?? imageboardview.cpp
字號:
// document changed
CDocument* pDoc = GetDocument();
pDoc->SetModifiedFlag(TRUE);
}
DeleteFloatWnd();
}
void CImageBoardView::DeleteFloatDib()
{
// if selected rect is exist, cut it
CutSelectedRect();
// if float DIB window exist, delete it
DeleteFloatWnd();
}
void CImageBoardView::CutFloatDib()
{
// copy to clipboard first
CopyToClipboard();
// then delete
DeleteFloatDib();
}
void CImageBoardView::CopyToClipboard()
{
// Clean clipboard of contents, and copy the DIB/DDB/PAL.
// Actual copy will occured in WM_RENDERALLFORMATS/WM_RENDERFORMAT
if (OpenClipboard())
{
EmptyClipboard();
HDIB hDib;
HBITMAP hBitmap;
HPALETTE hPalette;
// if there is float dib, copy it
if (m_pFloatWnd)
{
hDib = CopyHandle(m_pFloatWnd->m_hDibFloat);
hBitmap = DIBToBitmap(m_pFloatWnd->m_hDibFloat, (HPALETTE)m_pDib->m_pPalette->GetSafeHandle());
hPalette = CopyPalette((HPALETTE)m_pDib->m_pPalette->GetSafeHandle());
}
else // otherwise, copy the entire DIB
{
hDib = CopyHandle(m_pDib->m_hDib);
hBitmap = DIBToBitmap(m_pDib->m_hDib, (HPALETTE)m_pDib->m_pPalette->GetSafeHandle ());
hPalette = CopyPalette((HPALETTE)m_pDib->m_pPalette->GetSafeHandle());
}
// set them to clipboard
SetClipboardData(CF_DIB, hDib);
SetClipboardData(CF_BITMAP, hBitmap);
SetClipboardData(CF_PALETTE, hPalette);
CloseClipboard();
}
}
void CImageBoardView::Cut()
{
// copy to clipboard first
CopyToClipboard();
// then delete
Delete();
}
void CImageBoardView::Delete()
{
if (m_pFloatWnd) // clip area
DeleteFloatDib();
else // entire DIB
{
m_pDib->Destroy();
// modify document flags
CSize sizeTotal(0, 0);
SetScrollSizes(MM_TEXT, sizeTotal);
CDocument* pDoc = GetDocument();
pDoc->UpdateAllViews(NULL);
pDoc->SetModifiedFlag(TRUE);
}
}
BOOL CImageBoardView::PasteDibFromClipboard()
{
// get DIB handle from clipboard
HDIB hNewDIB = NULL;
if (OpenClipboard())
{
if (IsClipboardFormatAvailable(CF_DIB))
hNewDIB = CopyHandle(GetClipboardData(CF_DIB));
CloseClipboard();
}
if (hNewDIB == NULL)
return FALSE;
// if current DIB is empty, use the pasted one as current
if (m_pDib->IsEmpty())
{
// create current DIB
LPBYTE lpDIB = (LPBYTE)GlobalLock(hNewDIB);
m_pDib->Create(lpDIB);
GlobalUnlock(hNewDIB);
GlobalFree(hNewDIB);
// modify document flags
CSize sizeTotal(m_pDib->GetWidth(), m_pDib->GetHeight());
SetScrollSizes(MM_TEXT, sizeTotal);
CDocument* pDoc = GetDocument();
OnRealizePal((WPARAM)m_hWnd,0); // realize the new palette
pDoc->UpdateAllViews(NULL);
pDoc->SetModifiedFlag(TRUE);
}
else // put it in float DIB window
{
if (AdjustSize(hNewDIB))
{
// empty current rectangle
m_rcClip.SetRectEmpty();
CreateFloatWnd(hNewDIB, CPoint(0, 0));
}
}
return TRUE;
}
BOOL CImageBoardView::PasteBitmapFromClipboard()
{
// get DIB handle from clipboard
