Package net.sf.jasperreports.engine.base

Class JRBaseImage

java.lang.Object

net.sf.jasperreports.engine.base.JRBaseElement

net.sf.jasperreports.engine.base.JRBaseGraphicElement

net.sf.jasperreports.engine.base.JRBaseImage

All Implemented Interfaces:

Serializable, Cloneable, JRChangeEventsSupport, JRAnchor, JRBoxContainer, JRChild, JRCloneable, JRCommonElement, JRCommonGraphicElement, JRCommonImage, JRElement, JREvaluation, JRGraphicElement, JRHyperlink, JRIdentifiable, JRImage, JRImageAlignment, JRPenContainer, JRPropertiesHolder, JRStyleContainer, JRVisitable

public class JRBaseImage
extends JRBaseGraphicElement
implements JRImage

The actual implementation of a graphic element representing an image.

Author:

Teodor Danciu (teodord@users.sourceforge.net)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected JRExpression	anchorNameExpression
protected int	bookmarkLevel	The bookmark level for the anchor associated with this image.
protected JRExpression	bookmarkLevelExpression
protected String	evaluationGroup
protected EvaluationTimeEnum	evaluationTime
protected JRExpression	expression
protected HorizontalImageAlignEnum	horizontalImageAlign
protected JRExpression	hyperlinkAnchorExpression
protected JRExpression	hyperlinkPageExpression
protected JRExpression	hyperlinkReferenceExpression
protected JRExpression	hyperlinkWhenExpression
protected boolean	isLazy
protected Boolean	isUsingCache
protected JRLineBox	lineBox
protected String	linkTarget
protected String	linkType
protected OnErrorTypeEnum	onErrorType
static String	PROPERTY_LAZY
static String	PROPERTY_ON_ERROR_TYPE
static String	PROPERTY_USING_CACHE
protected RotationEnum	rotation
protected ScaleImageEnum	scaleImage
protected VerticalImageAlignEnum	verticalImageAlign

Fields inherited from class net.sf.jasperreports.engine.base.JRBaseGraphicElement

fill, linePen

Fields inherited from class net.sf.jasperreports.engine.base.JRBaseElement

backcolor, defaultStyleProvider, elementGroup, forecolor, height, isPrintInFirstWholeBand, isPrintRepeatedValues, isPrintWhenDetailOverflows, isRemoveLineWhenBlank, key, mode, parentStyle, parentStyleNameReference, positionType, printWhenExpression, printWhenGroupChanges, PROPERTY_POSITION_TYPE, PROPERTY_PRINT_IN_FIRST_WHOLE_BAND, PROPERTY_PRINT_REPEATED_VALUES, PROPERTY_PRINT_WHEN_DETAIL_OVERFLOWS, PROPERTY_REMOVE_LINE_WHEN_BLANK, PROPERTY_STRETCH_TYPE, PROPERTY_WIDTH, PROPERTY_X, stretchType, styleExpression, uuid, width, x, y

Fields inherited from interface net.sf.jasperreports.engine.JRAnchor

NO_BOOKMARK

Fields inherited from interface net.sf.jasperreports.engine.JRElement

PROPERTY_ELEMENT_TEMPLATE_POPULATE_STYLE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JRBaseImage(JRImage image, JRBaseObjectFactory factory)	protected JRBaseImage() { super(); } /** Initializes properties that are specific to images.

