public static void Insert(string key, ClipboardItem value, int index)
{
LocalClipboard.MainWindow.ListBox.Items.Insert(index, key);
LocalClipboard.Keys.Insert(index, key);
LocalClipboard.Dict.Add(key, value);
// create or overwrite CLIPBOARD file, then write all items' FileChars in the appropriate order
using (StreamWriter sw = LocalClipboard.ClipboardFile.CreateText())
{
// write items prior to index to CLIPBOARD file
for (int i = LocalClipboard.Keys.Count - 1; i > index; i--)
{
sw.Write(LocalClipboard.Dict[LocalClipboard.Keys[i]].FileChars);
}
// write current item's FileChars to CLIPBOARD file
sw.Write(LocalClipboard.Dict[LocalClipboard.Keys[index]].FileChars);
// write items following index to CLIPBOARD file
for (int i = index - 1; i >= 0; i--)
{
sw.Write(LocalClipboard.Dict[LocalClipboard.Keys[i]].FileChars);
}
}
}
public static void AddWithFile(string key, ClipboardItem value)
{
// if CLIPBOARD file is missing or empty
if (!LocalClipboard.ClipboardFile.Exists || LocalClipboard.ClipboardFile.Length == 0)
{
// create new file and prepare to write
using (StreamWriter sw = LocalClipboard.ClipboardFile.CreateText())
{
// write each item's FileChars to the CLIPBOARD file
for (int i = LocalClipboard.Keys.Count - 1; i >= 0; i--)
{
sw.Write(LocalClipboard.Dict[LocalClipboard.Keys[i]].FileChars);
}
}
}
// append the item's FileChars to the CLIPBOARD file
using (StreamWriter sw = LocalClipboard.ClipboardFile.AppendText())
{
sw.Write(value.FileChars);
}
// add to data structures in the local clipboard
LocalClipboard.Add(key, value);
}
public static void Remove(int index)
{
// return if index is invalid
if (index < 0)
{
return;
}
// remove the item at the index
string key = (string)MainWindow.ListBox.Items[index];
ClipboardItem clipboardItem = LocalClipboard.Dict[key];
LocalClipboard.Remove(clipboardItem.KeyText, clipboardItem);
// if there was an item located after the removed item, select that item
if (LocalClipboard.MainWindow.ListBox.Items.Count > index)
{
LocalClipboard.MainWindow.ListBox.SelectedIndex = index;
}
// else select the item located before the removed item
else
{
LocalClipboard.MainWindow.ListBox.SelectedIndex = index - 1;
}
// notify the user of the successful operation for 3 seconds
MsgLabel.Normal("Item removed!");
}
public static void Add(string key, ClipboardItem value)
{
try
{
// add to the back-end dictionary
LocalClipboard.Dict.Add(key, value);
}
// exception thrown on attempt to add a duplicate key to the dict
catch (ArgumentException)
{
// store item with the same key
ClipboardItem duplicateKeyItem = LocalClipboard.Dict[key];
// remove old item and prepare to replace with new item
LocalClipboard.Remove(duplicateKeyItem.KeyText, duplicateKeyItem);
// add new item
LocalClipboard.Dict.Add(key, value);
}
// add to back-end string collection of keys
LocalClipboard.Keys.Insert(0, key);
// add to visual clipboard last
LocalClipboard.MainWindow.ListBox.Items.Insert(0, key);
}
protected bool SetKeyDiff()
{
// calculate KeyDiff so that we can differentiate the items with duplicate key text
for (string key = this.KeyText; LocalClipboard.Dict.ContainsKey(key); key = this.KeyText + this.KeyDiff)
{
// store item with the same key
ClipboardItem duplicateKeyItem = LocalClipboard.Dict[key];
// if keys are equivalent but the items are not, increment KeyDiff and continue loop
if (!this.IsEquivalent(duplicateKeyItem))
{
this.KeyDiff++;
continue;
}
// if old item is at the target index, then there is no need to add this item
if (LocalClipboard.Keys.IndexOf(key) == 0)
{
return(false);
}
// if this point is reached, remove the old item and break from the loop
LocalClipboard.Remove(duplicateKeyItem.KeyText, duplicateKeyItem);
break;
}
return(true);
}
/// <summary>
/// All child classes of ClipboardItem must implement IsEquivalent.
///
/// This method determines if the param is functionally equivalent to
/// the current ClipboardItem instance.
