public class ComponentDrawable extends Object
Constructor and Description |
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ComponentDrawable()
Default Constructor.
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ComponentDrawable(JFrame peerSupply)
Creates a new ComponentDrawable with the given Frame as peer-supply.
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Modifier and Type | Method and Description |
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protected void |
cleanUp()
A helper method that performs some cleanup and disconnects the component from the AWT and the Swing-Framework to
avoid memory-leaks.
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void |
draw(Graphics2D g2,
Rectangle2D area)
Draws the component.
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Component |
getComponent()
Returns the component that should be drawn.
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Dimension |
getPreferredSize()
Returns the preferred size of the drawable.
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Dimension |
getSize()
Returns the declared size of the drawable.
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protected static Window |
getWindowAncestor(Component component)
A private helper method that locates the Window to which the component is currently added.
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boolean |
isAllowOwnPeer()
Returns, whether components are allowed to provide their own AWT-Window.
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protected boolean |
isOwnPeerConnected()
A private helper method that checks, whether the component provides an own peer.
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boolean |
isPaintSynchronized()
Returns, whether component operations will happen on the Event-Dispatcher threads.
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boolean |
isPreserveAspectRatio()
Returns true, if this drawable will preserve an aspect ratio during the drawing.
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void |
setAllowOwnPeer(boolean allowOwnPeer)
Defines, whether components are allowed to provide their own AWT-Window.
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void |
setComponent(Component component)
Defines the component that should be drawn.
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void |
setPaintSynchronized(boolean paintSynchronized)
Defines, whether component operations will happen on the Event-Dispatcher threads.
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void |
setPreserveAspectRatio(boolean preserveAspectRatio)
Defines whether the layouter should preserve the aspect ratio of the component's preferred size.
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public ComponentDrawable()
public ComponentDrawable(JFrame peerSupply)
peerSupply
- the frame that should be used as peer-source.public boolean isAllowOwnPeer()
public void setAllowOwnPeer(boolean allowOwnPeer)
allowOwnPeer
- true, if components can provide their own peers, false otherwise.public boolean isPaintSynchronized()
public void setPaintSynchronized(boolean paintSynchronized)
paintSynchronized
- true, if all operations will be done on the AWT-EventDispatcher thread, false if they should be done in
the local thread.protected final void cleanUp()
public Component getComponent()
public void setComponent(Component component)
component
- the component.public Dimension getPreferredSize()
Component.getPreferredSize()
on the given component.public Dimension getSize()
Component.getSize()
on the given component.protected final boolean isOwnPeerConnected()
protected static Window getWindowAncestor(Component component)
component
- the component for which the Window should be returned.public void setPreserveAspectRatio(boolean preserveAspectRatio)
preserveAspectRatio
- true, if the aspect ratio should be preserved, false otherwise.public boolean isPreserveAspectRatio()
public void draw(Graphics2D g2, Rectangle2D area)
g2
- the graphics device.area
- the area inside which the object should be drawn.Copyright © 2017 Hitachi Vantara. All rights reserved.