rui_orig/propertyGet.go

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2021-09-07 17:36:50 +03:00
package rui
import (
"strconv"
"strings"
)
func stringProperty(properties Properties, tag string, session Session) (string, bool) {
if value := properties.getRaw(tag); value != nil {
if text, ok := value.(string); ok {
return session.resolveConstants(text)
}
}
return "", false
}
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func imageProperty(properties Properties, tag string, session Session) (string, bool) {
if value := properties.getRaw(tag); value != nil {
if text, ok := value.(string); ok {
if text != "" && text[0] == '@' {
if image, ok := session.ImageConstant(text[1:]); ok {
return image, true
} else {
return "", false
}
}
return text, true
}
}
return "", false
}
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func valueToSizeUnit(value interface{}, session Session) (SizeUnit, bool) {
if value != nil {
switch value := value.(type) {
case SizeUnit:
return value, true
case string:
if text, ok := session.resolveConstants(value); ok {
return StringToSizeUnit(text)
}
}
}
return AutoSize(), false
}
func sizeProperty(properties Properties, tag string, session Session) (SizeUnit, bool) {
return valueToSizeUnit(properties.getRaw(tag), session)
}
func angleProperty(properties Properties, tag string, session Session) (AngleUnit, bool) {
if value := properties.getRaw(tag); value != nil {
switch value := value.(type) {
case AngleUnit:
return value, true
case string:
if text, ok := session.resolveConstants(value); ok {
return StringToAngleUnit(text)
}
}
}
return AngleUnit{Type: 0, Value: 0}, false
}
func valueToColor(value interface{}, session Session) (Color, bool) {
if value != nil {
switch value := value.(type) {
case Color:
return value, true
case string:
if len(value) > 1 && value[0] == '@' {
return session.Color(value[1:])
}
return StringToColor(value)
}
}
return Color(0), false
}
func colorProperty(properties Properties, tag string, session Session) (Color, bool) {
return valueToColor(properties.getRaw(tag), session)
}
func valueToEnum(value interface{}, tag string, session Session, defaultValue int) (int, bool) {
if value != nil {
values := enumProperties[tag].values
switch value := value.(type) {
case int:
if value >= 0 && value < len(values) {
return value, true
}
case string:
if text, ok := session.resolveConstants(value); ok {
if tag == Orientation {
switch strings.ToLower(text) {
case "vertical":
value = "up-down"
case "horizontal":
value = "left-to-right"
}
}
if result, ok := enumStringToInt(text, values, true); ok {
return result, true
}
}
}
}
return defaultValue, false
}
func enumStringToInt(value string, enumValues []string, logError bool) (int, bool) {
value = strings.Trim(value, " \t\n\r")
for n, val := range enumValues {
if val == value {
return n, true
}
}
if n, err := strconv.Atoi(value); err == nil {
if n >= 0 && n < len(enumValues) {
return n, true
}
if logError {
ErrorLogF(`Out of bounds: value index = %d, valid values = [%v]`, n, enumValues)
}
return 0, false
}
value = strings.ToLower(value)
for n, val := range enumValues {
if val == value {
return n, true
}
}
if logError {
ErrorLogF(`Unknown "%s" value. Valid values = [%v]`, value, enumValues)
}
return 0, false
}
func enumProperty(properties Properties, tag string, session Session, defaultValue int) (int, bool) {
return valueToEnum(properties.getRaw(tag), tag, session, defaultValue)
}
func valueToBool(value interface{}, session Session) (bool, bool) {
if value != nil {
switch value := value.(type) {
case bool:
return value, true
case string:
if text, ok := session.resolveConstants(value); ok {
switch strings.ToLower(text) {
case "true", "yes", "on", "1":
return true, true
case "false", "no", "off", "0":
return false, true
default:
ErrorLog(`The error of converting of "` + text + `" to bool`)
}
}
}
}
return false, false
}
func boolProperty(properties Properties, tag string, session Session) (bool, bool) {
return valueToBool(properties.getRaw(tag), session)
}
func valueToInt(value interface{}, session Session, defaultValue int) (int, bool) {
if value != nil {
switch value := value.(type) {
case string:
if text, ok := session.resolveConstants(value); ok {
n, err := strconv.Atoi(strings.Trim(text, " \t"))
if err == nil {
return n, true
}
ErrorLog(err.Error())
} else {
n, err := strconv.Atoi(strings.Trim(value, " \t"))
if err == nil {
return n, true
}
ErrorLog(err.Error())
}
default:
return isInt(value)
}
}
return defaultValue, false
}
func intProperty(properties Properties, tag string, session Session, defaultValue int) (int, bool) {
return valueToInt(properties.getRaw(tag), session, defaultValue)
}
func valueToFloat(value interface{}, session Session, defaultValue float64) (float64, bool) {
if value != nil {
switch value := value.(type) {
case float64:
return value, true
case string:
if text, ok := session.resolveConstants(value); ok {
f, err := strconv.ParseFloat(text, 64)
if err == nil {
return f, true
}
ErrorLog(err.Error())
}
}
}
return defaultValue, false
}
func floatProperty(properties Properties, tag string, session Session, defaultValue float64) (float64, bool) {
return valueToFloat(properties.getRaw(tag), session, defaultValue)
}
func valueToRange(value interface{}, session Session) (Range, bool) {
if value != nil {
switch value := value.(type) {
case Range:
return value, true
case int:
return Range{First: value, Last: value}, true
case string:
if text, ok := session.resolveConstants(value); ok {
var result Range
if result.setValue(text) {
return result, true
}
}
}
}
return Range{}, false
}
func rangeProperty(properties Properties, tag string, session Session) (Range, bool) {
return valueToRange(properties.getRaw(tag), session)
}