BOOL CSonicImage::Load(HGLOBAL hGlobal, DWORD dwSize)
{
if(m_gif.LoadGif(hGlobal, dwSize) == 1)
{
if(PrepareMemDC(m_gif.GetWidth(), m_gif.GetHeight()) == FALSE)
{
m_gif.Clear();
return FALSE;
}
m_gif.Draw(m_Dib.GetSafeHdc());
}
else
{
BYTE * pData = (BYTE *)GlobalLock(hGlobal);
CxImage img;
img.Decode(pData, dwSize, 0);
GlobalUnlock(hGlobal);
if(PrepareMemDC(img.GetWidth(), img.GetHeight()) == FALSE)
{
img.Clear();
return FALSE;
}
if(!img.AlphaIsValid())
{
img.Draw(m_Dib.GetSafeHdc());
CSSE::DoOr(0xff000000, m_Dib.GetBits(), m_Dib.GetSize());
}
else
{
if(img.GetBpp() != 24)
{
img.Clear();
return FALSE;
}
BYTE * pSrc = img.GetBits();
BYTE * pAlpha = img.AlphaGetBits();
BYTE * pMyBits = m_Dib.GetBits();
int nLineTail = m_nWidth % 4;
for(int i = 0; i < m_nHeight; i++)
{
for(int j = 0; j < m_nWidth; j++)
{
*pMyBits++ = *pSrc++;
*pMyBits++ = *pSrc++;
*pMyBits++ = *pSrc++;
*pMyBits++ = *pAlpha++;
}
pSrc += nLineTail;
}
EnableAlphaChannel();
}
img.Clear();
}
return TRUE;
}
bool SaveThumb(CxImage &image, const char *file, const char *thumb, int maxWidth, int maxHeight, bool bNeedToConvert = true, bool autoRotate = true)
{
// ok, now resample the image down if necessary
int ret = ResampleKeepAspectArea(image, maxWidth * maxHeight);
if (ret < 0) return false;
if (ret) bNeedToConvert = true;
// if we don't have a png but have a < 24 bit image, then convert to 24bits
if ( image.GetNumColors())
{
if (!image.IncreaseBpp(24) || !image.IsValid())
{
printf("PICTURE::SaveThumb: Unable to convert to 24bpp: Error:%s\n", image.GetLastError());
return false;
}
bNeedToConvert = true;
}
if ( autoRotate && image.GetExifInfo()->Orientation > 1)
{
image.RotateExif(image.GetExifInfo()->Orientation);
bNeedToConvert = true;
}
#ifndef _LINUX
::DeleteFile(thumb);
#else
unlink(thumb);
#endif
// only resave the image if we have to (quality of the JPG saver isn't too hot!)
if (bNeedToConvert)
{
// May as well have decent quality thumbs
image.SetJpegQuality(90);
if (!image.Save(thumb, image.AlphaIsValid() ? CXIMAGE_FORMAT_PNG : CXIMAGE_FORMAT_JPG))
{
printf("PICTURE::SaveThumb: Unable to save image: %s Error:%s\n", thumb, image.GetLastError());
::DeleteFile(thumb);
return false;
}
}
else
{ // Don't need to convert the file - copy it instead
if (!CopyFile(file, thumb))
{
printf("PICTURE::SaveThumb: Unable to copy file %s\n", file);
::DeleteFile(thumb);
return false;
}
}
return true;
}
//////////////////////////////////////////////////////////////////////////////
// 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);
}