void ZStackObjectSelector::setSelection(ZStackObject *obj, bool selecting)
{
if (selecting) {
selectObject(obj);
} else {
deselectObject(obj);
}
}
void ZSelector<T>::setSelection(T obj, bool selecting)
{
if (selecting) {
selectObject(obj);
} else {
deselectObject(obj);
}
}
bool Bitmap::loadBitmap(LPCTSTR pszFilename)
{
// Loads a BMP image and stores it in the Bitmap object.
HANDLE hImage = LoadImage(GetModuleHandle(0), pszFilename, IMAGE_BITMAP, 0,
0, LR_CREATEDIBSECTION | LR_LOADFROMFILE);
if (!hImage)
return false;
BITMAP bitmap = {0};
if (!GetObject(hImage, sizeof(bitmap), &bitmap))
{
DeleteObject(hImage);
return false;
}
HDC hImageDC = CreateCompatibleDC(0);
if (!hImageDC)
{
DeleteObject(hImage);
return false;
}
SelectObject(hImageDC, hImage);
int h = (bitmap.bmHeight < 0) ? -bitmap.bmHeight : bitmap.bmHeight;
if (create(bitmap.bmWidth, h))
{
selectObject();
if (!BitBlt(dc, 0, 0, width, height, hImageDC, 0, 0, SRCCOPY))
{
destroy();
DeleteDC(hImageDC);
DeleteObject(hImage);
return false;
}
deselectObject();
}
DeleteDC(hImageDC);
DeleteObject(hImage);
return true;
}
void Bitmap::destroy()
{
deselectObject();
if (hBitmap)
{
DeleteObject(hBitmap);
hBitmap = 0;
}
if (dc)
{
DeleteDC(dc);
dc = 0;
}
width = height = pitch = 0;
m_hPrevObj = 0;
m_pBits = 0;
}
bool Bitmap::loadDesktop()
{
// Takes a screen capture of the current Windows desktop and stores
// the image in the Bitmap object.
HWND hDesktop = GetDesktopWindow();
if (!hDesktop)
return false;
int desktopWidth = GetSystemMetrics(SM_CXSCREEN);
int desktopHeight = GetSystemMetrics(SM_CYSCREEN);
HDC hDesktopDC = GetDCEx(hDesktop, 0, DCX_CACHE | DCX_WINDOW);
if (!hDesktopDC)
return false;
if (!create(desktopWidth, desktopHeight))
{
ReleaseDC(hDesktop, hDesktopDC);
return false;
}
selectObject();
if (!BitBlt(dc, 0, 0, width, height, hDesktopDC, 0, 0, SRCCOPY))
{
destroy();
ReleaseDC(hDesktop, hDesktopDC);
return false;
}
deselectObject();
ReleaseDC(hDesktop, hDesktopDC);
return true;
}
bool Bitmap::loadPicture(LPCTSTR pszFilename)
{
// Loads an image using the IPicture COM interface.
// Supported image formats: BMP, EMF, GIF, ICO, JPG, WMF, TGA.
//
// Based on code from MSDN Magazine, October 2001.
// http://msdn.microsoft.com/msdnmag/issues/01/10/c/default.aspx
// IPicture interface doesn't support TGA files.
if (_tcsstr(pszFilename, _T(".TGA")) || _tcsstr(pszFilename, _T(".tga")))
return loadTarga(pszFilename);
HRESULT hr = 0;
HANDLE hFile = 0;
HGLOBAL hGlobal = 0;
IStream *pIStream = 0;
IPicture *pIPicture = 0;
BYTE *pBuffer = 0;
DWORD dwFileSize = 0;
DWORD dwBytesRead = 0;
LONG lWidth = 0;
LONG lHeight = 0;
if (!m_logpixelsx && !m_logpixelsy)
{
HDC hScreenDC = CreateCompatibleDC(GetDC(0));
if (!hScreenDC)
return false;
m_logpixelsx = GetDeviceCaps(hScreenDC, LOGPIXELSX);
m_logpixelsy = GetDeviceCaps(hScreenDC, LOGPIXELSY);
DeleteDC(hScreenDC);
}
hFile = CreateFile(pszFilename, FILE_READ_DATA, FILE_SHARE_READ, 0,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (hFile == INVALID_HANDLE_VALUE)
return false;
if (!(dwFileSize = GetFileSize(hFile, 0)))
{
CloseHandle(hFile);
return false;
}
if (!(hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_NODISCARD, dwFileSize)))
{
CloseHandle(hFile);
return false;
}
if (!(pBuffer = reinterpret_cast<BYTE*>(GlobalLock(hGlobal))))
{
GlobalFree(hGlobal);
CloseHandle(hFile);
return false;
}
if (!ReadFile(hFile, pBuffer, dwFileSize, &dwBytesRead, 0))
{
GlobalUnlock(hGlobal);
GlobalFree(hGlobal);
CloseHandle(hFile);
return false;
}
GlobalUnlock(hGlobal);
CloseHandle(hFile);
if (FAILED(CreateStreamOnHGlobal(hGlobal, FALSE, &pIStream)))
{
GlobalFree(hGlobal);
return false;
}
if (FAILED(OleLoadPicture(pIStream, 0, FALSE, IID_IPicture,
reinterpret_cast<LPVOID*>(&pIPicture))))
{
pIStream->Release();
GlobalFree(hGlobal);
return false;
}
pIStream->Release();
GlobalFree(hGlobal);
pIPicture->get_Width(&lWidth);
pIPicture->get_Height(&lHeight);
width = MulDiv(lWidth, m_logpixelsx, HIMETRIC_INCH);
height = MulDiv(lHeight, m_logpixelsy, HIMETRIC_INCH);
if (!create(width, height))
{
pIPicture->Release();
return false;
}
selectObject();
hr = pIPicture->Render(dc, 0, 0, width, height, 0, lHeight, lWidth, -lHeight, 0);
deselectObject();
pIPicture->Release();
return (SUCCEEDED(hr)) ? true : false;
}
