protected override void onDraw (Canvas canvas)
{
canvas.drawColor (unchecked((int)0xFFDDDDDD));
Paint paint = new Paint ();
paint.setAntiAlias (true);
paint.setStyle (Paint.Style.STROKE);
paint.setStrokeWidth (3);
paint.setStyle (Paint.Style.FILL);
RectF r = new RectF ();
float t, x, y;
t = GetAnimScalar (25, 500);
canvas.translate (320, 240);
for (int i = 0; i < 35; i++) {
paint.setColor (unchecked((int)0xFFF00FF0 - i * 0x04000000));
double step = Math.PI / (55 - i);
double angle = t * step;
x = (20 + i * 5) * (float)Math.Sin (angle);
y = (20 + i * 5) * (float)Math.Cos (angle);
r.set (x, y, x + 10, y + 10);
canvas.drawRect (r, paint);
}
}
static void test_alphagradients (Canvas canvas)
{
canvas.translate (20, 10);
RectF r = new RectF (10, 10, 410, 30);
Paint p = new Paint (), p2 = new Paint ();
p2.setStyle (Paint.Style.STROKE);
using (Shader shader = setgrad (r, 0xFF00FF00, 0x0000FF00))
p.setShader (shader);
canvas.drawRect (r, p);
canvas.drawRect (r, p2);
r.offset (0, r.height () + 4);
using (Shader shader = setgrad(r, 0xFF00FF00, 0x00000000))
p.setShader (shader);
canvas.drawRect (r, p);
canvas.drawRect (r, p2);
r.offset (0, r.height () + 4);
using (Shader shader = setgrad(r, 0xFF00FF00, 0x00FF0000))
p.setShader (shader);
canvas.drawRect (r, p);
canvas.drawRect (r, p2);
}
protected override void onDraw (Canvas canvas)
{
canvas.drawColor (unchecked((int)0xFFDDDDDD));
Paint paint = new Paint ();
paint.setAntiAlias (true);
paint.setStyle (Paint.Style.STROKE);
paint.setStrokeWidth (3);
paint.setStyle (Paint.Style.FILL);
RectF r = new RectF (10, 10, 110, 110);
for (int i = 0; i < 256; ++i) {
canvas.translate (1, 1);
paint.setColor ((int)(0xFF000000 + i * 0x00010000));
canvas.drawRect (r, paint);
}
}
protected override void onDraw(Canvas canvas)
{
canvas.drawColor(Color.YELLOW);
int width = canvas.getWidth();
int height = canvas.getHeight();
Paint paint = new Paint();
paint.setColor(Color.RED);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(10);
canvas.drawCircle(width / 2, height / 2, height / 3, paint);
Paint inner = new Paint();
paint.setColor(Color.GREEN);
paint.setStyle(Paint.Style.FILL);
canvas.drawCircle(width / 2, height / 2, height / 3 - 10, inner);
Paint text = new Paint();
text.setTextSize(20);
canvas.drawText("I am a Xobot Monkey!", width / 8, height / 8, text);
}
public PathEffects (Context context)
: base (context)
{
mPaint = new Paint (Paint.ANTI_ALIAS_FLAG);
mPaint.setStyle (Paint.Style.STROKE);
mPaint.setStrokeWidth (6);
mPath = makeFollowPath ();
mEffects = new PathEffect[6];
mColors = new int[] {
Color.BLACK, Color.RED, Color.BLUE,
Color.GREEN, Color.MAGENTA, Color.BLACK
};
}
public Arcs (Context context)
: base (context)
{
mPaints = new Paint[4];
mUseCenters = new bool[4];
mOvals = new RectF[4];
mPaints [0] = new Paint ();
mPaints [0].setAntiAlias (true);
mPaints [0].setStyle (Paint.Style.FILL);
mPaints [0].setColor (unchecked((int)0x88FF0000));
mUseCenters [0] = false;
mPaints [1] = new Paint (mPaints [0]);
mPaints [1].setColor (unchecked((int)0x8800FF00));
mUseCenters [1] = true;
mPaints [2] = new Paint (mPaints [0]);
mPaints [2].setStyle (Paint.Style.STROKE);
mPaints [2].setStrokeWidth (4);
mPaints [2].setColor (unchecked((int)0x880000FF));
mUseCenters [2] = false;
mPaints [3] = new Paint (mPaints [2]);
mPaints [3].setColor (unchecked((int)0x88888888));
mUseCenters [3] = true;
mBigOval = new RectF (40, 10, 280, 250);
mOvals [0] = new RectF (10, 270, 70, 330);
mOvals [1] = new RectF (90, 270, 150, 330);
mOvals [2] = new RectF (170, 270, 230, 330);
mOvals [3] = new RectF (250, 270, 310, 330);
mFramePaint = new Paint ();
mFramePaint.setAntiAlias (true);
mFramePaint.setStyle (Paint.Style.STROKE);
mFramePaint.setStrokeWidth (0);
// AddTimer (50);
}
protected override void onDraw (Canvas canvas)
{
canvas.drawColor (unchecked((int)0xFFDDDDDD));
Paint paint = new Paint ();
paint.setAntiAlias (true);
paint.setStyle (Paint.Style.STROKE);
paint.setStrokeWidth (10);
EmbossMaskFilter mf = new EmbossMaskFilter (new float[] { 1, 1, 1 }, 128, 16 * 2, 4);
paint.setMaskFilter (mf);
mf.Dispose ();
// paint.setMaskFilter(new SkEmbossMaskFilter(fLight, SkIntToScalar(4)))->unref();
// paint.setShader(new SkColorShader(SK_ColorBLUE))->unref();
paint.setDither (true);
canvas.drawCircle (50, 50, 30, paint);
paint.Dispose ();
}
///**
// * Instantiates a new circular seek bar.