/// </summary>
/// <param name="duplicateKeyItem">ClipboardItem with the same key as this instance</param>
/// <returns>whether or not the ClipboardItems are equivalent</returns>
protected override bool IsEquivalent(ClipboardItem duplicateKeyItem)
{
// check for valid type
if (duplicateKeyItem.Type != TypeEnum.FileDropList)
{
return(false);
}
// check for equivalent item count
if (this.FileDropList.Count != (duplicateKeyItem as FileItem).FileDropList.Count)
{
return(false);
}
// check equivalency of each filename
for (int i = 0; i < this.FileDropList.Count; i++)
{
if (this.FileDropList[i] != (duplicateKeyItem as FileItem).FileDropList[i])
{
return(false);
}
}
// test passed if this point is reached
return(true);
}
public static void Remove(string key, ClipboardItem value)
{
// first, remove the item's FileChars from the CLIPBOARD file
LocalClipboard.RemoveFromFile(value.FileChars);
// remove item by its key
LocalClipboard.MainWindow.ListBox.Items.Remove(key);
LocalClipboard.Keys.Remove(key);
LocalClipboard.Dict.Remove(key);
// determine if we need to delete any files along with the item
DirectoryInfo folder = null;
if (value is ImageItem)
{
folder = LocalClipboard.ImageFolder;
}
else if (value is AudioItem)
{
folder = LocalClipboard.AudioFolder;
}
else if (value is CustomItem)
{
folder = LocalClipboard.CustomFolder;
}
// nothing to do if folder is null or missing
if (folder == null || !folder.Exists)
{
return;
}
// delete image/audio/custom file if it exists
FileInfo fileToDelete = new FileInfo(Path.Combine(folder.FullName, key));
if (fileToDelete.Exists)
{
fileToDelete.Delete();
}
// delete the folder if it's empty, i.e. contains 0 files
FileInfo[] fileInfos = folder.GetFiles();
if (fileInfos.Length == 0)
{
folder.Delete();
}
}
/// <summary>
/// All child classes of ClipboardItem must implement IsEquivalent.
///
/// This method determines if the param is functionally equivalent to
/// the current ClipboardItem instance.
/// </summary>
/// <param name="duplicateKeyItem">ClipboardItem with the same key as this instance</param>
/// <returns>whether or not the ClipboardItems are equivalent</returns>
protected override bool IsEquivalent(ClipboardItem duplicateKeyItem)
{
// check for valid type
if (duplicateKeyItem.Type != TypeEnum.Image)
{
return(false);
}
// check for equivalent image dimensions
if (!this.Size.Equals((duplicateKeyItem as ImageItem).Size))
{
return(false);
}
// TODO: finish algorithm to accurately compare images
return(true);
}
private void OnArrowKeyDown(KeyEventArgs e)
{
// vars regarding listbox data
int total = this.listBox.Items.Count;
int current = this.listBox.SelectedIndex;
// base case 1: nothing in the clipboard
if (total == 0)
{
return;
}
// base case 2: no item is selected, or only one item exists
if (current < 0 || total == 1)
{
this.listBox.SelectedIndex = 0;
return;
}
// store the item at current index
ClipboardItem clipboardItem = LocalClipboard.Dict[(string)listBox.Items[current]];
// store new index for the item and/or index to be moved
int newIndex;
// base case 3: current is at the last index
if (current == total - 1)
{
// if box isn't checked, no wrapping or moving is needed
if (!this.wrapKeysItem.Checked)
{
return;
}
// we will be wrapping to the top, so newIndex is set to the top index, i.e. 0
newIndex = 0;
// move current item to the top index if shift is pressed
if (e.Shift)
{
LocalClipboard.Move(clipboardItem.KeyText, clipboardItem, newIndex);
// wrap selected index to the top index only if the box is checked
if (this.ChangeTopBottom.Checked)
{
this.listBox.SelectedIndex = newIndex;
}
else
{
this.listBox.SelectedIndex = current;
}
}
// else don't move the current item, and wrap the selected index unconditionally
else
{
this.listBox.SelectedIndex = newIndex;
}
return;
}
// store whether the selected index should be changed
bool changeIndex = true;
// if ctrl is being pressed, set newIndex to the bottom index
if (e.Control)
{
newIndex = total - 1;
// selected index should be unchanged if we're moving an item
// to the top/bottom, but the box is unchecked
if (e.Shift && !this.ChangeTopBottom.Checked)
{
changeIndex = false;
}
}
// else set newIndex to current + 1
else
{
newIndex = current + 1;
// changeIndex is unconditionally true if ctrl isn't being pressed
}
// move item to new index if shift is pressed
if (e.Shift)
{
LocalClipboard.Move(clipboardItem.KeyText, clipboardItem, newIndex);
}
// move selected index to new index if bool is satisfied
if (changeIndex)
{
this.listBox.SelectedIndex = newIndex;
}
else
{
this.listBox.SelectedIndex = current;
}
}
public static void Copy()
{
// check for valid SelectedIndex val before continuing
if (LocalClipboard.MainWindow.ListBox.SelectedIndex < 0)
{
return;
}
// Windows clipboard will be changed in this method; we don't want it to be handled
LocalClipboard.HandleClipboard = false;
