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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2019 iText Group NV
Authors: Bruno Lowagie, Paulo Soares, et al.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
as published by the Free Software Foundation with the addition of the
following permission added to Section 15 as permitted in Section 7(a):
FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
OF THIRD PARTY RIGHTS
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 http://www.gnu.org/licenses or write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA, 02110-1301 USA, or download the license from the following URL:
http://itextpdf.com/terms-of-use/
The interactive user interfaces in modified source and object code versions
of this program must display Appropriate Legal Notices, as required under
Section 5 of the GNU Affero General Public License.
In accordance with Section 7(b) of the GNU Affero General Public License,
a covered work must retain the producer line in every PDF that is created
or manipulated using iText.
You can be released from the requirements of the license by purchasing
a commercial license. Buying such a license is mandatory as soon as you
develop commercial activities involving the iText software without
disclosing the source code of your own applications.
These activities include: offering paid services to customers as an ASP,
serving PDFs on the fly in a web application, shipping iText with a closed
source product.
For more information, please contact iText Software Corp. at this
address: [email protected]
*/
package com.itextpdf.layout.element;
import com.itextpdf.layout.tagging.IAccessibleElement;
import com.itextpdf.layout.property.OverflowPropertyValue;
import com.itextpdf.layout.property.Property;
import com.itextpdf.layout.property.UnitValue;
import com.itextpdf.layout.property.VerticalAlignment;
/**
* A {@link BlockElement} will try to take up as much horizontal space as
* available to it on the canvas or page. The concept is comparable to the block
* element in HTML. Also like in HTML, the visual representation of the object
* can be delimited by padding, a border, and/or a margin.
*
* @param the type of the implementation
*/
public abstract class BlockElement extends AbstractElement implements IAccessibleElement, IBlockElement {
/**
* Creates a BlockElement.
*/
protected BlockElement() {
}
@Override
public T1 getDefaultProperty(int property) {
switch (property) {
case Property.OVERFLOW:
case Property.OVERFLOW_X:
case Property.OVERFLOW_Y:
return (T1) (Object) OverflowPropertyValue.FIT;
default:
return super.getDefaultProperty(property);
}
}
/**
* Gets the current left margin width of the element.
*
* @return the left margin width, as a {@link UnitValue} object
*/
public UnitValue getMarginLeft() {
return this.getProperty(Property.MARGIN_LEFT);
}
/**
* Sets the left margin width of the element.
*
* @param value the new left margin width
* @return this element
*/
public T setMarginLeft(float value) {
UnitValue marginUV = UnitValue.createPointValue(value);
setProperty(Property.MARGIN_LEFT, marginUV);
return (T) (Object) this;
}
/**
* Gets the current right margin width of the element.
*
* @return the right margin width, as a {@link UnitValue} object
*/
public UnitValue getMarginRight() {
return this.getProperty(Property.MARGIN_RIGHT);
}
/**
* Sets the right margin width of the element.
*
* @param value the new right margin width
* @return this element
*/
public T setMarginRight(float value) {
UnitValue marginUV = UnitValue.createPointValue(value);
setProperty(Property.MARGIN_RIGHT, marginUV);
return (T) (Object) this;
}
/**
* Gets the current top margin width of the element.
*
* @return the top margin width, as a {@link UnitValue} object
*/
public UnitValue getMarginTop() {
return this.getProperty(Property.MARGIN_TOP);
}
/**
* Sets the top margin width of the element.
*
* @param value the new top margin width
* @return this element
*/
public T setMarginTop(float value) {
UnitValue marginUV = UnitValue.createPointValue(value);
setProperty(Property.MARGIN_TOP, marginUV);
return (T) (Object) this;
}
/**
* Gets the current bottom margin width of the element.
*
* @return the bottom margin width, as a {@link UnitValue} object
*/
public UnitValue getMarginBottom() {
return this.getProperty(Property.MARGIN_BOTTOM);
}
/**
* Sets the bottom margin width of the element.
*
* @param value the new bottom margin width
* @return this element
*/
public T setMarginBottom(float value) {
UnitValue marginUV = UnitValue.createPointValue(value);
setProperty(Property.MARGIN_BOTTOM, marginUV);
return (T) (Object) this;
}
/**
* Sets all margins around the element to the same width.
*
* @param commonMargin the new margin width
* @return this element
*/
public T setMargin(float commonMargin) {
return setMargins(commonMargin, commonMargin, commonMargin, commonMargin);
}
/**
* Sets the margins around the element to a series of new widths.
*
* @param marginTop the new margin top width
* @param marginRight the new margin right width
* @param marginBottom the new margin bottom width
* @param marginLeft the new margin left width
* @return this element
*/
public T setMargins(float marginTop, float marginRight, float marginBottom, float marginLeft) {
setMarginTop(marginTop);
setMarginRight(marginRight);
setMarginBottom(marginBottom);
setMarginLeft(marginLeft);
return (T) (Object) this;
}
/**
* Gets the current left padding width of the element.
