private void ExecuteExpressionCommand()
{
LinxExpression expression;
bool editExpression = InLinxExpression(out expression);
string expressionText = (editExpression) ? "=" + expression.ExpressionText : string.Empty;
IExpression modifiedValue;
if (designerContext.EditExpression(expressionText, out modifiedValue))
{
string wrappedExpression = string.Empty;
if (!modifiedValue.IsEmpty)
{
wrappedExpression = SqlStringHandler.CreateSqlExpression(modifiedValue.GetExpression());
}
if (editExpression)
{
SegmentedDocument.Replace(expression.StartIndex, expression.EndIndex - expression.StartIndex + 1,
wrappedExpression);
}
else
{
SegmentedDocument.Replace(CaretIndex, 0, wrappedExpression);
}
}
}
public void DragOver(IDropInfo dropInfo)
{
dropInfo.Effects = DragDropEffects.None;
var draggedModel = dropInfo.Data as TemplateTreeItemViewModel;
bool isStringDraggedModel = dropInfo.Data is string;
var editor = dropInfo.VisualTarget as TextEditor;
if ((draggedModel != null || isStringDraggedModel) && editor != null)
{
TextViewPosition?position = editor.GetPositionFromPoint(dropInfo.DropPosition);
if (position.HasValue)
{
editor.CaretOffset = editor.Document.GetOffset(position.Value.Line, position.Value.Column);
if (isStringDraggedModel)
{
dropInfo.Effects = dropInfo.AllowedEffects;
}
}
else
{
editor.CaretOffset = editor.Document.TextLength;
}
if (isStringDraggedModel || SegmentedDocument.CanInsert(editor.CaretOffset, draggedModel.Template))
{
dropInfo.Effects = dropInfo.AllowedEffects;
}
editor.Focus();
}
}
internal virtual void InitialiseDocument(TextDocument textDocument)
{
SegmentedDocument = new SegmentedDocument(textDocument);
SegmentedDocument.Changed += (sender, e) =>
{
OnPropertyChanged("CaretIndex");
OnPropertyChanged("CaretInExpression");
OnPropertyChanged("TemplateAtCaret");
};
}
internal void InsertTemplate(Template template)
{
if (!CanInsert(template))
{
return;
}
int newCaretIndex = 0;
SegmentedDocument.InsertTemplate(caretIndex, template, out newCaretIndex);
caretIndex = newCaretIndex;
}
internal override void InitialiseDocument(TextDocument textDocument)
{
base.InitialiseDocument(textDocument);
if (String.IsNullOrEmpty(propertyValue))
{
SegmentedDocument.Load(serialiser.Deserialise(defaultText));
}
else
{
SegmentedDocument.Load(propertyValue);
}
}
private void OnClose()
{
SegmentedDocument.StripEditingSections();
DialogResult = true;
}
