Undo/Redo for Cut, Copy, Paste

I am trying to implement Undo/Redo for Cut,Copy,Paste in a Treetable.
I have to support undo/redo for multiple nodes being cut/copied. I am not sure how I should be going about implementing this. Any help will be greatly appreciated.
Thanks

If the class you are using doesn't support cut, copy, and paste already, usually what you do is store a list of actions in two lists. One for actions done, the other for redos (when there is an undo). Capture the data before and after each operation (you can create a KeyListener to listen for the events) and store that in a list. When undo is called, the last element on the list should be undone, either by taking it out of the list and reiterating through the elements still there, or implementing an undo method in the object you are trying to change. Then put that element on the redo list in case that is called. This works well with graphics and stuff, but I never tried to implement it in a tree with nodes and stuff, so that's about the most I can help with right now. I hope it helps some!
-JBoeing

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Assign another shotcut for cut/copy/paste? (I'm using Awsome WM)

I'm using awesome wm, and the shortcut keys for copying/pasting works perfectly. but I need them to work when I change my keyboard layout. It's normal that they don't work, since when the layout is "ir" ctrl + c becomes ctrl + ز. is there anyway to make this shortcut to do the copying too?

You might want to try the move tool instead of the hand tool the hand tool is a navigation tool it will allow you to move the document about but not and layers or art for that you need to use the move tool it is at the top of the tool panel
You are jut having a new house moment.
You'll back in the groove soon.

Problem of cut,copy,past ,undo and redo actions

hi
iam a student of computer science
iam working on my project notpad
in this i have to apply the command of doing cut ,copy ,past ,undo,redo
how can i use thes actions in my project
please help me for making my project
i will wait your response at [email protected]

what u can do is
just component.cut();
or
compoennt.copy();
component.paste();
for undo and redo
u need to take help of undo manager
which will tell u whether u can undo or not
same with redo case
hope it will work

How To set cut/copy/paste for JtextArea

Hai
i could not able to set cut copy paste in JTextArea
pls help me in this filed..
thanx.

This will do...... :)
private Hashtable actionHash = new Hashtable();
Action ac[]=new Action[3];
JButton butt[]=new JButton[3];
int count=0;
String ac_names[]={DefaultEditorKit.cutAction,DefaultEditorKit.copyAction,DefaultEditorKit.pasteAction};
Action[] actions = YourTextPane.getActions();
for (int i=0; i<actions.length; i++)
String name = (String)actions.getValue (Action.NAME);
actionHash.put(name, actions[i]);
for (int i=0; i<actions.length; i++)
ac[i] = getHashedAction(ac_names[i]);
butt[i]=new JButton(ac[i]);
protected Action getHashedAction(String name) {
return (Action)actionHash.get(name);

Too many options for cut, copy and paste

I have recently removed version 29 which was installed without my permission and reverted to version 28, which was FAR better. I now have a number of right click options for highlight, cut, copy and paste from web pages. I don't see anywhere to attach screenshots but I have FOUR of them, all showing different options for highlight, cut, copy or paste and they are all ridiculous. What can I do to resolve this?
Cheers.
OK. Screenshots added.
1) Dozens of options, of which only cut, copy, paste are needed for the highlighted text. The text is not a video, is not an audio file, is not a plugin, stupid to set as desktop, cannot be deleted.
2) Highlighted text is NOT a link.
3) Duh. No idea what this right click option is about.
4) This is the only right click option I want. Unfortunately, it only appears about once in fifty right clicks.