*
* @return the left padding width, as a {@link UnitValue} object
*/
public UnitValue getPaddingLeft() {
return this.getProperty(Property.PADDING_LEFT);
}
/**
* Sets the left padding width of the element.
*
* @param value the new left padding width
* @return this element
*/
public T setPaddingLeft(float value) {
UnitValue paddingUV = UnitValue.createPointValue(value);
setProperty(Property.PADDING_LEFT, paddingUV);
return (T) (Object) this;
}
/**
* Gets the current right padding width of the element.
*
* @return the right padding width, as a {@link UnitValue} object
*/
public UnitValue getPaddingRight() {
return this.getProperty(Property.PADDING_RIGHT);
}
/**
* Sets the right padding width of the element.
*
* @param value the new right padding width
* @return this element
*/
public T setPaddingRight(float value) {
UnitValue paddingUV = UnitValue.createPointValue(value);
setProperty(Property.PADDING_RIGHT, paddingUV);
return (T) (Object) this;
}
/**
* Gets the current top padding width of the element.
*
* @return the top padding width, as a {@link UnitValue} object
*/
public UnitValue getPaddingTop() {
return this.getProperty(Property.PADDING_TOP);
}
/**
* Sets the top padding width of the element.
*
* @param value the new top padding width
* @return this element
*/
public T setPaddingTop(float value) {
UnitValue paddingUV = UnitValue.createPointValue(value);
setProperty(Property.PADDING_TOP, paddingUV);
return (T) (Object) this;
}
/**
* Gets the current bottom padding width of the element.
*
* @return the bottom padding width, as a {@link UnitValue} object
*/
public UnitValue getPaddingBottom() {
return this.getProperty(Property.PADDING_BOTTOM);
}
/**
* Sets the bottom padding width of the element.
*
* @param value the new bottom padding width
* @return this element
*/
public T setPaddingBottom(float value) {
UnitValue paddingUV = UnitValue.createPointValue(value);
setProperty(Property.PADDING_BOTTOM, paddingUV);
return (T) (Object) this;
}
/**
* Sets all paddings around the element to the same width.
*
* @param commonPadding the new padding width
* @return this element
*/
public T setPadding(float commonPadding) {
return setPaddings(commonPadding, commonPadding, commonPadding, commonPadding);
}
/**
* Sets the paddings around the element to a series of new widths.
*
* @param paddingTop the new padding top width
* @param paddingRight the new padding right width
* @param paddingBottom the new padding bottom width
* @param paddingLeft the new padding left width
* @return this element
*/
public T setPaddings(float paddingTop, float paddingRight, float paddingBottom, float paddingLeft) {
setPaddingTop(paddingTop);
setPaddingRight(paddingRight);
setPaddingBottom(paddingBottom);
setPaddingLeft(paddingLeft);
return (T) (Object) this;
}
/**
* Sets the vertical alignment of the element.
*
* @param verticalAlignment the vertical alignment setting
* @return this element
*/
public T setVerticalAlignment(VerticalAlignment verticalAlignment) {
setProperty(Property.VERTICAL_ALIGNMENT, verticalAlignment);
return (T) (Object) this;
}
/**
* Sets a ratio which determines in which proportion will word spacing and character spacing
* be applied when horizontal alignment is justified.
*
* @param ratio the ratio coefficient. It must be between 0 and 1, inclusive.
* It means that ratio part of the free space will
* be compensated by word spacing, and 1-ratio part of the free space will
* be compensated by character spacing.
* If ratio is 1, additional character spacing will not be applied.
* If ratio is 0, additional word spacing will not be applied.
*/
public T setSpacingRatio(float ratio) {
setProperty(Property.SPACING_RATIO, ratio);
return (T) (Object) this;
}
/**
* Returns whether the {@link BlockElement} should be kept together as much
* as possible.
*
* @return the current value of the {@link Property#KEEP_TOGETHER} property
*/
public Boolean isKeepTogether() {
return this.getProperty(Property.KEEP_TOGETHER);
}
/**
* Sets whether the {@link BlockElement} should be kept together as much
* as possible.
*
* @param keepTogether the new value of the {@link Property#KEEP_TOGETHER} property
* @return this element
*/
public T setKeepTogether(boolean keepTogether) {
setProperty(Property.KEEP_TOGETHER, keepTogether);
return (T) (Object) this;
}
/**
* Returns whether the end of this {@link BlockElement} and the start of the next sibling of this element
* should be placed in the same area.
*
* @return the current value of the {@link Property#KEEP_WITH_NEXT} property
*/
public Boolean isKeepWithNext() {
return this.getProperty(Property.KEEP_WITH_NEXT);
}
/**
* Sets whether the end of this {@link BlockElement} and the start of the next sibling of this element
* should be placed in the same area.
* Note that this will only work for high-level elements, i.e. elements added to the {@link com.itextpdf.layout.RootElement}.
