Examples of org.apache.pivot.wtk.text.Document

org.apache.pivot.wtk.text.Document
Node representing the root of an element hierarchy.

    @Override
    public boolean keyPressed(final Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
        boolean consumed = false;


        final TextArea textArea = (TextArea)getComponent();
        Document document = textArea.getDocument();


        Keyboard.Modifier commandModifier = Platform.getCommandModifier();
        if (document != null) {
            if (keyCode == Keyboard.KeyCode.ENTER
                && textArea.isEditable()) {
                textArea.insertParagraph();


                consumed = true;
            } else if (keyCode == Keyboard.KeyCode.DELETE
                && textArea.isEditable()) {
                textArea.delete(Direction.FORWARD);


                consumed = true;
            } else if (keyCode == Keyboard.KeyCode.BACKSPACE
                && textArea.isEditable()) {
                textArea.delete(Direction.BACKWARD);


                consumed = true;
            } else if (keyCode == Keyboard.KeyCode.LEFT) {
                int selectionStart = textArea.getSelectionStart();
                int selectionLength = textArea.getSelectionLength();


                if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
                    // Add the previous character to the selection
                    if (selectionStart > 0) {
                        selectionStart--;
                        selectionLength++;
                    }
                } else {
                    // Clear the selection and move the caret back by one
                    // character
                    if (selectionLength == 0
                        && selectionStart > 0) {
                        selectionStart--;
                    }


                    selectionLength = 0;
                }


                textArea.setSelection(selectionStart, selectionLength);
                scrollCharacterToVisible(selectionStart);


                caretX = caret.x;


                consumed = true;
            } else if (keyCode == Keyboard.KeyCode.RIGHT) {
                int selectionStart = textArea.getSelectionStart();
                int selectionLength = textArea.getSelectionLength();


                if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
                    // Add the next character to the selection
                    if (selectionStart + selectionLength < document.getCharacterCount()) {
                        selectionLength++;
                    }


                    textArea.setSelection(selectionStart, selectionLength);
                    scrollCharacterToVisible(selectionStart + selectionLength);
                } else {
                    // Clear the selection and move the caret forward by one
                    // character
                    if (selectionLength > 0) {
                        selectionStart += selectionLength - 1;
                    }


                    if (selectionStart < document.getCharacterCount() - 1) {
                        selectionStart++;
                    }


                    textArea.setSelection(selectionStart, 0);
                    scrollCharacterToVisible(selectionStart);


                    caretX = caret.x;
                }


                consumed = true;
            } else if (keyCode == Keyboard.KeyCode.UP) {
                int selectionStart = textArea.getSelectionStart();


                int offset = getNextInsertionPoint(caretX, selectionStart, Direction.BACKWARD);


                if (offset == -1) {
                    offset = 0;
                }


                int selectionLength;
                if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
                    int selectionEnd = selectionStart + textArea.getSelectionLength() - 1;
                    selectionLength = selectionEnd - offset + 1;
                } else {
                    selectionLength = 0;
                }


                textArea.setSelection(offset, selectionLength);
                scrollCharacterToVisible(offset);


                consumed = true;
            } else if (keyCode == Keyboard.KeyCode.DOWN) {
                int selectionStart = textArea.getSelectionStart();
                int selectionLength = textArea.getSelectionLength();


                if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
                    int from;
                    int x;
                    if (selectionLength == 0) {
                        // Get next insertion point from leading selection character
                        from = selectionStart;
                        x = caretX;
                    } else {
                        // Get next insertion point from right edge of trailing selection
                        // character
                        from = selectionStart + selectionLength - 1;


