openshot-audio  0.1.6
Classes | Public Member Functions | List of all members
EdgeTable Class Reference

#include <juce_EdgeTable.h>

Public Member Functions

 EdgeTable (const Rectangle< int > &clipLimits, const Path &pathToAdd, const AffineTransform &transform)
 
 EdgeTable (const Rectangle< int > &rectangleToAdd)
 
 EdgeTable (const RectangleList< int > &rectanglesToAdd)
 
 EdgeTable (const RectangleList< float > &rectanglesToAdd)
 
 EdgeTable (const Rectangle< float > &rectangleToAdd)
 
 EdgeTable (const EdgeTable &)
 
EdgeTableoperator= (const EdgeTable &)
 
 ~EdgeTable ()
 
void clipToRectangle (const Rectangle< int > &r)
 
void excludeRectangle (const Rectangle< int > &r)
 
void clipToEdgeTable (const EdgeTable &)
 
void clipLineToMask (int x, int y, const uint8 *mask, int maskStride, int numPixels)
 
bool isEmpty () noexcept
 
const Rectangle< int > & getMaximumBounds () const noexcept
 
void translate (float dx, int dy) noexcept
 
void multiplyLevels (float factor)
 
void optimiseTable ()
 
template<class EdgeTableIterationCallback >
void iterate (EdgeTableIterationCallback &iterationCallback) const noexcept
 

Detailed Description

A table of horizontal scan-line segments - used for rasterising Paths.

See also
Path, Graphics

Constructor & Destructor Documentation

◆ EdgeTable() [1/6]

EdgeTable::EdgeTable ( const Rectangle< int > &  clipLimits,
const Path pathToAdd,
const AffineTransform transform 
)

Creates an edge table containing a path.

A table is created with a fixed vertical range, and only sections of the path which lie within this range will be added to the table.

Parameters
clipLimitsonly the region of the path that lies within this area will be added
pathToAddthe path to add to the table
transforma transform to apply to the path being added

◆ EdgeTable() [2/6]

EdgeTable::EdgeTable ( const Rectangle< int > &  rectangleToAdd)
explicit

Creates an edge table containing a rectangle.

◆ EdgeTable() [3/6]

EdgeTable::EdgeTable ( const RectangleList< int > &  rectanglesToAdd)
explicit

Creates an edge table containing a rectangle list.

◆ EdgeTable() [4/6]

EdgeTable::EdgeTable ( const RectangleList< float > &  rectanglesToAdd)
explicit

Creates an edge table containing a rectangle list.

◆ EdgeTable() [5/6]

EdgeTable::EdgeTable ( const Rectangle< float > &  rectangleToAdd)
explicit

Creates an edge table containing a rectangle.

◆ EdgeTable() [6/6]

EdgeTable::EdgeTable ( const EdgeTable other)

Creates a copy of another edge table.

◆ ~EdgeTable()

EdgeTable::~EdgeTable ( )

Destructor.

Member Function Documentation

◆ clipLineToMask()

void EdgeTable::clipLineToMask ( int  x,
int  y,
const uint8 mask,
int  maskStride,
int  numPixels 
)

◆ clipToEdgeTable()

void EdgeTable::clipToEdgeTable ( const EdgeTable other)

◆ clipToRectangle()

void EdgeTable::clipToRectangle ( const Rectangle< int > &  r)

◆ excludeRectangle()

void EdgeTable::excludeRectangle ( const Rectangle< int > &  r)

◆ getMaximumBounds()

const Rectangle<int>& EdgeTable::getMaximumBounds ( ) const
inlinenoexcept

◆ isEmpty()

bool EdgeTable::isEmpty ( )
noexcept

◆ iterate()

template<class EdgeTableIterationCallback >
void EdgeTable::iterate ( EdgeTableIterationCallback &  iterationCallback) const
inlinenoexcept

Iterates the lines in the table, for rendering.

This function will iterate each line in the table, and call a user-defined class to render each pixel or continuous line of pixels that the table contains.

Parameters
iterationCallbackthis templated class must contain the following methods:
inline void setEdgeTableYPos (int y);
inline void handleEdgeTablePixel (int x, int alphaLevel) const;
inline void handleEdgeTablePixelFull (int x) const;
inline void handleEdgeTableLine (int x, int width, int alphaLevel) const;
inline void handleEdgeTableLineFull (int x, int width) const;
(these don't necessarily have to be 'const', but it might help it go faster)

◆ multiplyLevels()

void EdgeTable::multiplyLevels ( float  factor)

Scales all the alpha-levels in the table by the given multiplier.

◆ operator=()

EdgeTable & EdgeTable::operator= ( const EdgeTable other)

Copies from another edge table.

◆ optimiseTable()

void EdgeTable::optimiseTable ( )

Reduces the amount of space the table has allocated.

This will shrink the table down to use as little memory as possible - useful for read-only tables that get stored and re-used for rendering.

◆ translate()

void EdgeTable::translate ( float  dx,
int  dy 
)
noexcept

The documentation for this class was generated from the following files: