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java.lang.Objectjavax.microedition.lcdui.Displayable
javax.microedition.lcdui.Canvas
com.sun.perseus.demo.optimizedmenu.OptimizedSVGMenuDemo.MenuCanvas
class OptimizedSVGMenuDemo.MenuCanvas
The MenuCanvas class loads the icons found in the SVG image given at construction time and turns each icon into a bitmap.
Field Summary | |
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protected int[][] |
currentFrame
The index of the current frame for each icon |
protected int |
focusCol
The row/col index of the currently-focused icon. |
protected int |
focusRow
The row/col index of the currently-focused icon. |
protected float |
frameLength
Frame length. |
protected int |
iconHeight
The size of a single icon. |
protected int |
iconWidth
The size of a single icon. |
protected javax.microedition.lcdui.Image[][][] |
menuIcons
The menu raster images. |
protected int |
numCols
The number of icons, horizontally. |
protected int |
numFramesFocus
Number of frames in focus selection. |
protected int |
numRows
The number of icons, vertically. |
protected float |
padding
The padding ratio. |
protected javax.microedition.m2g.ScalableGraphics |
sg
The ScalableGraphics used to paint into the midp Graphics instance. |
protected javax.microedition.m2g.SVGImage |
svgImage
The SVGImage painted by the canvas. |
Fields inherited from class javax.microedition.lcdui.Canvas |
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DOWN, FIRE, GAME_A, GAME_B, GAME_C, GAME_D, KEY_NUM0, KEY_NUM1, KEY_NUM2, KEY_NUM3, KEY_NUM4, KEY_NUM5, KEY_NUM6, KEY_NUM7, KEY_NUM8, KEY_NUM9, KEY_POUND, KEY_STAR, LEFT, RIGHT, UP |
Constructor Summary | |
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protected |
OptimizedSVGMenuDemo.MenuCanvas(javax.microedition.m2g.SVGImage svgImage,
int numRows,
int numCols,
float padding,
int numFramesFocus,
float frameLength)
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Method Summary | |
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void |
keyPressed(int keyCode)
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(package private) org.w3c.dom.svg.SVGRect |
pad(org.w3c.dom.svg.SVGRect bbox)
Helper method. |
void |
paint(javax.microedition.lcdui.Graphics g)
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Methods inherited from class javax.microedition.lcdui.Canvas |
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getGameAction, getKeyCode, getKeyName, hasPointerEvents, hasPointerMotionEvents, hasRepeatEvents, hideNotify, isDoubleBuffered, keyReleased, keyRepeated, pointerDragged, pointerPressed, pointerReleased, repaint, repaint, serviceRepaints, setFullScreenMode, showNotify, sizeChanged |
Methods inherited from class javax.microedition.lcdui.Displayable |
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addCommand, getHeight, getTicker, getTitle, getWidth, isShown, removeCommand, setCommandListener, setTicker, setTitle |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected javax.microedition.m2g.SVGImage svgImage
protected javax.microedition.m2g.ScalableGraphics sg
protected int numRows
protected int numCols
protected int iconWidth
protected int iconHeight
protected int numFramesFocus
protected float frameLength
protected javax.microedition.lcdui.Image[][][] menuIcons
protected int[][] currentFrame
protected int focusRow
protected int focusCol
protected float padding
Constructor Detail |
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protected OptimizedSVGMenuDemo.MenuCanvas(javax.microedition.m2g.SVGImage svgImage, int numRows, int numCols, float padding, int numFramesFocus, float frameLength)
svgImage
- the SVGImage this canvas should paint.numRows
- the number of rows of icons.numCols
- the number of colums of icons.padding
- the margin around each icons, as a percentage of the
icon's bounding box.numFramesFocus
- the number of frames to sample in order to get
from the unselected frame to the focused state.frameLength
- the amount of time between frames.Method Detail |
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org.w3c.dom.svg.SVGRect pad(org.w3c.dom.svg.SVGRect bbox)
bbox
- the box to pad.public void keyPressed(int keyCode)
keyPressed
in class javax.microedition.lcdui.Canvas
public void paint(javax.microedition.lcdui.Graphics g)
paint
in class javax.microedition.lcdui.Canvas
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