public void UnHighlight()
{
if (Text.Length > maxHighlightTextLength)
{
return;
}
mParsing = true;
//Store cursor and scrollbars location
Win32.LockWindowUpdate(Handle);
Win32.POINT scrollPos = GetScrollPos();
int cursorLoc = SelectionStart;
//Clear formatting
string txt = Text;
Clear();
SelectionColor = ForeColor;
SelectionFont = Font;
Text = txt;
//Restore cursor and scrollbars location
SelectionStart = cursorLoc;
SetScrollPos(scrollPos);
Win32.LockWindowUpdate((IntPtr)0);
Invalidate();
mParsing = false;
}
/// <summary>
/// Sends a win32 message to get the scrollbars' position.
/// </summary>
/// <returns>a POINT structore containing horizontal and vertical scrollbar position.</returns>
private unsafe Win32.POINT GetScrollPos()
{
Win32.POINT res = new Win32.POINT();
IntPtr ptr = new IntPtr(&res);
Win32.SendMessage(Handle, Win32.EM_GETSCROLLPOS, 0, ptr);
return(res);
}
/// <summary>
/// Sends a win32 message to set scrollbars position.
/// </summary>
/// <param name="point">a POINT conatining H/Vscrollbar scrollpos.</param>
private unsafe void SetScrollPos(Win32.POINT point)
{
IntPtr ptr = new IntPtr(&point);
Win32.SendMessage(Handle, Win32.EM_SETSCROLLPOS, 0, ptr);
}
public UndoRedoInfo(string text, Win32.POINT scrollPos, int cursorLoc)
{
Text = text;
ScrollPos = scrollPos;
CursorLocation = cursorLoc;
}
/// <summary>
/// The on text changed overrided. Here we parse the text into RTF for the highlighting.
/// </summary>
/// <param name="e"></param>
protected override void OnTextChanged(EventArgs e)
{
if (mParsing)
{
return;
}
mParsing = true;
Win32.LockWindowUpdate(Handle);
base.OnTextChanged(e);
if (!mIsUndo)
{
mRedoStack.Clear();
mUndoList.Insert(0, mLastInfo);
this.LimitUndo();
mLastInfo = new UndoRedoInfo(Text, GetScrollPos(), SelectionStart);
}
//Save scroll bar an cursor position, changeing the RTF moves the cursor and scrollbars to top positin
Win32.POINT scrollPos = GetScrollPos();
int cursorLoc = SelectionStart;
//Created with an estimate of how big the stringbuilder has to be...
StringBuilder sb = new
StringBuilder((int)(Text.Length * 1.5 + 150));
//Adding RTF header
sb.Append(@"{\rtf1\fbidis\ansi\ansicpg1255\deff0\deflang1037{\fonttbl{");
//Font table creation
int fontCounter = 0;
Hashtable fonts = new Hashtable();
AddFontToTable(sb, Font, ref fontCounter, fonts);
foreach (HighlightDescriptor hd in mHighlightDescriptors)
{
if ((hd.Font != null) && !fonts.ContainsKey(hd.Font.Name))
{
AddFontToTable(sb, hd.Font, ref fontCounter, fonts);
}
}
sb.Append("}\n");
//ColorTable
sb.Append(@"{\colortbl ;");
Hashtable colors = new Hashtable();
int colorCounter = 1;
AddColorToTable(sb, ForeColor, ref colorCounter, colors);
AddColorToTable(sb, BackColor, ref colorCounter, colors);
foreach (HighlightDescriptor hd in mHighlightDescriptors)
{
if (!colors.ContainsKey(hd.Color))
{
AddColorToTable(sb, hd.Color, ref colorCounter, colors);
}
}
//Parsing text
sb.Append("}\n").Append(@"\viewkind4\uc1\pard\ltrpar");
SetDefaultSettings(sb, colors, fonts);
char[] sperators = mSeperators.GetAsCharArray();
//Replacing "\" to "\\" for RTF...
string[] lines = Text.Replace("\\", "\\\\").Replace("{", "\\{").Replace("}", "\\}").Split('\n');
for (int lineCounter = 0; lineCounter < lines.Length; lineCounter++)
{
if (lineCounter != 0)
{
AddNewLine(sb);
}
string line = lines[lineCounter];
string[] tokens = mCaseSesitive ? line.Split(sperators) : line.ToUpper().Split(sperators);
if (tokens.Length == 0)
{
sb.Append(line);
AddNewLine(sb);
continue;
}
int tokenCounter = 0;
for (int i = 0; i < line.Length;)
{
char curChar = line[i];
if (mSeperators.Contains(curChar))
{
sb.Append(curChar);
i++;
}
else
{
string curToken = tokens[tokenCounter++];
bool bAddToken = true;
foreach (HighlightDescriptor hd in mHighlightDescriptors)
{
string compareStr = mCaseSesitive ? hd.Token : hd.Token.ToUpper();
bool match = false;
//Check if the highlight descriptor matches the current toker according to the DescriptoRecognision property.
