private static ImageIcon makeGrayImageIcon1(Image img) {
BufferedImage source =
new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);
Graphics g = source.createGraphics();
g.drawImage(img, 0, 0, null);
g.dispose();
ColorConvertOp colorConvert =
new ColorConvertOp(ColorSpace.getInstance(ColorSpace.CS_GRAY), null);
BufferedImage destination = colorConvert.filter(source, null);
return new ImageIcon(destination);
}
private static ImageIcon makeGrayImageIcon2(Image img) {
int w = img.getWidth(null);
int h = img.getHeight(null);
BufferedImage destination = new BufferedImage(w, h, BufferedImage.TYPE_BYTE_GRAY);
Graphics g = destination.createGraphics();
//// g.setColor(Color.WHITE);
// https://community.oracle.com/thread/1373262 Color to Grayscale to Binary
// g.fillRect(0, 0, w, h); // need to pre-fill(alpha?)
g.drawImage(img, 0, 0, null);
g.dispose();
return new ImageIcon(destination);
}
@Override
public void paintIcon(Component c, Graphics g, int x, int y) {
if (image == null) {
image = new BufferedImage(getIconWidth(), getIconHeight(), BufferedImage.TYPE_INT_ARGB);
double coef = Math.min((double) width / (double) 68, (double) height / (double) 81);
Graphics2D g2d = image.createGraphics();
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.scale(coef, coef);
paint(g2d);
g2d.dispose();
}
g.drawImage(image, x, y, null);
}
public void paint(Graphics g) {
if (big == null) {
return;
}
big.setBackground(getBackground());
big.clearRect(0, 0, w, h);
float freeMemory = (float) r.freeMemory();
float totalMemory = (float) r.totalMemory();
// .. Draw allocated and used strings ..
big.setColor(GREEN);
big.drawString(
String.valueOf((int) totalMemory / 1024) + "K allocated", 4.0f, (float) ascent + 0.5f);
usedStr = String.valueOf(((int) (totalMemory - freeMemory)) / 1024) + "K used";
big.drawString(usedStr, 4, h - descent);
// Calculate remaining size
float ssH = ascent + descent;
float remainingHeight = (float) (h - (ssH * 2) - 0.5f);
float blockHeight = remainingHeight / 10;
float blockWidth = 20.0f;
float remainingWidth = (float) (w - blockWidth - 10);
// .. Memory Free ..
big.setColor(mfColor);
int MemUsage = (int) ((freeMemory / totalMemory) * 10);
int i = 0;
for (; i < MemUsage; i++) {
mfRect.setRect(5, (float) ssH + i * blockHeight, blockWidth, (float) blockHeight - 1);
big.fill(mfRect);
}
// .. Memory Used ..
big.setColor(GREEN);
for (; i < 10; i++) {
muRect.setRect(5, (float) ssH + i * blockHeight, blockWidth, (float) blockHeight - 1);
big.fill(muRect);
}
// .. Draw History Graph ..
big.setColor(graphColor);
int graphX = 30;
int graphY = (int) ssH;
int graphW = w - graphX - 5;
int graphH = (int) remainingHeight;
graphOutlineRect.setRect(graphX, graphY, graphW, graphH);
big.draw(graphOutlineRect);
int graphRow = graphH / 10;
// .. Draw row ..
for (int j = graphY; j <= graphH + graphY; j += graphRow) {
graphLine.setLine(graphX, j, graphX + graphW, j);
big.draw(graphLine);
}
// .. Draw animated column movement ..
int graphColumn = graphW / 15;
if (columnInc == 0) {
columnInc = graphColumn;
}
for (int j = graphX + columnInc; j < graphW + graphX; j += graphColumn) {
graphLine.setLine(j, graphY, j, graphY + graphH);
big.draw(graphLine);
}
--columnInc;
if (pts == null) {
pts = new int[graphW];
ptNum = 0;
} else if (pts.length != graphW) {
int tmp[] = null;
if (ptNum < graphW) {
tmp = new int[ptNum];
System.arraycopy(pts, 0, tmp, 0, tmp.length);
} else {
tmp = new int[graphW];
System.arraycopy(pts, pts.length - tmp.length, tmp, 0, tmp.length);
ptNum = tmp.length - 2;
}
pts = new int[graphW];
System.arraycopy(tmp, 0, pts, 0, tmp.length);
} else {
big.setColor(YELLOW);
pts[ptNum] = (int) (graphY + graphH * (freeMemory / totalMemory));
for (int j = graphX + graphW - ptNum, k = 0; k < ptNum; k++, j++) {
if (k != 0) {
if (pts[k] != pts[k - 1]) {
big.drawLine(j - 1, pts[k - 1], j, pts[k]);
} else {
big.fillRect(j, pts[k], 1, 1);
}
}
}
if (ptNum + 2 == pts.length) {
// throw out oldest point
for (int j = 1; j < ptNum; j++) {
pts[j - 1] = pts[j];
}
--ptNum;
} else {
ptNum++;
}
}
g.drawImage(bimg, 0, 0, this);
}