private bool AcceptDragData(System.Windows.IDataObject data)
{
IFileContainer dropTarget = Model as IFileContainer;
if (dropTarget == null)
{
dropTarget = Parent;
}
var draggedItem = data.GetData(MenuLayoutViewModel.DragDataFormat) as IFile;
bool accept = draggedItem != null;
if (accept)
{
accept = ShouldAcceptDraggedItem(draggedItem);
/*
* var draggedItemParent = draggedItem.Parent;
* accept = (draggedItem != this.Model);
* if (accept && (dropTarget != null))
* {
* var draggedContainer = draggedItem as IFileContainer;
* if (draggedContainer != null)
* {
* accept = !draggedContainer.ContainsChild(dropTarget) && (draggedContainer != dropTarget);
* }
* if (accept)
* {
* accept = (dropTarget.Size < FileSystemConstants.MaxItemCount) || (dropTarget == draggedItemParent);
* }
* if (accept)
* {
* int currentDepth = DepthFromRoot;
* int draggedItemDepth = draggedItem.Depth;
* if (draggedContainer != null)
* {
++draggedItemDepth; // count folders as one extra layer of depth, since they are pointless w/o containing any items
* }
* accept = currentDepth + draggedItemDepth <= FileSystemConstants.MaximumDepth;
* }
* }
*/
}
else
{
IEnumerable <ProgramDescription> draggedPrograms = data.GetData(ProgramDescriptionViewModel.DragDataFormat) as IEnumerable <ProgramDescription>;
accept = (draggedPrograms != null) && (draggedPrograms.Any() && ((draggedPrograms.Count() + dropTarget.Size) <= FileSystemConstants.MaxItemCount));
}
return(accept);
}
public static List <string[]> ParseClipboardData()
{
List <string[]> clipboardData = null;
object clipboardRawData = null;
ParseFormat parseFormat = null;
// get the data and set the parsing method based on the format
// currently works with CSV and Text DataFormats
System.Windows.IDataObject dataObj = Clipboard.GetDataObject();
if ((clipboardRawData = dataObj.GetData(DataFormats.CommaSeparatedValue)) != null)
{
parseFormat = ParseCsvFormat;
}
else if ((clipboardRawData = dataObj.GetData(DataFormats.Text)) != null)
{
parseFormat = ParseTextFormat;
}
if (parseFormat != null)
{
string rawDataStr = clipboardRawData as string;
if (rawDataStr == null && clipboardRawData is MemoryStream)
{
// cannot convert to a string so try a MemoryStream
MemoryStream ms = clipboardRawData as MemoryStream;
StreamReader sr = new StreamReader(ms);
rawDataStr = sr.ReadToEnd();
}
Debug.Assert(rawDataStr != null, string.Format("clipboardRawData: {0}, could not be converted to a string or memorystream.", clipboardRawData));
string[] rows = rawDataStr.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
if (rows != null && rows.Length > 0)
{
clipboardData = new List <string[]>();
foreach (string row in rows)
{
clipboardData.Add(parseFormat(row));
}
}
else
{
Debug.WriteLine("unable to parse row data. possibly null or contains zero rows.");
}
}
return(clipboardData);
}
private void InsertAnswerImage()
{
//获取剪切板上的图片，如果剪切板上的图片为空，则提示
System.Windows.IDataObject clip1 = System.Windows.Clipboard.GetDataObject();
bool ifCanGetClilp = clip1.GetDataPresent(typeof(System.Drawing.Bitmap));
if (true == ifCanGetClilp)
{
Bitmap clipBitMap = (Bitmap)clip1.GetData(typeof(System.Drawing.Bitmap));
String imagePath = @"../../TestCases/temp.png";
clipBitMap.Save(imagePath, System.Drawing.Imaging.ImageFormat.Png);
int QuestionID = 0;
int.TryParse(textBox4.Text, out QuestionID);
try
{
Question u = Question.Find(QuestionID);
u.AnswerMedia_width = clipBitMap.Width;
u.AnswerMedia_height = clipBitMap.Height;
clipBitMap.Dispose();
FileStream fs1 = new FileStream(imagePath, FileMode.Open, FileAccess.Read);
Byte[] tempFile3 = new Byte[fs1.Length];
fs1.Read(tempFile3, 0, (int)fs1.Length);
u.AnswerMediaContent = tempFile3;
u.UpdateAndFlush();
fs1.Close();
textBlock1.Text = "答案图片：" + u.AnswerMedia_width.ToString();
}
catch
{
MessageBox.Show("找不到题序");
}
}
}
public void LoadDroppedFile(IDataObject data)
{
if (!data.GetDataPresent(DataFormats.FileDrop))
{
return;
}
var filePaths = (string[])(data.GetData(DataFormats.FileDrop));
if (filePaths == null || filePaths.Length <= 0)
{
return;
}
var filePath = filePaths[0];
if (filePath == null)
{
return;
}
var ext = Path.GetExtension(filePath);
ext = ext.ToLower();
if (String.Compare(ext, ".sdf", StringComparison.OrdinalIgnoreCase) != 0)
{
return;
}
dataSource = filePaths[0];
AnalyzeDatabase();
}
/// <summary>
/// PasteTextToRow.
