@Override
public boolean onTouchEvent(MotionEvent event) {
boolean update = false;
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mStartTouchPoint = new Point((int) event.getX(), (int) event.getY());
update = moveTrackersIfNeeded(event);
break;
case MotionEvent.ACTION_MOVE:
update = moveTrackersIfNeeded(event);
break;
case MotionEvent.ACTION_UP:
mStartTouchPoint = null;
update = moveTrackersIfNeeded(event);
break;
}
if (update) {
if (mListener != null) {
mListener.onColorChanged(Color.HSVToColor(mAlpha, new float[] {mHue, mSat, mVal}));
}
invalidate();
return true;
}
return super.onTouchEvent(event);
}
@Override
public boolean onTrackballEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
boolean update = false;
if (event.getAction() == MotionEvent.ACTION_MOVE) {
switch (mLastTouchedPanel) {
case PANEL_SAT_VAL:
float sat, val;
sat = mSat + x / 50f;
val = mVal - y / 50f;
if (sat < 0f) {
sat = 0f;
} else if (sat > 1f) {
sat = 1f;
}
if (val < 0f) {
val = 0f;
} else if (val > 1f) {
val = 1f;
}
mSat = sat;
mVal = val;
update = true;
break;
case PANEL_HUE:
float hue = mHue - y * 10f;
if (hue < 0f) {
hue = 0f;
} else if (hue > 360f) {
hue = 360f;
}
mHue = hue;
update = true;
break;
}
}
if (update) {
if (mListener != null) {
mListener.onColorChanged(Color.HSVToColor(mAlpha, new float[] {mHue, mSat, mVal}));
}
invalidate();
return true;
}
return super.onTrackballEvent(event);
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.new_color_panel) {
if (mListener != null) {
mListener.onColorChanged(mNewColor.getColor());
}
}
dismiss();
}
/**
* Change the color of the center which indicates the new color.
*
* @param color int of the color.
*/
public void setNewCenterColor(int color) {
mCenterNewColor = color;
mCenterNewPaint.setColor(color);
if (mCenterOldColor == 0) {
mCenterOldColor = color;
mCenterOldPaint.setColor(color);
}
if (onColorChangedListener != null) {
onColorChangedListener.onColorChanged(color);
}
invalidate();
}
public void setColor(int color, boolean callback) {
int alpha = Color.alpha(color);
int red = Color.red(color);
int blue = Color.blue(color);
int green = Color.green(color);
float[] hsv = new float[3];
Color.RGBToHSV(red, green, blue, hsv);
mAlpha = alpha;
mHue = hsv[0];
mSat = hsv[1];
mVal = hsv[2];
if (callback && mListener != null) {
mListener.onColorChanged(Color.HSVToColor(mAlpha, new float[] {mHue, mSat, mVal}));
}
invalidate();
}