// store the selected item
string key = (string)MainWindow.ListBox.SelectedItem;
ClipboardItem clipboardItem = LocalClipboard.Dict[key];
// store an error msg string that will notify the user if an error occurred
string errMsg = null;
// what's copied to the clipboard depends on the item's type
switch (clipboardItem.Type)
{
case ClipboardItem.TypeEnum.Text:
// copy the item's text to the Windows clipboard
Clipboard.SetText((clipboardItem as TextItem).Text);
break;
case ClipboardItem.TypeEnum.FileDropList:
// copy the item's files to the Windows clipboard
Clipboard.SetFileDropList((clipboardItem as FileItem).FileDropList);
break;
case ClipboardItem.TypeEnum.Image:
// make sure the image file exists
FileInfo imageFile = new FileInfo(Path.Combine(LocalClipboard.ImageFolder.FullName, clipboardItem.KeyText));
if (imageFile.Exists)
{
// get image from the file
using (Image image = Image.FromFile(imageFile.FullName))
{
// set image to the Windows clipboard
Clipboard.SetImage(image);
}
}
// else set errMsg to be reported
else
{
errMsg = "Image file is missing!";
}
break;
case ClipboardItem.TypeEnum.Audio:
// make sure the audio file exists
FileInfo audioFile = new FileInfo(Path.Combine(LocalClipboard.AudioFolder.FullName, clipboardItem.KeyText));
if (audioFile.Exists)
{
// get audio stream from the file
Stream audioStream = new MemoryStream();
using (FileStream fs = audioFile.OpenRead())
{
fs.CopyTo(audioStream);
}
using (audioStream)
{
// set audio to the Windows clipboard
Clipboard.SetAudio(audioStream);
}
}
// else set errMsg to be reported
else
{
errMsg = "Audio file is missing!";
}
break;
case ClipboardItem.TypeEnum.Custom:
// make sure the custom file exists
FileInfo customFile = new FileInfo(Path.Combine(LocalClipboard.CustomFolder.FullName, clipboardItem.KeyText));
if (customFile.Exists)
{
// store custom data from the serializable file
object data;
using (FileStream customStream = customFile.Open(FileMode.Open))
{
BinaryFormatter formatter = new BinaryFormatter();
data = formatter.Deserialize(customStream);
}
// set custom data to the Windows clipboard
Clipboard.SetData((clipboardItem as CustomItem).WritableFormat, data);
}
// else set errMsg to be reported
else
{
errMsg = "Custom file is missing!";
}
break;
}
// flip to true after algorithm is finished
LocalClipboard.HandleClipboard = true;
// notify to the user the results of the operation attempt
if (errMsg == null)
{
MsgLabel.Normal("Copied to clipboard!");
}
else
{
MsgLabel.Warn(errMsg);
}
}
/// <summary>
/// Moves item to new index
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="index"></param>
public static void Move(string key, ClipboardItem value, int index)
{
LocalClipboard.Remove(key, value);
LocalClipboard.Insert(key, value, index);
}
/// <summary>
/// All child classes of ClipboardItem must implement IsEquivalent.
///
/// This method determines if the param is functionally equivalent to
/// the current ClipboardItem instance.
/// </summary>
/// <param name="duplicateKeyItem">ClipboardItem with the same key as this instance</param>
/// <returns>whether or not the ClipboardItems are equivalent</returns>
protected override bool IsEquivalent(ClipboardItem duplicateKeyItem)
{
// TODO: implement method
return(false);
}
/// <summary>
/// All child classes of ClipboardItem must implement IsEquivalent.
///
/// This method determines if the param is functionally equivalent to
/// the current ClipboardItem instance.
/// </summary>
/// <param name="duplicateKeyItem">ClipboardItem with the same key as this instance</param>
/// <returns>whether or not the ClipboardItems are equivalent</returns>
protected override bool IsEquivalent(ClipboardItem duplicateKeyItem)
{
return(duplicateKeyItem.Type == TypeEnum.Audio &&
this.ByteLength == (duplicateKeyItem as AudioItem).ByteLength);
}
/// <summary>
/// All child classes of ClipboardItem must implement IsEquivalent.
///
/// This method determines if the param is functionally equivalent to
/// the current ClipboardItem instance.
/// </summary>
/// <param name="duplicateKeyItem">ClipboardItem with the same key as this instance</param>
/// <returns>whether or not the ClipboardItems are equivalent</returns>
protected override bool IsEquivalent(ClipboardItem duplicateKeyItem)
{
return(duplicateKeyItem.Type == TypeEnum.Text &&
this.Text == (duplicateKeyItem as TextItem).Text);
}
/// <summary> /// All child classes of ClipboardItem must implement IsEquivalent. /// /// This method determines if the param is functionally equivalent to /// the current ClipboardItem instance. /// </summary> /// <param name="duplicateKeyItem">ClipboardItem with the same key as this instance</param>LocalClipboard.AddWithFile /// <returns>whether or not the ClipboardItems are equivalent</returns> protected abstract bool IsEquivalent(ClipboardItem duplicateKeyItem);
