#include <BitmapMonochromeFilter.hxx>
Public Member Functions | |
| BitmapMonochromeFilter (sal_uInt8 cThreshold) | |
| Convert to 2 color bitmap. More... | |
| virtual BitmapEx | execute (BitmapEx const &rBitmapEx) const override |
 Public Member Functions inherited from BitmapFilter | |
| BitmapFilter () | |
| virtual | ~BitmapFilter () |
| virtual BitmapEx | execute (BitmapEx const &rBitmapEx) const =0 |
Private Attributes | |
| sal_uInt8 | mcThreshold |
Additional Inherited Members | |
| Static Public Member Functions inherited from BitmapFilter | |
| static bool | Filter (BitmapEx &rBmpEx, BitmapFilter const &rFilter) |
| static bool | Filter (Animation &rBmpEx, BitmapFilter const &rFilter) |
Detailed Description
Definition at line 16 of file BitmapMonochromeFilter.hxx.
Constructor & Destructor Documentation
◆ BitmapMonochromeFilter()
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inline |
Convert to 2 color bitmap.
Converts to a 2 color indexed bitmap - note that we don't change to black and white monochrome, but we pick the closest color to black and white in the bitmap.
- Parameters
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cThreshold Luminance value that determines whether the colour should be black (or closest color to black) or white (or closest color to white).
Definition at line 30 of file BitmapMonochromeFilter.hxx.
Member Function Documentation
◆ execute()
Implements BitmapFilter.
Definition at line 17 of file BitmapMonochromeFilter.cxx.
References aMap, COL_BLACK(), COL_WHITE(), BitmapEx::GetBitmap(), Bitmap::GetGreyPalette(), BitmapReadAccess::GetIndexFromData(), Color::GetLuminance(), BitmapInfoAccess::GetPaletteColor(), BitmapReadAccess::GetPixelFromData(), Bitmap::GetPrefMapMode(), Bitmap::GetPrefSize(), BitmapReadAccess::GetScanline(), Bitmap::GetSizePixel(), BitmapInfoAccess::HasPalette(), mcThreshold, vcl::N8_BPP, vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::reset(), Bitmap::SetPrefMapMode(), and Bitmap::SetPrefSize().
Member Data Documentation
◆ mcThreshold
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private |
Definition at line 38 of file BitmapMonochromeFilter.hxx.
Referenced by execute().
The documentation for this class was generated from the following files:
