org.eclipse.compare
Class CompareConfiguration

java.lang.Object
  |
  +--org.eclipse.compare.CompareConfiguration

public class CompareConfiguration

extends Object

A CompareConfiguration object controls various UI aspects of compare/merge viewers like title labels and images, or whether a side of a merge viewer is editable. In addition to these fixed properties ICompareConfiguration provides API for an open ended set of properties. Different viewers which share the same configuration can communicate via this mechanism. E.g. if a compare editor has a button for controlling whether compare viewers ignore white space, the button would trigger a change of the boolean IGNORE_WHITESPACE property and all interested viewers would receive notification.

Suitable default labels are provided (without images); both the left and right sides are editable.

Clients may use this class as is, or subclass to add new state and behavior.

Field Summary

static String	IGNORE_WHITESPACE Name of the ignore whitespace property (value "IGNORE_WHITESPACE").
static String	SHOW_PSEUDO_CONFLICTS Name of the show pseudo conflicts property (value "SHOW_PSEUDO_CONFLICTS").

Constructor Summary

CompareConfiguration()
Creates a new configuration with editable left and right sides, suitable default labels, and no images.

CompareConfiguration(IPreferenceStore prefStore)
Creates a new configuration with editable left and right sides, suitable default labels, and no images.

Method Summary

void	addPropertyChangeListener(IPropertyChangeListener listener)
void	dispose() Dispose of this compare configuration.
Image	getAncestorImage(Object element) Returns the image for the ancestor side of compare/merge viewers.
String	getAncestorLabel(Object element) Returns the label for the ancestor side of compare/merge viewers.
Image	getImage(Image base, int kind) Returns an image showing the specified change kind applied to a given base image.
Image	getImage(int kind) Returns an image showing the specified change kind.
Image	getLeftImage(Object element) Returns the image for the left hand side of compare/merge viewers.
String	getLeftLabel(Object element) Returns the label for the left hand side of compare/merge viewers.
IPreferenceStore	getPreferenceStore() Returns the preference store of this configuration.
Object	getProperty(String key) Returns the property with the given name, or null if no such property exists.
Image	getRightImage(Object element) Returns the image for the right hand side of compare/merge viewers.
String	getRightLabel(Object element) Returns the label for the right hand side of compare/merge viewers.
boolean	isLeftEditable() Returns whether the left hand side of a merge viewer is editable.
boolean	isRightEditable() Returns whether the right hand side of a merge viewer is editable.
void	removePropertyChangeListener(IPropertyChangeListener listener)
void	setAncestorImage(Image image) Sets the image to use for the ancestor of compare/merge viewers.
void	setAncestorLabel(String label) Sets the label to use for the ancestor of compare/merge viewers.
void	setLeftEditable(boolean editable) Controls whether the left side of a merge viewer is editable.
void	setLeftImage(Image image) Sets the image to use for the left side of compare/merge viewers.
void	setLeftLabel(String label) Sets the label to use for the left side of compare/merge viewers.
void	setProperty(String key, Object newValue) Sets the property with the given name.
void	setRightEditable(boolean editable) Controls whether the right side of a merge viewer is editable.
void	setRightImage(Image image) Sets the image to use for the right side of compare/merge viewers.
void	setRightLabel(String label) Sets the label to use for the right side of compare/merge viewers.

Methods inherited from class java.lang.Object

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

Field Detail

IGNORE_WHITESPACE

public static final String IGNORE_WHITESPACE

Name of the ignore whitespace property (value "IGNORE_WHITESPACE").

See Also:

Constant Field Values

SHOW_PSEUDO_CONFLICTS

public static final String SHOW_PSEUDO_CONFLICTS

Name of the show pseudo conflicts property (value "SHOW_PSEUDO_CONFLICTS").

See Also:

Constant Field Values

Constructor Detail

CompareConfiguration

public CompareConfiguration(IPreferenceStore prefStore)

Creates a new configuration with editable left and right sides, suitable default labels, and no images. The given preference store is used to connect this configuration with the Compare preference page properties ComparePreferencePage.INITIALLY_SHOW_ANCESTOR_PANE, and CompareConfiguration.IGNORE_WHITESPACE.

Parameters:

prefStore - the preference store which this configuration holds onto.

Since:

2.0

CompareConfiguration

public CompareConfiguration()

Creates a new configuration with editable left and right sides, suitable default labels, and no images. This configuration uses the preference store of the Compare plugin (CompareUIPlugin.getDefault().getPreferenceStore()).

Method Detail

getPreferenceStore

public IPreferenceStore getPreferenceStore()

Returns the preference store of this configuration.

Returns:

the preference store of this configuration.

Since:

2.0

getImage

public Image getImage(int kind)

Returns an image showing the specified change kind. The different kind of changes are defined in the Differencer. Newly created images are remembered by this class and disposed when the dispose method is called.

