NS_IMETHODIMP nsDeviceContextOS2 :: GetDeviceContextFor(nsIDeviceContextSpec *aDevice,
nsIDeviceContext *&aContext)
{
PRTQUEUE *pq;
aContext = new nsDeviceContextOS2();
if(nsnull != aContext){
NS_ADDREF(aContext);
} else {
return NS_ERROR_OUT_OF_MEMORY;
}
((nsDeviceContextOS2 *)aContext)->mSpec = aDevice;
NS_ADDREF(aDevice);
int numCopies = 0;
int printerDest = 0;
char *file = nsnull;
((nsDeviceContextSpecOS2 *)aDevice)->GetPRTQUEUE(pq);
((nsDeviceContextSpecOS2 *)aDevice)->GetCopies(numCopies);
((nsDeviceContextSpecOS2 *)aDevice)->GetDestination(printerDest);
if (!printerDest)
((nsDeviceContextSpecOS2 *)aDevice)->GetPath(&file);
HDC dc = PrnOpenDC(pq, "Mozilla", numCopies, printerDest, file);
if (!dc) {
return NS_ERROR_FAILURE; //PMERROR("DevOpenDC");
} /* endif */
return ((nsDeviceContextOS2 *)aContext)->Init((nsNativeDeviceContext)dc, this);
}
NS_IMETHODIMP nsDeviceContextSpecOS2::GetSurfaceForPrinter(gfxASurface **surface)
{
NS_ASSERTION(mQueue, "Queue can't be NULL here");
nsRefPtr<gfxASurface> newSurface;
PRInt16 outputFormat;
mPrintSettings->GetOutputFormat(&outputFormat);
// for now always set the output format to PDF, see bug 415522:
printf("print output format is %d but we are setting it to %d (PDF)\n",
outputFormat, nsIPrintSettings::kOutputFormatPDF);
outputFormat = nsIPrintSettings::kOutputFormatPDF;
mPrintSettings->SetOutputFormat(outputFormat); // save PDF format in settings
if (outputFormat == nsIPrintSettings::kOutputFormatPDF) {
nsXPIDLString filename;
mPrintSettings->GetToFileName(getter_Copies(filename));
nsresult rv;
if (filename.IsEmpty()) {
// print to a file that is visible, like one on the Desktop
nsCOMPtr<nsIFile> pdfLocation;
rv = NS_GetSpecialDirectory(NS_OS_DESKTOP_DIR, getter_AddRefs(pdfLocation));
NS_ENSURE_SUCCESS(rv, rv);
// construct a print output name using the current time, to make it
// unique and not overwrite existing files
char printName[CCHMAXPATH];
PRExplodedTime time;
PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &time);
snprintf(printName, CCHMAXPATH-1, "%s_%04d%02d%02d_%02d%02d%02d.pdf",
MOZ_APP_DISPLAYNAME, time.tm_year, time.tm_month+1, time.tm_mday,
time.tm_hour, time.tm_min, time.tm_sec);
printName[CCHMAXPATH-1] = '\0';
nsCAutoString printString(printName);
rv = pdfLocation->AppendNative(printString);
NS_ENSURE_SUCCESS(rv, rv);
rv = pdfLocation->GetPath(filename);
NS_ENSURE_SUCCESS(rv, rv);
}
#ifdef debug_thebes_print
printf("nsDeviceContextSpecOS2::GetSurfaceForPrinter(): print to filename=%s\n",
NS_LossyConvertUTF16toASCII(filename).get());
#endif
double width, height;
mPrintSettings->GetEffectivePageSize(&width, &height);
// convert twips to points
width /= TWIPS_PER_POINT_FLOAT;
height /= TWIPS_PER_POINT_FLOAT;
nsCOMPtr<nsILocalFile> file = do_CreateInstance("@mozilla.org/file/local;1");
rv = file->InitWithPath(filename);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIFileOutputStream> stream = do_CreateInstance("@mozilla.org/network/file-output-stream;1");
rv = stream->Init(file, -1, -1, 0);
if (NS_FAILED(rv))
return rv;
newSurface = new(std::nothrow) gfxPDFSurface(stream, gfxSize(width, height));
} else {
int numCopies = 0;
int printerDest = 0;
char *filename = nsnull;
GetCopies(numCopies);
GetDestination(printerDest);
if (!printerDest) {
GetPath(&filename);
}
mPrintingStarted = PR_TRUE;
mPrintDC = PrnOpenDC(mQueue, "Mozilla", numCopies, printerDest, filename);
double width, height;
mPrintSettings->GetEffectivePageSize(&width, &height);
#ifdef debug_thebes_print
printf("nsDeviceContextSpecOS2::GetSurfaceForPrinter(): %fx%ftwips, copies=%d\n",
width, height, numCopies);
#endif
// we need pixels, so scale from twips to the printer resolution
// and take into account that CAPS_*_RESOLUTION are in px/m, default
// to approx. 100dpi
double hDPI = 3937., vDPI = 3937.;
LONG value;
if (DevQueryCaps(mPrintDC, CAPS_HORIZONTAL_RESOLUTION, 1, &value))
hDPI = value * 0.0254;
if (DevQueryCaps(mPrintDC, CAPS_VERTICAL_RESOLUTION, 1, &value))
vDPI = value * 0.0254;
width = width * hDPI / 1440;
height = height * vDPI / 1440;
#ifdef debug_thebes_print
printf("nsDeviceContextSpecOS2::GetSurfaceForPrinter(): %fx%fpx (res=%fx%f)\n"
" expected size: %7.2f MiB\n",
width, height, hDPI, vDPI, width*height*4./1024./1024.);
#endif
// perhaps restrict to usable area
// (this or scaling down won't help, we will just get more pages and still crash!)
if (DevQueryCaps(mPrintDC, CAPS_WIDTH, 1, &value) && width > (double)value)
width = (double)value;
if (DevQueryCaps(mPrintDC, CAPS_HEIGHT, 1, &value) && height > (double)value)
height = (double)value;
#ifdef debug_thebes_print
printf("nsDeviceContextSpecOS2::GetSurfaceForPrinter(): capped? %fx%fpx (res=%fx%f)\n"
" expected size: %7.2f MiB per page\n",
width, height, hDPI, vDPI, width*height*4./1024./1024.);
#endif
// Now pass the created DC into the thebes surface for printing.
// It gets destroyed there.
newSurface = new(std::nothrow)
gfxOS2Surface(mPrintDC, gfxIntSize(int(ceil(width)), int(ceil(height))));
}
if (!newSurface) {
*surface = nsnull;
return NS_ERROR_FAILURE;
}
*surface = newSurface;
NS_ADDREF(*surface);
return NS_OK;
}
