public void draw() {
Canvas canvas = surfaceHolder.lockCanvas();
try {
synchronized (surfaceHolder) {
canvas.drawColor(Color.WHITE);
if (canvasGrid != null) {
canvasGrid.draw(canvas);
}
if (canvasTrigger != null && triggerEnabled) {
canvasTrigger.draw(canvas);
}
if (canvasSignal != null) {
canvasSignal.draw(canvas);
}
if (canvasMeasure != null && meassureEnabled) {
canvasMeasure.draw(canvas);
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (canvas != null) {
surfaceHolder.unlockCanvasAndPost(canvas);
}
}
}
public void setMaxVoltage(double maxVoltage) {
canvasMeasure.setVoltage(maxVoltage);
canvasTrigger.setMaxVoltage(maxVoltage);
}
public void setTriggerLevel(int level) {
if (canvasTrigger != null) canvasTrigger.setTriggerLevel(level);
}