public static ScreenCoord GetTwoPointCenter(ScreenCoord src, ScreenCoord dest)
{
if (src.orientation != dest.orientation)
{
return(null);
}
return(new ScreenCoord((src.x + dest.x) / 2, (src.y + dest.y) / 2, src.orientation));
}
/*
* ScreenPoint can now work with PointSelectionActivity for easily adding point (added in 1.33)
*
* 1. Example 8-digits formatted string: 4-Aj5Gr0
* first byte: 4-Aj is for coordination (up to 2400x2400)
* second byte: 5Gr0 is for color (FF000000 ~ FFFFFFFF)
*
* char to int table
* |-------------------------------------------------------------------|
* |Decimal Value | 0 - 9 | 10 - 35 | 36 - 61 | 62 | 63 | 64 | 65 |
* |--------------------------------------------------------------------
* |Character Value | 0 - 9 | A - Z | a - z | + | - | * | / |
* |-------------------------------------------------------------------|
*
* 2. Example XML formatted string: 236,236,235,0xff,832,74,Landscape
* There is no space in string and separated by 6 commas
* There are 7 data, first 6 are numbers, last one is string
* First 4 data: 236,236,235,0xff are color
* Last 3 data: 832,74,Landscape are coordination
*/
public ScreenPoint(String formattedString)
{
int[] parsedArray = new int[8];
int unit = 66;
if (formattedString == null)
{
coord = null;
color = null;
}
else if (formattedString.Length == 8)
{ //8-digits format
for (int i = 0; i < formattedString.Length; i++)
{
char targetChar = formattedString[i];
int parsedInt = ParseFormattedChar(targetChar);
parsedArray[i] = parsedInt;
}
int coordX = parsedArray[0] * unit + parsedArray[1];
int coordY = parsedArray[2] * unit + parsedArray[3];
coord = new ScreenCoord(coordX, coordY, SO_Portrait); //in this case, we only use portrait orientation
int rawColor = parsedArray[4] * unit * unit * unit + parsedArray[5] * unit * unit + parsedArray[6] * unit + parsedArray[7];
int colorR = (rawColor >> 16) & 0xff;
int colorG = (rawColor >> 8) & 0xff;
int colorB = rawColor & 0xff;
color = new ScreenColor(colorR, colorG, colorB, 0xFF); //we force transparent value to 0xff
}
else
{ //XML format
String[] data = formattedString.Split(',');
if (data.Length == 7)
{
int r, g, b, t, x, y, o;
String orientation = data[6];
try
{
r = Int32.Parse(data[0]);
g = Int32.Parse(data[1]);
b = Int32.Parse(data[2]);
t = Int32.Parse(data[3]);
x = Int32.Parse(data[4]);
y = Int32.Parse(data[5]);
if (orientation == "Portrait" || orientation == "P" || orientation == "p" || orientation == "0")
{
o = ScreenPoint.SO_Portrait;
}
else if (orientation == "Landscape" || orientation == "L" || orientation == "l" || orientation == "1")
{
o = ScreenPoint.SO_Landscape;
}
else
{
throw new FormatException("Orientation " + orientation + " not legal");
}
coord = new ScreenCoord(x, y, o);
color = new ScreenColor((byte)(r & 0xFF), (byte)(g & 0xFF), (byte)(b & 0xFF), (byte)(t & 0xFF));
}
catch (FormatException)
{
coord = null;
color = null;
}
}
else
{
coord = null;
color = null;
}
}
}
public ScreenPoint(ScreenCoord screenCoord, ScreenColor screenColor)
{
coord = screenCoord;
color = screenColor;
}
public ScreenPoint(int r, int g, int b, int t, int x, int y, int orientation)
{
coord = new ScreenCoord(x, y, orientation);
color = new ScreenColor((byte)(r & 0xFF), (byte)(g & 0xFF), (byte)(b & 0xFF), (byte)(t & 0xFF));
}
public ScreenPoint()
{
coord = new ScreenCoord(0, 0, 0);
color = new ScreenColor((byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00);
}