javax.swing.RepaintManager — clojure-interop/javax.swing 1.0.5

This class manages repaint requests, allowing the number of repaints to be minimized, for example by collapsing multiple requests into a single repaint for members of a component tree.

As of 1.6 RepaintManager handles repaint requests for Swing's top level components (JApplet, JWindow, JFrame and JDialog). Any calls to repaint on one of these will call into the appropriate addDirtyRegion method.

*current-manager clj

(*current-manager c)

Return the RepaintManager for the calling thread given a Component.

c - a Component -- unused in the default implementation, but could be used by an overridden version to return a different RepaintManager depending on the Component - java.awt.Component

returns: the RepaintManager object - javax.swing.RepaintManager

*set-current-manager clj

(*set-current-manager a-repaint-manager)

Set the RepaintManager that should be used for the calling thread. aRepaintManager will become the current RepaintManager for the calling thread's thread group.

a-repaint-manager - the RepaintManager object to use - javax.swing.RepaintManager

->repaint-manager clj

(->repaint-manager)

Constructor.

Create a new RepaintManager instance. You rarely call this constructor. directly. To get the default RepaintManager, use RepaintManager.currentManager(JComponent) (normally "this").

add-dirty-region clj

(add-dirty-region this c x y w h)

Add a component in the list of components that should be refreshed. If c already has a dirty region, the rectangle (x,y,w,h) will be unioned with the region that should be redrawn.

c - Component to repaint, null results in nothing happening. - javax.swing.JComponent x - X coordinate of the region to repaint - int y - Y coordinate of the region to repaint - int w - Width of the region to repaint - int h - Height of the region to repaint - int

add-invalid-component clj

(add-invalid-component this invalid-component)

Mark the component as in need of layout and queue a runnable for the event dispatching thread that will validate the components first isValidateRoot() ancestor.

invalid-component - javax.swing.JComponent

completely-dirty? clj

(completely-dirty? this a-component)

Convenience method that returns true if aComponent will be completely painted during the next paintDirtyRegions(). If computing dirty regions is expensive for your component, use this method and avoid computing dirty region if it return true.

a-component - javax.swing.JComponent

returns: boolean

double-buffering-enabled? clj

(double-buffering-enabled? this)

Returns true if this RepaintManager is double buffered. The default value for this property may vary from platform to platform. On platforms where native double buffering is supported in the AWT, the default value will be false to avoid unnecessary buffering in Swing. On platforms where native double buffering is not supported, the default value will be true.

returns: true if this object is double buffered - boolean

get-dirty-region clj

(get-dirty-region this a-component)

Return the current dirty region for a component. Return an empty rectangle if the component is not dirty.

a-component - javax.swing.JComponent

returns: java.awt.Rectangle

get-double-buffer-maximum-size clj

(get-double-buffer-maximum-size this)

Returns the maximum double buffer size.

returns: a Dimension object representing the maximum size - java.awt.Dimension

get-offscreen-buffer clj

(get-offscreen-buffer this c proposed-width proposed-height)

Return the offscreen buffer that should be used as a double buffer with the component c. By default there is a double buffer per RepaintManager. The buffer might be smaller than (proposedWidth,proposedHeight) This happens when the maximum double buffer size as been set for the receiving repaint manager.

c - java.awt.Component proposed-width - int proposed-height - int

returns: java.awt.Image

get-volatile-offscreen-buffer clj

(get-volatile-offscreen-buffer this c proposed-width proposed-height)

Return a volatile offscreen buffer that should be used as a double buffer with the specified component c. The image returned will be an instance of VolatileImage, or null if a VolatileImage object could not be instantiated. This buffer might be smaller than (proposedWidth,proposedHeight). This happens when the maximum double buffer size has been set for this repaint manager.

c - java.awt.Component proposed-width - int proposed-height - int

returns: java.awt.Image

mark-completely-clean clj

(mark-completely-clean this a-component)

Mark a component completely clean. aComponent will not get painted during the next paintDirtyRegions() call.

a-component - javax.swing.JComponent

mark-completely-dirty clj

(mark-completely-dirty this a-component)

Mark a component completely dirty. aComponent will be completely painted during the next paintDirtyRegions() call.

a-component - javax.swing.JComponent

paint-dirty-regions clj

(paint-dirty-regions this)

Paint all of the components that have been marked dirty.

remove-invalid-component clj

(remove-invalid-component this component)

Remove a component from the list of invalid components.

component - javax.swing.JComponent

set-double-buffer-maximum-size clj

(set-double-buffer-maximum-size this d)

Set the maximum double buffer size.

d - java.awt.Dimension

set-double-buffering-enabled clj

(set-double-buffering-enabled this a-flag)

Enables or disables double buffering in this RepaintManager. CAUTION: The default value for this property is set for optimal paint performance on the given platform and it is not recommended that programs modify this property directly.

a-flag - true to activate double buffering - boolean

to-string clj

(to-string this)

Returns a string that displays and identifies this object's properties.

returns: a String representation of this object - java.lang.String

validate-invalid-components clj

(validate-invalid-components this)

Validate all of the components that have been marked invalid.