mirror of
https://github.com/Dadido3/go-typst.git
synced 2025-04-11 12:13:16 +00:00
David Vogel
c3876b340b
- Rename MarshalVariable to MarshalValue - Rename NewVariableEncoder to NewValueEncoder - Rename VariableEncoder to ValueEncoder - Rename VariableMarshaler to ValueMarshaler - Rename MarshalTypstVariable to MarshalTypstValue There are now wrappers which ensure compatibility with code that still uses some of the old functions/types. - Improve image_test.go by adding an assertion - Rename all occurrences of Variable to Value - Remove "TODO: Handle images..." as that's already working with the image wrapper - Update README.md
41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
// Copyright (c) 2024-2025 David Vogel
|
|
//
|
|
// This software is released under the MIT License.
|
|
// https://opensource.org/licenses/MIT
|
|
|
|
package typst
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"image"
|
|
"image/png"
|
|
"strconv"
|
|
)
|
|
|
|
// Image can be used to encode any image.Image into a typst image.
|
|
//
|
|
// For this, just wrap any image.Image with this type before passing it to MarshalValue or a ValueEncoder.
|
|
type Image struct{ image.Image }
|
|
|
|
func (i Image) MarshalTypstValue() ([]byte, error) {
|
|
var buffer bytes.Buffer
|
|
|
|
if err := png.Encode(&buffer, i); err != nil {
|
|
return nil, fmt.Errorf("failed to encode image as PNG: %w", err)
|
|
}
|
|
|
|
// TODO: Make image encoding more efficient: Use reader/writer, baseXX encoding
|
|
|
|
// TODO: Consider using raw pixel encoding instead of PNG
|
|
|
|
var buf bytes.Buffer
|
|
buf.WriteString("image.decode(bytes((") // TODO: Pass bytes directly to image once Typst 0.12.0 is not supported anymore
|
|
for _, b := range buffer.Bytes() {
|
|
buf.WriteString(strconv.FormatUint(uint64(b), 10) + ",")
|
|
}
|
|
buf.WriteString(")))")
|
|
|
|
return buf.Bytes(), nil
|
|
}
|