/// </summary>
protected override void PasteTextToRow()
{
System.Windows.IDataObject dataObject = null;
dataObject = Clipboard.GetDataObject();
var clipBoardContent = dataObject.GetData(DataFormats.UnicodeText) as string;
string[] records = Regex.Split(clipBoardContent.ToString(), @"\r\n");
if (dataGrid.SelectionUnit == GridSelectionUnit.Row)
{
dataGrid.Focus();
bool isAddNewRow = this.dataGrid.IsAddNewIndex(this.dataGrid.SelectionController.CurrentCellManager.CurrentRowColumnIndex.RowIndex);
if (isAddNewRow)
{
PasteNewRow(records);
}
else
{
base.PasteTextToRow();
}
}
else
{
base.PasteTextToRow();
}
}
private async void OnDropItem(IDataObject data)
{
var filePath = (string[])data.GetData(DataFormats.FileDrop);
if (filePath != null)
{
var fileList = new List <string>(filePath);
var fileSystemItems = await AddFileSystemItems(fileList);
if (fileSystemItems != null)
{
if (FileList == null)
{
FileList = FileList.Create();
}
foreach (var item in fileSystemItems)
{
FileList.Items.Add(item);
}
}
}
if (FileList.Items.Count == 0)
{
FileList = null;
}
}
/// <summary>
/// コピーした項目を貼り付け
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PasteItem_Execute(object sender, System.Windows.Input.ExecutedRoutedEventArgs e)
{
// クリップボードの文字列をItemにパースして追加
System.Windows.IDataObject data = System.Windows.Clipboard.GetDataObject();
if (data.GetDataPresent(System.Windows.DataFormats.CommaSeparatedValue))
{
string str = (string)data.GetData(System.Windows.DataFormats.CommaSeparatedValue);
mViewModel.Items.Add(ViewModel.Item.Parse(str));
}
}
public static string GetTextPath()
{
System.Windows.IDataObject data = Clipboard.GetDataObject();
string ClipboardText = "";
if (data.GetDataPresent(DataFormats.Text))
{
ClipboardText = (string)data.GetData(DataFormats.Text);
// クリップボードのテキストを改行毎に配列に設定
string[] ClipBoardList = ClipboardText.Split('\n');
foreach (string file in ClipBoardList)
{
FileInfo fileinfo = new FileInfo(file);
DirectoryInfo dirinfo = new DirectoryInfo(file);
if (fileinfo.Exists || dirinfo.Exists)
{
ClipboardText = fileinfo.FullName;
break;
}
}
}
if (data.GetDataPresent(DataFormats.FileDrop))
{
foreach (string file in (string[])data.GetData(DataFormats.FileDrop))
{
FileInfo fileinfo = new FileInfo(file);
DirectoryInfo dirinfo = new DirectoryInfo(file);
if (fileinfo.Exists || dirinfo.Exists)
{
ClipboardText = fileinfo.FullName;
break;
}
}
}
return(ClipboardText);
}
private string GetStringData()
{
string ret = "";
System.Windows.IDataObject iData = System.Windows.Clipboard.GetDataObject();
if (iData.GetDataPresent(System.Windows.DataFormats.Text))
{
ret = (string)iData.GetData(System.Windows.DataFormats.Text);
}
return(ret);
}
private void BasicTest()
{
Question u = Question.Find(3);
//label1.Content = u.用户名;
u = Question.Find(3);
//通过剪切板进入到数据库
System.Windows.IDataObject clip1 = System.Windows.Clipboard.GetDataObject();
