private void SetModifiedFlag(TextEditorControl editor, bool flag)
{
if (IsModified(editor) != flag)
{
var p = editor.Parent;
if (IsModified(editor))
{
p.Text = p.Text.Substring(0, p.Text.Length - 1);
}
else
{
p.Text += "*";
}
}
}
private bool DoSave(TextEditorControl editor)
{
if (string.IsNullOrEmpty(editor.FileName))
{
return(DoSaveAs(editor));
}
else
{
try {
editor.SaveFile(editor.FileName);
SetModifiedFlag(editor, false);
return(true);
} catch (Exception ex) {
MessageBox.Show(ex.Message, ex.GetType().Name);
return(false);
}
}
}
private bool DoSaveAs(LempDemoPanel panel)
{
TextEditorControl editor = panel.Editor;
saveFileDialog.FileName = editor.FileName;
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
try {
editor.SaveFile(saveFileDialog.FileName);
panel.ChooseHighlighter(); // fix syntax highlighting
panel.Parent.Text = Path.GetFileName(editor.FileName);
panel.SetModifiedFlag(false);
return(true);
} catch (Exception ex) {
MessageBox.Show(ex.Message, ex.GetType().Name);
}
}
return(false);
}
private bool DoSaveAs(TextEditorControl editor)
{
saveFileDialog.FileName = editor.FileName;
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
try {
editor.SaveFile(saveFileDialog.FileName);
editor.Parent.Text = Path.GetFileName(editor.FileName);
SetModifiedFlag(editor, false);
// The syntax highlighting strategy doesn't change
// automatically, so do it manually.
editor.Document.HighlightingStrategy =
HighlightingStrategyFactory.CreateHighlightingStrategyForFile(editor.FileName);
return(true);
} catch (Exception ex) {
MessageBox.Show(ex.Message, ex.GetType().Name);
}
}
return(false);
}
/// <summary>Performs an action encapsulated in IEditAction.</summary>
/// <remarks>
/// There is an implementation of IEditAction for every action that
/// the user can invoke using a shortcut key (arrow keys, Ctrl+X, etc.)
/// The editor control doesn't provide a public funciton to perform one
/// of these actions directly, so I wrote DoEditAction() based on the
/// code in TextArea.ExecuteDialogKey(). You can call ExecuteDialogKey
/// directly, but it is more fragile because it takes a Keys value (e.g.
/// Keys.Left) instead of the action to perform.
/// <para/>
/// Clipboard commands could also be done by calling methods in
/// editor.ActiveTextAreaControl.TextArea.ClipboardHandler.
/// </remarks>
private void DoEditAction(TextEditorControl editor, ICSharpCode.TextEditor.Actions.IEditAction action)
{
if (editor != null && action != null)
{
var area = editor.ActiveTextAreaControl.TextArea;
editor.BeginUpdate();
try {
lock (editor.Document) {
action.Execute(area);
if (area.SelectionManager.HasSomethingSelected && area.AutoClearSelection /*&& caretchanged*/)
{
if (area.Document.TextEditorProperties.DocumentSelectionMode == DocumentSelectionMode.Normal)
{
area.SelectionManager.ClearSelection();
}
}
}
} finally {
editor.EndUpdate();
area.Caret.UpdateCaretPosition();
}
}
}
public void ShowFor(TextEditorControl editor, bool replaceMode)
{
Editor = editor;
_search.ClearScanRegion();
var sm = editor.ActiveTextAreaControl.SelectionManager;
if (sm.HasSomethingSelected && sm.SelectionCollection.Count == 1)
{
var sel = sm.SelectionCollection[0];
if (sel.StartPosition.Line == sel.EndPosition.Line)
{
txtLookFor.Text = sm.SelectedText;
}
else
{
_search.SetScanRegion(sel);
}
}
else
{
// Get the current word that the caret is on
Caret caret = editor.ActiveTextAreaControl.Caret;
int start = TextUtilities.FindWordStart(editor.Document, caret.Offset);
int endAt = TextUtilities.FindWordEnd(editor.Document, caret.Offset);
txtLookFor.Text = editor.Document.GetText(start, endAt - start);
}
ReplaceMode = replaceMode;
this.Owner = (Form)editor.TopLevelControl;
this.Show();
txtLookFor.SelectAll();
txtLookFor.Focus();
}
public HighlightGroup(TextEditorControl editor)
{
_editor = editor;
_document = editor.Document;
}
/// <summary>Gets whether the file in the specified editor is modified.</summary>
/// <remarks>TextEditorControl doesn't maintain its own internal modified
/// flag, so we use the '*' shown after the file name to represent the
/// modified state.</remarks>
private bool IsModified(TextEditorControl editor)
{
// TextEditorControl doesn't seem to contain its own 'modified' flag, so
// instead we'll treat the "*" on the filename as the modified flag.
return(editor.Parent.Text.EndsWith("*"));
}
private void RemoveTextEditor(TextEditorControl editor)
{
((TabControl)editor.Parent.Parent).Controls.Remove(editor.Parent);
}
