int Pdfsync::DocToSource(UINT pageNo, PointI pt, ScopedMem<WCHAR>& filename, UINT *line, UINT *col)
{
if (IsIndexDiscarded())
if (RebuildIndex() != PDFSYNCERR_SUCCESS)
return PDFSYNCERR_SYNCFILE_CANNOT_BE_OPENED;
// find the entry in the index corresponding to this page
if (pageNo <= 0 || pageNo >= sheetIndex.Count() || pageNo > (UINT)engine->PageCount())
return PDFSYNCERR_INVALID_PAGE_NUMBER;
// PdfSync coordinates are y-inversed
RectI mbox = engine->PageMediabox(pageNo).Round();
pt.y = mbox.dy - pt.y;
// distance to the closest pdf location (in the range <PDFSYNC_EPSILON_SQUARE)
UINT closest_xydist = UINT_MAX;
UINT selected_record = UINT_MAX;
// If no record is found within a distance^2 of PDFSYNC_EPSILON_SQUARE
// (selected_record == -1) then we pick up the record that is closest
// vertically to the hit-point.
UINT closest_ydist = UINT_MAX; // vertical distance between the hit point and the vertically-closest record
UINT closest_xdist = UINT_MAX; // horizontal distance between the hit point and the vertically-closest record
UINT closest_ydist_record = UINT_MAX; // vertically-closest record
// read all the sections of 'p' declarations for this pdf sheet
for (size_t i = sheetIndex.At(pageNo); i < points.Count() && points.At(i).page == pageNo; i++) {
// check whether it is closer than the closest point found so far
UINT dx = abs(pt.x - (int)SYNC_TO_PDF_COORDINATE(points.At(i).x));
UINT dy = abs(pt.y - (int)SYNC_TO_PDF_COORDINATE(points.At(i).y));
UINT dist = dx * dx + dy * dy;
if (dist < PDFSYNC_EPSILON_SQUARE && dist < closest_xydist) {
selected_record = points.At(i).record;
closest_xydist = dist;
}
else if ((closest_xydist == UINT_MAX) && dy < PDFSYNC_EPSILON_Y &&
(dy < closest_ydist || (dy == closest_ydist && dx < closest_xdist))) {
closest_ydist_record = points.At(i).record;
closest_ydist = dy;
closest_xdist = dx;
}
}
if (selected_record == UINT_MAX)
selected_record = closest_ydist_record;
if (selected_record == UINT_MAX)
return PDFSYNCERR_NO_SYNC_AT_LOCATION; // no record was found close enough to the hit point
// We have a record number, we need to find its declaration ('l ...') in the syncfile
PdfsyncLine cmp; cmp.record = selected_record;
PdfsyncLine *found = (PdfsyncLine *)bsearch(&cmp, lines.LendData(), lines.Count(), sizeof(PdfsyncLine), cmpLineRecords);
assert(found);
if (!found)
return PDFSYNCERR_NO_SYNC_AT_LOCATION;
filename.Set(str::Dup(srcfiles.At(found->file)));
*line = found->line;
*col = found->column;
return PDFSYNCERR_SUCCESS;
}
static void BenchFile(const WCHAR *filePath, const WCHAR *pagesSpec)
{
if (!file::Exists(filePath)) {
return;
}
// ad-hoc: if enabled times layout instead of rendering and does layout
// using all text rendering methods, so that we can compare and find
// docs that take a long time to load
if (Doc::IsSupportedFile(filePath) && !gGlobalPrefs->ebookUI.useFixedPageUI) {
BenchEbookLayout(filePath);
return;
}
if (ChmModel::IsSupportedFile(filePath) && !gGlobalPrefs->chmUI.useFixedPageUI) {
BenchChmLoadOnly(filePath);
return;
}
Timer total;
logbench(L"Starting: %s", filePath);
Timer t;
BaseEngine *engine = EngineManager::CreateEngine(filePath);
if (!engine) {
logbench(L"Error: failed to load %s", filePath);
return;
}
double timeMs = t.Stop();
logbench(L"load: %.2f ms", timeMs);
int pages = engine->PageCount();
logbench(L"page count: %d", pages);
if (nullptr == pagesSpec) {
for (int i = 1; i <= pages; i++) {
BenchLoadRender(engine, i);
}
}
assert(!pagesSpec || IsBenchPagesInfo(pagesSpec));
Vec<PageRange> ranges;
if (ParsePageRanges(pagesSpec, ranges)) {
for (size_t i = 0; i < ranges.Count(); i++) {
for (int j = ranges.At(i).start; j <= ranges.At(i).end; j++) {
