
{
	// TODO: Add your message handler code here and/or call default
	OnDisplay();
	return TRUE;
}

void CDockWndDlg::InverseState()
{
	// 显示状态取反
	m_bDisplayed = !m_bDisplayed;

	// 获得显示子窗体状态的按钮指针
	CWnd *pWnd = this->GetDlgItem(IDC_DISPLAY);
	pWnd->SetWindowText(m_bDisplayed ? _T("隐藏") : _T("显示"));

	// 将子窗体显示或隐藏
	m_dlgDisplay.ShowWindow(m_bDisplayed ? SW_SHOW : SW_HIDE);
}

void CDockWndDlg::OnDestroy()
{
	m_dlgDisplay.DestroyWindow();

	CDialog::OnDestroy();	
}

void CDockWndDlg::OnMoving(UINT fwSide, LPRECT pRect) 
{
	CDialog::OnMoving(fwSide, pRect);
	
	// TODO: Add your message handler code here
	RECT rect,rectMain;

	// 获得子窗体矩形
	rect = (RECT)m_dlgDisplay.GetRect();

	// 获得主窗体矩形
	this->GetWindowRect(&rectMain);

	// 判断是否在停靠状态
	if (m_dlgDisplay.IsDocking((CRect)rectMain,(CRect)rect,NO_DIRECTION))
	{
		// 是则调整子窗体位置
		m_dlgDisplay.Dock(m_dlgDisplay.GetDirection(),this);

		// 记录子窗体停靠矩形的位置
		rect = (RECT)m_dlgDisplay.GetRect();

		// 移动子窗体，停靠到主窗体的边上
		m_dlgDisplay.MoveWindow(&rect);
	}
}