Do you mean names and passwords in the Password Manager or do you mean that you are no longer logged on to (remembered by) websites after closing and restarting Firefox?
There is a difference between remembering the name and password in the Password Manager and a "remember me" check box on a web page to log you in automatically.
The latter usually involves the creation of a special "remember me" cookie that is stored on your computer and that is send to the server.
If this "remember me" cookie is removed or gets corrupted or is not send to the server then the server won't remember you and you will have to sign in once again.
Details like websites remembering you (log you in automatically) are stored in a cookie.
*Create a cookie 'allow' exception to keep such cookies, especially in case of secure websites and when cookies expire when Firefox is closed.
*Tools > Options > Privacy > "Use custom settings for history" > Cookies: Exceptions
In case you are using "Clear history when Firefox closes":
*do not clear the Cookies
*do not clear the Site Preferences
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
*https://support.mozilla.org/kb/remove-browsing-search-and-download-history
Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, passwords, and other website specific data.
Clearing cookies will remove all specified (selected) cookies including cookies with an allow exception that you would like to keep.

Why are edit (Cut/Copy/Paste) controls not active?

I am new to QT. I am trying to cut up a large mpeg file (created by converting and IFO file from a DVD) into small video clips. However the main editing controls (undo, redo, cut, copy, paste, delete and trim to selection) are all de-activated. I don't have this problem with other mpeg files.
Any ideas why?
Dell Notebook Windows XP

MPEG-1 and 2 are playback formats and can't be edited using QuickTime Pro. It can't extract or export the audio portion from these muxed track formats.
MPEG Streamclip (Free) can convert MPEG to QuickTime formats and can also do basic editing.
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How do I reinstall the edit button on my Firefox 4 toolbar; cut, copy, paste, and print?

I recently have been having problems with my Firefox 4 tool bars. Right now, the Edit icons are no longer on the tool bar, specifically Cut, Copy, Paste, and Print. If there were other Edit icons, they too are gone. All the other icons have remained.
I would appreciate it if you could advise me how to reinstall those specific icons.
Also recently, ALL my tool bars, and task and status bar disappeared. This was only in Firefox 4.0; IE 8 was not affected. Clicking F11 did not work. I could not function without them. Then, a short time later, they "automatically" reappeared. I have not idea of why the disappeared or reappeared.
Thank you for any help you can provide.
Sanford A. Berman

You can find the Copy, Paste, and Cut buttons next to Firefox > Edit (and in its sub menu) and in the regular Edit menu on the menu bar (press F10 if the menu bar is hidden).
The buttons next to Firefox > Edit are enabled if there is something to do with them, just like with the toolbar buttons.
You can find the Copy, Paste, and Cut toolbar buttons in the toolbar palette in the Customize window and drag them on a toolbar.
Open the Customize window via "View > Toolbars > Customize" or via "Firefox > Options > Toolbar Layout"
*http://kb.mozillazine.org/Toolbar_customization
*https://support.mozilla.com/kb/Back+and+forward+or+other+toolbar+items+are+missing

0 down vote favorite share [fb] share [tw] How to hide cut/copy/paste/Replace- menu on the UIWebView when it is being displayed over the keyboard. Detail: I am having a HTML from, having text box, displayed using UIWebView. If user types in text b

How to hide cut/copy/paste/Replace… menu on the UIWebView when it is being displayed over the keyboard.
Detail: I am having a HTML from, having text box, displayed using UIWebView. If user types in text box it shows the keyboard. Now If user tap and hold on text box it shows a popup menu. Now while keyboard and pop up are being displayed user scrolls the view. At this time it shows pop up over the keyboard which I need to hide.
I tried setMenuVisible of UIMenuController when popup rect and keyboard rect intersects each other on viewDidScroll but it didn't help me.
Any clues will help a lot.
Thanks.

You are more likely to get an answer if you post programming problems to the Developer forum. This forum is intended for normal user level problems.

How to add cut,copy,paste functionality ?

