private Bitmap tintImage(Bitmap image, Bitmap image2, KrollDict args) {
String col = args.optString("color", "");
String mod1 = args.optString("modeColor", "multiply");
String mod2 = args.optString("modeImage", "multiply");
Boolean grad = args.optBoolean("vignette", false);
if (image != null) {
Mode filterMode1 = getFilter(mod1);
Mode filterMode2 = getFilter(mod2);
int width = image.getWidth();
int height = image.getHeight();
Bitmap workingBitmap = Bitmap.createScaledBitmap(image, width, height, true);
Bitmap mutableBitmap = workingBitmap.copy(Bitmap.Config.ARGB_8888, true);
Canvas canvas = new Canvas(mutableBitmap);
Bitmap resultBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas2 = new Canvas(resultBitmap);
// add second image
if (image2 != null) {
Paint Compose = new Paint();
Compose.setXfermode(
new PorterDuffXfermode(filterMode2)); // KAI: fixed error in the original code
canvas.drawBitmap(image2, 0, 0, Compose);
}
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
// add color filter
if (col != "") {
PorterDuffColorFilter cf =
new PorterDuffColorFilter(
Color.parseColor(col), filterMode1); // KAI: fixed error in the original code
paint.setColorFilter(cf);
}
// gradient
if (grad) {
int[] Colors = {0x00000000, 0xFF000000};
float[] ColorPosition = {0.10f, 0.99f};
RadialGradient gradient =
new RadialGradient(
width / 2,
height / 2,
width - width / 2,
Colors,
ColorPosition,
android.graphics.Shader.TileMode.CLAMP);
paint.setDither(true);
paint.setShader(gradient);
}
canvas2.drawBitmap(mutableBitmap, 0, 0, paint);
return resultBitmap;
}
return null;
}
public TiGradientDrawable(View view, KrollDict properties) {
super(new RectShape());
// Determine which type of gradient is being used.
// Supported types are 'linear' and 'radial'.
String type = properties.optString("type", "linear");
if (type.equals("linear")) {
gradientType = GradientType.LINEAR_GRADIENT;
} else if (type.equals("radial")) {
gradientType = GradientType.RADIAL_GRADIENT;
// TODO: Add support for radial gradients.
// Android's RadialGradient only supports a single circle.
// We need to figure out how to support two circle gradients
// as specified by the HTML Canvas specification.
return;
} else {
throw new IllegalArgumentException("Invalid gradient type. Must be linear or radial.");
}
// Load the 'startPoint' property which defines the start of the gradient.
Object startPointObject = properties.get("startPoint");
if (startPointObject instanceof HashMap) {
startPoint = new TiPoint((HashMap) startPointObject, 0, 0);
}
// Load the 'endPoint' property which defines the end of the gradient.
// Note: this is only used for linear gradient since Android does not
// support an ending circle for radial gradients.
Object endPointObject = properties.get("endPoint");
if (endPointObject instanceof HashMap) {
endPoint = new TiPoint((HashMap) endPointObject, 0, 1);
}
startRadius = TiConvert.toTiDimension(properties, "startRadius", TiDimension.TYPE_UNDEFINED);
if (startRadius == null) {
startRadius = DEFAULT_RADIUS;
}
Object colors = properties.get("colors");
if (!(colors instanceof Object[])) {
Log.w(LCAT, "Android does not support gradients without colors.");
throw new IllegalArgumentException("Must provide an array of colors.");
}
loadColors((Object[]) colors);
this.view = view;
setShaderFactory(new GradientShaderFactory());
}
