protected internal override void onDraw(android.graphics.Canvas canvas)
{
base.onDraw(canvas);
bool changed = mChanged;
if (changed)
{
mChanged = false;
}
int availableWidth = mRight - mLeft;
int availableHeight = mBottom - mTop;
int x = availableWidth / 2;
int y = availableHeight / 2;
android.graphics.drawable.Drawable dial = mDial;
int w = dial.getIntrinsicWidth();
int h = dial.getIntrinsicHeight();
bool scaled = false;
if (availableWidth < w || availableHeight < h)
{
scaled = true;
float scale = System.Math.Min((float)availableWidth / (float)w, (float)availableHeight
/ (float)h);
canvas.save();
canvas.scale(scale, scale, x, y);
}
if (changed)
{
dial.setBounds(x - (w / 2), y - (h / 2), x + (w / 2), y + (h / 2));
}
dial.draw(canvas);
canvas.save();
canvas.rotate(mHour / 12.0f * 360.0f, x, y);
android.graphics.drawable.Drawable hourHand = mHourHand;
if (changed)
{
w = hourHand.getIntrinsicWidth();
h = hourHand.getIntrinsicHeight();
hourHand.setBounds(x - (w / 2), y - (h / 2), x + (w / 2), y + (h / 2));
}
hourHand.draw(canvas);
canvas.restore();
canvas.save();
canvas.rotate(mMinutes / 60.0f * 360.0f, x, y);
android.graphics.drawable.Drawable minuteHand = mMinuteHand;
if (changed)
{
w = minuteHand.getIntrinsicWidth();
h = minuteHand.getIntrinsicHeight();
minuteHand.setBounds(x - (w / 2), y - (h / 2), x + (w / 2), y + (h / 2));
}
minuteHand.draw(canvas);
canvas.restore();
if (scaled)
{
canvas.restore();
}
}
public override void draw(android.graphics.Canvas canvas, android.graphics.Paint
paint)
{
canvas.save();
canvas.scale(mScaleX, mScaleY);
canvas.drawPath(mPath, paint);
canvas.restore();
}
/// <summary>Apply translation to the canvas that is necessary to draw the content.</summary>
/// <remarks>Apply translation to the canvas that is necessary to draw the content.</remarks>
public virtual void translateCanvas(android.graphics.Canvas canvas)
{
if (this.applicationScale == 1.5f)
{
float tinyOffset = 2.0f / (3 * 255);
canvas.translate(tinyOffset, tinyOffset);
}
canvas.scale(this.applicationScale, this.applicationScale);
}
public virtual void draw(android.graphics.Canvas canvas)
{
if (mDrawable == null)
{
return;
}
canvas.save(android.graphics.Canvas.MATRIX_SAVE_FLAG);
canvas.translate(mTranslationX, mTranslationY);
canvas.scale(mScaleX, mScaleY);
canvas.translate(-0.5f * getWidth(), -0.5f * getHeight());
mDrawable.setAlpha((int)Sharpen.Util.Round(mAlpha * 255f));
mDrawable.draw(canvas);
canvas.restore();
}
/// <summary>Draw this object to the canvas using the properties defined in this class.
/// </summary>
/// <remarks>Draw this object to the canvas using the properties defined in this class.
/// </remarks>
/// <param name="canvas">canvas to draw into</param>
public virtual void draw(android.graphics.Canvas canvas)
{
float threshold = 1.0f / 256.0f;
// contribution less than 1 LSB of RGB byte
if (mAlpha <= threshold)
{
// don't bother if it won't show up
return;
}
canvas.save(android.graphics.Canvas.MATRIX_SAVE_FLAG);
canvas.translate(mX, mY);
canvas.scale(mScaleX, mScaleY);
canvas.translate(-0.5f * getWidth(), -0.5f * getHeight());
mDrawable.setAlpha((int)Sharpen.Util.Round(mAlpha * 255f));
mDrawable.draw(canvas);
canvas.restore();
}
