private void BtnNextDiff_Click(object sender, EventArgs e)
{
if (mDiffList.Count > 0)
{
if (mCurrentDiffElt < mDiffList.Count - 1)
{
DiffElt elt = mDiffList[mCurrentDiffElt];
TB_Input.Select(elt.SelStart1, elt.SelLength1);
TB_Output.Select(elt.SelStart2, elt.SelLength2);
TB_Input.SelectionBullet = false;
TB_Output.SelectionBullet = false;
mCurrentDiffElt++;
elt = mDiffList[mCurrentDiffElt];
TB_Input.Select(elt.SelStart1, elt.SelLength1);
TB_Output.Select(elt.SelStart2, elt.SelLength2);
TB_Input.SelectionBullet = true;
TB_Output.SelectionBullet = true;
TB_Output.ScrollToCaret();
TB_Input.ScrollToCaret();
}
}
}
private void ShowDiff(string data1, string data2, string diffResult)
{
TB_Input.Text = string.Empty;
TB_Output.Text = string.Empty;
mCurrentDiffElt = 0;
mDiffList.Clear();
string[] tsData1 = data1.Split('\n');
string[] tsData2 = data2.Split('\n');
string[] tsDiffResult = diffResult.Split('\n');
int iDiff = 0;
int iData1 = 0;
int iData2 = 0;
int pos1 = 0;
int pos2 = 0;
while (iDiff < tsDiffResult.Length)
{
string item = tsDiffResult[iDiff++].Trim();
if (item.StartsWith(">") ||
item.StartsWith("<") ||
item.StartsWith("-") ||
item.StartsWith(@"\") ||
item == string.Empty)
{
continue;
}
int start1 = -1;
int end1 = -1;
int start2 = -1;
int end2 = -1;
char diffCase = ' ';
if (item.IndexOf('a') > -1)
{
//new lines in data2
diffCase = 'a';
}
if (item.IndexOf('d') > -1)
{
//lines deleted in data2
diffCase = 'd';
}
if (item.IndexOf('c') > -1)
{
//lines changed between data1 and data2
diffCase = 'c';
}
string[] tabTmp = item.Split(diffCase);
string[] tab1 = tabTmp[0].Split(',');
start1 = Int32.Parse(tab1[0]);
end1 = start1;
if (tab1.Length > 1)
{
end1 = Int32.Parse(tab1[1]);
}
string[] tab2 = tabTmp[1].Split(',');
start2 = Int32.Parse(tab2[0]);
end2 = start2;
if (tab2.Length > 1)
{
end2 = Int32.Parse(tab2[1]);
}
int selstart1 = 0;
while (iData1 < end1)
{
if (iData1 == start1 - 1)
{
selstart1 = pos1;
}
pos1 += tsData1[iData1].Length + 1;
TB_Input.AppendText(tsData1[iData1++] + Environment.NewLine);
}
int selstart2 = 0;
while (iData2 < end2)
{
if (iData2 == start2 - 1)
{
selstart2 = pos2;
}
pos2 += tsData2[iData2].Length + 1;
TB_Output.AppendText(tsData2[iData2++] + Environment.NewLine);
}
Color color = Color.White;
switch (diffCase)
{
case 'a':
if (TB_Input.Lines.Count() > 0)
{
//selstart1 += TB_Output.Lines[TB_Input.Lines.Count()].Length + 1;
selstart1 += TB_Input.Lines[TB_Input.Lines.Count() - 2].Length + 1;
}
for (int i = 0; i < (end2 - start2 + 1); i++)
{
string text = new string(' ', TB_Output.Lines[Math.Max(0, TB_Input.Lines.Count() - 1)].Length) + Environment.NewLine;
pos1 += text.Length - 1;
TB_Input.AppendText(text);
}
color = Color.LightBlue;
break;
case 'd':
if (TB_Output.Lines.Count() > 0)
{
//selstart2 += TB_Input.Lines[TB_Output.Lines.Count()].Length +1;
selstart2 += TB_Output.Lines[TB_Output.Lines.Count() - 2].Length + 1;
}
for (int i = 0; i < (end1 - start1 + 1); i++)
{
string text = new string(' ', TB_Input.Lines[Math.Max(0, TB_Output.Lines.Count() - 1)].Length) + Environment.NewLine;
pos2 += text.Length - 1;
TB_Output.AppendText(text);
}
color = Color.LightPink;
break;
case 'c':
int t1 = end1 - start1 + 1;
int t2 = end2 - start2 + 1;
if (t1 > t2)
{
//selstart2 += TB_Input.Lines[TB_Output.Lines.Count() - 1].Length;
for (int i = 0; i < t1 - t2; i++)
{
string text = new string(' ', TB_Input.Lines[Math.Max(0, TB_Output.Lines.Count() - 1)].Length) + Environment.NewLine;
pos2 += text.Length - 1;
TB_Output.AppendText(text);
}
}
else if (t2 > t1)
{
//selstart1 += TB_Output.Lines[TB_Input.Lines.Count() - 1].Length;
for (int i = 0; i < t2 - t1; i++)
{
string text = new string(' ', TB_Output.Lines[Math.Max(0, TB_Input.Lines.Count() - 1)].Length) + Environment.NewLine;
pos1 += text.Length - 1;
TB_Input.AppendText(text);
}
}
color = Color.LightGreen;
break;
}
TB_Input.Select(selstart1, pos1 - selstart1);
TB_Input.SelectionBackColor = color;
TB_Output.Select(selstart2, pos2 - selstart2);
TB_Output.SelectionBackColor = color;
mDiffList.Add(new DiffElt(selstart1, pos1 - selstart1, selstart2, pos2 - selstart2));
if (diffCase == 'c')
{
int localSelStart1 = selstart1;
int localSelStart2 = selstart2;
string sel1 = TB_Input.SelectedText;
string sel2 = TB_Output.SelectedText;
for (int j = 0; j < sel1.Length; j++)
{
if (j < sel2.Length)
{
if (sel1[j] != sel2[j])
{
TB_Input.Select(selstart1 + j, 1);
TB_Input.SelectionColor = Color.White;
TB_Input.SelectionBackColor = Color.Green;
TB_Output.Select(selstart2 + j, 1);
TB_Output.SelectionColor = Color.White;
TB_Output.SelectionBackColor = Color.Green;
}
}
else
{
TB_Input.Select(selstart1 + j, 1);
TB_Input.SelectionColor = Color.White;
TB_Input.SelectionBackColor = Color.Green;
}
}
if (sel2.Length > sel1.Length)
{
TB_Output.Select(selstart2 + sel1.Length, sel2.Length - sel1.Length);
TB_Output.SelectionColor = Color.White;
TB_Output.SelectionBackColor = Color.Green;
}
}
}
for (int j = iData1; j < tsData1.Length; j++)
{
TB_Input.AppendText(tsData1[j] + Environment.NewLine);
}
for (int j = iData2; j < tsData2.Length; j++)
{
TB_Output.AppendText(tsData2[j] + Environment.NewLine);
}
if (mDiffList.Count > 0)
{
DiffElt elt = mDiffList[0];
TB_Input.Select(elt.SelStart1, elt.SelLength1);
TB_Output.Select(elt.SelStart2, elt.SelLength2);
TB_Input.SelectionBullet = true;
TB_Output.SelectionBullet = true;
}
}