// *
// * @param context
// * the context
// * @param attrs
// * the attrs
// * @param defStyle
// * the def style
// */
//public CircularSeekBar(Context context, AttributeSet attrs, int defStyle) {
// //super(context, attrs, defStyle);
// mContext = context;
// //initDrawable();
//}
///**
// * Instantiates a new circular seek bar.
// *
// * @param context
// * the context
// * @param attrs
// * the attrs
// */
//public CircularSeekBar(Context context, AttributeSet attrs) {
// //super(context, attrs);
// mContext = context;
// //initDrawable();
//}
/**
* Instantiates a new circular seek bar.
*
* @param context
* the context
*/
public CircularSeekBar(Context context) {
//super(context);
mContext = context;
circleColor = new Paint();
innerColor = new Paint();
circleRing = new Paint();
circleColor.setColor(Color.parseColor("#ff33b5e5")); // Set default
// progress
// color to holo
// blue.
innerColor.setColor(Color.BLACK); // Set default background color to
// black
circleRing.setColor(Color.GRAY);// Set default background color to Gray
circleColor.setAntiAlias(true);
innerColor.setAntiAlias(true);
circleRing.setAntiAlias(true);
circleColor.setStrokeWidth(5);
innerColor.setStrokeWidth(5);
circleRing.setStrokeWidth(5);
circleColor.setStyle(Paint.Style.FILL);
//initDrawable();
}
protected override void onDraw (Canvas canvas)
{
canvas.drawColor (Color.WHITE);
Paint labelP = new Paint (Paint.ANTI_ALIAS_FLAG);
labelP.setTextAlign (Paint.Align.CENTER);
Paint paint = new Paint ();
paint.setFilterBitmap (false);
canvas.translate (15, 35);
int x = 0;
int y = 0;
for (int i = 0; i < sModes.Length; i++) {
// draw the border
paint.setStyle (Paint.Style.STROKE);
paint.setShader (null);
canvas.drawRect (x - 0.5f, y - 0.5f,
x + W + 0.5f, y + H + 0.5f, paint);
// draw the checker-board pattern
paint.setStyle (Paint.Style.FILL);
paint.setShader (mBG);
canvas.drawRect (x, y, x + W, y + H, paint);
// draw the src/dst example into our offscreen bitmap
int sc = canvas.saveLayer (x, y, x + W, y + H, null,
Canvas.MATRIX_SAVE_FLAG |
Canvas.CLIP_SAVE_FLAG |
Canvas.HAS_ALPHA_LAYER_SAVE_FLAG |
Canvas.FULL_COLOR_LAYER_SAVE_FLAG |
Canvas.CLIP_TO_LAYER_SAVE_FLAG);
canvas.translate (x, y);
canvas.drawBitmap (mDstB, 0, 0, paint);
paint.setXfermode (sModes [i]);
canvas.drawBitmap (mSrcB, 0, 0, paint);
paint.setXfermode (null);
canvas.restoreToCount (sc);
// draw the label
canvas.drawText (sLabels [i],
x + W / 2, y - labelP.getTextSize () / 2, labelP);
x += W + 10;
// wrap around when we've drawn enough for one row
if ((i % ROW_MAX) == ROW_MAX - 1) {
x = 0;
y += H + 30;
}
}
}
protected override void onDraw(Canvas canvas)
{
Paint paint = new Paint();
paint.setStyle(Paint.Style.STROKE);
paint.setColor(Color.RED);
paint.setTextSize(30);
canvas.drawText(text, 10, 60, paint);
base.onDraw(canvas);
}
