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com.port80.swt.widgets
Class GraphViewIncrementalFinder  

java.lang.Object
  com.port80.swt.widgets.GraphViewIncrementalFinder

All Implemented Interfaces:

java.util.EventListener, org.eclipse.swt.events.FocusListener, org.eclipse.swt.events.KeyListener, org.eclipse.swt.events.MouseListener, org.eclipse.swt.internal.SWTEventListener

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public class GraphViewIncrementalFinder

extends java.lang.Object

implements org.eclipse.swt.events.KeyListener, org.eclipse.swt.events.MouseListener, org.eclipse.swt.events.FocusListener

An incremental find target for IGraphViewer. Replace is always disabled.

Since:

2.0

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Field Summary
private static int	CHAR           A constant representing adding a character to the find pattern
private static boolean	DEBUG
private  int	fBasePosition           The position to start the find from
private  int	fCasePosition           Index of first upper case char.
private  org.eclipse.jface.viewers.IStructuredContentProvider	fContentProvider
private  int	fCurrentIndex           The position of the last successful find
private  java.lang.Object[]	fElements
private  java.lang.StringBuffer	fFindString           The current find string
private  boolean	fForward
private  boolean	fFound           A flag indicating if last find was successful
private  boolean	fInstalled           A flag indicating listeners are installed.
private  org.eclipse.jface.viewers.ILabelProvider	fLabelProvider
private  org.eclipse.swt.events.KeyListener	fPrevKeyListener
private static java.lang.String	fSavedString
private  java.util.Stack	fStack           Index stack to backtrace when taking back characters.
private  IStatusLine	fStatusLine           The status line manager for output
private  IGraphViewer	fViewer           The text viewer to operate on
private static java.lang.String	NAME
private static int	NEXT           A constant representing a find-next operation
private static java.lang.String	PATTERN_FOUND
private static java.lang.String	PATTERN_NOTFOUND
private static int	PREVIOUS           A constant representing a find-previous operation
private static java.lang.String	PROMPT
private static java.lang.String	TAB           The string representing rendered tab
private static java.lang.Object	WRAPPED           A constant representing a wrap operation

 

Constructor Summary

GraphViewIncrementalFinder(IGraphViewer viewer, IStatusLine manager, org.eclipse.swt.events.KeyListener prev)           Creates an instance of an incremental find target.

 

Method Summary
private  void	beep()
void	beginSession(boolean forward, java.lang.String defaultString)
boolean	canPerformFind()
void	endSession()
private  java.lang.String	escapeTabs(java.lang.String string)           Translates all tab characters into a proper status line presentation.
int	findAndSelect(int start, java.lang.String findString, boolean forward, boolean caseSensitive)           Find item with the given string and select it.
private  int	findIndex(java.lang.String findString, int startPosition, boolean forward, boolean caseSensitive, boolean wrapSearch, boolean takeBack)           Retuns the offset at which the search string is found next using the given options
void	focusGained(org.eclipse.swt.events.FocusEvent e)           Sent when a control gets focus.
void	focusLost(org.eclipse.swt.events.FocusEvent e)           Sent when a control loses focus.
org.eclipse.jface.viewers.StructuredSelection	getSelection()
java.lang.String	getSelectionText()           Get text representation of the currently selected item.
private  void	install()           Installs this target.
boolean	isEditable()
void	keyPressed(org.eclipse.swt.events.KeyEvent event)           Perform increment find.
void	keyReleased(org.eclipse.swt.events.KeyEvent event)           Sent when a key is released on the system keyboard.
void	mouseDoubleClick(org.eclipse.swt.events.MouseEvent e)           Sent when a mouse button is pressed twice within the (operating system specified) double click period.
void	mouseDown(org.eclipse.swt.events.MouseEvent e)           Sent when a mouse button is pressed.
void	mouseUp(org.eclipse.swt.events.MouseEvent e)           Sent when a mouse button is released.
private  void	msgDebug(java.lang.String msg)
private  boolean	performFindNext(boolean forward, int start, boolean wrapSearch, boolean takeBack)           Returns whether the find string can be found using the given options.
private  int	popChar()           Delete a character from the find string.
private  void	pushChar(char character)           Extends the incremental search by the given character.
void	setSelection(java.lang.Object object)
private  void	statusClear()           Clears the status message and the status error message.
private  void	statusError(java.lang.String string)           Sets the status error message, clears the status message.
private  void	statusMessage(java.lang.String string)           Sets the given string as status message, clears the status error message.
private  void	uninstall()           Uninstalls itself.
private  void	updateStatus(boolean found)           Updates the status line appropriate for the indicated success.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

NAME

private static final java.lang.String NAME

See Also:

Constant Field Values

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NEXT

private static final int NEXT

A constant representing a find-next operation

See Also:

Constant Field Values

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PREVIOUS

private static final int PREVIOUS

A constant representing a find-previous operation

See Also:

Constant Field Values

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CHAR

private static final int CHAR

A constant representing adding a character to the find pattern

See Also:

Constant Field Values

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WRAPPED

private static final java.lang.Object WRAPPED

A constant representing a wrap operation

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DEBUG

private static final boolean DEBUG

See Also:

Constant Field Values

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fSavedString

private static java.lang.String fSavedString

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TAB

private static java.lang.String TAB

The string representing rendered tab

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PATTERN_NOTFOUND

private static java.lang.String PATTERN_NOTFOUND

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PATTERN_FOUND

private static java.lang.String PATTERN_FOUND

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PROMPT

private static java.lang.String PROMPT

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fViewer

private final IGraphViewer fViewer

The text viewer to operate on

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fStatusLine

private final IStatusLine fStatusLine

The status line manager for output

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fFindString

private java.lang.StringBuffer fFindString

The current find string

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fCasePosition

private int fCasePosition

Index of first upper case char. in the find string. -1 if no upper case.

