bargrdlg.cpp

VisualC++多媒体开发指南配套源码

// bargrdlg.cpp : implementation file
//

#include "stdafx.h"
#include "bargraph.h"
#include "bargrdlg.h"

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CBargraphDlg dialog

CBargraphDlg::CBargraphDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBargraphDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBargraphDlg)
		// 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);
}

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

BEGIN_MESSAGE_MAP(CBargraphDlg, CDialog)
	//{{AFX_MSG_MAP(CBargraphDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	ON_BN_CLICKED(IDC_BUTTON4, OnButton4)
	ON_BN_CLICKED(IDC_BUTTON5, OnButton5)
	ON_BN_CLICKED(IDC_BUTTON6, OnButton6)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBargraphDlg message handlers

BOOL CBargraphDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	CenterWindow();

	//Get the client area extent.
	CRect rectWindow;
	CWnd::GetClientRect(&rectWindow);

	int barWidth = rectWindow.Width() / 13;
	int barHeight = rectWindow.Height() / 2;
	CRect rect(barWidth, barHeight, barWidth * 2, rectWindow.Height() * .9);

	//Create the buttons.
	myButton1 = new CButton;
	myButton1->Create("", WS_VISIBLE | WS_CHILD, rect, this, IDC_BUTTON1);
	rect1 = rect;

	myButton2 = new CButton;
	rect.left += barWidth * 2;
	rect.right += barWidth * 2;
	myButton2->Create("", WS_VISIBLE | WS_CHILD, rect, this, IDC_BUTTON2);
	rect2 = rect;

	myButton3 = new CButton;
	rect.left += barWidth * 2;
	rect.right += barWidth * 2;
	myButton3->Create("", WS_VISIBLE | WS_CHILD, rect, this, IDC_BUTTON3);
	rect3 = rect;

	myButton4 = new CButton;
	rect.left += barWidth * 2;
	rect.right += barWidth * 2;
	myButton4->Create("", WS_VISIBLE | WS_CHILD, rect, this, IDC_BUTTON4);
	rect4 = rect;

	myButton5 = new CButton;
	rect.left += barWidth * 2;
	rect.right += barWidth * 2;
	myButton5->Create("", WS_VISIBLE | WS_CHILD, rect, this, IDC_BUTTON5);
	rect5 = rect;

	myButton6 = new CButton;
	rect.left += barWidth * 2;
	rect.right += barWidth*2;
	myButton6->Create("", WS_VISIBLE | WS_CHILD, rect, this, IDC_BUTTON6);
	rect6 = rect;

	maxHeight = rectWindow.Height() * .8;
	deltaHeight = rectWindow.Height() * .1;
	
	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 CBargraphDlg::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 CBargraphDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CBargraphDlg::OnButton1()
{
	if (rect1.Height() < maxHeight)
		rect1.top -= deltaHeight;
	else
		rect1.top = rect1.bottom - deltaHeight;

	myButton1->SetWindowPos(&wndTop,
							rect1.left,
							rect1.top,
							rect1.Width(),
							rect1.Height(),
							SWP_NOZORDER);
}

void CBargraphDlg::OnButton2()
{
if (rect2.Height() < maxHeight)
		rect2.top -= deltaHeight;
	else
		rect2.top = rect2.bottom - deltaHeight;

	myButton2->SetWindowPos(&wndTop,
							rect2.left,
							rect2.top,
							rect2.Width(),
							rect2.Height(),
							SWP_NOZORDER);
}

void CBargraphDlg::OnButton3()
{
if (rect3.Height() < maxHeight)
		rect3.top -= deltaHeight;
	else
		rect3.top = rect3.bottom - deltaHeight;

	myButton3->SetWindowPos(&wndTop,
							rect3.left,
							rect3.top,
							rect3.Width(),
							rect3.Height(),
							SWP_NOZORDER);
}

void CBargraphDlg::OnButton4()
{
if (rect4.Height() < maxHeight)
		rect4.top -= deltaHeight;
	else
		rect4.top = rect4.bottom - deltaHeight;

	myButton4->SetWindowPos(&wndTop,
							rect4.left,
							rect4.top,
							rect4.Width(),
							rect4.Height(),
							SWP_NOZORDER);
}

void CBargraphDlg::OnButton5()
{
if (rect5.Height() < maxHeight)
		rect5.top -= deltaHeight;
	else
		rect5.top = rect5.bottom - deltaHeight;

	myButton5->SetWindowPos(&wndTop,
							rect5.left,
							rect5.top,
							rect5.Width(),
							rect5.Height(),
							SWP_NOZORDER);
}

void CBargraphDlg::OnButton6()
{
if (rect6.Height() < maxHeight)
		rect6.top -= deltaHeight;
	else
		rect6.top = rect6.bottom - deltaHeight;

	myButton6->SetWindowPos(&wndTop,
							rect6.left,
							rect6.top,
							rect6.Width(),
							rect6.Height(),
							SWP_NOZORDER);
}

void CBargraphDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	delete myButton1;
	delete myButton2;
	delete myButton3;
	delete myButton4;
	delete myButton5;
	delete myButton6;
}