Hello everybody,
I have to add cut,copy,paste functionality to my RichTextEditor for which I have already added
buttons to editors toolbar,Now I want to add these three functionalities to my editor.
Can anyone tell me or provide me some code sample for it ?
Thanks

Well Thank you for your response,What I am looking for is ,the user should be able to copy,cut and paste the selected text anywhere,
(e.g.If user selects the text and clicks the COPY button on the RichTextEditor , he can copy that selected text into notepad or any other editor or any other place in the system)
I have written the code for copy and its working properly
System.setClipboard(richTextEditor.selection.text);
I was wondering how to write the code for cut and paste.
many thanks again

Jeditor pane cut, copy, paste

I have an applet using jeditor panes. when you right click a popup shows and you can choose to cut, copy, paste, select all. I use the functions copy, cut, paste, selectAll which jeditorpane inherits. This works properly in java 1.3X but in java 1.41 it is not working. Is there cliboard communication problems with java 1.41?

Hi dhhyde,
If you are having issues with your cutting, copying and pasting items from your iPad, you may want to try some things to troubleshoot.
First, quit all running applications and test again -
iOS: Force an app to close
Next, I would try restarting the iPad -
Turn your iOS device off and on (restart) and reset
If the issue is still present, you may want to restore the iPad as a new device -
How to erase your iOS device and then set it up as a new device or restore it from backups
Thanks for using Apple Support Communities.
Best,
Brett L

Image selection,cut,copy,paste

Hi,
I need to select a portion of the graphics thats been drawn on a panel,
cut this image,copy and paste it on any part of the panel. I have tried using clipRect but am not sure whether this will work.
Please help me doing the cut,copy,paste of these images. It would be nice to have a sample code.
Arpana

Since your question is to learn and understand how Illustrator works, I would answer it with no. Unlike other programs, Illustrator can't cut parts of raster images because it is mostly vector graphics editing program. It is possible to end up with a rectangular shape of a cut raster images using the method Jacob described but technically behind the scenes it is not cutting the raster image as other raster programs like Photoshop do but it is generating a new image from the old one by a capability in Illustrator called rasterizing. Illustrator can rasterize (regenerate a new raster image) from any selection of objects - vector, raster, and both at a specified resolution using commands like Rasterize and Flatten Transparency. You can think of it as automating the process of exporting to a raster file format and placing it back in Illustrator.
For that reason, I would recommend to cut raster images in other programs like Photoshop and place them in the desired size in Illustrator or use clipping paths and Opacity masks to hide unwanted parts when this is preferable for flexibility or if you find it faster and less hassle than cutting the placed image outside of Illustrator.

Cut, copy, paste issues

I have been using a Z10 for the past 2 years, so I am familiar with ho the cut, copy, paste is supposed to work. My new Leap does cut, copy, paste but it does so inconsistently. If I have copied a password from my Password Keeper and used it, for example, banking, then I copy something different and try to paste what I just copied, when I paste, the password I copied previously gets pasted instead of what I copied most recently. Also, whe I attempt to paste something into an email and at the end of the email, I am unable to place the cursor at the end of the email, the last word of the email is highlighted which forces me to paste over the last word in the email. Of course the pasting itself isn't always the last thing I copied, so I, too often, have to long type everything that I should be able to copy, paste. I'm wondering if the glitch is in the newest OS. Th one I am using is: Software Release: 10.3.2.226 and OS Version: 10.3.2.2339. Thank you for your help.

... to continue.
This solution just occurred to me. You can select the range of text that will include all your selections, and then Format > Table > Convert Text to Table.
As a table you will be allowed to select non-contiguous cells and Cut or Copy them. When done, you can Format > Table > Convert Table to Text.
Jerry

Cut,copy,paste in textarea

JTextArea has predefined methods for cut,copy and paste. |||ly how do i implement cut,copy &paste in TextArea.