if (1 <= j && j <= pages)
BenchLoadRender(engine, j);
}
}
}
delete engine;
total.Stop();
logbench(L"Finished (in %.2f ms): %s", total.GetTimeInMs(), filePath);
}
static void BenchFile(TCHAR *filePath, const TCHAR *pagesSpec)
{
if (!file::Exists(filePath)) {
return;
}
Timer total(true);
logbench("Starting: %s", filePath);
Timer t(true);
BaseEngine *engine = EngineManager(!gUseEbookUI).CreateEngine(filePath);
t.Stop();
if (!engine) {
logbench("Error: failed to load %s", filePath);
return;
}
double timems = t.GetTimeInMs();
logbench("load: %.2f ms", timems);
int pages = engine->PageCount();
logbench("page count: %d", pages);
if (NULL == pagesSpec) {
for (int i = 1; i <= pages; i++) {
BenchLoadRender(engine, i);
}
}
assert(!pagesSpec || IsBenchPagesInfo(pagesSpec));
Vec<PageRange> ranges;
if (ParsePageRanges(pagesSpec, ranges)) {
for (size_t i = 0; i < ranges.Count(); i++) {
for (int j = ranges.At(i).start; j <= ranges.At(i).end; j++) {
if (1 <= j && j <= pages)
BenchLoadRender(engine, j);
}
}
}
delete engine;
total.Stop();
logbench("Finished (in %.2f ms): %s", total.GetTimeInMs(), filePath);
}
IFACEMETHODIMP PreviewBase::DoPreview()
{
WNDCLASSEX wcex = { 0 };
wcex.cbSize = sizeof(wcex);
wcex.lpfnWndProc = PreviewWndProc;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.lpszClassName = _T("SumatraPDF_PreviewPane");
wcex.style = CS_HREDRAW | CS_VREDRAW;
RegisterClassEx(&wcex);
m_hwnd = CreateWindow(wcex.lpszClassName, NULL, WS_CHILD | WS_VSCROLL | WS_VISIBLE,
m_rcParent.x, m_rcParent.x, m_rcParent.dx, m_rcParent.dy,
m_hwndParent, NULL, NULL, NULL);
if (!m_hwnd)
return HRESULT_FROM_WIN32(GetLastError());
this->renderer = NULL;
SetWindowLongPtr(m_hwnd, GWLP_USERDATA, (LONG_PTR)this);
BaseEngine *engine = GetEngine();
int pageCount = 1;
if (engine) {
pageCount = engine->PageCount();
this->renderer = new PageRenderer(engine, m_hwnd);
// don't use the engine afterwards directly (cf. PageRenderer::preventRecursion)
engine = NULL;
}
SCROLLINFO si = { 0 };
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
si.nPos = 1;
si.nMin = 1;
si.nMax = pageCount;
si.nPage = si.nMax > 1 ? 1 : 2;
SetScrollInfo(m_hwnd, SB_VERT, &si, TRUE);
ShowWindow(m_hwnd, SW_SHOW);
return S_OK;
}
bool PrintFile(const WCHAR *fileName, const WCHAR *printerName, bool displayErrors, const WCHAR *settings)
{
if (!HasPermission(Perm_PrinterAccess))
return false;
ScopedMem<WCHAR> fileName2(path::Normalize(fileName));
BaseEngine *engine = EngineManager::CreateEngine(!gUseEbookUI, fileName2);
if (!engine || !engine->AllowsPrinting()) {
if (displayErrors)
MessageBox(NULL, _TR("Cannot print this file"), _TR("Printing problem."), MB_ICONEXCLAMATION | MB_OK | (IsUIRightToLeft() ? MB_RTLREADING : 0));
return false;
}
HANDLE printer;
bool ok = OpenPrinter((WCHAR *)printerName, &printer, NULL);
if (!ok) {
if (displayErrors)
MessageBox(NULL, _TR("Printer with given name doesn't exist"), _TR("Printing problem."), MB_ICONEXCLAMATION | MB_OK | (IsUIRightToLeft() ? MB_RTLREADING : 0));
return false;
}
// get printer driver information
DWORD needed = 0;
GetPrinter(printer, 2, NULL, 0, &needed);
ScopedMem<PRINTER_INFO_2> infoData((PRINTER_INFO_2 *)AllocArray<BYTE>(needed));
if (infoData)
ok = GetPrinter(printer, 2, (LPBYTE)infoData.Get(), needed, &needed);
if (!ok || !infoData || needed <= sizeof(PRINTER_INFO_2)) goto Exit;
LONG structSize = DocumentProperties(NULL,
printer, /* Handle to our printer. */
(WCHAR *)printerName, /* Name of the printer. */
NULL, /* Asking for size, so */
NULL, /* these are not used. */
0); /* Zero returns buffer size. */
if (structSize < sizeof(DEVMODE)) {
// If failure, inform the user, cleanup and return failure.