switch (hd.DescriptorRecognition)
{
case DescriptorRecognition.WholeWord:
if (curToken == compareStr)
{
match = true;
}
break;
case DescriptorRecognition.StartsWith:
if (curToken.StartsWith(compareStr))
{
match = true;
}
break;
case DescriptorRecognition.Contains:
if (curToken.IndexOf(compareStr) != -1)
{
match = true;
}
break;
}
if (!match)
{
//If this token doesn't match chech the next one.
continue;
}
//printing this token will be handled by the inner code, don't apply default settings...
bAddToken = false;
//Set colors to current descriptor settings.
SetDescriptorSettings(sb, hd, colors, fonts);
//Print text affected by this descriptor.
switch (hd.DescriptorType)
{
case DescriptorType.Word:
sb.Append(line.Substring(i, curToken.Length));
SetDefaultSettings(sb, colors, fonts);
i += curToken.Length;
break;
case DescriptorType.ToEOL:
sb.Append(line.Remove(0, i));
i = line.Length;
SetDefaultSettings(sb, colors, fonts);
break;
case DescriptorType.ToCloseToken:
while ((line.IndexOf(hd.CloseToken, i) == -1) && (lineCounter < lines.Length))
{
sb.Append(line.Remove(0, i));
lineCounter++;
if (lineCounter < lines.Length)
{
AddNewLine(sb);
line = lines[lineCounter];
i = 0;
}
else
{
i = line.Length;
}
}
if (line.IndexOf(hd.CloseToken, i) != -1)
{
sb.Append(line.Substring(i, line.IndexOf(hd.CloseToken, i) + hd.CloseToken.Length - i));
line = line.Remove(0, line.IndexOf(hd.CloseToken, i) + hd.CloseToken.Length);
tokenCounter = 0;
tokens = mCaseSesitive ? line.Split(sperators) : line.ToUpper().Split(sperators);
SetDefaultSettings(sb, colors, fonts);
i = 0;
}
break;
}
break;
}
if (bAddToken)
{
//Print text with default settings...
sb.Append(line.Substring(i, curToken.Length));
i += curToken.Length;
}
}
}
}
// System.Diagnostics.Debug.WriteLine(sb.ToString());
Rtf = sb.ToString();
//Restore cursor and scrollbars location.
SelectionStart = cursorLoc;
mParsing = false;
SetScrollPos(scrollPos);
Win32.LockWindowUpdate((IntPtr)0);
Invalidate();
if (mAutoCompleteShown)
{
if (mFilterAutoComplete)
{
SetAutoCompleteItems();
SetAutoCompleteSize();
SetAutoCompleteLocation(false);
}
SetBestSelectedAutoCompleteItem();
}
}
public UndoRedoInfo(string text, Win32.POINT scrollPos, int cursorLoc)
{
Text = text;
ScrollPos = scrollPos;
CursorLocation = cursorLoc;
}
/// <summary>
/// Sends a win32 message to get the scrollbars' position.
/// </summary>
/// <returns>a POINT structore containing horizontal and vertical scrollbar position.</returns>
private unsafe Win32.POINT GetScrollPos()
{
Win32.POINT res = new Win32.POINT();
IntPtr ptr = new IntPtr(&res);
Win32.SendMessage(Handle, Win32.EM_GETSCROLLPOS, 0, ptr);
return res;
}
public void Highlight()
{
if (Text.Length > maxHighlightTextLength)
{
return;
}
mParsing = true;
m_FontHeader.Length = 0;
m_FontStyles.Clear();
//Store cursor and scrollbars location
Win32.LockWindowUpdate(Handle);
Win32.POINT scrollPos = GetScrollPos();
int cursorLoc = SelectionStart;
StringBuilder sbBody = new StringBuilder();
try // nenecham to kvuli blbemu zvyraznovani spadnut, neee?