Method Summary

Modifier and Type	Method	Description
Object	clone()
void	collectExpressions(JRExpressionCollector collector)
JRExpression	getAnchorNameExpression()	Returns an expression whose value represents the anchor name.
int	getBookmarkLevel()	Returns the level of the bookmark corresponding to the anchor.
JRExpression	getBookmarkLevelExpression()	Returns an expression whose value represents the bookmark level (starting from 1) corresponding to this anchor.
Float	getDefaultLineWidth()
String	getEvaluationGroup()	Gets the evaluation group for this text field.
EvaluationTimeEnum	getEvaluationTime()	Gets the evaluation time for this text field.
JRExpression	getExpression()
HorizontalImageAlignEnum	getHorizontalImageAlign()	Gets the image horizontal alignment.
JRExpression	getHyperlinkAnchorExpression()	Returns the expression whose value represents the anchor.
JRExpression	getHyperlinkPageExpression()	Returns an integer representing the page index of the link.
JRHyperlinkParameter[]	getHyperlinkParameters()	Returns the list of hyperlink parameters.
JRExpression	getHyperlinkReferenceExpression()	Returns the expression whose value represents the hyperlink reference.
HyperlinkTargetEnum	getHyperlinkTarget()	Retrieves the hyperlink target for the element.
JRExpression	getHyperlinkTooltipExpression()	Returns the expression which will generate the hyperlink tooltip.
HyperlinkTypeEnum	getHyperlinkType()	Retrieves the hyperlink type for the element.
JRExpression	getHyperlinkWhenExpression()	Returns the expression that is evaluated in order to decide if the hyperlink should be displayed.
JRLineBox	getLineBox()
String	getLinkTarget()	Returns the hyperlink target name.
String	getLinkType()	Returns the hyperlink type.
ModeEnum	getMode()	Returns the element transparency mode.
OnErrorTypeEnum	getOnErrorType()	Indicates how the engine will treat a missing image.
HorizontalImageAlignEnum	getOwnHorizontalImageAlign()
RotationEnum	getOwnRotation()	Gets the image own rotation.
ScaleImageEnum	getOwnScaleImage()	Gets the image own scale type.
VerticalImageAlignEnum	getOwnVerticalImageAlign()
RotationEnum	getRotation()	Gets the image rotation.
ScaleImageEnum	getScaleImage()	Gets the image scale type.
Boolean	getUsingCache()	Indicates if the engine is loading the current image from cache.
VerticalImageAlignEnum	getVerticalImageAlign()	Gets the image vertical alignment.
boolean	isLazy()	Indicates if the images will be loaded lazily or not.
void	setHorizontalImageAlign(HorizontalImageAlignEnum horizontalImageAlign)	Sets the image horizontal alignment.
void	setLazy(boolean isLazy)	Gives control over when the images are retrieved from their specified location.
void	setOnErrorType(OnErrorTypeEnum onErrorType)	Specifies how the engine should treat a missing image.
void	setRotation(RotationEnum rotation)	Sets the image rotation.
void	setScaleImage(ScaleImageEnum scaleImage)	Sets the image scale type.
void	setUsingCache(Boolean isUsingCache)	Specifies if the engine should be loading the current image from cache.
void	setVerticalImageAlign(VerticalImageAlignEnum verticalImageAlign)	Gets the image vertical alignment.
void	visit(JRVisitor visitor)

Methods inherited from class net.sf.jasperreports.engine.base.JRBaseGraphicElement

getDefaultLineColor, getFill, getLinePen, getOwnFill, setFill

Methods inherited from class net.sf.jasperreports.engine.base.JRBaseElement

clone, clone, getBackcolor, getBaseStyle, getDefaultStyleProvider, getElementGroup, getEventSupport, getForecolor, getHeight, getKey, getOwnBackcolor, getOwnForecolor, getOwnMode, getParentProperties, getPositionType, getPrintWhenExpression, getPrintWhenGroupChanges, getPropertiesMap, getPropertyExpressions, getStretchType, getStyle, getStyleExpression, getStyleNameReference, getStyleResolver, getUUID, getWidth, getX, getY, hasProperties, isPrintInFirstWholeBand, isPrintRepeatedValues, isPrintWhenDetailOverflows, isRemoveLineWhenBlank, setBackcolor, setForecolor, setMode, setPositionType, setPrintInFirstWholeBand, setPrintRepeatedValues, setPrintWhenDetailOverflows, setRemoveLineWhenBlank, setStretchType, setUUID, setWidth, setX