if (displayErrors)
MessageBox(NULL, _TR("Could not obtain Printer properties"), _TR("Printing problem."), MB_ICONEXCLAMATION | MB_OK | (IsUIRightToLeft() ? MB_RTLREADING : 0));
goto Exit;
}
LPDEVMODE devMode = (LPDEVMODE)malloc(structSize);
if (!devMode) goto Exit;
// Get the default DevMode for the printer and modify it for your needs.
LONG returnCode = DocumentProperties(NULL,
printer,
(WCHAR *)printerName,
devMode, /* The address of the buffer to fill. */
NULL, /* Not using the input buffer. */
DM_OUT_BUFFER); /* Have the output buffer filled. */
if (IDOK != returnCode) {
// If failure, inform the user, cleanup and return failure.
if (displayErrors)
MessageBox(NULL, _TR("Could not obtain Printer properties"), _TR("Printing problem."), MB_ICONEXCLAMATION | MB_OK | (IsUIRightToLeft() ? MB_RTLREADING : 0));
goto Exit;
}
ClosePrinter(printer);
printer = NULL;
{
Print_Advanced_Data advanced;
Vec<PRINTPAGERANGE> ranges;
ApplyPrintSettings(settings, engine->PageCount(), ranges, advanced);
PrintData pd(engine, infoData, devMode, ranges, advanced);
ok = PrintToDevice(pd);
if (!ok && displayErrors)
MessageBox(NULL, _TR("Couldn't initialize printer"), _TR("Printing problem."),
MB_ICONEXCLAMATION | MB_OK | (IsUIRightToLeft() ? MB_RTLREADING : 0));
}
Exit:
free(devMode);
if (printer)
ClosePrinter(printer);
delete engine;
return ok;
}
bool PrintFile(const WCHAR *fileName, WCHAR *printerName, bool displayErrors, const WCHAR *settings)
{
bool ok = false;
if (!HasPermission(Perm_PrinterAccess))
return false;
ScopedMem<WCHAR> fileName2(path::Normalize(fileName));
BaseEngine *engine = EngineManager::CreateEngine(fileName2, true /* prefer Chm2Engine */);
#ifndef DISABLE_DOCUMENT_RESTRICTIONS
if (engine && !engine->AllowsPrinting()) {
delete engine;
engine = NULL;
}
#endif
if (!engine) {
if (displayErrors)
MessageBoxWarning(NULL, _TR("Cannot print this file"), _TR("Printing problem."));
return false;
}
HANDLE printer;
BOOL res = OpenPrinter(printerName, &printer, NULL);
if (0 == res) {
if (displayErrors)
MessageBoxWarning(NULL, _TR("Printer with given name doesn't exist"), _TR("Printing problem."));
return false;
}
LPDEVMODE devMode = NULL;
// get printer driver information
DWORD needed = 0;
GetPrinter(printer, 2, NULL, 0, &needed);
ScopedMem<PRINTER_INFO_2> infoData((PRINTER_INFO_2 *)AllocArray<BYTE>(needed));
if (infoData)
res = GetPrinter(printer, 2, (LPBYTE)infoData.Get(), needed, &needed);
if ((0 == res) || !infoData || needed <= sizeof(PRINTER_INFO_2))
goto Exit;
LONG structSize = DocumentProperties(NULL,
printer,
printerName,
NULL, /* Asking for size, so */
NULL, /* not used. */
0); /* Zero returns buffer size. */
if (structSize < sizeof(DEVMODE)) {
// If failure, inform the user, cleanup and return failure.
