// refresh the preferences when a different SumatraPDF process saves them
// or if they are edited by the user using a text editor
bool Reload()
{
ScopedMem<WCHAR> path(GetSettingsPath());
if (!file::Exists(path))
return false;
// make sure that the settings file is readable - else wait
// a short while to prevent accidental dataloss
int tryAgainCount = 5;
HANDLE h = file::OpenReadOnly(path);
while (INVALID_HANDLE_VALUE == h && tryAgainCount-- > 0) {
Sleep(200);
h = file::OpenReadOnly(path);
}
if (INVALID_HANDLE_VALUE == h) {
// prefer not reloading to resetting all settings
return false;
}
ScopedHandle hScope(h);
FILETIME time = file::GetModificationTime(path);
if (FileTimeEq(time, gGlobalPrefs->lastPrefUpdate))
return true;
ScopedMem<char> uiLanguage(str::Dup(gGlobalPrefs->uiLanguage));
bool showToolbar = gGlobalPrefs->showToolbar;
bool invertColors = gGlobalPrefs->fixedPageUI.invertColors;
gFileHistory.UpdateStatesSource(NULL);
CleanUp();
bool ok = Load();
CrashAlwaysIf(!ok || !gGlobalPrefs);
gGlobalPrefs->fixedPageUI.invertColors = invertColors;
// TODO: about window doesn't have to be at position 0
if (gWindows.Count() > 0 && gWindows.At(0)->IsAboutWindow()) {
gWindows.At(0)->DeleteInfotip();
gWindows.At(0)->staticLinks.Reset();
gWindows.At(0)->RedrawAll(true);
}
if (!str::Eq(uiLanguage, gGlobalPrefs->uiLanguage))
SetCurrentLanguageAndRefreshUi(gGlobalPrefs->uiLanguage);
if (gGlobalPrefs->showToolbar != showToolbar)
ShowOrHideToolbarGlobally();
UpdateDocumentColors();
UpdateFavoritesTreeForAllWindows();
return true;
}
static bool AppendEntry(str::Str<char>& data, str::Str<char>& content, const WCHAR *filePath, const char *inArchiveName, lzma::FileInfo *fi=NULL)
{
size_t nameLen = str::Len(inArchiveName);
CrashIf(nameLen > UINT32_MAX - 25);
uint32_t headerSize = 25 + (uint32_t)nameLen;
FILETIME ft = file::GetModificationTime(filePath);
if (fi && FileTimeEq(ft, fi->ftModified)) {
ReusePrevious:
ByteWriterLE meta(data.AppendBlanks(24), 24);
meta.Write32(headerSize);
meta.Write32(fi->compressedSize);
meta.Write32(fi->uncompressedSize);
meta.Write32(fi->uncompressedCrc32);
meta.Write32(ft.dwLowDateTime);
meta.Write32(ft.dwHighDateTime);
data.Append(inArchiveName, nameLen + 1);
return content.AppendChecked(fi->compressedData, fi->compressedSize);
}
size_t fileDataLen;
ScopedMem<char> fileData(file::ReadAll(filePath, &fileDataLen));
if (!fileData || fileDataLen >= UINT32_MAX) {
fprintf(stderr, "Failed to read \"%S\" for compression\n", filePath);
return false;
}
uint32_t fileDataCrc = crc32(0, (const uint8_t *)fileData.Get(), (uint32_t)fileDataLen);
if (fi && fi->uncompressedCrc32 == fileDataCrc && fi->uncompressedSize == fileDataLen)
goto ReusePrevious;
size_t compressedSize = fileDataLen + 1;
ScopedMem<char> compressed((char *)malloc(compressedSize));
if (!compressed)
return false;
if (!Compress(fileData, fileDataLen, compressed, &compressedSize))
return false;
ByteWriterLE meta(data.AppendBlanks(24), 24);
meta.Write32(headerSize);
meta.Write32((uint32_t)compressedSize);
meta.Write32((uint32_t)fileDataLen);
meta.Write32(fileDataCrc);
meta.Write32(ft.dwLowDateTime);
meta.Write32(ft.dwHighDateTime);
data.Append(inArchiveName, nameLen + 1);
return content.AppendChecked(compressed, compressedSize);
}
static void hexstrTest() {
unsigned char buf[6] = {1, 2, 33, 255, 0, 18};
unsigned char buf2[6] = {0};
AutoFree s(_MemToHex(&buf));
utassert(str::Eq(s, "010221ff0012"));
bool ok = _HexToMem(s, &buf2);
utassert(ok);
utassert(memeq(buf, buf2, sizeof(buf)));
FILETIME ft1, ft2;
GetSystemTimeAsFileTime(&ft1);
s.Set(_MemToHex(&ft1));
_HexToMem(s, &ft2);
DWORD diff = FileTimeDiffInSecs(ft1, ft2);
utassert(0 == diff);
utassert(FileTimeEq(ft1, ft2));
s.Set(str::MemToHex(nullptr, 0));
utassert(str::Eq(s, ""));
ok = str::HexToMem(s, nullptr, 0);
utassert(ok);
}
