C++ (Cpp) CxImage::Draw3 Examples

Example #1

File: demoView.cpp Project: moon-sky/fishjam-template-library

//////////////////////////////////////////////////////////////////////////////
// CDemoView drawing
void CDemoView::OnDraw(CDC* pDC)
{
	CDemoDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	BOOL bPrinting = pDC->IsPrinting();

	CMemDC* pMemDC = NULL;
	if (!bPrinting) pDC = pMemDC = new CMemDC(pDC);

	if (!bPrinting && m_brHatch.m_hObject){
		CRect rect;
		GetClientRect(&rect);
		rect.right  = max(rect.right , m_totalDev.cx);
		rect.bottom = max(rect.bottom, m_totalDev.cy);
		m_brHatch.UnrealizeObject();
		CPoint pt(0, 0);
		pDC->LPtoDP(&pt);
		pt = pDC->SetBrushOrg(pt.x % 8, pt.y % 8);
		CBrush* old = pDC->SelectObject(&m_brHatch);
		pDC->FillRect(&rect, &m_brHatch);
		pDC->SelectObject(old);
	}

	CxImage* ima = pDoc->GetImage(); 
	if (ima) {
		if (bPrinting) {
            ASSERT(FALSE);
			// get size of printer page (in pixels)
			int cxPage = pDC->GetDeviceCaps(HORZRES);
			int cyPage = pDC->GetDeviceCaps(VERTRES);
			//int dcbpp = pDC->GetDeviceCaps(BITSPIXEL);
			//int dcnc = pDC->GetDeviceCaps(NUMCOLORS);
			//int dcp = pDC->GetDeviceCaps(PLANES);
			// get printer pixels per inch
			int cxInch = pDC->GetDeviceCaps(LOGPIXELSX);
			int cyInch = pDC->GetDeviceCaps(LOGPIXELSY);
			// Best Fit case: create a rectangle which preserves the aspect ratio
			int cx = ima->GetXDPI() ? (ima->GetWidth()*cxInch)/ima->GetXDPI():ima->GetWidth()*cxInch/96;
			int cy = ima->GetYDPI() ? (ima->GetHeight()*cyInch)/ima->GetYDPI():ima->GetHeight()*cyInch/96;
			// print it!
			/*HDC TmpDC=CreateCompatibleDC(pDC->GetSafeHdc());
			HBITMAP bm =::CreateCompatibleBitmap(pDC->GetSafeHdc(), cx, cy);
			HBITMAP oldbm = (HBITMAP)::SelectObject(TmpDC,bm);
			BitBlt(TmpDC,0,0,cx,cy,0,0,0,WHITENESS);
			ima->Draw(TmpDC,CRect(0,0,cx,cy));
			BitBlt(pDC->GetSafeHdc(),100,100,cx,cy,TmpDC,0,0,SRCCOPY);
			DeleteObject(SelectObject(TmpDC,oldbm));
			DeleteDC(TmpDC);*/
			CxImage tmp;
			tmp.Copy(*ima);
#if CXIMAGE_SUPPORT_ALPHA
			RGBQUAD c={255,255,255,0};
			if (tmp.GetTransIndex()>=0) tmp.SetPaletteColor((BYTE)tmp.GetTransIndex(),c);
			tmp.SetTransColor(c);
			tmp.AlphaStrip();
#endif
			tmp.Stretch(pDC->GetSafeHdc(), CRect(100,100,cx,cy));
		} else {

#define USER_DRAW3 0

			if (pDoc->GetStretchMode()) {
				CRect rect;
				GetClientRect(&rect);
#if USER_DRAW3
				ima->Draw3(pDC->GetSafeHdc(), rect, 0, false);
#else
                ima->Draw(pDC->GetSafeHdc(), rect,0, pDoc->GetSmoothMode()!=0);
#endif 
			} else {
				float zoom=pDoc->GetZoomFactor();
				if (zoom==1)
#if USER_DRAW3
                    ima->Draw3(pDC->GetSafeHdc());
#else
					ima->Draw(pDC->GetSafeHdc());
#endif 
				else
                {
#if USER_DRAW3
                    ima->Draw3(pDC->GetSafeHdc(),
                        CRect(0,0,(int)(ima->GetWidth()*zoom),(int)(ima->GetHeight()*zoom)), 
                    NULL, false);
#else
                    ima->Draw(pDC->GetSafeHdc(),
                        CRect(0,0,(int)(ima->GetWidth()*zoom),(int)(ima->GetHeight()*zoom)),
                        0, pDoc->GetSmoothMode()!=0);
#endif
                }
			}

			if ( m_tracker.m_rect.Width()>0 && m_tracker.m_rect.Height()>0 )
				m_tracker.Draw(pDC);
		}
	}