private void frmFindText_onClosed(object sender, FormClosedEventArgs e)
{
if (!this._frmFindText.IsDisposed)
this._frmFindText.Dispose();
this._frmFindText = null;
}
//***************************************************************************
// Event Overrides
//
protected override void OnKeyDown(KeyEventArgs e)
{
//this._lastKeyPress = Keys.None;
//this._lastModifierPress = Keys.None;
//this._lastCharPos = -1;
//this._clearedText = string.Empty;
AdvRichTextBox.SelectDirection newSelDir = AdvRichTextBox.SelectDirection.None;
if (e.KeyCode == System.Windows.Forms.Keys.X && e.Modifiers == System.Windows.Forms.Keys.Control)
{
#region CTRL-X - Cut
this.Cut();
e.Handled = true;
e.SuppressKeyPress = true;
#endregion
}
if (e.KeyCode == System.Windows.Forms.Keys.V && e.Modifiers == System.Windows.Forms.Keys.Control)
{
#region CTRL-V - Paste
this.Paste();
e.Handled = true;
e.SuppressKeyPress = true;
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Z && e.Modifiers == (System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Shift))
{
#region CTRL-SHIFT-Z - Redo
this.Redo();
e.Handled = true;
e.SuppressKeyPress = true;
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Z && e.Modifiers == System.Windows.Forms.Keys.Control)
{
#region CTRL-Z - Undo
this.Undo();
e.Handled = true;
e.SuppressKeyPress = true;
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Z && e.Modifiers == System.Windows.Forms.Keys.Control)
{
#region CTRL-P - Print
this.Print(this.DocumentName);
e.Handled = true;
e.SuppressKeyPress = true;
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Delete)
{
// This key does not trigger this event. Check the 'OnPreviewKeyDown' method.
#region DELETE
//if (this.SelectionLength > 0)
//{
// // Grab the text that's about to be whacked.
// this.AddUndo(new UndoState(UndoStateType.Clear, string.Empty, this.SelectedText, this.SelectionStart));
//}
//else
//{
// // Treat it like a delete.
// if (this.SelectionStart < this.Text.Length)
// try
// { this.AddUndo(new UndoState(UndoStateType.Delete, string.Empty, this.Text.Substring(this.SelectionStart, 1), this.SelectionStart)); }
// catch { }
//}
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Back)
{
// This key does not trigger this event. Check the 'OnPreviewKeyDown' method.
#region BACKSPACE
//if (this.SelectionLength > 0)
//{
// // Grab the text that's about to be whacked.
// this.AddUndo(new UndoState(UndoStateType.Clear, string.Empty, this.SelectedText, this.SelectionStart));
//}
//else
//{
// // Treat it like a backspace.
// if (this.SelectionStart > 0)
// try
// { this.AddUndo(new UndoState(UndoStateType.Backspace, string.Empty, this.Text.Substring(this.SelectionStart - 1, 1), this.SelectionStart - 1)); }
// catch { }
//}
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.F && e.Modifiers == System.Windows.Forms.Keys.Control)
{
#region CTRL-F - Find Text
if (this._frmFindText == null || this._frmFindText.IsDisposed)
{
this.StartFind();
}
else
{
this._frmFindText.Dispose();
this._frmFindText = null;
}
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.F3)
{
#region F3 - Find Next
if (this._frmFindText != null && !this._frmFindText.IsDisposed)
this.FindNext();
else
this.StartFind();
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Shift || e.KeyCode == System.Windows.Forms.Keys.ShiftKey)
{
// Prevent these keys from being processed.
}
else if (e.KeyCode == System.Windows.Forms.Keys.Home)
{
#region HOME Key
// If the user was holding the CTRL key when they pressed home, then
// we just move to the very beginning of the document.
if (e.Control)
{
if (e.Shift)
//this.Select(0, this.SelectionStart + this.SelectionLength);
this.Select(this.SelectionStart, 0 - this.SelectionStart);
else
this.Select(0, 0);
e.Handled = true;
}
else
{
// If the user presses the "HOME" key, then we want to move the
// cursor inteligently to either the beginning of the line,
// or the beginning of the actual text.
int curLn = this.GetLineFromCharIndex(this.SelectionStart),
curPos = this.SelectionStart,
lnStart = this.GetFirstCharIndexFromLine(curLn);
// If the current line doesn't begin with any whitespace, then we
// have nothing to do here.
string lnTxt = this.Lines[curLn];
if (lnTxt.StartsWith("\t") || lnTxt.StartsWith(" "))
{
int wsCharCnt = (lnTxt.Length - lnTxt.TrimStart('\t', ' ').Length),
selLen = lnStart - (curPos + SelectionLength);
if (this.SelectionStart == (lnStart + wsCharCnt))
{
// If we're at the beginning of the text, then move to the
// first of the line.
if (e.Shift)
//this.Select(lnStart, (curPos + this.SelectionLength) - lnStart);
this.Select(curPos + this.SelectionLength, selLen);
else
this.Select(lnStart, 0);
}
else
{
// If the cursor is already at the beginning of the line,
// or anywhere else in the line, then move to the end
// of the whitespace.
if (e.Shift)
//this.Select(lnStart + wsCharCnt, (curPos - (lnStart + wsCharCnt)) + this.SelectionLength);
this.Select(curPos + this.SelectionLength, selLen + wsCharCnt);
else
this.Select(lnStart + wsCharCnt, 0);
}
newSelDir = (selLen > 0) ? AdvRichTextBox.SelectDirection.Forward : AdvRichTextBox.SelectDirection.Backword;
e.Handled = true;
}
}
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.PageUp)
{
#region PAGE-UP Key
//TODO:: Write logic to determine selection direction based on
// current selection direction and selection length.
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.PageDown)
{
#region PAGE-DOWN Key
//TODO:: Write logic to determine selection direction based on
// current selection direction and selection length.
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Up)
{
#region UP Key
//TODO:: Write logic to determine selection direction based on
// current selection direction and selection length.
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Down)
{
#region DOWN Key
//TODO:: Write logic to determine selection direction based on
// current selection direction and selection length.
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Left)
{
#region LEFT Key
//TODO:: Write logic to determine selection direction based on
// current selection direction and selection length.
#endregion
}
else if (e.KeyCode == System.Windows.Forms.Keys.Right)
{
#region RIGHT Key
//TODO:: Write logic to determine selection direction based on
// current selection direction and selection length.
#endregion
}
this._lastCharPos = this.SelectionStart;
this._clearedText = this.SelectedText;
this._lastKeyPress = e.KeyCode;
this._lastModifierPress = e.Modifiers;
this._selDir = newSelDir;
if (this.IsInputKey(e.KeyCode) && !e.Control && !e.Alt)
{
//string keyValue = this.Text.Substring(this._lastCharPos, 1);
KeysConverter kConv = new KeysConverter();
string keyValue = kConv.ConvertToString(e.KeyCode);
if (!e.Shift)
keyValue = keyValue.ToLower();
this.AddUndo(new UndoState(UndoStateType.Insert, keyValue, this._clearedText, this._lastCharPos));
}
base.OnKeyDown(e);
}
protected void StartFind()
{
this._frmFindText = new RainstormStudios.Forms.frmFindText();
this._frmFindText.FindNext += new EventHandler(this.frmFindText_onFindNext);
this._frmFindText.FormClosed += new FormClosedEventHandler(this.frmFindText_onClosed);
this._frmFindText.Show(this.FindForm());
}
