README
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This is a library for Go that draws text onto an image.Image. The text uses the underlying OS's text rendering system, so system fonts can be used. It is designed for rendering to the screen, so text is antialiased, etc.
It started as a more general-purpose vector graphics library, but technical restirctions and a general misunderstanding of the problem of vector graphics and device specificity made this unreasonable, so the scope was limited to just text strings. I plan on making a better vector graphics subsystem later.
It's sloppy :/
REQUIREMENTS
- Windows: Windows XP or newer (same as Go); uses GDI
- Unix (not Mac OS X): cairo (>=1.10) and pango (>=1.30)
- Mac OS X: Mac OS X 10.6 or newer; uses Core Graphics and Core Text directly
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Line ¶
Line draws the given line of text at the given position on the current Image in the given Font. The color is specified as an RGB value with no alpha information. TODO pango seems to do this vertically offset?
Types ¶
type Font ¶
type Font interface {
// Close frees resources allocated to the Font.
Close()
// contains filtered or unexported methods
}
Font represents a font. A Font is created by passing a FontSpec to NewFont().
type FontSpec ¶
type FontSpec struct {
Family string
Size uint // in points
Bold bool // TODO can it be a factor? if not, what constitutes bold?
Italic bool // italic == oblique if current backend differentiates
Vertical bool // strictly gravity east/rotation 90 degrees clockwise? TODO
Monospace bool
}
FontSpec encodes information about a font.
Source Files