com.itextpdf.layout.element.List Maven / Gradle / Ivy
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see {
public static final String DEFAULT_LIST_SYMBOL = "- ";
protected DefaultAccessibilityProperties tagProperties;
/**
* Creates a List with the {@link #DEFAULT_LIST_SYMBOL} as a prefix.
*/
public List() {
super();
}
/**
* Creates a List with a custom numbering type.
*
* @param listNumberingType a prefix style
*/
public List(ListNumberingType listNumberingType) {
super();
setListSymbol(listNumberingType);
}
@Override
public T1 getDefaultProperty(int property) {
switch (property) {
case Property.LIST_SYMBOL:
return (T1) (Object) new Text(DEFAULT_LIST_SYMBOL);
case Property.LIST_SYMBOL_PRE_TEXT:
return (T1) (Object) "";
case Property.LIST_SYMBOL_POST_TEXT:
return (T1) (Object) ". ";
case Property.LIST_SYMBOL_POSITION:
return (T1) (Object) ListSymbolPosition.DEFAULT;
default:
return super.getDefaultProperty(property);
}
}
/**
* Adds a new {@link ListItem} to the bottom of the List.
*
* @param listItem a new list item
* @return this list.
*/
public List add(ListItem listItem) {
childElements.add(listItem);
return this;
}
/**
* Adds a new {@link ListItem} to the bottom of the List.
*
* @param text textual contents of the new list item
* @return this list.
*/
public List add(String text) {
return add(new ListItem(text));
}
/**
* Customizes the index of the first item in the list.
*
* @param start the custom index, as an int
* @return this list.
*/
public List setItemStartIndex(int start) {
setProperty(Property.LIST_START, start);
return this;
}
/**
* Sets the list symbol to be used. This will create an unordered list, i.e.
* all {@link ListItem list items} will be shown with the same prefix.
*
* @param symbol the textual symbol to be used for all items.
* @return this list.
*/
public List setListSymbol(String symbol) {
return setListSymbol(new Text(symbol));
}
/**
* Sets the list symbol to be used. This will create an unordered list, i.e.
* all {@link ListItem list items} will be shown with the same prefix.
*
* @param text the {@link Text} object to be used for all items.
* @return this list.
*/
public List setListSymbol(Text text) {
setProperty(Property.LIST_SYMBOL, text);
return this;
}
/**
* Sets the list symbol to be used. This will create an unordered list, i.e.
* all {@link ListItem list items} will be shown with the same prefix.
*
* @param image the {@link Image} object to be used for all items.
* @return this list.
*/
public List setListSymbol(Image image) {
setProperty(Property.LIST_SYMBOL, image);
return this;
}
/**
* Sets the list numbering type to be used. This will create an ordered list,
* i.e. every {@link ListItem} will have a unique prefix.
*
* @param listNumberingType the {@link ListNumberingType} that will generate appropriate prefixes for the {@link ListItem}s.
* @return this list.
*/
public List setListSymbol(ListNumberingType listNumberingType) {
// Do not draw any points after ZapfDingbats special number symbol
if (listNumberingType == ListNumberingType.ZAPF_DINGBATS_1 || listNumberingType == ListNumberingType.ZAPF_DINGBATS_2 ||
listNumberingType == ListNumberingType.ZAPF_DINGBATS_3 || listNumberingType == ListNumberingType.ZAPF_DINGBATS_4) {
setPostSymbolText(" ");
}
setProperty(Property.LIST_SYMBOL, listNumberingType);
return this;
}
/**
* A specialized enum containing alignment properties for list symbols.
* {@link ListSymbolAlignment#LEFT} means that the items will be aligned as follows:
* 9. Item 9
* 10. Item 10
*
* Whereas {@link ListSymbolAlignment#RIGHT} means the items will be aligned as follows:
* 9. Item 9
* 10. Item 10
*
* @param alignment the alignment of the list symbols
* @return this element
*/
public List setListSymbolAlignment(ListSymbolAlignment alignment) {
setProperty(Property.LIST_SYMBOL_ALIGNMENT, alignment);
return this;
}
/**
* Gets the indent offset of the {@link ListItem} symbols.
*
* @return the indent offset as a float.
*/
public Float getSymbolIndent() {
return this.getProperty(Property.LIST_SYMBOL_INDENT);
}
/**
* Sets the indent offset of the {@link ListItem} symbols.
*
* @param symbolIndent the new indent offset.
* @return this list.
*/
public List setSymbolIndent(float symbolIndent) {
setProperty(Property.LIST_SYMBOL_INDENT, symbolIndent);
return this;
}
/**
* Gets the piece of text that is added after the {@link ListItem} symbol.
*
* @return the post symbol text
*/
public String getPostSymbolText() {
return this.getProperty(Property.LIST_SYMBOL_POST_TEXT);
}
/**
* Sets a piece of text that should be added after the {@link ListItem} symbol.
*
* @param postSymbolText the post symbol text
*/
public void setPostSymbolText(String postSymbolText) {
setProperty(Property.LIST_SYMBOL_POST_TEXT, postSymbolText);
}
/**
* Gets the piece of text that is added before the {@link ListItem} symbol.
*
* @return the pre symbol text
*/
public String getPreSymbolText() {
return this.getProperty(Property.LIST_SYMBOL_PRE_TEXT);
}
/**
* Sets a piece of text that should be added before the {@link ListItem} symbol.
*
* @param preSymbolText the pre symbol text
*/
public void setPreSymbolText(String preSymbolText) {
setProperty(Property.LIST_SYMBOL_PRE_TEXT, preSymbolText);
}
@Override
public AccessibilityProperties getAccessibilityProperties() {
if (tagProperties == null) {
tagProperties = new DefaultAccessibilityProperties(StandardRoles.L);
}
return tagProperties;
}
@Override
protected IRenderer makeNewRenderer() {
return new ListRenderer(this);
}
}