bool ifCanGetClilp = clip1.GetDataPresent(typeof(System.Drawing.Bitmap));
//object clipBitMap = clip1.GetData(DataFormats.Bitmap);
Bitmap clipBitMap = (Bitmap)clip1.GetData(typeof(System.Drawing.Bitmap));
String imagePath = @"../../TestCases/temp.png";
//另存为临时文件
clipBitMap.Save(imagePath, System.Drawing.Imaging.ImageFormat.Png);
u.Media_width = clipBitMap.Width;
u.Media_height = clipBitMap.Height;
clipBitMap.Dispose();
//读一个二进制文件，将该文件内容写入到DB中
FileStream fs1 = new FileStream(imagePath, FileMode.Open, FileAccess.Read);
Byte[] tempFile3 = new Byte[fs1.Length];
fs1.Read(tempFile3, 0, (int)fs1.Length);
u.MediaContent = tempFile3;
u.AnswerText = "测试";
u.UpdateAndFlush();
fs1.Close();
u = Question.TryFind(4);
if (u == null)
{
u = new Question();
u.QuestionID = 4;
//u.用户名 = "u4";
u.CreateAndFlush();
}
else
{
u.DeleteAndFlush();
}
}
public static string GetText()
{
System.Windows.IDataObject data = Clipboard.GetDataObject();
string ClipboardText = "";
if (data.GetDataPresent(DataFormats.Text))
{
ClipboardText = (string)data.GetData(DataFormats.Text);
// クリップボードのテキストを改行毎に配列に設定
string[] ClipBoardList = ClipboardText.Split('\n');
ClipboardText = string.Join(" ", ClipBoardList);
/*
* foreach (string text in ClipBoardList)
* {
* if (text.Trim().Length > 0)
* ClipboardText = text;
* }
*/
}
if (data.GetDataPresent(DataFormats.FileDrop))
{
foreach (string file in (string[])data.GetData(DataFormats.FileDrop))
{
FileInfo fileinfo = new FileInfo(file);
DirectoryInfo dirinfo = new DirectoryInfo(file);
if (fileinfo.Exists || dirinfo.Exists)
{
ClipboardText = fileinfo.Name;
break;
}
}
}
return(ClipboardText);
}
protected override void OnDrop(DragEventArgs e)
{
Win32Point wp;
e.Effects = DragDropEffects.Copy;
Point p = e.GetPosition(this);
wp.x = (int)p.X;
wp.y = (int)p.Y;
IDropTargetHelper dropHelper = (IDropTargetHelper) new DragDropHelper();
dropHelper.Drop((ComIDataObject)e.Data, ref wp, (int)e.Effects);
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
string[] files = e.Data.GetData(DataFormats.FileDrop) as string[];
this.OpenImage(files[0]);
}
System.Windows.IDataObject data = e.Data;
string[] formats = data.GetFormats();
if (formats.Contains("text/html"))
{
var obj = data.GetData("text/html");
string html = string.Empty;
if (obj is string)
{
html = (string)obj;
}
else if (obj is MemoryStream)
{
MemoryStream ms = (MemoryStream)obj;
byte[] buffer = new byte[ms.Length];
ms.Read(buffer, 0, (int)ms.Length);
if (buffer[1] == (byte)0) // Detecting unicode
{
html = System.Text.Encoding.Unicode.GetString(buffer);
}
else
{
html = System.Text.Encoding.ASCII.GetString(buffer);
}
}
// Using a regex to parse HTML, but JUST FOR THIS EXAMPLE :-)
var match = new Regex(@"<img[^>]+src=""([^""]*)""").Match(html);
if (match.Success)
{
Uri uri = new Uri(match.Groups[1].Value);
SetImageFromUri(uri);
}
}
}
/// <summary>
/// Gets managed data from a clipboard DataObject.
