// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2009 Novell, Inc.
//
// Authors:
// Carlos Alberto Cortez (calberto.cortez@gmail.com)
//
using System;
using System.Drawing;
using System.Collections;
using System.Collections.Specialized;
namespace System.Windows.Forms{
internal class ClipboardData {
ListDictionary source_data; // Source in its different formats, if any
string plain_text_source; // Cached source as plain-text string
Image image_source; // Cached source as image
internal object Item; // Object on the clipboard
internal ArrayList Formats; // list of formats available in the clipboard
internal bool Retrieving; // true if we are requesting an item
internal bool Enumerating; // true if we are enumerating through all known types
internal XplatUI.ObjectToClipboard Converter;
public ClipboardData ()
{
source_data = new ListDictionary ();
}
public void ClearSources ()
{
source_data.Clear ();
plain_text_source = null;
image_source = null;
}
public void AddSource (int type, object source)
{
// Try to detect plain text, based on the old behaviour of XplatUIX11, which usually assigns
// -1 as the type when a string is stored in the Clipboard
if (source is string && (type == DataFormats.GetFormat (DataFormats.Text).Id || type == -1))
plain_text_source = source as string;
else if (source is Image)
image_source = source as Image;
source_data [type] = source;
}
public object GetSource (int type)
{
return source_data [type];
}
public string GetPlainText ()
{
return plain_text_source;
}
public string GetRtfText ()
{
DataFormats.Format format = DataFormats.GetFormat (DataFormats.Rtf);
if (format == null)
return null; // FIXME - is RTF not supported on any system?
return (string)GetSource (format.Id);
}
public Image GetImage ()
{
return image_source;
}
public bool IsSourceText {
get {
return plain_text_source != null;
}
}
public bool IsSourceImage {
get {
return image_source != null;
}
}
}
}
|