{
//Font table creation
FontNameIndex fonts = new FontNameIndex();
//Adding RTF header - FIX
m_FontHeader.Append(@"{\rtf1\fbidis\ansi\ansicpg1255\deff0\deflang1037");
Hashtable colors = AddColorTable(m_FontHeader);
m_FontHeader.Append("\n{\\fonttbl");
//sb.Append(@"{\rtf1\fbidis\ansi\ansicpg1255\deff0\deflang1037{\fonttbl{");
//we do not need the counter, the Count-property of Font-index will work.
//int fontCounter = 0;
//AddFontToTable(sb, Font, ref fontCounter, fonts);
//Add default font.
AddFontToTable(m_FontHeader, Font, fonts);
//this adds the defaultfont to the style definitions
m_FontStyles.GetFontStyle(Font);
//Tweak: Only load fonts that are used...
//foreach (HighlightDescriptor hd in mHighlightDescriptors)
//{
// if (hd.Font != null)
// {
// if (!fonts.ContainsKey(hd.Font))
// {
// AddFontToTable(sb, hd.Font, ref fontCounter, fonts);
// }
// }
//}
//Do not close the header, we'll do that after all the fonts are added.
// sbHeader.Append("}\n");
//Parsing text
sbBody.Append(@"\viewkind4\uc1\pard\ltrpar").Append('\n');
//this is why we added the default font allready
SetDefaultSettings(sbBody, colors, fonts);
m_SeperatorCharArray = mSeperators.GetAsCharArray();
//Replacing "\" to "\\" for RTF...
string sCurrentText = Text;
string[] lines = sCurrentText.Replace("\\", "\\\\").Replace("{", "\\{").Replace("}", "\\}").Split('\n');
//will be used to determine the text to be formatted
StringBuilder sbSubText = new StringBuilder();
#region RtfBodyGeneration
#region for (int lineCounter = 0; lineCounter < lines.Length; lineCounter++)
for (int lineCounter = 0; lineCounter < lines.Length; lineCounter++)
{
if (lineCounter != 0)
{
AddNewLine(sbBody);
}
string line = lines[lineCounter];
string[] tokens = mCaseSensitive ? line.Split(m_SeperatorCharArray) : line.ToUpper().Split(m_SeperatorCharArray);
if (tokens.Length == 0)
{
AddUnicode(sbBody, line);
AddNewLine(sbBody);
continue;
}
int tokenCounter = 0;
#region for (int i = 0; i < line.Length; )
for (int i = 0; i < line.Length;)
{
char curChar = line[i];
if (mSeperators.Contains(curChar))
{
sbBody.Append(curChar);
i++;
}
else
{
if (tokenCounter >= tokens.Length)
{
break;
}
string curToken = tokens[tokenCounter++];
bool bAddToken = true;
#region foreach (HighlightDescriptor hd in mHighlightDescriptors)
foreach (HighlightDescriptor hd in mHighlightDescriptors)
{
string compareStr = mCaseSensitive ? hd.Token : hd.Token.ToUpper();
bool match = false;
//Check if the highlight descriptor matches the current toker according to the DescriptoRecognision property.
#region switch (hd.DescriptorType)
switch (hd.DescriptorRecognition)
{
case DescriptorRecognition.RegEx:
continue;
case DescriptorRecognition.WholeWord:
if (curToken == compareStr)
{
match = true;
}
break;
case DescriptorRecognition.StartsWith:
if (curToken.StartsWith(compareStr))
{
match = true;
}
break;
case DescriptorRecognition.Contains:
if (curToken.IndexOf(compareStr) != -1)
{
match = true;
}
break;
}
if (!match)
{
//If this token doesn't match chech the next one.
continue;
}
#endregion switch (hd.DescriptorType)
//printing this token will be handled by the inner code, don't apply default settings...
bAddToken = false;
//Set colors to current descriptor settings.
//Open a "block", this we will close after adding the text to the body
sbBody.Append('{');
SetDescriptorSettings(sbBody, hd, colors, fonts);
//Improvement for readability instead of formatting the text in the
//switch, just determine the text to be formatted, and format it after the swich.
//the result is just one call to SetDefaultSettings, which is encsulated in FormatText
//for better font support (another improvement).
string sSubText = "";
//Print text affected by this descriptor.