                        Bounds trailingSelectionBounds = getCharacterBounds(from);
                        x = trailingSelectionBounds.x + trailingSelectionBounds.width;
                    }


                    int offset = getNextInsertionPoint(x, from, Direction.FORWARD);


                    if (offset == -1) {
                        offset = documentView.getCharacterCount() - 1;
                    } else {
                        // If the next character is a paragraph terminator and is not the
                        // final terminator character, increment the selection
                        if (document.getCharacterAt(offset) == '\n'
                            && offset < documentView.getCharacterCount() - 1) {
                            offset++;
                        }
                    }


                    textArea.setSelection(selectionStart, offset - selectionStart);
                    scrollCharacterToVisible(offset);
                } else {
                    int from;
                    if (selectionLength == 0) {
                        // Get next insertion point from leading selection character
                        from = selectionStart;
                    } else {
                        // Get next insertion point from trailing selection character
                        from = selectionStart + selectionLength - 1;
                    }


                    int offset = getNextInsertionPoint(caretX, from, Direction.FORWARD);


                    if (offset == -1) {
                        offset = documentView.getCharacterCount() - 1;
                    }


                    textArea.setSelection(offset, 0);
                    scrollCharacterToVisible(offset);
                }


                consumed = true;
            } else if (Keyboard.isPressed(commandModifier)) {
                if (keyCode == Keyboard.KeyCode.A) {
                    textArea.setSelection(0, document.getCharacterCount());
                    consumed = true;
                } else if (keyCode == Keyboard.KeyCode.X
                    && textArea.isEditable()) {
                    textArea.cut();
                    consumed = true;

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        if (documentView != null) {
            documentView.detach();
            documentView = null;
        }


        Document document = textArea.getDocument();
        if (document != null) {
            documentView = (DocumentView)createNodeView(document);
            documentView.attach();
        }

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        @Override
        public void attach() {
            super.attach();


            // Attach child node views
            Document document = (Document)getNode();
            for (Node node : document) {
                add(createNodeView(node));
            }
        }

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        @Override
        public void nodeInserted(Element element, int index) {
            super.nodeInserted(element, index);


            Document document = (Document)getNode();
            insert(createNodeView(document.get(index)), index);
        }

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    public Document getDocument() {
        return document;
    }


    public void setDocument(Document document) {
        Document previousDocument = this.document;


        if (previousDocument != document) {
            if (previousDocument != null) {
                previousDocument.getNodeListeners().remove(documentListener);
            }


            if (document != null) {
                document.getNodeListeners().add(documentListener);
            }

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        }
    }


    public String getText() {
        String text = null;
        Document document = getDocument();


        if (document != null) {
            try {
                PlainTextSerializer serializer = new PlainTextSerializer();
                StringWriter writer = new StringWriter();

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        return text;
    }


    public void setText(String text) {
        Document document = null;


        if (text != null
            && text.length() > 0) {
            try {
                PlainTextSerializer serializer = new PlainTextSerializer();
                StringReader reader = new StringReader(text);
                document = serializer.readObject(reader);
            } catch(IOException exception) {
                throw new RuntimeException(exception);
            }
        } else {
            document = new Document();
            document.add(new Paragraph(""));
        }


        setDocument(document);
    }

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    }


    public void setText(URL text) {
        PlainTextSerializer plainTextSerializer = new PlainTextSerializer("UTF-8");


        Document document = null;
        InputStream inputStream = null;


        try {
            try {
                inputStream = text.openStream();

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            throw new IllegalStateException();
        }


        if (selectionLength > 0) {
            // Copy selection to clipboard
            Document selection = (Document)document.removeRange(selectionStart, selectionLength);


            String selectedText = null;
            try {
                PlainTextSerializer serializer = new PlainTextSerializer();
                StringWriter writer = new StringWriter();

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                    // actions)
                    delete(Direction.BACKWARD);
                }


                // Insert the clipboard contents
                Document document;
                int n;
                try {
                    PlainTextSerializer serializer = new PlainTextSerializer();
                    StringReader reader = new StringReader(text);
                    document = serializer.readObject(reader);
                    n = document.getCharacterCount();


                    this.document.insertRange(document, selectionStart);
                } catch(IOException exception) {
                    throw new RuntimeException(exception);
                }

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org.apache.pivot.wtk.skin.TextAreaSkin

org.apache.pivot.wtk.skin.TextAreaSkin$DocumentView

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org.apache.pivot.wtk.TextArea

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