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package yuku.ambilwarna;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ComposeShader;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.Shader;
import android.graphics.Shader.TileMode;
import android.util.AttributeSet;
import android.view.View;
public class AmbilWarnaSquare extends View {
Paint paint;
Shader luar;
final float[] color = { 1.f, 1.f, 1.f };
public AmbilWarnaSquare(Context context, AttributeSet attrs) {
super(context, attrs);
}
public AmbilWarnaSquare(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@SuppressLint("DrawAllocation") @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);
}
void setHue(float hue) {
color[0] = hue;
invalidate();
}
}
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