private void zoomTo(double percent) {
// Find the new resolution
// Number of point / Display Width / zoom
double res = (wave.getNbOfPoints() / (getInnerWidth() - 0.1));
if (res <= 1) res = Math.round(res - 0.2);
else if (res <= 10) res -= 2;
else res = res / (percent / 100);
setResolution(res);
}
public void draw(Graphics g) {
// backup current style
Color c = g.getColor();
Font f = g.getFont();
Shape clip = g.getClip();
// Draw Backgound
g.setColor(backgroundColor);
g.fillRect(0, 0, getWidth(), getHeight());
// g.setClip(paddingLeft, paddingRight, getWidth()-paddingLeft-paddingRight,
// getHeight()-paddingTop-paddingBottom);
// Prepare positioning
int defX = getInnerX();
int defY = getInnerY();
int defWidth = getInnerWidth();
int defHeight = getInnerHeight();
;
int half = defHeight / 2;
// Draw Half line
g.setColor(centerLineColor);
g.drawLine(defX, defY + half, defX + defWidth, defY + half);
int avgY = 0;
// int lastAvgY = 0;
if (wave != null) {
/*
* Initialise positioning
*/
int x = 0;
int y = 0;
int lastY = 0;
/*
* Y Ratio
* 255 = 100
* defHeight = x
*
* defHeight * 100 / 255 = Percent Result
* Percent Result / 100 to find the multiplicator
*/
double yRatio = Sample.getYRatio(wave, defHeight); // (double)defHeight / (double)255;
/*
* Number of point to read
*
* That depend of the resolution (point per pixel)
*/
int point2read = 1;
if (resolution > 1) point2read = (int) Math.ceil(resolution);
// Adjust start Display
int startOffset = 0;
if (xOffset > 0 && point2read > 0) startOffset = (point2read * xOffset);
else if (xOffset > 0) startOffset = xOffset;
ArrayList<SampleRange> ranges =
SampleRange.getList(wave, point2read, startOffset, point2read * defWidth);
for (int i = 0; i < ranges.size(); i++) {
SampleRange range = ranges.get(i);
// set y, min, max and averageY
y = (int) range.getAverage(1);
int min = (int) range.getMinimum(1);
int max = (int) range.getMaximum(1);
avgY = (int) range.getAverage(1);
// inverse display and resize with yRatio
y = (int) ((double) (y * -1) * yRatio);
max = (int) ((double) (max * -1) * yRatio);
min = (int) ((double) (min * -1) * yRatio);
avgY = (int) ((double) (avgY * -1) * yRatio);
// set space between point
int xSpace = 1;
if (resolution < 1) {
xSpace = (int) Math.floor(10 - (resolution * 10)) * 10;
if (xSpace < 10) xSpace = 10;
}
// draw lines
g.setColor(waveColor);
// join
if (resolution < 25)
g.drawLine(defX + x, defY + half + y, defX + x - xSpace, defY + half + lastY);
// fill
g.drawLine(defX + x, defY + half + min, defX + x, defY + half + max);
// if resolution is negative, the draw point
if (resolution < 1) {
// draw point
g.setColor(pointColor);
g.fillOval(defX + x - 2, defY + half + y - 2, 4, 4);
} else if (resolution > 1) {
// draw average
g.setColor(waveAverageColor);
if (max < 0 && min > 0) {
int avgmin, avgmax;
avgmax = avgY - ((max - avgY) / 2);
avgmin = avgY - ((min + avgY) / 2);
g.drawLine(defX + x, defY + half + avgmin, defX + x, defY + half + avgmax);
} else if (max < 1) g.drawLine(defX + x, defY + half + min, defX + x, defY + half + avgY);
else if (min > 0) g.drawLine(defX + x, defY + half + max, defX + x, defY + half + avgY);
// save Average
// lastAvgY = avgY;
}
// save y
lastY = y;
// add xSpace to x
x += xSpace;
}
}
// restore saved style
g.setClip(clip);
g.setColor(c);
g.setFont(f);
}
/** @param resolution the resolution to set */
public void setResolution(double newResolution) {
this.resolution = newResolution;
if (this.resolution < 0.1) this.resolution = 0.1;
if (this.resolution > wave.getData().getDataSize() / 30)
this.resolution = wave.getData().getDataSize() / 30;
}