HBITMAP hNewDDB = NULL;
HPALETTE hPal = NULL;
if (OpenClipboard())
{
if (IsClipboardFormatAvailable(CF_BITMAP))
hNewDDB = (HBITMAP)GetClipboardData(CF_BITMAP);
if (IsClipboardFormatAvailable(CF_PALETTE))
hPal = (HPALETTE)GetClipboardData(CF_PALETTE);
CloseClipboard();
}
if (hNewDDB == NULL)
return FALSE;
// if current DIB is empty, use the pasted one as current
if (m_pDib->IsEmpty())
{
// create current DIB
m_pDib->Create(hNewDDB, hPal);
// modify document flags
CSize sizeTotal(m_pDib->GetWidth(), m_pDib->GetHeight());
SetScrollSizes(MM_TEXT, sizeTotal);
CDocument* pDoc = GetDocument();
OnRealizePal((WPARAM)m_hWnd,0); // realize the new palette
pDoc->UpdateAllViews(NULL);
pDoc->SetModifiedFlag(TRUE);
}
else // put it in float DIB window
{
// empty current rectangle
m_rcClip.SetRectEmpty();
HDIB hDib = BitmapToDIB(hNewDDB, (HPALETTE)m_pDib->m_pPalette->GetSafeHandle());
if (AdjustSize(hDib))
{
HDIB hNewDib = ConvertDIBFormat(hDib, m_pDib->GetBitCount(), (HPALETTE)m_pDib->m_pPalette->GetSafeHandle());
DestroyDIB(hDib);
CreateFloatWnd(hNewDib, CPoint(0, 0));
}
}
return TRUE;
}
BOOL CImageBoardView::PastePalFromClipboard()
{
// egt DIB handle from clipboard
HPALETTE hPal = NULL;
if (OpenClipboard())
{
if (IsClipboardFormatAvailable(CF_PALETTE))
hPal = (HPALETTE)GetClipboardData(CF_PALETTE);
CloseClipboard();
}
if (hPal == NULL)
return FALSE;
// if current DIB is empty, do nothing
if (m_pDib->IsEmpty())
return FALSE;
// get color bits
int nEntries;
WORD wBpp;
GetObject(hPal, sizeof(int), &nEntries);
if (nEntries > 16)
wBpp = 8;
else if (nEntries > 2)
wBpp = 4;
else
wBpp = 1;
// convert to new DIB
HDIB hNewDib = ConvertDIBFormat(m_pDib->m_hDib, wBpp, hPal);
if (! hNewDib)
return FALSE;
m_pDib->Destroy();
// create current DIB
LPBYTE lpDIB = (LPBYTE)GlobalLock(hNewDib);
m_pDib->Create(lpDIB);
GlobalUnlock(hNewDib);
GlobalFree(hNewDib);
// modify document flags
CDocument* pDoc = GetDocument();
OnRealizePal((WPARAM)m_hWnd,0); // realize the new palette
pDoc->UpdateAllViews(NULL);
pDoc->SetModifiedFlag(TRUE);
return TRUE;
}
void CImageBoardView::SelectPaste(int nCF)
{
switch(nCF)
{
case CF_DIB:
PasteDibFromClipboard();
return;
case CF_BITMAP:
PasteBitmapFromClipboard();
return;
case CF_PALETTE:
PastePalFromClipboard();
return;
}
}
void CImageBoardView::Paste()
{
if (! PasteDibFromClipboard())
if (! PasteBitmapFromClipboard())
PastePalFromClipboard();
}
LRESULT CImageBoardView::OnRealizePal(WPARAM wParam, LPARAM lParam)
{
ASSERT(wParam != NULL);
if (m_pDib->IsEmpty())
return 0L; // must be a new document
CPalette* pPal = m_pDib->GetPalette();
if (pPal != NULL)
{
CWnd* pAppFrame = AfxGetApp()->m_pMainWnd;
CClientDC appDC(pAppFrame);
// All views but one should be a background palette.