/// </summary>
/// <param name="dataObject">The DataObject to obtain the data from.</param>
/// <param name="format">The format for which to get the data in.</param>
/// <returns>The data object instance.</returns>
public static object GetDataEx(this IDataObject dataObject, string format)
{
// Get the data
object data = dataObject.GetData(format, true);
// If the data is a stream, we'll check to see if it
// is stamped by us for custom marshaling
if (data is Stream)
{
object data2 = ComDataObjectExtensions.GetManagedData((ComIDataObject)dataObject, format);
if (data2 != null)
{
return(data2);
}
}
return(data);
}
private void getClipDataFromPC()
{
byte[] PCClipData = null;
//PC向Phone侧发起握手，开始写
String handShakeFlag = "00000000";
byte[] data = System.Text.Encoding.Default.GetBytes(handShakeFlag);
/* int ret = DR2.Server.DataManager.sendRawData(data);
* if (ret == -1)
* {
* System.Windows.Forms.MessageBox.Show("pc与phone通信失败");
* }
*
* else */
{
//获得pc剪贴板内容，往手机侧送
// GetDataObject检索当前剪贴板上的数据
System.Windows.IDataObject iData = System.Windows.Clipboard.GetDataObject();
// 将数据与指定的格式进行匹配，返回bool
if (iData.GetDataPresent(System.Windows.DataFormats.Text))
{
// GetData检索数据并指定一个格式
String clipText = (string)iData.GetData(System.Windows.DataFormats.Text);
PCClipData = System.Text.Encoding.Default.GetBytes(clipText);
}
else
{
System.Windows.Forms.MessageBox.Show("剪贴板中数据不可转换为文本", "错误");
}
int isSuccess = DataManager.sendRawData(PCClipData);
//if(isSuccess==1)
// System.Windows.Forms.MessageBox.Show("pc向手机拷贝成功");
//else
// System.Windows.Forms.MessageBox.Show("pc向手机拷贝失败");
}
}
private static IEnumerable <Tuple <int, string> > InnerGetNamesWithPosition(System.Windows.IDataObject target,
string groupDescriptorTitle, Encoding encoding, int recordSize)
{
using (var inputStream = (MemoryStream)target.GetData(
groupDescriptorTitle))
{
int count = inputStream.ReadByte();
for (int i = 0; i < count; i++)
{
var buffer = new byte[recordSize];
int count1 = buffer.Length;
inputStream.FillBuffer(buffer, 0, count1);
var end = FileGroupDescriptorNameLocation;
while (buffer[end] != 0 || buffer[end + 1] != 0)
{
end += 2;
}
var retStr = encoding.GetString(buffer, FileGroupDescriptorNameLocation,
end - FileGroupDescriptorNameLocation);
yield return(Tuple.Create(i, retStr));
}
}
}
public Stream GetStreamFromIDataObject(IDataObject dataObject)
{
var formats = dataObject.GetFormats();
if (!formats.Contains("FileGroupDescriptorW"))
{
if (!formats.Contains("FileDrop"))
{
return(null);
}
var paths = (string[])dataObject.GetData("FileDrop");
foreach (var path in paths)
{
var attr = File.GetAttributes(path);
if (attr.HasFlag(FileAttributes.Directory))
{
// To-Do
continue;
}
return(File.OpenRead(path));
}
return(null);
}
var fileGroupDescriptorStream = (MemoryStream)dataObject.GetData("FileGroupDescriptorW", true);
var fileGroupDescriptorBytes = new byte[fileGroupDescriptorStream.Length];
fileGroupDescriptorStream.Read(fileGroupDescriptorBytes, 0, fileGroupDescriptorBytes.Length);
fileGroupDescriptorStream.Close();
var fileGroupDescriptorWPointer = Marshal.AllocHGlobal(fileGroupDescriptorBytes.Length);
Marshal.Copy(fileGroupDescriptorBytes, 0, fileGroupDescriptorWPointer, fileGroupDescriptorBytes.Length);
var fileGroupDescriptorObject = Marshal.PtrToStructure(fileGroupDescriptorWPointer, typeof(FileGroupDescriptor));
var fileGroupDescriptor = (FileGroupDescriptor)fileGroupDescriptorObject;
var fileNames = new string[fileGroupDescriptor.cItems];
var fileDescriptorPointer = (IntPtr)((int)fileGroupDescriptorWPointer + Marshal.SizeOf(fileGroupDescriptor.cItems));
for (int fileDescriptorIndex = 0; fileDescriptorIndex < fileGroupDescriptor.cItems; fileDescriptorIndex++)
{
