isPointInRectangle static method

bool isPointInRectangle(
  1. double px,
  2. double py,
  3. Rect rect
)

判断点是否在矩形内部

Implementation

static bool isPointInRectangle(double px, double py, Rect rect) {
  double x1 = rect.left;
  double y1 = rect.top;
  double x2 = x1 + rect.width;
  double y2 = y1 + rect.height;
  // 先确保矩形的坐标是正确的，x1, y1 为左上角，x2, y2 为右下角
  double minX = x1 < x2 ? x1 : x2;
  double maxX = x1 > x2 ? x1 : x2;
  double minY = y1 < y2 ? y1 : y2;
  double maxY = y1 > y2 ? y1 : y2;
  // 判断点是否在矩形内
  return px >= minX && px <= maxX && py >= minY && py <= maxY;
}