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.jasperreports.engine.JRBoxContainer

getDefaultLineColor

Methods inherited from interface net.sf.jasperreports.engine.JRChild

clone

Methods inherited from interface net.sf.jasperreports.engine.JRCommonElement

getBackcolor, getForecolor, getHeight, getKey, getOwnBackcolor, getOwnForecolor, getOwnMode, getWidth, setBackcolor, setForecolor, setMode

Methods inherited from interface net.sf.jasperreports.engine.JRCommonGraphicElement

getFill, getLinePen, getOwnFill, setFill

Methods inherited from interface net.sf.jasperreports.engine.JRElement

clone, getElementGroup, getPositionType, getPrintWhenExpression, getPrintWhenGroupChanges, getPropertyExpressions, getStretchType, getStyleExpression, getX, getY, isPrintInFirstWholeBand, isPrintRepeatedValues, isPrintWhenDetailOverflows, isRemoveLineWhenBlank, setPositionType, setPrintInFirstWholeBand, setPrintRepeatedValues, setPrintWhenDetailOverflows, setRemoveLineWhenBlank, setStretchType, setWidth, setX

Methods inherited from interface net.sf.jasperreports.engine.JRIdentifiable

getUUID

Methods inherited from interface net.sf.jasperreports.engine.JRPenContainer

getDefaultLineColor

Methods inherited from interface net.sf.jasperreports.engine.JRPropertiesHolder

getParentProperties, getPropertiesMap, hasProperties

Methods inherited from interface net.sf.jasperreports.engine.JRStyleContainer

getDefaultStyleProvider, getStyle, getStyleName, getStyleNameReference

Field Detail

PROPERTY_LAZY

public static final String PROPERTY_LAZY

See Also:

Constant Field Values

PROPERTY_ON_ERROR_TYPE

public static final String PROPERTY_ON_ERROR_TYPE

See Also:

Constant Field Values

PROPERTY_USING_CACHE

public static final String PROPERTY_USING_CACHE

See Also:

Constant Field Values

scaleImage

protected ScaleImageEnum scaleImage

rotation

protected RotationEnum rotation

horizontalImageAlign

protected HorizontalImageAlignEnum horizontalImageAlign

verticalImageAlign

protected VerticalImageAlignEnum verticalImageAlign

isUsingCache

protected Boolean isUsingCache

isLazy

protected boolean isLazy

onErrorType

protected OnErrorTypeEnum onErrorType

evaluationTime

protected EvaluationTimeEnum evaluationTime

linkType

protected String linkType

linkTarget

protected String linkTarget

lineBox

protected JRLineBox lineBox

evaluationGroup

protected String evaluationGroup

expression

protected JRExpression expression

anchorNameExpression

protected JRExpression anchorNameExpression

bookmarkLevelExpression

protected JRExpression bookmarkLevelExpression

hyperlinkReferenceExpression

protected JRExpression hyperlinkReferenceExpression

hyperlinkWhenExpression

protected JRExpression hyperlinkWhenExpression

hyperlinkAnchorExpression

protected JRExpression hyperlinkAnchorExpression

hyperlinkPageExpression

protected JRExpression hyperlinkPageExpression

bookmarkLevel

protected int bookmarkLevel

The bookmark level for the anchor associated with this image.

See Also:

JRAnchor.getBookmarkLevel()

Constructor Detail

JRBaseImage

protected JRBaseImage(JRImage image,
                      JRBaseObjectFactory factory)

protected JRBaseImage() { super(); } /** Initializes properties that are specific to images. Common properties are initialized by its parent constructors.

Parameters:

image - an element whose properties are copied to this element. Usually it is a JRDesignImage that must be transformed into an JRBaseImage at compile time.

factory - a factory used in the compile process

Method Detail

getMode

public ModeEnum getMode()

Description copied from interface: JRCommonElement

Returns the element transparency mode. The default value depends on the type of the report element. Graphic elements like rectangles and lines are opaque by default, but the images are transparent. Both static texts and text fields are transparent by default, and so are the subreport elements.

