www.pudn.com > Image_Manage.rar > DlgGrid.cpp
// DlgGrid.cpp : implementation file
//
#include "stdafx.h"
#include "Image_Manage.h"
#include "Image_ManageDoc.h"
#include "DlgGrid.h"
#include
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
HDIB hDIB=NULL;
CPalette* palDIB=NULL;
/////////////////////////////////////////////////////////////////////////////
// CDlgGrid dialog
CDlgGrid::CDlgGrid(CWnd* pParent /*=NULL*/)
: CDialog(CDlgGrid::IDD, pParent)
{
//{{AFX_DATA_INIT(CDlgGrid)
m_pixels = 10;
//}}AFX_DATA_INIT
rtSel.SetRect(10,10,RT_WIDTH+10,RT_WIDTH+10);
rcDest.SetRect(0,0,0,0);
rcDIB.SetRect(0,0,0,0);
bLButtonDown=FALSE;
Oldx=0;
Oldx=0;
int nBitCount=0;
int cxDIB=0;
int cyDIB=0;
dxy=0.0;
LPSTR lpDIBBits=NULL;
//srand((unsigned)time(NULL));
}
void CDlgGrid::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDlgGrid)
DDX_Text(pDX, IDC_EDIT_Num, m_pixels);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CDlgGrid, CDialog)
//{{AFX_MSG_MAP(CDlgGrid)
ON_WM_PAINT()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_WM_CTLCOLOR()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDlgGrid message handlers
void CDlgGrid::OnOK()
{
CRect rt;
rt.SetRect(rcDest.right+10,rcDest.top,rcDest.right+10+m_pixels*40,rcDest.top+m_pixels*40);
InvalidateRect(rt);
// 更新
UpdateData(TRUE);
rt.SetRect(rcDest.right+10,rcDest.top,rcDest.right+10+m_pixels*40,rcDest.top+m_pixels*40);
InvalidateRect(rt);
}
BOOL CDlgGrid::OnInitDialog()
{
CDialog::OnInitDialog();
// 判断DIB是否为空
if (hDIB == NULL)
{
AfxMessageBox(TEXT("位图开取出现错误，请重试！"));
OnCancel();
return FALSE;
}
// 锁定DIB
LPSTR lpDIB = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);
// 像素位数
nBitCount = (int) ::DIBBitCount(lpDIB);
// 获取DIB宽度
cxDIB = (int) ::DIBWidth(lpDIB);
// 获取DIB高度
cyDIB = (int) ::DIBHeight(lpDIB);
// 找到DIB图像象素起始位置
lpDIBBits = ::FindDIBBits(lpDIB);
// 解除锁定
::GlobalUnlock((HGLOBAL) hDIB);
float cxy=(float)cxDIB/(float)cyDIB;
dxy=1.0;
rcDIB.top = rcDIB.left = 0;
rcDIB.right = cxDIB;
rcDIB.bottom = cyDIB;
rcDest.top = rcDest.left = 10;
if(cxDIB>300||cyDIB>400)
{
if(cxy>0.75)
{
dxy=(float)cxDIB/(float)300.0;
cxy=(float)300.0/(float)cxDIB;
rcDest.right=310;
rcDest.bottom=(int)((float)cyDIB*cxy)+10;
}
else
{
dxy=(float)cyDIB/(float)400.0;
cxy=(float)400.0/(float)cyDIB;
rcDest.bottom=410;
rcDest.right=(int)((float)cxDIB*cxy)+10;
}
}
else
{
rcDest.right = cxDIB+10;
rcDest.bottom = cyDIB+10;
}
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
HBRUSH CDlgGrid::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
// TODO: Change any attributes of the DC here
if(nCtlColor==CTLCOLOR_STATIC)
{
// 设置文本的背景颜色跟对话框的背景一致
hbr=CreateSolidBrush(RGB(179,210,253));
pDC->SetBkColor(RGB(179,210,253));
