| public drawText ( char arg0, int arg1, int arg2, float arg3, float arg4, android arg5 ) : void | ||
| arg0 | char | |
| arg1 | int | |
| arg2 | int | |
| arg3 | float | |
| arg4 | float | |
| arg5 | android | |
| return | void | |
void drawScene (Canvas canvas)
{
canvas.clipRect (0, 0, 100, 100);
canvas.drawColor (Color.WHITE);
mPaint.setColor (Color.RED);
canvas.drawLine (0, 0, 100, 100, mPaint);
mPaint.setColor (Color.GREEN);
canvas.drawCircle (30, 70, 30, mPaint);
mPaint.setColor (Color.BLUE);
canvas.drawText ("Clipping", 100, 30, mPaint);
}
static void drawIntoBitmap (Bitmap bm)
{
float x = bm.getWidth ();
float y = bm.getHeight ();
Canvas c = new Canvas (bm);
Paint p = new Paint ();
p.setAntiAlias (true);
p.setAlpha (0x80);
c.drawCircle (x / 2, y / 2, x / 2, p);
p.setAlpha (0x30);
p.setXfermode (new PorterDuffXfermode (PorterDuff.Mode.SRC));
p.setTextSize (60);
p.setTextAlign (Paint.Align.CENTER);
Paint.FontMetrics fm = p.getFontMetrics ();
c.drawText ("Alpha", x / 2, (y - fm.ascent) / 2, p);
}
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);
}
void drawRgn (Canvas canvas, int color, String str, Region.Op op)
{
if (str != null) {
mPaint.setColor (Color.BLACK);
canvas.drawText (str, 80, 24, mPaint);
}
Region rgn = new Region ();
rgn.set (mRect1);
rgn.op (mRect2, op);
mPaint.setColor (color);
RegionIterator iter = new RegionIterator (rgn);
Rect r = new Rect ();
canvas.translate (0, 30);
mPaint.setColor (color);
while (iter.next(r)) {
canvas.drawRect (r, mPaint);
}
drawOriginalRects (canvas, 0x80);
}
void doDraw (Canvas canvas, float[] src, float[] dst)
{
canvas.save ();
mMatrix.setPolyToPoly (src, 0, dst, 0, src.Length >> 1);
canvas.concat (mMatrix);
mPaint.setColor (Color.GRAY);
mPaint.setStyle (Paint.Style.STROKE);
canvas.drawRect (0, 0, 64, 64, mPaint);
canvas.drawLine (0, 0, 64, 64, mPaint);
canvas.drawLine (0, 64, 64, 0, mPaint);
mPaint.setColor (Color.RED);
mPaint.setStyle (Paint.Style.FILL);
// how to draw the text center on our square
// centering in X is easy... use alignment (and X at midpoint)
float x = 64 / 2;
// centering in Y, we need to measure ascent/descent first
float y = 64 / 2 - (mFontMetrics.ascent + mFontMetrics.descent) / 2;
canvas.drawText (src.Length / 2 + "", x, y, mPaint);
canvas.restore ();
}
public override void draw(Canvas canvas)
{
Rect bounds = Bounds;
int height = bounds.height();
paint.TextSize = height;
Rect textBounds = new Rect();
string textValue = icon.character().ToString();
paint.getTextBounds(textValue, 0, 1, textBounds);
int textHeight = textBounds.height();
float textBottom = bounds.top + (height - textHeight) / 2f + textHeight - textBounds.bottom;
canvas.drawText(textValue, bounds.exactCenterX(), textBottom, paint);
}
protected override void onDraw (Canvas canvas)
{
canvas.drawColor (Color.WHITE);
canvas.translate (10, 10);
canvas.save ();
for (int i = 0; i < N; i++) {
setSrcR (i);
drawSrcR (canvas, i);
canvas.translate (mSrcR.width () + 15, 0);
}
canvas.restore ();
canvas.translate (0, 100);
for (int j = 0; j < sFits.Length; j++) {
canvas.save ();
for (int i = 0; i < N; i++) {
drawFit (canvas, i, sFits [j]);
canvas.translate (mDstR.width () + 8, 0);
}
canvas.drawText (sFitLabels [j], 0, HEIGHT * 2 / 3, mLabelPaint);
canvas.restore ();
canvas.translate (0, 80);
}
}
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);
}
private void drawSample (Canvas canvas, ColorFilter filter)
{
Rect r = mDrawable.getBounds ();
float x = (r.left + r.right) * 0.5f;
float y = (r.top + r.bottom) * 0.5f - mPaintTextOffset;
mDrawable.setColorFilter (filter);
mDrawable.draw (canvas);
canvas.drawText ("Label", x + 1, y + 1, mPaint2);
canvas.drawText ("Label", x, y, mPaint);
foreach (Drawable dr in mDrawables) {
dr.setColorFilter (filter);
dr.draw (canvas);
}
}