hope this code sample helps.
import java.awt.*;
import java.awt.event.*;
import java.awt.datatransfer.*;
public class ClipboardTest extends Frame implements ClipboardOwner{
     private Clipboard clipboard;
     private TextField copyFrom;
     private TextArea copyTo;
     private Button copy, paste;
     ClipboardTest(){
          setLayout( new FlowLayout());
          clipboard = Toolkit.getDefaultToolkit ().getSystemClipboard();
          copyFrom = new TextField(20);
          copyTo     = new TextArea(3, 20);
          copy = new Button("Copy");
          paste     = new Button("Paste");
          add(copyFrom); add(copyTo); add(copy); add(paste);
          copy.addActionListener( new CopyListener());
          paste.addActionListener( new PasteListener());
          addWindowListener( new WindowAdapter(){
               public void windowClosing(WindowEvent we){
                    dispose();
                    System.exit(0);
          setSize(200,200);
          show();
     class CopyListener implements ActionListener{
          public void actionPerformed(ActionEvent ae){
               StringSelection contents = new StringSelection(copyFrom.getSelectedText());
               clipboard.setContents(contents, ClipboardTest.this);
     class PasteListener implements ActionListener{
          public void actionPerformed(ActionEvent ae){
               Transferable contents = clipboard.getContents(this);
               if((contents != null) && (contents.isDataFlavorSupported(DataFlavor.stringFlavor))){
                    try{
                         String string;
                         string = (String) contents.getTransferData(DataFlavor.stringFlavor);
                         copyTo.append(string);
                    }catch(Exception e){
                         e.printStackTrace();
     public void lostOwnership(Clipboard clip, Transferable transferable){
               System.out.println("Lost ownership");
     public static void main (String args[]) {
          ClipboardTest clipBoardTest = new ClipboardTest();
try out this code sample and see if works for you.
Pradeep

Enabling/Disabling Cut/Copy/Paste buttons

Here's today's "Tear My Hair Out" problem.
I'm working on a data manipulation application, where we will be providing the standard cut/copy/paste functionality. We want to disable the menu items and toolbar buttons if there's nothing selected. I know this is possible, since both JDeveloper and NetBeans do it, but I'm at a loss for a clean way to do it.
The only thing I can come up with is to add key, mouse, and focus listeners to each text component and check the selection whenever an appropriate event happens which could affect it. Obviously a lot of overhead.
Anyone know a simpler way to do this?
Thanks.

Check out the Clipboard class, and the getSystemClipboard() method in Toolkit (I think).
If you were to store your data on the system clipboard, like most applications, then you can have a single thread which monitors the state of the clipboard and updates the state of the paste button as and when is appropriate.
Alternatively, use your own clipboard. Just so long as there is ONE resource which stores all the cut/copy data, and changes the state of the paste button accordingly.
For the cut/copy actions, you will probably have only one method which carries this out, so have this method update the state of the cut/copy buttons.
This really is very simple. If it's getting too complicated, you're doing it wrong. Hope this helps.

JList & cut/copy/paste and focus

I have a JFrame with a typical edit menu (cut/copy/paste) and also a JList. I have hooked up the menus such that cut copy paste 'do the right thing' in regards to the current selection of the JList. However, if the JList has focus and i keyboard ctrl-x for instance, it looks like the JList is grabbing and handling the cut, as opposed to my menu code. How do I get the JList to ignore the keyboard when it has focus, or do I install my handlers in the JList somehow?

Thanks for the response. This area really smells to me. Which I infer means i don't really understand this area, otherwise it wouldn't be so wretched.
For instance the default cut action on a JList, doesn't seem to do anything, while the copy works correctly.
So why would you ever use the default actions? I guess i can install my menu actions in the JList, just seems badly designed... so am i wrong?
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
public class MyJListFrame extends JFrame
     public static void main(String[] args)
          MyJListFrame f = new MyJListFrame();
          f.setVisible(true);
     public MyJListFrame()
          Container cp = getContentPane();
          DefaultListModel dtm = new DefaultListModel()
          {{addElement("This");addElement("is");addElement("a");addElement("test");}};
          cp.add( new JList( dtm ));
          pack();
}

Undo/Redo for Cut, Copy, Paste

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