public CustomPaintTextBox(TextBoxBase clientTextBox, SpellChecker checker)
{
//Set up the CustomPaintTextBox
this.clientTextBox = clientTextBox;
this.mySpellChecker = checker;
//Create a bitmap with the same dimensions as the textbox
myBitmap = new Bitmap(clientTextBox.Width, clientTextBox.Height);
//Create the graphics object from this bitmpa...this is where we will draw the lines to start with
bufferGraphics = Graphics.FromImage(this.myBitmap);
bufferGraphics.Clip = new Region(clientTextBox.ClientRectangle);
//Get the graphics object for the textbox. We use this to draw the bufferGraphics
textBoxGraphics = Graphics.FromHwnd(clientTextBox.Handle);
//Assign a handle for this class and set it to the handle for the textbox
this.AssignHandle(clientTextBox.Handle);
//We also need to make sure we update the handle if the handle for the textbox changes
//This occurs if wordWrap is turned off for a RichTextBox
clientTextBox.HandleCreated += TextBoxBase_HandleCreated;
//We need to add a handler to change the clip rectangle if the textBox is resized
clientTextBox.ClientSizeChanged += TextBoxBase_ClientSizeChanged;
//this.disposedValue = false;
}
protected override void toolStripButtonSpellCheck_Click(object sender, EventArgs e)
{
string localeId = null;
if (LookupISO_3_1_Codes.ContainsKey(curLangCode))
{
localeId = LookupISO_3_1_Codes[curLangCode];
}
else if (LookupISO_3_1_Codes.ContainsKey(curLangCode.Substring(0, 3)))
{
localeId = LookupISO_3_1_Codes[curLangCode.Substring(0, 3)];
}
if (localeId == null)
{
MessageBox.Show("Need to add an entry in Data/ISO639-1.xml file.");
return;
}
sp = new SpellChecker(this.textBox1, localeId);
if (this.toolStripButtonSpellCheck.Checked)
{
sp.EnableSpellCheck();
}
else
{
sp.DisableSpellCheck();
}
this.textBox1.Refresh();
}
// IDisposable
protected virtual void Dispose(bool disposing)
{
if (!this.disposedValue & disposing)
{
if (disposing)
{
// TODO: dispose managed state (managed objects).
if (clientTextBox != null)
{
this.ReleaseHandle();
clientTextBox.Invalidate();
clientTextBox.HandleCreated -= TextBoxBase_HandleCreated;
clientTextBox.ClientSizeChanged -= TextBoxBase_ClientSizeChanged;
clientTextBox.Dispose();
clientTextBox = null;
}
if (myBitmap != null)
{
myBitmap.Dispose();
myBitmap = null;
}
if (textBoxGraphics != null)
{
textBoxGraphics.Dispose();
textBoxGraphics = null;
}
if (bufferGraphics != null)
{
bufferGraphics.Dispose();
bufferGraphics = null;
}
if (mySpellChecker != null)
{
mySpellChecker = null;
}
}
// TODO: free unmanaged resources (unmanaged objects) and override Finalize() below.
// TODO: set large fields to null.
}
this.disposedValue = true;
}
