public static CCRect CCRectFromString(string pszContent)
{
CCRect result = CCRect.Zero;
do
{
if (pszContent == null)
{
break;
}
string content = pszContent;
// find the first '{' and the third '}'
int nPosLeft = content.IndexOf('{');
int nPosRight = content.IndexOf('}');
for (int i = 1; i < 3; ++i)
{
if (nPosRight == -1)
{
break;
}
nPosRight = content.IndexOf('}', nPosRight + 1);
}
if (nPosLeft == -1 || nPosRight == -1)
{
break;
}
content = content.Substring(nPosLeft + 1, nPosRight - nPosLeft - 1);
int nPointEnd = content.IndexOf('}');
if (nPointEnd == -1)
{
break;
}
nPointEnd = content.IndexOf(',', nPointEnd);
if (nPointEnd == -1)
{
break;
}
// get the point string and size string
string pointStr = content.Substring(0, nPointEnd);
string sizeStr = content.Substring(nPointEnd + 1);
//, content.Length - nPointEnd
// split the string with ','
List<string> pointInfo = new List<string>();
if (!CCUtils.SplitWithForm(pointStr, pointInfo))
{
break;
}
List<string> sizeInfo = new List<string>();
if (!CCUtils.SplitWithForm(sizeStr, sizeInfo))
{
break;
}
float x = CCUtils.CCParseFloat(pointInfo[0]);
float y = CCUtils.CCParseFloat(pointInfo[1]);
float width = CCUtils.CCParseFloat(sizeInfo[0]);
float height = CCUtils.CCParseFloat(sizeInfo[1]);
result = new CCRect(x, y, width, height);
} while (false);
return result;
}
public static bool IntersetsRect(ref CCRect rectA, ref CCRect rectB)
{
return !(rectA.MaxX < rectB.MinX || rectB.MaxX < rectA.MinX || rectA.MaxY < rectB.MinY || rectB.MaxY < rectA.MinY);
}
public bool Equals(CCRect rect)
{
return Origin.Equals(rect.Origin) && Size.Equals(rect.Size);
}
public static bool ContainsPoint(ref CCRect rect, ref CCPoint point)
{
bool bRet = false;
if (float.IsNaN(point.X))
{
point.X = 0;
}
if (float.IsNaN(point.Y))
{
point.Y = 0;
}
if (point.X >= rect.MinX && point.X <= rect.MaxX && point.Y >= rect.MinY && point.Y <= rect.MaxY)
{
bRet = true;
}
return bRet;
}
public static bool Equal(ref CCRect rect1, ref CCRect rect2)
{
return rect1.Origin.Equals(rect2.Origin) && rect1.Size.Equals(rect2.Size);
}
public bool IntersectsRect(ref CCRect rect)
{
return !(MaxX < rect.MinX || rect.MaxX < MinX || MaxY < rect.MinY || rect.MaxY < MinY);
}
public CCRect Intersection(CCRect rect)
{
if (!IntersectsRect(rect))
{
return (Zero);
}
/* +-------------+
* | |
* | +---+-----+
* +-----+---+ | | |
* | | | | | |
* | | | +---+-----+
* | | | |
* | | | |
* +-----+---+ |
* | |
* +-------------+
*/
float minx = 0, miny = 0, maxx = 0, maxy = 0;
// X
if (rect.MinX < MinX)
{
minx = MinX;
}
else if (rect.MinX < MaxX)
{
minx = rect.MinX;
}
if (rect.MaxX < MaxX)
{
maxx = rect.MaxX;
}
else if (rect.MaxX > MaxX)
{
maxx = MaxX;
}
// Y
if (rect.MinY < MinY)
{
miny = MinY;
}
else if (rect.MinY < MaxY)
{
miny = rect.MinY;
}
if (rect.MaxY < MaxY)
{
maxy = rect.MaxY;
}
else if (rect.MaxY > MaxY)
{
maxy = MaxY;
}
return new CCRect(minx, miny, maxx - minx, maxy - miny);
}
public CCRect Union(CCRect rect)
{
float minx = Math.Min(MinX, rect.MinX);
float miny = Math.Min(MinY, rect.MinY);
float maxx = Math.Max(MaxX, rect.MaxX);
float maxy = Math.Max(MaxY, rect.MaxY);
return (new CCRect(minx, miny, maxx - minx, maxy - miny));
}