Parameters:

kind - the kind of change as defined in Differencer.

Returns:

an modification of the base image reflecting the kind of change.

Since:

2.0

See Also:

Differencer

getImage

public Image getImage(Image base,
                      int kind)

Returns an image showing the specified change kind applied to a given base image. The different kind of changes are defined in the Differencer. Typically an implementation would build a composite image from the given base image and an image representing the change kind. Newly created images are remembered by this class and disposed when the dispose method is called.

Parameters:

base - the image which is modified to reflect the kind of change

kind - the kind of change as defined in Differencer.

Returns:

an modification of the base image reflecting the kind of change.

See Also:

Differencer

dispose

public void dispose()

Dispose of this compare configuration. This method is called if the compare configuration is no longer used. An implementation must dispose of all resources.

addPropertyChangeListener

public void addPropertyChangeListener(IPropertyChangeListener listener)

removePropertyChangeListener

public void removePropertyChangeListener(IPropertyChangeListener listener)

setProperty

public void setProperty(String key,
                        Object newValue)

Sets the property with the given name. If the new value differs from the old a PropertyChangeEvent is sent to registered listeners.

getProperty

public Object getProperty(String key)

Returns the property with the given name, or null if no such property exists.

Returns:

the property with the given name, or null if not found

setAncestorLabel

public void setAncestorLabel(String label)

Sets the label to use for the ancestor of compare/merge viewers.

Parameters:

label - the new label for the ancestor of compare/merge viewers

getAncestorLabel

public String getAncestorLabel(Object element)

Returns the label for the ancestor side of compare/merge viewers. This label is typically shown in the title of the ancestor area in a compare viewer.

Parameters:

element - the input object of a compare/merge viewer or null

Returns:

the label for the ancestor side or null

setAncestorImage

public void setAncestorImage(Image image)

Sets the image to use for the ancestor of compare/merge viewers. The CompareConfiguration does not automatically dispose the old image.

Parameters:

image - the new image for the ancestor of compare/merge viewers

getAncestorImage

public Image getAncestorImage(Object element)

Returns the image for the ancestor side of compare/merge viewers. This image is typically shown in the title of the ancestor area in a compare viewer.

Parameters:

element - the input object of a compare/merge viewer or null

Returns:

the image for the ancestor side or null

setLeftEditable

public void setLeftEditable(boolean editable)

Controls whether the left side of a merge viewer is editable.

Parameters:

editable - if the value is true left side is editable

isLeftEditable

public boolean isLeftEditable()

Returns whether the left hand side of a merge viewer is editable.

Returns:

true if the left hand side is editable

setLeftLabel

public void setLeftLabel(String label)

Sets the label to use for the left side of compare/merge viewers.

Parameters:

label - the new label for the left side of compare/merge viewers

getLeftLabel

public String getLeftLabel(Object element)

Returns the label for the left hand side of compare/merge viewers. This label is typically shown in the title of the left side of a compare viewer.

Parameters:

element - the input object of a compare/merge viewer or null

Returns:

the label for the left hand side or null

setLeftImage

public void setLeftImage(Image image)

Sets the image to use for the left side of compare/merge viewers. The compare configuration does not automatically dispose the old image.

Parameters:

image - the new image for the left side of compare/merge viewers

getLeftImage

public Image getLeftImage(Object element)

Returns the image for the left hand side of compare/merge viewers. This image is typically shown in the title of the left side of a compare viewer.

Parameters:

element - the input object of a compare/merge viewer or null

Returns:

the image for the left hand side or null

setRightEditable

public void setRightEditable(boolean editable)

Controls whether the right side of a merge viewer is editable.

Parameters:

editable - if the value is true right side is editable

isRightEditable

public boolean isRightEditable()

Returns whether the right hand side of a merge viewer is editable.

Returns:

true if the right hand side is editable

setRightLabel

public void setRightLabel(String label)

Sets the label to use for the right side of compare/merge viewers.

Parameters:

label - the new label for the right side of compare/merge viewers

getRightLabel

public String getRightLabel(Object element)

Returns the label for the right hand side of compare/merge viewers. This label is typically shown in the title of the right side of a compare viewer.

Parameters:

element - the input object of a compare/merge viewer or null

Returns:

the label for the right hand side or null

setRightImage

public void setRightImage(Image image)

Sets the image to use for the right side of compare/merge viewers. The compare configuration does not automatically dispose the old image.

Parameters:

image - the new image for the right side of compare/merge viewers

getRightImage

public Image getRightImage(Object element)

Returns the image for the right hand side of compare/merge viewers. This image is typically shown in the title of the right side of a compare viewer.

Parameters:

element - the input object of a compare/merge viewer or null

Returns:

the image for the right hand side or null