*
* @param keepWithNext the new value of the {@link Property#KEEP_WITH_NEXT} property
* @return this element
*/
public T setKeepWithNext(boolean keepWithNext) {
setProperty(Property.KEEP_WITH_NEXT, keepWithNext);
return (T) (Object) this;
}
/**
* Sets the rotation radAngle.
*
* @param angleInRadians the new rotation radAngle, as a float, in radians
* @return this element
*/
public T setRotationAngle(float angleInRadians) {
setProperty(Property.ROTATION_ANGLE, angleInRadians);
return (T) (Object) this;
}
/**
* Sets the rotation angle.
*
* @param angleInRadians the new rotation angle, as a double, in radians
* @return this element
*/
public T setRotationAngle(double angleInRadians) {
setProperty(Property.ROTATION_ANGLE, (float) angleInRadians);
return (T) (Object) this;
}
/**
* Sets the width property of a block element, measured in points.
*
* @param width a value measured in points.
* @return this Element.
*/
public T setWidth(float width) {
setProperty(Property.WIDTH, UnitValue.createPointValue(width));
return (T) (Object) this;
}
/**
* Sets the width property of a block element with a {@link UnitValue}.
*
* @param width a {@link UnitValue} object
* @return this Element.
*/
public T setWidth(UnitValue width) {
setProperty(Property.WIDTH, width);
return (T) (Object) this;
}
/**
* Gets the width property of a block element.
*
* @return the width of the element, with a value and a measurement unit.
* @see UnitValue
*/
public UnitValue getWidth() {
return (UnitValue) this.getProperty(Property.WIDTH);
}
/**
* Sets the height property of a block element with a {@link UnitValue}.
*
* @param height a {@link UnitValue} object
* @return this Element.
*/
public T setHeight(UnitValue height) {
setProperty(Property.HEIGHT, height);
return (T) (Object) this;
}
/**
* Sets the height property a block element as a point-value.
*
* @param height a floating point value for the new height
* @return the block element itself.
*/
public T setHeight(float height) {
UnitValue heightAsUV = UnitValue.createPointValue(height);
setProperty(Property.HEIGHT, heightAsUV);
return (T) (Object) this;
}
/**
* Gets the height property of a block element.
*
* @return the height of the element, as a floating point value. Null if the property is not present
*/
public UnitValue getHeight() {
return (UnitValue) this.getProperty(Property.HEIGHT);
}
/**
* Sets the max-height of a block element as point-unit value.
*
* @param maxHeight a floating point value for the new max-height
* @return the block element itself
*/
public T setMaxHeight(float maxHeight) {
UnitValue maxHeightAsUV = UnitValue.createPointValue(maxHeight);
setProperty(Property.MAX_HEIGHT, maxHeightAsUV);
return (T) (Object) this;
}
/**
* Sets the max-height property of a block element with a {@link UnitValue}.
*
* @param maxHeight a {@link UnitValue} object
* @return the block element itself
*/
public T setMaxHeight(UnitValue maxHeight) {
setProperty(Property.MAX_HEIGHT, maxHeight);
return (T) (Object) this;
}
/**
* Sets the min-height property of a block element with a {@link UnitValue}.
*
* @param minHeight a {@link UnitValue} object
* @return the block element itself
*/
public T setMinHeight(UnitValue minHeight) {
setProperty(Property.MIN_HEIGHT, minHeight);
return (T) (Object) this;
}
/**
* Sets the min-height of a block element as point-unit value.
* @param minHeight a floating point value for the new min-height
* @return the block element itself
*/
public T setMinHeight(float minHeight) {
UnitValue minHeightAsUV = UnitValue.createPointValue(minHeight);
setProperty(Property.MIN_HEIGHT, minHeightAsUV);
return (T) (Object) this;
}
/**
* Sets the max-width property of a block element with a {@link UnitValue}.
*
* @param maxWidth a {@link UnitValue} object
* @return the block element itself
*/
public T setMaxWidth(UnitValue maxWidth) {
setProperty(Property.MAX_WIDTH, maxWidth);
return (T) (Object) this;
}
/**
* Sets the max-width of a block element as point-unit value.
* @param maxWidth a floating point value for the new max-width
* @return the block element itself
*/
public T setMaxWidth(float maxWidth) {
setProperty(Property.MAX_WIDTH, UnitValue.createPointValue(maxWidth));
return (T) (Object) this;
}
/**
* Sets the min-width property of a block element with a {@link UnitValue}.
*
* @param minWidth a {@link UnitValue} object
* @return the block element itself
*/
public T setMinWidth(UnitValue minWidth) {
setProperty(Property.MIN_WIDTH, minWidth);
return (T) (Object) this;
}
/**
* Sets the min-width of a block element as point-unit value.
* @param minWidth a floating point value for the new min-width
* @return the block element itself
*/
public T setMinWidth(float minWidth) {
setProperty(Property.MIN_WIDTH, UnitValue.createPointValue(minWidth));
return (T) (Object) this;
}
}
