org.openjump.core.ui.plugin.view

Class InstallKeyPanPlugIn

java.lang.Object

com.vividsolutions.jump.workbench.plugin.AbstractPlugIn

org.openjump.core.ui.plugin.view.InstallKeyPanPlugIn

All Implemented Interfaces:

EnableChecked, Iconified, MultiShortcutEnabled, PlugIn, Recordable, ShortcutEnabled

public class InstallKeyPanPlugIn
extends AbstractPlugIn
implements MultiShortcutEnabled

Plug in for navigation with keyboards keys.
Navigation is as follows:
Arrows keys move the viewport.
Page down and up are zoom in and zoom out, respectively
Home key zooms in or out to full extent
Pan and zoom percentage is, by default, 20%

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	sACCEPTED_VALUES
static java.lang.String	sPAN_EAST
static java.lang.String	sPAN_NORTH
static java.lang.String	sPAN_SOUTH
static java.lang.String	sPAN_WEST
static java.lang.String	sZOOM_EXT
static java.lang.String	sZOOM_IN
static java.lang.String	sZOOM_OUT

Fields inherited from class com.vividsolutions.jump.workbench.plugin.AbstractPlugIn

shortcutKeys, shortcutModifiers

Constructor Summary

Constructors

Constructor and Description
InstallKeyPanPlugIn() Default constructor
InstallKeyPanPlugIn(double panPercentage) Creates a new plug-in with pan_percentage as pan percentage value pan_percentage The value in percent of screen size to pan/zoom.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	execute(PlugInContext context) Performs the action for this plugin.
double	getPanPercentage() Get the pan/zoom percentage, a value between 0 and 1.
PlugIn[]	getShortcutEnabledPlugins()
void	setPanPercentage(double panPercent) Set the pan percentage.

Methods inherited from class com.vividsolutions.jump.workbench.plugin.AbstractPlugIn

addParameter, createName, execute, execute, fetchShortcutEnabledPlugins, getBooleanParam, getDoubleParam, getEnableCheck, getEnableCheck, getIcon, getIcon, getIntegerParam, getName, getParameter, getParameters, getShortcutKeys, getShortcutKeyStroke, getShortcutModifiers, getStringParam, initialize, isRollingBackInvalidEdits, isShortcutEnabled, registerShortcuts, reportNothingToUndoYet, setParameters, setShortcutKeys, setShortcutModifiers, toActionListener, toString

Methods inherited from class java.lang.Object

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

Field Detail

sPAN_NORTH

public static final java.lang.String sPAN_NORTH

sPAN_EAST

public static final java.lang.String sPAN_EAST

sPAN_SOUTH

public static final java.lang.String sPAN_SOUTH

sPAN_WEST

public static final java.lang.String sPAN_WEST

sZOOM_IN

public static final java.lang.String sZOOM_IN

sZOOM_OUT

public static final java.lang.String sZOOM_OUT

sZOOM_EXT

public static final java.lang.String sZOOM_EXT

sACCEPTED_VALUES

public static final java.lang.String sACCEPTED_VALUES

Constructor Detail

InstallKeyPanPlugIn

public InstallKeyPanPlugIn()

Default constructor

InstallKeyPanPlugIn

public InstallKeyPanPlugIn(double panPercentage)

Creates a new plug-in with pan_percentage as pan percentage value pan_percentage The value in percent of screen size to pan/zoom. Accepted values are in the range 0 < percentage <= 1

Method Detail

execute

public boolean execute(PlugInContext context)
                throws java.lang.Exception

Description copied from interface: PlugIn

Performs the action for this plugin. For threaded plugins with dialogs, this method contains the code to invoke the dialog. If the user cancels the dialog, this method should return false to prevent the run method from being called.

Specified by:

execute in interface PlugIn

Overrides:

execute in class AbstractPlugIn

Returns:

true if the action completed, false if it was aborted. Used by ThreadedPlugIns to indicate that their #run method needn't be called next.

Throws:

java.lang.Exception - if a problem occurs during plug-in execution

See Also:

ThreadedPlugIn

getPanPercentage

public double getPanPercentage()

Get the pan/zoom percentage, a value between 0 and 1. Deafult is 0.25 (=25%)

setPanPercentage

public void setPanPercentage(double panPercent)

Set the pan percentage. Legal values are between greater than 0 and less than or equal to 1.0

Parameters:

panPercent - The value in percent of screen size to pan/zoom. Accepted values are in the range 0 < percentage <= 1

getShortcutEnabledPlugins

public PlugIn[] getShortcutEnabledPlugins()

Specified by:

getShortcutEnabledPlugins in interface MultiShortcutEnabled