#region switch (hd.DescriptorType)
switch (hd.DescriptorType)
{
case DescriptorType.Word:
//Will be added to the rtf after the switch
sSubText = line.Substring(i, curToken.Length);
i += curToken.Length;
break;
case DescriptorType.ToEOW:
int dummy;
sSubText = GetWordBounsOnCharIndex(line, i, out dummy, out i);
break;
case DescriptorType.ToEOL:
//Will be added to the rtf after the switch
sSubText = line.Remove(0, i);
i = line.Length;
break;
case DescriptorType.ToCloseToken:
{
//we have multiple itterations, so clear it first:
sbSubText.Length = 0;
//determine endtoken, add all encountered text to subtext
int closeStart = i + hd.Token.Length;
while ((line.IndexOf(hd.CloseToken, closeStart) == -1) && (lineCounter < lines.Length))
{
//Will be added to the rtf after the switch
sbSubText.Append(line.Remove(0, i));
lineCounter++;
if (lineCounter < lines.Length)
{
AddNewLine(sbSubText);
line = lines[lineCounter];
i = closeStart = 0;
}
else
{
i = closeStart = line.Length;
}
}
int closeIndex = line.IndexOf(hd.CloseToken, closeStart);
if (closeIndex != -1)
{
//Will be added to the rtf after the switch
sbSubText.Append(line.Substring(i, closeIndex + hd.CloseToken.Length - i));
line = line.Remove(0, closeIndex + hd.CloseToken.Length);
tokenCounter = 0;
tokens = mCaseSensitive ? line.Split(m_SeperatorCharArray) : line.ToUpper().Split(m_SeperatorCharArray);
i = 0;
}
sSubText = sbSubText.ToString();
}
break;
}
#endregion switch (hd.DescriptorType)
//now that sSubText has a value (what do we want to format), format it.
//Add the text to the RTF
AddUnicode(sbBody, sSubText);
//Close the "block" since the text we wanted to format, is now in the body.
sbBody.Append('}');
//this ends all the styles that were applied in the SetDescriptorSettings,
//returning all formatting to the default
SetDefaultSettings(sbBody, colors, fonts);
break;
}
#endregion foreach (HighlightDescriptor hd in mHighlightDescriptors)
if (bAddToken)
{
//Print text with default settings...
AddUnicode(sbBody, (line.Substring(i, curToken.Length)));
i += curToken.Length;
}
}
}
#endregion for (int i = 0; i < line.Length; )
}
#endregion for (int lineCounter = 0; lineCounter < lines.Length; lineCounter++)
#endregion
//we might have added fonts to the header, which means the header is not closed yet. close it:
m_FontHeader.Append("\n}\n");
ApplyRTF(m_FontHeader, sbBody);
PerformRegEx(sCurrentText);
}
#if DEBUG
catch (Exception exc)
{
System.Diagnostics.Debug.Fail(exc.Message, exc.StackTrace);
}
#else
catch { }
#endif
//Restore cursor and scrollbars location.
SelectionStart = cursorLoc;
SelectionLength = 0;
SetScrollPos(scrollPos);
Win32.LockWindowUpdate((IntPtr)0);
Invalidate();
mParsing = false;
}
/// <summary>
/// Sends a win32 message to set scrollbars position.
/// </summary>
/// <param name="point">a POINT conatining H/Vscrollbar scrollpos.</param>
private void SetScrollPos(Win32.POINT point)
{
Win32.SendMessage(Handle, Win32.EM_SETSCROLLPOS, 0, ref point);
}
/// <summary>
/// replace the current word of the cursor with the one from the AutoComplete form and closes it.
/// </summary>
/// <returns>If the operation was succesful</returns>
//private bool AcceptAutoCompleteItem()
//{
// //if (mAutoCompleteForm.SelectedItem == null)
// {
// return false;
// }
// int curTokenStartIndex;
// int curTokenEndIndex;
// string curTokenString = GetSelectedWordBounds(Text, out curTokenStartIndex, out curTokenEndIndex);
// ReplaceText(curTokenStartIndex, curTokenEndIndex, mAutoCompleteForm.SelectedItem);
// HideAutoCompleteForm();
// return true;
//}
/// <summary>
/// Finds the and sets the best matching token as the selected item in the AutoCompleteForm.