// wParam contains a handle to the active view, so the SelectPalette
// bForceBackground flag is FALSE only if wParam == m_hWnd (this view)
CPalette* oldPalette = appDC.SelectPalette(pPal, ((HWND)wParam) != m_hWnd);
if (oldPalette != NULL)
{
UINT nColorsChanged = appDC.RealizePalette();
if (nColorsChanged > 0)
GetDocument()->UpdateAllViews(NULL);
appDC.SelectPalette(oldPalette, TRUE);
}
else
{
TRACE0("\tSelectPalette failed in CImageBoardView::OnPaletteChanged\n");
}
}
return 0L;
}
void CImageBoardView::Rotate(double fAngle)
{
if (m_pFloatWnd)
{
LPBYTE lpDIB = (LPBYTE)GlobalLock(m_pFloatWnd->m_hDibFloat);
CDib dib;
if (! dib.Create(lpDIB))
return;
GlobalUnlock(m_pFloatWnd->m_hDibFloat);
if (fAngle == 90.0)
dib.Rotate90();
else if (fAngle == 180.0)
dib.Rotate180();
else if (fAngle == 270.0)
dib.Rotate270();
else
dib.Rotate(fAngle, RGB(0,0,0));
// get float window position
CRect rcFloat;
m_pFloatWnd->GetWindowRect(&rcFloat);
CPoint ptTopLeft = rcFloat.TopLeft();
ScreenToClient(&ptTopLeft);
// delete old float window
DeleteFloatWnd();
CutSelectedRect();
// create float window
// get DIB width and height
int nWidth = (int)dib.GetWidth();
int nHeight = (int)dib.GetHeight();
CRect rc(ptTopLeft.x, ptTopLeft.y, ptTopLeft.x+nWidth, ptTopLeft.y+nHeight);
// create it
HDIB hDib = CopyHandle(dib.GetHandle());
m_pFloatWnd = new CFloatDibWnd(hDib, rc, this);
}
else // otherwise, copy the entire DIB
{
if (fAngle == 90.0)
m_pDib->Rotate90();
else if (fAngle == 180.0)
m_pDib->Rotate180();
else if (fAngle == 270.0)
m_pDib->Rotate270();
else
m_pDib->Rotate(fAngle, RGB(0,0,0));
}
}
void CImageBoardView::Flip(int nDirection)
{
if (m_pFloatWnd)
{
LPBYTE lpDIB = (LPBYTE)GlobalLock(m_pFloatWnd->m_hDibFloat);
CDib dib;
if (! dib.Create(lpDIB))
return;
GlobalUnlock(m_pFloatWnd->m_hDibFloat);
switch (nDirection)
{
case MD_HORZ:
dib.FlipHorz();
break;
case MD_VERT:
dib.FlipVert();
break;
}
// get float window position
CRect rcFloat;
m_pFloatWnd->GetWindowRect(&rcFloat);
CPoint ptTopLeft = rcFloat.TopLeft();
ScreenToClient(&ptTopLeft);
// delete old float window
DeleteFloatWnd();
CutSelectedRect();
// create float window
// get DIB width and height
int nWidth = (int)dib.GetWidth();
int nHeight = (int)dib.GetHeight();
CRect rc(ptTopLeft.x, ptTopLeft.y, ptTopLeft.x+nWidth, ptTopLeft.y+nHeight);
// create it
HDIB hDib = CopyHandle(dib.GetHandle());
m_pFloatWnd = new CFloatDibWnd(hDib, rc, this);
}
else // otherwise, copy the entire DIB
{
switch (nDirection)
{
case MD_HORZ:
m_pDib->FlipHorz();
break;
case MD_VERT:
m_pDib->FlipVert();
break;
}
}
}
void CImageBoardView::Zoom(double fRatioX, double fRatioY)
{
if (m_pFloatWnd)
{
LPBYTE lpDIB = (LPBYTE)GlobalLock(m_pFloatWnd->m_hDibFloat);
CDib dib;
if (! dib.Create(lpDIB))
return;
GlobalUnlock(m_pFloatWnd->m_hDibFloat);
dib.Zoom(fRatioX, fRatioY);
// get float window position
CRect rcFloat;
m_pFloatWnd->GetWindowRect(&rcFloat);
CPoint ptTopLeft = rcFloat.TopLeft();
ScreenToClient(&ptTopLeft);
// delete old float window
DeleteFloatWnd();
CutSelectedRect();
// create float window
// get DIB width and height
int nWidth = (int)dib.GetWidth();
int nHeight = (int)dib.GetHeight();
