Class AbstractTextFieldRenderer

java.lang.Object

com.itextpdf.layout.renderer.AbstractRenderer

com.itextpdf.layout.renderer.BlockRenderer

com.itextpdf.forms.form.renderer.AbstractFormFieldRenderer

com.itextpdf.forms.form.renderer.AbstractTextFieldRenderer

All Implemented Interfaces:

IPropertyContainer, IRenderer

Direct Known Subclasses:

AbstractOneLineTextFieldRenderer, SignatureAppearanceRenderer, TextAreaRenderer

public abstract class AbstractTextFieldRenderer
extends AbstractFormFieldRenderer

Abstract AbstractFormFieldRenderer for form fields with text content.

Field Summary

Fields

Modifier and Type	Field	Description
protected PdfFont	font	The font to be used for the text.

Fields inherited from class AbstractFormFieldRenderer

flatRenderer

Fields inherited from class AbstractRenderer

childRenderers, EPS, flushed, INF, isLastRendererForModelElement, modelElement, occupiedArea, OVERLAP_EPSILON, parent, positionedRenderers, properties

Constructor Summary

Constructors

Constructor	Description
AbstractTextFieldRenderer(IFormField modelElement)	Creates a new AbstractTextFieldRenderer instance.

Method Summary

Modifier and Type	Method	Description
(package private) void	adjustNumberOfContentLines(List<LineRenderer> lines, Rectangle bBox, float height)	Adjust number of content lines.
(package private) void	adjustNumberOfContentLines(List<LineRenderer> lines, Rectangle bBox, int rows)	Adjust number of content lines.
private static void	adjustNumberOfContentLines(List<LineRenderer> lines, Rectangle bBox, int linesNumber, float height)
(package private) void	applyDefaultFieldProperties(PdfFormField inputField)	Applies the default field properties.
(package private) float	approximateFontSize(LayoutContext layoutContext, float lFontSize, float rFontSize)	Approximates font size to fit occupied area if width anf height are specified.
(package private) float	calculateFittingFontSize(IRenderer renderer, float lFontSize, float rFontSize, LayoutContext newLayoutContext, int numberOfIterations)
(package private) IRenderer	createParagraphRenderer(String defaultValue)	Creates a paragraph renderer.
(package private) float	getHeightRowsBased(List<LineRenderer> lines, Rectangle bBox, int rows)
(package private) float	getLowestChildBottom(IRenderer renderer, float value)	Gets the value of the lowest bottom coordinate for all field's children recursively.
(package private) float	updateHtmlColsSizeBasedWidth(float width)
(package private) void	updatePdfFont(ParagraphRenderer renderer)	Updates the font.

Methods inherited from class AbstractFormFieldRenderer

adjustFieldLayout, applyAccessibilityProperties, applyAcroField, createFlatRenderer, draw, drawChildren, getConformance, getDefaultValue, getLang, getMinMaxWidth, getModelId, isFlatten, isLayoutBasedOnFlatRenderer, isRendererFit, layout, writeAcroFormFieldLangAttribute

Methods inherited from class BlockRenderer

applyRotationLayout, applyVerticalAlignment, beginRotationIfApplied, createOverflowRenderer, createRotationTransformInsideOccupiedArea, createSplitRenderer, endRotationIfApplied, getMinMaxWidth, getOccupiedAreaBBox, getResolvedFont

