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< > BotCompany Repo | #1007755 // jenableUndoRedo - enable Ctrl+Z undo and Ctrl+Y redo for JTextComponent

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (8774L/49K).

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import javax.swing.undo.UndoManager;
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static <A extends JTextComponent> A jenableUndoRedo(A textcomp) {
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  swing {
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    new UndoManager undo;
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    vm_generalWeakSet("Undo Managers").add(undo);
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    setMeta(textcomp, "UndoManager", undo);
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    textcomp.getDocument().addUndoableEditListener(new UndoableEditListener() {
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      public void undoableEditHappened(UndoableEditEvent evt) {
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        undo.addEdit(evt.getEdit());
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      }
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    });
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    textcomp.getActionMap().put("Undo", abstractAction("Undo", r {
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      if (undo.canUndo()) undo.undo()
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    }));
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    textcomp.getActionMap().put("Redo", abstractAction("Redo", r {
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      if (undo.canRedo()) undo.redo()
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    }));
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    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");
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    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");
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  }
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  ret textcomp;
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}

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Snippet ID: #1007755
Snippet name: jenableUndoRedo - enable Ctrl+Z undo and Ctrl+Y redo for JTextComponent
Eternal ID of this version: #1007755/13
Text MD5: 877662b272e22f95f14d1e24481b41ba
Transpilation MD5: 706ad25f8c16fdefad6b3f49282eede6
Author: stefan
Category: javax / gui
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-04-04 00:37:45
Source code size: 862 bytes / 24 lines
Pitched / IR pitched: No / No
Views / Downloads: 535 / 638
Version history: 12 change(s)
Referenced in: [show references]