Examples with RectF android.graphics.RectF used on opensource projects

Example 91 with RectF

use of android.graphics.RectF in project ZI by yixia.

the class ColorPickerView method alphaToPoint.

private Point alphaToPoint(int alpha) {
    final RectF rect = mAlphaRect;
    final float width = rect.width();
    Point p = new Point();
    p.x = (int) (width - (alpha * width / 0xff) + rect.left);
    p.y = (int) rect.top;
    return p;
}

Example 92 with RectF

use of android.graphics.RectF in project ZI by yixia.

the class ColorPickerView method pointToAlpha.

private int pointToAlpha(int x) {
    final RectF rect = mAlphaRect;
    final int width = (int) rect.width();
    if (x < rect.left) {
        x = 0;
    } else if (x > rect.right) {
        x = width;
    } else {
        x = x - (int) rect.left;
    }
    return 0xff - (x * 0xff / width);
}

Example 93 with RectF

use of android.graphics.RectF in project ZI by yixia.

the class ColorPickerView method drawSatValPanel.

private void drawSatValPanel(Canvas canvas) {
    final RectF rect = mSatValRect;
    if (BORDER_WIDTH_PX > 0) {
        mBorderPaint.setColor(mBorderColor);
        canvas.drawRect(mDrawingRect.left, mDrawingRect.top, rect.right + BORDER_WIDTH_PX, rect.bottom + BORDER_WIDTH_PX, mBorderPaint);
    }
    if (mValShader == null) {
        mValShader = new LinearGradient(rect.left, rect.top, rect.left, rect.bottom, 0xffffffff, 0xff000000, TileMode.CLAMP);
    }
    int rgb = Color.HSVToColor(new float[] { mHue, 1f, 1f });
    mSatShader = new LinearGradient(rect.left, rect.top, rect.right, rect.top, 0xffffffff, rgb, TileMode.CLAMP);
    ComposeShader mShader = new ComposeShader(mValShader, mSatShader, PorterDuff.Mode.MULTIPLY);
    mSatValPaint.setShader(mShader);
    canvas.drawRect(rect, mSatValPaint);
    Point p = satValToPoint(mSat, mVal);
    mSatValTrackerPaint.setColor(0xff000000);
    canvas.drawCircle(p.x, p.y, PALETTE_CIRCLE_TRACKER_RADIUS - 1f * mDensity, mSatValTrackerPaint);
    mSatValTrackerPaint.setColor(0xffdddddd);
    canvas.drawCircle(p.x, p.y, PALETTE_CIRCLE_TRACKER_RADIUS, mSatValTrackerPaint);
}

Example 94 with RectF

use of android.graphics.RectF in project ZI by yixia.

the class ColorPickerView method drawHuePanel.

private void drawHuePanel(Canvas canvas) {
    final RectF rect = mHueRect;
    if (BORDER_WIDTH_PX > 0) {
        mBorderPaint.setColor(mBorderColor);
        canvas.drawRect(rect.left - BORDER_WIDTH_PX, rect.top - BORDER_WIDTH_PX, rect.right + BORDER_WIDTH_PX, rect.bottom + BORDER_WIDTH_PX, mBorderPaint);
    }
    if (mHueShader == null) {
        mHueShader = new LinearGradient(rect.left, rect.top, rect.left, rect.bottom, buildHueColorArray(), null, TileMode.CLAMP);
        mHuePaint.setShader(mHueShader);
    }
    canvas.drawRect(rect, mHuePaint);
    float rectHeight = 4 * mDensity / 2;
    Point p = hueToPoint(mHue);
    RectF r = new RectF();
    r.left = rect.left - RECTANGLE_TRACKER_OFFSET;
    r.right = rect.right + RECTANGLE_TRACKER_OFFSET;
    r.top = p.y - rectHeight;
    r.bottom = p.y + rectHeight;
    canvas.drawRoundRect(r, 2, 2, mHueTrackerPaint);
}

Example 95 with RectF

use of android.graphics.RectF in project ZI by yixia.

the class ColorPickerView method pointToHue.

private float pointToHue(float y) {
    final RectF rect = mHueRect;
    float height = rect.height();
    if (y < rect.top) {
        y = 0f;
    } else if (y > rect.bottom) {
        y = height;
    } else {
        y = y - rect.top;
    }
    return 360f - (y * 360f / height);
}