コード例 #1
0
        protected override void OnDraw(Canvas canvas)
        {
            if (sticker == null)
            {
                return;
            }
            sticker.draw(canvas);
            float[] points = PointUtils.GetBitmapPoints(sticker.getSrcImage(), sticker.getMatrix());
            float   x1     = points[0];
            float   y1     = points[1];
            float   x2     = points[2];
            float   y2     = points[3];
            float   x3     = points[4];
            float   y3     = points[5];
            float   x4     = points[6];
            float   y4     = points[7];

            if (isEdit)
            {
                canvas.DrawLine(x1, y1, x2, y2, paintEdge);
                canvas.DrawLine(x2, y2, x4, y4, paintEdge);
                canvas.DrawLine(x4, y4, x3, y3, paintEdge);
                canvas.DrawLine(x3, y3, x1, y1, paintEdge);

                rotateIcon.draw(canvas, x2, y2);
                zoomIcon.draw(canvas, x3, y3);
                removeIcon.draw(canvas, x1, y1);
            }
        }