📄 myimage.cpp
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// MyImage.cpp : implementation file
//
#include "stdafx.h"
#include "NetMap.h"
#include "MyImage.h"
#include "MainFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CMyImage
CMyImage::CMyImage()
{
move=false;
init_x=0;
init_y=0;
MyPos.x=0;
MyPos.y=0;
HSelf=NULL;
}
CMyImage::~CMyImage()
{
}
BEGIN_MESSAGE_MAP(CMyImage, CStatic)
//{{AFX_MSG_MAP(CMyImage)
ON_WM_CONTEXTMENU()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_WM_PAINT()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyImage message handlers
void CMyImage::OnContextMenu(CWnd* pWnd, CPoint point)
{
CMenu pop;
pop.LoadMenu(IDR_MENU1);
CMenu * popup=pop.GetSubMenu(0);
CMainFrame *pMain=(CMainFrame *)AfxGetApp()->m_pMainWnd;
popup->TrackPopupMenu(TPM_LEFTALIGN,point.x,point.y,pMain);
pMain->HSelect=HSelf;
}
void CMyImage::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
move=true;
init_x=point.x;
init_y=point.y;
CStatic::OnLButtonDown(nFlags, point);
}
void CMyImage::OnLButtonUp(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
if (move==true)
{
move=false;
CRect cr;
GetWindowRect(cr);
CRect c(cr);
GetParent()->ScreenToClient(c);
MyPos.x=c.left+33;
MyPos.y=c.top+12;
GetParent()->RedrawWindow();
}
CStatic::OnLButtonUp(nFlags, point);
}
void CMyImage::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
// MessageBox("Move");
if (move)
{
int x1,y1;
CRect cr;
GetWindowRect(cr);
CRect c(cr);
GetParent()->ScreenToClient(c);
x1=c.left;
y1=c.top;
MoveWindow(x1+(point.x-init_x),y1+(point.y-init_y),65,35);
}
CStatic::OnMouseMove(nFlags, point);
}
void CMyImage::OnPaint()
{
// CPaintDC dc(this); // device context for painting
HBITMAP l_hbmpBitmap = GetBitmap() ;
if( l_hbmpBitmap == NULL )
{
Default() ;
return ;
}
CPaintDC l_PaintDC( this ) ;
////////////////////////////////////////////////////////////////////////////
// Prepare everything for drawing
////////////////////////////////////////////////////////////////////////////
CRect l_rcClient ;
GetClientRect( &l_rcClient ) ;
CDC l_BufferDC ;
l_BufferDC.CreateCompatibleDC( &l_PaintDC ) ;
CBitmap l_BufferBitmap ;
l_BufferBitmap.CreateCompatibleBitmap( &l_PaintDC, l_rcClient.Width(), l_rcClient.Height() ) ;
CBitmap* l_pOldBufferBitmap = l_BufferDC.SelectObject( &l_BufferBitmap ) ;
CDC l_MaskDC ;
l_MaskDC.CreateCompatibleDC( &l_PaintDC ) ;
CBitmap l_MaskBitmap ;
l_MaskBitmap.CreateBitmap( l_rcClient.Width(), l_rcClient.Height(), 1, 1, NULL ) ;
CBitmap* l_pOldMaskBitmap = l_MaskDC.SelectObject( &l_MaskBitmap ) ;
#define ROP4_TRANSPARENTBLIT 0xCCAA0020
#define SRCMASK 0x00220326
////////////////////////////////////////////////////////////////////////////
// Fill with transparent color
////////////////////////////////////////////////////////////////////////////
l_BufferDC.FillSolidRect( &l_rcClient, RGB( 255, 0, 255 ) ) ;
////////////////////////////////////////////////////////////////////////////
// Blit the bitmap to the buffer
////////////////////////////////////////////////////////////////////////////
CDC l_MemoryDC ;
l_MemoryDC.CreateCompatibleDC( &l_PaintDC ) ;
CBitmap* l_pOldMemoryBitmap = l_MemoryDC.SelectObject( CBitmap::FromHandle( l_hbmpBitmap ) ) ;
l_BufferDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_MemoryDC, 0, 0, SRCCOPY ) ;
l_MemoryDC.SelectObject( l_pOldMemoryBitmap ) ;
////////////////////////////////////////////////////////////////////////////
// Create the mask.
////////////////////////////////////////////////////////////////////////////
COLORREF l_crOldBack = l_BufferDC.SetBkColor( RGB( 255, 0, 255 ) ) ;
l_MaskDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_BufferDC, 0, 0, SRCCOPY ) ;
l_BufferDC.SetBkColor( l_crOldBack ) ;
////////////////////////////////////////////////////////////////////////////
// Draw the bitmap transparently now, since not all devices support this
// and Windows 98 does not (duh?), if this fails, we do it the long way.
////////////////////////////////////////////////////////////////////////////
if( ! l_PaintDC.MaskBlt( 0,
0,
l_rcClient.Width(),
l_rcClient.Height(),
&l_BufferDC,
0,
0,
l_MaskBitmap,
0,
0,
ROP4_TRANSPARENTBLIT ) )
{
CDC l_CopyDC ;
l_CopyDC.CreateCompatibleDC( &l_PaintDC ) ;
CBitmap l_CopyBitmap ;
l_CopyBitmap.CreateCompatibleBitmap( &l_PaintDC, l_rcClient.Width(), l_rcClient.Height() ) ;
CBitmap* l_pOldCopyBitmap = l_CopyDC.SelectObject( &l_CopyBitmap ) ;
l_CopyDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_PaintDC, 0, 0, SRCCOPY ) ;
l_CopyDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_MaskDC, 0, 0, SRCAND ) ;
l_BufferDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_MaskDC, 0, 0, SRCMASK ) ;
l_CopyDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_BufferDC, 0, 0, SRCPAINT ) ;
l_PaintDC.BitBlt( 0, 0, l_rcClient.Width(), l_rcClient.Height(), &l_CopyDC, 0, 0, SRCCOPY ) ;
l_CopyDC.SelectObject( l_pOldCopyBitmap ) ;
}
////////////////////////////////////////////////////////////////////////////
// Clean up.
////////////////////////////////////////////////////////////////////////////
l_MaskDC.SelectObject( l_pOldMaskBitmap ) ;
l_BufferDC.SelectObject( l_pOldBufferBitmap ) ;
}
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