CRect rc(ptTopLeft.x, ptTopLeft.y, ptTopLeft.x+nWidth, ptTopLeft.y+nHeight);
// create it
HDIB hDib = CopyHandle(dib.GetHandle());
m_pFloatWnd = new CFloatDibWnd(hDib, rc, this);
}
else // otherwise, copy the entire DIB
{
m_pDib->Zoom(fRatioX, fRatioY);
}
}
void CImageBoardView::ChangeImageSize(int nWidth, int nHeight)
{
if (m_pFloatWnd)
{
LPBYTE lpDIB = (LPBYTE)GlobalLock(m_pFloatWnd->m_hDibFloat);
CDib dib;
if (! dib.Create(lpDIB))
return;
GlobalUnlock(m_pFloatWnd->m_hDibFloat);
dib.ChangeImageSize(nWidth, nHeight);
// get float window position
CRect rcFloat;
m_pFloatWnd->GetWindowRect(&rcFloat);
CPoint ptTopLeft = rcFloat.TopLeft();
ScreenToClient(&ptTopLeft);
// delete old float window
DeleteFloatWnd();
CutSelectedRect();
// create float window
// get DIB width and height
int nWidth = (int)dib.GetWidth();
int nHeight = (int)dib.GetHeight();
CRect rc(ptTopLeft.x, ptTopLeft.y, ptTopLeft.x+nWidth, ptTopLeft.y+nHeight);
// create it
HDIB hDib = CopyHandle(dib.GetHandle());
m_pFloatWnd = new CFloatDibWnd(hDib, rc, this);
}
else // otherwise, copy the entire DIB
{
m_pDib->ChangeImageSize(nWidth, nHeight);
}
}
void CImageBoardView::ChangeCanvasSize(int nWidth, int nHeight, int nPosition)
{
if (m_pFloatWnd)
{
LPBYTE lpDIB = (LPBYTE)GlobalLock(m_pFloatWnd->m_hDibFloat);
CDib dib;
if (! dib.Create(lpDIB))
return;
GlobalUnlock(m_pFloatWnd->m_hDibFloat);
dib.ChangeCanvasSize(nWidth, nHeight, nPosition);
// get float window position
CRect rcFloat;
m_pFloatWnd->GetWindowRect(&rcFloat);
CPoint ptTopLeft = rcFloat.TopLeft();
ScreenToClient(&ptTopLeft);
// delete old float window
DeleteFloatWnd();
CutSelectedRect();
// create float window
// get DIB width and height
int nWidth = (int)dib.GetWidth();
int nHeight = (int)dib.GetHeight();
CRect rc(ptTopLeft.x, ptTopLeft.y, ptTopLeft.x+nWidth, ptTopLeft.y+nHeight);
// create it
HDIB hDib = CopyHandle(dib.GetHandle());
m_pFloatWnd = new CFloatDibWnd(hDib, rc, this);
}
else // otherwise, copy the entire DIB
{
m_pDib->ChangeCanvasSize(nWidth, nHeight, nPosition);
}
}
void CImageBoardView::Crop()
{
if (! m_rcClip.IsRectEmpty())
{
m_pDib->Crop(m_rcClip);
DeleteFloatWnd();
m_rcClip.SetRectEmpty();
}
}
HBRUSH CImageBoardView::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CScrollView::OnCtlColor(pDC, pWnd, nCtlColor);
if (pWnd->m_hWnd == m_EditText.m_hWnd)
pDC->SetTextColor(m_crPenColor);
// TODO: Return a different brush if the default is not desired
return hbr;
}
int CImageBoardView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CScrollView::OnCreate(lpCreateStruct) == -1)
return -1;
m_hCursorFreeline = AfxGetApp()->LoadCursor(IDC_CURSORFREELINE);
m_hCursorEraser = AfxGetApp()->LoadCursor(IDC_CURSORERASER);
m_hCursorPicker = AfxGetApp()->LoadCursor(IDC_CURSORPICKER);
m_hCursorFill = AfxGetApp()->LoadCursor(IDC_CURSORFILL);
m_hCursorCurve = AfxGetApp()->LoadCursor(IDC_CURSORCURVE);
LOGFONT lf;
HFONT hFont = (HFONT)GetStockObject(SYSTEM_FONT);
GetObject(hFont, sizeof(LOGFONT), &lf);
m_pFont = new CFont;
m_pFont->CreateFontIndirect(&lf);
return 0;
}
BOOL CImageBoardView::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
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