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* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import { Injectable } from '@angular/core';
export type SettingValue = number | 'default';
/**
* Service to control various typography settings. Currently the following are supported
* - line-height
* - letter-spacing
* - word-spacing
* - paragraph-spacing
*/
@Injectable({ providedIn: 'root' })
export class GefaTypographySettingsService {
/**
* Set a custom line-height relative to the font-size of the rendered text
*/
set lineHeight(value: SettingValue) {
this.updateProperty('--gc-setting-typography-line-height', value, '');
this._lineSpacing = value;
}
get lineHeight(): SettingValue {
return this._lineSpacing;
}
/**
* Set a letter spacing relative to the font-size of the rendered text
*/
set letterSpacing(value: SettingValue) {
this.updateProperty('--gc-setting-typography-letter-spacing', value);
this._letterSpacing = value;
}
get letterSpacing(): SettingValue {
return this._letterSpacing;
}
/**
* set a word spacing relative to the font-size of the rendered text
*/
set wordSpacing(value: SettingValue) {
this.updateProperty('--gc-setting-typography-word-spacing', value);
this._wordSpacing = value;
}
get wordSpacing() {
return this._wordSpacing;
}
/**
* set a paragraph spacing relative to the font-size of the rendered text
*/
set paragraphSpacing(value: SettingValue) {
this.updateProperty('--gc-setting-typography-paragraph-spacing', value);
this._paragraphSpacing = value;
}
get paragraphSpacing() {
return this._paragraphSpacing;
}
private _lineSpacing: SettingValue = 'default';
private _letterSpacing: SettingValue = 'default';
private _wordSpacing: SettingValue = 'default';
private _paragraphSpacing: SettingValue = 'default';
private updateProperty(name: string, value: SettingValue, units = 'em') {
if (value === 'default') {
document.body.style.removeProperty(name);
} else {
document.body.style.setProperty(name, `${value.toString()}${units}`);
}
}
}
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