var fileDescriptor = (FileDescriptor)Marshal.PtrToStructure(fileDescriptorPointer, typeof(FileDescriptor));
fileNames[fileDescriptorIndex] = fileDescriptor.cFileName;
fileDescriptorPointer = (IntPtr)((int)fileDescriptorPointer + Marshal.SizeOf(fileDescriptor));
}
Marshal.FreeHGlobal(fileGroupDescriptorWPointer);
var comDataObject = (System.Runtime.InteropServices.ComTypes.IDataObject)dataObject;
var dataFormat = DataFormats.GetDataFormat("FileContents");
for (int i = 0; i < fileGroupDescriptor.cItems; i++)
{
var format = new FORMATETC();
format.cfFormat = (short)dataFormat.Id;
format.dwAspect = DVASPECT.DVASPECT_CONTENT;
format.lindex = i;
format.tymed = TYMED.TYMED_ISTREAM | TYMED.TYMED_HGLOBAL | TYMED.TYMED_ISTORAGE | TYMED.TYMED_FILE;
var medium = new STGMEDIUM();
comDataObject.GetData(ref format, out medium);
if (medium.tymed == TYMED.TYMED_HGLOBAL)
{
var handle = medium.unionmember;
var pointer = GlobalLock(handle);
var size = GlobalSize(handle);
var bytes = new byte[size];
Marshal.Copy(pointer, bytes, 0, size);
var index = 0;
var serializedObjectID = new Guid("FD9EA796-3B13-4370-A679-56106BB288FB").ToByteArray();
var isSerializedObject = false;
if (size > serializedObjectID.Length)
{
isSerializedObject = true;
for (int j = 0; j < serializedObjectID.Length; j++)
{
if (serializedObjectID[j] != bytes[j])
{
isSerializedObject = false;
break;
}
}
if (isSerializedObject)
{
index = serializedObjectID.Length;
}
}
GlobalUnlock(handle);
var memoryStream = new MemoryStream(bytes, index, bytes.Length - index);
if (isSerializedObject)
{
var formatter = new BinaryFormatter();
formatter.AssemblyFormat = FormatterAssemblyStyle.Simple;
var deserializedObject = formatter.Deserialize(memoryStream);
}
return(memoryStream);
}
if (medium.tymed == TYMED.TYMED_ISTREAM)
{
var iStream = (IStream)Marshal.GetObjectForIUnknown(medium.unionmember);
Marshal.Release(medium.unionmember);
var iStreamStat = new STATSTG();
iStream.Stat(out iStreamStat, 0);
var iStreamSize = (int)iStreamStat.cbSize;
var iStreamContent = new byte[iStreamSize];
iStream.Read(iStreamContent, iStreamContent.Length, IntPtr.Zero);
Marshal.ReleaseComObject(iStream);
return(new MemoryStream(iStreamContent));
}
}
return(null);
}
public static IEnumerable <IFile> GetDroppedFiles(this System.Windows.IDataObject item, Func <string, IFile> fileFromDiskPath)
{
var fileNames = (item.GetData(DataFormats.FileDrop) as string[]) ?? new string[0];
return(fileNames.Length > 0 ? fileNames.Select(fileFromDiskPath) : item.GetFileDescriptorFiles());
}
private void Tag_Image_Drop(object sender, System.Windows.DragEventArgs e)
{
//should be a URL or a file URI
//http://stackoverflow.com/questions/8442085/receiving-an-image-dragged-from-web-page-to-wpf-window
System.Windows.IDataObject data = e.Data;
string[] formats = data.GetFormats();
object obj = null;
bool found = false;
if (formats.Contains("text/html"))
{
obj = data.GetData("text/html");
found = true;
}
else if (formats.Contains("HTML Format"))
{
obj = data.GetData("HTML Format");
found = true;
}
if (found)
{
string html = string.Empty;
if (obj is string)
{
html = (string)obj;
}
else if (obj is MemoryStream)
{
MemoryStream ms = (MemoryStream)obj;
byte[] buffer = new byte[ms.Length];
ms.Read(buffer, 0, (int)ms.Length);
if (buffer[1] == (byte)0) // Detecting unicode
{
html = System.Text.Encoding.Unicode.GetString(buffer);
}
else
{
html = System.Text.Encoding.ASCII.GetString(buffer);
}
}
// Using a regex to parse HTML, but JUST FOR THIS EXAMPLE :-)
var match = new Regex(@"<img[^/]src=""([^""]*)""").Match(html);
if (match.Success)
{
Uri uri = new Uri(match.Groups[1].Value);
SetImageFromUri(uri);
}
else
{
// Try look for a URL to an image, encoded (thanks google image search....)