/// </summary>
//private void SetBestSelectedAutoCompleteItem()
//{
// int curTokenStartIndex;
// int curTokenEndIndex;
// string curTokenString = GetSelectedWordBounds(Text, out curTokenStartIndex, out curTokenEndIndex);
// if ((mAutoCompleteForm.SelectedItem != null) &&
// mAutoCompleteForm.SelectedItem.ToUpper().StartsWith(curTokenString))
// {
// return;
// }
// int matchingChars = -1;
// string bestMatchingToken = null;
// foreach (string item in mAutoCompleteForm.Items)
// {
// bool isWholeItemMatching = true;
// for (int i = 0; i < Math.Min(item.Length, curTokenString.Length); i++)
// {
// if (char.ToUpper(item[i]) != char.ToUpper(curTokenString[i]))
// {
// isWholeItemMatching = false;
// if (i - 1 > matchingChars)
// {
// matchingChars = i;
// bestMatchingToken = item;
// break;
// }
// }
// }
// if (isWholeItemMatching &&
// (Math.Min(item.Length, curTokenString.Length) > matchingChars))
// {
// matchingChars = Math.Min(item.Length, curTokenString.Length);
// bestMatchingToken = item;
// }
// }
// if (bestMatchingToken != null)
// {
// mAutoCompleteForm.SelectedIndex = mAutoCompleteForm.Items.IndexOf(bestMatchingToken);
// }
//}
/// <summary>
/// Sets the items for the AutoComplete form.
/// </summary>
//private void SetAutoCompleteItems()
//{
// mAutoCompleteForm.Items.Clear();
// string filterString = "";
// if (mFilterAutoComplete)
// {
// int curTokenStartIndex;
// int curTokenEndIndex;
// filterString = GetSelectedWordBounds(Text, out curTokenStartIndex, out curTokenEndIndex);
// }
// foreach (HighlightDescriptor hd in mHighlightDescriptors)
// {
// if (hd.Token.ToUpper().StartsWith(filterString) && hd.UseForAutoComplete)
// {
// mAutoCompleteForm.Items.Add(hd.Token);
// }
// }
// mAutoCompleteForm.UpdateView();
//}
/// <summary>
/// Sets the size. the size is limited by the MaxSize property in the form itself.
/// </summary>
//private void SetAutoCompleteSize()
//{
// mAutoCompleteForm.Height = Math.Min(
// Math.Max(mAutoCompleteForm.Items.Count, 1) * mAutoCompleteForm.ItemHeight + 4,
// mAutoCompleteForm.MaximumSize.Height);
//}
/// <summary>
/// closes the AutoCompleteForm.
/// </summary>
//private void HideAutoCompleteForm()
//{
// mAutoCompleteForm.Visible = false;
// mAutoCompleteShown = false;
//}
/// <summary>
/// Sets the location of the AutoComplete form, maiking sure it's on the screen where the cursor is.
/// </summary>
/// <param name="moveHorizontly">determines wheather or not to move the form horizontly.</param>
//private void SetAutoCompleteLocation(bool moveHorizontly)
//{
// Point cursorLocation = GetPositionFromCharIndex(SelectionStart);
// //Screen screen = Screen.FromPoint(cursorLocation);
// //make it show op on the proper monitor.
// Screen screen = Screen.FromPoint(PointToScreen(cursorLocation)); // FIX
// Point optimalLocation = new Point(PointToScreen(cursorLocation).X - 15, (int)(PointToScreen(cursorLocation).Y + Font.Size * 2 + 2));
// Rectangle desiredPlace = new Rectangle(optimalLocation, mAutoCompleteForm.Size);
// desiredPlace.Width = 152;
// if (desiredPlace.Left < screen.Bounds.Left)
// {
// desiredPlace.X = screen.Bounds.Left;
// }
// if (desiredPlace.Right > screen.Bounds.Right)
// {
// desiredPlace.X -= (desiredPlace.Right - screen.Bounds.Right);
// }
// if (desiredPlace.Bottom > screen.Bounds.Bottom)
// {
// desiredPlace.Y = cursorLocation.Y - 2 - desiredPlace.Height;
// }
// if (!moveHorizontly)
// {
// desiredPlace.X = mAutoCompleteForm.Left;
// }
// mAutoCompleteForm.Bounds = desiredPlace;
//}
/// <summary>
/// Shows the Autocomplete form.
/// </summary>
//public void ShowAutoComplete()
//{
// SetAutoCompleteItems();
// SetAutoCompleteSize();
// SetAutoCompleteLocation(true);
// mIgnoreLostFocus = true;
// mAutoCompleteForm.Visible = true;
// SetBestSelectedAutoCompleteItem();
// mAutoCompleteShown = true;
// Focus();
// mIgnoreLostFocus = false;
//}
#endregion
#region Scrollbar positions functions
/// <summary>
/// Sends a win32 message to get the scrollbars' position.
/// </summary>
/// <returns>a POINT structore containing horizontal and vertical scrollbar position.</returns>
private Win32.POINT GetScrollPos()
{
Win32.POINT res = new Win32.POINT();
Win32.SendMessage(Handle, Win32.EM_GETSCROLLPOS, 0, ref res);
return(res);
}
