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Rogue Wave Views Foundation Package API Reference Guide |
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Rogue Wave Views Foundation Package API Reference Guide |
Rogue Wave Views Documentation Home |
Bitmap streamer class. More...
#include <ilviews/bitmaps/rgb.h>
Public Member Functions | |
| IlvRGBStreamer () | |
| Constructor. | |
| IlBoolean | canRead () const |
| Indicates that the instance can read from a stream. More... | |
| IlBoolean | canWrite () const |
| Indicates that the instance can write to a stream. More... | |
| IlBoolean | checkSignature (const IlUChar *data, IlUInt size) |
| Checks the signature of the input stream. More... | |
| IlUInt | getAlphaLevel () const |
| Gets the alpha level of the RGB streamer. More... | |
| IlvBitmapData * | read (IL_STDPREF istream &stream) |
| Reads an RGB image from a stream. More... | |
| void | setAlphaLevel (IlUInt level) |
| Sets the alpha level for the RGB stream. More... | |
 Public Member Functions inherited from IlvBitmapStreamer | |
| virtual void | callReadProgressCallback (IlUInt current, IlUInt max) |
| Calls the callback for read progression. More... | |
| virtual void | callWriteProgressCallback (IlUInt current, IlUInt max) |
| Calls the callback for write progression. More... | |
| virtual const char * | getName () const |
| Returns the internal name of the streamer. More... | |
| IlvQuantizer * | getQuantizer () const |
| Returns the quantizer used by this streamer. More... | |
| virtual IlvBitmapData * | read (std::istream &stream) |
| Reads from a stream. More... | |
| virtual IlvBitmapInformation * | readInfo (std::istream &stream) |
| Reads information from a stream. More... | |
| void | setQuantizer (IlvQuantizer *quantizer) |
| Sets the quantizer used (if needed) by this streamer. More... | |
| virtual void | setReadProgressCallback (IlvProgressCallback rpCallback, IlAny arg=0) |
| Sets the callback for read progression. More... | |
| virtual void | setWriteProgressCallback (IlvProgressCallback wpCallback, IlAny arg=0) |
| Sets the callback for write progression. More... | |
| virtual IlBoolean | write (IlvBitmapData *bitmapData, std::ostream &stream) |
Writes an IlvBitmapData to a stream. More... | |
| Public Member Functions inherited from IlvValueInterface | |
| virtual IlBoolean | applyValue (const IlvValue &value) |
| Apply an accessor. More... | |
| virtual IlBoolean | changeValue (const IlvValue &val) |
| Changes the value of an accessor. More... | |
| virtual IlBoolean | changeValues (const IlvValue *values, IlUShort count=0) |
| Changes several accessor values simultaneously. More... | |
| virtual void | getAccessors (const IlSymbol *const **names, const IlvValueTypeClass *const **types, IlUInt &count) const |
| Retrieves the list of available accessors of an object. More... | |
| virtual IlvValue & | queryValue (IlvValue &val) const |
| Retrieves an accessor value. More... | |
| virtual void | queryValues (IlvValue *values, IlUShort count) const |
| Retrieves multiple accessor values simultaneously. More... | |
Additional Inherited Members | |
| Static Public Member Functions inherited from IlvBitmapStreamer | |
| static IlvBitmapStreamer * | Get (const char *name) |
| Returns a streamer from its name. More... | |
| static IlvBitmapStreamer ** | GetRegisteredStreamers (IlUInt &count) |
| Returns the registered streamers. More... | |
| static IlvBitmap * | Read (IlvDisplay *display, std::istream &stream, const IlUChar *signature, IlUInt signatureLen) |
| Reads a bitmap using the registered streamers. More... | |
| static IlvBitmapData * | ReadBitmapData (std::istream &stream, const IlUChar *signature, IlUInt signatureLen) |
| Reads bitmap data using the registered streamers. More... | |
| static IlvBitmapInformation * | ReadInfo (std::istream &stream, const IlUChar *signature, IlUInt signatureLen) |
| Reads bitmap information using the registered streamers. More... | |
| static void | Register (IlvBitmapStreamer *streamer) |
| Registers the given streamer. More... | |
| static IlBoolean | UnRegister (IlvBitmapStreamer *streamer) |
| Unregisters the given streamer. More... | |
Bitmap streamer class.
Library: xviews or winviews or mviews (mutually exclusive)
This streamer provides methods to deal with a stream containing an RGB image. It supports reading from all RGB streams. This streamer can only read.
When reading images, callbacks will be called at each scanline.
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virtual |
Indicates that the instance can read from a stream.
IlTrue. Reimplemented from IlvBitmapStreamer.
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virtual |
Indicates that the instance can write to a stream.
IlTrue. Reimplemented from IlvBitmapStreamer.
Checks the signature of the input stream.
| data | The data containing the signature of the stream. |
| size | The size of the data containing the signature. |
IlTrue if the data contains an RGB signature. Implements IlvBitmapStreamer.
| IlUInt IlvRGBStreamer::getAlphaLevel | ( | ) | const |
Gets the alpha level of the RGB streamer.
| IlvBitmapData* IlvRGBStreamer::read | ( | IL_STDPREF istream & | stream | ) |
Reads an RGB image from a stream.
| stream | The stream to read from. |
IlvBitmapData. | void IlvRGBStreamer::setAlphaLevel | ( | IlUInt | level | ) |
Sets the alpha level for the RGB stream.
Alpha levels greater than the given argument are converted to a fully opaque value while alpha levels smaller than the given argument are converted to a fully transparent value.
| level | The alpha level. |
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