A table of horizontal scan-line segments - used for rasterising Paths.
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A table of horizontal scan-line segments - used for rasterising Paths.
- See also
- Path, Graphics
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
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clipLimits | only the region of the path that lies within this area will be added |
pathToAdd | the path to add to the table |
transform | a transform to apply to the path being added |
EdgeTable::EdgeTable |
( |
const Rectangle< int > & |
rectangleToAdd | ) |
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explicit |
Creates an edge table containing a rectangle.
EdgeTable::EdgeTable |
( |
const RectangleList< int > & |
rectanglesToAdd | ) |
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explicit |
Creates an edge table containing a rectangle list.
EdgeTable::EdgeTable |
( |
const RectangleList< float > & |
rectanglesToAdd | ) |
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explicit |
Creates an edge table containing a rectangle list.
EdgeTable::EdgeTable |
( |
const Rectangle< float > & |
rectangleToAdd | ) |
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explicit |
Creates an edge table containing a rectangle.
Creates a copy of another edge table.
EdgeTable::~EdgeTable |
( |
| ) |
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Copies from another edge table.
void EdgeTable::clipToRectangle |
( |
const Rectangle< int > & |
r | ) |
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void EdgeTable::excludeRectangle |
( |
const Rectangle< int > & |
r | ) |
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void EdgeTable::clipToEdgeTable |
( |
const EdgeTable & |
| ) |
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void EdgeTable::clipLineToMask |
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int |
x, |
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int |
y, |
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const uint8 * |
mask, |
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int |
maskStride, |
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int |
numPixels |
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) |
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bool EdgeTable::isEmpty |
( |
| ) |
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noexcept |
const Rectangle<int>& EdgeTable::getMaximumBounds |
( |
| ) |
const |
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noexcept |
void EdgeTable::translate |
( |
float |
dx, |
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int |
dy |
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) |
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noexcept |
void EdgeTable::multiplyLevels |
( |
float |
factor | ) |
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Scales all the alpha-levels in the table by the given multiplier.
void EdgeTable::optimiseTable |
( |
| ) |
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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.
template<class EdgeTableIterationCallback >
void EdgeTable::iterate |
( |
EdgeTableIterationCallback & |
iterationCallback | ) |
const |
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noexcept |
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
-
iterationCallback | this 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) |
References isPositiveAndBelow(), jassert, JUCE_LEAK_DETECTOR, and operator<().
The documentation for this class was generated from the following file: