org.jhotdraw.draw

Class DrawingEditorProxy

java.lang.Object

org.jhotdraw.beans.AbstractBean

org.jhotdraw.draw.DrawingEditorProxy

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, DrawingEditor

public class DrawingEditorProxy
extends AbstractBean
implements DrawingEditor

DrawingEditorProxy. Design Patterns

Proxy
To remove the need for null-handling, AbstractTool makes use of a proxy for DrawingEditor. Subject: DrawingEditor; Proxy: DrawingEditorProxy; Client: AbstractTool.

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.jhotdraw.draw.DrawingEditor

ACTION_MAP_PROPERTY, ACTIVE_VIEW_PROPERTY, DEFAULT_ATTRIBUTE_PROPERTY_PREFIX, INPUT_MAP_PROPERTY, TOOL_PROPERTY

Constructor Summary

Constructors

Constructor and Description
DrawingEditorProxy() Creates a new instance.

Method Summary

Modifier and Type	Method and Description
void	add(DrawingView view) Adds a drawing view to the editor.
void	applyDefaultAttributesTo(Figure f) Applies the default attributes to the specified figure.
DrawingView	findView(java.awt.Container c) Finds a drawing view.
javax.swing.ActionMap	getActionMap() Gets the action map used by the tool of this drawing editor as a fall back for performing actions.
DrawingView	getActiveView() Gets the editor's active drawing view.
<T> T	getDefaultAttribute(AttributeKey<T> key) Gets a default attribute from the editor.
java.util.Map<AttributeKey,java.lang.Object>	getDefaultAttributes() Returns an immutable Map with the default attributes of this editor.
java.util.Collection<DrawingView>	getDrawingViews() Gets all drawing views associated with this editor.
DrawingView	getFocusedView()
<T> T	getHandleAttribute(AttributeKey<T> key) Gets a handle attribute from the editor.
javax.swing.InputMap	getInputMap() Sets the input map used by the tool of this drawing editor as a fall back for handling keyboard events.
DrawingEditor	getTarget() Gets the target of the proxy.
Tool	getTool() Gets the current tool.
boolean	isEnabled() Gets the enabled state of the drawing editor.
void	remove(DrawingView view) Removes a drawing view from the editor.
void	setActionMap(javax.swing.ActionMap newValue) Sets the action map used by the tool of this drawing editor as a fall back for performing actions.
void	setActiveView(DrawingView newValue) Sets the editor's active drawing view.
void	setCursor(java.awt.Cursor c) Sets the cursor on the view(s) of the drawing editor.
<T> void	setDefaultAttribute(AttributeKey<T> key, T value) Sets a default attribute of the editor.
void	setEnabled(boolean newValue) Sets the enabled state of the drawing editor.
<T> void	setHandleAttribute(AttributeKey<T> key, T value) Sets a handle attribute of the editor.
void	setInputMap(javax.swing.InputMap newValue) Sets the input map used by the tool of this drawing editor as a fall back for handling keyboard events.
void	setTarget(DrawingEditor newValue) Sets the target of the proxy.
void	setTool(Tool t) Calls deactivate on the previously active tool of this drawing editor.

Methods inherited from class org.jhotdraw.beans.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, clone, getPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jhotdraw.draw.DrawingEditor

addPropertyChangeListener, removePropertyChangeListener

Constructor Detail

DrawingEditorProxy

public DrawingEditorProxy()

Creates a new instance.

Method Detail

setTarget

public void setTarget(@Nullable
                      DrawingEditor newValue)

Sets the target of the proxy.

getTarget

@Nullable
public DrawingEditor getTarget()

Gets the target of the proxy.

add

public void add(DrawingView view)

Description copied from interface: DrawingEditor

Adds a drawing view to the editor. The editor invokes addNotify on the view, and it registers its tool as an event listener on the view.

Specified by:

add in interface DrawingEditor

remove

public void remove(DrawingView view)

Description copied from interface: DrawingEditor

Removes a drawing view from the editor. The editor invokes removeNotify on the view, and it unregisters its tool on the view.

Specified by:

remove in interface DrawingEditor

getDrawingViews

public java.util.Collection<DrawingView> getDrawingViews()

Description copied from interface: DrawingEditor

Gets all drawing views associated with this editor.

Specified by:

getDrawingViews in interface DrawingEditor

getActiveView

public DrawingView getActiveView()

Description copied from interface: DrawingEditor

Gets the editor's active drawing view. This can be null, if the editor has no views.

Specified by:

getActiveView in interface DrawingEditor

setActiveView

public void setActiveView(DrawingView newValue)

Description copied from interface: DrawingEditor

Sets the editor's active drawing view. This can be set to null, if the editor has no views.

