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133 lines
2.7 KiB
133 lines
2.7 KiB
package bimg
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/*
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#cgo pkg-config: vips
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#include "vips/vips.h"
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*/
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import "C"
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const (
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QUALITY = 80
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MAX_SIZE = 16383
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)
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type Gravity int
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const (
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CENTRE Gravity = iota
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NORTH
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EAST
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SOUTH
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WEST
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)
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type Interpolator int
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const (
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BICUBIC Interpolator = iota
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BILINEAR
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NOHALO
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)
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var interpolations = map[Interpolator]string{
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BICUBIC: "bicubic",
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BILINEAR: "bilinear",
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NOHALO: "nohalo",
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}
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func (i Interpolator) String() string {
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return interpolations[i]
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}
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type Angle int
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const (
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D0 Angle = 0
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D90 Angle = 90
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D180 Angle = 180
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D270 Angle = 270
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)
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type Direction int
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const (
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HORIZONTAL Direction = C.VIPS_DIRECTION_HORIZONTAL
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VERTICAL Direction = C.VIPS_DIRECTION_VERTICAL
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)
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// Image interpretation type
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// See: http://www.vips.ecs.soton.ac.uk/supported/current/doc/html/libvips/VipsImage.html#VipsInterpretation
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type Interpretation int
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const (
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INTERPRETATION_ERROR Interpretation = C.VIPS_INTERPRETATION_ERROR
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INTERPRETATION_MULTIBAND Interpretation = C.VIPS_INTERPRETATION_MULTIBAND
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INTERPRETATION_B_W Interpretation = C.VIPS_INTERPRETATION_B_W
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INTERPRETATION_CMYK Interpretation = C.VIPS_INTERPRETATION_CMYK
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INTERPRETATION_RGB Interpretation = C.VIPS_INTERPRETATION_RGB
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INTERPRETATION_sRGB Interpretation = C.VIPS_INTERPRETATION_sRGB
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INTERPRETATION_RGB16 Interpretation = C.VIPS_INTERPRETATION_RGB16
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INTERPRETATION_GREY16 Interpretation = C.VIPS_INTERPRETATION_GREY16
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INTERPRETATION_scRGB Interpretation = C.VIPS_INTERPRETATION_scRGB
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INTERPRETATION_LAB Interpretation = C.VIPS_INTERPRETATION_LAB
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INTERPRETATION_XYZ Interpretation = C.VIPS_INTERPRETATION_XYZ
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)
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const WATERMARK_FONT = "sans 10"
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// Color represents a traditional RGB color scheme
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type Color struct {
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R, G, B uint8
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}
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// Shortcut to black RGB color representation
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var ColorBlack = Color{0, 0, 0}
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// Text-based watermark configuration
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type Watermark struct {
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Width int
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DPI int
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Margin int
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Opacity float32
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NoReplicate bool
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Text string
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Font string
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Background Color
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}
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type GaussianBlur struct {
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Sigma float64
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MinAmpl float64
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}
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// Supported image transformation options
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type Options struct {
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Height int
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Width int
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AreaHeight int
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AreaWidth int
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Top int
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Left int
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Extend int
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Quality int
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Compression int
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Zoom int
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Crop bool
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Enlarge bool
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Embed bool
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Flip bool
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Flop bool
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Force bool
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NoAutoRotate bool
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NoProfile bool
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Interlace bool
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Rotate Angle
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Background Color
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Gravity Gravity
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Watermark Watermark
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Type ImageType
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Interpolator Interpolator
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Interpretation Interpretation
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GaussianBlur GaussianBlur
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}
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