// ScrollBitmapDlg.cpp : implementation file
//
#include "stdafx.h"
#include "ScrollBitmap.h"
#include "ScrollBitmapDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// ScrollBitmapDlg.cpp: Implementation File.
// Written by Shibu K.V (shibukv@erdcitvm.org)
// Sr.Research Associate
// ASIC Hardware Design Group
// Electronics Research & Development Centre of India
// Trivandrum, Kerala, India.
// Copyright (c) 2002
//
// Warning: this code hasn't been subject to a heavy testing, so
// use it on your own risk. The author accepts no liability for the
// possible damage caused by this code.
//
// Version 1.0 22 Oct 2002.
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CScrollBitmapDlg dialog
CScrollBitmapDlg::CScrollBitmapDlg(CWnd* pParent /*=NULL*/)
: CDialog(CScrollBitmapDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CScrollBitmapDlg)
m_hBmpNew = NULL;
flag=true;
erase=false;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CScrollBitmapDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CScrollBitmapDlg)
DDX_Control(pDX, IDC_STATIC1, m_st1);
DDX_Control(pDX, IDC_SCROLLBAR2, m_vbar);
DDX_Control(pDX, IDC_SCROLLBAR1, m_hbar);
DDX_Control(pDX, IDC_COMMONDIALOG1, m_com);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CScrollBitmapDlg, CDialog)
//{{AFX_MSG_MAP(CScrollBitmapDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_SHOW, OnShow)
ON_WM_VSCROLL()
ON_WM_HSCROLL()
ON_WM_ERASEBKGND()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CScrollBitmapDlg message handlers
BOOL CScrollBitmapDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// 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
CClientDC dc(this);
m_dcMem.CreateCompatibleDC( &dc );
m_vbar.ShowWindow(false);
m_hbar.ShowWindow(false);
return TRUE; // return TRUE unless you set the focus to a control
}
void CScrollBitmapDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 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 CScrollBitmapDlg::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
{
CPaintDC dc(this);
dc.BitBlt(offsetx,offsety,m_size.cx,m_size.cy,
&m_dcMem, sourcex, sourcey,SRCCOPY);
erase=false;
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CScrollBitmapDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CScrollBitmapDlg::OnShow()
{
// TODO: Add your control notification handler code here
CString file;
file.Empty();
m_com.ShowOpen();
file=m_com.GetFileName();
file.TrimRight();
if(m_hBmpNew != NULL )
DeleteObject(m_hBmpNew);
sourcex=sourcey=0;//
if(file.IsEmpty())
AfxMessageBox("Please Select a picture file");
else{
if(file.Right(3)!="bmp")
AfxMessageBox("Please Select a .bmp file");
else
{
m_hBmpNew = (HBITMAP) LoadImage(
AfxGetInstanceHandle(), // handle to instance
file, // name or identifier of the image (root is where project is)
IMAGE_BITMAP, // image types
0, // desired width
0, // desired height
LR_LOADFROMFILE);
if( m_hBmpNew == NULL ){
AfxMessageBox("Load Image Failed");}
// put the HBITMAP info into the CBitmap (but not the bitmap itself)
else{
m_st1.GetClientRect( &rectStaticClient );
rectStaticClient.NormalizeRect();
m_size.cx=rectStaticClient.Size().cx;
m_size.cy=rectStaticClient.Size().cy;
m_size.cx = rectStaticClient.Width(); // zero based
m_size.cy = rectStaticClient.Height(); // zero based
// Convert to screen coordinates using static as base,
// then to DIALOG (instead of static) client coords
// using dialog as base
m_st1.ClientToScreen( &rectStaticClient );
ScreenToClient( &rectStaticClient);
m_pt.x = rectStaticClient.left;
m_pt.y = rectStaticClient.top;
GetObject( m_hBmpNew , sizeof(BITMAP), &m_bmInfo );
VERIFY(m_hBmpOld = (HBITMAP)SelectObject(m_dcMem, m_hBmpNew ) );
offsetx= m_pt.x;
offsety=m_pt.y;
m_vbar.MoveWindow(offsetx+m_size.cx,offsety,18,m_size.cy);
m_hbar.MoveWindow(offsetx,offsety+m_size.cy,m_size.cx,18);
horz.cbSize = sizeof(SCROLLINFO);
horz.fMask = SIF_ALL;
horz.nMin = 0;
horz.nMax = m_bmInfo.bmWidth-m_size.cx;
horz.nPage =0;
horz.nPos = 0;
horz.nTrackPos=0;
if(m_bmInfo.bmWidth<=m_size.cx)
{
if((m_size.cx-m_bmInfo.bmWidth)==0)
offsetx= m_pt.x;
else
offsetx= m_pt.x+((m_size.cx-m_bmInfo.bmWidth)/2);
m_vbar.MoveWindow(offsetx+m_bmInfo.bmWidth,offsety,18,m_size.cy);
m_hbar.ShowWindow(false);
}
else
m_hbar.ShowWindow(true);
m_hbar.SetScrollInfo(&horz);
vert.cbSize = sizeof(SCROLLINFO);
vert.fMask = SIF_ALL;
vert.nMin = 0;
vert.nMax = m_bmInfo.bmHeight-(m_size.cy);
vert.nPage = 0;
vert.nTrackPos=0;
if(m_bmInfo.bmHeight<=m_size.cy)
{
if((m_size.cy-m_bmInfo.bmHeight)==0)
offsety= m_pt.y;
else
offsety= m_pt.y+((m_size.cy-m_bmInfo.bmHeight)/2);
m_hbar.MoveWindow(offsetx,offsety+m_bmInfo.bmHeight,m_size.cx,18);
m_vbar.ShowWindow(false);
}
else
m_vbar.ShowWindow(true);
m_vbar.SetScrollInfo(&vert);
InvalidateRect(&rectStaticClient);
}
}
}
}
void CScrollBitmapDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
// TODO: Add your message handler code here and/or call default
switch (nSBCode)
{
case SB_TOP:
sourcey = 0;
break;
case SB_BOTTOM:
sourcey = INT_MAX;
break;
case SB_THUMBTRACK:
sourcey = nPos;
break;
}
//ScrollWindow(0,-(x-xOrig));
m_vbar.SetScrollPos(sourcey);
erase=true;
InvalidateRect(&rectStaticClient);
CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}
void CScrollBitmapDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
// TODO: Add your message handler code here and/or call default
switch (nSBCode)
{
case SB_TOP:
sourcex = 0;
break;
case SB_BOTTOM:
sourcex = INT_MAX;
break;
case SB_THUMBTRACK:
sourcex= nPos;
break;
}
m_hbar.SetScrollPos(sourcex);
//Invalidate();
erase=true;
InvalidateRect(&rectStaticClient);
CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}
BOOL CScrollBitmapDlg::OnEraseBkgnd(CDC* pDC)
{
// TODO: Add your message handler code here and/or call default
if(erase)
return false;
else
return CDialog::OnEraseBkgnd(pDC);
}
void CScrollBitmapDlg::OnOK()
{
// TODO: Add extra validation here
CDialog::OnOK();
}