PageWidget.java 文件源码

@Override
protected void drawCurrentPageArea(Canvas canvas) {
    mPath0.reset();
    mPath0.moveTo(mBezierStart1.x, mBezierStart1.y);
    mPath0.quadTo(mBezierControl1.x, mBezierControl1.y, mBezierEnd1.x, mBezierEnd1.y);
    mPath0.lineTo(mTouch.x, mTouch.y);
    mPath0.lineTo(mBezierEnd2.x, mBezierEnd2.y);
    mPath0.quadTo(mBezierControl2.x, mBezierControl2.y, mBezierStart2.x, mBezierStart2.y);
    mPath0.lineTo(mCornerX, mCornerY);
    mPath0.close();

    canvas.save();
    canvas.clipPath(mPath0, Region.Op.XOR);
    canvas.drawBitmap(mCurPageBitmap, 0, 0, null);
    try {
        canvas.restore();
    } catch (Exception e) {

    }
}