Example usage for javax.swing.text JTextComponent viewToModel

Introduction

In this page you can find the example usage for javax.swing.text JTextComponent viewToModel.

Prototype

@Deprecated(since = "9")
public int viewToModel(Point pt) 

Source Link

Document

Converts the given place in the view coordinate system to the nearest representative location in the model.

Usage

From source file:com.mirth.connect.client.ui.components.rsta.ac.js.MirthSourceCompletionProvider.java

@Override
public List<Completion> getCompletionsAt(JTextComponent tc, Point p) {
    Set<Completion> completions = new HashSet<Completion>();
    List<Completion> parentCompletions = super.getCompletionsAt(tc, p);
    if (CollectionUtils.isNotEmpty(parentCompletions)) {
        completions.addAll(parentCompletions);
    }/* w ww . ja  v a 2  s.c o  m*/

    int offset = tc.viewToModel(p);
    if (offset < 0 || offset >= tc.getDocument().getLength()) {
        lastCompletionsAtText = null;
        lastParameterizedCompletionsAt = null;
        return new ArrayList<Completion>(completions);
    }

    Segment s = new Segment();
    Document doc = tc.getDocument();
    Element root = doc.getDefaultRootElement();
    int line = root.getElementIndex(offset);
    Element elem = root.getElement(line);
    int start = elem.getStartOffset();
    int end = elem.getEndOffset() - 1;

    try {

        doc.getText(start, end - start, s);

        // Get the valid chars before the specified offset.
        int startOffs = s.offset + (offset - start) - 1;
        while (startOffs >= s.offset && Character.isLetterOrDigit(s.array[startOffs])) {
            startOffs--;
        }

        // Get the valid chars at and after the specified offset.
        int endOffs = s.offset + (offset - start);
        while (endOffs < s.offset + s.count && Character.isLetterOrDigit(s.array[endOffs])) {
            endOffs++;
        }

        int len = endOffs - startOffs - 1;
        if (len <= 0) {
            lastParameterizedCompletionsAt = null;
            return new ArrayList<Completion>(completions);
        }
        String text = new String(s.array, startOffs + 1, len);

        if (text.equals(lastCompletionsAtText)) {
            if (CollectionUtils.isNotEmpty(lastParameterizedCompletionsAt)) {
                completions.addAll(lastParameterizedCompletionsAt);
            }
            return new ArrayList<Completion>(completions);
        }

        lastCompletionsAtText = text;
        lastParameterizedCompletionsAt = completionCache.getClassCompletions(tc, text);

        if (CollectionUtils.isNotEmpty(lastParameterizedCompletionsAt)) {
            completions.addAll(lastParameterizedCompletionsAt);
        }
        return new ArrayList<Completion>(completions);

    } catch (BadLocationException ble) {
        ble.printStackTrace(); // Never happens
    }

    lastCompletionsAtText = null;
    lastParameterizedCompletionsAt = null;

    return new ArrayList<Completion>(completions);
}

---