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fBasePosition

private int fBasePosition

The position to start the find from

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fCurrentIndex

private int fCurrentIndex

The position of the last successful find

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fFound

private boolean fFound

A flag indicating if last find was successful

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fForward

private boolean fForward

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fInstalled

private boolean fInstalled

A flag indicating listeners are installed.

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fElements

private java.lang.Object[] fElements

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fContentProvider

private org.eclipse.jface.viewers.IStructuredContentProvider fContentProvider

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fLabelProvider

private org.eclipse.jface.viewers.ILabelProvider fLabelProvider

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fPrevKeyListener

private org.eclipse.swt.events.KeyListener fPrevKeyListener

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fStack

private java.util.Stack fStack

Index stack to backtrace when taking back characters.

Constructor Detail

GraphViewIncrementalFinder

public GraphViewIncrementalFinder(IGraphViewer viewer,
                                  IStatusLine manager,
                                  org.eclipse.swt.events.KeyListener prev)

Creates an instance of an incremental find target.

Method Detail

canPerformFind

public boolean canPerformFind()

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isEditable

public boolean isEditable()

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getSelection

public org.eclipse.jface.viewers.StructuredSelection getSelection()

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getSelectionText

public java.lang.String getSelectionText()

Get text representation of the currently selected item.

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setSelection

public void setSelection(java.lang.Object object)

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findAndSelect

public int findAndSelect(int start,
                         java.lang.String findString,
                         boolean forward,
                         boolean caseSensitive)

Find item with the given string and select it.

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beginSession

public void beginSession(boolean forward,
                         java.lang.String defaultString)

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endSession

public void endSession()

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install

private void install()

Installs this target. I.e. adds all required listeners.

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uninstall

private void uninstall()

Uninstalls itself. I.e. removes all listeners installed in install.

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performFindNext

private boolean performFindNext(boolean forward,
                                int start,
                                boolean wrapSearch,
                                boolean takeBack)

Returns whether the find string can be found using the given options.

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findIndex

private int findIndex(java.lang.String findString,
                      int startPosition,
                      boolean forward,
                      boolean caseSensitive,
                      boolean wrapSearch,
                      boolean takeBack)

Retuns the offset at which the search string is found next using the given options

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updateStatus

private void updateStatus(boolean found)

Updates the status line appropriate for the indicated success.

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keyPressed

public void keyPressed(org.eclipse.swt.events.KeyEvent event)

Perform increment find. All non-printable characters need to be escaped. TODO: escape non-printable characters.

Specified by:

keyPressed in interface org.eclipse.swt.events.KeyListener

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keyReleased

public void keyReleased(org.eclipse.swt.events.KeyEvent event)

Description copied from interface: org.eclipse.swt.events.KeyListener

Sent when a key is released on the system keyboard.

Specified by:

keyReleased in interface org.eclipse.swt.events.KeyListener

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pushChar

private void pushChar(char character)

Extends the incremental search by the given character.

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popChar

private int popChar()

Delete a character from the find string.

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beep

private void beep()

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mouseDoubleClick

public void mouseDoubleClick(org.eclipse.swt.events.MouseEvent e)

Description copied from interface: org.eclipse.swt.events.MouseListener

Sent when a mouse button is pressed twice within the (operating system specified) double click period.

Specified by:

mouseDoubleClick in interface org.eclipse.swt.events.MouseListener

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mouseDown

public void mouseDown(org.eclipse.swt.events.MouseEvent e)

Description copied from interface: org.eclipse.swt.events.MouseListener

Sent when a mouse button is pressed.

Specified by:

mouseDown in interface org.eclipse.swt.events.MouseListener

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mouseUp

public void mouseUp(org.eclipse.swt.events.MouseEvent e)

Description copied from interface: org.eclipse.swt.events.MouseListener

Sent when a mouse button is released.

Specified by:

mouseUp in interface org.eclipse.swt.events.MouseListener

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focusGained

public void focusGained(org.eclipse.swt.events.FocusEvent e)

Description copied from interface: org.eclipse.swt.events.FocusListener

Sent when a control gets focus.

Specified by:

focusGained in interface org.eclipse.swt.events.FocusListener

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focusLost

public void focusLost(org.eclipse.swt.events.FocusEvent e)

Description copied from interface: org.eclipse.swt.events.FocusListener

Sent when a control loses focus.

Specified by:

focusLost in interface org.eclipse.swt.events.FocusListener

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statusMessage

private void statusMessage(java.lang.String string)

Sets the given string as status message, clears the status error message.

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statusError

private void statusError(java.lang.String string)

Sets the status error message, clears the status message.

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statusClear

private void statusClear()

Clears the status message and the status error message.

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escapeTabs

private java.lang.String escapeTabs(java.lang.String string)

Translates all tab characters into a proper status line presentation.

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msgDebug

private void msgDebug(java.lang.String msg)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> port80 >> swt >> [ widgets overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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