if (displayErrors)
MessageBoxWarning(NULL, _TR("Could not obtain Printer properties"), _TR("Printing problem."));
goto Exit;
}
devMode = (LPDEVMODE)malloc(structSize);
if (!devMode)
goto Exit;
// Get the default DevMode for the printer and modify it for your needs.
LONG returnCode = DocumentProperties(NULL,
printer,
printerName,
devMode, /* The address of the buffer to fill. */
NULL, /* Not using the input buffer. */
DM_OUT_BUFFER); /* Have the output buffer filled. */
if (IDOK != returnCode) {
// If failure, inform the user, cleanup and return failure.
if (displayErrors)
MessageBoxWarning(NULL, _TR("Could not obtain Printer properties"), _TR("Printing problem."));
goto Exit;
}
ClosePrinter(printer);
printer = NULL;
{
Print_Advanced_Data advanced;
Vec<PRINTPAGERANGE> ranges;
ApplyPrintSettings(settings, engine->PageCount(), ranges, advanced, devMode);
PrintData pd(engine, infoData, devMode, ranges, advanced);
ok = PrintToDevice(pd);
if (!ok && displayErrors)
MessageBoxWarning(NULL, _TR("Couldn't initialize printer"), _TR("Printing problem."));
}
Exit:
free(devMode);
if (printer)
ClosePrinter(printer);
delete engine;
return ok;
}
int SyncTex::SourceToDoc(const WCHAR* srcfilename, UINT line, UINT col, UINT *page, Vec<RectI> &rects)
{
if (IsIndexDiscarded())
if (RebuildIndex() != PDFSYNCERR_SUCCESS)
return PDFSYNCERR_SYNCFILE_CANNOT_BE_OPENED;
assert(this->scanner);
ScopedMem<WCHAR> srcfilepath;
// convert the source file to an absolute path
if (PathIsRelative(srcfilename))
srcfilepath.Set(PrependDir(srcfilename));
else
srcfilepath.Set(str::Dup(srcfilename));
if (!srcfilepath)
return PDFSYNCERR_OUTOFMEMORY;
bool isUtf8 = true;
char *mb_srcfilepath = str::conv::ToUtf8(srcfilepath);
TryAgainAnsi:
if (!mb_srcfilepath)
return PDFSYNCERR_OUTOFMEMORY;
int ret = synctex_display_query(this->scanner, mb_srcfilepath, line, col);
free(mb_srcfilepath);
// recent SyncTeX versions encode in UTF-8 instead of ANSI
if (isUtf8 && -1 == ret) {
isUtf8 = false;
mb_srcfilepath = str::conv::ToAnsi(srcfilepath);
goto TryAgainAnsi;
}
if (-1 == ret)
return PDFSYNCERR_UNKNOWN_SOURCEFILE;
if (0 == ret)
return PDFSYNCERR_NOSYNCPOINT_FOR_LINERECORD;
synctex_node_t node;
int firstpage = -1;
rects.Reset();
while ((node = synctex_next_result(this->scanner)) != NULL) {
if (firstpage == -1) {
firstpage = synctex_node_page(node);
if (firstpage <= 0 || firstpage > engine->PageCount())
continue;
*page = (UINT)firstpage;
}
if (synctex_node_page(node) != firstpage)
continue;
RectD rc;
rc.x = synctex_node_box_visible_h(node);
rc.y = synctex_node_box_visible_v(node) - synctex_node_box_visible_height(node);
rc.dx = synctex_node_box_visible_width(node),
rc.dy = synctex_node_box_visible_height(node) + synctex_node_box_visible_depth(node);
rects.Push(rc.Round());
}
if (firstpage <= 0)
return PDFSYNCERR_NOSYNCPOINT_FOR_LINERECORD;
return PDFSYNCERR_SUCCESS;
}
// see http://itexmac.sourceforge.net/pdfsync.html for the specification
int Pdfsync::RebuildIndex()
{
size_t len;
ScopedMem<char> data(file::ReadAll(syncfilepath, &len));
if (!data)
return PDFSYNCERR_SYNCFILE_CANNOT_BE_OPENED;
// convert the file data into a list of zero-terminated strings