match = new Regex(@"url=(.*?)&").Match(html);
//url=http%3A%2F%2Fi.imgur.com%2FK1lxb2L.jpg&
if (match.Success)
{
Uri uri = new Uri(Uri.UnescapeDataString(match.Groups[1].Value));
SetImageFromUri(uri);
}
}
}
}
public ClipboardDataForCache(System.Windows.IDataObject data, DateTime time)
{
Format = data.GetData(DataFormats.Serializable);
Time = time;
}
private void Tag_Image_Drop(object sender, System.Windows.DragEventArgs e)
{
//should be a URL or a file URI
//http://stackoverflow.com/questions/8442085/receiving-an-image-dragged-from-web-page-to-wpf-window
System.Windows.IDataObject data = e.Data;
string[] formats = data.GetFormats();
object obj = null;
bool found = false;
if (formats.Contains("text/html"))
{
obj = data.GetData("text/html");
found = true;
}
else if (formats.Contains("HTML Format"))
{
obj = data.GetData("HTML Format");
found = true;
}
if (found)
{
string html = string.Empty;
if (obj is string)
{
html = (string)obj;
//remove any whitespace, linebreaks
html = html.Replace(" ", "").Replace("\r\n", "");
}
else if (obj is MemoryStream)
{
MemoryStream ms = (MemoryStream)obj;
byte[] buffer = new byte[ms.Length];
ms.Read(buffer, 0, (int)ms.Length);
if (buffer[1] == (byte)0) // Detecting unicode
{
html = System.Text.Encoding.Unicode.GetString(buffer);
}
else
{
html = System.Text.Encoding.ASCII.GetString(buffer);
}
}
// Using a basic regex to parse HTML
var match = new Regex(@"<img[^>]*src=""([^""]*)""", RegexOptions.IgnoreCase).Match(html);
if (match.Success)
{
Uri uri = new Uri(match.Groups[1].Value);
SetImageFromUri(uri);
}
else
{
// Try look for a URL to an image, encoded (thanks google image search....)
match = new Regex(@"(url|src)=[""]?(.*?)(&|"")").Match(html);
//url=http%3A%2F%2Fi.imgur.com%2FK1lxb2L.jpg&
if (match.Success)
{
bool successImg = false;
int i = 0;
while (i < match.Groups.Count && successImg == false)
{
i++;
try
{
Uri uri = new Uri(Uri.UnescapeDataString(match.Groups[i].Value));
successImg = SetImageFromUri(uri);
}
catch (Exception)
{
//probably nothing to worry about...
}
}
}
//Samples:
//< IMG width = "432" height = "432" id = "irc_mi" style = "margin-top: 0px;" onload = "typeof google==='object'&&google.aft&&google.aft(this)" alt = "Image result for Aperio Mindfield Seasons Changing" src = "https://i1.sndcdn.com/artworks-000298160676-shcuz7-t500x500.jpg" ></ A >< !--EndFragment-- ></ DIV ></ BODY ></ HTML >
//<IMGclass="n3VNCb"style="margin:0px;width:585px;height:585px;"alt="Identities2(2020,File)|Discogs"src="https://img.discogs.com/wzI0NTRfX35BLMsrm-c1gFSY-qU=/fit-in/600x600/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-15423379-1591302400-6122.jpeg.jpg
}
}
}