pDC->SetTextColor(RGB(255,0,0));
}
// TODO: Return a different brush if the default is not desired
return hbr;
}
void CDlgGrid::OnPaint()
{
CPaintDC dc(this); // device context for painting
BYTE rgbRtBound;
CRect rtBg;
CPen pen;
CBrush brush;
// 设置背景
pen.CreatePen(PS_SOLID,1,RGB(179,210,253));
brush.CreateSolidBrush(RGB(179,210,253));
GetClientRect(&rtBg);
dc.SelectObject(&pen);
dc.SelectObject(&brush);
dc.Rectangle(rtBg);
brush.DeleteObject();
pen.DeleteObject();
// 输出DIB
::PaintDIB(dc.m_hDC, &rcDest, hDIB, &rcDIB, palDIB);
// 画矩形
CRect rtOutSel;
// 矩形中心点的位置
int x;
int y;
x=(int)((float)(rtSel.left+RT_WIDTH/2-10)*dxy);
y=(int)((float)(rtSel.top+RT_WIDTH/2-10)*dxy);
rtOutSel.left=x-RT_WIDTH/2;
rtOutSel.top=y-RT_WIDTH/2;
rtOutSel.right=x+RT_WIDTH/2;
rtOutSel.bottom=y+RT_WIDTH/2;
// 输出原始图
::PaintDIB(dc.m_hDC, &rtSel, hDIB, &rtOutSel, palDIB);
// 画矩形边缘
if(bLButtonDown)
rgbRtBound=0;
else
rgbRtBound=255;
pen.CreatePen(PS_SOLID,1,RGB(rgbRtBound,rgbRtBound,rgbRtBound));
dc.SelectObject(&pen);
dc.MoveTo(rtSel.left,rtSel.bottom);
dc.LineTo(rtSel.left,rtSel.top);
dc.LineTo(rtSel.right,rtSel.top);
pen.DeleteObject();
pen.CreatePen(PS_SOLID,1,RGB(255-rgbRtBound,255-rgbRtBound,255-rgbRtBound));
dc.SelectObject(&pen);
dc.LineTo(rtSel.right,rtSel.bottom);
dc.LineTo(rtSel.left,rtSel.bottom);
pen.DeleteObject();
// 画网格
rtBg.SetRect(rcDest.right+10,rcDest.top,rcDest.right+10+m_pixels*40,rcDest.top+m_pixels*40);
DrawGrids(rtOutSel,rtBg);
}
void CDlgGrid::DrawGrids(RECT rtSrc, RECT rtDst)
{
CClientDC dc(this);
int i;
int j;
int k;
int temp1,temp2;
BYTE R,G,B;
COLORREF rgb;
CRect pixels;
double result;
unsigned char pixel[4];
for(j=rtSel.top+1;j rtSel.left && point.x < rtSel.right
&& point.y > rtSel.top && point.y < rtSel.bottom)
{
bLButtonDown=TRUE;
CRect rt(rtSel.left,rtSel.top,rtSel.right+1,rtSel.bottom+1);
InvalidateRect(&rt);
Oldx=point.x;
Oldy=point.y;
}
CDialog::OnLButtonDown(nFlags, point);
}
void CDlgGrid::OnLButtonUp(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
bLButtonDown=FALSE;
CRect rt(rtSel.left,rtSel.top,rtSel.right+1,rtSel.bottom+1);
InvalidateRect(&rt);
CDialog::OnLButtonUp(nFlags, point);
}
void CDlgGrid::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
if(bLButtonDown)
{
int dx,dy;
dx=point.x-Oldx;
dy=point.y-Oldy;
int offset=RT_WIDTH/2-(int)((float)(RT_WIDTH/2)/dxy+0.5);
if(rtSel.left+dx<10-offset || rtSel.right+dx>rcDest.right+offset)
dx=0;
if(rtSel.top+dy<10-offset || rtSel.bottom+dy>rcDest.bottom+offset)
dy=0;
CRect rt;
rt.SetRect(rtSel.left,rtSel.top,rtSel.right,rtSel.bottom);
rtSel.OffsetRect(dx,dy);
if(rt.left>rtSel.left)
rt.left=rtSel.left;
if(rt.top>rtSel.top)
rt.top=rtSel.top;
if(rt.right