Specified by:

getMode in interface JRCommonElement

Overrides:

getMode in class JRBaseElement

getScaleImage

public ScaleImageEnum getScaleImage()

Description copied from interface: JRCommonImage

Gets the image scale type.

Specified by:

getScaleImage in interface JRCommonImage

Returns:

a value representing one of the scale type constants in ScaleImageEnum

getOwnScaleImage

public ScaleImageEnum getOwnScaleImage()

Description copied from interface: JRCommonImage

Gets the image own scale type.

Specified by:

getOwnScaleImage in interface JRCommonImage

Returns:

a value representing one of the scale type constants in ScaleImageEnum

setScaleImage

public void setScaleImage(ScaleImageEnum scaleImage)

Description copied from interface: JRCommonImage

Sets the image scale type.

Specified by:

setScaleImage in interface JRCommonImage

Parameters:

scaleImage - a value representing one of the scale type constants in ScaleImageEnum

getRotation

public RotationEnum getRotation()

Description copied from interface: JRCommonImage

Gets the image rotation.

Specified by:

getRotation in interface JRCommonImage

Returns:

a value representing one of the image rotation constants in RotationEnum

getOwnRotation

public RotationEnum getOwnRotation()

Description copied from interface: JRCommonImage

Gets the image own rotation.

Specified by:

getOwnRotation in interface JRCommonImage

Returns:

a value representing one of the image rotation constants in RotationEnum

setRotation

public void setRotation(RotationEnum rotation)

Description copied from interface: JRCommonImage

Sets the image rotation.

Specified by:

setRotation in interface JRCommonImage

Parameters:

rotation - a value representing one of the image rotation constants in RotationEnum

getHorizontalImageAlign

public HorizontalImageAlignEnum getHorizontalImageAlign()

Description copied from interface: JRImageAlignment

Gets the image horizontal alignment.

Specified by:

getHorizontalImageAlign in interface JRImageAlignment

Returns:

a value representing one of the horizontal image alignment constants in HorizontalImageAlignEnum

getOwnHorizontalImageAlign

public HorizontalImageAlignEnum getOwnHorizontalImageAlign()

Specified by:

getOwnHorizontalImageAlign in interface JRImageAlignment

setHorizontalImageAlign

public void setHorizontalImageAlign(HorizontalImageAlignEnum horizontalImageAlign)

Description copied from interface: JRImageAlignment

Sets the image horizontal alignment.

Specified by:

setHorizontalImageAlign in interface JRImageAlignment

Parameters:

horizontalImageAlign - a value representing one of the horizontal image alignment constants in HorizontalImageAlignEnum

getVerticalImageAlign

public VerticalImageAlignEnum getVerticalImageAlign()

Description copied from interface: JRImageAlignment

Gets the image vertical alignment.

Specified by:

getVerticalImageAlign in interface JRImageAlignment

Returns:

a value representing one of the vertical image alignment constants in VerticalImageAlignEnum

getOwnVerticalImageAlign

public VerticalImageAlignEnum getOwnVerticalImageAlign()

Specified by:

getOwnVerticalImageAlign in interface JRImageAlignment

setVerticalImageAlign

public void setVerticalImageAlign(VerticalImageAlignEnum verticalImageAlign)

Description copied from interface: JRImageAlignment

Gets the image vertical alignment.

Specified by:

setVerticalImageAlign in interface JRImageAlignment

Parameters:

verticalImageAlign - a value representing one of the vertical image alignment constants in VerticalImageAlignEnum

getUsingCache

public Boolean getUsingCache()

Description copied from interface: JRImage

Indicates if the engine is loading the current image from cache. Implementations of this method return the actual value for the internal flag that was explicitly set on this image element.

