forked from pdfcpu/pdfcpu
/
textFieldLabel.go
88 lines (73 loc) · 1.99 KB
/
textFieldLabel.go
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/*
Copyright 2021 The pdfcpu Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package primitives
import (
"github.com/pdfcpu/pdfcpu/pkg/pdfcpu/model"
"github.com/pdfcpu/pdfcpu/pkg/pdfcpu/types"
"github.com/pkg/errors"
)
// TextFieldLabel represents a label for an input field.
type TextFieldLabel struct {
TextField
Width int
height float64
Gap int // horizontal space between textfield and label
Position string `json:"pos"` // relative to textfield
relPos types.RelPosition
td *model.TextDescriptor
}
func (tfl *TextFieldLabel) validate() error {
if tfl.Value == "" {
return errors.New("pdfcpu: missing label value")
}
if tfl.Width <= 0 {
// only for pos left align left or pos right align right!
return errors.Errorf("pdfcpu: invalid label width: %d", tfl.Width)
}
tfl.relPos = types.RelPosLeft
if tfl.Position != "" {
rp, err := types.ParseRelPosition(tfl.Position)
if err != nil {
return err
}
tfl.relPos = rp
}
if tfl.Font != nil {
tfl.Font.pdf = tfl.pdf
if err := tfl.Font.validate(); err != nil {
return err
}
}
if tfl.Border != nil {
tfl.Border.pdf = tfl.pdf
if err := tfl.Border.validate(); err != nil {
return err
}
}
if tfl.BackgroundColor != "" {
sc, err := tfl.pdf.parseColor(tfl.BackgroundColor)
if err != nil {
return err
}
tfl.BgCol = sc
}
tfl.HorAlign = types.AlignLeft
if tfl.Alignment != "" {
ha, err := types.ParseHorAlignment(tfl.Alignment)
if err != nil {
return err
}
tfl.HorAlign = ha
}
return nil
}