Specified by:

setActiveView in interface DrawingEditor

getFocusedView

@Nullable
public DrawingView getFocusedView()

setTool

public void setTool(Tool t)

Description copied from interface: DrawingEditor

Calls deactivate on the previously active tool of this drawing editor. Calls activate on the provided tool. Forwards all mouse, mouse moation and keyboard events that occur on the DrawingView to the provided tool.

This is a bound property.

Specified by:

setTool in interface DrawingEditor

getTool

public Tool getTool()

Description copied from interface: DrawingEditor

Gets the current tool.

This is a bound property.

Specified by:

getTool in interface DrawingEditor

setCursor

public void setCursor(java.awt.Cursor c)

Description copied from interface: DrawingEditor

Sets the cursor on the view(s) of the drawing editor.

Specified by:

setCursor in interface DrawingEditor

findView

public DrawingView findView(java.awt.Container c)

Description copied from interface: DrawingEditor

Finds a drawing view. This is used by Tool to identify the view of which it has received an event.

Specified by:

findView in interface DrawingEditor

setDefaultAttribute

public <T> void setDefaultAttribute(AttributeKey<T> key,
                                    T value)

Description copied from interface: DrawingEditor

Sets a default attribute of the editor. The default attribute will be used by creation tools, to create a new figure.

Fires a property change event with the name of the attribute key, and the prefix "defaultAttribute.".

Specified by:

setDefaultAttribute in interface DrawingEditor

getDefaultAttribute

public <T> T getDefaultAttribute(AttributeKey<T> key)

Description copied from interface: DrawingEditor

Gets a default attribute from the editor. The default attribute will be used by creation tools, to create a new figure.

Specified by:

getDefaultAttribute in interface DrawingEditor

applyDefaultAttributesTo

public void applyDefaultAttributesTo(Figure f)

Description copied from interface: DrawingEditor

Applies the default attributes to the specified figure.

Specified by:

applyDefaultAttributesTo in interface DrawingEditor

getDefaultAttributes

public java.util.Map<AttributeKey,java.lang.Object> getDefaultAttributes()

Description copied from interface: DrawingEditor

Returns an immutable Map with the default attributes of this editor.

Specified by:

getDefaultAttributes in interface DrawingEditor

setEnabled

public void setEnabled(boolean newValue)

Description copied from interface: DrawingEditor

Sets the enabled state of the drawing editor. This is a bound property.

Specified by:

setEnabled in interface DrawingEditor

isEnabled

public boolean isEnabled()

Description copied from interface: DrawingEditor

Gets the enabled state of the drawing editor.

Specified by:

isEnabled in interface DrawingEditor

setHandleAttribute

public <T> void setHandleAttribute(AttributeKey<T> key,
                                   T value)

Description copied from interface: DrawingEditor

Sets a handle attribute of the editor. The default attribute will be used by creation tools, to create a new figure.

Specified by:

setHandleAttribute in interface DrawingEditor

Parameters:

key - AttributeKey.

value - Attribute value.

getHandleAttribute

public <T> T getHandleAttribute(AttributeKey<T> key)

Description copied from interface: DrawingEditor

Gets a handle attribute from the editor. The default attribute will be used by creation tools, to create a new figure.

Specified by:

getHandleAttribute in interface DrawingEditor

Parameters:

key - AttributeKey.

Returns:

If the handle attribute has been set, returns the previously set value. If the handle attribute has not been set, returns key.getDefaultValue().

setInputMap

public void setInputMap(javax.swing.InputMap newValue)

Description copied from interface: DrawingEditor

Sets the input map used by the tool of this drawing editor as a fall back for handling keyboard events.

This is a bound property.

Specified by:

setInputMap in interface DrawingEditor

getInputMap

public javax.swing.InputMap getInputMap()

Description copied from interface: DrawingEditor

Sets the input map used by the tool of this drawing editor as a fall back for handling keyboard events.

Tools use the input map of the drawing editor to determine what to do when a key was pressed that the tool can not handle.

This is a bound property.

Specified by:

getInputMap in interface DrawingEditor

setActionMap

public void setActionMap(javax.swing.ActionMap newValue)

Description copied from interface: DrawingEditor

Sets the action map used by the tool of this drawing editor as a fall back for performing actions.

This is a bound property.

Specified by:

setActionMap in interface DrawingEditor

getActionMap

public javax.swing.ActionMap getActionMap()

Description copied from interface: DrawingEditor

Gets the action map used by the tool of this drawing editor as a fall back for performing actions.

Tools use the action map of the drawing editor to determine what to do when an action needs to be invoked from the InputMap of the drawing editor.

This is a bound property.

Specified by:

getActionMap in interface DrawingEditor