Rogue Wave Views Foundation Package API Reference Guide |
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Blend filter. More...
#include <ilviews/bitmaps/filters/blend.h>
Public Types |
Public Member Functions | |
IlvBlendFilter (BlendMode mode=Normal) | |
Constructor. More... | |
~IlvBlendFilter () | |
Destructor. More... | |
IlvBitmapData * | apply (IlUInt count=0, const IlvBitmapData **datas=0) |
Applies the blending to the given images. | |
BlendMode | getMode () const |
Returns the blending mode. More... | |
void | setMode (BlendMode mode) |
Sets the mode used for blending the images. More... | |
Public Member Functions inherited from IlvBitmapFilter | |
IlvBitmapFilter () | |
Constructor. More... | |
virtual | ~IlvBitmapFilter () |
Destructor. More... | |
IlvBitmapData * | applyUnary (const IlvBitmapData *data) |
Convenience method for unary filters. More... | |
virtual const char * | getClassName () const |
Returns the class name of the filter. More... | |
IlUInt | getHeight () const |
Returns the height of the filter effect region. More... | |
const char *const * | getInputs (IlUInt &count) const |
Returns the name of the input bitmap data. More... | |
const char * | getName () const |
Returns the name of the filter. More... | |
IlUInt | getRefCount () const |
Returns the reference count for this instance. | |
const char * | getResult () const |
Returns the name of the result bitmap data. More... | |
IlUInt | getWidth () const |
Returns the width of the filter effect region. More... | |
IlInt | getX () const |
Returns the left coordinate of the filter effect region. More... | |
IlInt | getY () const |
Returns the top coordinate of the filter effect region. More... | |
void | lock () |
Locks the current instance. | |
void | setHeight (IlUInt height) |
Sets the height of the filter effect region. More... | |
void | setInputs (IlUInt count, const char *const *name) |
Sets the input names of the filter. More... | |
void | setName (const char *id) |
Sets the name of the filter. More... | |
void | setResult (const char *name) |
Sets the result name of the filter. More... | |
void | setWidth (IlUInt width) |
Sets the width of the filter effect region. More... | |
void | setX (IlInt x) |
Sets the left coordinate of the filter effect region. More... | |
void | setY (IlInt y) |
Sets the top coordinate of the filter effect region. More... | |
void | unLock () |
Unlocks the current instance. When the reference count is 0 , the instance is deleted. | |
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 IlvBitmapFilter | |
static IlvBitmapFilter * | Create (const char *classname, IlBoolean forceLoad=IlTrue) |
This static method creates an instance of a bitmap filter of given classname. If the filter class is not registered and forceLoad is IlTrue , an attempt to load a dynamic module for this filter is made. More... | |
static const char ** | GetRegisteredFilters (IlUInt &num) |
This static method returns an array of registered filter class names. More... | |
Blend filter.
Library: ilvbmpflt
This bitmap filter lets you blend two images together using predefined modes.
IlvRGBBitmapData
, IlvBitmapFilter
BlendMode
This enumeration defines the possible values for the blend mode. For all blend modes, the resulting opacity is computed as follows: qr = 1 - (1 - qa) * (1 - qb)
For the blending formulas below, the following apply:
cr = Result color (RGB) - premultiplied
qa Opacity value at a given pixel for image A
qb Opacity value at a given pixel for image B
ca = Color (RGB) at a given pixel for image A - premultiplied
cb = Color (RGB) at a given pixel for image B - premultiplied
Constructor.
Initializes a new instance of the class IlvBlendFilter
.
IlvBlendFilter::~IlvBlendFilter | ( | ) |
Destructor.
The destructor releases all the memory used by the instance.
BlendMode IlvBlendFilter::getMode | ( | ) | const |
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