Documentation
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Overview ¶
The eglyr subpackage defines a Renderer struct that behaves like the main etxt.Renderer, but overriding a few methods to operate with glyph indices instead of strings.
This subpackage is only relevant if you are doing text shaping on your own.
This subpackage also demonstrates how to use type embedding and the original etxt renderer methods in order to create a more specialized renderer (in this case, one that improves support for working with glyph indices).
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Renderer ¶
type Renderer struct {
// contains filtered or unexported fields
}
A renderer just like etxt.Renderer, but with a few methods overridden and adapted to operate with GlyphIndex slices instead of strings.
Despite the documentation missing the inherited methods, notice that all the property setters and getters available for etxt.Renderer are also available for this renderer.
func NewRenderer ¶
func NewRenderer(rasterizer emask.Rasterizer) *Renderer
Creates a new Renderer with the given glyph mask rasterizer. For the default rasterizer, see NewStdRenderer() instead.
This method is the eglyr equivalent to etxt.NewRenderer().
func NewStdRenderer ¶
func NewStdRenderer() *Renderer
Creates a new glyph-specialized Renderer with the default vector rasterizer.
This method is the eglyr equivalent to etxt.NewStdRenderer().
func (*Renderer) Draw ¶
func (self *Renderer) Draw(glyphIndices []GlyphIndex, x, y int) fixed.Point26_6
Draws the given glyphs with the current configuration. Glyph indices outside the [0, font.NumGlyphs()) range will cause the renderer to panic.
This method is the eglyr equivalent to etxt.Renderer.Draw().
func (*Renderer) DrawFract ¶
Same as Renderer.Draw(), but accepting fractional pixel coordinates.
This method is the eglyr equivalent to etxt.Renderer.DrawFract().
func (*Renderer) SelectionRect ¶
func (self *Renderer) SelectionRect(glyphIndices []GlyphIndex) etxt.RectSize
An alias for etxt.Renderer.SelectionRectGlyphs().
Source Files