void CDemoView::DrawSelection()
{
CDemoDoc* pDoc = GetDocument();
if (pDoc->m_NumSel>2){
CPoint pos(GetScrollPosition());
float zoom=pDoc->GetZoomFactor();
m_SelCount=m_SelShift;
// pDC->MoveTo(zoom*pDoc->m_Sel[0].x - pos.x,zoom*pDoc->m_Sel[0].y - pos.y);
for(int i=1;i<pDoc->m_NumSel;i++){
// pDC->LineTo(zoom*pDoc->m_Sel[i].x - pos.x,zoom*pDoc->m_Sel[i].y - pos.y);
LineDDA((int)(zoom*pDoc->m_Sel[i-1].x - pos.x),
(int)(zoom*pDoc->m_Sel[i-1].y - pos.y),
(int)(zoom*pDoc->m_Sel[i].x - pos.x),
(int)(zoom*pDoc->m_Sel[i].y - pos.y),
(LINEDDAPROC)LineDDAProc,(LPARAM)this);
}
}
}
//////////////////////////////////////////////////////////////////////////////
// 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) {
// 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);
RGBQUAD c={255,255,255,0};
if (tmp.GetTransIndex()>=0) tmp.SetPaletteColor((BYTE)tmp.GetTransIndex(),c);
tmp.SetTransColor(c);
tmp.AlphaStrip();
tmp.Stretch(pDC->GetSafeHdc(), CRect(100,100,cx,cy));
} else {
if (pDoc->GetStretchMode()) {
CRect rect;
GetClientRect(&rect);
ima->Draw(pDC->GetSafeHdc(), rect,0,pDoc->GetSmoothMode()!=0);
} else {
float zoom=pDoc->GetZoomFactor();
if (zoom==1)
ima->Draw(pDC->GetSafeHdc());
else
ima->Draw(pDC->GetSafeHdc(),
CRect(0,0,(int)(ima->GetWidth()*zoom),(int)(ima->GetHeight()*zoom)),
0,pDoc->GetSmoothMode()!=0);
}
if ( m_tracker.m_rect.Width()>0 && m_tracker.m_rect.Height()>0 )
m_tracker.Draw(pDC);
}
}
delete pMemDC;
}
void CDemoView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint)
{
switch (lHint)
{
case WM_USER_NEWIMAGE:
{
m_tracker.m_rect = CRect(0,0,0,0);
CDemoDoc* pDoc = GetDocument();
CxImage* ima = pDoc->GetImage();
if (ima) {
int px=GetScrollPos(SB_HORZ);
int py=GetScrollPos(SB_VERT);
CSize sz(GetTotalSize());
int x=(int)(ima->GetWidth()*pDoc->GetZoomFactor());
int y=(int)(ima->GetHeight()*pDoc->GetZoomFactor());
SetScrollSizes(MM_TEXT, CSize(x,y));
CSize sz2(GetTotalSize());
CWnd* pFrame=GetParentFrame();
RECT rClient;
pFrame->GetClientRect(&rClient);
if (sz.cx!=0 && sz.cy!=0){
if (x>rClient.right) SetScrollPos(SB_HORZ,sz2.cx*px/sz.cx); else SetScrollPos(SB_HORZ,0);
if (y>rClient.bottom) SetScrollPos(SB_VERT,sz2.cy*py/sz.cy); else SetScrollPos(SB_VERT,0);
}
if (!(pFrame->IsIconic()||pFrame->IsZoomed())){
RECT rMainCl,rFrame,rMainFr;
((CMainFrame *)(AfxGetApp()->m_pMainWnd))->GetClientRect(&rMainCl);
((CMainFrame *)(AfxGetApp()->m_pMainWnd))->GetWindowRect(&rMainFr);
pFrame->GetWindowRect(&rFrame);
pFrame->SetWindowPos(0,0,0,
(4+rFrame.right-rFrame.left-rClient.right+rClient.left)+
min(rMainCl.right-(rFrame.left-rMainFr.left+12),x),
(4+rFrame.bottom-rFrame.top-rClient.bottom+rClient.top)+
min(rMainCl.bottom-(rFrame.top-rMainFr.top+12),y),
SWP_NOMOVE|SWP_NOZORDER);
//ResizeParentToFit(1);
}
if (!ima->SelectionIsValid()) KillTimer(1);
#ifdef VATI_EXTENSIONS
ima->SetJpegQualityF(theApp.m_optJpegQuality);
#if CXIMAGE_SUPPORT_JPG
ima->SetCodecOption(theApp.m_optJpegOptions,CXIMAGE_FORMAT_JPG);
#endif
#if CXIMAGE_SUPPORT_RAW
ima->SetCodecOption(theApp.m_optRawOptions,CXIMAGE_FORMAT_RAW);
#endif
#endif
CMainFrame* pMain = (CMainFrame*) AfxGetMainWnd();
if (pMain->m_HistoBar.IsWindowVisible()){
pDoc->m_hmax=ima->Histogram(pDoc->m_hr,pDoc->m_hg,pDoc->m_hb,pDoc->m_hgray);
pMain->m_HistoBar.Invalidate();
} else {
pDoc->m_hmax = 0;
}
}
break;
}
default:
{
CDemoDoc* pDoc = GetDocument();
if (pDoc){
CxImage* ima = pDoc->GetImage();
if (ima){
if (pDoc->GetStretchMode()) SetScrollSizes(MM_TEXT, CSize(0,0));
else SetScrollSizes(MM_TEXT,CSize((int)(ima->GetWidth()*pDoc->GetZoomFactor()),
(int)(ima->GetHeight()*pDoc->GetZoomFactor())));
}
}
}
}
CScrollView::OnUpdate(pSender, lHint, pHint);
}
//////////////////////////////////////////////////////////////////////////////
// CDemoView message handlers
//////////////////////////////////////////////////////////////////////////////
void CDemoView::OnMouseMove(UINT nFlags, CPoint point)
{
CDemoDoc* pDoc = GetDocument();
CxImage* ima = pDoc->GetImage();
if (!ima) return;
// We'll get the RGB values at the point the user selects
long x = point.x;
long y = point.y;
GetImageXY(pDoc, ima, &x,&y);
TCHAR s[80];
if (ima->IsInside(x,y)) {
long yflip = ima->GetHeight() - y - 1;
_stprintf(s,_T("x: %d y: %d idx: %d"), x, y, ima->GetPixelIndex(x,yflip));
RGBQUAD rgb=ima->GetPixelColor(x,yflip);
if (ima->AlphaIsValid()) rgb.rgbReserved=ima->AlphaGet(x,yflip);
else rgb.rgbReserved=ima->GetPaletteColor(ima->GetPixelIndex(x,yflip)).rgbReserved;
_stprintf(&s[_tcslen(s)],_T(" RGBA: (%d, %d, %d, %d)"), rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue, rgb.rgbReserved);
//Enable these lines if you want draw over the image
//if ((nFlags & MK_LBUTTON)==MK_LBUTTON){
// ima->SetPixelColor(x,yflip,RGB(rand()/(RAND_MAX/256),rand()/(RAND_MAX/256),rand()/(RAND_MAX/256)));
// Invalidate(0);
//}
#ifdef VATI_EXTENSIONS
if (nFlags & MK_RBUTTON && !(nFlags & MK_LBUTTON))
{
switch (pDoc->m_tool){
case 1: // selection
if ( nFlags & MK_CONTROL ) // CTRL+right button: move selection
{
for (int i=0; i<pDoc->m_NumSel; i++)
{
pDoc->m_Sel[i].x += (long)(x-m_oldPnt.x);
pDoc->m_Sel[i].y += (long)(y-m_oldPnt.y);
}
m_oldPnt.x = x;
m_oldPnt.y = y;
//redraw selection
CWnd* pFrame=GetParentFrame();
RECT rClient;
pFrame->GetClientRect(&rClient);
pFrame->RedrawWindow( &rClient, NULL, RDW_INVALIDATE | RDW_UPDATENOW);
DrawSelection();
}
else if ( !(nFlags & MK_CONTROL) && pDoc->m_isRectSel && pDoc->m_NumSel==5 )
{
// calculate angle difference looking from rectangle center
double d_angle =
atan2( (y - m_orgPnt.y), (x - m_orgPnt.x) )
- atan2( (m_oldPnt.y - m_orgPnt.y), (m_oldPnt.x - m_orgPnt.x) );
m_oldPnt.x = x;
m_oldPnt.y = y;
Dpoint2d p;
// rotate corner points around center point
for(int i=0;i<5;i++)
{
p.x = m_dpnt[i].x - m_orgPnt.x;
p.y = m_dpnt[i].y - m_orgPnt.y;
m_dpnt[i].x = p.x*cos(d_angle) - p.y*sin(d_angle) + m_orgPnt.x;
m_dpnt[i].y = p.x*sin(d_angle) + p.y*cos(d_angle) + m_orgPnt.y;
// write back to selection
pDoc->m_Sel[i].x = (long)m_dpnt[i].x ;
pDoc->m_Sel[i].y = (long)m_dpnt[i].y ;
}
// redraw the rectangle
CWnd* pFrame=GetParentFrame();
RECT rClient;
pFrame->GetClientRect(&rClient);
pFrame->RedrawWindow( &rClient, NULL, RDW_INVALIDATE | RDW_UPDATENOW);
DrawSelection();
}
break;
} // end switch
} // end if MK_RBUTTON
#endif
if (nFlags & MK_LBUTTON)
switch (pDoc->m_tool){
case 0: // move
{
SetCursor(LoadCursor(0,IDC_SIZEALL));
CSize sz(GetTotalSize());
CWnd* pFrame=GetParentFrame();
RECT rClient;
pFrame->GetClientRect(&rClient);
if (sz.cx>rClient.right) SetScrollPos(SB_HORZ,m_RefScroll.x - point.x + m_RefPoint.x); else SetScrollPos(SB_HORZ,0);
if (sz.cy>rClient.bottom) SetScrollPos(SB_VERT,m_RefScroll.y - point.y + m_RefPoint.y); else SetScrollPos(SB_VERT,0);
Invalidate(0);
break;
}
case 1: //selection
SetCursor(LoadCursor(0,IDC_CROSS));
#if CXIMAGE_DEMO_SELECT
#ifdef VATI_EXTENSIONS
if ( nFlags & MK_SHIFT )
{
// rectangle selection
pDoc->m_isRectSel = 1;
// in rectangle mode, selection array has 0,1 or 5 points
if (!pDoc->m_NumSel)
{
pDoc->m_Sel[0].x = x;
pDoc->m_Sel[0].y = y;
pDoc->m_NumSel = 1;
}
else // already has at least one corner
{
pDoc->m_Sel[1].x = x;
pDoc->m_Sel[1].y = pDoc->m_Sel[0].y;
pDoc->m_Sel[2].x = x;
pDoc->m_Sel[2].y = y;
pDoc->m_Sel[3].x = pDoc->m_Sel[0].x;
pDoc->m_Sel[3].y = y;
//close the rectangle:
pDoc->m_Sel[4].x = pDoc->m_Sel[0].x;
pDoc->m_Sel[4].y = pDoc->m_Sel[0].y;
pDoc->m_NumSel = 5;
}
// delete old rectangle from display:
CWnd* pFrame=GetParentFrame();
RECT rClient;
pFrame->GetClientRect(&rClient);
pFrame->RedrawWindow( &rClient, NULL, RDW_INVALIDATE | RDW_UPDATENOW);
// draw the new rectangle
DrawSelection();
}
else
#endif
{
//freehand selection (original)
float zoom=pDoc->GetZoomFactor();
CPoint pos(GetScrollPosition());
int i=pDoc->m_NumSel;
pDoc->m_Sel[i].x = (long)((point.x + pos.x)/zoom);
pDoc->m_Sel[i].y = (long)((point.y + pos.y)/zoom);
if (i<(MAX_SEL_POINTS-2)) pDoc->m_NumSel++;
DrawSelection();
}
#endif
} //end switch
} else _tcscpy(s,_T(" "));
CStatusBar& statusBar = ((CMainFrame *)(AfxGetApp()->m_pMainWnd))->GetStatusBar();
statusBar.SetPaneText(0, s);
CScrollView::OnMouseMove(nFlags, point);
}