adavid.awt
Class ImageTNodeRenderer

java.lang.Object
  |
  +--adavid.awt.ImageTNodeRenderer

public class ImageTNodeRenderer

extends java.lang.Object

implements TNodeRenderer

default tree renderer, with image

Field Summary

protected static java.awt.Dimension	dim dimension of the rendered image
static int	DIR_ONLY the modes
static int	FILES_AND_DIR the modes
static int	FILES_ONLY the modes
static ImageTNodeRenderer	INSTANCE the shared instance of this class ; shared since its only purpose is to draw an image ; I adopt here a weak programming model, namely the icons are assumed not to be modified by a process while the instance is rendering them, or updating the size information.
static java.lang.String	path$icons the path of the default icons, so that Bundle finds them
static int[]	pictx
static int[]	picty
static int	SIZE constants to draw the triangle
static java.awt.Image	TreeLeaf the icons to be drawn
static java.awt.Image	TreeLeafSelected the icons to be drawn
static java.awt.Image	TreeNode
static java.awt.Image	TreeOpen
static java.awt.Image	TreeOpenSelected
static java.awt.Image	TreeSelected

Constructor Summary

protected	ImageTNodeRenderer() protected in order not to be called directly and still allow extension
	ImageTNodeRenderer(int mode) and a configurable renderer

Method Summary

int	getHeight() the dimension taken by the rendered image and triangle ; updateDim() is assumed to be called before ; has to be done explicitely if one changes one icon
int	getWidth()
static void	lookDim(java.awt.Image img, java.awt.Dimension checkDim) update the dimension if the needed size is bigger than this dimension
void	paint(TNode c, java.awt.Graphics g, boolean isExpanded, boolean isSelected, boolean isLeaf) we render the node here: draw the icon and the triangle note that the TNode chooses the color of the triangle
static void	updateDim() update the size information of the icons

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final ImageTNodeRenderer INSTANCE

the shared instance of this class ; shared since its only purpose is to draw an image ; I adopt here a weak programming model, namely the icons are assumed not to be modified by a process while the instance is rendering them, or updating the size information. The icons should be set before. If this is not the case, it is easy to extend this class and use a "synchronized(..)" on the instance, which can serve as a lock, and use the methods of this class

FILES_AND_DIR

public static int FILES_AND_DIR

the modes

FILES_ONLY

public static int FILES_ONLY

the modes

DIR_ONLY

public static int DIR_ONLY

the modes

SIZE

public static final int SIZE

constants to draw the triangle

pictx

public static final int[] pictx

picty

public static final int[] picty

dim

protected static java.awt.Dimension dim

dimension of the rendered image

path$icons

public static java.lang.String path$icons

the path of the default icons, so that Bundle finds them

TreeLeaf

public static java.awt.Image TreeLeaf

the icons to be drawn

TreeLeafSelected

public static java.awt.Image TreeLeafSelected

the icons to be drawn

TreeNode

public static java.awt.Image TreeNode

TreeSelected

public static java.awt.Image TreeSelected

TreeOpen

public static java.awt.Image TreeOpen

TreeOpenSelected

public static java.awt.Image TreeOpenSelected

Constructor Detail

ImageTNodeRenderer

protected ImageTNodeRenderer()

protected in order not to be called directly and still allow extension

ImageTNodeRenderer

public ImageTNodeRenderer(int mode)

and a configurable renderer

Method Detail

updateDim

public static void updateDim()

update the size information of the icons

lookDim

public static void lookDim(java.awt.Image img,
                           java.awt.Dimension checkDim)

update the dimension if the needed size is bigger than this dimension

paint

public void paint(TNode c,
                  java.awt.Graphics g,
                  boolean isExpanded,
                  boolean isSelected,
                  boolean isLeaf)

we render the node here: draw the icon and the triangle note that the TNode chooses the color of the triangle

Specified by:

paint in interface TNodeRenderer

Tags copied from interface: TNodeRenderer

Parameters:

node - the node to be repainted

g - Graphics object to repaint the node

expanded - state of the node

selected - state of the node

leaf - nature of the node

getHeight

public int getHeight()

the dimension taken by the rendered image and triangle ; updateDim() is assumed to be called before ; has to be done explicitely if one changes one icon

Specified by:

getHeight in interface TNodeRenderer

Tags copied from interface: TNodeRenderer

Returns:

the height of the painted zone, icon or whatever, not the whole tree node!

getWidth

public int getWidth()

Specified by:

getWidth in interface TNodeRenderer

Tags copied from interface: TNodeRenderer

Returns:

the width of the painted zone, icon or whatever, not the whole tree node!