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rui/columnSeparator.go

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package rui
import (
"fmt"
"strings"
)
// ColumnSeparatorProperty is the interface of a view separator data
type ColumnSeparatorProperty interface {
Properties
ruiStringer
fmt.Stringer
ViewBorder(session Session) ViewBorder
cssValue(session Session) string
}
type columnSeparatorProperty struct {
propertyList
}
func newColumnSeparatorProperty(value interface{}) ColumnSeparatorProperty {
if value == nil {
separator := new(columnSeparatorProperty)
separator.properties = map[string]interface{}{}
return separator
}
switch value := value.(type) {
case ColumnSeparatorProperty:
return value
case DataObject:
separator := new(columnSeparatorProperty)
separator.properties = map[string]interface{}{}
for _, tag := range []string{Style, Width, ColorTag} {
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if val, ok := value.PropertyValue(tag); ok && val != "" {
separator.set(tag, value)
}
}
return separator
case ViewBorder:
separator := new(columnSeparatorProperty)
separator.properties = map[string]interface{}{
Style: value.Style,
Width: value.Width,
ColorTag: value.Color,
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}
return separator
}
invalidPropertyValue(Border, value)
return nil
}
// NewColumnSeparator creates the new ColumnSeparatorProperty
func NewColumnSeparator(params Params) ColumnSeparatorProperty {
separator := new(columnSeparatorProperty)
separator.properties = map[string]interface{}{}
if params != nil {
for _, tag := range []string{Style, Width, ColorTag} {
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if value, ok := params[tag]; ok && value != nil {
separator.Set(tag, value)
}
}
}
return separator
}
func (separator *columnSeparatorProperty) normalizeTag(tag string) string {
tag = strings.ToLower(tag)
switch tag {
case ColumnSeparatorStyle, "separator-style":
return Style
case ColumnSeparatorWidth, "separator-width":
return Width
case ColumnSeparatorColor, "separator-color":
return ColorTag
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}
return tag
}
func (separator *columnSeparatorProperty) ruiString(writer ruiWriter) {
writer.startObject("_")
for _, tag := range []string{Style, Width, ColorTag} {
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if value, ok := separator.properties[tag]; ok {
writer.writeProperty(Style, value)
}
}
writer.endObject()
}
func (separator *columnSeparatorProperty) String() string {
writer := newRUIWriter()
separator.ruiString(writer)
return writer.finish()
}
func (separator *columnSeparatorProperty) Remove(tag string) {
switch tag = separator.normalizeTag(tag); tag {
case Style, Width, ColorTag:
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delete(separator.properties, tag)
default:
ErrorLogF(`"%s" property is not compatible with the ColumnSeparatorProperty`, tag)
}
}
func (separator *columnSeparatorProperty) Set(tag string, value interface{}) bool {
tag = separator.normalizeTag(tag)
if value == nil {
separator.remove(tag)
return true
}
switch tag {
case Style:
return separator.setEnumProperty(Style, value, enumProperties[BorderStyle].values)
case Width:
return separator.setSizeProperty(Width, value)
case ColorTag:
return separator.setColorProperty(ColorTag, value)
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}
ErrorLogF(`"%s" property is not compatible with the ColumnSeparatorProperty`, tag)
return false
}
func (separator *columnSeparatorProperty) Get(tag string) interface{} {
tag = separator.normalizeTag(tag)
if result, ok := separator.properties[tag]; ok {
return result
}
return nil
}
func (separator *columnSeparatorProperty) ViewBorder(session Session) ViewBorder {
style, _ := valueToEnum(separator.getRaw(Style), BorderStyle, session, NoneLine)
width, _ := sizeProperty(separator, Width, session)
color, _ := colorProperty(separator, ColorTag, session)
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return ViewBorder{
Style: style,
Width: width,
Color: color,
}
}
func (separator *columnSeparatorProperty) cssValue(session Session) string {
value := separator.ViewBorder(session)
buffer := allocStringBuilder()
defer freeStringBuilder(buffer)
if value.Width.Type != Auto && value.Width.Type != SizeInFraction && value.Width.Value > 0 {
buffer.WriteString(value.Width.cssString(""))
}
styles := enumProperties[BorderStyle].cssValues
if value.Style > 0 && value.Style < len(styles) {
if buffer.Len() > 0 {
buffer.WriteRune(' ')
}
buffer.WriteString(styles[value.Style])
}
if value.Color != 0 {
if buffer.Len() > 0 {
buffer.WriteRune(' ')
}
buffer.WriteString(value.Color.cssString())
}
return buffer.String()
}