Methods inherited from class AbstractRenderer

addAllProperties, addChild, alignChildHorizontally, allowLastYLineRecursiveExtraction, applyAbsolutePosition, applyAction, applyBorderBox, applyBorderBox, applyDestination, applyDestinationsAndAnnotation, applyLinkAnnotation, applyMargins, applyMargins, applyPaddings, applyPaddings, applyRelativePositioningTranslation, beginElementOpacityApplying, beginTransformationIfApplied, calculateAbsolutePdfBBox, calculateBBox, calculateShiftToPositionBBoxOfPointsAt, clipBackgroundArea, clipBackgroundArea, clipBorderArea, createXObject, deleteOwnProperty, deleteProperty, drawBackground, drawBorder, endElementOpacityApplying, endTransformationIfApplied, getBackgroundArea, getBorderAreaBBox, getBorderRadii, getBorders, getChildRenderers, getDefaultProperty, getFirstYLineRecursively, getInnerAreaBBox, getLastYLineRecursively, getMargins, getModelElement, getOccupiedArea, getOwnProperties, getOwnProperty, getPaddings, getParent, getProperty, getProperty, getPropertyAsBoolean, getPropertyAsColor, getPropertyAsFloat, getPropertyAsFloat, getPropertyAsFont, getPropertyAsInteger, getPropertyAsTransparentColor, getPropertyAsUnitValue, hasAbsoluteUnitValue, hasOwnOrModelProperty, hasOwnProperty, hasProperty, hasRelativeUnitValue, initElementAreas, isAbsolutePosition, isBorderBoxSizing, isFirstOnRootArea, isFixedLayout, isFlushed, isKeepTogether, isNotFittingHeight, isNotFittingLayoutArea, isNotFittingWidth, isOverflowFit, isOverflowProperty, isOverflowProperty, isOverflowProperty, isPositioned, isRelativePosition, isStaticLayout, move, rectangleToPointsList, retrieveHeight, retrieveMaxHeight, retrieveMaxWidth, retrieveMinHeight, retrieveMinWidth, retrieveResolvedDeclaredHeight, retrieveUnitValue, retrieveUnitValue, retrieveWidth, setBorders, setMinMaxWidthBasedOnFixedWidth, setParent, setProperty, toString, transformPoints, updateHeight, updateHeightsOnSplit, updateMaxHeight, updateMinHeight, updateWidth

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface IRenderer

getNextRenderer

Field Details

font

protected PdfFont font

The font to be used for the text.

Constructor Details

AbstractTextFieldRenderer

AbstractTextFieldRenderer(IFormField modelElement)

Creates a new AbstractTextFieldRenderer instance.

Parameters:

modelElement - the model element

Method Details

createParagraphRenderer

IRenderer createParagraphRenderer(String defaultValue)

Creates a paragraph renderer.

Parameters:

defaultValue - the default value

Returns:

the renderer

applyDefaultFieldProperties

void applyDefaultFieldProperties(PdfFormField inputField)

Applies the default field properties.

Parameters:

inputField - the input field

getHeightRowsBased

float getHeightRowsBased(List<LineRenderer> lines,
 Rectangle bBox,
 int rows)

updatePdfFont

void updatePdfFont(ParagraphRenderer renderer)

Updates the font.

Parameters:

renderer - the renderer

approximateFontSize

float approximateFontSize(LayoutContext layoutContext,
 float lFontSize,
 float rFontSize)

Approximates font size to fit occupied area if width anf height are specified.

Parameters:

layoutContext - layout context that specifies layout area.

lFontSize - minimal font size value.

rFontSize - maximum font size value.

Returns:

fitting font size or -1 in case it shouldn't be approximated.

calculateFittingFontSize

float calculateFittingFontSize(IRenderer renderer,
 float lFontSize,
 float rFontSize,
 LayoutContext newLayoutContext,
 int numberOfIterations)

updateHtmlColsSizeBasedWidth

float updateHtmlColsSizeBasedWidth(float width)

adjustNumberOfContentLines

void adjustNumberOfContentLines(List<LineRenderer> lines,
 Rectangle bBox,
 int rows)

Adjust number of content lines.

Parameters:

lines - the lines that need to be rendered

bBox - the bounding box

rows - the desired number of lines

adjustNumberOfContentLines

void adjustNumberOfContentLines(List<LineRenderer> lines,
 Rectangle bBox,
 float height)

Adjust number of content lines.

Parameters:

lines - the lines that need to be rendered

bBox - the bounding box

height - the desired height of content

getLowestChildBottom

float getLowestChildBottom(IRenderer renderer,
 float value)

Gets the value of the lowest bottom coordinate for all field's children recursively.

Returns:

the lowest child bottom.

adjustNumberOfContentLines

private static void adjustNumberOfContentLines(List<LineRenderer> lines,
 Rectangle bBox,
 int linesNumber,
 float height)