str::TransChars(data, "\r\n", "\0\0");
// parse preamble (jobname and version marker)
char *line = data;
char *dataEnd = data + len;
// replace star by spaces (TeX uses stars instead of spaces in filenames)
str::TransChars(line, "*/", " \\");
ScopedMem<WCHAR> jobName(str::conv::FromAnsi(line));
jobName.Set(str::Join(jobName, L".tex"));
jobName.Set(PrependDir(jobName));
line = Advance0Line(line, dataEnd);
UINT versionNumber = 0;
if (!line || !str::Parse(line, "version %u", &versionNumber) || versionNumber != 1)
return PDFSYNCERR_SYNCFILE_CANNOT_BE_OPENED;
// reset synchronizer database
srcfiles.Reset();
lines.Reset();
points.Reset();
fileIndex.Reset();
sheetIndex.Reset();
Vec<size_t> filestack;
UINT page = 1;
sheetIndex.Append(0);
// add the initial tex file to the source file stack
filestack.Push(srcfiles.Count());
srcfiles.Append(jobName.StealData());
PdfsyncFileIndex findex = { 0 };
fileIndex.Append(findex);
PdfsyncLine psline;
PdfsyncPoint pspoint;
// parse data
UINT maxPageNo = engine->PageCount();
while ((line = Advance0Line(line, dataEnd)) != NULL) {
if (!line)
break;
switch (*line) {
case 'l':
psline.file = filestack.Last();
if (str::Parse(line, "l %u %u %u", &psline.record, &psline.line, &psline.column))
lines.Append(psline);
else if (str::Parse(line, "l %u %u", &psline.record, &psline.line)) {
psline.column = 0;
lines.Append(psline);
}
// else dbg("Bad 'l' line in the pdfsync file");
break;
case 's':
if (str::Parse(line, "s %u", &page))
sheetIndex.Append(points.Count());
// else dbg("Bad 's' line in the pdfsync file");
// if (0 == page || page > maxPageNo)
// dbg("'s' line with invalid page number in the pdfsync file");
break;
case 'p':
pspoint.page = page;
if (0 == page || page > maxPageNo)
/* ignore point for invalid page number */;
else if (str::Parse(line, "p %u %u %u", &pspoint.record, &pspoint.x, &pspoint.y))
points.Append(pspoint);
else if (str::Parse(line, "p* %u %u %u", &pspoint.record, &pspoint.x, &pspoint.y))
points.Append(pspoint);
// else dbg("Bad 'p' line in the pdfsync file");
break;
case '(':
{
ScopedMem<WCHAR> filename(str::conv::FromAnsi(line + 1));
// if the filename contains quotes then remove them
// TODO: this should never happen!?
if (filename[0] == '"' && filename[str::Len(filename) - 1] == '"')
filename.Set(str::DupN(filename + 1, str::Len(filename) - 2));
// undecorate the filepath: replace * by space and / by \
str::TransChars(filename, L"*/", L" \\");
// if the file name extension is not specified then add the suffix '.tex'
if (str::IsEmpty(path::GetExt(filename)))
filename.Set(str::Join(filename, L".tex"));
// ensure that the path is absolute
if (PathIsRelative(filename))
filename.Set(PrependDir(filename));
filestack.Push(srcfiles.Count());
srcfiles.Append(filename.StealData());
findex.start = findex.end = lines.Count();
fileIndex.Append(findex);
}
break;
case ')':
if (filestack.Count() > 1)
fileIndex.At(filestack.Pop()).end = lines.Count();
// else dbg("Unbalanced ')' line in the pdfsync file");
break;
default:
// dbg("Ignoring invalid pdfsync line starting with '%c'", *line);
break;
}
}
fileIndex.At(0).end = lines.Count();
assert(filestack.Count() == 1);
return Synchronizer::RebuildIndex();
}