Specified by:

getUsingCache in interface JRImage

Returns:

Boolean.TRUE if the image should be loaded from cache, Boolean.FALSE otherwise or null in case the flag was never explicitly set on this image element

setUsingCache

public void setUsingCache(Boolean isUsingCache)

Description copied from interface: JRImage

Specifies if the engine should be loading the current image from cache. If set to Boolean.TRUE, the reporting engine will try to recognize previously loaded images using their specified source. For example, it will recognize an image if the image source is a file name that it has already loaded, or if it is the same URL.

If set to null, the engine will rely on some default value which depends on the type of the image expression. The cache is turned on by default only for images that have java.lang.String objects in their expressions.

Specified by:

setUsingCache in interface JRImage

isLazy

public boolean isLazy()

Description copied from interface: JRImage

Indicates if the images will be loaded lazily or not.

Specified by:

isLazy in interface JRImage

setLazy

public void setLazy(boolean isLazy)

Description copied from interface: JRImage

Gives control over when the images are retrieved from their specified location. If set to true, the image is loaded from the specified location only when the document is viewed or exported to other formats. Otherwise it is loaded during the report filling process and stored in the resulting document.

Specified by:

setLazy in interface JRImage

Parameters:

isLazy - specifies whether

getOnErrorType

public OnErrorTypeEnum getOnErrorType()

Description copied from interface: JRImage

Indicates how the engine will treat a missing image.

Specified by:

getOnErrorType in interface JRImage

Returns:

a value representing one of the missing image handling constants in OnErrorTypeEnum

setOnErrorType

public void setOnErrorType(OnErrorTypeEnum onErrorType)

Description copied from interface: JRImage

Specifies how the engine should treat a missing image.

Specified by:

setOnErrorType in interface JRImage

Parameters:

onErrorType - a value representing one of the missing image handling constants in OnErrorTypeEnum

getEvaluationTime

public EvaluationTimeEnum getEvaluationTime()

Description copied from interface: JREvaluation

Gets the evaluation time for this text field.

Specified by:

getEvaluationTime in interface JREvaluation

Returns:

one of the evaluation time constants in JRExpression

getLineBox

public JRLineBox getLineBox()

Specified by:

getLineBox in interface JRBoxContainer

getHyperlinkType

public HyperlinkTypeEnum getHyperlinkType()

Description copied from interface: JRHyperlink

Retrieves the hyperlink type for the element.

The actual hyperlink type is determined by getLinkType(). This method can is used to determine whether the hyperlink type is one of the built-in types or a custom type. When hyperlink is of custom type, CUSTOM is returned.

Specified by:

getHyperlinkType in interface JRHyperlink

Returns:

one of the hyperlink type constants

See Also:

JRHyperlink.getLinkType()

getHyperlinkTarget

public HyperlinkTargetEnum getHyperlinkTarget()

Description copied from interface: JRHyperlink

Retrieves the hyperlink target for the element.

The actual hyperlink target is determined by getLinkTarget(). This method can is used to determine whether the hyperlink target is one of the built-in target names or a custom one. When hyperlink has a custom target name, HyperlinkTargetEnum.CUSTOM is returned.

Specified by:

getHyperlinkTarget in interface JRHyperlink

Returns:

one of the hyperlink target constants

See Also:

JRHyperlink.getLinkTarget()

getEvaluationGroup

public String getEvaluationGroup()

Description copied from interface: JREvaluation

Gets the evaluation group for this text field. Used only when evaluation time is group.

Specified by:

getEvaluationGroup in interface JREvaluation

See Also:

EvaluationTimeEnum.GROUP

getExpression

public JRExpression getExpression()

Specified by:

getExpression in interface JRImage

getAnchorNameExpression

public JRExpression getAnchorNameExpression()

Description copied from interface: JRAnchor

Returns an expression whose value represents the anchor name.

