diff options
Diffstat (limited to 'vcl/source/filter/GraphicFormatDetector.cxx')
| -rw-r--r-- | vcl/source/filter/GraphicFormatDetector.cxx | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/vcl/source/filter/GraphicFormatDetector.cxx b/vcl/source/filter/GraphicFormatDetector.cxx index 4a2117b6f5b9..69aa225eb108 100644 --- a/vcl/source/filter/GraphicFormatDetector.cxx +++ b/vcl/source/filter/GraphicFormatDetector.cxx @@ -28,6 +28,255 @@ namespace vcl { +bool peekGraphicFormat(SvStream& rStream, OUString& rFormatExtension, bool bTest) +{ + vcl::GraphicFormatDetector aDetector(rStream, rFormatExtension); + if (!aDetector.detect()) + return false; + + // The following variable is used when bTest == true. It remains false + // if the format (rFormatExtension) has not yet been set. + bool bSomethingTested = false; + + // Now the different formats are checked. The order *does* matter. e.g. a MET file + // could also go through the BMP test, however, a BMP file can hardly go through the MET test. + // So MET should be tested prior to BMP. However, theoretically a BMP file could conceivably + // go through the MET test. These problems are of course not only in MET and BMP. + // Therefore, in the case of a format check (bTest == true) we only test *exactly* this + // format. Everything else could have fatal consequences, for example if the user says it is + // a BMP file (and it is a BMP) file, and the file would go through the MET test ... + + if (!bTest || rFormatExtension.startsWith("MET")) + { + bSomethingTested = true; + if (aDetector.checkMET()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("BMP")) + { + bSomethingTested = true; + if (aDetector.checkBMP()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("WMF") || rFormatExtension.startsWith("EMF")) + { + bSomethingTested = true; + if (aDetector.checkWMForEMF()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PCX")) + { + bSomethingTested = true; + if (aDetector.checkPCX()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("TIF")) + { + bSomethingTested = true; + if (aDetector.checkTIF()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("GIF")) + { + bSomethingTested = true; + if (aDetector.checkGIF()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PNG")) + { + bSomethingTested = true; + if (aDetector.checkPNG()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("JPG")) + { + bSomethingTested = true; + if (aDetector.checkJPG()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("SVM")) + { + bSomethingTested = true; + if (aDetector.checkSVM()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PCD")) + { + bSomethingTested = true; + if (aDetector.checkPCD()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PSD")) + { + bSomethingTested = true; + if (aDetector.checkPSD()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("EPS")) + { + bSomethingTested = true; + if (aDetector.checkEPS()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("DXF")) + { + if (aDetector.checkDXF()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PCT")) + { + bSomethingTested = true; + if (aDetector.checkPCT()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PBM") || rFormatExtension.startsWith("PGM") + || rFormatExtension.startsWith("PPM")) + { + bSomethingTested = true; + if (aDetector.checkPBMorPGMorPPM()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("RAS")) + { + bSomethingTested = true; + if (aDetector.checkRAS()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest) + { + bSomethingTested = true; + if (aDetector.checkXPM()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + else if (rFormatExtension.startsWith("XPM")) + { + return true; + } + + if (!bTest) + { + if (aDetector.checkXBM()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + else if (rFormatExtension.startsWith("XBM")) + { + return true; + } + + if (!bTest) + { + if (aDetector.checkSVG()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + else if (rFormatExtension.startsWith("SVG")) + { + return true; + } + + if (!bTest || rFormatExtension.startsWith("TGA")) + { + bSomethingTested = true; + if (aDetector.checkTGA()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("MOV")) + { + if (aDetector.checkMOV()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + if (!bTest || rFormatExtension.startsWith("PDF")) + { + if (aDetector.checkPDF()) + { + rFormatExtension = aDetector.msDetectedFormat; + return true; + } + } + + return bTest && !bSomethingTested; +} + namespace { bool isPCT(SvStream& rStream, sal_uLong nStreamPos, sal_uLong nStreamLen) |