@Override
protected void onDraw(Canvas canvas) {
// draw the background and color wheel
canvas.drawBitmap(mBackground, mBackgroundPosition.x, mBackgroundPosition.y, null);
canvas.drawBitmap(mWheel, mWheelPosition.x, mWheelPosition.y, null);
// setup paint for the gradient filling
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setStyle(Paint.Style.FILL);
paint.setStrokeWidth(2.0f);
// create a shader that will show the range of brightness settings
float[] gradientStartColor = new float[3];
float[] gradientEndColor = new float[3];
System.arraycopy(mNewColor, 0, gradientStartColor, 0, mNewColor.length);
System.arraycopy(mNewColor, 0, gradientEndColor, 0, mNewColor.length);
gradientStartColor[2] = 1.0f;
gradientEndColor[2] = 0.0f;
Shader gradientShader =
new LinearGradient(
(float) (mWheelPosition.x + mRadius),
mWheelPosition.y,
mOuterArcRect.right,
mWheelPosition.y + mWheel.getHeight(),
Color.HSVToColor(gradientStartColor),
Color.HSVToColor(gradientEndColor),
Shader.TileMode.MIRROR);
paint.setShader(gradientShader);
canvas.drawPath(mArcPath, paint);
drawHSCrosshairs(canvas);
drawBrightnessIndicator(canvas);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (paint == null) {
paint = new Paint();
luar =
new LinearGradient(
0.f, 0.f, 0.f, this.getMeasuredHeight(), 0xffffffff, 0xff000000, TileMode.CLAMP);
}
int rgb = Color.HSVToColor(color);
Shader dalam =
new LinearGradient(0.f, 0.f, this.getMeasuredWidth(), 0.f, 0xffffffff, rgb, TileMode.CLAMP);
ComposeShader shader = new ComposeShader(luar, dalam, PorterDuff.Mode.MULTIPLY);
paint.setShader(shader);
canvas.drawRect(0.f, 0.f, this.getMeasuredWidth(), this.getMeasuredHeight(), paint);
}
int random_color() {
// return 0xFF000000 | (int) (Math.random() * (float) 0xFFFFFF); // totally random
final int COLORS = 12;
hsv[0] = irand(0, COLORS) * (360f / COLORS);
return Color.HSVToColor(hsv);
}
private void updateListener() {
if (mListener != null) {
mListener.OnColorChanged(Color.HSVToColor(mNewColor));
}
}
private int darkenColor(int color) {
float[] hsv = new float[3];
Color.colorToHSV(color, hsv);
hsv[2] *= 0.9f;
return Color.HSVToColor(hsv);
}