flippublic class flip extends Applet
| Fields Summary |
|---|
| Image | i | | Image | j | | Image | k | | Image | l |
| Methods Summary |
|---|
| private int[] | colFlipPixels(int[] pixels, int width, int height)
int newPixels[] = null;
if ((width*height) == pixels.length) {
newPixels = new int [width*height];
int newIndex=0;
for (int y=0;y<height;y++)
for (int x=width-1;x>=0;x--)
newPixels[newIndex++]=pixels[y*width+x];
}
return newPixels;
| | public void | init()
MediaTracker mt = new MediaTracker (this);
i = getImage (getDocumentBase(), "ora-icon.gif");
mt.addImage (i, 0);
try {
mt.waitForAll();
int width = i.getWidth(this);
int height = i. getHeight(this);
int pixels[] = new int [width * height];
PixelGrabber pg = new PixelGrabber (i, 0, 0, width, height, pixels, 0, width);
if (pg.grabPixels() && ((pg.status() & ImageObserver.ALLBITS) !=0)) {
j = createImage (new MemoryImageSource (width, height,
rowFlipPixels (pixels, width, height), 0, width));
k = createImage (new MemoryImageSource (width, height,
colFlipPixels (pixels, width, height), 0, width));
l = createImage (new MemoryImageSource (height, width,
rot90Pixels (pixels, width, height), 0, height));
}
} catch (InterruptedException e) {
e.printStackTrace();
}
| | public void | paint(java.awt.Graphics g)
g.drawImage (i, 10, 10, this); // regular
if (j != null)
g.drawImage (j, 150, 10, this); // rowFlip
if (k != null)
g.drawImage (k, 10, 60, this); // colFlip
if (l != null)
g.drawImage (l, 150, 60, this); // rot90
| | private int[] | rot90Pixels(int[] pixels, int width, int height)
int newPixels[] = null;
if ((width*height) == pixels.length) {
newPixels = new int [width*height];
int newIndex=0;
for (int x=width-1;x>=0;x--)
for (int y=0;y<height;y++)
newPixels[newIndex++]=pixels[y*width+x];
}
return newPixels;
| | private int[] | rowFlipPixels(int[] pixels, int width, int height)
int newPixels[] = null;
if ((width*height) == pixels.length) {
newPixels = new int [width*height];
int newIndex=0;
for (int y=height-1;y>=0;y--)
for (int x=width-1;x>=0;x--)
newPixels[newIndex++]=pixels[y*width+x];
}
return newPixels;
|
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