Specified by:

getAnchorNameExpression in interface JRAnchor

getBookmarkLevelExpression

public JRExpression getBookmarkLevelExpression()

Description copied from interface: JRAnchor

Returns an expression whose value represents the bookmark level (starting from 1) corresponding to this anchor. When the expression is set and its value is not null, it will override the value of the bookmarkLevel attribute.

Specified by:

getBookmarkLevelExpression in interface JRAnchor

getHyperlinkReferenceExpression

public JRExpression getHyperlinkReferenceExpression()

Description copied from interface: JRHyperlink

Returns the expression whose value represents the hyperlink reference. It is only used when the hyperlink type is reference or anchor

Specified by:

getHyperlinkReferenceExpression in interface JRHyperlink

getHyperlinkWhenExpression

public JRExpression getHyperlinkWhenExpression()

Description copied from interface: JRHyperlink

Returns the expression that is evaluated in order to decide if the hyperlink should be displayed. This expression always returns a boolean value.

Specified by:

getHyperlinkWhenExpression in interface JRHyperlink

getHyperlinkAnchorExpression

public JRExpression getHyperlinkAnchorExpression()

Description copied from interface: JRHyperlink

Returns the expression whose value represents the anchor. It is only used when the hyperlink type is anchor.

Specified by:

getHyperlinkAnchorExpression in interface JRHyperlink

getHyperlinkPageExpression

public JRExpression getHyperlinkPageExpression()

Description copied from interface: JRHyperlink

Returns an integer representing the page index of the link. It is only used when the hyperlink type is page. If the expression does not evaluate to an integer, an exception will be thrown.

Specified by:

getHyperlinkPageExpression in interface JRHyperlink

collectExpressions

public void collectExpressions(JRExpressionCollector collector)

Specified by:

collectExpressions in interface JRElement

visit

public void visit(JRVisitor visitor)

Specified by:

visit in interface JRVisitable

getBookmarkLevel

public int getBookmarkLevel()

Description copied from interface: JRAnchor

Returns the level of the bookmark corresponding to the anchor.

Specified by:

getBookmarkLevel in interface JRAnchor

Returns:

the level of the bookmark corresponding to the anchor (starting from 1) or NO_BOOKMARK if no bookmark should be created for this anchor

getDefaultLineWidth

public Float getDefaultLineWidth()

Specified by:

getDefaultLineWidth in interface JRPenContainer

Overrides:

getDefaultLineWidth in class JRBaseGraphicElement

getLinkType

public String getLinkType()

Description copied from interface: JRHyperlink

Returns the hyperlink type.

The type can be one of the built-in types (Reference, LocalAnchor, LocalPage, RemoteAnchor, RemotePage), or can be an arbitrary type.

Specified by:

getLinkType in interface JRHyperlink

Returns:

the hyperlink type

getLinkTarget

public String getLinkTarget()

Description copied from interface: JRHyperlink

Returns the hyperlink target name.

The type can be one of the built-in names (Self, Blank, Top, Parent), or can be an arbitrary name.

Specified by:

getLinkTarget in interface JRHyperlink

Returns:

the hyperlink target name

getHyperlinkParameters

public JRHyperlinkParameter[] getHyperlinkParameters()

Description copied from interface: JRHyperlink

Returns the list of hyperlink parameters.

The parameters can be used by custom hyperlink types to generate dynamic links.

Specified by:

getHyperlinkParameters in interface JRHyperlink

Returns:

the list of hyperlink parameters

getHyperlinkTooltipExpression

public JRExpression getHyperlinkTooltipExpression()

Description copied from interface: JRHyperlink

Returns the expression which will generate the hyperlink tooltip.

Specified by:

getHyperlinkTooltipExpression in interface JRHyperlink

Returns:

the expression which will generate the hyperlink tooltip

clone

public Object clone()

Specified by:

clone in interface JRCloneable

Overrides:

clone in class JRBaseGraphicElement