Examples of javax.swing.text.Caret

javax.swing.text.Caret
A place within a document view that represents where things can be inserted into the document model. A caret has a position in the document referred to as a dot. The dot is where the caret is currently located in the model. There is a second position maintained by the caret that represents the other end of a selection called mark. If there is no selection the dot and mark will be equal. If a selection exists, the two values will be different.
The dot can be placed by either calling setDot or moveDot. Setting the dot has the effect of removing any selection that may have previously existed. The dot and mark will be equal. Moving the dot has the effect of creating a selection as the mark is left at whatever position it previously had. @author Timothy Prinzing

        // regression for HARMONY-2521          
        new javax.swing.JTextPane().updateUI();            
    }


    public void testInstallUI() throws Exception {
        Caret caret = jta.getCaret();
        Highlighter highlighter = jta.getHighlighter();
        String prefix = ((BasicTextUI) tf.getUI()).getPropertyPrefix();
        (jta.getUI()).uninstallUI(jta);
        TextUI ui = jta.getUI();
        assertTrue(ui instanceof TextAreaUI);
        TextAreaUI.callOrder = "";
        (jta.getUI()).installUI(jta);
        String tmp = TextAreaUI.callOrder;
        tmp = findAndRemoveSubstring(tmp, "installUI::");
        tmp = findAndRemoveSubstring(tmp, "installDefaults::");
        tmp = findAndRemoveSubstring(tmp, "installKeyboardActions::");
        tmp = findAndRemoveSubstring(tmp, "installListeners::");
        tmp = findAndRemoveSubstring(tmp, "modelChanged::");
        tmp = findAndRemoveSubstring(tmp, "createCaret::");
        tmp = findAndRemoveSubstring(tmp, "createHighlighter::");
        tmp = tmp.replaceAll("create::", "");
        assertEquals("", tmp);
        assertNotSame(caret, jta.getCaret());
        assertTrue(jta.getCaret() instanceof UIResource);
        assertNotSame(highlighter, jta.getHighlighter());
        assertTrue(jta.getHighlighter() instanceof UIResource);
        assertTrue(jta.getTransferHandler() instanceof UIResource);
        assertTrue(jta.isOpaque());
        int caretBlinkRate = ((Integer) getProperty(prefix, "caretBlinkRate")).intValue();
        assertEquals(caretBlinkRate, caret.getBlinkRate());
        assertEquals(jta.getDocument().getDefaultRootElement(), jta.getUI().getRootView(jta)
                .getElement());
    }

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        c.setFont(font);
        c.setBackground(background);
        c.setForeground(foreground);
        c.setBorder(border);
        c.setMargin(margin);
        Caret caret = tf.getCaret();
        if (caret != null) {
            caret.setBlinkRate(caretBlinkRate);
        }
    }

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        checkProperies(tf, Color.RED, Color.GREEN, Color.BLUE, Color.YELLOW, FONT, Color.BLACK,
                Color.YELLOW, new Insets(2, 4, 6, 3), newBorder);
    }


    public void testBasicCaret() {
        Caret caret = new BasicTextUI.BasicCaret();
        assertTrue(caret instanceof DefaultCaret);
        assertTrue(caret instanceof UIResource);
    }

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            // Obtain the offset where to jump
            pos = Utilities.getRowStartFromLineOffset(doc, line);
        }


        if (pos != -1) {
            Caret caret = pane.getCaret();
            if (caret instanceof BaseCaret) { // support extended scroll mode
                BaseCaret bCaret = (BaseCaret)caret;
                bCaret.setDot(pos, bCaret, EditorUI.SCROLL_FIND);
            }
            else {
                caret.setDot(pos);
            }
        }
    }

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            throws BadLocationException {


        int start = -1;
        try {
            //at first, find selected text range
            Caret caret = target.getCaret();
            int p0 = Math.min(caret.getDot(), caret.getMark());
            int p1 = Math.max(caret.getDot(), caret.getMark());
            doc.remove(p0, p1 - p0);


            //replace selected text by the inserted one
            start = caret.getDot();
            doc.insertString(start, s, null);
        } catch (BadLocationException ble) {
        }


        return start;

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public static ArrayList<String> getAllHippieMatches(JTextComponent target) {
        ArrayList<String> ret = new ArrayList<String>();


        EditorUI editorUI = Utilities.getEditorUI(target);
        Caret caret = target.getCaret();
        int dotPos = caret.getDot();
        
        WordMatch m = editorUI.getWordMatch();




        if(m!=null) {

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        jarName = selectedRobots.get(0).getFullClassName() + "_"
            + robotPackager.getPackagerOptionsPanel().getVersionField().getText() + ".jar";
      }


      getFilenameField().setText(fileName + jarName);
      Caret caret = getFilenameField().getCaret();


      caret.setDot(fileName.length());
      caret.moveDot(fileName.length() + jarName.length() - 4);


      getFilenameField().requestFocus();
    }

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    setMarkOccurrences(true);
    setBackground(BACKGROUND);
    setAntiAliasingEnabled(true);
    setEditable(false);
    Caret caret = getCaret();
    if (caret instanceof DefaultCaret) {
      ((DefaultCaret) caret).setUpdatePolicy(DefaultCaret.ALWAYS_UPDATE);
    }
    caret.setVisible(true);


    setHyperlinksEnabled(true);
    CodeLinkGenerator codeLinkProcessor = new CodeLinkGenerator(cls);
    setLinkGenerator(codeLinkProcessor);
    addHyperlinkListener(codeLinkProcessor);

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        // On a normal change of focus, Swing will turn off any selection
        // in a text field to help indicate focus is lost. This won't happen
        // automatically when transferring to SWT, so turn off the selection
        // manually.
        if (currentComponent instanceof JTextComponent) {
            Caret caret = ((JTextComponent)currentComponent).getCaret();
            if (caret != null) {
                caret.setSelectionVisible(false);
            }
        }
        awtHasFocus = false;
    }

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      public void scrollRectToVisible(Rectangle r) {
         // NO-OP
      }


      public void scrollToCaret(CaretEvent ev) {
         Caret c = getCaret();
         int d = ev.getDot();
         Point p = c.getMagicCaretPosition();
         if ( p != null ) {
            FontMetrics fm = getFontMetrics(getFont());
            int height = fm.getHeight();
            int left = 0;
            int width = 1;

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