private PDFDict SplitNode(PDFDict curr, int index, PDFDict splinter)
{
PDFDict dict1;
PDFArray array2;
int num1;
PDFArray array3;
PDFArray array4;
PDFArray array1 = (curr["Kids"] as PDFArray);
if (index == (array1.Count - 1))
{
array1.Add(splinter);
}
else
{
array1.Insert((index + 1), splinter);
}
if (array1.Count > this.mMaxKids)
{
dict1 = Library.CreateDict();
Library.CreateIndirect(dict1);
array2 = Library.CreateArray();
dict1["Kids"] = array2;
num1 = (array1.Count / 2);
while ((array1.Count > num1))
{
array2.Insert(0, array1.RemoveAt((array1.Count - 1)));
}
array3 = Library.CreateArray(2);
dict1["Limits"] = array3;
array3[0] = ((array2[0] as PDFDict)["Limits"] as PDFArray)[0];
array3[1] = ((array2[(array2.Count - 1)] as PDFDict)["Limits"] as PDFArray)[1];
array4 = Library.CreateArray(2);
array4[0] = ((array1[0] as PDFDict)["Limits"] as PDFArray)[0];
array4[1] = ((array1[(array1.Count - 1)] as PDFDict)["Limits"] as PDFArray)[1];
curr["Limits"] = array4;
return(dict1);
}
return(null);
}
private PDFDict SetItem(PDFDict curr, string index, PDFObject value)
{
bool flag1;
int num1;
PDFString text1;
PDFArray array3;
int num2;
PDFArray array4;
PDFDict dict1;
PDFArray array5;
PDFArray array6;
int num3;
PDFDict dict2;
PDFArray array7;
PDFString text2;
PDFString text3;
PDFDict dict3;
PDFArray array8;
PDFObject obj1;
PDFArray array1 = (curr["Names"] as PDFArray);
PDFArray array2 = (curr["Kids"] as PDFArray);
if (array1 != null)
{
if ((array1.Count % 2) != 0)
{
throw new InvalidOperationException("Attempt to manipulate invalid name tree");
}
flag1 = true;
for (num1 = 0; (num1 < (array1.Count / 2)); num1 += 1)
{
text1 = (array1[(2 * num1)] as PDFString);
if (text1 == null)
{
throw new InvalidOperationException("Attempt to manipulate invalid name tree");
}
if (text1.Value == index)
{
array1[((2 * num1) + 1)] = value;
return null;
}
if (string.Compare(text1.Value, index, false) > 0)
{
array1.Insert((2 * num1), value);
array1.Insert((2 * num1), PDF.O(index));
flag1 = false;
break;
}
}
if (flag1)
{
array1.Add(PDF.O(index));
array1.Add(value);
array3 = (curr["Limits"] as PDFArray);
if (array3 != null)
{
((PDFString) array3[1]).Value = index;
}
}
if ((array1.Count / 2) > this.mMaxKids)
{
num2 = (array1.Count / 2);
array4 = Library.CreateArray(0);
dict1 = Library.CreateDict();
Library.CreateIndirect(dict1);
while ((array1.Count > num2))
{
array4.Insert(0, array1.RemoveAt((array1.Count - 1)));
array4.Insert(0, array1.RemoveAt((array1.Count - 1)));
}
array5 = Library.CreateArray(1);
array5[0] = array1[0];
array5[1] = array1[(array1.Count - 2)];
curr["Limits"] = array5;
dict1["Names"] = array4;
array6 = Library.CreateArray(0);
array6[0] = array4[0];
array6[1] = array4[(array4.Count - 2)];
dict1["Limits"] = array6;
return dict1;
}
return null;
}
if (array2 != null)
{
for (num3 = 0; (num3 < array2.Count); num3 += 1)
{
dict2 = (array2[num3] as PDFDict);
if (dict2 == null)
{
throw new InvalidOperationException("Attempt to manipulate invalid name tree");
}
array7 = (dict2["Limits"] as PDFArray);
if (array7.Count != 2)
{
throw new InvalidOperationException("Attempt to manipulate invalid name tree");
}
text2 = (array7[0] as PDFString);
text3 = (array7[1] as PDFString);
if ((text2 == null) || (text3 == null))
{
throw new InvalidOperationException("Attempt to manipulate invalid name tree");
}
if (((string.Compare(index, text2.Value) < 0) || (string.Compare(index, text3.Value) < 0)) || ((num3 + 1) == array2.Count))
{
dict3 = this.SetItem(dict2, index, value);
if (string.Compare(index, text2.Value) < 0)
{
array7[0] = PDF.O(index);
}
if (dict3 != null)
{
return this.SplitNode(curr, num3, dict3);
}
return null;
}
}
}
else
{
array1 = Library.CreateArray(2);
curr["Names"] = array1;
array8 = Library.CreateArray(2);
obj1 = PDF.O(index);
array1[0] = obj1;
obj1 = obj1;
array8[1] = obj1;
array8[0] = obj1;
array1[1] = value;
}
return null;
}
private void updateArrayValue(PDFArray array, int index, PDFObject newVal)
{
array.RemoveAt(index);
array.Insert(index, newVal);
}